From 796dfe5a3e8f0896b67886019f949f4038a54a1d Mon Sep 17 00:00:00 2001
From: Qingbao <qingbao86@gmail.com>
Date: Sun, 3 Dec 2017 00:52:13 +0100
Subject: [PATCH 1/4] Added real time searching and lazy loading. CSS taken
 from Bootstrap 4

---
 examples/dist/index.html            |     5 +
 examples/dist/index.js              | 32661 ++++++++++++--------------
 examples/dist/style.css             |    29 +
 examples/src/index.html             |     5 +
 examples/src/index.js               |     2 +
 examples/src/js/SearchingExample.js |   189 +
 src/js/CheckboxTree.js              |     5 +-
 src/scss/react-checkbox-tree.scss   |    27 +
 8 files changed, 15567 insertions(+), 17356 deletions(-)
 create mode 100644 examples/src/js/SearchingExample.js

diff --git a/examples/dist/index.html b/examples/dist/index.html
index 514d9a8a..9bfbc720 100644
--- a/examples/dist/index.html
+++ b/examples/dist/index.html
@@ -56,6 +56,11 @@ <h2>Large Data Example</h2>
       <p>The checkbox tree is capable of supporting a large number of nodes at once.</p>
       <div id="large-data-example"></div>
 
+      <h2>SearchingExample</h2>
+      <p>Real Time Searching and Lazy Loading</p>
+      <div id="searching-example"></div>
+
+
       <footer class="site-footer">
         <span class="site-footer-owner">
           <a href="https://github.com/jakezatecky/react-checkbox-tree">React Checkbox Tree</a> is maintained by <a href="https://github.com/jakezatecky">jakezatecky</a>.
diff --git a/examples/dist/index.js b/examples/dist/index.js
index 5ac7c39c..1f35ebae 100644
--- a/examples/dist/index.js
+++ b/examples/dist/index.js
@@ -7,7 +7,7 @@
 		exports["ReactCheckboxTree"] = factory();
 	else
 		root["ReactCheckboxTree"] = factory();
-})(this, function() {
+})(typeof self !== 'undefined' ? self : this, function() {
 return /******/ (function(modules) { // webpackBootstrap
 /******/ 	// The module cache
 /******/ 	var installedModules = {};
@@ -339,66 +339,6 @@ module.exports = emptyFunction;
 /* 4 */
 /***/ (function(module, exports, __webpack_require__) {
 
-"use strict";
-/* WEBPACK VAR INJECTION */(function(process) {/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- */
-
-
-
-/**
- * Use invariant() to assert state which your program assumes to be true.
- *
- * Provide sprintf-style format (only %s is supported) and arguments
- * to provide information about what broke and what you were
- * expecting.
- *
- * The invariant message will be stripped in production, but the invariant
- * will remain to ensure logic does not differ in production.
- */
-
-var validateFormat = function validateFormat(format) {};
-
-if (process.env.NODE_ENV !== 'production') {
-  validateFormat = function validateFormat(format) {
-    if (format === undefined) {
-      throw new Error('invariant requires an error message argument');
-    }
-  };
-}
-
-function invariant(condition, format, a, b, c, d, e, f) {
-  validateFormat(format);
-
-  if (!condition) {
-    var error;
-    if (format === undefined) {
-      error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
-    } else {
-      var args = [a, b, c, d, e, f];
-      var argIndex = 0;
-      error = new Error(format.replace(/%s/g, function () {
-        return args[argIndex++];
-      }));
-      error.name = 'Invariant Violation';
-    }
-
-    error.framesToPop = 1; // we don't care about invariant's own frame
-    throw error;
-  }
-}
-
-module.exports = invariant;
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
-
-/***/ }),
-/* 5 */
-/***/ (function(module, exports, __webpack_require__) {
-
 "use strict";
 
 
@@ -414,11 +354,11 @@ var _classnames = __webpack_require__(28);
 
 var _classnames2 = _interopRequireDefault(_classnames);
 
-var _isEqual = __webpack_require__(58);
+var _isEqual = __webpack_require__(54);
 
 var _isEqual2 = _interopRequireDefault(_isEqual);
 
-var _propTypes = __webpack_require__(10);
+var _propTypes = __webpack_require__(21);
 
 var _propTypes2 = _interopRequireDefault(_propTypes);
 
@@ -426,11 +366,11 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _nanoid = __webpack_require__(127);
+var _nanoid = __webpack_require__(125);
 
 var _nanoid2 = _interopRequireDefault(_nanoid);
 
-var _TreeNode = __webpack_require__(129);
+var _TreeNode = __webpack_require__(127);
 
 var _TreeNode2 = _interopRequireDefault(_TreeNode);
 
@@ -475,10 +415,7 @@ var CheckboxTree = function (_React$Component) {
                 checked = _ref.checked,
                 expanded = _ref.expanded;
 
-            if (!(0, _isEqual2.default)(this.props.nodes, nodes)) {
-                this.flattenNodes(nodes);
-            }
-
+            this.flattenNodes(nodes);
             this.unserializeLists({ checked: checked, expanded: expanded });
         }
     }, {
@@ -786,11 +723,11 @@ CheckboxTree.defaultProps = {
 exports.default = CheckboxTree;
 
 /***/ }),
-/* 6 */
+/* 5 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseIsNative = __webpack_require__(72),
-    getValue = __webpack_require__(78);
+var baseIsNative = __webpack_require__(68),
+    getValue = __webpack_require__(74);
 
 /**
  * Gets the native function at `key` of `object`.
@@ -809,7 +746,7 @@ module.exports = getNative;
 
 
 /***/ }),
-/* 7 */
+/* 6 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -905,6 +842,66 @@ module.exports = shouldUseNative() ? Object.assign : function (target, source) {
 };
 
 
+/***/ }),
+/* 7 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/* WEBPACK VAR INJECTION */(function(process) {/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+
+
+/**
+ * Use invariant() to assert state which your program assumes to be true.
+ *
+ * Provide sprintf-style format (only %s is supported) and arguments
+ * to provide information about what broke and what you were
+ * expecting.
+ *
+ * The invariant message will be stripped in production, but the invariant
+ * will remain to ensure logic does not differ in production.
+ */
+
+var validateFormat = function validateFormat(format) {};
+
+if (process.env.NODE_ENV !== 'production') {
+  validateFormat = function validateFormat(format) {
+    if (format === undefined) {
+      throw new Error('invariant requires an error message argument');
+    }
+  };
+}
+
+function invariant(condition, format, a, b, c, d, e, f) {
+  validateFormat(format);
+
+  if (!condition) {
+    var error;
+    if (format === undefined) {
+      error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');
+    } else {
+      var args = [a, b, c, d, e, f];
+      var argIndex = 0;
+      error = new Error(format.replace(/%s/g, function () {
+        return args[argIndex++];
+      }));
+      error.name = 'Invariant Violation';
+    }
+
+    error.framesToPop = 1; // we don't care about invariant's own frame
+    throw error;
+  }
+}
+
+module.exports = invariant;
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
+
 /***/ }),
 /* 8 */
 /***/ (function(module, exports, __webpack_require__) {
@@ -1002,46 +999,11 @@ module.exports = warning;
 /* 10 */
 /***/ (function(module, exports, __webpack_require__) {
 
-/* WEBPACK VAR INJECTION */(function(process) {/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-if (process.env.NODE_ENV !== 'production') {
-  var REACT_ELEMENT_TYPE = (typeof Symbol === 'function' &&
-    Symbol.for &&
-    Symbol.for('react.element')) ||
-    0xeac7;
-
-  var isValidElement = function(object) {
-    return typeof object === 'object' &&
-      object !== null &&
-      object.$$typeof === REACT_ELEMENT_TYPE;
-  };
-
-  // By explicitly using `prop-types` you are opting into new development behavior.
-  // http://fb.me/prop-types-in-prod
-  var throwOnDirectAccess = true;
-  module.exports = __webpack_require__(55)(isValidElement, throwOnDirectAccess);
-} else {
-  // By explicitly using `prop-types` you are opting into new production behavior.
-  // http://fb.me/prop-types-in-prod
-  module.exports = __webpack_require__(56)();
-}
-
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
-
-/***/ }),
-/* 11 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var listCacheClear = __webpack_require__(62),
-    listCacheDelete = __webpack_require__(63),
-    listCacheGet = __webpack_require__(64),
-    listCacheHas = __webpack_require__(65),
-    listCacheSet = __webpack_require__(66);
+var listCacheClear = __webpack_require__(58),
+    listCacheDelete = __webpack_require__(59),
+    listCacheGet = __webpack_require__(60),
+    listCacheHas = __webpack_require__(61),
+    listCacheSet = __webpack_require__(62);
 
 /**
  * Creates an list cache object.
@@ -1072,7 +1034,7 @@ module.exports = ListCache;
 
 
 /***/ }),
-/* 12 */
+/* 11 */
 /***/ (function(module, exports, __webpack_require__) {
 
 var eq = __webpack_require__(29);
@@ -1099,12 +1061,12 @@ module.exports = assocIndexOf;
 
 
 /***/ }),
-/* 13 */
+/* 12 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var Symbol = __webpack_require__(21),
-    getRawTag = __webpack_require__(74),
-    objectToString = __webpack_require__(75);
+var Symbol = __webpack_require__(19),
+    getRawTag = __webpack_require__(70),
+    objectToString = __webpack_require__(71);
 
 /** `Object#toString` result references. */
 var nullTag = '[object Null]',
@@ -1133,10 +1095,10 @@ module.exports = baseGetTag;
 
 
 /***/ }),
-/* 14 */
+/* 13 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var getNative = __webpack_require__(6);
+var getNative = __webpack_require__(5);
 
 /* Built-in method references that are verified to be native. */
 var nativeCreate = getNative(Object, 'create');
@@ -1145,10 +1107,10 @@ module.exports = nativeCreate;
 
 
 /***/ }),
-/* 15 */
+/* 14 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var isKeyable = __webpack_require__(87);
+var isKeyable = __webpack_require__(83);
 
 /**
  * Gets the data for `map`.
@@ -1169,7 +1131,7 @@ module.exports = getMapData;
 
 
 /***/ }),
-/* 16 */
+/* 15 */
 /***/ (function(module, exports) {
 
 /**
@@ -1204,7 +1166,7 @@ module.exports = isObjectLike;
 
 
 /***/ }),
-/* 17 */
+/* 16 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1218,9 +1180,9 @@ module.exports = isObjectLike;
 
 
 if (process.env.NODE_ENV !== 'production') {
-  var invariant = __webpack_require__(4);
+  var invariant = __webpack_require__(7);
   var warning = __webpack_require__(9);
-  var ReactPropTypesSecret = __webpack_require__(18);
+  var ReactPropTypesSecret = __webpack_require__(17);
   var loggedTypeFailures = {};
 }
 
@@ -1271,7 +1233,7 @@ module.exports = checkPropTypes;
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 18 */
+/* 17 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1290,49 +1252,10 @@ module.exports = ReactPropTypesSecret;
 
 
 /***/ }),
-/* 19 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- */
-
-
-
-var canUseDOM = !!(typeof window !== 'undefined' && window.document && window.document.createElement);
-
-/**
- * Simple, lightweight module assisting with the detection and context of
- * Worker. Helps avoid circular dependencies and allows code to reason about
- * whether or not they are in a Worker, even if they never include the main
- * `ReactWorker` dependency.
- */
-var ExecutionEnvironment = {
-
-  canUseDOM: canUseDOM,
-
-  canUseWorkers: typeof Worker !== 'undefined',
-
-  canUseEventListeners: canUseDOM && !!(window.addEventListener || window.attachEvent),
-
-  canUseViewport: canUseDOM && !!window.screen,
-
-  isInWorker: !canUseDOM // For now, this is true - might change in the future.
-
-};
-
-module.exports = ExecutionEnvironment;
-
-/***/ }),
-/* 20 */
+/* 18 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var getNative = __webpack_require__(6),
+var getNative = __webpack_require__(5),
     root = __webpack_require__(2);
 
 /* Built-in method references that are verified to be native. */
@@ -1342,7 +1265,7 @@ module.exports = Map;
 
 
 /***/ }),
-/* 21 */
+/* 19 */
 /***/ (function(module, exports, __webpack_require__) {
 
 var root = __webpack_require__(2);
@@ -1354,7 +1277,7 @@ module.exports = Symbol;
 
 
 /***/ }),
-/* 22 */
+/* 20 */
 /***/ (function(module, exports) {
 
 /**
@@ -1386,19 +1309,93 @@ module.exports = isArray;
 
 
 /***/ }),
-/* 23 */
+/* 21 */
 /***/ (function(module, exports, __webpack_require__) {
 
-"use strict";
-/* WEBPACK VAR INJECTION */(function(process) {
+/* WEBPACK VAR INJECTION */(function(process) {/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+if (process.env.NODE_ENV !== 'production') {
+  var REACT_ELEMENT_TYPE = (typeof Symbol === 'function' &&
+    Symbol.for &&
+    Symbol.for('react.element')) ||
+    0xeac7;
+
+  var isValidElement = function(object) {
+    return typeof object === 'object' &&
+      object !== null &&
+      object.$$typeof === REACT_ELEMENT_TYPE;
+  };
 
+  // By explicitly using `prop-types` you are opting into new development behavior.
+  // http://fb.me/prop-types-in-prod
+  var throwOnDirectAccess = true;
+  module.exports = __webpack_require__(123)(isValidElement, throwOnDirectAccess);
+} else {
+  // By explicitly using `prop-types` you are opting into new production behavior.
+  // http://fb.me/prop-types-in-prod
+  module.exports = __webpack_require__(124)();
+}
+
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
+
+/***/ }),
+/* 22 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
 /**
  * Copyright (c) 2013-present, Facebook, Inc.
  *
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @typechecks
+ */
+
+
+
+var canUseDOM = !!(typeof window !== 'undefined' && window.document && window.document.createElement);
+
+/**
+ * Simple, lightweight module assisting with the detection and context of
+ * Worker. Helps avoid circular dependencies and allows code to reason about
+ * whether or not they are in a Worker, even if they never include the main
+ * `ReactWorker` dependency.
+ */
+var ExecutionEnvironment = {
+
+  canUseDOM: canUseDOM,
+
+  canUseWorkers: typeof Worker !== 'undefined',
+
+  canUseEventListeners: canUseDOM && !!(window.addEventListener || window.attachEvent),
+
+  canUseViewport: canUseDOM && !!window.screen,
+
+  isInWorker: !canUseDOM // For now, this is true - might change in the future.
+
+};
+
+module.exports = ExecutionEnvironment;
+
+/***/ }),
+/* 23 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/* WEBPACK VAR INJECTION */(function(process) {
+
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
  */
 
 var emptyFunction = __webpack_require__(3);
@@ -1470,6 +1467,48 @@ module.exports = EventListener;
 /* 24 */
 /***/ (function(module, exports, __webpack_require__) {
 
+"use strict";
+
+
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
+ */
+
+/* eslint-disable fb-www/typeof-undefined */
+
+/**
+ * Same as document.activeElement but wraps in a try-catch block. In IE it is
+ * not safe to call document.activeElement if there is nothing focused.
+ *
+ * The activeElement will be null only if the document or document body is not
+ * yet defined.
+ *
+ * @param {?DOMDocument} doc Defaults to current document.
+ * @return {?DOMElement}
+ */
+function getActiveElement(doc) /*?DOMElement*/{
+  doc = doc || (typeof document !== 'undefined' ? document : undefined);
+  if (typeof doc === 'undefined') {
+    return null;
+  }
+  try {
+    return doc.activeElement || doc.body;
+  } catch (e) {
+    return doc.body;
+  }
+}
+
+module.exports = getActiveElement;
+
+/***/ }),
+/* 25 */
+/***/ (function(module, exports, __webpack_require__) {
+
 "use strict";
 /**
  * Copyright (c) 2013-present, Facebook, Inc.
@@ -1538,7 +1577,7 @@ function shallowEqual(objA, objB) {
 module.exports = shallowEqual;
 
 /***/ }),
-/* 25 */
+/* 26 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1581,7 +1620,7 @@ function containsNode(outerNode, innerNode) {
 module.exports = containsNode;
 
 /***/ }),
-/* 26 */
+/* 27 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1610,48 +1649,6 @@ function focusNode(node) {
 
 module.exports = focusNode;
 
-/***/ }),
-/* 27 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
-
-/* eslint-disable fb-www/typeof-undefined */
-
-/**
- * Same as document.activeElement but wraps in a try-catch block. In IE it is
- * not safe to call document.activeElement if there is nothing focused.
- *
- * The activeElement will be null only if the document or document body is not
- * yet defined.
- *
- * @param {?DOMDocument} doc Defaults to current document.
- * @return {?DOMElement}
- */
-function getActiveElement(doc) /*?DOMElement*/{
-  doc = doc || (typeof document !== 'undefined' ? document : undefined);
-  if (typeof doc === 'undefined') {
-    return null;
-  }
-  try {
-    return doc.activeElement || doc.body;
-  } catch (e) {
-    return doc.body;
-  }
-}
-
-module.exports = getActiveElement;
-
 /***/ }),
 /* 28 */
 /***/ (function(module, exports, __webpack_require__) {
@@ -1697,9 +1694,9 @@ var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
 		module.exports = classNames;
 	} else if (true) {
 		// register as 'classnames', consistent with npm package name
-		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = function () {
+		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function () {
 			return classNames;
-		}.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
+		}).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
 				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
 	} else {
 		window.classNames = classNames;
@@ -1754,7 +1751,7 @@ module.exports = eq;
 /* 30 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseGetTag = __webpack_require__(13),
+var baseGetTag = __webpack_require__(12),
     isObject = __webpack_require__(32);
 
 /** `Object#toString` result references. */
@@ -1802,7 +1799,7 @@ var freeGlobal = typeof global == 'object' && global && global.Object === Object
 
 module.exports = freeGlobal;
 
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(73)))
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(69)))
 
 /***/ }),
 /* 32 */
@@ -1877,11 +1874,11 @@ module.exports = toSource;
 /* 34 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var mapCacheClear = __webpack_require__(79),
-    mapCacheDelete = __webpack_require__(86),
-    mapCacheGet = __webpack_require__(88),
-    mapCacheHas = __webpack_require__(89),
-    mapCacheSet = __webpack_require__(90);
+var mapCacheClear = __webpack_require__(75),
+    mapCacheDelete = __webpack_require__(82),
+    mapCacheGet = __webpack_require__(84),
+    mapCacheHas = __webpack_require__(85),
+    mapCacheSet = __webpack_require__(86);
 
 /**
  * Creates a map cache object to store key-value pairs.
@@ -1915,9 +1912,9 @@ module.exports = MapCache;
 /* 35 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var SetCache = __webpack_require__(91),
-    arraySome = __webpack_require__(94),
-    cacheHas = __webpack_require__(95);
+var SetCache = __webpack_require__(87),
+    arraySome = __webpack_require__(90),
+    cacheHas = __webpack_require__(91);
 
 /** Used to compose bitmasks for value comparisons. */
 var COMPARE_PARTIAL_FLAG = 1,
@@ -2005,7 +2002,7 @@ module.exports = equalArrays;
 /***/ (function(module, exports, __webpack_require__) {
 
 /* WEBPACK VAR INJECTION */(function(module) {var root = __webpack_require__(2),
-    stubFalse = __webpack_require__(112);
+    stubFalse = __webpack_require__(108);
 
 /** Detect free variable `exports`. */
 var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
@@ -2049,37 +2046,37 @@ module.exports = isBuffer;
 /* 37 */
 /***/ (function(module, exports) {
 
-module.exports = function(module) {
-	if(!module.webpackPolyfill) {
-		module.deprecate = function() {};
-		module.paths = [];
-		// module.parent = undefined by default
-		if(!module.children) module.children = [];
-		Object.defineProperty(module, "loaded", {
-			enumerable: true,
-			get: function() {
-				return module.l;
-			}
-		});
-		Object.defineProperty(module, "id", {
-			enumerable: true,
-			get: function() {
-				return module.i;
-			}
-		});
-		module.webpackPolyfill = 1;
-	}
-	return module;
-};
+module.exports = function(module) {
+	if(!module.webpackPolyfill) {
+		module.deprecate = function() {};
+		module.paths = [];
+		// module.parent = undefined by default
+		if(!module.children) module.children = [];
+		Object.defineProperty(module, "loaded", {
+			enumerable: true,
+			get: function() {
+				return module.l;
+			}
+		});
+		Object.defineProperty(module, "id", {
+			enumerable: true,
+			get: function() {
+				return module.i;
+			}
+		});
+		module.webpackPolyfill = 1;
+	}
+	return module;
+};
 
 
 /***/ }),
 /* 38 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseIsTypedArray = __webpack_require__(114),
-    baseUnary = __webpack_require__(115),
-    nodeUtil = __webpack_require__(116);
+var baseIsTypedArray = __webpack_require__(110),
+    baseUnary = __webpack_require__(111),
+    nodeUtil = __webpack_require__(112);
 
 /* Node.js helper references. */
 var nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
@@ -2160,7 +2157,7 @@ Object.defineProperty(exports, "__esModule", {
 
 var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
 
-var _propTypes = __webpack_require__(10);
+var _propTypes = __webpack_require__(21);
 
 var _propTypes2 = _interopRequireDefault(_propTypes);
 
@@ -2194,30 +2191,34 @@ var _reactDom = __webpack_require__(44);
 
 var _reactDom2 = _interopRequireDefault(_reactDom);
 
-var _BasicExample = __webpack_require__(57);
+var _BasicExample = __webpack_require__(53);
 
 var _BasicExample2 = _interopRequireDefault(_BasicExample);
 
-var _CustomIconsExample = __webpack_require__(130);
+var _CustomIconsExample = __webpack_require__(128);
 
 var _CustomIconsExample2 = _interopRequireDefault(_CustomIconsExample);
 
-var _DisabledExample = __webpack_require__(131);
+var _DisabledExample = __webpack_require__(129);
 
 var _DisabledExample2 = _interopRequireDefault(_DisabledExample);
 
-var _NoCascadeExample = __webpack_require__(132);
+var _NoCascadeExample = __webpack_require__(130);
 
 var _NoCascadeExample2 = _interopRequireDefault(_NoCascadeExample);
 
-var _PessimisticToggleExample = __webpack_require__(133);
+var _PessimisticToggleExample = __webpack_require__(131);
 
 var _PessimisticToggleExample2 = _interopRequireDefault(_PessimisticToggleExample);
 
-var _LargeDataExample = __webpack_require__(134);
+var _LargeDataExample = __webpack_require__(132);
 
 var _LargeDataExample2 = _interopRequireDefault(_LargeDataExample);
 
+var _SearchingExample = __webpack_require__(133);
+
+var _SearchingExample2 = _interopRequireDefault(_SearchingExample);
+
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
 _reactDom2.default.render(_react2.default.createElement(_BasicExample2.default, null), document.getElementById('basic-example'));
@@ -2226,35 +2227,34 @@ _reactDom2.default.render(_react2.default.createElement(_DisabledExample2.defaul
 _reactDom2.default.render(_react2.default.createElement(_NoCascadeExample2.default, null), document.getElementById('no-cascade-example'));
 _reactDom2.default.render(_react2.default.createElement(_PessimisticToggleExample2.default, null), document.getElementById('pessimistic-toggle-example'));
 _reactDom2.default.render(_react2.default.createElement(_LargeDataExample2.default, null), document.getElementById('large-data-example'));
+_reactDom2.default.render(_react2.default.createElement(_SearchingExample2.default, null), document.getElementById('searching-example'));
 
 /***/ }),
 /* 42 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
-/*
- React v16.0.0
- react.production.min.js
-
- Copyright (c) 2013-present, Facebook, Inc.
+/** @license React v16.2.0
+ * react.production.min.js
+ *
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
 
- This source code is licensed under the MIT license found in the
- LICENSE file in the root directory of this source tree.
-*/
-var f=__webpack_require__(7),p=__webpack_require__(8);__webpack_require__(4);var r=__webpack_require__(3);
-function t(a){for(var b=arguments.length-1,d="Minified React error #"+a+"; visit http://facebook.github.io/react/docs/error-decoder.html?invariant\x3d"+a,e=0;e<b;e++)d+="\x26args[]\x3d"+encodeURIComponent(arguments[e+1]);b=Error(d+" for the full message or use the non-minified dev environment for full errors and additional helpful warnings.");b.name="Invariant Violation";b.framesToPop=1;throw b;}
-var u={isMounted:function(){return!1},enqueueForceUpdate:function(){},enqueueReplaceState:function(){},enqueueSetState:function(){}};function v(a,b,d){this.props=a;this.context=b;this.refs=p;this.updater=d||u}v.prototype.isReactComponent={};v.prototype.setState=function(a,b){"object"!==typeof a&&"function"!==typeof a&&null!=a?t("85"):void 0;this.updater.enqueueSetState(this,a,b,"setState")};v.prototype.forceUpdate=function(a){this.updater.enqueueForceUpdate(this,a,"forceUpdate")};
-function w(a,b,d){this.props=a;this.context=b;this.refs=p;this.updater=d||u}function x(){}x.prototype=v.prototype;var y=w.prototype=new x;y.constructor=w;f(y,v.prototype);y.isPureReactComponent=!0;function z(a,b,d){this.props=a;this.context=b;this.refs=p;this.updater=d||u}var A=z.prototype=new x;A.constructor=z;f(A,v.prototype);A.unstable_isAsyncReactComponent=!0;A.render=function(){return this.props.children};
-var B={Component:v,PureComponent:w,AsyncComponent:z},C={current:null},D=Object.prototype.hasOwnProperty,E="function"===typeof Symbol&&Symbol["for"]&&Symbol["for"]("react.element")||60103,F={key:!0,ref:!0,__self:!0,__source:!0};function G(a,b,d,e,c,g,k){return{$$typeof:E,type:a,key:b,ref:d,props:k,_owner:g}}
-G.createElement=function(a,b,d){var e,c={},g=null,k=null,m=null,q=null;if(null!=b)for(e in void 0!==b.ref&&(k=b.ref),void 0!==b.key&&(g=""+b.key),m=void 0===b.__self?null:b.__self,q=void 0===b.__source?null:b.__source,b)D.call(b,e)&&!F.hasOwnProperty(e)&&(c[e]=b[e]);var l=arguments.length-2;if(1===l)c.children=d;else if(1<l){for(var h=Array(l),n=0;n<l;n++)h[n]=arguments[n+2];c.children=h}if(a&&a.defaultProps)for(e in l=a.defaultProps,l)void 0===c[e]&&(c[e]=l[e]);return G(a,g,k,m,q,C.current,c)};
-G.createFactory=function(a){var b=G.createElement.bind(null,a);b.type=a;return b};G.cloneAndReplaceKey=function(a,b){return G(a.type,b,a.ref,a._self,a._source,a._owner,a.props)};
-G.cloneElement=function(a,b,d){var e=f({},a.props),c=a.key,g=a.ref,k=a._self,m=a._source,q=a._owner;if(null!=b){void 0!==b.ref&&(g=b.ref,q=C.current);void 0!==b.key&&(c=""+b.key);if(a.type&&a.type.defaultProps)var l=a.type.defaultProps;for(h in b)D.call(b,h)&&!F.hasOwnProperty(h)&&(e[h]=void 0===b[h]&&void 0!==l?l[h]:b[h])}var h=arguments.length-2;if(1===h)e.children=d;else if(1<h){l=Array(h);for(var n=0;n<h;n++)l[n]=arguments[n+2];e.children=l}return G(a.type,c,g,k,m,q,e)};
-G.isValidElement=function(a){return"object"===typeof a&&null!==a&&a.$$typeof===E};var H="function"===typeof Symbol&&Symbol.iterator,I="function"===typeof Symbol&&Symbol["for"]&&Symbol["for"]("react.element")||60103;function escape(a){var b={"\x3d":"\x3d0",":":"\x3d2"};return"$"+(""+a).replace(/[=:]/g,function(a){return b[a]})}var J=/\/+/g,K=[];
-function L(a,b,d,e){if(K.length){var c=K.pop();c.result=a;c.keyPrefix=b;c.func=d;c.context=e;c.count=0;return c}return{result:a,keyPrefix:b,func:d,context:e,count:0}}function M(a){a.result=null;a.keyPrefix=null;a.func=null;a.context=null;a.count=0;10>K.length&&K.push(a)}
-function N(a,b,d,e){var c=typeof a;if("undefined"===c||"boolean"===c)a=null;if(null===a||"string"===c||"number"===c||"object"===c&&a.$$typeof===I)return d(e,a,""===b?"."+O(a,0):b),1;var g=0;b=""===b?".":b+":";if(Array.isArray(a))for(var k=0;k<a.length;k++){c=a[k];var m=b+O(c,k);g+=N(c,m,d,e)}else if(m=H&&a[H]||a["@@iterator"],"function"===typeof m)for(a=m.call(a),k=0;!(c=a.next()).done;)c=c.value,m=b+O(c,k++),g+=N(c,m,d,e);else"object"===c&&(d=""+a,t("31","[object Object]"===d?"object with keys {"+
-Object.keys(a).join(", ")+"}":d,""));return g}function O(a,b){return"object"===typeof a&&null!==a&&null!=a.key?escape(a.key):b.toString(36)}function P(a,b){a.func.call(a.context,b,a.count++)}function Q(a,b,d){var e=a.result,c=a.keyPrefix;a=a.func.call(a.context,b,a.count++);Array.isArray(a)?R(a,e,d,r.thatReturnsArgument):null!=a&&(G.isValidElement(a)&&(a=G.cloneAndReplaceKey(a,c+(!a.key||b&&b.key===a.key?"":(""+a.key).replace(J,"$\x26/")+"/")+d)),e.push(a))}
-function R(a,b,d,e,c){var g="";null!=d&&(g=(""+d).replace(J,"$\x26/")+"/");b=L(b,g,e,c);null==a||N(a,"",Q,b);M(b)}var S={forEach:function(a,b,d){if(null==a)return a;b=L(null,null,b,d);null==a||N(a,"",P,b);M(b)},map:function(a,b,d){if(null==a)return a;var e=[];R(a,e,null,b,d);return e},count:function(a){return null==a?0:N(a,"",r.thatReturnsNull,null)},toArray:function(a){var b=[];R(a,b,null,r.thatReturnsArgument);return b}};
-module.exports={Children:{map:S.map,forEach:S.forEach,count:S.count,toArray:S.toArray,only:function(a){G.isValidElement(a)?void 0:t("143");return a}},Component:B.Component,PureComponent:B.PureComponent,unstable_AsyncComponent:B.AsyncComponent,createElement:G.createElement,cloneElement:G.cloneElement,isValidElement:G.isValidElement,createFactory:G.createFactory,version:"16.0.0",__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED:{ReactCurrentOwner:C,assign:f}};
+var m=__webpack_require__(6),n=__webpack_require__(8),p=__webpack_require__(3),q="function"===typeof Symbol&&Symbol["for"],r=q?Symbol["for"]("react.element"):60103,t=q?Symbol["for"]("react.call"):60104,u=q?Symbol["for"]("react.return"):60105,v=q?Symbol["for"]("react.portal"):60106,w=q?Symbol["for"]("react.fragment"):60107,x="function"===typeof Symbol&&Symbol.iterator;
+function y(a){for(var b=arguments.length-1,e="Minified React error #"+a+"; visit http://facebook.github.io/react/docs/error-decoder.html?invariant\x3d"+a,c=0;c<b;c++)e+="\x26args[]\x3d"+encodeURIComponent(arguments[c+1]);b=Error(e+" for the full message or use the non-minified dev environment for full errors and additional helpful warnings.");b.name="Invariant Violation";b.framesToPop=1;throw b;}
+var z={isMounted:function(){return!1},enqueueForceUpdate:function(){},enqueueReplaceState:function(){},enqueueSetState:function(){}};function A(a,b,e){this.props=a;this.context=b;this.refs=n;this.updater=e||z}A.prototype.isReactComponent={};A.prototype.setState=function(a,b){"object"!==typeof a&&"function"!==typeof a&&null!=a?y("85"):void 0;this.updater.enqueueSetState(this,a,b,"setState")};A.prototype.forceUpdate=function(a){this.updater.enqueueForceUpdate(this,a,"forceUpdate")};
+function B(a,b,e){this.props=a;this.context=b;this.refs=n;this.updater=e||z}function C(){}C.prototype=A.prototype;var D=B.prototype=new C;D.constructor=B;m(D,A.prototype);D.isPureReactComponent=!0;function E(a,b,e){this.props=a;this.context=b;this.refs=n;this.updater=e||z}var F=E.prototype=new C;F.constructor=E;m(F,A.prototype);F.unstable_isAsyncReactComponent=!0;F.render=function(){return this.props.children};var G={current:null},H=Object.prototype.hasOwnProperty,I={key:!0,ref:!0,__self:!0,__source:!0};
+function J(a,b,e){var c,d={},g=null,k=null;if(null!=b)for(c in void 0!==b.ref&&(k=b.ref),void 0!==b.key&&(g=""+b.key),b)H.call(b,c)&&!I.hasOwnProperty(c)&&(d[c]=b[c]);var f=arguments.length-2;if(1===f)d.children=e;else if(1<f){for(var h=Array(f),l=0;l<f;l++)h[l]=arguments[l+2];d.children=h}if(a&&a.defaultProps)for(c in f=a.defaultProps,f)void 0===d[c]&&(d[c]=f[c]);return{$$typeof:r,type:a,key:g,ref:k,props:d,_owner:G.current}}function K(a){return"object"===typeof a&&null!==a&&a.$$typeof===r}
+function escape(a){var b={"\x3d":"\x3d0",":":"\x3d2"};return"$"+(""+a).replace(/[=:]/g,function(a){return b[a]})}var L=/\/+/g,M=[];function N(a,b,e,c){if(M.length){var d=M.pop();d.result=a;d.keyPrefix=b;d.func=e;d.context=c;d.count=0;return d}return{result:a,keyPrefix:b,func:e,context:c,count:0}}function O(a){a.result=null;a.keyPrefix=null;a.func=null;a.context=null;a.count=0;10>M.length&&M.push(a)}
+function P(a,b,e,c){var d=typeof a;if("undefined"===d||"boolean"===d)a=null;var g=!1;if(null===a)g=!0;else switch(d){case "string":case "number":g=!0;break;case "object":switch(a.$$typeof){case r:case t:case u:case v:g=!0}}if(g)return e(c,a,""===b?"."+Q(a,0):b),1;g=0;b=""===b?".":b+":";if(Array.isArray(a))for(var k=0;k<a.length;k++){d=a[k];var f=b+Q(d,k);g+=P(d,f,e,c)}else if(null===a||"undefined"===typeof a?f=null:(f=x&&a[x]||a["@@iterator"],f="function"===typeof f?f:null),"function"===typeof f)for(a=
+f.call(a),k=0;!(d=a.next()).done;)d=d.value,f=b+Q(d,k++),g+=P(d,f,e,c);else"object"===d&&(e=""+a,y("31","[object Object]"===e?"object with keys {"+Object.keys(a).join(", ")+"}":e,""));return g}function Q(a,b){return"object"===typeof a&&null!==a&&null!=a.key?escape(a.key):b.toString(36)}function R(a,b){a.func.call(a.context,b,a.count++)}
+function S(a,b,e){var c=a.result,d=a.keyPrefix;a=a.func.call(a.context,b,a.count++);Array.isArray(a)?T(a,c,e,p.thatReturnsArgument):null!=a&&(K(a)&&(b=d+(!a.key||b&&b.key===a.key?"":(""+a.key).replace(L,"$\x26/")+"/")+e,a={$$typeof:r,type:a.type,key:b,ref:a.ref,props:a.props,_owner:a._owner}),c.push(a))}function T(a,b,e,c,d){var g="";null!=e&&(g=(""+e).replace(L,"$\x26/")+"/");b=N(b,g,c,d);null==a||P(a,"",S,b);O(b)}
+var U={Children:{map:function(a,b,e){if(null==a)return a;var c=[];T(a,c,null,b,e);return c},forEach:function(a,b,e){if(null==a)return a;b=N(null,null,b,e);null==a||P(a,"",R,b);O(b)},count:function(a){return null==a?0:P(a,"",p.thatReturnsNull,null)},toArray:function(a){var b=[];T(a,b,null,p.thatReturnsArgument);return b},only:function(a){K(a)?void 0:y("143");return a}},Component:A,PureComponent:B,unstable_AsyncComponent:E,Fragment:w,createElement:J,cloneElement:function(a,b,e){var c=m({},a.props),
+d=a.key,g=a.ref,k=a._owner;if(null!=b){void 0!==b.ref&&(g=b.ref,k=G.current);void 0!==b.key&&(d=""+b.key);if(a.type&&a.type.defaultProps)var f=a.type.defaultProps;for(h in b)H.call(b,h)&&!I.hasOwnProperty(h)&&(c[h]=void 0===b[h]&&void 0!==f?f[h]:b[h])}var h=arguments.length-2;if(1===h)c.children=e;else if(1<h){f=Array(h);for(var l=0;l<h;l++)f[l]=arguments[l+2];c.children=f}return{$$typeof:r,type:a.type,key:d,ref:g,props:c,_owner:k}},createFactory:function(a){var b=J.bind(null,a);b.type=a;return b},
+isValidElement:K,version:"16.2.0",__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED:{ReactCurrentOwner:G,assign:m}},V=Object.freeze({default:U}),W=V&&U||V;module.exports=W["default"]?W["default"]:W;
 
 
 /***/ }),
@@ -2262,7 +2262,7 @@ module.exports={Children:{map:S.map,forEach:S.forEach,count:S.count,toArray:S.to
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
-/* WEBPACK VAR INJECTION */(function(process) {/** @license React v16.0.0
+/* WEBPACK VAR INJECTION */(function(process) {/** @license React v16.2.0
  * react.development.js
  *
  * Copyright (c) 2013-present, Facebook, Inc.
@@ -2273,36 +2273,119 @@ module.exports={Children:{map:S.map,forEach:S.forEach,count:S.count,toArray:S.to
 
 
 
-if (process.env.NODE_ENV !== "production") {
-(function() {
 
+
+if (process.env.NODE_ENV !== "production") {
+  (function() {
 'use strict';
 
-var objectAssign$1 = __webpack_require__(7);
-var require$$0 = __webpack_require__(9);
+var _assign = __webpack_require__(6);
 var emptyObject = __webpack_require__(8);
-var invariant = __webpack_require__(4);
+var invariant = __webpack_require__(7);
+var warning = __webpack_require__(9);
 var emptyFunction = __webpack_require__(3);
-var checkPropTypes = __webpack_require__(17);
+var checkPropTypes = __webpack_require__(16);
+
+// TODO: this is special because it gets imported during build.
+
+var ReactVersion = '16.2.0';
+
+// The Symbol used to tag the ReactElement-like types. If there is no native Symbol
+// nor polyfill, then a plain number is used for performance.
+var hasSymbol = typeof Symbol === 'function' && Symbol['for'];
+
+var REACT_ELEMENT_TYPE = hasSymbol ? Symbol['for']('react.element') : 0xeac7;
+var REACT_CALL_TYPE = hasSymbol ? Symbol['for']('react.call') : 0xeac8;
+var REACT_RETURN_TYPE = hasSymbol ? Symbol['for']('react.return') : 0xeac9;
+var REACT_PORTAL_TYPE = hasSymbol ? Symbol['for']('react.portal') : 0xeaca;
+var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol['for']('react.fragment') : 0xeacb;
+
+var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
+var FAUX_ITERATOR_SYMBOL = '@@iterator';
+
+function getIteratorFn(maybeIterable) {
+  if (maybeIterable === null || typeof maybeIterable === 'undefined') {
+    return null;
+  }
+  var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
+  if (typeof maybeIterator === 'function') {
+    return maybeIterator;
+  }
+  return null;
+}
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * WARNING: DO NOT manually require this module.
+ * This is a replacement for `invariant(...)` used by the error code system
+ * and will _only_ be required by the corresponding babel pass.
+ * It always throws.
+ */
+
+/**
+ * Forked from fbjs/warning:
+ * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
  *
- * @providesModule reactProdInvariant
- * 
+ * Only change is we use console.warn instead of console.error,
+ * and do nothing when 'console' is not supported.
+ * This really simplifies the code.
+ * ---
+ * Similar to invariant but only logs a warning if the condition is not met.
+ * This can be used to log issues in development environments in critical
+ * paths. Removing the logging code for production environments will keep the
+ * same logic and follow the same code paths.
  */
 
+var lowPriorityWarning = function () {};
+
 {
-  var warning = require$$0;
+  var printWarning = function (format) {
+    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+      args[_key - 1] = arguments[_key];
+    }
+
+    var argIndex = 0;
+    var message = 'Warning: ' + format.replace(/%s/g, function () {
+      return args[argIndex++];
+    });
+    if (typeof console !== 'undefined') {
+      console.warn(message);
+    }
+    try {
+      // --- Welcome to debugging React ---
+      // This error was thrown as a convenience so that you can use this stack
+      // to find the callsite that caused this warning to fire.
+      throw new Error(message);
+    } catch (x) {}
+  };
+
+  lowPriorityWarning = function (condition, format) {
+    if (format === undefined) {
+      throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument');
+    }
+    if (!condition) {
+      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
+        args[_key2 - 2] = arguments[_key2];
+      }
+
+      printWarning.apply(undefined, [format].concat(args));
+    }
+  };
 }
 
+var lowPriorityWarning$1 = lowPriorityWarning;
+
+var didWarnStateUpdateForUnmountedComponent = {};
+
 function warnNoop(publicInstance, callerName) {
   {
     var constructor = publicInstance.constructor;
-    warning(false, '%s(...): Can only update a mounted or mounting component. ' + 'This usually means you called %s() on an unmounted component. ' + 'This is a no-op.\n\nPlease check the code for the %s component.', callerName, callerName, constructor && (constructor.displayName || constructor.name) || 'ReactClass');
+    var componentName = constructor && (constructor.displayName || constructor.name) || 'ReactClass';
+    var warningKey = componentName + '.' + callerName;
+    if (didWarnStateUpdateForUnmountedComponent[warningKey]) {
+      return;
+    }
+    warning(false, '%s(...): Can only update a mounted or mounting component. ' + 'This usually means you called %s() on an unmounted component. ' + 'This is a no-op.\n\nPlease check the code for the %s component.', callerName, callerName, componentName);
+    didWarnStateUpdateForUnmountedComponent[warningKey] = true;
   }
 }
 
@@ -2374,87 +2457,23 @@ var ReactNoopUpdateQueue = {
   }
 };
 
-var ReactNoopUpdateQueue_1 = ReactNoopUpdateQueue;
-
 /**
- * Copyright (c) 2014-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule lowPriorityWarning
+ * Base class helpers for the updating state of a component.
  */
+function Component(props, context, updater) {
+  this.props = props;
+  this.context = context;
+  this.refs = emptyObject;
+  // We initialize the default updater but the real one gets injected by the
+  // renderer.
+  this.updater = updater || ReactNoopUpdateQueue;
+}
+
+Component.prototype.isReactComponent = {};
 
 /**
- * Forked from fbjs/warning:
- * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
- *
- * Only change is we use console.warn instead of console.error,
- * and do nothing when 'console' is not supported.
- * This really simplifies the code.
- * ---
- * Similar to invariant but only logs a warning if the condition is not met.
- * This can be used to log issues in development environments in critical
- * paths. Removing the logging code for production environments will keep the
- * same logic and follow the same code paths.
- */
-
-var lowPriorityWarning = function () {};
-
-{
-  var printWarning = function (format) {
-    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-      args[_key - 1] = arguments[_key];
-    }
-
-    var argIndex = 0;
-    var message = 'Warning: ' + format.replace(/%s/g, function () {
-      return args[argIndex++];
-    });
-    if (typeof console !== 'undefined') {
-      console.warn(message);
-    }
-    try {
-      // --- Welcome to debugging React ---
-      // This error was thrown as a convenience so that you can use this stack
-      // to find the callsite that caused this warning to fire.
-      throw new Error(message);
-    } catch (x) {}
-  };
-
-  lowPriorityWarning = function (condition, format) {
-    if (format === undefined) {
-      throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument');
-    }
-    if (!condition) {
-      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
-        args[_key2 - 2] = arguments[_key2];
-      }
-
-      printWarning.apply(undefined, [format].concat(args));
-    }
-  };
-}
-
-var lowPriorityWarning_1 = lowPriorityWarning;
-
-/**
- * Base class helpers for the updating state of a component.
- */
-function ReactComponent(props, context, updater) {
-  this.props = props;
-  this.context = context;
-  this.refs = emptyObject;
-  // We initialize the default updater but the real one gets injected by the
-  // renderer.
-  this.updater = updater || ReactNoopUpdateQueue_1;
-}
-
-ReactComponent.prototype.isReactComponent = {};
-
-/**
- * Sets a subset of the state. Always use this to mutate
- * state. You should treat `this.state` as immutable.
+ * Sets a subset of the state. Always use this to mutate
+ * state. You should treat `this.state` as immutable.
  *
  * There is no guarantee that `this.state` will be immediately updated, so
  * accessing `this.state` after calling this method may return the old value.
@@ -2477,7 +2496,7 @@ ReactComponent.prototype.isReactComponent = {};
  * @final
  * @protected
  */
-ReactComponent.prototype.setState = function (partialState, callback) {
+Component.prototype.setState = function (partialState, callback) {
   !(typeof partialState === 'object' || typeof partialState === 'function' || partialState == null) ? invariant(false, 'setState(...): takes an object of state variables to update or a function which returns an object of state variables.') : void 0;
   this.updater.enqueueSetState(this, partialState, callback, 'setState');
 };
@@ -2496,7 +2515,7 @@ ReactComponent.prototype.setState = function (partialState, callback) {
  * @final
  * @protected
  */
-ReactComponent.prototype.forceUpdate = function (callback) {
+Component.prototype.forceUpdate = function (callback) {
   this.updater.enqueueForceUpdate(this, callback, 'forceUpdate');
 };
 
@@ -2511,9 +2530,9 @@ ReactComponent.prototype.forceUpdate = function (callback) {
     replaceState: ['replaceState', 'Refactor your code to use setState instead (see ' + 'https://github.com/facebook/react/issues/3236).']
   };
   var defineDeprecationWarning = function (methodName, info) {
-    Object.defineProperty(ReactComponent.prototype, methodName, {
+    Object.defineProperty(Component.prototype, methodName, {
       get: function () {
-        lowPriorityWarning_1(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]);
+        lowPriorityWarning$1(false, '%s(...) is deprecated in plain JavaScript React classes. %s', info[0], info[1]);
         return undefined;
       }
     });
@@ -2528,59 +2547,43 @@ ReactComponent.prototype.forceUpdate = function (callback) {
 /**
  * Base class helpers for the updating state of a component.
  */
-function ReactPureComponent(props, context, updater) {
-  // Duplicated from ReactComponent.
+function PureComponent(props, context, updater) {
+  // Duplicated from Component.
   this.props = props;
   this.context = context;
   this.refs = emptyObject;
   // We initialize the default updater but the real one gets injected by the
   // renderer.
-  this.updater = updater || ReactNoopUpdateQueue_1;
+  this.updater = updater || ReactNoopUpdateQueue;
 }
 
 function ComponentDummy() {}
-ComponentDummy.prototype = ReactComponent.prototype;
-var pureComponentPrototype = ReactPureComponent.prototype = new ComponentDummy();
-pureComponentPrototype.constructor = ReactPureComponent;
+ComponentDummy.prototype = Component.prototype;
+var pureComponentPrototype = PureComponent.prototype = new ComponentDummy();
+pureComponentPrototype.constructor = PureComponent;
 // Avoid an extra prototype jump for these methods.
-objectAssign$1(pureComponentPrototype, ReactComponent.prototype);
+_assign(pureComponentPrototype, Component.prototype);
 pureComponentPrototype.isPureReactComponent = true;
 
-function ReactAsyncComponent(props, context, updater) {
-  // Duplicated from ReactComponent.
+function AsyncComponent(props, context, updater) {
+  // Duplicated from Component.
   this.props = props;
   this.context = context;
   this.refs = emptyObject;
   // We initialize the default updater but the real one gets injected by the
   // renderer.
-  this.updater = updater || ReactNoopUpdateQueue_1;
+  this.updater = updater || ReactNoopUpdateQueue;
 }
 
-var asyncComponentPrototype = ReactAsyncComponent.prototype = new ComponentDummy();
-asyncComponentPrototype.constructor = ReactAsyncComponent;
+var asyncComponentPrototype = AsyncComponent.prototype = new ComponentDummy();
+asyncComponentPrototype.constructor = AsyncComponent;
 // Avoid an extra prototype jump for these methods.
-objectAssign$1(asyncComponentPrototype, ReactComponent.prototype);
+_assign(asyncComponentPrototype, Component.prototype);
 asyncComponentPrototype.unstable_isAsyncReactComponent = true;
 asyncComponentPrototype.render = function () {
   return this.props.children;
 };
 
-var ReactBaseClasses = {
-  Component: ReactComponent,
-  PureComponent: ReactPureComponent,
-  AsyncComponent: ReactAsyncComponent
-};
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactCurrentOwner
- * 
- */
-
 /**
  * Keeps track of the current owner.
  *
@@ -2595,18 +2598,8 @@ var ReactCurrentOwner = {
   current: null
 };
 
-var ReactCurrentOwner_1 = ReactCurrentOwner;
-
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 
-{
-  var warning$2 = require$$0;
-}
-
-// The Symbol used to tag the ReactElement type. If there is no native Symbol
-// nor polyfill, then a plain number is used for performance.
-var REACT_ELEMENT_TYPE$1 = typeof Symbol === 'function' && Symbol['for'] && Symbol['for']('react.element') || 0xeac7;
-
 var RESERVED_PROPS = {
   key: true,
   ref: true,
@@ -2645,7 +2638,7 @@ function defineKeyPropWarningGetter(props, displayName) {
   var warnAboutAccessingKey = function () {
     if (!specialPropKeyWarningShown) {
       specialPropKeyWarningShown = true;
-      warning$2(false, '%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
+      warning(false, '%s: `key` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
     }
   };
   warnAboutAccessingKey.isReactWarning = true;
@@ -2659,7 +2652,7 @@ function defineRefPropWarningGetter(props, displayName) {
   var warnAboutAccessingRef = function () {
     if (!specialPropRefWarningShown) {
       specialPropRefWarningShown = true;
-      warning$2(false, '%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
+      warning(false, '%s: `ref` is not a prop. Trying to access it will result ' + 'in `undefined` being returned. If you need to access the same ' + 'value within the child component, you should pass it as a different ' + 'prop. (https://fb.me/react-special-props)', displayName);
     }
   };
   warnAboutAccessingRef.isReactWarning = true;
@@ -2692,7 +2685,7 @@ function defineRefPropWarningGetter(props, displayName) {
 var ReactElement = function (type, key, ref, self, source, owner, props) {
   var element = {
     // This tag allow us to uniquely identify this as a React Element
-    $$typeof: REACT_ELEMENT_TYPE$1,
+    $$typeof: REACT_ELEMENT_TYPE,
 
     // Built-in properties that belong on the element
     type: type,
@@ -2747,9 +2740,9 @@ var ReactElement = function (type, key, ref, self, source, owner, props) {
 
 /**
  * Create and return a new ReactElement of the given type.
- * See https://facebook.github.io/react/docs/react-api.html#createelement
+ * See https://reactjs.org/docs/react-api.html#createelement
  */
-ReactElement.createElement = function (type, config, children) {
+function createElement(type, config, children) {
   var propName;
 
   // Reserved names are extracted
@@ -2807,7 +2800,7 @@ ReactElement.createElement = function (type, config, children) {
   }
   {
     if (key || ref) {
-      if (typeof props.$$typeof === 'undefined' || props.$$typeof !== REACT_ELEMENT_TYPE$1) {
+      if (typeof props.$$typeof === 'undefined' || props.$$typeof !== REACT_ELEMENT_TYPE) {
         var displayName = typeof type === 'function' ? type.displayName || type.name || 'Unknown' : type;
         if (key) {
           defineKeyPropWarningGetter(props, displayName);
@@ -2818,39 +2811,30 @@ ReactElement.createElement = function (type, config, children) {
       }
     }
   }
-  return ReactElement(type, key, ref, self, source, ReactCurrentOwner_1.current, props);
-};
+  return ReactElement(type, key, ref, self, source, ReactCurrentOwner.current, props);
+}
 
 /**
  * Return a function that produces ReactElements of a given type.
- * See https://facebook.github.io/react/docs/react-api.html#createfactory
- */
-ReactElement.createFactory = function (type) {
-  var factory = ReactElement.createElement.bind(null, type);
-  // Expose the type on the factory and the prototype so that it can be
-  // easily accessed on elements. E.g. `<Foo />.type === Foo`.
-  // This should not be named `constructor` since this may not be the function
-  // that created the element, and it may not even be a constructor.
-  // Legacy hook TODO: Warn if this is accessed
-  factory.type = type;
-  return factory;
-};
+ * See https://reactjs.org/docs/react-api.html#createfactory
+ */
 
-ReactElement.cloneAndReplaceKey = function (oldElement, newKey) {
+
+function cloneAndReplaceKey(oldElement, newKey) {
   var newElement = ReactElement(oldElement.type, newKey, oldElement.ref, oldElement._self, oldElement._source, oldElement._owner, oldElement.props);
 
   return newElement;
-};
+}
 
 /**
  * Clone and return a new ReactElement using element as the starting point.
- * See https://facebook.github.io/react/docs/react-api.html#cloneelement
+ * See https://reactjs.org/docs/react-api.html#cloneelement
  */
-ReactElement.cloneElement = function (element, config, children) {
+function cloneElement(element, config, children) {
   var propName;
 
   // Original props are copied
-  var props = objectAssign$1({}, element.props);
+  var props = _assign({}, element.props);
 
   // Reserved names are extracted
   var key = element.key;
@@ -2869,7 +2853,7 @@ ReactElement.cloneElement = function (element, config, children) {
     if (hasValidRef(config)) {
       // Silently steal the ref from the parent.
       ref = config.ref;
-      owner = ReactCurrentOwner_1.current;
+      owner = ReactCurrentOwner.current;
     }
     if (hasValidKey(config)) {
       key = '' + config.key;
@@ -2906,30 +2890,18 @@ ReactElement.cloneElement = function (element, config, children) {
   }
 
   return ReactElement(element.type, key, ref, self, source, owner, props);
-};
+}
 
 /**
  * Verifies the object is a ReactElement.
- * See https://facebook.github.io/react/docs/react-api.html#isvalidelement
+ * See https://reactjs.org/docs/react-api.html#isvalidelement
  * @param {?object} object
  * @return {boolean} True if `object` is a valid component.
  * @final
  */
-ReactElement.isValidElement = function (object) {
-  return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE$1;
-};
-
-var ReactElement_1 = ReactElement;
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactDebugCurrentFrame
- * 
- */
+function isValidElement(object) {
+  return typeof object === 'object' && object !== null && object.$$typeof === REACT_ELEMENT_TYPE;
+}
 
 var ReactDebugCurrentFrame = {};
 
@@ -2946,21 +2918,6 @@ var ReactDebugCurrentFrame = {};
   };
 }
 
-var ReactDebugCurrentFrame_1 = ReactDebugCurrentFrame;
-
-{
-  var warning$1 = require$$0;
-
-  var _require = ReactDebugCurrentFrame_1,
-      getStackAddendum = _require.getStackAddendum;
-}
-
-var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
-var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.
-// The Symbol used to tag the ReactElement type. If there is no native Symbol
-// nor polyfill, then a plain number is used for performance.
-var REACT_ELEMENT_TYPE = typeof Symbol === 'function' && Symbol['for'] && Symbol['for']('react.element') || 0xeac7;
-
 var SEPARATOR = '.';
 var SUBSEPARATOR = ':';
 
@@ -3044,10 +3001,28 @@ function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext)
     children = null;
   }
 
-  if (children === null || type === 'string' || type === 'number' ||
-  // The following is inlined from ReactElement. This means we can optimize
-  // some checks. React Fiber also inlines this logic for similar purposes.
-  type === 'object' && children.$$typeof === REACT_ELEMENT_TYPE) {
+  var invokeCallback = false;
+
+  if (children === null) {
+    invokeCallback = true;
+  } else {
+    switch (type) {
+      case 'string':
+      case 'number':
+        invokeCallback = true;
+        break;
+      case 'object':
+        switch (children.$$typeof) {
+          case REACT_ELEMENT_TYPE:
+          case REACT_CALL_TYPE:
+          case REACT_RETURN_TYPE:
+          case REACT_PORTAL_TYPE:
+            invokeCallback = true;
+        }
+    }
+  }
+
+  if (invokeCallback) {
     callback(traverseContext, children,
     // If it's the only child, treat the name as if it was wrapped in an array
     // so that it's consistent if the number of children grows.
@@ -3067,12 +3042,12 @@ function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext)
       subtreeCount += traverseAllChildrenImpl(child, nextName, callback, traverseContext);
     }
   } else {
-    var iteratorFn = ITERATOR_SYMBOL && children[ITERATOR_SYMBOL] || children[FAUX_ITERATOR_SYMBOL];
+    var iteratorFn = getIteratorFn(children);
     if (typeof iteratorFn === 'function') {
       {
         // Warn about using Maps as children
         if (iteratorFn === children.entries) {
-          warning$1(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', getStackAddendum());
+          warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', ReactDebugCurrentFrame.getStackAddendum());
           didWarnAboutMaps = true;
         }
       }
@@ -3088,7 +3063,7 @@ function traverseAllChildrenImpl(children, nameSoFar, callback, traverseContext)
     } else if (type === 'object') {
       var addendum = '';
       {
-        addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + getStackAddendum();
+        addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + ReactDebugCurrentFrame.getStackAddendum();
       }
       var childrenString = '' + children;
       invariant(false, 'Objects are not valid as a React child (found: %s).%s', childrenString === '[object Object]' ? 'object with keys {' + Object.keys(children).join(', ') + '}' : childrenString, addendum);
@@ -3150,7 +3125,7 @@ function forEachSingleChild(bookKeeping, child, name) {
 /**
  * Iterates through children that are typically specified as `props.children`.
  *
- * See https://facebook.github.io/react/docs/react-api.html#react.children.foreach
+ * See https://reactjs.org/docs/react-api.html#react.children.foreach
  *
  * The provided forEachFunc(child, index) will be called for each
  * leaf child.
@@ -3179,8 +3154,8 @@ function mapSingleChildIntoContext(bookKeeping, child, childKey) {
   if (Array.isArray(mappedChild)) {
     mapIntoWithKeyPrefixInternal(mappedChild, result, childKey, emptyFunction.thatReturnsArgument);
   } else if (mappedChild != null) {
-    if (ReactElement_1.isValidElement(mappedChild)) {
-      mappedChild = ReactElement_1.cloneAndReplaceKey(mappedChild,
+    if (isValidElement(mappedChild)) {
+      mappedChild = cloneAndReplaceKey(mappedChild,
       // Keep both the (mapped) and old keys if they differ, just as
       // traverseAllChildren used to do for objects as children
       keyPrefix + (mappedChild.key && (!child || child.key !== mappedChild.key) ? escapeUserProvidedKey(mappedChild.key) + '/' : '') + childKey);
@@ -3202,7 +3177,7 @@ function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) {
 /**
  * Maps children that are typically specified as `props.children`.
  *
- * See https://facebook.github.io/react/docs/react-api.html#react.children.map
+ * See https://reactjs.org/docs/react-api.html#react.children.map
  *
  * The provided mapFunction(child, key, index) will be called for each
  * leaf child.
@@ -3225,7 +3200,7 @@ function mapChildren(children, func, context) {
  * Count the number of children that are typically specified as
  * `props.children`.
  *
- * See https://facebook.github.io/react/docs/react-api.html#react.children.count
+ * See https://reactjs.org/docs/react-api.html#react.children.count
  *
  * @param {?*} children Children tree container.
  * @return {number} The number of children.
@@ -3238,7 +3213,7 @@ function countChildren(children, context) {
  * Flatten a children object (typically specified as `props.children`) and
  * return an array with appropriately re-keyed children.
  *
- * See https://facebook.github.io/react/docs/react-api.html#react.children.toarray
+ * See https://reactjs.org/docs/react-api.html#react.children.toarray
  */
 function toArray(children) {
   var result = [];
@@ -3246,31 +3221,11 @@ function toArray(children) {
   return result;
 }
 
-var ReactChildren = {
-  forEach: forEachChildren,
-  map: mapChildren,
-  count: countChildren,
-  toArray: toArray
-};
-
-var ReactChildren_1 = ReactChildren;
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactVersion
- */
-
-var ReactVersion = '16.0.0';
-
 /**
  * Returns the first child in a collection of children and verifies that there
  * is only one child in the collection.
  *
- * See https://facebook.github.io/react/docs/react-api.html#react.children.only
+ * See https://reactjs.org/docs/react-api.html#react.children.only
  *
  * The current implementation of this function assumes that a single child gets
  * passed without a wrapper, but the purpose of this helper function is to
@@ -3281,69 +3236,38 @@ var ReactVersion = '16.0.0';
  * structure.
  */
 function onlyChild(children) {
-  !ReactElement_1.isValidElement(children) ? invariant(false, 'React.Children.only expected to receive a single React element child.') : void 0;
+  !isValidElement(children) ? invariant(false, 'React.Children.only expected to receive a single React element child.') : void 0;
   return children;
 }
 
-var onlyChild_1 = onlyChild;
-
-/**
- * Copyright (c) 2016-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * 
- * @providesModule describeComponentFrame
- */
-
-var describeComponentFrame$1 = function (name, source, ownerName) {
+var describeComponentFrame = function (name, source, ownerName) {
   return '\n    in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : '');
 };
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule getComponentName
- * 
- */
+function getComponentName(fiber) {
+  var type = fiber.type;
 
-function getComponentName$1(instanceOrFiber) {
-  if (typeof instanceOrFiber.getName === 'function') {
-    // Stack reconciler
-    var instance = instanceOrFiber;
-    return instance.getName();
+  if (typeof type === 'string') {
+    return type;
   }
-  if (typeof instanceOrFiber.tag === 'number') {
-    // Fiber reconciler
-    var fiber = instanceOrFiber;
-    var type = fiber.type;
-
-    if (typeof type === 'string') {
-      return type;
-    }
-    if (typeof type === 'function') {
-      return type.displayName || type.name;
-    }
+  if (typeof type === 'function') {
+    return type.displayName || type.name;
   }
   return null;
 }
 
-var getComponentName_1 = getComponentName$1;
+/**
+ * ReactElementValidator provides a wrapper around a element factory
+ * which validates the props passed to the element. This is intended to be
+ * used only in DEV and could be replaced by a static type checker for languages
+ * that support it.
+ */
 
 {
-  var checkPropTypes$1 = checkPropTypes;
-  var lowPriorityWarning$1 = lowPriorityWarning_1;
-  var ReactDebugCurrentFrame$1 = ReactDebugCurrentFrame_1;
-  var warning$3 = require$$0;
-  var describeComponentFrame = describeComponentFrame$1;
-  var getComponentName = getComponentName_1;
-
   var currentlyValidatingElement = null;
 
+  var propTypesMisspellWarningShown = false;
+
   var getDisplayName = function (element) {
     if (element == null) {
       return '#empty';
@@ -3351,29 +3275,30 @@ var getComponentName_1 = getComponentName$1;
       return '#text';
     } else if (typeof element.type === 'string') {
       return element.type;
+    } else if (element.type === REACT_FRAGMENT_TYPE) {
+      return 'React.Fragment';
     } else {
       return element.type.displayName || element.type.name || 'Unknown';
     }
   };
 
-  var getStackAddendum$1 = function () {
+  var getStackAddendum = function () {
     var stack = '';
     if (currentlyValidatingElement) {
       var name = getDisplayName(currentlyValidatingElement);
       var owner = currentlyValidatingElement._owner;
       stack += describeComponentFrame(name, currentlyValidatingElement._source, owner && getComponentName(owner));
     }
-    stack += ReactDebugCurrentFrame$1.getStackAddendum() || '';
+    stack += ReactDebugCurrentFrame.getStackAddendum() || '';
     return stack;
   };
-}
 
-var ITERATOR_SYMBOL$1 = typeof Symbol === 'function' && Symbol.iterator;
-var FAUX_ITERATOR_SYMBOL$1 = '@@iterator'; // Before Symbol spec.
+  var VALID_FRAGMENT_PROPS = new Map([['children', true], ['key', true]]);
+}
 
 function getDeclarationErrorAddendum() {
-  if (ReactCurrentOwner_1.current) {
-    var name = getComponentName(ReactCurrentOwner_1.current);
+  if (ReactCurrentOwner.current) {
+    var name = getComponentName(ReactCurrentOwner.current);
     if (name) {
       return '\n\nCheck the render method of `' + name + '`.';
     }
@@ -3437,14 +3362,14 @@ function validateExplicitKey(element, parentType) {
   // property, it may be the creator of the child that's responsible for
   // assigning it a key.
   var childOwner = '';
-  if (element && element._owner && element._owner !== ReactCurrentOwner_1.current) {
+  if (element && element._owner && element._owner !== ReactCurrentOwner.current) {
     // Give the component that originally created this child.
     childOwner = ' It was passed a child from ' + getComponentName(element._owner) + '.';
   }
 
   currentlyValidatingElement = element;
   {
-    warning$3(false, 'Each child in an array or iterator should have a unique "key" prop.' + '%s%s See https://fb.me/react-warning-keys for more information.%s', currentComponentErrorInfo, childOwner, getStackAddendum$1());
+    warning(false, 'Each child in an array or iterator should have a unique "key" prop.' + '%s%s See https://fb.me/react-warning-keys for more information.%s', currentComponentErrorInfo, childOwner, getStackAddendum());
   }
   currentlyValidatingElement = null;
 }
@@ -3465,17 +3390,17 @@ function validateChildKeys(node, parentType) {
   if (Array.isArray(node)) {
     for (var i = 0; i < node.length; i++) {
       var child = node[i];
-      if (ReactElement_1.isValidElement(child)) {
+      if (isValidElement(child)) {
         validateExplicitKey(child, parentType);
       }
     }
-  } else if (ReactElement_1.isValidElement(node)) {
+  } else if (isValidElement(node)) {
     // This element was passed in a valid location.
     if (node._store) {
       node._store.validated = true;
     }
   } else if (node) {
-    var iteratorFn = ITERATOR_SYMBOL$1 && node[ITERATOR_SYMBOL$1] || node[FAUX_ITERATOR_SYMBOL$1];
+    var iteratorFn = getIteratorFn(node);
     if (typeof iteratorFn === 'function') {
       // Entry iterators used to provide implicit keys,
       // but now we print a separate warning for them later.
@@ -3483,7 +3408,7 @@ function validateChildKeys(node, parentType) {
         var iterator = iteratorFn.call(node);
         var step;
         while (!(step = iterator.next()).done) {
-          if (ReactElement_1.isValidElement(step.value)) {
+          if (isValidElement(step.value)) {
             validateExplicitKey(step.value, parentType);
           }
         }
@@ -3505,463 +3430,197 @@ function validatePropTypes(element) {
   }
   var name = componentClass.displayName || componentClass.name;
   var propTypes = componentClass.propTypes;
-
   if (propTypes) {
     currentlyValidatingElement = element;
-    checkPropTypes$1(propTypes, element.props, 'prop', name, getStackAddendum$1);
+    checkPropTypes(propTypes, element.props, 'prop', name, getStackAddendum);
     currentlyValidatingElement = null;
+  } else if (componentClass.PropTypes !== undefined && !propTypesMisspellWarningShown) {
+    propTypesMisspellWarningShown = true;
+    warning(false, 'Component %s declared `PropTypes` instead of `propTypes`. Did you misspell the property assignment?', name || 'Unknown');
   }
   if (typeof componentClass.getDefaultProps === 'function') {
-    warning$3(componentClass.getDefaultProps.isReactClassApproved, 'getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.');
+    warning(componentClass.getDefaultProps.isReactClassApproved, 'getDefaultProps is only used on classic React.createClass ' + 'definitions. Use a static property named `defaultProps` instead.');
   }
 }
 
-var ReactElementValidator$1 = {
-  createElement: function (type, props, children) {
-    var validType = typeof type === 'string' || typeof type === 'function';
-    // We warn in this case but don't throw. We expect the element creation to
-    // succeed and there will likely be errors in render.
-    if (!validType) {
-      var info = '';
-      if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
-        info += ' You likely forgot to export your component from the file ' + "it's defined in.";
-      }
+/**
+ * Given a fragment, validate that it can only be provided with fragment props
+ * @param {ReactElement} fragment
+ */
+function validateFragmentProps(fragment) {
+  currentlyValidatingElement = fragment;
 
-      var sourceInfo = getSourceInfoErrorAddendum(props);
-      if (sourceInfo) {
-        info += sourceInfo;
-      } else {
-        info += getDeclarationErrorAddendum();
-      }
+  var _iteratorNormalCompletion = true;
+  var _didIteratorError = false;
+  var _iteratorError = undefined;
 
-      info += ReactDebugCurrentFrame$1.getStackAddendum() || '';
+  try {
+    for (var _iterator = Object.keys(fragment.props)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+      var key = _step.value;
 
-      warning$3(false, 'React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', type == null ? type : typeof type, info);
+      if (!VALID_FRAGMENT_PROPS.has(key)) {
+        warning(false, 'Invalid prop `%s` supplied to `React.Fragment`. ' + 'React.Fragment can only have `key` and `children` props.%s', key, getStackAddendum());
+        break;
+      }
+    }
+  } catch (err) {
+    _didIteratorError = true;
+    _iteratorError = err;
+  } finally {
+    try {
+      if (!_iteratorNormalCompletion && _iterator['return']) {
+        _iterator['return']();
+      }
+    } finally {
+      if (_didIteratorError) {
+        throw _iteratorError;
+      }
     }
+  }
 
-    var element = ReactElement_1.createElement.apply(this, arguments);
+  if (fragment.ref !== null) {
+    warning(false, 'Invalid attribute `ref` supplied to `React.Fragment`.%s', getStackAddendum());
+  }
 
-    // The result can be nullish if a mock or a custom function is used.
-    // TODO: Drop this when these are no longer allowed as the type argument.
-    if (element == null) {
-      return element;
-    }
+  currentlyValidatingElement = null;
+}
 
-    // Skip key warning if the type isn't valid since our key validation logic
-    // doesn't expect a non-string/function type and can throw confusing errors.
-    // We don't want exception behavior to differ between dev and prod.
-    // (Rendering will throw with a helpful message and as soon as the type is
-    // fixed, the key warnings will appear.)
-    if (validType) {
-      for (var i = 2; i < arguments.length; i++) {
-        validateChildKeys(arguments[i], type);
-      }
+function createElementWithValidation(type, props, children) {
+  var validType = typeof type === 'string' || typeof type === 'function' || typeof type === 'symbol' || typeof type === 'number';
+  // We warn in this case but don't throw. We expect the element creation to
+  // succeed and there will likely be errors in render.
+  if (!validType) {
+    var info = '';
+    if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
+      info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports.";
     }
 
-    validatePropTypes(element);
+    var sourceInfo = getSourceInfoErrorAddendum(props);
+    if (sourceInfo) {
+      info += sourceInfo;
+    } else {
+      info += getDeclarationErrorAddendum();
+    }
 
-    return element;
-  },
+    info += getStackAddendum() || '';
 
-  createFactory: function (type) {
-    var validatedFactory = ReactElementValidator$1.createElement.bind(null, type);
-    // Legacy hook TODO: Warn if this is accessed
-    validatedFactory.type = type;
+    warning(false, 'React.createElement: type is invalid -- expected a string (for ' + 'built-in components) or a class/function (for composite ' + 'components) but got: %s.%s', type == null ? type : typeof type, info);
+  }
 
-    {
-      Object.defineProperty(validatedFactory, 'type', {
-        enumerable: false,
-        get: function () {
-          lowPriorityWarning$1(false, 'Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.');
-          Object.defineProperty(this, 'type', {
-            value: type
-          });
-          return type;
-        }
-      });
-    }
+  var element = createElement.apply(this, arguments);
 
-    return validatedFactory;
-  },
+  // The result can be nullish if a mock or a custom function is used.
+  // TODO: Drop this when these are no longer allowed as the type argument.
+  if (element == null) {
+    return element;
+  }
 
-  cloneElement: function (element, props, children) {
-    var newElement = ReactElement_1.cloneElement.apply(this, arguments);
+  // Skip key warning if the type isn't valid since our key validation logic
+  // doesn't expect a non-string/function type and can throw confusing errors.
+  // We don't want exception behavior to differ between dev and prod.
+  // (Rendering will throw with a helpful message and as soon as the type is
+  // fixed, the key warnings will appear.)
+  if (validType) {
     for (var i = 2; i < arguments.length; i++) {
-      validateChildKeys(arguments[i], newElement.type);
+      validateChildKeys(arguments[i], type);
     }
-    validatePropTypes(newElement);
-    return newElement;
   }
-};
-
-var ReactElementValidator_1 = ReactElementValidator$1;
 
-{
-  var warning$4 = require$$0;
-}
-
-function isNative(fn) {
-  // Based on isNative() from Lodash
-  var funcToString = Function.prototype.toString;
-  var reIsNative = RegExp('^' + funcToString
-  // Take an example native function source for comparison
-  .call(Object.prototype.hasOwnProperty)
-  // Strip regex characters so we can use it for regex
-  .replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
-  // Remove hasOwnProperty from the template to make it generic
-  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$');
-  try {
-    var source = funcToString.call(fn);
-    return reIsNative.test(source);
-  } catch (err) {
-    return false;
+  if (typeof type === 'symbol' && type === REACT_FRAGMENT_TYPE) {
+    validateFragmentProps(element);
+  } else {
+    validatePropTypes(element);
   }
-}
 
-var canUseCollections =
-// Array.from
-typeof Array.from === 'function' &&
-// Map
-typeof Map === 'function' && isNative(Map) &&
-// Map.prototype.keys
-Map.prototype != null && typeof Map.prototype.keys === 'function' && isNative(Map.prototype.keys) &&
-// Set
-typeof Set === 'function' && isNative(Set) &&
-// Set.prototype.keys
-Set.prototype != null && typeof Set.prototype.keys === 'function' && isNative(Set.prototype.keys);
-
-var setItem;
-var getItem;
-var removeItem;
-var getItemIDs;
-var addRoot;
-var removeRoot;
-var getRootIDs;
-
-if (canUseCollections) {
-  var itemMap = new Map();
-  var rootIDSet = new Set();
-
-  setItem = function (id, item) {
-    itemMap.set(id, item);
-  };
-  getItem = function (id) {
-    return itemMap.get(id);
-  };
-  removeItem = function (id) {
-    itemMap['delete'](id);
-  };
-  getItemIDs = function () {
-    return Array.from(itemMap.keys());
-  };
+  return element;
+}
 
-  addRoot = function (id) {
-    rootIDSet.add(id);
-  };
-  removeRoot = function (id) {
-    rootIDSet['delete'](id);
-  };
-  getRootIDs = function () {
-    return Array.from(rootIDSet.keys());
-  };
-} else {
-  var itemByKey = {};
-  var rootByKey = {};
+function createFactoryWithValidation(type) {
+  var validatedFactory = createElementWithValidation.bind(null, type);
+  // Legacy hook TODO: Warn if this is accessed
+  validatedFactory.type = type;
 
-  // Use non-numeric keys to prevent V8 performance issues:
-  // https://github.com/facebook/react/pull/7232
-  var getKeyFromID = function (id) {
-    return '.' + id;
-  };
-  var getIDFromKey = function (key) {
-    return parseInt(key.substr(1), 10);
-  };
+  {
+    Object.defineProperty(validatedFactory, 'type', {
+      enumerable: false,
+      get: function () {
+        lowPriorityWarning$1(false, 'Factory.type is deprecated. Access the class directly ' + 'before passing it to createFactory.');
+        Object.defineProperty(this, 'type', {
+          value: type
+        });
+        return type;
+      }
+    });
+  }
 
-  setItem = function (id, item) {
-    var key = getKeyFromID(id);
-    itemByKey[key] = item;
-  };
-  getItem = function (id) {
-    var key = getKeyFromID(id);
-    return itemByKey[key];
-  };
-  removeItem = function (id) {
-    var key = getKeyFromID(id);
-    delete itemByKey[key];
-  };
-  getItemIDs = function () {
-    return Object.keys(itemByKey).map(getIDFromKey);
-  };
+  return validatedFactory;
+}
 
-  addRoot = function (id) {
-    var key = getKeyFromID(id);
-    rootByKey[key] = true;
-  };
-  removeRoot = function (id) {
-    var key = getKeyFromID(id);
-    delete rootByKey[key];
-  };
-  getRootIDs = function () {
-    return Object.keys(rootByKey).map(getIDFromKey);
-  };
+function cloneElementWithValidation(element, props, children) {
+  var newElement = cloneElement.apply(this, arguments);
+  for (var i = 2; i < arguments.length; i++) {
+    validateChildKeys(arguments[i], newElement.type);
+  }
+  validatePropTypes(newElement);
+  return newElement;
 }
 
-var unmountedIDs = [];
+var React = {
+  Children: {
+    map: mapChildren,
+    forEach: forEachChildren,
+    count: countChildren,
+    toArray: toArray,
+    only: onlyChild
+  },
 
-function purgeDeep(id) {
-  var item = getItem(id);
-  if (item) {
-    var childIDs = item.childIDs;
+  Component: Component,
+  PureComponent: PureComponent,
+  unstable_AsyncComponent: AsyncComponent,
 
-    removeItem(id);
-    childIDs.forEach(purgeDeep);
-  }
-}
+  Fragment: REACT_FRAGMENT_TYPE,
 
-function getDisplayName$1(element) {
-  if (element == null) {
-    return '#empty';
-  } else if (typeof element === 'string' || typeof element === 'number') {
-    return '#text';
-  } else if (typeof element.type === 'string') {
-    return element.type;
-  } else {
-    return element.type.displayName || element.type.name || 'Unknown';
+  createElement: createElementWithValidation,
+  cloneElement: cloneElementWithValidation,
+  createFactory: createFactoryWithValidation,
+  isValidElement: isValidElement,
+
+  version: ReactVersion,
+
+  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
+    ReactCurrentOwner: ReactCurrentOwner,
+    // Used by renderers to avoid bundling object-assign twice in UMD bundles:
+    assign: _assign
   }
+};
+
+{
+  _assign(React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, {
+    // These should not be included in production.
+    ReactDebugCurrentFrame: ReactDebugCurrentFrame,
+    // Shim for React DOM 16.0.0 which still destructured (but not used) this.
+    // TODO: remove in React 17.0.
+    ReactComponentTreeHook: {}
+  });
 }
 
-function describeID(id) {
-  var name = ReactComponentTreeHook.getDisplayName(id);
-  var element = ReactComponentTreeHook.getElement(id);
-  var ownerID = ReactComponentTreeHook.getOwnerID(id);
-  var ownerName = void 0;
 
-  if (ownerID) {
-    ownerName = ReactComponentTreeHook.getDisplayName(ownerID);
-  }
-  warning$4(element, 'ReactComponentTreeHook: Missing React element for debugID %s when ' + 'building stack', id);
-  return describeComponentFrame$1(name || '', element && element._source, ownerName || '');
+
+var React$2 = Object.freeze({
+	default: React
+});
+
+var React$3 = ( React$2 && React ) || React$2;
+
+// TODO: decide on the top-level export form.
+// This is hacky but makes it work with both Rollup and Jest.
+var react = React$3['default'] ? React$3['default'] : React$3;
+
+module.exports = react;
+  })();
 }
 
-var ReactComponentTreeHook = {
-  onSetChildren: function (id, nextChildIDs) {
-    var item = getItem(id);
-    !item ? invariant(false, 'Item must have been set') : void 0;
-    item.childIDs = nextChildIDs;
-
-    for (var i = 0; i < nextChildIDs.length; i++) {
-      var nextChildID = nextChildIDs[i];
-      var nextChild = getItem(nextChildID);
-      !nextChild ? invariant(false, 'Expected hook events to fire for the child before its parent includes it in onSetChildren().') : void 0;
-      !(nextChild.childIDs != null || typeof nextChild.element !== 'object' || nextChild.element == null) ? invariant(false, 'Expected onSetChildren() to fire for a container child before its parent includes it in onSetChildren().') : void 0;
-      !nextChild.isMounted ? invariant(false, 'Expected onMountComponent() to fire for the child before its parent includes it in onSetChildren().') : void 0;
-      if (nextChild.parentID == null) {
-        nextChild.parentID = id;
-        // TODO: This shouldn't be necessary but mounting a new root during in
-        // componentWillMount currently causes not-yet-mounted components to
-        // be purged from our tree data so their parent id is missing.
-      }
-      !(nextChild.parentID === id) ? invariant(false, 'Expected onBeforeMountComponent() parent and onSetChildren() to be consistent (%s has parents %s and %s).', nextChildID, nextChild.parentID, id) : void 0;
-    }
-  },
-  onBeforeMountComponent: function (id, element, parentID) {
-    var item = {
-      element: element,
-      parentID: parentID,
-      text: null,
-      childIDs: [],
-      isMounted: false,
-      updateCount: 0
-    };
-    setItem(id, item);
-  },
-  onBeforeUpdateComponent: function (id, element) {
-    var item = getItem(id);
-    if (!item || !item.isMounted) {
-      // We may end up here as a result of setState() in componentWillUnmount().
-      // In this case, ignore the element.
-      return;
-    }
-    item.element = element;
-  },
-  onMountComponent: function (id) {
-    var item = getItem(id);
-    !item ? invariant(false, 'Item must have been set') : void 0;
-    item.isMounted = true;
-    var isRoot = item.parentID === 0;
-    if (isRoot) {
-      addRoot(id);
-    }
-  },
-  onUpdateComponent: function (id) {
-    var item = getItem(id);
-    if (!item || !item.isMounted) {
-      // We may end up here as a result of setState() in componentWillUnmount().
-      // In this case, ignore the element.
-      return;
-    }
-    item.updateCount++;
-  },
-  onUnmountComponent: function (id) {
-    var item = getItem(id);
-    if (item) {
-      // We need to check if it exists.
-      // `item` might not exist if it is inside an error boundary, and a sibling
-      // error boundary child threw while mounting. Then this instance never
-      // got a chance to mount, but it still gets an unmounting event during
-      // the error boundary cleanup.
-      item.isMounted = false;
-      var isRoot = item.parentID === 0;
-      if (isRoot) {
-        removeRoot(id);
-      }
-    }
-    unmountedIDs.push(id);
-  },
-  purgeUnmountedComponents: function () {
-    if (ReactComponentTreeHook._preventPurging) {
-      // Should only be used for testing.
-      return;
-    }
-
-    for (var i = 0; i < unmountedIDs.length; i++) {
-      var id = unmountedIDs[i];
-      purgeDeep(id);
-    }
-    unmountedIDs.length = 0;
-  },
-  isMounted: function (id) {
-    var item = getItem(id);
-    return item ? item.isMounted : false;
-  },
-  getCurrentStackAddendum: function () {
-    var info = '';
-    var currentOwner = ReactCurrentOwner_1.current;
-    if (currentOwner) {
-      !(typeof currentOwner.tag !== 'number') ? invariant(false, 'Fiber owners should not show up in Stack stack traces.') : void 0;
-      if (typeof currentOwner._debugID === 'number') {
-        info += ReactComponentTreeHook.getStackAddendumByID(currentOwner._debugID);
-      }
-    }
-    return info;
-  },
-  getStackAddendumByID: function (id) {
-    var info = '';
-    while (id) {
-      info += describeID(id);
-      id = ReactComponentTreeHook.getParentID(id);
-    }
-    return info;
-  },
-  getChildIDs: function (id) {
-    var item = getItem(id);
-    return item ? item.childIDs : [];
-  },
-  getDisplayName: function (id) {
-    var element = ReactComponentTreeHook.getElement(id);
-    if (!element) {
-      return null;
-    }
-    return getDisplayName$1(element);
-  },
-  getElement: function (id) {
-    var item = getItem(id);
-    return item ? item.element : null;
-  },
-  getOwnerID: function (id) {
-    var element = ReactComponentTreeHook.getElement(id);
-    if (!element || !element._owner) {
-      return null;
-    }
-    return element._owner._debugID;
-  },
-  getParentID: function (id) {
-    var item = getItem(id);
-    return item ? item.parentID : null;
-  },
-  getSource: function (id) {
-    var item = getItem(id);
-    var element = item ? item.element : null;
-    var source = element != null ? element._source : null;
-    return source;
-  },
-  getText: function (id) {
-    var element = ReactComponentTreeHook.getElement(id);
-    if (typeof element === 'string') {
-      return element;
-    } else if (typeof element === 'number') {
-      return '' + element;
-    } else {
-      return null;
-    }
-  },
-  getUpdateCount: function (id) {
-    var item = getItem(id);
-    return item ? item.updateCount : 0;
-  },
-
-
-  getRootIDs: getRootIDs,
-  getRegisteredIDs: getItemIDs
-};
-
-var ReactComponentTreeHook_1 = ReactComponentTreeHook;
-
-var createElement = ReactElement_1.createElement;
-var createFactory = ReactElement_1.createFactory;
-var cloneElement = ReactElement_1.cloneElement;
-
-{
-  var ReactElementValidator = ReactElementValidator_1;
-  createElement = ReactElementValidator.createElement;
-  createFactory = ReactElementValidator.createFactory;
-  cloneElement = ReactElementValidator.cloneElement;
-}
-
-var React = {
-  Children: {
-    map: ReactChildren_1.map,
-    forEach: ReactChildren_1.forEach,
-    count: ReactChildren_1.count,
-    toArray: ReactChildren_1.toArray,
-    only: onlyChild_1
-  },
-
-  Component: ReactBaseClasses.Component,
-  PureComponent: ReactBaseClasses.PureComponent,
-  unstable_AsyncComponent: ReactBaseClasses.AsyncComponent,
-
-  createElement: createElement,
-  cloneElement: cloneElement,
-  isValidElement: ReactElement_1.isValidElement,
-
-  createFactory: createFactory,
-
-  version: ReactVersion,
-
-  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
-    ReactCurrentOwner: ReactCurrentOwner_1,
-    // Used by renderers to avoid bundling object-assign twice in UMD bundles:
-    assign: objectAssign$1
-  }
-};
-
-{
-  objectAssign$1(React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED, {
-    // These should not be included in production.
-    ReactComponentTreeHook: ReactComponentTreeHook_1,
-    ReactDebugCurrentFrame: ReactDebugCurrentFrame_1
-  });
-}
-
-var ReactEntry = React;
-
-module.exports = ReactEntry;
-
-})();
-}
-
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
 /* 44 */
@@ -4014,262 +3673,235 @@ if (process.env.NODE_ENV === 'production') {
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
-/*
- React v16.0.0
- react-dom.production.min.js
-
- Copyright (c) 2013-present, Facebook, Inc.
+/** @license React v16.2.0
+ * react-dom.production.min.js
+ *
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
 
- This source code is licensed under the MIT license found in the
- LICENSE file in the root directory of this source tree.
+/*
  Modernizr 3.0.0pre (Custom Build) | MIT
 */
-var aa=__webpack_require__(0);__webpack_require__(4);var l=__webpack_require__(19),n=__webpack_require__(7),ba=__webpack_require__(23),ca=__webpack_require__(3),da=__webpack_require__(8),ea=__webpack_require__(24),fa=__webpack_require__(25),ha=__webpack_require__(26),ia=__webpack_require__(27);
-function w(a){for(var b=arguments.length-1,c="Minified React error #"+a+"; visit http://facebook.github.io/react/docs/error-decoder.html?invariant\x3d"+a,d=0;d<b;d++)c+="\x26args[]\x3d"+encodeURIComponent(arguments[d+1]);b=Error(c+" for the full message or use the non-minified dev environment for full errors and additional helpful warnings.");b.name="Invariant Violation";b.framesToPop=1;throw b;}aa?void 0:w("227");
-function ja(a){switch(a){case "svg":return"http://www.w3.org/2000/svg";case "math":return"http://www.w3.org/1998/Math/MathML";default:return"http://www.w3.org/1999/xhtml"}}
-var ka={Namespaces:{html:"http://www.w3.org/1999/xhtml",mathml:"http://www.w3.org/1998/Math/MathML",svg:"http://www.w3.org/2000/svg"},getIntrinsicNamespace:ja,getChildNamespace:function(a,b){return null==a||"http://www.w3.org/1999/xhtml"===a?ja(b):"http://www.w3.org/2000/svg"===a&&"foreignObject"===b?"http://www.w3.org/1999/xhtml":a}},la=null,oa={};
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+b){8===a.nodeType?a.parentNode.insertBefore(b,a):a.appendChild(b)},insertBefore:function(a,b,c){a.insertBefore(b,c)},insertInContainerBefore:function(a,b,c){8===a.nodeType?a.parentNode.insertBefore(b,c):a.insertBefore(b,c)},removeChild:function(a,b){a.removeChild(b)},removeChildFromContainer:function(a,b){8===a.nodeType?a.parentNode.removeChild(b):a.removeChild(b)}},hydration:{canHydrateInstance:function(a,b){return 1!==a.nodeType||b.toLowerCase()!==a.nodeName.toLowerCase()?null:a},canHydrateTextInstance:function(a,
+b){return""===b||3!==a.nodeType?null:a},getNextHydratableSibling:function(a){for(a=a.nextSibling;a&&1!==a.nodeType&&3!==a.nodeType;)a=a.nextSibling;return a},getFirstHydratableChild:function(a){for(a=a.firstChild;a&&1!==a.nodeType&&3!==a.nodeType;)a=a.nextSibling;return a},hydrateInstance:function(a,b,c,d,e,f){a[Q]=f;a[ob]=c;return ug(a,b,c,e,d)},hydrateTextInstance:function(a,b,c){a[Q]=c;return vg(a,b)},didNotMatchHydratedContainerTextInstance:function(){},didNotMatchHydratedTextInstance:function(){},
+didNotHydrateContainerInstance:function(){},didNotHydrateInstance:function(){},didNotFindHydratableContainerInstance:function(){},didNotFindHydratableContainerTextInstance:function(){},didNotFindHydratableInstance:function(){},didNotFindHydratableTextInstance:function(){}},scheduleDeferredCallback:sf,cancelDeferredCallback:tf,useSyncScheduling:!0});rc=Z.batchedUpdates;
+function Pg(a,b,c,d,e){Ng(c)?void 0:E("200");var f=c._reactRootContainer;if(f)Z.updateContainer(b,f,a,e);else{d=d||Og(c);if(!d)for(f=void 0;f=c.lastChild;)c.removeChild(f);var g=Z.createContainer(c,d);f=c._reactRootContainer=g;Z.unbatchedUpdates(function(){Z.updateContainer(b,g,a,e)})}return Z.getPublicRootInstance(f)}function Qg(a,b){var c=2<arguments.length&&void 0!==arguments[2]?arguments[2]:null;Ng(b)?void 0:E("200");return pf(a,b,null,c)}
+function Rg(a,b){this._reactRootContainer=Z.createContainer(a,b)}Rg.prototype.render=function(a,b){Z.updateContainer(a,this._reactRootContainer,null,b)};Rg.prototype.unmount=function(a){Z.updateContainer(null,this._reactRootContainer,null,a)};
+var Sg={createPortal:Qg,findDOMNode:function(a){if(null==a)return null;if(1===a.nodeType)return a;var b=a._reactInternalFiber;if(b)return Z.findHostInstance(b);"function"===typeof a.render?E("188"):E("213",Object.keys(a))},hydrate:function(a,b,c){return Pg(null,a,b,!0,c)},render:function(a,b,c){return Pg(null,a,b,!1,c)},unstable_renderSubtreeIntoContainer:function(a,b,c,d){null==a||void 0===a._reactInternalFiber?E("38"):void 0;return Pg(a,b,c,!1,d)},unmountComponentAtNode:function(a){Ng(a)?void 0:
+E("40");return a._reactRootContainer?(Z.unbatchedUpdates(function(){Pg(null,null,a,!1,function(){a._reactRootContainer=null})}),!0):!1},unstable_createPortal:Qg,unstable_batchedUpdates:tc,unstable_deferredUpdates:Z.deferredUpdates,flushSync:Z.flushSync,__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED:{EventPluginHub:mb,EventPluginRegistry:Va,EventPropagators:Cb,ReactControlledComponent:qc,ReactDOMComponentTree:sb,ReactDOMEventListener:xd}};
+Z.injectIntoDevTools({findFiberByHostInstance:pb,bundleType:0,version:"16.2.0",rendererPackageName:"react-dom"});var Tg=Object.freeze({default:Sg}),Ug=Tg&&Sg||Tg;module.exports=Ug["default"]?Ug["default"]:Ug;
 
 
 /***/ }),
@@ -4333,7 +3965,7 @@ module.exports = isNode;
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
-/* WEBPACK VAR INJECTION */(function(process) {/** @license React v16.0.0
+/* WEBPACK VAR INJECTION */(function(process) {/** @license React v16.2.0
  * react-dom.development.js
  *
  * Copyright (c) 2013-present, Facebook, Inc.
@@ -4344,7156 +3976,6032 @@ module.exports = isNode;
 
 
 
-if (process.env.NODE_ENV !== "production") {
-(function() {
 
+
+if (process.env.NODE_ENV !== "production") {
+  (function() {
 'use strict';
 
-var react = __webpack_require__(0);
-var invariant = __webpack_require__(4);
-var ExecutionEnvironment = __webpack_require__(19);
-var _assign = __webpack_require__(7);
+var React = __webpack_require__(0);
+var invariant = __webpack_require__(7);
+var warning = __webpack_require__(9);
+var ExecutionEnvironment = __webpack_require__(22);
+var _assign = __webpack_require__(6);
+var emptyFunction = __webpack_require__(3);
 var EventListener = __webpack_require__(23);
-var require$$0 = __webpack_require__(9);
+var getActiveElement = __webpack_require__(24);
+var shallowEqual = __webpack_require__(25);
+var containsNode = __webpack_require__(26);
+var focusNode = __webpack_require__(27);
+var emptyObject = __webpack_require__(8);
+var checkPropTypes = __webpack_require__(16);
 var hyphenateStyleName = __webpack_require__(49);
-var emptyFunction = __webpack_require__(3);
 var camelizeStyleName = __webpack_require__(51);
-var performanceNow = __webpack_require__(53);
-var propTypes = __webpack_require__(10);
-var emptyObject = __webpack_require__(8);
-var checkPropTypes = __webpack_require__(17);
-var shallowEqual = __webpack_require__(24);
-var containsNode = __webpack_require__(25);
-var focusNode = __webpack_require__(26);
-var getActiveElement = __webpack_require__(27);
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule reactProdInvariant
- * 
+ * WARNING: DO NOT manually require this module.
+ * This is a replacement for `invariant(...)` used by the error code system
+ * and will _only_ be required by the corresponding babel pass.
+ * It always throws.
  */
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule checkReact
- * 
- */
+!React ? invariant(false, 'ReactDOM was loaded before React. Make sure you load the React package before loading ReactDOM.') : void 0;
+
+// These attributes should be all lowercase to allow for
+// case insensitive checks
+var RESERVED_PROPS = {
+  children: true,
+  dangerouslySetInnerHTML: true,
+  defaultValue: true,
+  defaultChecked: true,
+  innerHTML: true,
+  suppressContentEditableWarning: true,
+  suppressHydrationWarning: true,
+  style: true
+};
+
+function checkMask(value, bitmask) {
+  return (value & bitmask) === bitmask;
+}
+
+var DOMPropertyInjection = {
+  /**
+   * Mapping from normalized, camelcased property names to a configuration that
+   * specifies how the associated DOM property should be accessed or rendered.
+   */
+  MUST_USE_PROPERTY: 0x1,
+  HAS_BOOLEAN_VALUE: 0x4,
+  HAS_NUMERIC_VALUE: 0x8,
+  HAS_POSITIVE_NUMERIC_VALUE: 0x10 | 0x8,
+  HAS_OVERLOADED_BOOLEAN_VALUE: 0x20,
+  HAS_STRING_BOOLEAN_VALUE: 0x40,
+
+  /**
+   * Inject some specialized knowledge about the DOM. This takes a config object
+   * with the following properties:
+   *
+   * Properties: object mapping DOM property name to one of the
+   * DOMPropertyInjection constants or null. If your attribute isn't in here,
+   * it won't get written to the DOM.
+   *
+   * DOMAttributeNames: object mapping React attribute name to the DOM
+   * attribute name. Attribute names not specified use the **lowercase**
+   * normalized name.
+   *
+   * DOMAttributeNamespaces: object mapping React attribute name to the DOM
+   * attribute namespace URL. (Attribute names not specified use no namespace.)
+   *
+   * DOMPropertyNames: similar to DOMAttributeNames but for DOM properties.
+   * Property names not specified use the normalized name.
+   *
+   * DOMMutationMethods: Properties that require special mutation methods. If
+   * `value` is undefined, the mutation method should unset the property.
+   *
+   * @param {object} domPropertyConfig the config as described above.
+   */
+  injectDOMPropertyConfig: function (domPropertyConfig) {
+    var Injection = DOMPropertyInjection;
+    var Properties = domPropertyConfig.Properties || {};
+    var DOMAttributeNamespaces = domPropertyConfig.DOMAttributeNamespaces || {};
+    var DOMAttributeNames = domPropertyConfig.DOMAttributeNames || {};
+    var DOMMutationMethods = domPropertyConfig.DOMMutationMethods || {};
 
+    for (var propName in Properties) {
+      !!properties.hasOwnProperty(propName) ? invariant(false, "injectDOMPropertyConfig(...): You're trying to inject DOM property '%s' which has already been injected. You may be accidentally injecting the same DOM property config twice, or you may be injecting two configs that have conflicting property names.", propName) : void 0;
 
+      var lowerCased = propName.toLowerCase();
+      var propConfig = Properties[propName];
 
+      var propertyInfo = {
+        attributeName: lowerCased,
+        attributeNamespace: null,
+        propertyName: propName,
+        mutationMethod: null,
 
-!react ? invariant(false, 'ReactDOM was loaded before React. Make sure you load the React package before loading ReactDOM.') : void 0;
+        mustUseProperty: checkMask(propConfig, Injection.MUST_USE_PROPERTY),
+        hasBooleanValue: checkMask(propConfig, Injection.HAS_BOOLEAN_VALUE),
+        hasNumericValue: checkMask(propConfig, Injection.HAS_NUMERIC_VALUE),
+        hasPositiveNumericValue: checkMask(propConfig, Injection.HAS_POSITIVE_NUMERIC_VALUE),
+        hasOverloadedBooleanValue: checkMask(propConfig, Injection.HAS_OVERLOADED_BOOLEAN_VALUE),
+        hasStringBooleanValue: checkMask(propConfig, Injection.HAS_STRING_BOOLEAN_VALUE)
+      };
+      !(propertyInfo.hasBooleanValue + propertyInfo.hasNumericValue + propertyInfo.hasOverloadedBooleanValue <= 1) ? invariant(false, "DOMProperty: Value can be one of boolean, overloaded boolean, or numeric value, but not a combination: %s", propName) : void 0;
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule DOMNamespaces
- */
+      if (DOMAttributeNames.hasOwnProperty(propName)) {
+        var attributeName = DOMAttributeNames[propName];
 
-var HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml';
-var MATH_NAMESPACE = 'http://www.w3.org/1998/Math/MathML';
-var SVG_NAMESPACE = 'http://www.w3.org/2000/svg';
+        propertyInfo.attributeName = attributeName;
+      }
 
-var Namespaces = {
-  html: HTML_NAMESPACE,
-  mathml: MATH_NAMESPACE,
-  svg: SVG_NAMESPACE
+      if (DOMAttributeNamespaces.hasOwnProperty(propName)) {
+        propertyInfo.attributeNamespace = DOMAttributeNamespaces[propName];
+      }
+
+      if (DOMMutationMethods.hasOwnProperty(propName)) {
+        propertyInfo.mutationMethod = DOMMutationMethods[propName];
+      }
+
+      // Downcase references to whitelist properties to check for membership
+      // without case-sensitivity. This allows the whitelist to pick up
+      // `allowfullscreen`, which should be written using the property configuration
+      // for `allowFullscreen`
+      properties[propName] = propertyInfo;
+    }
+  }
 };
 
-// Assumes there is no parent namespace.
-function getIntrinsicNamespace(type) {
-  switch (type) {
-    case 'svg':
-      return SVG_NAMESPACE;
-    case 'math':
-      return MATH_NAMESPACE;
+/* eslint-disable max-len */
+var ATTRIBUTE_NAME_START_CHAR = ":A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD";
+/* eslint-enable max-len */
+var ATTRIBUTE_NAME_CHAR = ATTRIBUTE_NAME_START_CHAR + "\\-.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040";
+
+
+var ROOT_ATTRIBUTE_NAME = 'data-reactroot';
+
+/**
+ * Map from property "standard name" to an object with info about how to set
+ * the property in the DOM. Each object contains:
+ *
+ * attributeName:
+ *   Used when rendering markup or with `*Attribute()`.
+ * attributeNamespace
+ * propertyName:
+ *   Used on DOM node instances. (This includes properties that mutate due to
+ *   external factors.)
+ * mutationMethod:
+ *   If non-null, used instead of the property or `setAttribute()` after
+ *   initial render.
+ * mustUseProperty:
+ *   Whether the property must be accessed and mutated as an object property.
+ * hasBooleanValue:
+ *   Whether the property should be removed when set to a falsey value.
+ * hasNumericValue:
+ *   Whether the property must be numeric or parse as a numeric and should be
+ *   removed when set to a falsey value.
+ * hasPositiveNumericValue:
+ *   Whether the property must be positive numeric or parse as a positive
+ *   numeric and should be removed when set to a falsey value.
+ * hasOverloadedBooleanValue:
+ *   Whether the property can be used as a flag as well as with a value.
+ *   Removed when strictly equal to false; present without a value when
+ *   strictly equal to true; present with a value otherwise.
+ */
+var properties = {};
+
+/**
+ * Checks whether a property name is a writeable attribute.
+ * @method
+ */
+function shouldSetAttribute(name, value) {
+  if (isReservedProp(name)) {
+    return false;
+  }
+  if (name.length > 2 && (name[0] === 'o' || name[0] === 'O') && (name[1] === 'n' || name[1] === 'N')) {
+    return false;
+  }
+  if (value === null) {
+    return true;
+  }
+  switch (typeof value) {
+    case 'boolean':
+      return shouldAttributeAcceptBooleanValue(name);
+    case 'undefined':
+    case 'number':
+    case 'string':
+    case 'object':
+      return true;
     default:
-      return HTML_NAMESPACE;
+      // function, symbol
+      return false;
   }
 }
 
-function getChildNamespace$1(parentNamespace, type) {
-  if (parentNamespace == null || parentNamespace === HTML_NAMESPACE) {
-    // No (or default) parent namespace: potential entry point.
-    return getIntrinsicNamespace(type);
+function getPropertyInfo(name) {
+  return properties.hasOwnProperty(name) ? properties[name] : null;
+}
+
+function shouldAttributeAcceptBooleanValue(name) {
+  if (isReservedProp(name)) {
+    return true;
   }
-  if (parentNamespace === SVG_NAMESPACE && type === 'foreignObject') {
-    // We're leaving SVG.
-    return HTML_NAMESPACE;
+  var propertyInfo = getPropertyInfo(name);
+  if (propertyInfo) {
+    return propertyInfo.hasBooleanValue || propertyInfo.hasStringBooleanValue || propertyInfo.hasOverloadedBooleanValue;
   }
-  // By default, pass namespace below.
-  return parentNamespace;
+  var prefix = name.toLowerCase().slice(0, 5);
+  return prefix === 'data-' || prefix === 'aria-';
 }
 
-var Namespaces_1 = Namespaces;
-var getIntrinsicNamespace_1 = getIntrinsicNamespace;
-var getChildNamespace_1 = getChildNamespace$1;
-
-var DOMNamespaces = {
-	Namespaces: Namespaces_1,
-	getIntrinsicNamespace: getIntrinsicNamespace_1,
-	getChildNamespace: getChildNamespace_1
-};
-
-/**
- * Injectable ordering of event plugins.
- */
-var eventPluginOrder = null;
-
-/**
- * Injectable mapping from names to event plugin modules.
- */
-var namesToPlugins = {};
-
 /**
- * Recomputes the plugin list using the injected plugins and plugin ordering.
+ * Checks to see if a property name is within the list of properties
+ * reserved for internal React operations. These properties should
+ * not be set on an HTML element.
  *
  * @private
+ * @param {string} name
+ * @return {boolean} If the name is within reserved props
  */
-function recomputePluginOrdering() {
-  if (!eventPluginOrder) {
-    // Wait until an `eventPluginOrder` is injected.
-    return;
-  }
-  for (var pluginName in namesToPlugins) {
-    var pluginModule = namesToPlugins[pluginName];
-    var pluginIndex = eventPluginOrder.indexOf(pluginName);
-    !(pluginIndex > -1) ? invariant(false, 'EventPluginRegistry: Cannot inject event plugins that do not exist in the plugin ordering, `%s`.', pluginName) : void 0;
-    if (EventPluginRegistry.plugins[pluginIndex]) {
-      continue;
-    }
-    !pluginModule.extractEvents ? invariant(false, 'EventPluginRegistry: Event plugins must implement an `extractEvents` method, but `%s` does not.', pluginName) : void 0;
-    EventPluginRegistry.plugins[pluginIndex] = pluginModule;
-    var publishedEvents = pluginModule.eventTypes;
-    for (var eventName in publishedEvents) {
-      !publishEventForPlugin(publishedEvents[eventName], pluginModule, eventName) ? invariant(false, 'EventPluginRegistry: Failed to publish event `%s` for plugin `%s`.', eventName, pluginName) : void 0;
-    }
-  }
+function isReservedProp(name) {
+  return RESERVED_PROPS.hasOwnProperty(name);
 }
 
-/**
- * Publishes an event so that it can be dispatched by the supplied plugin.
- *
- * @param {object} dispatchConfig Dispatch configuration for the event.
- * @param {object} PluginModule Plugin publishing the event.
- * @return {boolean} True if the event was successfully published.
- * @private
- */
-function publishEventForPlugin(dispatchConfig, pluginModule, eventName) {
-  !!EventPluginRegistry.eventNameDispatchConfigs.hasOwnProperty(eventName) ? invariant(false, 'EventPluginHub: More than one plugin attempted to publish the same event name, `%s`.', eventName) : void 0;
-  EventPluginRegistry.eventNameDispatchConfigs[eventName] = dispatchConfig;
+var injection = DOMPropertyInjection;
 
-  var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames;
-  if (phasedRegistrationNames) {
-    for (var phaseName in phasedRegistrationNames) {
-      if (phasedRegistrationNames.hasOwnProperty(phaseName)) {
-        var phasedRegistrationName = phasedRegistrationNames[phaseName];
-        publishRegistrationName(phasedRegistrationName, pluginModule, eventName);
+var MUST_USE_PROPERTY = injection.MUST_USE_PROPERTY;
+var HAS_BOOLEAN_VALUE = injection.HAS_BOOLEAN_VALUE;
+var HAS_NUMERIC_VALUE = injection.HAS_NUMERIC_VALUE;
+var HAS_POSITIVE_NUMERIC_VALUE = injection.HAS_POSITIVE_NUMERIC_VALUE;
+var HAS_OVERLOADED_BOOLEAN_VALUE = injection.HAS_OVERLOADED_BOOLEAN_VALUE;
+var HAS_STRING_BOOLEAN_VALUE = injection.HAS_STRING_BOOLEAN_VALUE;
+
+var HTMLDOMPropertyConfig = {
+  // When adding attributes to this list, be sure to also add them to
+  // the `possibleStandardNames` module to ensure casing and incorrect
+  // name warnings.
+  Properties: {
+    allowFullScreen: HAS_BOOLEAN_VALUE,
+    // specifies target context for links with `preload` type
+    async: HAS_BOOLEAN_VALUE,
+    // Note: there is a special case that prevents it from being written to the DOM
+    // on the client side because the browsers are inconsistent. Instead we call focus().
+    autoFocus: HAS_BOOLEAN_VALUE,
+    autoPlay: HAS_BOOLEAN_VALUE,
+    capture: HAS_OVERLOADED_BOOLEAN_VALUE,
+    checked: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
+    cols: HAS_POSITIVE_NUMERIC_VALUE,
+    contentEditable: HAS_STRING_BOOLEAN_VALUE,
+    controls: HAS_BOOLEAN_VALUE,
+    'default': HAS_BOOLEAN_VALUE,
+    defer: HAS_BOOLEAN_VALUE,
+    disabled: HAS_BOOLEAN_VALUE,
+    download: HAS_OVERLOADED_BOOLEAN_VALUE,
+    draggable: HAS_STRING_BOOLEAN_VALUE,
+    formNoValidate: HAS_BOOLEAN_VALUE,
+    hidden: HAS_BOOLEAN_VALUE,
+    loop: HAS_BOOLEAN_VALUE,
+    // Caution; `option.selected` is not updated if `select.multiple` is
+    // disabled with `removeAttribute`.
+    multiple: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
+    muted: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
+    noValidate: HAS_BOOLEAN_VALUE,
+    open: HAS_BOOLEAN_VALUE,
+    playsInline: HAS_BOOLEAN_VALUE,
+    readOnly: HAS_BOOLEAN_VALUE,
+    required: HAS_BOOLEAN_VALUE,
+    reversed: HAS_BOOLEAN_VALUE,
+    rows: HAS_POSITIVE_NUMERIC_VALUE,
+    rowSpan: HAS_NUMERIC_VALUE,
+    scoped: HAS_BOOLEAN_VALUE,
+    seamless: HAS_BOOLEAN_VALUE,
+    selected: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
+    size: HAS_POSITIVE_NUMERIC_VALUE,
+    start: HAS_NUMERIC_VALUE,
+    // support for projecting regular DOM Elements via V1 named slots ( shadow dom )
+    span: HAS_POSITIVE_NUMERIC_VALUE,
+    spellCheck: HAS_STRING_BOOLEAN_VALUE,
+    // Style must be explicitly set in the attribute list. React components
+    // expect a style object
+    style: 0,
+    // Keep it in the whitelist because it is case-sensitive for SVG.
+    tabIndex: 0,
+    // itemScope is for for Microdata support.
+    // See http://schema.org/docs/gs.html
+    itemScope: HAS_BOOLEAN_VALUE,
+    // These attributes must stay in the white-list because they have
+    // different attribute names (see DOMAttributeNames below)
+    acceptCharset: 0,
+    className: 0,
+    htmlFor: 0,
+    httpEquiv: 0,
+    // Attributes with mutation methods must be specified in the whitelist
+    // Set the string boolean flag to allow the behavior
+    value: HAS_STRING_BOOLEAN_VALUE
+  },
+  DOMAttributeNames: {
+    acceptCharset: 'accept-charset',
+    className: 'class',
+    htmlFor: 'for',
+    httpEquiv: 'http-equiv'
+  },
+  DOMMutationMethods: {
+    value: function (node, value) {
+      if (value == null) {
+        return node.removeAttribute('value');
+      }
+
+      // Number inputs get special treatment due to some edge cases in
+      // Chrome. Let everything else assign the value attribute as normal.
+      // https://github.com/facebook/react/issues/7253#issuecomment-236074326
+      if (node.type !== 'number' || node.hasAttribute('value') === false) {
+        node.setAttribute('value', '' + value);
+      } else if (node.validity && !node.validity.badInput && node.ownerDocument.activeElement !== node) {
+        // Don't assign an attribute if validation reports bad
+        // input. Chrome will clear the value. Additionally, don't
+        // operate on inputs that have focus, otherwise Chrome might
+        // strip off trailing decimal places and cause the user's
+        // cursor position to jump to the beginning of the input.
+        //
+        // In ReactDOMInput, we have an onBlur event that will trigger
+        // this function again when focus is lost.
+        node.setAttribute('value', '' + value);
       }
     }
-    return true;
-  } else if (dispatchConfig.registrationName) {
-    publishRegistrationName(dispatchConfig.registrationName, pluginModule, eventName);
-    return true;
   }
-  return false;
-}
+};
 
-/**
- * Publishes a registration name that is used to identify dispatched events.
- *
- * @param {string} registrationName Registration name to add.
- * @param {object} PluginModule Plugin publishing the event.
- * @private
- */
-function publishRegistrationName(registrationName, pluginModule, eventName) {
-  !!EventPluginRegistry.registrationNameModules[registrationName] ? invariant(false, 'EventPluginHub: More than one plugin attempted to publish the same registration name, `%s`.', registrationName) : void 0;
-  EventPluginRegistry.registrationNameModules[registrationName] = pluginModule;
-  EventPluginRegistry.registrationNameDependencies[registrationName] = pluginModule.eventTypes[eventName].dependencies;
+var HAS_STRING_BOOLEAN_VALUE$1 = injection.HAS_STRING_BOOLEAN_VALUE;
 
-  {
-    var lowerCasedName = registrationName.toLowerCase();
-    EventPluginRegistry.possibleRegistrationNames[lowerCasedName] = registrationName;
 
-    if (registrationName === 'onDoubleClick') {
-      EventPluginRegistry.possibleRegistrationNames.ondblclick = registrationName;
-    }
-  }
-}
+var NS = {
+  xlink: 'http://www.w3.org/1999/xlink',
+  xml: 'http://www.w3.org/XML/1998/namespace'
+};
 
 /**
- * Registers plugins so that they can extract and dispatch events.
+ * This is a list of all SVG attributes that need special casing,
+ * namespacing, or boolean value assignment.
  *
- * @see {EventPluginHub}
+ * When adding attributes to this list, be sure to also add them to
+ * the `possibleStandardNames` module to ensure casing and incorrect
+ * name warnings.
+ *
+ * SVG Attributes List:
+ * https://www.w3.org/TR/SVG/attindex.html
+ * SMIL Spec:
+ * https://www.w3.org/TR/smil
  */
-var EventPluginRegistry = {
-  /**
-   * Ordered list of injected plugins.
-   */
-  plugins: [],
+var ATTRS = ['accent-height', 'alignment-baseline', 'arabic-form', 'baseline-shift', 'cap-height', 'clip-path', 'clip-rule', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'dominant-baseline', 'enable-background', 'fill-opacity', 'fill-rule', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'glyph-name', 'glyph-orientation-horizontal', 'glyph-orientation-vertical', 'horiz-adv-x', 'horiz-origin-x', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start', 'overline-position', 'overline-thickness', 'paint-order', 'panose-1', 'pointer-events', 'rendering-intent', 'shape-rendering', 'stop-color', 'stop-opacity', 'strikethrough-position', 'strikethrough-thickness', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'text-anchor', 'text-decoration', 'text-rendering', 'underline-position', 'underline-thickness', 'unicode-bidi', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'vector-effect', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'word-spacing', 'writing-mode', 'x-height', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xmlns:xlink', 'xml:lang', 'xml:space'];
 
-  /**
-   * Mapping from event name to dispatch config
-   */
-  eventNameDispatchConfigs: {},
+var SVGDOMPropertyConfig = {
+  Properties: {
+    autoReverse: HAS_STRING_BOOLEAN_VALUE$1,
+    externalResourcesRequired: HAS_STRING_BOOLEAN_VALUE$1,
+    preserveAlpha: HAS_STRING_BOOLEAN_VALUE$1
+  },
+  DOMAttributeNames: {
+    autoReverse: 'autoReverse',
+    externalResourcesRequired: 'externalResourcesRequired',
+    preserveAlpha: 'preserveAlpha'
+  },
+  DOMAttributeNamespaces: {
+    xlinkActuate: NS.xlink,
+    xlinkArcrole: NS.xlink,
+    xlinkHref: NS.xlink,
+    xlinkRole: NS.xlink,
+    xlinkShow: NS.xlink,
+    xlinkTitle: NS.xlink,
+    xlinkType: NS.xlink,
+    xmlBase: NS.xml,
+    xmlLang: NS.xml,
+    xmlSpace: NS.xml
+  }
+};
 
-  /**
-   * Mapping from registration name to plugin module
-   */
-  registrationNameModules: {},
+var CAMELIZE = /[\-\:]([a-z])/g;
+var capitalize = function (token) {
+  return token[1].toUpperCase();
+};
 
-  /**
-   * Mapping from registration name to event name
-   */
-  registrationNameDependencies: {},
+ATTRS.forEach(function (original) {
+  var reactName = original.replace(CAMELIZE, capitalize);
 
-  /**
-   * Mapping from lowercase registration names to the properly cased version,
-   * used to warn in the case of missing event handlers. Available
-   * only in true.
-   * @type {Object}
-   */
-  possibleRegistrationNames: {},
-  // Trust the developer to only use possibleRegistrationNames in true
+  SVGDOMPropertyConfig.Properties[reactName] = 0;
+  SVGDOMPropertyConfig.DOMAttributeNames[reactName] = original;
+});
+
+injection.injectDOMPropertyConfig(HTMLDOMPropertyConfig);
+injection.injectDOMPropertyConfig(SVGDOMPropertyConfig);
+
+var ReactErrorUtils = {
+  // Used by Fiber to simulate a try-catch.
+  _caughtError: null,
+  _hasCaughtError: false,
+
+  // Used by event system to capture/rethrow the first error.
+  _rethrowError: null,
+  _hasRethrowError: false,
+
+  injection: {
+    injectErrorUtils: function (injectedErrorUtils) {
+      !(typeof injectedErrorUtils.invokeGuardedCallback === 'function') ? invariant(false, 'Injected invokeGuardedCallback() must be a function.') : void 0;
+      invokeGuardedCallback = injectedErrorUtils.invokeGuardedCallback;
+    }
+  },
 
   /**
-   * Injects an ordering of plugins (by plugin name). This allows the ordering
-   * to be decoupled from injection of the actual plugins so that ordering is
-   * always deterministic regardless of packaging, on-the-fly injection, etc.
+   * Call a function while guarding against errors that happens within it.
+   * Returns an error if it throws, otherwise null.
    *
-   * @param {array} InjectedEventPluginOrder
-   * @internal
-   * @see {EventPluginHub.injection.injectEventPluginOrder}
+   * In production, this is implemented using a try-catch. The reason we don't
+   * use a try-catch directly is so that we can swap out a different
+   * implementation in DEV mode.
+   *
+   * @param {String} name of the guard to use for logging or debugging
+   * @param {Function} func The function to invoke
+   * @param {*} context The context to use when calling the function
+   * @param {...*} args Arguments for function
    */
-  injectEventPluginOrder: function (injectedEventPluginOrder) {
-    !!eventPluginOrder ? invariant(false, 'EventPluginRegistry: Cannot inject event plugin ordering more than once. You are likely trying to load more than one copy of React.') : void 0;
-    // Clone the ordering so it cannot be dynamically mutated.
-    eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder);
-    recomputePluginOrdering();
+  invokeGuardedCallback: function (name, func, context, a, b, c, d, e, f) {
+    invokeGuardedCallback.apply(ReactErrorUtils, arguments);
   },
 
   /**
-   * Injects plugins to be used by `EventPluginHub`. The plugin names must be
-   * in the ordering injected by `injectEventPluginOrder`.
-   *
-   * Plugins can be injected as part of page initialization or on-the-fly.
+   * Same as invokeGuardedCallback, but instead of returning an error, it stores
+   * it in a global so it can be rethrown by `rethrowCaughtError` later.
+   * TODO: See if _caughtError and _rethrowError can be unified.
    *
-   * @param {object} injectedNamesToPlugins Map from names to plugin modules.
-   * @internal
-   * @see {EventPluginHub.injection.injectEventPluginsByName}
+   * @param {String} name of the guard to use for logging or debugging
+   * @param {Function} func The function to invoke
+   * @param {*} context The context to use when calling the function
+   * @param {...*} args Arguments for function
    */
-  injectEventPluginsByName: function (injectedNamesToPlugins) {
-    var isOrderingDirty = false;
-    for (var pluginName in injectedNamesToPlugins) {
-      if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) {
-        continue;
-      }
-      var pluginModule = injectedNamesToPlugins[pluginName];
-      if (!namesToPlugins.hasOwnProperty(pluginName) || namesToPlugins[pluginName] !== pluginModule) {
-        !!namesToPlugins[pluginName] ? invariant(false, 'EventPluginRegistry: Cannot inject two different event plugins using the same name, `%s`.', pluginName) : void 0;
-        namesToPlugins[pluginName] = pluginModule;
-        isOrderingDirty = true;
+  invokeGuardedCallbackAndCatchFirstError: function (name, func, context, a, b, c, d, e, f) {
+    ReactErrorUtils.invokeGuardedCallback.apply(this, arguments);
+    if (ReactErrorUtils.hasCaughtError()) {
+      var error = ReactErrorUtils.clearCaughtError();
+      if (!ReactErrorUtils._hasRethrowError) {
+        ReactErrorUtils._hasRethrowError = true;
+        ReactErrorUtils._rethrowError = error;
       }
     }
-    if (isOrderingDirty) {
-      recomputePluginOrdering();
-    }
-  }
-};
+  },
 
-var EventPluginRegistry_1 = EventPluginRegistry;
+  /**
+   * During execution of guarded functions we will capture the first error which
+   * we will rethrow to be handled by the top level error handler.
+   */
+  rethrowCaughtError: function () {
+    return rethrowCaughtError.apply(ReactErrorUtils, arguments);
+  },
 
-// These attributes should be all lowercase to allow for
-// case insensitive checks
-var RESERVED_PROPS = {
-  children: true,
-  dangerouslySetInnerHTML: true,
-  autoFocus: true,
-  defaultValue: true,
-  defaultChecked: true,
-  innerHTML: true,
-  suppressContentEditableWarning: true,
-  style: true
+  hasCaughtError: function () {
+    return ReactErrorUtils._hasCaughtError;
+  },
+
+  clearCaughtError: function () {
+    if (ReactErrorUtils._hasCaughtError) {
+      var error = ReactErrorUtils._caughtError;
+      ReactErrorUtils._caughtError = null;
+      ReactErrorUtils._hasCaughtError = false;
+      return error;
+    } else {
+      invariant(false, 'clearCaughtError was called but no error was captured. This error is likely caused by a bug in React. Please file an issue.');
+    }
+  }
 };
 
-function checkMask(value, bitmask) {
-  return (value & bitmask) === bitmask;
-}
+var invokeGuardedCallback = function (name, func, context, a, b, c, d, e, f) {
+  ReactErrorUtils._hasCaughtError = false;
+  ReactErrorUtils._caughtError = null;
+  var funcArgs = Array.prototype.slice.call(arguments, 3);
+  try {
+    func.apply(context, funcArgs);
+  } catch (error) {
+    ReactErrorUtils._caughtError = error;
+    ReactErrorUtils._hasCaughtError = true;
+  }
+};
 
-var DOMPropertyInjection = {
-  /**
-   * Mapping from normalized, camelcased property names to a configuration that
-   * specifies how the associated DOM property should be accessed or rendered.
-   */
-  MUST_USE_PROPERTY: 0x1,
-  HAS_BOOLEAN_VALUE: 0x4,
-  HAS_NUMERIC_VALUE: 0x8,
-  HAS_POSITIVE_NUMERIC_VALUE: 0x10 | 0x8,
-  HAS_OVERLOADED_BOOLEAN_VALUE: 0x20,
-  HAS_STRING_BOOLEAN_VALUE: 0x40,
+{
+  // In DEV mode, we swap out invokeGuardedCallback for a special version
+  // that plays more nicely with the browser's DevTools. The idea is to preserve
+  // "Pause on exceptions" behavior. Because React wraps all user-provided
+  // functions in invokeGuardedCallback, and the production version of
+  // invokeGuardedCallback uses a try-catch, all user exceptions are treated
+  // like caught exceptions, and the DevTools won't pause unless the developer
+  // takes the extra step of enabling pause on caught exceptions. This is
+  // untintuitive, though, because even though React has caught the error, from
+  // the developer's perspective, the error is uncaught.
+  //
+  // To preserve the expected "Pause on exceptions" behavior, we don't use a
+  // try-catch in DEV. Instead, we synchronously dispatch a fake event to a fake
+  // DOM node, and call the user-provided callback from inside an event handler
+  // for that fake event. If the callback throws, the error is "captured" using
+  // a global event handler. But because the error happens in a different
+  // event loop context, it does not interrupt the normal program flow.
+  // Effectively, this gives us try-catch behavior without actually using
+  // try-catch. Neat!
 
-  /**
-   * Inject some specialized knowledge about the DOM. This takes a config object
-   * with the following properties:
-   *
-   * Properties: object mapping DOM property name to one of the
-   * DOMPropertyInjection constants or null. If your attribute isn't in here,
-   * it won't get written to the DOM.
-   *
-   * DOMAttributeNames: object mapping React attribute name to the DOM
-   * attribute name. Attribute names not specified use the **lowercase**
-   * normalized name.
-   *
-   * DOMAttributeNamespaces: object mapping React attribute name to the DOM
-   * attribute namespace URL. (Attribute names not specified use no namespace.)
-   *
-   * DOMPropertyNames: similar to DOMAttributeNames but for DOM properties.
-   * Property names not specified use the normalized name.
-   *
-   * DOMMutationMethods: Properties that require special mutation methods. If
-   * `value` is undefined, the mutation method should unset the property.
-   *
-   * @param {object} domPropertyConfig the config as described above.
-   */
-  injectDOMPropertyConfig: function (domPropertyConfig) {
-    var Injection = DOMPropertyInjection;
-    var Properties = domPropertyConfig.Properties || {};
-    var DOMAttributeNamespaces = domPropertyConfig.DOMAttributeNamespaces || {};
-    var DOMAttributeNames = domPropertyConfig.DOMAttributeNames || {};
-    var DOMMutationMethods = domPropertyConfig.DOMMutationMethods || {};
+  // Check that the browser supports the APIs we need to implement our special
+  // DEV version of invokeGuardedCallback
+  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {
+    var fakeNode = document.createElement('react');
 
-    for (var propName in Properties) {
-      !!DOMProperty.properties.hasOwnProperty(propName) ? invariant(false, 'injectDOMPropertyConfig(...): You\'re trying to inject DOM property \'%s\' which has already been injected. You may be accidentally injecting the same DOM property config twice, or you may be injecting two configs that have conflicting property names.', propName) : void 0;
+    var invokeGuardedCallbackDev = function (name, func, context, a, b, c, d, e, f) {
+      // Keeps track of whether the user-provided callback threw an error. We
+      // set this to true at the beginning, then set it to false right after
+      // calling the function. If the function errors, `didError` will never be
+      // set to false. This strategy works even if the browser is flaky and
+      // fails to call our global error handler, because it doesn't rely on
+      // the error event at all.
+      var didError = true;
 
-      var lowerCased = propName.toLowerCase();
-      var propConfig = Properties[propName];
+      // Create an event handler for our fake event. We will synchronously
+      // dispatch our fake event using `dispatchEvent`. Inside the handler, we
+      // call the user-provided callback.
+      var funcArgs = Array.prototype.slice.call(arguments, 3);
+      function callCallback() {
+        // We immediately remove the callback from event listeners so that
+        // nested `invokeGuardedCallback` calls do not clash. Otherwise, a
+        // nested call would trigger the fake event handlers of any call higher
+        // in the stack.
+        fakeNode.removeEventListener(evtType, callCallback, false);
+        func.apply(context, funcArgs);
+        didError = false;
+      }
 
-      var propertyInfo = {
-        attributeName: lowerCased,
-        attributeNamespace: null,
-        propertyName: propName,
-        mutationMethod: null,
+      // Create a global error event handler. We use this to capture the value
+      // that was thrown. It's possible that this error handler will fire more
+      // than once; for example, if non-React code also calls `dispatchEvent`
+      // and a handler for that event throws. We should be resilient to most of
+      // those cases. Even if our error event handler fires more than once, the
+      // last error event is always used. If the callback actually does error,
+      // we know that the last error event is the correct one, because it's not
+      // possible for anything else to have happened in between our callback
+      // erroring and the code that follows the `dispatchEvent` call below. If
+      // the callback doesn't error, but the error event was fired, we know to
+      // ignore it because `didError` will be false, as described above.
+      var error = void 0;
+      // Use this to track whether the error event is ever called.
+      var didSetError = false;
+      var isCrossOriginError = false;
 
-        mustUseProperty: checkMask(propConfig, Injection.MUST_USE_PROPERTY),
-        hasBooleanValue: checkMask(propConfig, Injection.HAS_BOOLEAN_VALUE),
-        hasNumericValue: checkMask(propConfig, Injection.HAS_NUMERIC_VALUE),
-        hasPositiveNumericValue: checkMask(propConfig, Injection.HAS_POSITIVE_NUMERIC_VALUE),
-        hasOverloadedBooleanValue: checkMask(propConfig, Injection.HAS_OVERLOADED_BOOLEAN_VALUE),
-        hasStringBooleanValue: checkMask(propConfig, Injection.HAS_STRING_BOOLEAN_VALUE)
-      };
-      !(propertyInfo.hasBooleanValue + propertyInfo.hasNumericValue + propertyInfo.hasOverloadedBooleanValue <= 1) ? invariant(false, 'DOMProperty: Value can be one of boolean, overloaded boolean, or numeric value, but not a combination: %s', propName) : void 0;
+      function onError(event) {
+        error = event.error;
+        didSetError = true;
+        if (error === null && event.colno === 0 && event.lineno === 0) {
+          isCrossOriginError = true;
+        }
+      }
 
-      if (DOMAttributeNames.hasOwnProperty(propName)) {
-        var attributeName = DOMAttributeNames[propName];
+      // Create a fake event type.
+      var evtType = 'react-' + (name ? name : 'invokeguardedcallback');
 
-        propertyInfo.attributeName = attributeName;
-      }
+      // Attach our event handlers
+      window.addEventListener('error', onError);
+      fakeNode.addEventListener(evtType, callCallback, false);
 
-      if (DOMAttributeNamespaces.hasOwnProperty(propName)) {
-        propertyInfo.attributeNamespace = DOMAttributeNamespaces[propName];
-      }
+      // Synchronously dispatch our fake event. If the user-provided function
+      // errors, it will trigger our global error handler.
+      var evt = document.createEvent('Event');
+      evt.initEvent(evtType, false, false);
+      fakeNode.dispatchEvent(evt);
 
-      if (DOMMutationMethods.hasOwnProperty(propName)) {
-        propertyInfo.mutationMethod = DOMMutationMethods[propName];
+      if (didError) {
+        if (!didSetError) {
+          // The callback errored, but the error event never fired.
+          error = new Error('An error was thrown inside one of your components, but React ' + "doesn't know what it was. This is likely due to browser " + 'flakiness. React does its best to preserve the "Pause on ' + 'exceptions" behavior of the DevTools, which requires some ' + "DEV-mode only tricks. It's possible that these don't work in " + 'your browser. Try triggering the error in production mode, ' + 'or switching to a modern browser. If you suspect that this is ' + 'actually an issue with React, please file an issue.');
+        } else if (isCrossOriginError) {
+          error = new Error("A cross-origin error was thrown. React doesn't have access to " + 'the actual error object in development. ' + 'See https://fb.me/react-crossorigin-error for more information.');
+        }
+        ReactErrorUtils._hasCaughtError = true;
+        ReactErrorUtils._caughtError = error;
+      } else {
+        ReactErrorUtils._hasCaughtError = false;
+        ReactErrorUtils._caughtError = null;
       }
 
-      // Downcase references to whitelist properties to check for membership
-      // without case-sensitivity. This allows the whitelist to pick up
-      // `allowfullscreen`, which should be written using the property configuration
-      // for `allowFullscreen`
-      DOMProperty.properties[propName] = propertyInfo;
-    }
+      // Remove our event listeners
+      window.removeEventListener('error', onError);
+    };
+
+    invokeGuardedCallback = invokeGuardedCallbackDev;
   }
-};
+}
 
-/* eslint-disable max-len */
-var ATTRIBUTE_NAME_START_CHAR = ':A-Z_a-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD';
-/* eslint-enable max-len */
+var rethrowCaughtError = function () {
+  if (ReactErrorUtils._hasRethrowError) {
+    var error = ReactErrorUtils._rethrowError;
+    ReactErrorUtils._rethrowError = null;
+    ReactErrorUtils._hasRethrowError = false;
+    throw error;
+  }
+};
 
 /**
- * DOMProperty exports lookup objects that can be used like functions:
- *
- *   > DOMProperty.isValid['id']
- *   true
- *   > DOMProperty.isValid['foobar']
- *   undefined
- *
- * Although this may be confusing, it performs better in general.
- *
- * @see http://jsperf.com/key-exists
- * @see http://jsperf.com/key-missing
+ * Injectable ordering of event plugins.
  */
-var DOMProperty = {
-  ID_ATTRIBUTE_NAME: 'data-reactid',
-  ROOT_ATTRIBUTE_NAME: 'data-reactroot',
-
-  ATTRIBUTE_NAME_START_CHAR: ATTRIBUTE_NAME_START_CHAR,
-  ATTRIBUTE_NAME_CHAR: ATTRIBUTE_NAME_START_CHAR + '\\-.0-9\\u00B7\\u0300-\\u036F\\u203F-\\u2040',
+var eventPluginOrder = null;
 
-  /**
-   * Map from property "standard name" to an object with info about how to set
-   * the property in the DOM. Each object contains:
-   *
-   * attributeName:
-   *   Used when rendering markup or with `*Attribute()`.
-   * attributeNamespace
-   * propertyName:
-   *   Used on DOM node instances. (This includes properties that mutate due to
-   *   external factors.)
-   * mutationMethod:
-   *   If non-null, used instead of the property or `setAttribute()` after
-   *   initial render.
-   * mustUseProperty:
-   *   Whether the property must be accessed and mutated as an object property.
-   * hasBooleanValue:
-   *   Whether the property should be removed when set to a falsey value.
-   * hasNumericValue:
-   *   Whether the property must be numeric or parse as a numeric and should be
-   *   removed when set to a falsey value.
-   * hasPositiveNumericValue:
-   *   Whether the property must be positive numeric or parse as a positive
-   *   numeric and should be removed when set to a falsey value.
-   * hasOverloadedBooleanValue:
-   *   Whether the property can be used as a flag as well as with a value.
-   *   Removed when strictly equal to false; present without a value when
-   *   strictly equal to true; present with a value otherwise.
-   */
-  properties: {},
+/**
+ * Injectable mapping from names to event plugin modules.
+ */
+var namesToPlugins = {};
 
-  /**
-   * Checks whether a property name is a writeable attribute.
-   * @method
-   */
-  shouldSetAttribute: function (name, value) {
-    if (DOMProperty.isReservedProp(name)) {
-      return false;
-    }
-    if ((name[0] === 'o' || name[0] === 'O') && (name[1] === 'n' || name[1] === 'N')) {
-      return false;
-    }
-    if (value === null) {
-      return true;
+/**
+ * Recomputes the plugin list using the injected plugins and plugin ordering.
+ *
+ * @private
+ */
+function recomputePluginOrdering() {
+  if (!eventPluginOrder) {
+    // Wait until an `eventPluginOrder` is injected.
+    return;
+  }
+  for (var pluginName in namesToPlugins) {
+    var pluginModule = namesToPlugins[pluginName];
+    var pluginIndex = eventPluginOrder.indexOf(pluginName);
+    !(pluginIndex > -1) ? invariant(false, 'EventPluginRegistry: Cannot inject event plugins that do not exist in the plugin ordering, `%s`.', pluginName) : void 0;
+    if (plugins[pluginIndex]) {
+      continue;
     }
-    switch (typeof value) {
-      case 'boolean':
-        return DOMProperty.shouldAttributeAcceptBooleanValue(name);
-      case 'undefined':
-      case 'number':
-      case 'string':
-      case 'object':
-        return true;
-      default:
-        // function, symbol
-        return false;
+    !pluginModule.extractEvents ? invariant(false, 'EventPluginRegistry: Event plugins must implement an `extractEvents` method, but `%s` does not.', pluginName) : void 0;
+    plugins[pluginIndex] = pluginModule;
+    var publishedEvents = pluginModule.eventTypes;
+    for (var eventName in publishedEvents) {
+      !publishEventForPlugin(publishedEvents[eventName], pluginModule, eventName) ? invariant(false, 'EventPluginRegistry: Failed to publish event `%s` for plugin `%s`.', eventName, pluginName) : void 0;
     }
-  },
-
-  getPropertyInfo: function (name) {
-    return DOMProperty.properties.hasOwnProperty(name) ? DOMProperty.properties[name] : null;
-  },
-  shouldAttributeAcceptBooleanValue: function (name) {
-    if (DOMProperty.isReservedProp(name)) {
-      return true;
-    }
-    var propertyInfo = DOMProperty.getPropertyInfo(name);
-    if (propertyInfo) {
-      return propertyInfo.hasBooleanValue || propertyInfo.hasStringBooleanValue || propertyInfo.hasOverloadedBooleanValue;
-    }
-    var prefix = name.toLowerCase().slice(0, 5);
-    return prefix === 'data-' || prefix === 'aria-';
-  },
-
-
-  /**
-   * Checks to see if a property name is within the list of properties
-   * reserved for internal React operations. These properties should
-   * not be set on an HTML element.
-   *
-   * @private
-   * @param {string} name
-   * @return {boolean} If the name is within reserved props
-   */
-  isReservedProp: function (name) {
-    return RESERVED_PROPS.hasOwnProperty(name);
-  },
-
-
-  injection: DOMPropertyInjection
-};
-
-var DOMProperty_1 = DOMProperty;
+  }
+}
 
 /**
- * Copyright (c) 2015-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * Publishes an event so that it can be dispatched by the supplied plugin.
  *
- * @providesModule ReactDOMComponentFlags
+ * @param {object} dispatchConfig Dispatch configuration for the event.
+ * @param {object} PluginModule Plugin publishing the event.
+ * @return {boolean} True if the event was successfully published.
+ * @private
  */
+function publishEventForPlugin(dispatchConfig, pluginModule, eventName) {
+  !!eventNameDispatchConfigs.hasOwnProperty(eventName) ? invariant(false, 'EventPluginHub: More than one plugin attempted to publish the same event name, `%s`.', eventName) : void 0;
+  eventNameDispatchConfigs[eventName] = dispatchConfig;
 
-var ReactDOMComponentFlags = {
-  hasCachedChildNodes: 1 << 0
-};
-
-var ReactDOMComponentFlags_1 = ReactDOMComponentFlags;
+  var phasedRegistrationNames = dispatchConfig.phasedRegistrationNames;
+  if (phasedRegistrationNames) {
+    for (var phaseName in phasedRegistrationNames) {
+      if (phasedRegistrationNames.hasOwnProperty(phaseName)) {
+        var phasedRegistrationName = phasedRegistrationNames[phaseName];
+        publishRegistrationName(phasedRegistrationName, pluginModule, eventName);
+      }
+    }
+    return true;
+  } else if (dispatchConfig.registrationName) {
+    publishRegistrationName(dispatchConfig.registrationName, pluginModule, eventName);
+    return true;
+  }
+  return false;
+}
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * Publishes a registration name that is used to identify dispatched events.
  *
- * @providesModule ReactTypeOfWork
- * 
+ * @param {string} registrationName Registration name to add.
+ * @param {object} PluginModule Plugin publishing the event.
+ * @private
  */
+function publishRegistrationName(registrationName, pluginModule, eventName) {
+  !!registrationNameModules[registrationName] ? invariant(false, 'EventPluginHub: More than one plugin attempted to publish the same registration name, `%s`.', registrationName) : void 0;
+  registrationNameModules[registrationName] = pluginModule;
+  registrationNameDependencies[registrationName] = pluginModule.eventTypes[eventName].dependencies;
 
-var ReactTypeOfWork = {
-  IndeterminateComponent: 0, // Before we know whether it is functional or class
-  FunctionalComponent: 1,
-  ClassComponent: 2,
-  HostRoot: 3, // Root of a host tree. Could be nested inside another node.
-  HostPortal: 4, // A subtree. Could be an entry point to a different renderer.
-  HostComponent: 5,
-  HostText: 6,
-  CoroutineComponent: 7,
-  CoroutineHandlerPhase: 8,
-  YieldComponent: 9,
-  Fragment: 10
-};
+  {
+    var lowerCasedName = registrationName.toLowerCase();
+    possibleRegistrationNames[lowerCasedName] = registrationName;
+
+    if (registrationName === 'onDoubleClick') {
+      possibleRegistrationNames.ondblclick = registrationName;
+    }
+  }
+}
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * Registers plugins so that they can extract and dispatch events.
  *
- * @providesModule HTMLNodeType
+ * @see {EventPluginHub}
  */
 
 /**
- * HTML nodeType values that represent the type of the node
+ * Ordered list of injected plugins.
  */
-
-var HTMLNodeType = {
-  ELEMENT_NODE: 1,
-  TEXT_NODE: 3,
-  COMMENT_NODE: 8,
-  DOCUMENT_NODE: 9,
-  DOCUMENT_FRAGMENT_NODE: 11
-};
-
-var HTMLNodeType_1 = HTMLNodeType;
-
-var HostComponent = ReactTypeOfWork.HostComponent;
-var HostText = ReactTypeOfWork.HostText;
-
-var ELEMENT_NODE$1 = HTMLNodeType_1.ELEMENT_NODE;
-var COMMENT_NODE$1 = HTMLNodeType_1.COMMENT_NODE;
-
-
-
-var ATTR_NAME = DOMProperty_1.ID_ATTRIBUTE_NAME;
-var Flags = ReactDOMComponentFlags_1;
-
-var randomKey = Math.random().toString(36).slice(2);
-
-var internalInstanceKey = '__reactInternalInstance$' + randomKey;
-
-var internalEventHandlersKey = '__reactEventHandlers$' + randomKey;
+var plugins = [];
 
 /**
- * Check if a given node should be cached.
+ * Mapping from event name to dispatch config
  */
-function shouldPrecacheNode(node, nodeID) {
-  return node.nodeType === ELEMENT_NODE$1 && node.getAttribute(ATTR_NAME) === '' + nodeID || node.nodeType === COMMENT_NODE$1 && node.nodeValue === ' react-text: ' + nodeID + ' ' || node.nodeType === COMMENT_NODE$1 && node.nodeValue === ' react-empty: ' + nodeID + ' ';
-}
+var eventNameDispatchConfigs = {};
 
 /**
- * Drill down (through composites and empty components) until we get a host or
- * host text component.
- *
- * This is pretty polymorphic but unavoidable with the current structure we have
- * for `_renderedChildren`.
+ * Mapping from registration name to plugin module
  */
-function getRenderedHostOrTextFromComponent(component) {
-  var rendered;
-  while (rendered = component._renderedComponent) {
-    component = rendered;
-  }
-  return component;
-}
+var registrationNameModules = {};
 
 /**
- * Populate `_hostNode` on the rendered host/text component with the given
- * DOM node. The passed `inst` can be a composite.
+ * Mapping from registration name to event name
  */
-function precacheNode(inst, node) {
-  var hostInst = getRenderedHostOrTextFromComponent(inst);
-  hostInst._hostNode = node;
-  node[internalInstanceKey] = hostInst;
-}
+var registrationNameDependencies = {};
 
-function precacheFiberNode$1(hostInst, node) {
-  node[internalInstanceKey] = hostInst;
-}
+/**
+ * Mapping from lowercase registration names to the properly cased version,
+ * used to warn in the case of missing event handlers. Available
+ * only in true.
+ * @type {Object}
+ */
+var possibleRegistrationNames = {};
+// Trust the developer to only use possibleRegistrationNames in true
 
-function uncacheNode(inst) {
-  var node = inst._hostNode;
-  if (node) {
-    delete node[internalInstanceKey];
-    inst._hostNode = null;
-  }
+/**
+ * Injects an ordering of plugins (by plugin name). This allows the ordering
+ * to be decoupled from injection of the actual plugins so that ordering is
+ * always deterministic regardless of packaging, on-the-fly injection, etc.
+ *
+ * @param {array} InjectedEventPluginOrder
+ * @internal
+ * @see {EventPluginHub.injection.injectEventPluginOrder}
+ */
+function injectEventPluginOrder(injectedEventPluginOrder) {
+  !!eventPluginOrder ? invariant(false, 'EventPluginRegistry: Cannot inject event plugin ordering more than once. You are likely trying to load more than one copy of React.') : void 0;
+  // Clone the ordering so it cannot be dynamically mutated.
+  eventPluginOrder = Array.prototype.slice.call(injectedEventPluginOrder);
+  recomputePluginOrdering();
 }
 
 /**
- * Populate `_hostNode` on each child of `inst`, assuming that the children
- * match up with the DOM (element) children of `node`.
+ * Injects plugins to be used by `EventPluginHub`. The plugin names must be
+ * in the ordering injected by `injectEventPluginOrder`.
  *
- * We cache entire levels at once to avoid an n^2 problem where we access the
- * children of a node sequentially and have to walk from the start to our target
- * node every time.
+ * Plugins can be injected as part of page initialization or on-the-fly.
  *
- * Since we update `_renderedChildren` and the actual DOM at (slightly)
- * different times, we could race here and see a newer `_renderedChildren` than
- * the DOM nodes we see. To avoid this, ReactMultiChild calls
- * `prepareToManageChildren` before we change `_renderedChildren`, at which
- * time the container's child nodes are always cached (until it unmounts).
+ * @param {object} injectedNamesToPlugins Map from names to plugin modules.
+ * @internal
+ * @see {EventPluginHub.injection.injectEventPluginsByName}
  */
-function precacheChildNodes(inst, node) {
-  if (inst._flags & Flags.hasCachedChildNodes) {
-    return;
-  }
-  var children = inst._renderedChildren;
-  var childNode = node.firstChild;
-  outer: for (var name in children) {
-    if (!children.hasOwnProperty(name)) {
-      continue;
-    }
-    var childInst = children[name];
-    var childID = getRenderedHostOrTextFromComponent(childInst)._domID;
-    if (childID === 0) {
-      // We're currently unmounting this child in ReactMultiChild; skip it.
+function injectEventPluginsByName(injectedNamesToPlugins) {
+  var isOrderingDirty = false;
+  for (var pluginName in injectedNamesToPlugins) {
+    if (!injectedNamesToPlugins.hasOwnProperty(pluginName)) {
       continue;
     }
-    // We assume the child nodes are in the same order as the child instances.
-    for (; childNode !== null; childNode = childNode.nextSibling) {
-      if (shouldPrecacheNode(childNode, childID)) {
-        precacheNode(childInst, childNode);
-        continue outer;
-      }
+    var pluginModule = injectedNamesToPlugins[pluginName];
+    if (!namesToPlugins.hasOwnProperty(pluginName) || namesToPlugins[pluginName] !== pluginModule) {
+      !!namesToPlugins[pluginName] ? invariant(false, 'EventPluginRegistry: Cannot inject two different event plugins using the same name, `%s`.', pluginName) : void 0;
+      namesToPlugins[pluginName] = pluginModule;
+      isOrderingDirty = true;
     }
-    // We reached the end of the DOM children without finding an ID match.
-    invariant(false, 'Unable to find element with ID %s.', childID);
   }
-  inst._flags |= Flags.hasCachedChildNodes;
+  if (isOrderingDirty) {
+    recomputePluginOrdering();
+  }
 }
 
-/**
- * Given a DOM node, return the closest ReactDOMComponent or
- * ReactDOMTextComponent instance ancestor.
- */
-function getClosestInstanceFromNode(node) {
-  if (node[internalInstanceKey]) {
-    return node[internalInstanceKey];
-  }
+var EventPluginRegistry = Object.freeze({
+	plugins: plugins,
+	eventNameDispatchConfigs: eventNameDispatchConfigs,
+	registrationNameModules: registrationNameModules,
+	registrationNameDependencies: registrationNameDependencies,
+	possibleRegistrationNames: possibleRegistrationNames,
+	injectEventPluginOrder: injectEventPluginOrder,
+	injectEventPluginsByName: injectEventPluginsByName
+});
 
-  // Walk up the tree until we find an ancestor whose instance we have cached.
-  var parents = [];
-  while (!node[internalInstanceKey]) {
-    parents.push(node);
-    if (node.parentNode) {
-      node = node.parentNode;
-    } else {
-      // Top of the tree. This node must not be part of a React tree (or is
-      // unmounted, potentially).
-      return null;
-    }
-  }
+var getFiberCurrentPropsFromNode = null;
+var getInstanceFromNode = null;
+var getNodeFromInstance = null;
 
-  var closest;
-  var inst = node[internalInstanceKey];
-  if (inst.tag === HostComponent || inst.tag === HostText) {
-    // In Fiber, this will always be the deepest root.
-    return inst;
-  }
-  for (; node && (inst = node[internalInstanceKey]); node = parents.pop()) {
-    closest = inst;
-    if (parents.length) {
-      precacheChildNodes(inst, node);
+var injection$2 = {
+  injectComponentTree: function (Injected) {
+    getFiberCurrentPropsFromNode = Injected.getFiberCurrentPropsFromNode;
+    getInstanceFromNode = Injected.getInstanceFromNode;
+    getNodeFromInstance = Injected.getNodeFromInstance;
+
+    {
+      warning(getNodeFromInstance && getInstanceFromNode, 'EventPluginUtils.injection.injectComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.');
     }
   }
+};
 
-  return closest;
-}
 
-/**
- * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent
- * instance, or null if the node was not rendered by this React.
- */
-function getInstanceFromNode(node) {
-  var inst = node[internalInstanceKey];
-  if (inst) {
-    if (inst.tag === HostComponent || inst.tag === HostText) {
-      return inst;
-    } else if (inst._hostNode === node) {
-      return inst;
-    } else {
-      return null;
-    }
-  }
-  inst = getClosestInstanceFromNode(node);
-  if (inst != null && inst._hostNode === node) {
-    return inst;
-  } else {
-    return null;
-  }
-}
 
-/**
- * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding
- * DOM node.
- */
-function getNodeFromInstance(inst) {
-  if (inst.tag === HostComponent || inst.tag === HostText) {
-    // In Fiber this, is just the state node right now. We assume it will be
-    // a host component or host text.
-    return inst.stateNode;
-  }
 
-  // Without this first invariant, passing a non-DOM-component triggers the next
-  // invariant for a missing parent, which is super confusing.
-  !(inst._hostNode !== undefined) ? invariant(false, 'getNodeFromInstance: Invalid argument.') : void 0;
 
-  if (inst._hostNode) {
-    return inst._hostNode;
-  }
 
-  // Walk up the tree until we find an ancestor whose DOM node we have cached.
-  var parents = [];
-  while (!inst._hostNode) {
-    parents.push(inst);
-    !inst._hostParent ? invariant(false, 'React DOM tree root should always have a node reference.') : void 0;
-    inst = inst._hostParent;
-  }
+var validateEventDispatches;
+{
+  validateEventDispatches = function (event) {
+    var dispatchListeners = event._dispatchListeners;
+    var dispatchInstances = event._dispatchInstances;
 
-  // Now parents contains each ancestor that does *not* have a cached native
-  // node, and `inst` is the deepest ancestor that does.
-  for (; parents.length; inst = parents.pop()) {
-    precacheChildNodes(inst, inst._hostNode);
-  }
+    var listenersIsArr = Array.isArray(dispatchListeners);
+    var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0;
+
+    var instancesIsArr = Array.isArray(dispatchInstances);
+    var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0;
 
-  return inst._hostNode;
+    warning(instancesIsArr === listenersIsArr && instancesLen === listenersLen, 'EventPluginUtils: Invalid `event`.');
+  };
 }
 
-function getFiberCurrentPropsFromNode(node) {
-  return node[internalEventHandlersKey] || null;
+/**
+ * Dispatch the event to the listener.
+ * @param {SyntheticEvent} event SyntheticEvent to handle
+ * @param {boolean} simulated If the event is simulated (changes exn behavior)
+ * @param {function} listener Application-level callback
+ * @param {*} inst Internal component instance
+ */
+function executeDispatch(event, simulated, listener, inst) {
+  var type = event.type || 'unknown-event';
+  event.currentTarget = getNodeFromInstance(inst);
+  ReactErrorUtils.invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event);
+  event.currentTarget = null;
 }
 
-function updateFiberProps$1(node, props) {
-  node[internalEventHandlersKey] = props;
+/**
+ * Standard/simple iteration through an event's collected dispatches.
+ */
+function executeDispatchesInOrder(event, simulated) {
+  var dispatchListeners = event._dispatchListeners;
+  var dispatchInstances = event._dispatchInstances;
+  {
+    validateEventDispatches(event);
+  }
+  if (Array.isArray(dispatchListeners)) {
+    for (var i = 0; i < dispatchListeners.length; i++) {
+      if (event.isPropagationStopped()) {
+        break;
+      }
+      // Listeners and Instances are two parallel arrays that are always in sync.
+      executeDispatch(event, simulated, dispatchListeners[i], dispatchInstances[i]);
+    }
+  } else if (dispatchListeners) {
+    executeDispatch(event, simulated, dispatchListeners, dispatchInstances);
+  }
+  event._dispatchListeners = null;
+  event._dispatchInstances = null;
 }
 
-var ReactDOMComponentTree = {
-  getClosestInstanceFromNode: getClosestInstanceFromNode,
-  getInstanceFromNode: getInstanceFromNode,
-  getNodeFromInstance: getNodeFromInstance,
-  precacheChildNodes: precacheChildNodes,
-  precacheNode: precacheNode,
-  uncacheNode: uncacheNode,
-  precacheFiberNode: precacheFiberNode$1,
-  getFiberCurrentPropsFromNode: getFiberCurrentPropsFromNode,
-  updateFiberProps: updateFiberProps$1
-};
+/**
+ * @see executeDispatchesInOrderStopAtTrueImpl
+ */
 
-var ReactDOMComponentTree_1 = ReactDOMComponentTree;
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * Execution of a "direct" dispatch - there must be at most one dispatch
+ * accumulated on the event or it is considered an error. It doesn't really make
+ * sense for an event with multiple dispatches (bubbled) to keep track of the
+ * return values at each dispatch execution, but it does tend to make sense when
+ * dealing with "direct" dispatches.
  *
- * @providesModule ReactInstanceMap
+ * @return {*} The return value of executing the single dispatch.
  */
 
+
 /**
- * `ReactInstanceMap` maintains a mapping from a public facing stateful
- * instance (key) and the internal representation (value). This allows public
- * methods to accept the user facing instance as an argument and map them back
- * to internal methods.
+ * @param {SyntheticEvent} event
+ * @return {boolean} True iff number of dispatches accumulated is greater than 0.
  */
 
-// TODO: Replace this with ES6: var ReactInstanceMap = new Map();
+/**
+ * Accumulates items that must not be null or undefined into the first one. This
+ * is used to conserve memory by avoiding array allocations, and thus sacrifices
+ * API cleanness. Since `current` can be null before being passed in and not
+ * null after this function, make sure to assign it back to `current`:
+ *
+ * `a = accumulateInto(a, b);`
+ *
+ * This API should be sparingly used. Try `accumulate` for something cleaner.
+ *
+ * @return {*|array<*>} An accumulation of items.
+ */
 
-var ReactInstanceMap = {
-  /**
-   * This API should be called `delete` but we'd have to make sure to always
-   * transform these to strings for IE support. When this transform is fully
-   * supported we can rename it.
-   */
-  remove: function (key) {
-    key._reactInternalFiber = undefined;
-  },
+function accumulateInto(current, next) {
+  !(next != null) ? invariant(false, 'accumulateInto(...): Accumulated items must not be null or undefined.') : void 0;
 
-  get: function (key) {
-    return key._reactInternalFiber;
-  },
+  if (current == null) {
+    return next;
+  }
 
-  has: function (key) {
-    return key._reactInternalFiber !== undefined;
-  },
+  // Both are not empty. Warning: Never call x.concat(y) when you are not
+  // certain that x is an Array (x could be a string with concat method).
+  if (Array.isArray(current)) {
+    if (Array.isArray(next)) {
+      current.push.apply(current, next);
+      return current;
+    }
+    current.push(next);
+    return current;
+  }
 
-  set: function (key, value) {
-    key._reactInternalFiber = value;
+  if (Array.isArray(next)) {
+    // A bit too dangerous to mutate `next`.
+    return [current].concat(next);
   }
-};
 
-var ReactInstanceMap_1 = ReactInstanceMap;
+  return [current, next];
+}
+
+/**
+ * @param {array} arr an "accumulation" of items which is either an Array or
+ * a single item. Useful when paired with the `accumulate` module. This is a
+ * simple utility that allows us to reason about a collection of items, but
+ * handling the case when there is exactly one item (and we do not need to
+ * allocate an array).
+ * @param {function} cb Callback invoked with each element or a collection.
+ * @param {?} [scope] Scope used as `this` in a callback.
+ */
+function forEachAccumulated(arr, cb, scope) {
+  if (Array.isArray(arr)) {
+    arr.forEach(cb, scope);
+  } else if (arr) {
+    cb.call(scope, arr);
+  }
+}
+
+/**
+ * Internal queue of events that have accumulated their dispatches and are
+ * waiting to have their dispatches executed.
+ */
+var eventQueue = null;
 
-var ReactInternals = react.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+/**
+ * Dispatches an event and releases it back into the pool, unless persistent.
+ *
+ * @param {?object} event Synthetic event to be dispatched.
+ * @param {boolean} simulated If the event is simulated (changes exn behavior)
+ * @private
+ */
+var executeDispatchesAndRelease = function (event, simulated) {
+  if (event) {
+    executeDispatchesInOrder(event, simulated);
 
-var ReactGlobalSharedState = {
-  ReactCurrentOwner: ReactInternals.ReactCurrentOwner
+    if (!event.isPersistent()) {
+      event.constructor.release(event);
+    }
+  }
+};
+var executeDispatchesAndReleaseSimulated = function (e) {
+  return executeDispatchesAndRelease(e, true);
+};
+var executeDispatchesAndReleaseTopLevel = function (e) {
+  return executeDispatchesAndRelease(e, false);
 };
 
-{
-  _assign(ReactGlobalSharedState, {
-    ReactComponentTreeHook: ReactInternals.ReactComponentTreeHook,
-    ReactDebugCurrentFrame: ReactInternals.ReactDebugCurrentFrame
-  });
+function isInteractive(tag) {
+  return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea';
 }
 
-var ReactGlobalSharedState_1 = ReactGlobalSharedState;
+function shouldPreventMouseEvent(name, type, props) {
+  switch (name) {
+    case 'onClick':
+    case 'onClickCapture':
+    case 'onDoubleClick':
+    case 'onDoubleClickCapture':
+    case 'onMouseDown':
+    case 'onMouseDownCapture':
+    case 'onMouseMove':
+    case 'onMouseMoveCapture':
+    case 'onMouseUp':
+    case 'onMouseUpCapture':
+      return !!(props.disabled && isInteractive(type));
+    default:
+      return false;
+  }
+}
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
+ * This is a unified interface for event plugins to be installed and configured.
  *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * Event plugins can implement the following properties:
  *
- * @providesModule getComponentName
- * 
+ *   `extractEvents` {function(string, DOMEventTarget, string, object): *}
+ *     Required. When a top-level event is fired, this method is expected to
+ *     extract synthetic events that will in turn be queued and dispatched.
+ *
+ *   `eventTypes` {object}
+ *     Optional, plugins that fire events must publish a mapping of registration
+ *     names that are used to register listeners. Values of this mapping must
+ *     be objects that contain `registrationName` or `phasedRegistrationNames`.
+ *
+ *   `executeDispatch` {function(object, function, string)}
+ *     Optional, allows plugins to override how an event gets dispatched. By
+ *     default, the listener is simply invoked.
+ *
+ * Each plugin that is injected into `EventsPluginHub` is immediately operable.
+ *
+ * @public
+ */
+
+/**
+ * Methods for injecting dependencies.
+ */
+var injection$1 = {
+  /**
+   * @param {array} InjectedEventPluginOrder
+   * @public
+   */
+  injectEventPluginOrder: injectEventPluginOrder,
+
+  /**
+   * @param {object} injectedNamesToPlugins Map from names to plugin modules.
+   */
+  injectEventPluginsByName: injectEventPluginsByName
+};
+
+/**
+ * @param {object} inst The instance, which is the source of events.
+ * @param {string} registrationName Name of listener (e.g. `onClick`).
+ * @return {?function} The stored callback.
  */
+function getListener(inst, registrationName) {
+  var listener;
 
-function getComponentName(instanceOrFiber) {
-  if (typeof instanceOrFiber.getName === 'function') {
-    // Stack reconciler
-    var instance = instanceOrFiber;
-    return instance.getName();
+  // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not
+  // live here; needs to be moved to a better place soon
+  var stateNode = inst.stateNode;
+  if (!stateNode) {
+    // Work in progress (ex: onload events in incremental mode).
+    return null;
   }
-  if (typeof instanceOrFiber.tag === 'number') {
-    // Fiber reconciler
-    var fiber = instanceOrFiber;
-    var type = fiber.type;
+  var props = getFiberCurrentPropsFromNode(stateNode);
+  if (!props) {
+    // Work in progress.
+    return null;
+  }
+  listener = props[registrationName];
+  if (shouldPreventMouseEvent(registrationName, inst.type, props)) {
+    return null;
+  }
+  !(!listener || typeof listener === 'function') ? invariant(false, 'Expected `%s` listener to be a function, instead got a value of `%s` type.', registrationName, typeof listener) : void 0;
+  return listener;
+}
 
-    if (typeof type === 'string') {
-      return type;
-    }
-    if (typeof type === 'function') {
-      return type.displayName || type.name;
+/**
+ * Allows registered plugins an opportunity to extract events from top-level
+ * native browser events.
+ *
+ * @return {*} An accumulation of synthetic events.
+ * @internal
+ */
+function extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+  var events;
+  for (var i = 0; i < plugins.length; i++) {
+    // Not every plugin in the ordering may be loaded at runtime.
+    var possiblePlugin = plugins[i];
+    if (possiblePlugin) {
+      var extractedEvents = possiblePlugin.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
+      if (extractedEvents) {
+        events = accumulateInto(events, extractedEvents);
+      }
     }
   }
-  return null;
+  return events;
 }
 
-var getComponentName_1 = getComponentName;
-
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
+ * Enqueues a synthetic event that should be dispatched when
+ * `processEventQueue` is invoked.
  *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * @param {*} events An accumulation of synthetic events.
+ * @internal
+ */
+function enqueueEvents(events) {
+  if (events) {
+    eventQueue = accumulateInto(eventQueue, events);
+  }
+}
+
+/**
+ * Dispatches all synthetic events on the event queue.
  *
- * @providesModule ReactTypeOfSideEffect
- * 
+ * @internal
  */
+function processEventQueue(simulated) {
+  // Set `eventQueue` to null before processing it so that we can tell if more
+  // events get enqueued while processing.
+  var processingEventQueue = eventQueue;
+  eventQueue = null;
 
-var ReactTypeOfSideEffect = {
-  // Don't change these two values:
-  NoEffect: 0, //           0b00000000
-  PerformedWork: 1, //      0b00000001
-  // You can change the rest (and add more).
-  Placement: 2, //          0b00000010
-  Update: 4, //             0b00000100
-  PlacementAndUpdate: 6, // 0b00000110
-  Deletion: 8, //           0b00001000
-  ContentReset: 16, //      0b00010000
-  Callback: 32, //          0b00100000
-  Err: 64, //               0b01000000
-  Ref: 128 };
+  if (!processingEventQueue) {
+    return;
+  }
 
-var ReactCurrentOwner = ReactGlobalSharedState_1.ReactCurrentOwner;
+  if (simulated) {
+    forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseSimulated);
+  } else {
+    forEachAccumulated(processingEventQueue, executeDispatchesAndReleaseTopLevel);
+  }
+  !!eventQueue ? invariant(false, 'processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented.') : void 0;
+  // This would be a good time to rethrow if any of the event handlers threw.
+  ReactErrorUtils.rethrowCaughtError();
+}
 
+var EventPluginHub = Object.freeze({
+	injection: injection$1,
+	getListener: getListener,
+	extractEvents: extractEvents,
+	enqueueEvents: enqueueEvents,
+	processEventQueue: processEventQueue
+});
 
+var IndeterminateComponent = 0; // Before we know whether it is functional or class
+var FunctionalComponent = 1;
+var ClassComponent = 2;
+var HostRoot = 3; // Root of a host tree. Could be nested inside another node.
+var HostPortal = 4; // A subtree. Could be an entry point to a different renderer.
+var HostComponent = 5;
+var HostText = 6;
+var CallComponent = 7;
+var CallHandlerPhase = 8;
+var ReturnComponent = 9;
+var Fragment = 10;
 
+var randomKey = Math.random().toString(36).slice(2);
+var internalInstanceKey = '__reactInternalInstance$' + randomKey;
+var internalEventHandlersKey = '__reactEventHandlers$' + randomKey;
 
-{
-  var warning$1 = require$$0;
+function precacheFiberNode$1(hostInst, node) {
+  node[internalInstanceKey] = hostInst;
 }
 
-var ClassComponent = ReactTypeOfWork.ClassComponent;
-var HostComponent$1 = ReactTypeOfWork.HostComponent;
-var HostRoot$1 = ReactTypeOfWork.HostRoot;
-var HostPortal = ReactTypeOfWork.HostPortal;
-var HostText$1 = ReactTypeOfWork.HostText;
-
-var NoEffect = ReactTypeOfSideEffect.NoEffect;
-var Placement = ReactTypeOfSideEffect.Placement;
-
-var MOUNTING = 1;
-var MOUNTED = 2;
-var UNMOUNTED = 3;
+/**
+ * Given a DOM node, return the closest ReactDOMComponent or
+ * ReactDOMTextComponent instance ancestor.
+ */
+function getClosestInstanceFromNode(node) {
+  if (node[internalInstanceKey]) {
+    return node[internalInstanceKey];
+  }
 
-function isFiberMountedImpl(fiber) {
-  var node = fiber;
-  if (!fiber.alternate) {
-    // If there is no alternate, this might be a new tree that isn't inserted
-    // yet. If it is, then it will have a pending insertion effect on it.
-    if ((node.effectTag & Placement) !== NoEffect) {
-      return MOUNTING;
-    }
-    while (node['return']) {
-      node = node['return'];
-      if ((node.effectTag & Placement) !== NoEffect) {
-        return MOUNTING;
-      }
-    }
-  } else {
-    while (node['return']) {
-      node = node['return'];
+  // Walk up the tree until we find an ancestor whose instance we have cached.
+  var parents = [];
+  while (!node[internalInstanceKey]) {
+    parents.push(node);
+    if (node.parentNode) {
+      node = node.parentNode;
+    } else {
+      // Top of the tree. This node must not be part of a React tree (or is
+      // unmounted, potentially).
+      return null;
     }
   }
-  if (node.tag === HostRoot$1) {
-    // TODO: Check if this was a nested HostRoot when used with
-    // renderContainerIntoSubtree.
-    return MOUNTED;
+
+  var closest = void 0;
+  var inst = node[internalInstanceKey];
+  if (inst.tag === HostComponent || inst.tag === HostText) {
+    // In Fiber, this will always be the deepest root.
+    return inst;
   }
-  // If we didn't hit the root, that means that we're in an disconnected tree
-  // that has been unmounted.
-  return UNMOUNTED;
+  for (; node && (inst = node[internalInstanceKey]); node = parents.pop()) {
+    closest = inst;
+  }
+
+  return closest;
 }
-var isFiberMounted = function (fiber) {
-  return isFiberMountedImpl(fiber) === MOUNTED;
-};
 
-var isMounted = function (component) {
-  {
-    var owner = ReactCurrentOwner.current;
-    if (owner !== null && owner.tag === ClassComponent) {
-      var ownerFiber = owner;
-      var instance = ownerFiber.stateNode;
-      warning$1(instance._warnedAboutRefsInRender, '%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName_1(ownerFiber) || 'A component');
-      instance._warnedAboutRefsInRender = true;
+/**
+ * Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent
+ * instance, or null if the node was not rendered by this React.
+ */
+function getInstanceFromNode$1(node) {
+  var inst = node[internalInstanceKey];
+  if (inst) {
+    if (inst.tag === HostComponent || inst.tag === HostText) {
+      return inst;
+    } else {
+      return null;
     }
   }
+  return null;
+}
 
-  var fiber = ReactInstanceMap_1.get(component);
-  if (!fiber) {
-    return false;
+/**
+ * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding
+ * DOM node.
+ */
+function getNodeFromInstance$1(inst) {
+  if (inst.tag === HostComponent || inst.tag === HostText) {
+    // In Fiber this, is just the state node right now. We assume it will be
+    // a host component or host text.
+    return inst.stateNode;
   }
-  return isFiberMountedImpl(fiber) === MOUNTED;
-};
 
-function assertIsMounted(fiber) {
-  !(isFiberMountedImpl(fiber) === MOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
+  // Without this first invariant, passing a non-DOM-component triggers the next
+  // invariant for a missing parent, which is super confusing.
+  invariant(false, 'getNodeFromInstance: Invalid argument.');
 }
 
-function findCurrentFiberUsingSlowPath(fiber) {
-  var alternate = fiber.alternate;
-  if (!alternate) {
-    // If there is no alternate, then we only need to check if it is mounted.
-    var state = isFiberMountedImpl(fiber);
-    !(state !== UNMOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
-    if (state === MOUNTING) {
-      return null;
-    }
-    return fiber;
+function getFiberCurrentPropsFromNode$1(node) {
+  return node[internalEventHandlersKey] || null;
+}
+
+function updateFiberProps$1(node, props) {
+  node[internalEventHandlersKey] = props;
+}
+
+var ReactDOMComponentTree = Object.freeze({
+	precacheFiberNode: precacheFiberNode$1,
+	getClosestInstanceFromNode: getClosestInstanceFromNode,
+	getInstanceFromNode: getInstanceFromNode$1,
+	getNodeFromInstance: getNodeFromInstance$1,
+	getFiberCurrentPropsFromNode: getFiberCurrentPropsFromNode$1,
+	updateFiberProps: updateFiberProps$1
+});
+
+function getParent(inst) {
+  do {
+    inst = inst['return'];
+    // TODO: If this is a HostRoot we might want to bail out.
+    // That is depending on if we want nested subtrees (layers) to bubble
+    // events to their parent. We could also go through parentNode on the
+    // host node but that wouldn't work for React Native and doesn't let us
+    // do the portal feature.
+  } while (inst && inst.tag !== HostComponent);
+  if (inst) {
+    return inst;
   }
-  // If we have two possible branches, we'll walk backwards up to the root
-  // to see what path the root points to. On the way we may hit one of the
-  // special cases and we'll deal with them.
-  var a = fiber;
-  var b = alternate;
-  while (true) {
-    var parentA = a['return'];
-    var parentB = parentA ? parentA.alternate : null;
-    if (!parentA || !parentB) {
-      // We're at the root.
-      break;
-    }
+  return null;
+}
 
-    // If both copies of the parent fiber point to the same child, we can
-    // assume that the child is current. This happens when we bailout on low
-    // priority: the bailed out fiber's child reuses the current child.
-    if (parentA.child === parentB.child) {
-      var child = parentA.child;
-      while (child) {
-        if (child === a) {
-          // We've determined that A is the current branch.
-          assertIsMounted(parentA);
-          return fiber;
-        }
-        if (child === b) {
-          // We've determined that B is the current branch.
-          assertIsMounted(parentA);
-          return alternate;
-        }
-        child = child.sibling;
-      }
-      // We should never have an alternate for any mounting node. So the only
-      // way this could possibly happen is if this was unmounted, if at all.
-      invariant(false, 'Unable to find node on an unmounted component.');
-    }
+/**
+ * Return the lowest common ancestor of A and B, or null if they are in
+ * different trees.
+ */
+function getLowestCommonAncestor(instA, instB) {
+  var depthA = 0;
+  for (var tempA = instA; tempA; tempA = getParent(tempA)) {
+    depthA++;
+  }
+  var depthB = 0;
+  for (var tempB = instB; tempB; tempB = getParent(tempB)) {
+    depthB++;
+  }
 
-    if (a['return'] !== b['return']) {
-      // The return pointer of A and the return pointer of B point to different
-      // fibers. We assume that return pointers never criss-cross, so A must
-      // belong to the child set of A.return, and B must belong to the child
-      // set of B.return.
-      a = parentA;
-      b = parentB;
-    } else {
-      // The return pointers point to the same fiber. We'll have to use the
-      // default, slow path: scan the child sets of each parent alternate to see
-      // which child belongs to which set.
-      //
-      // Search parent A's child set
-      var didFindChild = false;
-      var _child = parentA.child;
-      while (_child) {
-        if (_child === a) {
-          didFindChild = true;
-          a = parentA;
-          b = parentB;
-          break;
-        }
-        if (_child === b) {
-          didFindChild = true;
-          b = parentA;
-          a = parentB;
-          break;
-        }
-        _child = _child.sibling;
-      }
-      if (!didFindChild) {
-        // Search parent B's child set
-        _child = parentB.child;
-        while (_child) {
-          if (_child === a) {
-            didFindChild = true;
-            a = parentB;
-            b = parentA;
-            break;
-          }
-          if (_child === b) {
-            didFindChild = true;
-            b = parentB;
-            a = parentA;
-            break;
-          }
-          _child = _child.sibling;
-        }
-        !didFindChild ? invariant(false, 'Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue.') : void 0;
-      }
-    }
+  // If A is deeper, crawl up.
+  while (depthA - depthB > 0) {
+    instA = getParent(instA);
+    depthA--;
+  }
 
-    !(a.alternate === b) ? invariant(false, 'Return fibers should always be each others\' alternates. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+  // If B is deeper, crawl up.
+  while (depthB - depthA > 0) {
+    instB = getParent(instB);
+    depthB--;
   }
-  // If the root is not a host container, we're in a disconnected tree. I.e.
-  // unmounted.
-  !(a.tag === HostRoot$1) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
-  if (a.stateNode.current === a) {
-    // We've determined that A is the current branch.
-    return fiber;
+
+  // Walk in lockstep until we find a match.
+  var depth = depthA;
+  while (depth--) {
+    if (instA === instB || instA === instB.alternate) {
+      return instA;
+    }
+    instA = getParent(instA);
+    instB = getParent(instB);
   }
-  // Otherwise B has to be current branch.
-  return alternate;
+  return null;
 }
-var findCurrentFiberUsingSlowPath_1 = findCurrentFiberUsingSlowPath;
 
-var findCurrentHostFiber = function (parent) {
-  var currentParent = findCurrentFiberUsingSlowPath(parent);
-  if (!currentParent) {
-    return null;
+/**
+ * Return if A is an ancestor of B.
+ */
+
+
+/**
+ * Return the parent instance of the passed-in instance.
+ */
+function getParentInstance(inst) {
+  return getParent(inst);
+}
+
+/**
+ * Simulates the traversal of a two-phase, capture/bubble event dispatch.
+ */
+function traverseTwoPhase(inst, fn, arg) {
+  var path = [];
+  while (inst) {
+    path.push(inst);
+    inst = getParent(inst);
+  }
+  var i;
+  for (i = path.length; i-- > 0;) {
+    fn(path[i], 'captured', arg);
+  }
+  for (i = 0; i < path.length; i++) {
+    fn(path[i], 'bubbled', arg);
   }
+}
 
-  // Next we'll drill down this component to find the first HostComponent/Text.
-  var node = currentParent;
+/**
+ * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that
+ * should would receive a `mouseEnter` or `mouseLeave` event.
+ *
+ * Does not invoke the callback on the nearest common ancestor because nothing
+ * "entered" or "left" that element.
+ */
+function traverseEnterLeave(from, to, fn, argFrom, argTo) {
+  var common = from && to ? getLowestCommonAncestor(from, to) : null;
+  var pathFrom = [];
   while (true) {
-    if (node.tag === HostComponent$1 || node.tag === HostText$1) {
-      return node;
-    } else if (node.child) {
-      node.child['return'] = node;
-      node = node.child;
-      continue;
+    if (!from) {
+      break;
     }
-    if (node === currentParent) {
-      return null;
+    if (from === common) {
+      break;
     }
-    while (!node.sibling) {
-      if (!node['return'] || node['return'] === currentParent) {
-        return null;
-      }
-      node = node['return'];
+    var alternate = from.alternate;
+    if (alternate !== null && alternate === common) {
+      break;
     }
-    node.sibling['return'] = node['return'];
-    node = node.sibling;
-  }
-  // Flow needs the return null here, but ESLint complains about it.
-  // eslint-disable-next-line no-unreachable
-  return null;
-};
-
-var findCurrentHostFiberWithNoPortals = function (parent) {
-  var currentParent = findCurrentFiberUsingSlowPath(parent);
-  if (!currentParent) {
-    return null;
+    pathFrom.push(from);
+    from = getParent(from);
   }
-
-  // Next we'll drill down this component to find the first HostComponent/Text.
-  var node = currentParent;
+  var pathTo = [];
   while (true) {
-    if (node.tag === HostComponent$1 || node.tag === HostText$1) {
-      return node;
-    } else if (node.child && node.tag !== HostPortal) {
-      node.child['return'] = node;
-      node = node.child;
-      continue;
+    if (!to) {
+      break;
     }
-    if (node === currentParent) {
-      return null;
+    if (to === common) {
+      break;
     }
-    while (!node.sibling) {
-      if (!node['return'] || node['return'] === currentParent) {
-        return null;
-      }
-      node = node['return'];
+    var _alternate = to.alternate;
+    if (_alternate !== null && _alternate === common) {
+      break;
     }
-    node.sibling['return'] = node['return'];
-    node = node.sibling;
+    pathTo.push(to);
+    to = getParent(to);
   }
-  // Flow needs the return null here, but ESLint complains about it.
-  // eslint-disable-next-line no-unreachable
-  return null;
-};
-
-var ReactFiberTreeReflection = {
-	isFiberMounted: isFiberMounted,
-	isMounted: isMounted,
-	findCurrentFiberUsingSlowPath: findCurrentFiberUsingSlowPath_1,
-	findCurrentHostFiber: findCurrentHostFiber,
-	findCurrentHostFiberWithNoPortals: findCurrentHostFiberWithNoPortals
-};
-
-var ReactErrorUtils = {
-  // Used by Fiber to simulate a try-catch.
-  _caughtError: null,
-  _hasCaughtError: false,
+  for (var i = 0; i < pathFrom.length; i++) {
+    fn(pathFrom[i], 'bubbled', argFrom);
+  }
+  for (var _i = pathTo.length; _i-- > 0;) {
+    fn(pathTo[_i], 'captured', argTo);
+  }
+}
 
-  // Used by event system to capture/rethrow the first error.
-  _rethrowError: null,
-  _hasRethrowError: false,
-
-  injection: {
-    injectErrorUtils: function (injectedErrorUtils) {
-      !(typeof injectedErrorUtils.invokeGuardedCallback === 'function') ? invariant(false, 'Injected invokeGuardedCallback() must be a function.') : void 0;
-      invokeGuardedCallback = injectedErrorUtils.invokeGuardedCallback;
-    }
-  },
-
-  /**
-   * Call a function while guarding against errors that happens within it.
-   * Returns an error if it throws, otherwise null.
-   *
-   * In production, this is implemented using a try-catch. The reason we don't
-   * use a try-catch directly is so that we can swap out a different
-   * implementation in DEV mode.
-   *
-   * @param {String} name of the guard to use for logging or debugging
-   * @param {Function} func The function to invoke
-   * @param {*} context The context to use when calling the function
-   * @param {...*} args Arguments for function
-   */
-  invokeGuardedCallback: function (name, func, context, a, b, c, d, e, f) {
-    invokeGuardedCallback.apply(ReactErrorUtils, arguments);
-  },
-
-  /**
-   * Same as invokeGuardedCallback, but instead of returning an error, it stores
-   * it in a global so it can be rethrown by `rethrowCaughtError` later.
-   * TODO: See if _caughtError and _rethrowError can be unified.
-   *
-   * @param {String} name of the guard to use for logging or debugging
-   * @param {Function} func The function to invoke
-   * @param {*} context The context to use when calling the function
-   * @param {...*} args Arguments for function
-   */
-  invokeGuardedCallbackAndCatchFirstError: function (name, func, context, a, b, c, d, e, f) {
-    ReactErrorUtils.invokeGuardedCallback.apply(this, arguments);
-    if (ReactErrorUtils.hasCaughtError()) {
-      var error = ReactErrorUtils.clearCaughtError();
-      if (!ReactErrorUtils._hasRethrowError) {
-        ReactErrorUtils._hasRethrowError = true;
-        ReactErrorUtils._rethrowError = error;
-      }
-    }
-  },
-
-  /**
-   * During execution of guarded functions we will capture the first error which
-   * we will rethrow to be handled by the top level error handler.
-   */
-  rethrowCaughtError: function () {
-    return rethrowCaughtError.apply(ReactErrorUtils, arguments);
-  },
-
-  hasCaughtError: function () {
-    return ReactErrorUtils._hasCaughtError;
-  },
+/**
+ * Some event types have a notion of different registration names for different
+ * "phases" of propagation. This finds listeners by a given phase.
+ */
+function listenerAtPhase(inst, event, propagationPhase) {
+  var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase];
+  return getListener(inst, registrationName);
+}
 
-  clearCaughtError: function () {
-    if (ReactErrorUtils._hasCaughtError) {
-      var error = ReactErrorUtils._caughtError;
-      ReactErrorUtils._caughtError = null;
-      ReactErrorUtils._hasCaughtError = false;
-      return error;
-    } else {
-      invariant(false, 'clearCaughtError was called but no error was captured. This error is likely caused by a bug in React. Please file an issue.');
-    }
-  }
-};
+/**
+ * A small set of propagation patterns, each of which will accept a small amount
+ * of information, and generate a set of "dispatch ready event objects" - which
+ * are sets of events that have already been annotated with a set of dispatched
+ * listener functions/ids. The API is designed this way to discourage these
+ * propagation strategies from actually executing the dispatches, since we
+ * always want to collect the entire set of dispatches before executing even a
+ * single one.
+ */
 
-var invokeGuardedCallback = function (name, func, context, a, b, c, d, e, f) {
-  ReactErrorUtils._hasCaughtError = false;
-  ReactErrorUtils._caughtError = null;
-  var funcArgs = Array.prototype.slice.call(arguments, 3);
-  try {
-    func.apply(context, funcArgs);
-  } catch (error) {
-    ReactErrorUtils._caughtError = error;
-    ReactErrorUtils._hasCaughtError = true;
+/**
+ * Tags a `SyntheticEvent` with dispatched listeners. Creating this function
+ * here, allows us to not have to bind or create functions for each event.
+ * Mutating the event's members allows us to not have to create a wrapping
+ * "dispatch" object that pairs the event with the listener.
+ */
+function accumulateDirectionalDispatches(inst, phase, event) {
+  {
+    warning(inst, 'Dispatching inst must not be null');
   }
-};
-
-{
-  // In DEV mode, we swap out invokeGuardedCallback for a special version
-  // that plays more nicely with the browser's DevTools. The idea is to preserve
-  // "Pause on exceptions" behavior. Because React wraps all user-provided
-  // functions in invokeGuardedCallback, and the production version of
-  // invokeGuardedCallback uses a try-catch, all user exceptions are treated
-  // like caught exceptions, and the DevTools won't pause unless the developer
-  // takes the extra step of enabling pause on caught exceptions. This is
-  // untintuitive, though, because even though React has caught the error, from
-  // the developer's perspective, the error is uncaught.
-  //
-  // To preserve the expected "Pause on exceptions" behavior, we don't use a
-  // try-catch in DEV. Instead, we synchronously dispatch a fake event to a fake
-  // DOM node, and call the user-provided callback from inside an event handler
-  // for that fake event. If the callback throws, the error is "captured" using
-  // a global event handler. But because the error happens in a different
-  // event loop context, it does not interrupt the normal program flow.
-  // Effectively, this gives us try-catch behavior without actually using
-  // try-catch. Neat!
-
-  // Check that the browser supports the APIs we need to implement our special
-  // DEV version of invokeGuardedCallback
-  if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function' && typeof document !== 'undefined' && typeof document.createEvent === 'function') {
-    var fakeNode = document.createElement('react');
-
-    var invokeGuardedCallbackDev = function (name, func, context, a, b, c, d, e, f) {
-      // Keeps track of whether the user-provided callback threw an error. We
-      // set this to true at the beginning, then set it to false right after
-      // calling the function. If the function errors, `didError` will never be
-      // set to false. This strategy works even if the browser is flaky and
-      // fails to call our global error handler, because it doesn't rely on
-      // the error event at all.
-      var didError = true;
-
-      // Create an event handler for our fake event. We will synchronously
-      // dispatch our fake event using `dispatchEvent`. Inside the handler, we
-      // call the user-provided callback.
-      var funcArgs = Array.prototype.slice.call(arguments, 3);
-      function callCallback() {
-        // We immediately remove the callback from event listeners so that
-        // nested `invokeGuardedCallback` calls do not clash. Otherwise, a
-        // nested call would trigger the fake event handlers of any call higher
-        // in the stack.
-        fakeNode.removeEventListener(evtType, callCallback, false);
-        func.apply(context, funcArgs);
-        didError = false;
-      }
-
-      // Create a global error event handler. We use this to capture the value
-      // that was thrown. It's possible that this error handler will fire more
-      // than once; for example, if non-React code also calls `dispatchEvent`
-      // and a handler for that event throws. We should be resilient to most of
-      // those cases. Even if our error event handler fires more than once, the
-      // last error event is always used. If the callback actually does error,
-      // we know that the last error event is the correct one, because it's not
-      // possible for anything else to have happened in between our callback
-      // erroring and the code that follows the `dispatchEvent` call below. If
-      // the callback doesn't error, but the error event was fired, we know to
-      // ignore it because `didError` will be false, as described above.
-      var error = void 0;
-      // Use this to track whether the error event is ever called.
-      var didSetError = false;
-      var isCrossOriginError = false;
-
-      function onError(event) {
-        error = event.error;
-        didSetError = true;
-        if (error === null && event.colno === 0 && event.lineno === 0) {
-          isCrossOriginError = true;
-        }
-      }
-
-      // Create a fake event type.
-      var evtType = 'react-' + (name ? name : 'invokeguardedcallback');
-
-      // Attach our event handlers
-      window.addEventListener('error', onError);
-      fakeNode.addEventListener(evtType, callCallback, false);
-
-      // Synchronously dispatch our fake event. If the user-provided function
-      // errors, it will trigger our global error handler.
-      var evt = document.createEvent('Event');
-      evt.initEvent(evtType, false, false);
-      fakeNode.dispatchEvent(evt);
-
-      if (didError) {
-        if (!didSetError) {
-          // The callback errored, but the error event never fired.
-          error = new Error('An error was thrown inside one of your components, but React ' + "doesn't know what it was. This is likely due to browser " + 'flakiness. React does its best to preserve the "Pause on ' + 'exceptions" behavior of the DevTools, which requires some ' + "DEV-mode only tricks. It's possible that these don't work in " + 'your browser. Try triggering the error in production mode, ' + 'or switching to a modern browser. If you suspect that this is ' + 'actually an issue with React, please file an issue.');
-        } else if (isCrossOriginError) {
-          error = new Error("A cross-origin error was thrown. React doesn't have access to " + 'the actual error object in development. ' + 'See https://fb.me/react-crossorigin-error for more information.');
-        }
-        ReactErrorUtils._hasCaughtError = true;
-        ReactErrorUtils._caughtError = error;
-      } else {
-        ReactErrorUtils._hasCaughtError = false;
-        ReactErrorUtils._caughtError = null;
-      }
-
-      // Remove our event listeners
-      window.removeEventListener('error', onError);
-    };
-
-    invokeGuardedCallback = invokeGuardedCallbackDev;
+  var listener = listenerAtPhase(inst, event, phase);
+  if (listener) {
+    event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
+    event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
   }
 }
 
-var rethrowCaughtError = function () {
-  if (ReactErrorUtils._hasRethrowError) {
-    var error = ReactErrorUtils._rethrowError;
-    ReactErrorUtils._rethrowError = null;
-    ReactErrorUtils._hasRethrowError = false;
-    throw error;
+/**
+ * Collect dispatches (must be entirely collected before dispatching - see unit
+ * tests). Lazily allocate the array to conserve memory.  We must loop through
+ * each event and perform the traversal for each one. We cannot perform a
+ * single traversal for the entire collection of events because each event may
+ * have a different target.
+ */
+function accumulateTwoPhaseDispatchesSingle(event) {
+  if (event && event.dispatchConfig.phasedRegistrationNames) {
+    traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event);
   }
-};
-
-var ReactErrorUtils_1 = ReactErrorUtils;
-
-{
-  var warning$2 = require$$0;
 }
 
 /**
- * Injected dependencies:
+ * Same as `accumulateTwoPhaseDispatchesSingle`, but skips over the targetID.
  */
+function accumulateTwoPhaseDispatchesSingleSkipTarget(event) {
+  if (event && event.dispatchConfig.phasedRegistrationNames) {
+    var targetInst = event._targetInst;
+    var parentInst = targetInst ? getParentInstance(targetInst) : null;
+    traverseTwoPhase(parentInst, accumulateDirectionalDispatches, event);
+  }
+}
 
 /**
- * - `ComponentTree`: [required] Module that can convert between React instances
- *   and actual node references.
+ * Accumulates without regard to direction, does not look for phased
+ * registration names. Same as `accumulateDirectDispatchesSingle` but without
+ * requiring that the `dispatchMarker` be the same as the dispatched ID.
  */
-var ComponentTree;
-var injection = {
-  injectComponentTree: function (Injected) {
-    ComponentTree = Injected;
-    {
-      warning$2(Injected && Injected.getNodeFromInstance && Injected.getInstanceFromNode, 'EventPluginUtils.injection.injectComponentTree(...): Injected ' + 'module is missing getNodeFromInstance or getInstanceFromNode.');
+function accumulateDispatches(inst, ignoredDirection, event) {
+  if (inst && event && event.dispatchConfig.registrationName) {
+    var registrationName = event.dispatchConfig.registrationName;
+    var listener = getListener(inst, registrationName);
+    if (listener) {
+      event._dispatchListeners = accumulateInto(event._dispatchListeners, listener);
+      event._dispatchInstances = accumulateInto(event._dispatchInstances, inst);
     }
   }
-};
-
-function isEndish(topLevelType) {
-  return topLevelType === 'topMouseUp' || topLevelType === 'topTouchEnd' || topLevelType === 'topTouchCancel';
-}
-
-function isMoveish(topLevelType) {
-  return topLevelType === 'topMouseMove' || topLevelType === 'topTouchMove';
-}
-function isStartish(topLevelType) {
-  return topLevelType === 'topMouseDown' || topLevelType === 'topTouchStart';
-}
-
-var validateEventDispatches;
-{
-  validateEventDispatches = function (event) {
-    var dispatchListeners = event._dispatchListeners;
-    var dispatchInstances = event._dispatchInstances;
-
-    var listenersIsArr = Array.isArray(dispatchListeners);
-    var listenersLen = listenersIsArr ? dispatchListeners.length : dispatchListeners ? 1 : 0;
-
-    var instancesIsArr = Array.isArray(dispatchInstances);
-    var instancesLen = instancesIsArr ? dispatchInstances.length : dispatchInstances ? 1 : 0;
-
-    warning$2(instancesIsArr === listenersIsArr && instancesLen === listenersLen, 'EventPluginUtils: Invalid `event`.');
-  };
 }
 
 /**
- * Dispatch the event to the listener.
- * @param {SyntheticEvent} event SyntheticEvent to handle
- * @param {boolean} simulated If the event is simulated (changes exn behavior)
- * @param {function} listener Application-level callback
- * @param {*} inst Internal component instance
+ * Accumulates dispatches on an `SyntheticEvent`, but only for the
+ * `dispatchMarker`.
+ * @param {SyntheticEvent} event
  */
-function executeDispatch(event, simulated, listener, inst) {
-  var type = event.type || 'unknown-event';
-  event.currentTarget = EventPluginUtils.getNodeFromInstance(inst);
-  ReactErrorUtils_1.invokeGuardedCallbackAndCatchFirstError(type, listener, undefined, event);
-  event.currentTarget = null;
+function accumulateDirectDispatchesSingle(event) {
+  if (event && event.dispatchConfig.registrationName) {
+    accumulateDispatches(event._targetInst, null, event);
+  }
 }
 
-/**
- * Standard/simple iteration through an event's collected dispatches.
- */
-function executeDispatchesInOrder(event, simulated) {
-  var dispatchListeners = event._dispatchListeners;
-  var dispatchInstances = event._dispatchInstances;
-  {
-    validateEventDispatches(event);
-  }
-  if (Array.isArray(dispatchListeners)) {
-    for (var i = 0; i < dispatchListeners.length; i++) {
-      if (event.isPropagationStopped()) {
-        break;
-      }
-      // Listeners and Instances are two parallel arrays that are always in sync.
-      executeDispatch(event, simulated, dispatchListeners[i], dispatchInstances[i]);
-    }
-  } else if (dispatchListeners) {
-    executeDispatch(event, simulated, dispatchListeners, dispatchInstances);
-  }
-  event._dispatchListeners = null;
-  event._dispatchInstances = null;
+function accumulateTwoPhaseDispatches(events) {
+  forEachAccumulated(events, accumulateTwoPhaseDispatchesSingle);
 }
 
-/**
- * Standard/simple iteration through an event's collected dispatches, but stops
- * at the first dispatch execution returning true, and returns that id.
- *
- * @return {?string} id of the first dispatch execution who's listener returns
- * true, or null if no listener returned true.
- */
-function executeDispatchesInOrderStopAtTrueImpl(event) {
-  var dispatchListeners = event._dispatchListeners;
-  var dispatchInstances = event._dispatchInstances;
-  {
-    validateEventDispatches(event);
-  }
-  if (Array.isArray(dispatchListeners)) {
-    for (var i = 0; i < dispatchListeners.length; i++) {
-      if (event.isPropagationStopped()) {
-        break;
-      }
-      // Listeners and Instances are two parallel arrays that are always in sync.
-      if (dispatchListeners[i](event, dispatchInstances[i])) {
-        return dispatchInstances[i];
-      }
-    }
-  } else if (dispatchListeners) {
-    if (dispatchListeners(event, dispatchInstances)) {
-      return dispatchInstances;
-    }
-  }
-  return null;
+function accumulateTwoPhaseDispatchesSkipTarget(events) {
+  forEachAccumulated(events, accumulateTwoPhaseDispatchesSingleSkipTarget);
 }
 
-/**
- * @see executeDispatchesInOrderStopAtTrueImpl
- */
-function executeDispatchesInOrderStopAtTrue(event) {
-  var ret = executeDispatchesInOrderStopAtTrueImpl(event);
-  event._dispatchInstances = null;
-  event._dispatchListeners = null;
-  return ret;
+function accumulateEnterLeaveDispatches(leave, enter, from, to) {
+  traverseEnterLeave(from, to, accumulateDispatches, leave, enter);
 }
 
-/**
- * Execution of a "direct" dispatch - there must be at most one dispatch
- * accumulated on the event or it is considered an error. It doesn't really make
- * sense for an event with multiple dispatches (bubbled) to keep track of the
- * return values at each dispatch execution, but it does tend to make sense when
- * dealing with "direct" dispatches.
- *
- * @return {*} The return value of executing the single dispatch.
- */
-function executeDirectDispatch(event) {
-  {
-    validateEventDispatches(event);
-  }
-  var dispatchListener = event._dispatchListeners;
-  var dispatchInstance = event._dispatchInstances;
-  !!Array.isArray(dispatchListener) ? invariant(false, 'executeDirectDispatch(...): Invalid `event`.') : void 0;
-  event.currentTarget = dispatchListener ? EventPluginUtils.getNodeFromInstance(dispatchInstance) : null;
-  var res = dispatchListener ? dispatchListener(event) : null;
-  event.currentTarget = null;
-  event._dispatchListeners = null;
-  event._dispatchInstances = null;
-  return res;
+function accumulateDirectDispatches(events) {
+  forEachAccumulated(events, accumulateDirectDispatchesSingle);
 }
 
+var EventPropagators = Object.freeze({
+	accumulateTwoPhaseDispatches: accumulateTwoPhaseDispatches,
+	accumulateTwoPhaseDispatchesSkipTarget: accumulateTwoPhaseDispatchesSkipTarget,
+	accumulateEnterLeaveDispatches: accumulateEnterLeaveDispatches,
+	accumulateDirectDispatches: accumulateDirectDispatches
+});
+
+var contentKey = null;
+
 /**
- * @param {SyntheticEvent} event
- * @return {boolean} True iff number of dispatches accumulated is greater than 0.
+ * Gets the key used to access text content on a DOM node.
+ *
+ * @return {?string} Key used to access text content.
+ * @internal
  */
-function hasDispatches(event) {
-  return !!event._dispatchListeners;
+function getTextContentAccessor() {
+  if (!contentKey && ExecutionEnvironment.canUseDOM) {
+    // Prefer textContent to innerText because many browsers support both but
+    // SVG <text> elements don't support innerText even when <div> does.
+    contentKey = 'textContent' in document.documentElement ? 'textContent' : 'innerText';
+  }
+  return contentKey;
 }
 
 /**
- * General utilities that are useful in creating custom Event Plugins.
+ * This helper object stores information about text content of a target node,
+ * allowing comparison of content before and after a given event.
+ *
+ * Identify the node where selection currently begins, then observe
+ * both its text content and its current position in the DOM. Since the
+ * browser may natively replace the target node during composition, we can
+ * use its position to find its replacement.
+ *
+ *
  */
-var EventPluginUtils = {
-  isEndish: isEndish,
-  isMoveish: isMoveish,
-  isStartish: isStartish,
-
-  executeDirectDispatch: executeDirectDispatch,
-  executeDispatchesInOrder: executeDispatchesInOrder,
-  executeDispatchesInOrderStopAtTrue: executeDispatchesInOrderStopAtTrue,
-  hasDispatches: hasDispatches,
-
-  getFiberCurrentPropsFromNode: function (node) {
-    return ComponentTree.getFiberCurrentPropsFromNode(node);
-  },
-  getInstanceFromNode: function (node) {
-    return ComponentTree.getInstanceFromNode(node);
-  },
-  getNodeFromInstance: function (node) {
-    return ComponentTree.getNodeFromInstance(node);
-  },
-
-  injection: injection
+var compositionState = {
+  _root: null,
+  _startText: null,
+  _fallbackText: null
 };
 
-var EventPluginUtils_1 = EventPluginUtils;
-
-// Use to restore controlled state after a change event has fired.
-
-var fiberHostComponent = null;
-
-var ReactControlledComponentInjection = {
-  injectFiberControlledHostComponent: function (hostComponentImpl) {
-    // The fiber implementation doesn't use dynamic dispatch so we need to
-    // inject the implementation.
-    fiberHostComponent = hostComponentImpl;
-  }
-};
+function initialize(nativeEventTarget) {
+  compositionState._root = nativeEventTarget;
+  compositionState._startText = getText();
+  return true;
+}
 
-var restoreTarget = null;
-var restoreQueue = null;
+function reset() {
+  compositionState._root = null;
+  compositionState._startText = null;
+  compositionState._fallbackText = null;
+}
 
-function restoreStateOfTarget(target) {
-  // We perform this translation at the end of the event loop so that we
-  // always receive the correct fiber here
-  var internalInstance = EventPluginUtils_1.getInstanceFromNode(target);
-  if (!internalInstance) {
-    // Unmounted
-    return;
-  }
-  if (typeof internalInstance.tag === 'number') {
-    !(fiberHostComponent && typeof fiberHostComponent.restoreControlledState === 'function') ? invariant(false, 'Fiber needs to be injected to handle a fiber target for controlled events. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-    var props = EventPluginUtils_1.getFiberCurrentPropsFromNode(internalInstance.stateNode);
-    fiberHostComponent.restoreControlledState(internalInstance.stateNode, internalInstance.type, props);
-    return;
+function getData() {
+  if (compositionState._fallbackText) {
+    return compositionState._fallbackText;
   }
-  !(typeof internalInstance.restoreControlledState === 'function') ? invariant(false, 'The internal instance must be a React host component. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-  // If it is not a Fiber, we can just use dynamic dispatch.
-  internalInstance.restoreControlledState();
-}
 
-var ReactControlledComponent = {
-  injection: ReactControlledComponentInjection,
+  var start;
+  var startValue = compositionState._startText;
+  var startLength = startValue.length;
+  var end;
+  var endValue = getText();
+  var endLength = endValue.length;
 
-  enqueueStateRestore: function (target) {
-    if (restoreTarget) {
-      if (restoreQueue) {
-        restoreQueue.push(target);
-      } else {
-        restoreQueue = [target];
-      }
-    } else {
-      restoreTarget = target;
-    }
-  },
-  restoreStateIfNeeded: function () {
-    if (!restoreTarget) {
-      return;
+  for (start = 0; start < startLength; start++) {
+    if (startValue[start] !== endValue[start]) {
+      break;
     }
-    var target = restoreTarget;
-    var queuedTargets = restoreQueue;
-    restoreTarget = null;
-    restoreQueue = null;
+  }
 
-    restoreStateOfTarget(target);
-    if (queuedTargets) {
-      for (var i = 0; i < queuedTargets.length; i++) {
-        restoreStateOfTarget(queuedTargets[i]);
-      }
+  var minEnd = startLength - start;
+  for (end = 1; end <= minEnd; end++) {
+    if (startValue[startLength - end] !== endValue[endLength - end]) {
+      break;
     }
   }
-};
-
-var ReactControlledComponent_1 = ReactControlledComponent;
-
-// Used as a way to call batchedUpdates when we don't know if we're in a Fiber
-// or Stack context. Such as when we're dispatching events or if third party
-// libraries need to call batchedUpdates. Eventually, this API will go away when
-// everything is batched by default. We'll then have a similar API to opt-out of
-// scheduled work and instead do synchronous work.
-
-// Defaults
-var stackBatchedUpdates = function (fn, a, b, c, d, e) {
-  return fn(a, b, c, d, e);
-};
-var fiberBatchedUpdates = function (fn, bookkeeping) {
-  return fn(bookkeeping);
-};
 
-function performFiberBatchedUpdates(fn, bookkeeping) {
-  // If we have Fiber loaded, we need to wrap this in a batching call so that
-  // Fiber can apply its default priority for this call.
-  return fiberBatchedUpdates(fn, bookkeeping);
-}
-function batchedUpdates(fn, bookkeeping) {
-  // We first perform work with the stack batching strategy, by passing our
-  // indirection to it.
-  return stackBatchedUpdates(performFiberBatchedUpdates, fn, bookkeeping);
+  var sliceTail = end > 1 ? 1 - end : undefined;
+  compositionState._fallbackText = endValue.slice(start, sliceTail);
+  return compositionState._fallbackText;
 }
 
-var isNestingBatched = false;
-function batchedUpdatesWithControlledComponents(fn, bookkeeping) {
-  if (isNestingBatched) {
-    // If we are currently inside another batch, we need to wait until it
-    // fully completes before restoring state. Therefore, we add the target to
-    // a queue of work.
-    return batchedUpdates(fn, bookkeeping);
-  }
-  isNestingBatched = true;
-  try {
-    return batchedUpdates(fn, bookkeeping);
-  } finally {
-    // Here we wait until all updates have propagated, which is important
-    // when using controlled components within layers:
-    // https://github.com/facebook/react/issues/1698
-    // Then we restore state of any controlled component.
-    isNestingBatched = false;
-    ReactControlledComponent_1.restoreStateIfNeeded();
+function getText() {
+  if ('value' in compositionState._root) {
+    return compositionState._root.value;
   }
+  return compositionState._root[getTextContentAccessor()];
 }
 
-var ReactGenericBatchingInjection = {
-  injectStackBatchedUpdates: function (_batchedUpdates) {
-    stackBatchedUpdates = _batchedUpdates;
-  },
-  injectFiberBatchedUpdates: function (_batchedUpdates) {
-    fiberBatchedUpdates = _batchedUpdates;
-  }
-};
+/* eslint valid-typeof: 0 */
 
-var ReactGenericBatching = {
-  batchedUpdates: batchedUpdatesWithControlledComponents,
-  injection: ReactGenericBatchingInjection
-};
+var didWarnForAddedNewProperty = false;
+var isProxySupported = typeof Proxy === 'function';
+var EVENT_POOL_SIZE = 10;
 
-var ReactGenericBatching_1 = ReactGenericBatching;
+var shouldBeReleasedProperties = ['dispatchConfig', '_targetInst', 'nativeEvent', 'isDefaultPrevented', 'isPropagationStopped', '_dispatchListeners', '_dispatchInstances'];
 
-var TEXT_NODE$1 = HTMLNodeType_1.TEXT_NODE;
+/**
+ * @interface Event
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/
+ */
+var EventInterface = {
+  type: null,
+  target: null,
+  // currentTarget is set when dispatching; no use in copying it here
+  currentTarget: emptyFunction.thatReturnsNull,
+  eventPhase: null,
+  bubbles: null,
+  cancelable: null,
+  timeStamp: function (event) {
+    return event.timeStamp || Date.now();
+  },
+  defaultPrevented: null,
+  isTrusted: null
+};
 
 /**
- * Gets the target node from a native browser event by accounting for
- * inconsistencies in browser DOM APIs.
+ * Synthetic events are dispatched by event plugins, typically in response to a
+ * top-level event delegation handler.
+ *
+ * These systems should generally use pooling to reduce the frequency of garbage
+ * collection. The system should check `isPersistent` to determine whether the
+ * event should be released into the pool after being dispatched. Users that
+ * need a persisted event should invoke `persist`.
+ *
+ * Synthetic events (and subclasses) implement the DOM Level 3 Events API by
+ * normalizing browser quirks. Subclasses do not necessarily have to implement a
+ * DOM interface; custom application-specific events can also subclass this.
  *
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {*} targetInst Marker identifying the event target.
  * @param {object} nativeEvent Native browser event.
- * @return {DOMEventTarget} Target node.
+ * @param {DOMEventTarget} nativeEventTarget Target node.
  */
-
-
-function getEventTarget(nativeEvent) {
-  var target = nativeEvent.target || nativeEvent.srcElement || window;
-
-  // Normalize SVG <use> element events #4963
-  if (target.correspondingUseElement) {
-    target = target.correspondingUseElement;
+function SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) {
+  {
+    // these have a getter/setter for warnings
+    delete this.nativeEvent;
+    delete this.preventDefault;
+    delete this.stopPropagation;
   }
 
-  // Safari may fire events on text nodes (Node.TEXT_NODE is 3).
-  // @see http://www.quirksmode.org/js/events_properties.html
-  return target.nodeType === TEXT_NODE$1 ? target.parentNode : target;
-}
-
-var getEventTarget_1 = getEventTarget;
-
-var HostRoot = ReactTypeOfWork.HostRoot;
-
-
-var CALLBACK_BOOKKEEPING_POOL_SIZE = 10;
-var callbackBookkeepingPool = [];
+  this.dispatchConfig = dispatchConfig;
+  this._targetInst = targetInst;
+  this.nativeEvent = nativeEvent;
 
-/**
- * Find the deepest React component completely containing the root of the
- * passed-in instance (for use when entire React trees are nested within each
- * other). If React trees are not nested, returns null.
- */
-function findRootContainerNode(inst) {
-  // TODO: It may be a good idea to cache this to prevent unnecessary DOM
-  // traversal, but caching is difficult to do correctly without using a
-  // mutation observer to listen for all DOM changes.
-  if (typeof inst.tag === 'number') {
-    while (inst['return']) {
-      inst = inst['return'];
+  var Interface = this.constructor.Interface;
+  for (var propName in Interface) {
+    if (!Interface.hasOwnProperty(propName)) {
+      continue;
     }
-    if (inst.tag !== HostRoot) {
-      // This can happen if we're in a detached tree.
-      return null;
+    {
+      delete this[propName]; // this has a getter/setter for warnings
     }
-    return inst.stateNode.containerInfo;
-  } else {
-    while (inst._hostParent) {
-      inst = inst._hostParent;
+    var normalize = Interface[propName];
+    if (normalize) {
+      this[propName] = normalize(nativeEvent);
+    } else {
+      if (propName === 'target') {
+        this.target = nativeEventTarget;
+      } else {
+        this[propName] = nativeEvent[propName];
+      }
     }
-    var rootNode = ReactDOMComponentTree_1.getNodeFromInstance(inst);
-    return rootNode.parentNode;
-  }
-}
-
-// Used to store ancestor hierarchy in top level callback
-function getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst) {
-  if (callbackBookkeepingPool.length) {
-    var instance = callbackBookkeepingPool.pop();
-    instance.topLevelType = topLevelType;
-    instance.nativeEvent = nativeEvent;
-    instance.targetInst = targetInst;
-    return instance;
   }
-  return {
-    topLevelType: topLevelType,
-    nativeEvent: nativeEvent,
-    targetInst: targetInst,
-    ancestors: []
-  };
-}
 
-function releaseTopLevelCallbackBookKeeping(instance) {
-  instance.topLevelType = null;
-  instance.nativeEvent = null;
-  instance.targetInst = null;
-  instance.ancestors.length = 0;
-  if (callbackBookkeepingPool.length < CALLBACK_BOOKKEEPING_POOL_SIZE) {
-    callbackBookkeepingPool.push(instance);
+  var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;
+  if (defaultPrevented) {
+    this.isDefaultPrevented = emptyFunction.thatReturnsTrue;
+  } else {
+    this.isDefaultPrevented = emptyFunction.thatReturnsFalse;
   }
+  this.isPropagationStopped = emptyFunction.thatReturnsFalse;
+  return this;
 }
 
-function handleTopLevelImpl(bookKeeping) {
-  var targetInst = bookKeeping.targetInst;
-
-  // Loop through the hierarchy, in case there's any nested components.
-  // It's important that we build the array of ancestors before calling any
-  // event handlers, because event handlers can modify the DOM, leading to
-  // inconsistencies with ReactMount's node cache. See #1105.
-  var ancestor = targetInst;
-  do {
-    if (!ancestor) {
-      bookKeeping.ancestors.push(ancestor);
-      break;
-    }
-    var root = findRootContainerNode(ancestor);
-    if (!root) {
-      break;
+_assign(SyntheticEvent.prototype, {
+  preventDefault: function () {
+    this.defaultPrevented = true;
+    var event = this.nativeEvent;
+    if (!event) {
+      return;
     }
-    bookKeeping.ancestors.push(ancestor);
-    ancestor = ReactDOMComponentTree_1.getClosestInstanceFromNode(root);
-  } while (ancestor);
-
-  for (var i = 0; i < bookKeeping.ancestors.length; i++) {
-    targetInst = bookKeeping.ancestors[i];
-    ReactDOMEventListener._handleTopLevel(bookKeeping.topLevelType, targetInst, bookKeeping.nativeEvent, getEventTarget_1(bookKeeping.nativeEvent));
-  }
-}
 
-var ReactDOMEventListener = {
-  _enabled: true,
-  _handleTopLevel: null,
-
-  setHandleTopLevel: function (handleTopLevel) {
-    ReactDOMEventListener._handleTopLevel = handleTopLevel;
+    if (event.preventDefault) {
+      event.preventDefault();
+    } else if (typeof event.returnValue !== 'unknown') {
+      event.returnValue = false;
+    }
+    this.isDefaultPrevented = emptyFunction.thatReturnsTrue;
   },
 
-  setEnabled: function (enabled) {
-    ReactDOMEventListener._enabled = !!enabled;
-  },
+  stopPropagation: function () {
+    var event = this.nativeEvent;
+    if (!event) {
+      return;
+    }
+
+    if (event.stopPropagation) {
+      event.stopPropagation();
+    } else if (typeof event.cancelBubble !== 'unknown') {
+      // The ChangeEventPlugin registers a "propertychange" event for
+      // IE. This event does not support bubbling or cancelling, and
+      // any references to cancelBubble throw "Member not found".  A
+      // typeof check of "unknown" circumvents this issue (and is also
+      // IE specific).
+      event.cancelBubble = true;
+    }
 
-  isEnabled: function () {
-    return ReactDOMEventListener._enabled;
+    this.isPropagationStopped = emptyFunction.thatReturnsTrue;
   },
 
   /**
-   * Traps top-level events by using event bubbling.
-   *
-   * @param {string} topLevelType Record from `BrowserEventConstants`.
-   * @param {string} handlerBaseName Event name (e.g. "click").
-   * @param {object} element Element on which to attach listener.
-   * @return {?object} An object with a remove function which will forcefully
-   *                  remove the listener.
-   * @internal
+   * We release all dispatched `SyntheticEvent`s after each event loop, adding
+   * them back into the pool. This allows a way to hold onto a reference that
+   * won't be added back into the pool.
    */
-  trapBubbledEvent: function (topLevelType, handlerBaseName, element) {
-    if (!element) {
-      return null;
-    }
-    return EventListener.listen(element, handlerBaseName, ReactDOMEventListener.dispatchEvent.bind(null, topLevelType));
+  persist: function () {
+    this.isPersistent = emptyFunction.thatReturnsTrue;
   },
 
   /**
-   * Traps a top-level event by using event capturing.
+   * Checks if this event should be released back into the pool.
    *
-   * @param {string} topLevelType Record from `BrowserEventConstants`.
-   * @param {string} handlerBaseName Event name (e.g. "click").
-   * @param {object} element Element on which to attach listener.
-   * @return {?object} An object with a remove function which will forcefully
-   *                  remove the listener.
-   * @internal
+   * @return {boolean} True if this should not be released, false otherwise.
    */
-  trapCapturedEvent: function (topLevelType, handlerBaseName, element) {
-    if (!element) {
-      return null;
-    }
-    return EventListener.capture(element, handlerBaseName, ReactDOMEventListener.dispatchEvent.bind(null, topLevelType));
-  },
+  isPersistent: emptyFunction.thatReturnsFalse,
 
-  dispatchEvent: function (topLevelType, nativeEvent) {
-    if (!ReactDOMEventListener._enabled) {
-      return;
+  /**
+   * `PooledClass` looks for `destructor` on each instance it releases.
+   */
+  destructor: function () {
+    var Interface = this.constructor.Interface;
+    for (var propName in Interface) {
+      {
+        Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName]));
+      }
     }
-
-    var nativeEventTarget = getEventTarget_1(nativeEvent);
-    var targetInst = ReactDOMComponentTree_1.getClosestInstanceFromNode(nativeEventTarget);
-    if (targetInst !== null && typeof targetInst.tag === 'number' && !ReactFiberTreeReflection.isFiberMounted(targetInst)) {
-      // If we get an event (ex: img onload) before committing that
-      // component's mount, ignore it for now (that is, treat it as if it was an
-      // event on a non-React tree). We might also consider queueing events and
-      // dispatching them after the mount.
-      targetInst = null;
+    for (var i = 0; i < shouldBeReleasedProperties.length; i++) {
+      this[shouldBeReleasedProperties[i]] = null;
     }
-
-    var bookKeeping = getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst);
-
-    try {
-      // Event queue being processed in the same cycle allows
-      // `preventDefault`.
-      ReactGenericBatching_1.batchedUpdates(handleTopLevelImpl, bookKeeping);
-    } finally {
-      releaseTopLevelCallbackBookKeeping(bookKeeping);
+    {
+      Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null));
+      Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', emptyFunction));
+      Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', emptyFunction));
     }
   }
-};
+});
 
-var ReactDOMEventListener_1 = ReactDOMEventListener;
+SyntheticEvent.Interface = EventInterface;
 
 /**
- * Accumulates items that must not be null or undefined into the first one. This
- * is used to conserve memory by avoiding array allocations, and thus sacrifices
- * API cleanness. Since `current` can be null before being passed in and not
- * null after this function, make sure to assign it back to `current`:
- *
- * `a = accumulateInto(a, b);`
- *
- * This API should be sparingly used. Try `accumulate` for something cleaner.
+ * Helper to reduce boilerplate when creating subclasses.
  *
- * @return {*|array<*>} An accumulation of items.
+ * @param {function} Class
+ * @param {?object} Interface
  */
+SyntheticEvent.augmentClass = function (Class, Interface) {
+  var Super = this;
 
-function accumulateInto(current, next) {
-  !(next != null) ? invariant(false, 'accumulateInto(...): Accumulated items must not be null or undefined.') : void 0;
+  var E = function () {};
+  E.prototype = Super.prototype;
+  var prototype = new E();
 
-  if (current == null) {
-    return next;
-  }
+  _assign(prototype, Class.prototype);
+  Class.prototype = prototype;
+  Class.prototype.constructor = Class;
 
-  // Both are not empty. Warning: Never call x.concat(y) when you are not
-  // certain that x is an Array (x could be a string with concat method).
-  if (Array.isArray(current)) {
-    if (Array.isArray(next)) {
-      current.push.apply(current, next);
-      return current;
-    }
-    current.push(next);
-    return current;
-  }
+  Class.Interface = _assign({}, Super.Interface, Interface);
+  Class.augmentClass = Super.augmentClass;
+  addEventPoolingTo(Class);
+};
 
-  if (Array.isArray(next)) {
-    // A bit too dangerous to mutate `next`.
-    return [current].concat(next);
+/** Proxying after everything set on SyntheticEvent
+ * to resolve Proxy issue on some WebKit browsers
+ * in which some Event properties are set to undefined (GH#10010)
+ */
+{
+  if (isProxySupported) {
+    /*eslint-disable no-func-assign */
+    SyntheticEvent = new Proxy(SyntheticEvent, {
+      construct: function (target, args) {
+        return this.apply(target, Object.create(target.prototype), args);
+      },
+      apply: function (constructor, that, args) {
+        return new Proxy(constructor.apply(that, args), {
+          set: function (target, prop, value) {
+            if (prop !== 'isPersistent' && !target.constructor.Interface.hasOwnProperty(prop) && shouldBeReleasedProperties.indexOf(prop) === -1) {
+              warning(didWarnForAddedNewProperty || target.isPersistent(), "This synthetic event is reused for performance reasons. If you're " + "seeing this, you're adding a new property in the synthetic event object. " + 'The property is never released. See ' + 'https://fb.me/react-event-pooling for more information.');
+              didWarnForAddedNewProperty = true;
+            }
+            target[prop] = value;
+            return true;
+          }
+        });
+      }
+    });
+    /*eslint-enable no-func-assign */
   }
-
-  return [current, next];
 }
 
-var accumulateInto_1 = accumulateInto;
+addEventPoolingTo(SyntheticEvent);
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * Helper to nullify syntheticEvent instance properties when destructing
  *
- * @providesModule forEachAccumulated
- * 
+ * @param {String} propName
+ * @param {?object} getVal
+ * @return {object} defineProperty object
  */
+function getPooledWarningPropertyDefinition(propName, getVal) {
+  var isFunction = typeof getVal === 'function';
+  return {
+    configurable: true,
+    set: set,
+    get: get
+  };
 
-/**
- * @param {array} arr an "accumulation" of items which is either an Array or
- * a single item. Useful when paired with the `accumulate` module. This is a
- * simple utility that allows us to reason about a collection of items, but
- * handling the case when there is exactly one item (and we do not need to
- * allocate an array).
- * @param {function} cb Callback invoked with each element or a collection.
- * @param {?} [scope] Scope used as `this` in a callback.
- */
+  function set(val) {
+    var action = isFunction ? 'setting the method' : 'setting the property';
+    warn(action, 'This is effectively a no-op');
+    return val;
+  }
 
-function forEachAccumulated(arr, cb, scope) {
-  if (Array.isArray(arr)) {
-    arr.forEach(cb, scope);
-  } else if (arr) {
-    cb.call(scope, arr);
+  function get() {
+    var action = isFunction ? 'accessing the method' : 'accessing the property';
+    var result = isFunction ? 'This is a no-op function' : 'This is set to null';
+    warn(action, result);
+    return getVal;
+  }
+
+  function warn(action, result) {
+    var warningCondition = false;
+    warning(warningCondition, "This synthetic event is reused for performance reasons. If you're seeing this, " + "you're %s `%s` on a released/nullified synthetic event. %s. " + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result);
+  }
+}
+
+function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) {
+  var EventConstructor = this;
+  if (EventConstructor.eventPool.length) {
+    var instance = EventConstructor.eventPool.pop();
+    EventConstructor.call(instance, dispatchConfig, targetInst, nativeEvent, nativeInst);
+    return instance;
+  }
+  return new EventConstructor(dispatchConfig, targetInst, nativeEvent, nativeInst);
+}
+
+function releasePooledEvent(event) {
+  var EventConstructor = this;
+  !(event instanceof EventConstructor) ? invariant(false, 'Trying to release an event instance  into a pool of a different type.') : void 0;
+  event.destructor();
+  if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) {
+    EventConstructor.eventPool.push(event);
   }
 }
 
-var forEachAccumulated_1 = forEachAccumulated;
+function addEventPoolingTo(EventConstructor) {
+  EventConstructor.eventPool = [];
+  EventConstructor.getPooled = getPooledEvent;
+  EventConstructor.release = releasePooledEvent;
+}
+
+var SyntheticEvent$1 = SyntheticEvent;
 
 /**
- * Internal queue of events that have accumulated their dispatches and are
- * waiting to have their dispatches executed.
+ * @interface Event
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents
  */
-var eventQueue = null;
+var CompositionEventInterface = {
+  data: null
+};
 
 /**
- * Dispatches an event and releases it back into the pool, unless persistent.
- *
- * @param {?object} event Synthetic event to be dispatched.
- * @param {boolean} simulated If the event is simulated (changes exn behavior)
- * @private
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticEvent}
  */
-var executeDispatchesAndRelease = function (event, simulated) {
-  if (event) {
-    EventPluginUtils_1.executeDispatchesInOrder(event, simulated);
+function SyntheticCompositionEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
+}
 
-    if (!event.isPersistent()) {
-      event.constructor.release(event);
-    }
-  }
-};
-var executeDispatchesAndReleaseSimulated = function (e) {
-  return executeDispatchesAndRelease(e, true);
-};
-var executeDispatchesAndReleaseTopLevel = function (e) {
-  return executeDispatchesAndRelease(e, false);
+SyntheticEvent$1.augmentClass(SyntheticCompositionEvent, CompositionEventInterface);
+
+/**
+ * @interface Event
+ * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
+ *      /#events-inputevents
+ */
+var InputEventInterface = {
+  data: null
 };
 
-function isInteractive(tag) {
-  return tag === 'button' || tag === 'input' || tag === 'select' || tag === 'textarea';
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticEvent}
+ */
+function SyntheticInputEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
 }
 
-function shouldPreventMouseEvent(name, type, props) {
-  switch (name) {
-    case 'onClick':
-    case 'onClickCapture':
-    case 'onDoubleClick':
-    case 'onDoubleClickCapture':
-    case 'onMouseDown':
-    case 'onMouseDownCapture':
-    case 'onMouseMove':
-    case 'onMouseMoveCapture':
-    case 'onMouseUp':
-    case 'onMouseUpCapture':
-      return !!(props.disabled && isInteractive(type));
-    default:
-      return false;
-  }
+SyntheticEvent$1.augmentClass(SyntheticInputEvent, InputEventInterface);
+
+var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space
+var START_KEYCODE = 229;
+
+var canUseCompositionEvent = ExecutionEnvironment.canUseDOM && 'CompositionEvent' in window;
+
+var documentMode = null;
+if (ExecutionEnvironment.canUseDOM && 'documentMode' in document) {
+  documentMode = document.documentMode;
 }
 
+// Webkit offers a very useful `textInput` event that can be used to
+// directly represent `beforeInput`. The IE `textinput` event is not as
+// useful, so we don't use it.
+var canUseTextInputEvent = ExecutionEnvironment.canUseDOM && 'TextEvent' in window && !documentMode && !isPresto();
+
+// In IE9+, we have access to composition events, but the data supplied
+// by the native compositionend event may be incorrect. Japanese ideographic
+// spaces, for instance (\u3000) are not recorded correctly.
+var useFallbackCompositionData = ExecutionEnvironment.canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11);
+
 /**
- * This is a unified interface for event plugins to be installed and configured.
- *
- * Event plugins can implement the following properties:
- *
- *   `extractEvents` {function(string, DOMEventTarget, string, object): *}
- *     Required. When a top-level event is fired, this method is expected to
- *     extract synthetic events that will in turn be queued and dispatched.
- *
- *   `eventTypes` {object}
- *     Optional, plugins that fire events must publish a mapping of registration
- *     names that are used to register listeners. Values of this mapping must
- *     be objects that contain `registrationName` or `phasedRegistrationNames`.
- *
- *   `executeDispatch` {function(object, function, string)}
- *     Optional, allows plugins to override how an event gets dispatched. By
- *     default, the listener is simply invoked.
- *
- * Each plugin that is injected into `EventsPluginHub` is immediately operable.
- *
- * @public
+ * Opera <= 12 includes TextEvent in window, but does not fire
+ * text input events. Rely on keypress instead.
  */
-var EventPluginHub = {
-  /**
-   * Methods for injecting dependencies.
-   */
-  injection: {
-    /**
-     * @param {array} InjectedEventPluginOrder
-     * @public
-     */
-    injectEventPluginOrder: EventPluginRegistry_1.injectEventPluginOrder,
-
-    /**
-     * @param {object} injectedNamesToPlugins Map from names to plugin modules.
-     */
-    injectEventPluginsByName: EventPluginRegistry_1.injectEventPluginsByName
-  },
+function isPresto() {
+  var opera = window.opera;
+  return typeof opera === 'object' && typeof opera.version === 'function' && parseInt(opera.version(), 10) <= 12;
+}
 
-  /**
-   * @param {object} inst The instance, which is the source of events.
-   * @param {string} registrationName Name of listener (e.g. `onClick`).
-   * @return {?function} The stored callback.
-   */
-  getListener: function (inst, registrationName) {
-    var listener;
-
-    // TODO: shouldPreventMouseEvent is DOM-specific and definitely should not
-    // live here; needs to be moved to a better place soon
-    if (typeof inst.tag === 'number') {
-      var stateNode = inst.stateNode;
-      if (!stateNode) {
-        // Work in progress (ex: onload events in incremental mode).
-        return null;
-      }
-      var props = EventPluginUtils_1.getFiberCurrentPropsFromNode(stateNode);
-      if (!props) {
-        // Work in progress.
-        return null;
-      }
-      listener = props[registrationName];
-      if (shouldPreventMouseEvent(registrationName, inst.type, props)) {
-        return null;
-      }
-    } else {
-      var currentElement = inst._currentElement;
-      if (typeof currentElement === 'string' || typeof currentElement === 'number') {
-        // Text node, let it bubble through.
-        return null;
-      }
-      if (!inst._rootNodeID) {
-        // If the instance is already unmounted, we have no listeners.
-        return null;
-      }
-      var _props = currentElement.props;
-      listener = _props[registrationName];
-      if (shouldPreventMouseEvent(registrationName, currentElement.type, _props)) {
-        return null;
-      }
-    }
+var SPACEBAR_CODE = 32;
+var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE);
 
-    !(!listener || typeof listener === 'function') ? invariant(false, 'Expected `%s` listener to be a function, instead got a value of `%s` type.', registrationName, typeof listener) : void 0;
-    return listener;
+// Events and their corresponding property names.
+var eventTypes = {
+  beforeInput: {
+    phasedRegistrationNames: {
+      bubbled: 'onBeforeInput',
+      captured: 'onBeforeInputCapture'
+    },
+    dependencies: ['topCompositionEnd', 'topKeyPress', 'topTextInput', 'topPaste']
   },
-
-  /**
-   * Allows registered plugins an opportunity to extract events from top-level
-   * native browser events.
-   *
-   * @return {*} An accumulation of synthetic events.
-   * @internal
-   */
-  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-    var events;
-    var plugins = EventPluginRegistry_1.plugins;
-    for (var i = 0; i < plugins.length; i++) {
-      // Not every plugin in the ordering may be loaded at runtime.
-      var possiblePlugin = plugins[i];
-      if (possiblePlugin) {
-        var extractedEvents = possiblePlugin.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
-        if (extractedEvents) {
-          events = accumulateInto_1(events, extractedEvents);
-        }
-      }
-    }
-    return events;
+  compositionEnd: {
+    phasedRegistrationNames: {
+      bubbled: 'onCompositionEnd',
+      captured: 'onCompositionEndCapture'
+    },
+    dependencies: ['topBlur', 'topCompositionEnd', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
   },
-
-  /**
-   * Enqueues a synthetic event that should be dispatched when
-   * `processEventQueue` is invoked.
-   *
-   * @param {*} events An accumulation of synthetic events.
-   * @internal
-   */
-  enqueueEvents: function (events) {
-    if (events) {
-      eventQueue = accumulateInto_1(eventQueue, events);
-    }
+  compositionStart: {
+    phasedRegistrationNames: {
+      bubbled: 'onCompositionStart',
+      captured: 'onCompositionStartCapture'
+    },
+    dependencies: ['topBlur', 'topCompositionStart', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
   },
-
-  /**
-   * Dispatches all synthetic events on the event queue.
-   *
-   * @internal
-   */
-  processEventQueue: function (simulated) {
-    // Set `eventQueue` to null before processing it so that we can tell if more
-    // events get enqueued while processing.
-    var processingEventQueue = eventQueue;
-    eventQueue = null;
-    if (simulated) {
-      forEachAccumulated_1(processingEventQueue, executeDispatchesAndReleaseSimulated);
-    } else {
-      forEachAccumulated_1(processingEventQueue, executeDispatchesAndReleaseTopLevel);
-    }
-    !!eventQueue ? invariant(false, 'processEventQueue(): Additional events were enqueued while processing an event queue. Support for this has not yet been implemented.') : void 0;
-    // This would be a good time to rethrow if any of the event handlers threw.
-    ReactErrorUtils_1.rethrowCaughtError();
+  compositionUpdate: {
+    phasedRegistrationNames: {
+      bubbled: 'onCompositionUpdate',
+      captured: 'onCompositionUpdateCapture'
+    },
+    dependencies: ['topBlur', 'topCompositionUpdate', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
   }
 };
 
-var EventPluginHub_1 = EventPluginHub;
+// Track whether we've ever handled a keypress on the space key.
+var hasSpaceKeypress = false;
 
-function runEventQueueInBatch(events) {
-  EventPluginHub_1.enqueueEvents(events);
-  EventPluginHub_1.processEventQueue(false);
+/**
+ * Return whether a native keypress event is assumed to be a command.
+ * This is required because Firefox fires `keypress` events for key commands
+ * (cut, copy, select-all, etc.) even though no character is inserted.
+ */
+function isKeypressCommand(nativeEvent) {
+  return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) &&
+  // ctrlKey && altKey is equivalent to AltGr, and is not a command.
+  !(nativeEvent.ctrlKey && nativeEvent.altKey);
 }
 
-var ReactEventEmitterMixin = {
-  /**
-   * Streams a fired top-level event to `EventPluginHub` where plugins have the
-   * opportunity to create `ReactEvent`s to be dispatched.
-   */
-  handleTopLevel: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-    var events = EventPluginHub_1.extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
-    runEventQueueInBatch(events);
+/**
+ * Translate native top level events into event types.
+ *
+ * @param {string} topLevelType
+ * @return {object}
+ */
+function getCompositionEventType(topLevelType) {
+  switch (topLevelType) {
+    case 'topCompositionStart':
+      return eventTypes.compositionStart;
+    case 'topCompositionEnd':
+      return eventTypes.compositionEnd;
+    case 'topCompositionUpdate':
+      return eventTypes.compositionUpdate;
   }
-};
-
-var ReactEventEmitterMixin_1 = ReactEventEmitterMixin;
-
-var useHasFeature;
-if (ExecutionEnvironment.canUseDOM) {
-  useHasFeature = document.implementation && document.implementation.hasFeature &&
-  // always returns true in newer browsers as per the standard.
-  // @see http://dom.spec.whatwg.org/#dom-domimplementation-hasfeature
-  document.implementation.hasFeature('', '') !== true;
 }
 
 /**
- * Checks if an event is supported in the current execution environment.
+ * Does our fallback best-guess model think this event signifies that
+ * composition has begun?
  *
- * NOTE: This will not work correctly for non-generic events such as `change`,
- * `reset`, `load`, `error`, and `select`.
- *
- * Borrows from Modernizr.
- *
- * @param {string} eventNameSuffix Event name, e.g. "click".
- * @param {?boolean} capture Check if the capture phase is supported.
- * @return {boolean} True if the event is supported.
- * @internal
- * @license Modernizr 3.0.0pre (Custom Build) | MIT
+ * @param {string} topLevelType
+ * @param {object} nativeEvent
+ * @return {boolean}
  */
-function isEventSupported(eventNameSuffix, capture) {
-  if (!ExecutionEnvironment.canUseDOM || capture && !('addEventListener' in document)) {
-    return false;
-  }
-
-  var eventName = 'on' + eventNameSuffix;
-  var isSupported = eventName in document;
-
-  if (!isSupported) {
-    var element = document.createElement('div');
-    element.setAttribute(eventName, 'return;');
-    isSupported = typeof element[eventName] === 'function';
-  }
-
-  if (!isSupported && useHasFeature && eventNameSuffix === 'wheel') {
-    // This is the only way to test support for the `wheel` event in IE9+.
-    isSupported = document.implementation.hasFeature('Events.wheel', '3.0');
-  }
-
-  return isSupported;
+function isFallbackCompositionStart(topLevelType, nativeEvent) {
+  return topLevelType === 'topKeyDown' && nativeEvent.keyCode === START_KEYCODE;
 }
 
-var isEventSupported_1 = isEventSupported;
-
 /**
- * Generate a mapping of standard vendor prefixes using the defined style property and event name.
+ * Does our fallback mode think that this event is the end of composition?
  *
- * @param {string} styleProp
- * @param {string} eventName
- * @returns {object}
+ * @param {string} topLevelType
+ * @param {object} nativeEvent
+ * @return {boolean}
  */
-function makePrefixMap(styleProp, eventName) {
-  var prefixes = {};
-
-  prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
-  prefixes['Webkit' + styleProp] = 'webkit' + eventName;
-  prefixes['Moz' + styleProp] = 'moz' + eventName;
-  prefixes['ms' + styleProp] = 'MS' + eventName;
-  prefixes['O' + styleProp] = 'o' + eventName.toLowerCase();
-
-  return prefixes;
+function isFallbackCompositionEnd(topLevelType, nativeEvent) {
+  switch (topLevelType) {
+    case 'topKeyUp':
+      // Command keys insert or clear IME input.
+      return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;
+    case 'topKeyDown':
+      // Expect IME keyCode on each keydown. If we get any other
+      // code we must have exited earlier.
+      return nativeEvent.keyCode !== START_KEYCODE;
+    case 'topKeyPress':
+    case 'topMouseDown':
+    case 'topBlur':
+      // Events are not possible without cancelling IME.
+      return true;
+    default:
+      return false;
+  }
 }
 
 /**
- * A list of event names to a configurable list of vendor prefixes.
- */
-var vendorPrefixes = {
-  animationend: makePrefixMap('Animation', 'AnimationEnd'),
-  animationiteration: makePrefixMap('Animation', 'AnimationIteration'),
-  animationstart: makePrefixMap('Animation', 'AnimationStart'),
-  transitionend: makePrefixMap('Transition', 'TransitionEnd')
-};
-
-/**
- * Event names that have already been detected and prefixed (if applicable).
+ * Google Input Tools provides composition data via a CustomEvent,
+ * with the `data` property populated in the `detail` object. If this
+ * is available on the event object, use it. If not, this is a plain
+ * composition event and we have nothing special to extract.
+ *
+ * @param {object} nativeEvent
+ * @return {?string}
  */
-var prefixedEventNames = {};
+function getDataFromCustomEvent(nativeEvent) {
+  var detail = nativeEvent.detail;
+  if (typeof detail === 'object' && 'data' in detail) {
+    return detail.data;
+  }
+  return null;
+}
 
-/**
- * Element to check for prefixes on.
- */
-var style = {};
+// Track the current IME composition status, if any.
+var isComposing = false;
 
 /**
- * Bootstrap if a DOM exists.
+ * @return {?object} A SyntheticCompositionEvent.
  */
-if (ExecutionEnvironment.canUseDOM) {
-  style = document.createElement('div').style;
+function extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+  var eventType;
+  var fallbackData;
 
-  // On some platforms, in particular some releases of Android 4.x,
-  // the un-prefixed "animation" and "transition" properties are defined on the
-  // style object but the events that fire will still be prefixed, so we need
-  // to check if the un-prefixed events are usable, and if not remove them from the map.
-  if (!('AnimationEvent' in window)) {
-    delete vendorPrefixes.animationend.animation;
-    delete vendorPrefixes.animationiteration.animation;
-    delete vendorPrefixes.animationstart.animation;
+  if (canUseCompositionEvent) {
+    eventType = getCompositionEventType(topLevelType);
+  } else if (!isComposing) {
+    if (isFallbackCompositionStart(topLevelType, nativeEvent)) {
+      eventType = eventTypes.compositionStart;
+    }
+  } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) {
+    eventType = eventTypes.compositionEnd;
   }
 
-  // Same as above
-  if (!('TransitionEvent' in window)) {
-    delete vendorPrefixes.transitionend.transition;
+  if (!eventType) {
+    return null;
   }
-}
 
-/**
- * Attempts to determine the correct vendor prefixed event name.
- *
- * @param {string} eventName
- * @returns {string}
- */
-function getVendorPrefixedEventName(eventName) {
-  if (prefixedEventNames[eventName]) {
-    return prefixedEventNames[eventName];
-  } else if (!vendorPrefixes[eventName]) {
-    return eventName;
+  if (useFallbackCompositionData) {
+    // The current composition is stored statically and must not be
+    // overwritten while composition continues.
+    if (!isComposing && eventType === eventTypes.compositionStart) {
+      isComposing = initialize(nativeEventTarget);
+    } else if (eventType === eventTypes.compositionEnd) {
+      if (isComposing) {
+        fallbackData = getData();
+      }
+    }
   }
 
-  var prefixMap = vendorPrefixes[eventName];
+  var event = SyntheticCompositionEvent.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget);
 
-  for (var styleProp in prefixMap) {
-    if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) {
-      return prefixedEventNames[eventName] = prefixMap[styleProp];
+  if (fallbackData) {
+    // Inject data generated from fallback path into the synthetic event.
+    // This matches the property of native CompositionEventInterface.
+    event.data = fallbackData;
+  } else {
+    var customData = getDataFromCustomEvent(nativeEvent);
+    if (customData !== null) {
+      event.data = customData;
     }
   }
 
-  return '';
+  accumulateTwoPhaseDispatches(event);
+  return event;
 }
 
-var getVendorPrefixedEventName_1 = getVendorPrefixedEventName;
+/**
+ * @param {TopLevelTypes} topLevelType Record from `BrowserEventConstants`.
+ * @param {object} nativeEvent Native browser event.
+ * @return {?string} The string corresponding to this `beforeInput` event.
+ */
+function getNativeBeforeInputChars(topLevelType, nativeEvent) {
+  switch (topLevelType) {
+    case 'topCompositionEnd':
+      return getDataFromCustomEvent(nativeEvent);
+    case 'topKeyPress':
+      /**
+       * If native `textInput` events are available, our goal is to make
+       * use of them. However, there is a special case: the spacebar key.
+       * In Webkit, preventing default on a spacebar `textInput` event
+       * cancels character insertion, but it *also* causes the browser
+       * to fall back to its default spacebar behavior of scrolling the
+       * page.
+       *
+       * Tracking at:
+       * https://code.google.com/p/chromium/issues/detail?id=355103
+       *
+       * To avoid this issue, use the keypress event as if no `textInput`
+       * event is available.
+       */
+      var which = nativeEvent.which;
+      if (which !== SPACEBAR_CODE) {
+        return null;
+      }
+
+      hasSpaceKeypress = true;
+      return SPACEBAR_CHAR;
+
+    case 'topTextInput':
+      // Record the characters to be added to the DOM.
+      var chars = nativeEvent.data;
+
+      // If it's a spacebar character, assume that we have already handled
+      // it at the keypress level and bail immediately. Android Chrome
+      // doesn't give us keycodes, so we need to blacklist it.
+      if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {
+        return null;
+      }
+
+      return chars;
+
+    default:
+      // For other native event types, do nothing.
+      return null;
+  }
+}
 
 /**
- * Types of raw signals from the browser caught at the top level.
+ * For browsers that do not provide the `textInput` event, extract the
+ * appropriate string to use for SyntheticInputEvent.
  *
- * For events like 'submit' which don't consistently bubble (which we
- * trap at a lower node than `document`), binding at `document` would
- * cause duplicate events so we don't include them here.
+ * @param {string} topLevelType Record from `BrowserEventConstants`.
+ * @param {object} nativeEvent Native browser event.
+ * @return {?string} The fallback string for this `beforeInput` event.
  */
-var topLevelTypes$1 = {
-  topAbort: 'abort',
-  topAnimationEnd: getVendorPrefixedEventName_1('animationend') || 'animationend',
-  topAnimationIteration: getVendorPrefixedEventName_1('animationiteration') || 'animationiteration',
-  topAnimationStart: getVendorPrefixedEventName_1('animationstart') || 'animationstart',
-  topBlur: 'blur',
-  topCancel: 'cancel',
-  topCanPlay: 'canplay',
-  topCanPlayThrough: 'canplaythrough',
-  topChange: 'change',
-  topClick: 'click',
-  topClose: 'close',
-  topCompositionEnd: 'compositionend',
-  topCompositionStart: 'compositionstart',
-  topCompositionUpdate: 'compositionupdate',
-  topContextMenu: 'contextmenu',
-  topCopy: 'copy',
-  topCut: 'cut',
-  topDoubleClick: 'dblclick',
-  topDrag: 'drag',
-  topDragEnd: 'dragend',
-  topDragEnter: 'dragenter',
-  topDragExit: 'dragexit',
-  topDragLeave: 'dragleave',
-  topDragOver: 'dragover',
-  topDragStart: 'dragstart',
-  topDrop: 'drop',
-  topDurationChange: 'durationchange',
-  topEmptied: 'emptied',
-  topEncrypted: 'encrypted',
-  topEnded: 'ended',
-  topError: 'error',
-  topFocus: 'focus',
-  topInput: 'input',
-  topKeyDown: 'keydown',
-  topKeyPress: 'keypress',
-  topKeyUp: 'keyup',
-  topLoadedData: 'loadeddata',
-  topLoad: 'load',
-  topLoadedMetadata: 'loadedmetadata',
-  topLoadStart: 'loadstart',
-  topMouseDown: 'mousedown',
-  topMouseMove: 'mousemove',
-  topMouseOut: 'mouseout',
-  topMouseOver: 'mouseover',
-  topMouseUp: 'mouseup',
-  topPaste: 'paste',
-  topPause: 'pause',
-  topPlay: 'play',
-  topPlaying: 'playing',
-  topProgress: 'progress',
-  topRateChange: 'ratechange',
-  topScroll: 'scroll',
-  topSeeked: 'seeked',
-  topSeeking: 'seeking',
-  topSelectionChange: 'selectionchange',
-  topStalled: 'stalled',
-  topSuspend: 'suspend',
-  topTextInput: 'textInput',
-  topTimeUpdate: 'timeupdate',
-  topToggle: 'toggle',
-  topTouchCancel: 'touchcancel',
-  topTouchEnd: 'touchend',
-  topTouchMove: 'touchmove',
-  topTouchStart: 'touchstart',
-  topTransitionEnd: getVendorPrefixedEventName_1('transitionend') || 'transitionend',
-  topVolumeChange: 'volumechange',
-  topWaiting: 'waiting',
-  topWheel: 'wheel'
-};
+function getFallbackBeforeInputChars(topLevelType, nativeEvent) {
+  // If we are currently composing (IME) and using a fallback to do so,
+  // try to extract the composed characters from the fallback object.
+  // If composition event is available, we extract a string only at
+  // compositionevent, otherwise extract it at fallback events.
+  if (isComposing) {
+    if (topLevelType === 'topCompositionEnd' || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) {
+      var chars = getData();
+      reset();
+      isComposing = false;
+      return chars;
+    }
+    return null;
+  }
 
-var BrowserEventConstants = {
-  topLevelTypes: topLevelTypes$1
-};
+  switch (topLevelType) {
+    case 'topPaste':
+      // If a paste event occurs after a keypress, throw out the input
+      // chars. Paste events should not lead to BeforeInput events.
+      return null;
+    case 'topKeyPress':
+      /**
+       * As of v27, Firefox may fire keypress events even when no character
+       * will be inserted. A few possibilities:
+       *
+       * - `which` is `0`. Arrow keys, Esc key, etc.
+       *
+       * - `which` is the pressed key code, but no char is available.
+       *   Ex: 'AltGr + d` in Polish. There is no modified character for
+       *   this key combination and no character is inserted into the
+       *   document, but FF fires the keypress for char code `100` anyway.
+       *   No `input` event will occur.
+       *
+       * - `which` is the pressed key code, but a command combination is
+       *   being used. Ex: `Cmd+C`. No character is inserted, and no
+       *   `input` event will occur.
+       */
+      if (!isKeypressCommand(nativeEvent)) {
+        // IE fires the `keypress` event when a user types an emoji via
+        // Touch keyboard of Windows.  In such a case, the `char` property
+        // holds an emoji character like `\uD83D\uDE0A`.  Because its length
+        // is 2, the property `which` does not represent an emoji correctly.
+        // In such a case, we directly return the `char` property instead of
+        // using `which`.
+        if (nativeEvent.char && nativeEvent.char.length > 1) {
+          return nativeEvent.char;
+        } else if (nativeEvent.which) {
+          return String.fromCharCode(nativeEvent.which);
+        }
+      }
+      return null;
+    case 'topCompositionEnd':
+      return useFallbackCompositionData ? null : nativeEvent.data;
+    default:
+      return null;
+  }
+}
+
+/**
+ * Extract a SyntheticInputEvent for `beforeInput`, based on either native
+ * `textInput` or fallback behavior.
+ *
+ * @return {?object} A SyntheticInputEvent.
+ */
+function extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+  var chars;
+
+  if (canUseTextInputEvent) {
+    chars = getNativeBeforeInputChars(topLevelType, nativeEvent);
+  } else {
+    chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);
+  }
+
+  // If no characters are being inserted, no BeforeInput event should
+  // be fired.
+  if (!chars) {
+    return null;
+  }
 
-var BrowserEventConstants_1 = BrowserEventConstants;
+  var event = SyntheticInputEvent.getPooled(eventTypes.beforeInput, targetInst, nativeEvent, nativeEventTarget);
 
-var topLevelTypes = BrowserEventConstants_1.topLevelTypes;
+  event.data = chars;
+  accumulateTwoPhaseDispatches(event);
+  return event;
+}
 
 /**
- * Summary of `ReactBrowserEventEmitter` event handling:
- *
- *  - Top-level delegation is used to trap most native browser events. This
- *    may only occur in the main thread and is the responsibility of
- *    ReactDOMEventListener, which is injected and can therefore support
- *    pluggable event sources. This is the only work that occurs in the main
- *    thread.
- *
- *  - We normalize and de-duplicate events to account for browser quirks. This
- *    may be done in the worker thread.
- *
- *  - Forward these native events (with the associated top-level type used to
- *    trap it) to `EventPluginHub`, which in turn will ask plugins if they want
- *    to extract any synthetic events.
- *
- *  - The `EventPluginHub` will then process each event by annotating them with
- *    "dispatches", a sequence of listeners and IDs that care about that event.
+ * Create an `onBeforeInput` event to match
+ * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.
  *
- *  - The `EventPluginHub` then dispatches the events.
+ * This event plugin is based on the native `textInput` event
+ * available in Chrome, Safari, Opera, and IE. This event fires after
+ * `onKeyPress` and `onCompositionEnd`, but before `onInput`.
  *
- * Overview of React and the event system:
+ * `beforeInput` is spec'd but not implemented in any browsers, and
+ * the `input` event does not provide any useful information about what has
+ * actually been added, contrary to the spec. Thus, `textInput` is the best
+ * available event to identify the characters that have actually been inserted
+ * into the target node.
  *
- * +------------+    .
- * |    DOM     |    .
- * +------------+    .
- *       |           .
- *       v           .
- * +------------+    .
- * | ReactEvent |    .
- * |  Listener  |    .
- * +------------+    .                         +-----------+
- *       |           .               +--------+|SimpleEvent|
- *       |           .               |         |Plugin     |
- * +-----|------+    .               v         +-----------+
- * |     |      |    .    +--------------+                    +------------+
- * |     +-----------.--->|EventPluginHub|                    |    Event   |
- * |            |    .    |              |     +-----------+  | Propagators|
- * | ReactEvent |    .    |              |     |TapEvent   |  |------------|
- * |  Emitter   |    .    |              |<---+|Plugin     |  |other plugin|
- * |            |    .    |              |     +-----------+  |  utilities |
- * |     +-----------.--->|              |                    +------------+
- * |     |      |    .    +--------------+
- * +-----|------+    .                ^        +-----------+
- *       |           .                |        |Enter/Leave|
- *       +           .                +-------+|Plugin     |
- * +-------------+   .                         +-----------+
- * | application |   .
- * |-------------|   .
- * |             |   .
- * |             |   .
- * +-------------+   .
- *                   .
- *    React Core     .  General Purpose Event Plugin System
+ * This plugin is also responsible for emitting `composition` events, thus
+ * allowing us to share composition fallback code for both `beforeInput` and
+ * `composition` event types.
  */
+var BeforeInputEventPlugin = {
+  eventTypes: eventTypes,
 
-var alreadyListeningTo = {};
-var reactTopListenersCounter = 0;
+  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+    return [extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget), extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget)];
+  }
+};
 
-/**
- * To ensure no conflicts with other potential React instances on the page
- */
-var topListenersIDKey = '_reactListenersID' + ('' + Math.random()).slice(2);
+// Use to restore controlled state after a change event has fired.
 
-function getListeningForDocument(mountAt) {
-  // In IE8, `mountAt` is a host object and doesn't have `hasOwnProperty`
-  // directly.
-  if (!Object.prototype.hasOwnProperty.call(mountAt, topListenersIDKey)) {
-    mountAt[topListenersIDKey] = reactTopListenersCounter++;
-    alreadyListeningTo[mountAt[topListenersIDKey]] = {};
-  }
-  return alreadyListeningTo[mountAt[topListenersIDKey]];
-}
+var fiberHostComponent = null;
 
-var ReactBrowserEventEmitter = _assign({}, ReactEventEmitterMixin_1, {
-  /**
-   * Sets whether or not any created callbacks should be enabled.
-   *
-   * @param {boolean} enabled True if callbacks should be enabled.
-   */
-  setEnabled: function (enabled) {
-    if (ReactDOMEventListener_1) {
-      ReactDOMEventListener_1.setEnabled(enabled);
-    }
-  },
+var ReactControlledComponentInjection = {
+  injectFiberControlledHostComponent: function (hostComponentImpl) {
+    // The fiber implementation doesn't use dynamic dispatch so we need to
+    // inject the implementation.
+    fiberHostComponent = hostComponentImpl;
+  }
+};
 
-  /**
-   * @return {boolean} True if callbacks are enabled.
-   */
-  isEnabled: function () {
-    return !!(ReactDOMEventListener_1 && ReactDOMEventListener_1.isEnabled());
-  },
+var restoreTarget = null;
+var restoreQueue = null;
 
-  /**
-   * We listen for bubbled touch events on the document object.
-   *
-   * Firefox v8.01 (and possibly others) exhibited strange behavior when
-   * mounting `onmousemove` events at some node that was not the document
-   * element. The symptoms were that if your mouse is not moving over something
-   * contained within that mount point (for example on the background) the
-   * top-level listeners for `onmousemove` won't be called. However, if you
-   * register the `mousemove` on the document object, then it will of course
-   * catch all `mousemove`s. This along with iOS quirks, justifies restricting
-   * top-level listeners to the document object only, at least for these
-   * movement types of events and possibly all events.
-   *
-   * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
-   *
-   * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but
-   * they bubble to document.
-   *
-   * @param {string} registrationName Name of listener (e.g. `onClick`).
-   * @param {object} contentDocumentHandle Document which owns the container
-   */
-  listenTo: function (registrationName, contentDocumentHandle) {
-    var mountAt = contentDocumentHandle;
-    var isListening = getListeningForDocument(mountAt);
-    var dependencies = EventPluginRegistry_1.registrationNameDependencies[registrationName];
-
-    for (var i = 0; i < dependencies.length; i++) {
-      var dependency = dependencies[i];
-      if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {
-        if (dependency === 'topWheel') {
-          if (isEventSupported_1('wheel')) {
-            ReactDOMEventListener_1.trapBubbledEvent('topWheel', 'wheel', mountAt);
-          } else if (isEventSupported_1('mousewheel')) {
-            ReactDOMEventListener_1.trapBubbledEvent('topWheel', 'mousewheel', mountAt);
-          } else {
-            // Firefox needs to capture a different mouse scroll event.
-            // @see http://www.quirksmode.org/dom/events/tests/scroll.html
-            ReactDOMEventListener_1.trapBubbledEvent('topWheel', 'DOMMouseScroll', mountAt);
-          }
-        } else if (dependency === 'topScroll') {
-          ReactDOMEventListener_1.trapCapturedEvent('topScroll', 'scroll', mountAt);
-        } else if (dependency === 'topFocus' || dependency === 'topBlur') {
-          ReactDOMEventListener_1.trapCapturedEvent('topFocus', 'focus', mountAt);
-          ReactDOMEventListener_1.trapCapturedEvent('topBlur', 'blur', mountAt);
-
-          // to make sure blur and focus event listeners are only attached once
-          isListening.topBlur = true;
-          isListening.topFocus = true;
-        } else if (dependency === 'topCancel') {
-          if (isEventSupported_1('cancel', true)) {
-            ReactDOMEventListener_1.trapCapturedEvent('topCancel', 'cancel', mountAt);
-          }
-          isListening.topCancel = true;
-        } else if (dependency === 'topClose') {
-          if (isEventSupported_1('close', true)) {
-            ReactDOMEventListener_1.trapCapturedEvent('topClose', 'close', mountAt);
-          }
-          isListening.topClose = true;
-        } else if (topLevelTypes.hasOwnProperty(dependency)) {
-          ReactDOMEventListener_1.trapBubbledEvent(dependency, topLevelTypes[dependency], mountAt);
-        }
+function restoreStateOfTarget(target) {
+  // We perform this translation at the end of the event loop so that we
+  // always receive the correct fiber here
+  var internalInstance = getInstanceFromNode(target);
+  if (!internalInstance) {
+    // Unmounted
+    return;
+  }
+  !(fiberHostComponent && typeof fiberHostComponent.restoreControlledState === 'function') ? invariant(false, 'Fiber needs to be injected to handle a fiber target for controlled events. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+  var props = getFiberCurrentPropsFromNode(internalInstance.stateNode);
+  fiberHostComponent.restoreControlledState(internalInstance.stateNode, internalInstance.type, props);
+}
 
-        isListening[dependency] = true;
-      }
-    }
-  },
+var injection$3 = ReactControlledComponentInjection;
 
-  isListeningToAllDependencies: function (registrationName, mountAt) {
-    var isListening = getListeningForDocument(mountAt);
-    var dependencies = EventPluginRegistry_1.registrationNameDependencies[registrationName];
-    for (var i = 0; i < dependencies.length; i++) {
-      var dependency = dependencies[i];
-      if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {
-        return false;
-      }
+function enqueueStateRestore(target) {
+  if (restoreTarget) {
+    if (restoreQueue) {
+      restoreQueue.push(target);
+    } else {
+      restoreQueue = [target];
     }
-    return true;
-  },
+  } else {
+    restoreTarget = target;
+  }
+}
 
-  trapBubbledEvent: function (topLevelType, handlerBaseName, handle) {
-    return ReactDOMEventListener_1.trapBubbledEvent(topLevelType, handlerBaseName, handle);
-  },
+function restoreStateIfNeeded() {
+  if (!restoreTarget) {
+    return;
+  }
+  var target = restoreTarget;
+  var queuedTargets = restoreQueue;
+  restoreTarget = null;
+  restoreQueue = null;
 
-  trapCapturedEvent: function (topLevelType, handlerBaseName, handle) {
-    return ReactDOMEventListener_1.trapCapturedEvent(topLevelType, handlerBaseName, handle);
+  restoreStateOfTarget(target);
+  if (queuedTargets) {
+    for (var i = 0; i < queuedTargets.length; i++) {
+      restoreStateOfTarget(queuedTargets[i]);
+    }
   }
-});
+}
 
-var ReactBrowserEventEmitter_1 = ReactBrowserEventEmitter;
+var ReactControlledComponent = Object.freeze({
+	injection: injection$3,
+	enqueueStateRestore: enqueueStateRestore,
+	restoreStateIfNeeded: restoreStateIfNeeded
+});
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactDOMFeatureFlags
- */
+// Used as a way to call batchedUpdates when we don't have a reference to
+// the renderer. Such as when we're dispatching events or if third party
+// libraries need to call batchedUpdates. Eventually, this API will go away when
+// everything is batched by default. We'll then have a similar API to opt-out of
+// scheduled work and instead do synchronous work.
 
-var ReactDOMFeatureFlags = {
-  fiberAsyncScheduling: false,
-  useFiber: true
+// Defaults
+var fiberBatchedUpdates = function (fn, bookkeeping) {
+  return fn(bookkeeping);
 };
 
-var ReactDOMFeatureFlags_1 = ReactDOMFeatureFlags;
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule CSSProperty
- */
-
-/**
- * CSS properties which accept numbers but are not in units of "px".
- */
-
-var isUnitlessNumber = {
-  animationIterationCount: true,
-  borderImageOutset: true,
-  borderImageSlice: true,
-  borderImageWidth: true,
-  boxFlex: true,
-  boxFlexGroup: true,
-  boxOrdinalGroup: true,
-  columnCount: true,
-  columns: true,
-  flex: true,
-  flexGrow: true,
-  flexPositive: true,
-  flexShrink: true,
-  flexNegative: true,
-  flexOrder: true,
-  gridRow: true,
-  gridRowEnd: true,
-  gridRowSpan: true,
-  gridRowStart: true,
-  gridColumn: true,
-  gridColumnEnd: true,
-  gridColumnSpan: true,
-  gridColumnStart: true,
-  fontWeight: true,
-  lineClamp: true,
-  lineHeight: true,
-  opacity: true,
-  order: true,
-  orphans: true,
-  tabSize: true,
-  widows: true,
-  zIndex: true,
-  zoom: true,
+var isNestingBatched = false;
+function batchedUpdates(fn, bookkeeping) {
+  if (isNestingBatched) {
+    // If we are currently inside another batch, we need to wait until it
+    // fully completes before restoring state. Therefore, we add the target to
+    // a queue of work.
+    return fiberBatchedUpdates(fn, bookkeeping);
+  }
+  isNestingBatched = true;
+  try {
+    return fiberBatchedUpdates(fn, bookkeeping);
+  } finally {
+    // Here we wait until all updates have propagated, which is important
+    // when using controlled components within layers:
+    // https://github.com/facebook/react/issues/1698
+    // Then we restore state of any controlled component.
+    isNestingBatched = false;
+    restoreStateIfNeeded();
+  }
+}
 
-  // SVG-related properties
-  fillOpacity: true,
-  floodOpacity: true,
-  stopOpacity: true,
-  strokeDasharray: true,
-  strokeDashoffset: true,
-  strokeMiterlimit: true,
-  strokeOpacity: true,
-  strokeWidth: true
+var ReactGenericBatchingInjection = {
+  injectFiberBatchedUpdates: function (_batchedUpdates) {
+    fiberBatchedUpdates = _batchedUpdates;
+  }
 };
 
-/**
- * @param {string} prefix vendor-specific prefix, eg: Webkit
- * @param {string} key style name, eg: transitionDuration
- * @return {string} style name prefixed with `prefix`, properly camelCased, eg:
- * WebkitTransitionDuration
- */
-function prefixKey(prefix, key) {
-  return prefix + key.charAt(0).toUpperCase() + key.substring(1);
-}
+var injection$4 = ReactGenericBatchingInjection;
 
 /**
- * Support style names that may come passed in prefixed by adding permutations
- * of vendor prefixes.
+ * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
  */
-var prefixes = ['Webkit', 'ms', 'Moz', 'O'];
+var supportedInputTypes = {
+  color: true,
+  date: true,
+  datetime: true,
+  'datetime-local': true,
+  email: true,
+  month: true,
+  number: true,
+  password: true,
+  range: true,
+  search: true,
+  tel: true,
+  text: true,
+  time: true,
+  url: true,
+  week: true
+};
 
-// Using Object.keys here, or else the vanilla for-in loop makes IE8 go into an
-// infinite loop, because it iterates over the newly added props too.
-Object.keys(isUnitlessNumber).forEach(function (prop) {
-  prefixes.forEach(function (prefix) {
-    isUnitlessNumber[prefixKey(prefix, prop)] = isUnitlessNumber[prop];
-  });
-});
+function isTextInputElement(elem) {
+  var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
 
-/**
- * Most style properties can be unset by doing .style[prop] = '' but IE8
- * doesn't like doing that with shorthand properties so for the properties that
- * IE8 breaks on, which are listed here, we instead unset each of the
- * individual properties. See http://bugs.jquery.com/ticket/12385.
- * The 4-value 'clock' properties like margin, padding, border-width seem to
- * behave without any problems. Curiously, list-style works too without any
- * special prodding.
- */
-var shorthandPropertyExpansions = {
-  background: {
-    backgroundAttachment: true,
-    backgroundColor: true,
-    backgroundImage: true,
-    backgroundPositionX: true,
-    backgroundPositionY: true,
-    backgroundRepeat: true
-  },
-  backgroundPosition: {
-    backgroundPositionX: true,
-    backgroundPositionY: true
-  },
-  border: {
-    borderWidth: true,
-    borderStyle: true,
-    borderColor: true
-  },
-  borderBottom: {
-    borderBottomWidth: true,
-    borderBottomStyle: true,
-    borderBottomColor: true
-  },
-  borderLeft: {
-    borderLeftWidth: true,
-    borderLeftStyle: true,
-    borderLeftColor: true
-  },
-  borderRight: {
-    borderRightWidth: true,
-    borderRightStyle: true,
-    borderRightColor: true
-  },
-  borderTop: {
-    borderTopWidth: true,
-    borderTopStyle: true,
-    borderTopColor: true
-  },
-  font: {
-    fontStyle: true,
-    fontVariant: true,
-    fontWeight: true,
-    fontSize: true,
-    lineHeight: true,
-    fontFamily: true
-  },
-  outline: {
-    outlineWidth: true,
-    outlineStyle: true,
-    outlineColor: true
+  if (nodeName === 'input') {
+    return !!supportedInputTypes[elem.type];
   }
-};
 
-var CSSProperty = {
-  isUnitlessNumber: isUnitlessNumber,
-  shorthandPropertyExpansions: shorthandPropertyExpansions
-};
+  if (nodeName === 'textarea') {
+    return true;
+  }
 
-var CSSProperty_1 = CSSProperty;
+  return false;
+}
+
+/**
+ * HTML nodeType values that represent the type of the node
+ */
 
-var isUnitlessNumber$1 = CSSProperty_1.isUnitlessNumber;
+var ELEMENT_NODE = 1;
+var TEXT_NODE = 3;
+var COMMENT_NODE = 8;
+var DOCUMENT_NODE = 9;
+var DOCUMENT_FRAGMENT_NODE = 11;
 
 /**
- * Convert a value into the proper css writable value. The style name `name`
- * should be logical (no hyphens), as specified
- * in `CSSProperty.isUnitlessNumber`.
+ * Gets the target node from a native browser event by accounting for
+ * inconsistencies in browser DOM APIs.
  *
- * @param {string} name CSS property name such as `topMargin`.
- * @param {*} value CSS property value such as `10px`.
- * @return {string} Normalized style value with dimensions applied.
+ * @param {object} nativeEvent Native browser event.
+ * @return {DOMEventTarget} Target node.
  */
-function dangerousStyleValue(name, value, isCustomProperty) {
-  // Note that we've removed escapeTextForBrowser() calls here since the
-  // whole string will be escaped when the attribute is injected into
-  // the markup. If you provide unsafe user data here they can inject
-  // arbitrary CSS which may be problematic (I couldn't repro this):
-  // https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
-  // http://www.thespanner.co.uk/2007/11/26/ultimate-xss-css-injection/
-  // This is not an XSS hole but instead a potential CSS injection issue
-  // which has lead to a greater discussion about how we're going to
-  // trust URLs moving forward. See #2115901
-
-  var isEmpty = value == null || typeof value === 'boolean' || value === '';
-  if (isEmpty) {
-    return '';
-  }
+function getEventTarget(nativeEvent) {
+  var target = nativeEvent.target || nativeEvent.srcElement || window;
 
-  if (!isCustomProperty && typeof value === 'number' && value !== 0 && !(isUnitlessNumber$1.hasOwnProperty(name) && isUnitlessNumber$1[name])) {
-    return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
+  // Normalize SVG <use> element events #4963
+  if (target.correspondingUseElement) {
+    target = target.correspondingUseElement;
   }
 
-  return ('' + value).trim();
+  // Safari may fire events on text nodes (Node.TEXT_NODE is 3).
+  // @see http://www.quirksmode.org/js/events_properties.html
+  return target.nodeType === TEXT_NODE ? target.parentNode : target;
 }
 
-var dangerousStyleValue_1 = dangerousStyleValue;
+var useHasFeature;
+if (ExecutionEnvironment.canUseDOM) {
+  useHasFeature = document.implementation && document.implementation.hasFeature &&
+  // always returns true in newer browsers as per the standard.
+  // @see http://dom.spec.whatwg.org/#dom-domimplementation-hasfeature
+  document.implementation.hasFeature('', '') !== true;
+}
 
 /**
- * Copyright (c) 2016-present, Facebook, Inc.
+ * Checks if an event is supported in the current execution environment.
  *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * NOTE: This will not work correctly for non-generic events such as `change`,
+ * `reset`, `load`, `error`, and `select`.
  *
- * 
- * @providesModule describeComponentFrame
+ * Borrows from Modernizr.
+ *
+ * @param {string} eventNameSuffix Event name, e.g. "click".
+ * @param {?boolean} capture Check if the capture phase is supported.
+ * @return {boolean} True if the event is supported.
+ * @internal
+ * @license Modernizr 3.0.0pre (Custom Build) | MIT
  */
+function isEventSupported(eventNameSuffix, capture) {
+  if (!ExecutionEnvironment.canUseDOM || capture && !('addEventListener' in document)) {
+    return false;
+  }
 
-var describeComponentFrame = function (name, source, ownerName) {
-  return '\n    in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : '');
-};
-
-var IndeterminateComponent = ReactTypeOfWork.IndeterminateComponent;
-var FunctionalComponent = ReactTypeOfWork.FunctionalComponent;
-var ClassComponent$1 = ReactTypeOfWork.ClassComponent;
-var HostComponent$2 = ReactTypeOfWork.HostComponent;
+  var eventName = 'on' + eventNameSuffix;
+  var isSupported = eventName in document;
 
+  if (!isSupported) {
+    var element = document.createElement('div');
+    element.setAttribute(eventName, 'return;');
+    isSupported = typeof element[eventName] === 'function';
+  }
 
+  if (!isSupported && useHasFeature && eventNameSuffix === 'wheel') {
+    // This is the only way to test support for the `wheel` event in IE9+.
+    isSupported = document.implementation.hasFeature('Events.wheel', '3.0');
+  }
 
+  return isSupported;
+}
 
-function describeFiber(fiber) {
-  switch (fiber.tag) {
-    case IndeterminateComponent:
-    case FunctionalComponent:
-    case ClassComponent$1:
-    case HostComponent$2:
-      var owner = fiber._debugOwner;
-      var source = fiber._debugSource;
-      var name = getComponentName_1(fiber);
-      var ownerName = null;
-      if (owner) {
-        ownerName = getComponentName_1(owner);
-      }
-      return describeComponentFrame(name, source, ownerName);
-    default:
-      return '';
-  }
+function isCheckable(elem) {
+  var type = elem.type;
+  var nodeName = elem.nodeName;
+  return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');
 }
 
-// This function can only be called with a work-in-progress fiber and
-// only during begin or complete phase. Do not call it under any other
-// circumstances.
-function getStackAddendumByWorkInProgressFiber$1(workInProgress) {
-  var info = '';
-  var node = workInProgress;
-  do {
-    info += describeFiber(node);
-    // Otherwise this return pointer might point to the wrong tree:
-    node = node['return'];
-  } while (node);
-  return info;
+function getTracker(node) {
+  return node._valueTracker;
 }
 
-var ReactFiberComponentTreeHook = {
-  getStackAddendumByWorkInProgressFiber: getStackAddendumByWorkInProgressFiber$1
-};
-
-var ReactDebugCurrentFrame = ReactGlobalSharedState_1.ReactDebugCurrentFrame;
-
-{
-  var getComponentName$3 = getComponentName_1;
-
-  var _require2$2 = ReactFiberComponentTreeHook,
-      getStackAddendumByWorkInProgressFiber = _require2$2.getStackAddendumByWorkInProgressFiber;
+function detachTracker(node) {
+  node._valueTracker = null;
 }
 
-function getCurrentFiberOwnerName$2() {
-  {
-    var fiber = ReactDebugCurrentFiber.current;
-    if (fiber === null) {
-      return null;
-    }
-    if (fiber._debugOwner != null) {
-      return getComponentName$3(fiber._debugOwner);
-    }
+function getValueFromNode(node) {
+  var value = '';
+  if (!node) {
+    return value;
   }
-  return null;
-}
 
-function getCurrentFiberStackAddendum$1() {
-  {
-    var fiber = ReactDebugCurrentFiber.current;
-    if (fiber === null) {
-      return null;
-    }
-    // Safe because if current fiber exists, we are reconciling,
-    // and it is guaranteed to be the work-in-progress version.
-    return getStackAddendumByWorkInProgressFiber(fiber);
+  if (isCheckable(node)) {
+    value = node.checked ? 'true' : 'false';
+  } else {
+    value = node.value;
   }
-  return null;
-}
 
-function resetCurrentFiber() {
-  ReactDebugCurrentFrame.getCurrentStack = null;
-  ReactDebugCurrentFiber.current = null;
-  ReactDebugCurrentFiber.phase = null;
-}
-
-function setCurrentFiber(fiber, phase) {
-  ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackAddendum$1;
-  ReactDebugCurrentFiber.current = fiber;
-  ReactDebugCurrentFiber.phase = phase;
+  return value;
 }
 
-var ReactDebugCurrentFiber = {
-  current: null,
-  phase: null,
-  resetCurrentFiber: resetCurrentFiber,
-  setCurrentFiber: setCurrentFiber,
-  getCurrentFiberOwnerName: getCurrentFiberOwnerName$2,
-  getCurrentFiberStackAddendum: getCurrentFiberStackAddendum$1
-};
-
-var ReactDebugCurrentFiber_1 = ReactDebugCurrentFiber;
-
-var warnValidStyle$1 = emptyFunction;
-
-{
-  var camelizeStyleName$1 = camelizeStyleName;
-  var getComponentName$2 = getComponentName_1;
-  var warning$4 = require$$0;
-
-  var _require$3 = ReactDebugCurrentFiber_1,
-      getCurrentFiberOwnerName$1 = _require$3.getCurrentFiberOwnerName;
-
-  // 'msTransform' is correct, but the other prefixes should be capitalized
-
-
-  var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;
-
-  // style values shouldn't contain a semicolon
-  var badStyleValueWithSemicolonPattern = /;\s*$/;
-
-  var warnedStyleNames = {};
-  var warnedStyleValues = {};
-  var warnedForNaNValue = false;
-  var warnedForInfinityValue = false;
-
-  var warnHyphenatedStyleName = function (name, owner) {
-    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
-      return;
-    }
-
-    warnedStyleNames[name] = true;
-    warning$4(false, 'Unsupported style property %s. Did you mean %s?%s', name, camelizeStyleName$1(name), checkRenderMessage(owner));
-  };
-
-  var warnBadVendoredStyleName = function (name, owner) {
-    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
-      return;
-    }
-
-    warnedStyleNames[name] = true;
-    warning$4(false, 'Unsupported vendor-prefixed style property %s. Did you mean %s?%s', name, name.charAt(0).toUpperCase() + name.slice(1), checkRenderMessage(owner));
-  };
-
-  var warnStyleValueWithSemicolon = function (name, value, owner) {
-    if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
-      return;
-    }
-
-    warnedStyleValues[value] = true;
-    warning$4(false, "Style property values shouldn't contain a semicolon.%s " + 'Try "%s: %s" instead.', checkRenderMessage(owner), name, value.replace(badStyleValueWithSemicolonPattern, ''));
-  };
-
-  var warnStyleValueIsNaN = function (name, value, owner) {
-    if (warnedForNaNValue) {
-      return;
-    }
-
-    warnedForNaNValue = true;
-    warning$4(false, '`NaN` is an invalid value for the `%s` css style property.%s', name, checkRenderMessage(owner));
-  };
-
-  var warnStyleValueIsInfinity = function (name, value, owner) {
-    if (warnedForInfinityValue) {
-      return;
-    }
+function trackValueOnNode(node) {
+  var valueField = isCheckable(node) ? 'checked' : 'value';
+  var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);
 
-    warnedForInfinityValue = true;
-    warning$4(false, '`Infinity` is an invalid value for the `%s` css style property.%s', name, checkRenderMessage(owner));
-  };
+  var currentValue = '' + node[valueField];
 
-  var checkRenderMessage = function (owner) {
-    var ownerName;
-    if (owner != null) {
-      // Stack passes the owner manually all the way to CSSPropertyOperations.
-      ownerName = getComponentName$2(owner);
-    } else {
-      // Fiber doesn't pass it but uses ReactDebugCurrentFiber to track it.
-      // It is only enabled in development and tracks host components too.
-      ownerName = getCurrentFiberOwnerName$1();
-      // TODO: also report the stack.
-    }
-    if (ownerName) {
-      return '\n\nCheck the render method of `' + ownerName + '`.';
-    }
-    return '';
-  };
+  // if someone has already defined a value or Safari, then bail
+  // and don't track value will cause over reporting of changes,
+  // but it's better then a hard failure
+  // (needed for certain tests that spyOn input values and Safari)
+  if (node.hasOwnProperty(valueField) || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {
+    return;
+  }
 
-  warnValidStyle$1 = function (name, value, component) {
-    var owner;
-    if (component) {
-      // TODO: this only works with Stack. Seems like we need to add unit tests?
-      owner = component._currentElement._owner;
-    }
-    if (name.indexOf('-') > -1) {
-      warnHyphenatedStyleName(name, owner);
-    } else if (badVendoredStyleNamePattern.test(name)) {
-      warnBadVendoredStyleName(name, owner);
-    } else if (badStyleValueWithSemicolonPattern.test(value)) {
-      warnStyleValueWithSemicolon(name, value, owner);
+  Object.defineProperty(node, valueField, {
+    enumerable: descriptor.enumerable,
+    configurable: true,
+    get: function () {
+      return descriptor.get.call(this);
+    },
+    set: function (value) {
+      currentValue = '' + value;
+      descriptor.set.call(this, value);
     }
+  });
 
-    if (typeof value === 'number') {
-      if (isNaN(value)) {
-        warnStyleValueIsNaN(name, value, owner);
-      } else if (!isFinite(value)) {
-        warnStyleValueIsInfinity(name, value, owner);
-      }
+  var tracker = {
+    getValue: function () {
+      return currentValue;
+    },
+    setValue: function (value) {
+      currentValue = '' + value;
+    },
+    stopTracking: function () {
+      detachTracker(node);
+      delete node[valueField];
     }
   };
+  return tracker;
 }
 
-var warnValidStyle_1 = warnValidStyle$1;
+function track(node) {
+  if (getTracker(node)) {
+    return;
+  }
 
-{
-  var hyphenateStyleName$1 = hyphenateStyleName;
-  var warnValidStyle = warnValidStyle_1;
+  // TODO: Once it's just Fiber we can move this to node._wrapperState
+  node._valueTracker = trackValueOnNode(node);
 }
 
-var hasShorthandPropertyBug = false;
-if (ExecutionEnvironment.canUseDOM) {
-  var tempStyle = document.createElement('div').style;
-  try {
-    // IE8 throws "Invalid argument." if resetting shorthand style properties.
-    tempStyle.font = '';
-  } catch (e) {
-    hasShorthandPropertyBug = true;
+function updateValueIfChanged(node) {
+  if (!node) {
+    return false;
   }
-}
 
-/**
- * Operations for dealing with CSS properties.
- */
-var CSSPropertyOperations = {
-  /**
-   * This creates a string that is expected to be equivalent to the style
-   * attribute generated by server-side rendering. It by-passes warnings and
-   * security checks so it's not safe to use this value for anything other than
-   * comparison. It is only used in DEV for SSR validation.
-   */
-  createDangerousStringForStyles: function (styles) {
-    {
-      var serialized = '';
-      var delimiter = '';
-      for (var styleName in styles) {
-        if (!styles.hasOwnProperty(styleName)) {
-          continue;
-        }
-        var styleValue = styles[styleName];
-        if (styleValue != null) {
-          var isCustomProperty = styleName.indexOf('--') === 0;
-          serialized += delimiter + hyphenateStyleName$1(styleName) + ':';
-          serialized += dangerousStyleValue_1(styleName, styleValue, isCustomProperty);
+  var tracker = getTracker(node);
+  // if there is no tracker at this point it's unlikely
+  // that trying again will succeed
+  if (!tracker) {
+    return true;
+  }
 
-          delimiter = ';';
-        }
-      }
-      return serialized || null;
-    }
-  },
+  var lastValue = tracker.getValue();
+  var nextValue = getValueFromNode(node);
+  if (nextValue !== lastValue) {
+    tracker.setValue(nextValue);
+    return true;
+  }
+  return false;
+}
 
-  /**
-   * Sets the value for multiple styles on a node.  If a value is specified as
-   * '' (empty string), the corresponding style property will be unset.
-   *
-   * @param {DOMElement} node
-   * @param {object} styles
-   * @param {ReactDOMComponent} component
-   */
-  setValueForStyles: function (node, styles, component) {
-    var style = node.style;
-    for (var styleName in styles) {
-      if (!styles.hasOwnProperty(styleName)) {
-        continue;
-      }
-      var isCustomProperty = styleName.indexOf('--') === 0;
-      {
-        if (!isCustomProperty) {
-          warnValidStyle(styleName, styles[styleName], component);
-        }
-      }
-      var styleValue = dangerousStyleValue_1(styleName, styles[styleName], isCustomProperty);
-      if (styleName === 'float') {
-        styleName = 'cssFloat';
-      }
-      if (isCustomProperty) {
-        style.setProperty(styleName, styleValue);
-      } else if (styleValue) {
-        style[styleName] = styleValue;
-      } else {
-        var expansion = hasShorthandPropertyBug && CSSProperty_1.shorthandPropertyExpansions[styleName];
-        if (expansion) {
-          // Shorthand property that IE8 won't like unsetting, so unset each
-          // component to placate it
-          for (var individualStyleName in expansion) {
-            style[individualStyleName] = '';
-          }
-        } else {
-          style[styleName] = '';
-        }
-      }
-    }
+var eventTypes$1 = {
+  change: {
+    phasedRegistrationNames: {
+      bubbled: 'onChange',
+      captured: 'onChangeCapture'
+    },
+    dependencies: ['topBlur', 'topChange', 'topClick', 'topFocus', 'topInput', 'topKeyDown', 'topKeyUp', 'topSelectionChange']
   }
 };
 
-var CSSPropertyOperations_1 = CSSPropertyOperations;
-
-var ReactInvalidSetStateWarningHook = {};
-
-{
-  var warning$7 = require$$0;
-  var processingChildContext = false;
-
-  var warnInvalidSetState = function () {
-    warning$7(!processingChildContext, 'setState(...): Cannot call setState() inside getChildContext()');
-  };
-
-  ReactInvalidSetStateWarningHook = {
-    onBeginProcessingChildContext: function () {
-      processingChildContext = true;
-    },
-    onEndProcessingChildContext: function () {
-      processingChildContext = false;
-    },
-    onSetState: function () {
-      warnInvalidSetState();
-    }
-  };
+function createAndAccumulateChangeEvent(inst, nativeEvent, target) {
+  var event = SyntheticEvent$1.getPooled(eventTypes$1.change, inst, nativeEvent, target);
+  event.type = 'change';
+  // Flag this event loop as needing state restore.
+  enqueueStateRestore(target);
+  accumulateTwoPhaseDispatches(event);
+  return event;
 }
-
-var ReactInvalidSetStateWarningHook_1 = ReactInvalidSetStateWarningHook;
-
 /**
- * Copyright (c) 2016-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactHostOperationHistoryHook
- * 
+ * For IE shims
  */
+var activeElement = null;
+var activeElementInst = null;
 
-// Trust the developer to only use this with a true check
-var ReactHostOperationHistoryHook = null;
-
-{
-  var history = [];
-
-  ReactHostOperationHistoryHook = {
-    onHostOperation: function (operation) {
-      history.push(operation);
-    },
-    clearHistory: function () {
-      if (ReactHostOperationHistoryHook._preventClearing) {
-        // Should only be used for tests.
-        return;
-      }
-
-      history = [];
-    },
-    getHistory: function () {
-      return history;
-    }
-  };
+/**
+ * SECTION: handle `change` event
+ */
+function shouldUseChangeEvent(elem) {
+  var nodeName = elem.nodeName && elem.nodeName.toLowerCase();
+  return nodeName === 'select' || nodeName === 'input' && elem.type === 'file';
 }
 
-var ReactHostOperationHistoryHook_1 = ReactHostOperationHistoryHook;
-
-var ReactComponentTreeHook = ReactGlobalSharedState_1.ReactComponentTreeHook;
-
+function manualDispatchChangeEvent(nativeEvent) {
+  var event = createAndAccumulateChangeEvent(activeElementInst, nativeEvent, getEventTarget(nativeEvent));
 
+  // If change and propertychange bubbled, we'd just bind to it like all the
+  // other events and have it go through ReactBrowserEventEmitter. Since it
+  // doesn't, we manually listen for the events and so we have to enqueue and
+  // process the abstract event manually.
+  //
+  // Batching is necessary here in order to ensure that all event handlers run
+  // before the next rerender (including event handlers attached to ancestor
+  // elements instead of directly on the input). Without this, controlled
+  // components don't work properly in conjunction with event bubbling because
+  // the component is rerendered and the value reverted before all the event
+  // handlers can run. See https://github.com/facebook/react/issues/708.
+  batchedUpdates(runEventInBatch, event);
+}
 
-{
-  var warning$6 = require$$0;
+function runEventInBatch(event) {
+  enqueueEvents(event);
+  processEventQueue(false);
 }
 
-// Trust the developer to only use this with a true check
-var ReactDebugTool$1 = null;
+function getInstIfValueChanged(targetInst) {
+  var targetNode = getNodeFromInstance$1(targetInst);
+  if (updateValueIfChanged(targetNode)) {
+    return targetInst;
+  }
+}
 
-{
-  var hooks = [];
-  var didHookThrowForEvent = {};
+function getTargetInstForChangeEvent(topLevelType, targetInst) {
+  if (topLevelType === 'topChange') {
+    return targetInst;
+  }
+}
 
-  var callHook = function (event, fn, context, arg1, arg2, arg3, arg4, arg5) {
-    try {
-      fn.call(context, arg1, arg2, arg3, arg4, arg5);
-    } catch (e) {
-      warning$6(didHookThrowForEvent[event], 'Exception thrown by hook while handling %s: %s', event, e + '\n' + e.stack);
-      didHookThrowForEvent[event] = true;
-    }
-  };
+/**
+ * SECTION: handle `input` event
+ */
+var isInputEventSupported = false;
+if (ExecutionEnvironment.canUseDOM) {
+  // IE9 claims to support the input event but fails to trigger it when
+  // deleting text, so we ignore its input events.
+  isInputEventSupported = isEventSupported('input') && (!document.documentMode || document.documentMode > 9);
+}
 
-  var emitEvent = function (event, arg1, arg2, arg3, arg4, arg5) {
-    for (var i = 0; i < hooks.length; i++) {
-      var hook = hooks[i];
-      var fn = hook[event];
-      if (fn) {
-        callHook(event, fn, hook, arg1, arg2, arg3, arg4, arg5);
-      }
-    }
-  };
+/**
+ * (For IE <=9) Starts tracking propertychange events on the passed-in element
+ * and override the value property so that we can distinguish user events from
+ * value changes in JS.
+ */
+function startWatchingForValueChange(target, targetInst) {
+  activeElement = target;
+  activeElementInst = targetInst;
+  activeElement.attachEvent('onpropertychange', handlePropertyChange);
+}
 
-  var isProfiling = false;
-  var flushHistory = [];
-  var lifeCycleTimerStack = [];
-  var currentFlushNesting = 0;
-  var currentFlushMeasurements = [];
-  var currentFlushStartTime = 0;
-  var currentTimerDebugID = null;
-  var currentTimerStartTime = 0;
-  var currentTimerNestedFlushDuration = 0;
-  var currentTimerType = null;
-
-  var lifeCycleTimerHasWarned = false;
-
-  var clearHistory = function () {
-    ReactComponentTreeHook.purgeUnmountedComponents();
-    ReactHostOperationHistoryHook_1.clearHistory();
-  };
+/**
+ * (For IE <=9) Removes the event listeners from the currently-tracked element,
+ * if any exists.
+ */
+function stopWatchingForValueChange() {
+  if (!activeElement) {
+    return;
+  }
+  activeElement.detachEvent('onpropertychange', handlePropertyChange);
+  activeElement = null;
+  activeElementInst = null;
+}
 
-  var getTreeSnapshot = function (registeredIDs) {
-    return registeredIDs.reduce(function (tree, id) {
-      var ownerID = ReactComponentTreeHook.getOwnerID(id);
-      var parentID = ReactComponentTreeHook.getParentID(id);
-      tree[id] = {
-        displayName: ReactComponentTreeHook.getDisplayName(id),
-        text: ReactComponentTreeHook.getText(id),
-        updateCount: ReactComponentTreeHook.getUpdateCount(id),
-        childIDs: ReactComponentTreeHook.getChildIDs(id),
-        // Text nodes don't have owners but this is close enough.
-        ownerID: ownerID || parentID && ReactComponentTreeHook.getOwnerID(parentID) || 0,
-        parentID: parentID
-      };
-      return tree;
-    }, {});
-  };
+/**
+ * (For IE <=9) Handles a propertychange event, sending a `change` event if
+ * the value of the active element has changed.
+ */
+function handlePropertyChange(nativeEvent) {
+  if (nativeEvent.propertyName !== 'value') {
+    return;
+  }
+  if (getInstIfValueChanged(activeElementInst)) {
+    manualDispatchChangeEvent(nativeEvent);
+  }
+}
 
-  var resetMeasurements = function () {
-    var previousStartTime = currentFlushStartTime;
-    var previousMeasurements = currentFlushMeasurements;
-    var previousOperations = ReactHostOperationHistoryHook_1.getHistory();
+function handleEventsForInputEventPolyfill(topLevelType, target, targetInst) {
+  if (topLevelType === 'topFocus') {
+    // In IE9, propertychange fires for most input events but is buggy and
+    // doesn't fire when text is deleted, but conveniently, selectionchange
+    // appears to fire in all of the remaining cases so we catch those and
+    // forward the event if the value has changed
+    // In either case, we don't want to call the event handler if the value
+    // is changed from JS so we redefine a setter for `.value` that updates
+    // our activeElementValue variable, allowing us to ignore those changes
+    //
+    // stopWatching() should be a noop here but we call it just in case we
+    // missed a blur event somehow.
+    stopWatchingForValueChange();
+    startWatchingForValueChange(target, targetInst);
+  } else if (topLevelType === 'topBlur') {
+    stopWatchingForValueChange();
+  }
+}
 
-    if (currentFlushNesting === 0) {
-      currentFlushStartTime = 0;
-      currentFlushMeasurements = [];
-      clearHistory();
-      return;
-    }
+// For IE8 and IE9.
+function getTargetInstForInputEventPolyfill(topLevelType, targetInst) {
+  if (topLevelType === 'topSelectionChange' || topLevelType === 'topKeyUp' || topLevelType === 'topKeyDown') {
+    // On the selectionchange event, the target is just document which isn't
+    // helpful for us so just check activeElement instead.
+    //
+    // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire
+    // propertychange on the first input event after setting `value` from a
+    // script and fires only keydown, keypress, keyup. Catching keyup usually
+    // gets it and catching keydown lets us fire an event for the first
+    // keystroke if user does a key repeat (it'll be a little delayed: right
+    // before the second keystroke). Other input methods (e.g., paste) seem to
+    // fire selectionchange normally.
+    return getInstIfValueChanged(activeElementInst);
+  }
+}
 
-    if (previousMeasurements.length || previousOperations.length) {
-      var registeredIDs = ReactComponentTreeHook.getRegisteredIDs();
-      flushHistory.push({
-        duration: performanceNow() - previousStartTime,
-        measurements: previousMeasurements || [],
-        operations: previousOperations || [],
-        treeSnapshot: getTreeSnapshot(registeredIDs)
-      });
-    }
+/**
+ * SECTION: handle `click` event
+ */
+function shouldUseClickEvent(elem) {
+  // Use the `click` event to detect changes to checkbox and radio inputs.
+  // This approach works across all browsers, whereas `change` does not fire
+  // until `blur` in IE8.
+  var nodeName = elem.nodeName;
+  return nodeName && nodeName.toLowerCase() === 'input' && (elem.type === 'checkbox' || elem.type === 'radio');
+}
 
-    clearHistory();
-    currentFlushStartTime = performanceNow();
-    currentFlushMeasurements = [];
-  };
+function getTargetInstForClickEvent(topLevelType, targetInst) {
+  if (topLevelType === 'topClick') {
+    return getInstIfValueChanged(targetInst);
+  }
+}
 
-  var checkDebugID = function (debugID) {
-    var allowRoot = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+function getTargetInstForInputOrChangeEvent(topLevelType, targetInst) {
+  if (topLevelType === 'topInput' || topLevelType === 'topChange') {
+    return getInstIfValueChanged(targetInst);
+  }
+}
 
-    if (allowRoot && debugID === 0) {
-      return;
-    }
-    if (!debugID) {
-      warning$6(false, 'ReactDebugTool: debugID may not be empty.');
-    }
-  };
+function handleControlledInputBlur(inst, node) {
+  // TODO: In IE, inst is occasionally null. Why?
+  if (inst == null) {
+    return;
+  }
 
-  var beginLifeCycleTimer = function (debugID, timerType) {
-    if (currentFlushNesting === 0) {
-      return;
-    }
-    if (currentTimerType && !lifeCycleTimerHasWarned) {
-      warning$6(false, 'There is an internal error in the React performance measurement code.' + '\n\nDid not expect %s timer to start while %s timer is still in ' + 'progress for %s instance.', timerType, currentTimerType || 'no', debugID === currentTimerDebugID ? 'the same' : 'another');
-      lifeCycleTimerHasWarned = true;
-    }
-    currentTimerStartTime = performanceNow();
-    currentTimerNestedFlushDuration = 0;
-    currentTimerDebugID = debugID;
-    currentTimerType = timerType;
-  };
+  // Fiber and ReactDOM keep wrapper state in separate places
+  var state = inst._wrapperState || node._wrapperState;
 
-  var endLifeCycleTimer = function (debugID, timerType) {
-    if (currentFlushNesting === 0) {
-      return;
-    }
-    if (currentTimerType !== timerType && !lifeCycleTimerHasWarned) {
-      warning$6(false, 'There is an internal error in the React performance measurement code. ' + 'We did not expect %s timer to stop while %s timer is still in ' + 'progress for %s instance. Please report this as a bug in React.', timerType, currentTimerType || 'no', debugID === currentTimerDebugID ? 'the same' : 'another');
-      lifeCycleTimerHasWarned = true;
-    }
-    if (isProfiling) {
-      currentFlushMeasurements.push({
-        timerType: timerType,
-        instanceID: debugID,
-        duration: performanceNow() - currentTimerStartTime - currentTimerNestedFlushDuration
-      });
-    }
-    currentTimerStartTime = 0;
-    currentTimerNestedFlushDuration = 0;
-    currentTimerDebugID = null;
-    currentTimerType = null;
-  };
+  if (!state || !state.controlled || node.type !== 'number') {
+    return;
+  }
 
-  var pauseCurrentLifeCycleTimer = function () {
-    var currentTimer = {
-      startTime: currentTimerStartTime,
-      nestedFlushStartTime: performanceNow(),
-      debugID: currentTimerDebugID,
-      timerType: currentTimerType
-    };
-    lifeCycleTimerStack.push(currentTimer);
-    currentTimerStartTime = 0;
-    currentTimerNestedFlushDuration = 0;
-    currentTimerDebugID = null;
-    currentTimerType = null;
-  };
+  // If controlled, assign the value attribute to the current value on blur
+  var value = '' + node.value;
+  if (node.getAttribute('value') !== value) {
+    node.setAttribute('value', value);
+  }
+}
 
-  var resumeCurrentLifeCycleTimer = function () {
-    var _lifeCycleTimerStack$ = lifeCycleTimerStack.pop(),
-        startTime = _lifeCycleTimerStack$.startTime,
-        nestedFlushStartTime = _lifeCycleTimerStack$.nestedFlushStartTime,
-        debugID = _lifeCycleTimerStack$.debugID,
-        timerType = _lifeCycleTimerStack$.timerType;
-
-    var nestedFlushDuration = performanceNow() - nestedFlushStartTime;
-    currentTimerStartTime = startTime;
-    currentTimerNestedFlushDuration += nestedFlushDuration;
-    currentTimerDebugID = debugID;
-    currentTimerType = timerType;
-  };
+/**
+ * This plugin creates an `onChange` event that normalizes change events
+ * across form elements. This event fires at a time when it's possible to
+ * change the element's value without seeing a flicker.
+ *
+ * Supported elements are:
+ * - input (see `isTextInputElement`)
+ * - textarea
+ * - select
+ */
+var ChangeEventPlugin = {
+  eventTypes: eventTypes$1,
 
-  var lastMarkTimeStamp = 0;
-  var canUsePerformanceMeasure = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function';
+  _isInputEventSupported: isInputEventSupported,
 
-  var shouldMark = function (debugID) {
-    if (!isProfiling || !canUsePerformanceMeasure) {
-      return false;
-    }
-    var element = ReactComponentTreeHook.getElement(debugID);
-    if (element == null || typeof element !== 'object') {
-      return false;
-    }
-    var isHostElement = typeof element.type === 'string';
-    if (isHostElement) {
-      return false;
-    }
-    return true;
-  };
+  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+    var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window;
 
-  var markBegin = function (debugID, markType) {
-    if (!shouldMark(debugID)) {
-      return;
+    var getTargetInstFunc, handleEventFunc;
+    if (shouldUseChangeEvent(targetNode)) {
+      getTargetInstFunc = getTargetInstForChangeEvent;
+    } else if (isTextInputElement(targetNode)) {
+      if (isInputEventSupported) {
+        getTargetInstFunc = getTargetInstForInputOrChangeEvent;
+      } else {
+        getTargetInstFunc = getTargetInstForInputEventPolyfill;
+        handleEventFunc = handleEventsForInputEventPolyfill;
+      }
+    } else if (shouldUseClickEvent(targetNode)) {
+      getTargetInstFunc = getTargetInstForClickEvent;
     }
 
-    var markName = debugID + '::' + markType;
-    lastMarkTimeStamp = performanceNow();
-    performance.mark(markName);
-  };
-
-  var markEnd = function (debugID, markType) {
-    if (!shouldMark(debugID)) {
-      return;
+    if (getTargetInstFunc) {
+      var inst = getTargetInstFunc(topLevelType, targetInst);
+      if (inst) {
+        var event = createAndAccumulateChangeEvent(inst, nativeEvent, nativeEventTarget);
+        return event;
+      }
     }
 
-    var markName = debugID + '::' + markType;
-    var displayName = ReactComponentTreeHook.getDisplayName(debugID) || 'Unknown';
-
-    // Chrome has an issue of dropping markers recorded too fast:
-    // https://bugs.chromium.org/p/chromium/issues/detail?id=640652
-    // To work around this, we will not report very small measurements.
-    // I determined the magic number by tweaking it back and forth.
-    // 0.05ms was enough to prevent the issue, but I set it to 0.1ms to be safe.
-    // When the bug is fixed, we can `measure()` unconditionally if we want to.
-    var timeStamp = performanceNow();
-    if (timeStamp - lastMarkTimeStamp > 0.1) {
-      var measurementName = displayName + ' [' + markType + ']';
-      performance.measure(measurementName, markName);
+    if (handleEventFunc) {
+      handleEventFunc(topLevelType, targetNode, targetInst);
     }
 
-    performance.clearMarks(markName);
-    if (measurementName) {
-      performance.clearMeasures(measurementName);
+    // When blurring, set the value attribute for number inputs
+    if (topLevelType === 'topBlur') {
+      handleControlledInputBlur(targetInst, targetNode);
     }
-  };
-
-  ReactDebugTool$1 = {
-    addHook: function (hook) {
-      hooks.push(hook);
-    },
-    removeHook: function (hook) {
-      for (var i = 0; i < hooks.length; i++) {
-        if (hooks[i] === hook) {
-          hooks.splice(i, 1);
-          i--;
-        }
-      }
-    },
-    isProfiling: function () {
-      return isProfiling;
-    },
-    beginProfiling: function () {
-      if (isProfiling) {
-        return;
-      }
+  }
+};
 
-      isProfiling = true;
-      flushHistory.length = 0;
-      resetMeasurements();
-      ReactDebugTool$1.addHook(ReactHostOperationHistoryHook_1);
-    },
-    endProfiling: function () {
-      if (!isProfiling) {
-        return;
-      }
+/**
+ * Module that is injectable into `EventPluginHub`, that specifies a
+ * deterministic ordering of `EventPlugin`s. A convenient way to reason about
+ * plugins, without having to package every one of them. This is better than
+ * having plugins be ordered in the same order that they are injected because
+ * that ordering would be influenced by the packaging order.
+ * `ResponderEventPlugin` must occur before `SimpleEventPlugin` so that
+ * preventing default on events is convenient in `SimpleEventPlugin` handlers.
+ */
+var DOMEventPluginOrder = ['ResponderEventPlugin', 'SimpleEventPlugin', 'TapEventPlugin', 'EnterLeaveEventPlugin', 'ChangeEventPlugin', 'SelectEventPlugin', 'BeforeInputEventPlugin'];
 
-      isProfiling = false;
-      resetMeasurements();
-      ReactDebugTool$1.removeHook(ReactHostOperationHistoryHook_1);
-    },
-    getFlushHistory: function () {
-      return flushHistory;
-    },
-    onBeginFlush: function () {
-      currentFlushNesting++;
-      resetMeasurements();
-      pauseCurrentLifeCycleTimer();
-      emitEvent('onBeginFlush');
-    },
-    onEndFlush: function () {
-      resetMeasurements();
-      currentFlushNesting--;
-      resumeCurrentLifeCycleTimer();
-      emitEvent('onEndFlush');
-    },
-    onBeginLifeCycleTimer: function (debugID, timerType) {
-      checkDebugID(debugID);
-      emitEvent('onBeginLifeCycleTimer', debugID, timerType);
-      markBegin(debugID, timerType);
-      beginLifeCycleTimer(debugID, timerType);
-    },
-    onEndLifeCycleTimer: function (debugID, timerType) {
-      checkDebugID(debugID);
-      endLifeCycleTimer(debugID, timerType);
-      markEnd(debugID, timerType);
-      emitEvent('onEndLifeCycleTimer', debugID, timerType);
-    },
-    onBeginProcessingChildContext: function () {
-      emitEvent('onBeginProcessingChildContext');
-    },
-    onEndProcessingChildContext: function () {
-      emitEvent('onEndProcessingChildContext');
-    },
-    onHostOperation: function (operation) {
-      checkDebugID(operation.instanceID);
-      emitEvent('onHostOperation', operation);
-    },
-    onSetState: function () {
-      emitEvent('onSetState');
-    },
-    onSetChildren: function (debugID, childDebugIDs) {
-      checkDebugID(debugID);
-      childDebugIDs.forEach(checkDebugID);
-      emitEvent('onSetChildren', debugID, childDebugIDs);
-    },
-    onBeforeMountComponent: function (debugID, element, parentDebugID) {
-      checkDebugID(debugID);
-      checkDebugID(parentDebugID, true);
-      emitEvent('onBeforeMountComponent', debugID, element, parentDebugID);
-      markBegin(debugID, 'mount');
-    },
-    onMountComponent: function (debugID) {
-      checkDebugID(debugID);
-      markEnd(debugID, 'mount');
-      emitEvent('onMountComponent', debugID);
-    },
-    onBeforeUpdateComponent: function (debugID, element) {
-      checkDebugID(debugID);
-      emitEvent('onBeforeUpdateComponent', debugID, element);
-      markBegin(debugID, 'update');
-    },
-    onUpdateComponent: function (debugID) {
-      checkDebugID(debugID);
-      markEnd(debugID, 'update');
-      emitEvent('onUpdateComponent', debugID);
-    },
-    onBeforeUnmountComponent: function (debugID) {
-      checkDebugID(debugID);
-      emitEvent('onBeforeUnmountComponent', debugID);
-      markBegin(debugID, 'unmount');
-    },
-    onUnmountComponent: function (debugID) {
-      checkDebugID(debugID);
-      markEnd(debugID, 'unmount');
-      emitEvent('onUnmountComponent', debugID);
-    },
-    onTestEvent: function () {
-      emitEvent('onTestEvent');
-    }
-  };
+/**
+ * @interface UIEvent
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/
+ */
+var UIEventInterface = {
+  view: null,
+  detail: null
+};
 
-  ReactDebugTool$1.addHook(ReactInvalidSetStateWarningHook_1);
-  ReactDebugTool$1.addHook(ReactComponentTreeHook);
-  var url = ExecutionEnvironment.canUseDOM && window.location.href || '';
-  if (/[?&]react_perf\b/.test(url)) {
-    ReactDebugTool$1.beginProfiling();
-  }
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticEvent}
+ */
+function SyntheticUIEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
 }
 
-var ReactDebugTool_1 = ReactDebugTool$1;
+SyntheticEvent$1.augmentClass(SyntheticUIEvent, UIEventInterface);
 
-// Trust the developer to only use ReactInstrumentation with a true check
-
-var debugTool = null;
-
-{
-  var ReactDebugTool = ReactDebugTool_1;
-  debugTool = ReactDebugTool;
-}
-
-var ReactInstrumentation = { debugTool: debugTool };
+/**
+ * Translation from modifier key to the associated property in the event.
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers
+ */
 
-{
-  var warning$5 = require$$0;
-}
+var modifierKeyToProp = {
+  Alt: 'altKey',
+  Control: 'ctrlKey',
+  Meta: 'metaKey',
+  Shift: 'shiftKey'
+};
 
-// isAttributeNameSafe() is currently duplicated in DOMMarkupOperations.
-// TODO: Find a better place for this.
-var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + DOMProperty_1.ATTRIBUTE_NAME_START_CHAR + '][' + DOMProperty_1.ATTRIBUTE_NAME_CHAR + ']*$');
-var illegalAttributeNameCache = {};
-var validatedAttributeNameCache = {};
-function isAttributeNameSafe(attributeName) {
-  if (validatedAttributeNameCache.hasOwnProperty(attributeName)) {
-    return true;
-  }
-  if (illegalAttributeNameCache.hasOwnProperty(attributeName)) {
-    return false;
-  }
-  if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) {
-    validatedAttributeNameCache[attributeName] = true;
-    return true;
-  }
-  illegalAttributeNameCache[attributeName] = true;
-  {
-    warning$5(false, 'Invalid attribute name: `%s`', attributeName);
+// IE8 does not implement getModifierState so we simply map it to the only
+// modifier keys exposed by the event itself, does not support Lock-keys.
+// Currently, all major browsers except Chrome seems to support Lock-keys.
+function modifierStateGetter(keyArg) {
+  var syntheticEvent = this;
+  var nativeEvent = syntheticEvent.nativeEvent;
+  if (nativeEvent.getModifierState) {
+    return nativeEvent.getModifierState(keyArg);
   }
-  return false;
+  var keyProp = modifierKeyToProp[keyArg];
+  return keyProp ? !!nativeEvent[keyProp] : false;
 }
 
-// shouldIgnoreValue() is currently duplicated in DOMMarkupOperations.
-// TODO: Find a better place for this.
-function shouldIgnoreValue(propertyInfo, value) {
-  return value == null || propertyInfo.hasBooleanValue && !value || propertyInfo.hasNumericValue && isNaN(value) || propertyInfo.hasPositiveNumericValue && value < 1 || propertyInfo.hasOverloadedBooleanValue && value === false;
+function getEventModifierState(nativeEvent) {
+  return modifierStateGetter;
 }
 
 /**
- * Operations for dealing with DOM properties.
+ * @interface MouseEvent
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/
  */
-var DOMPropertyOperations = {
-  setAttributeForID: function (node, id) {
-    node.setAttribute(DOMProperty_1.ID_ATTRIBUTE_NAME, id);
-  },
-
-  setAttributeForRoot: function (node) {
-    node.setAttribute(DOMProperty_1.ROOT_ATTRIBUTE_NAME, '');
-  },
-
-  /**
-   * Get the value for a property on a node. Only used in DEV for SSR validation.
-   * The "expected" argument is used as a hint of what the expected value is.
-   * Some properties have multiple equivalent values.
-   */
-  getValueForProperty: function (node, name, expected) {
-    {
-      var propertyInfo = DOMProperty_1.getPropertyInfo(name);
-      if (propertyInfo) {
-        var mutationMethod = propertyInfo.mutationMethod;
-        if (mutationMethod || propertyInfo.mustUseProperty) {
-          return node[propertyInfo.propertyName];
-        } else {
-          var attributeName = propertyInfo.attributeName;
+var MouseEventInterface = {
+  screenX: null,
+  screenY: null,
+  clientX: null,
+  clientY: null,
+  pageX: null,
+  pageY: null,
+  ctrlKey: null,
+  shiftKey: null,
+  altKey: null,
+  metaKey: null,
+  getModifierState: getEventModifierState,
+  button: null,
+  buttons: null,
+  relatedTarget: function (event) {
+    return event.relatedTarget || (event.fromElement === event.srcElement ? event.toElement : event.fromElement);
+  }
+};
 
-          var stringValue = null;
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticUIEvent}
+ */
+function SyntheticMouseEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
+}
 
-          if (propertyInfo.hasOverloadedBooleanValue) {
-            if (node.hasAttribute(attributeName)) {
-              var value = node.getAttribute(attributeName);
-              if (value === '') {
-                return true;
-              }
-              if (shouldIgnoreValue(propertyInfo, expected)) {
-                return value;
-              }
-              if (value === '' + expected) {
-                return expected;
-              }
-              return value;
-            }
-          } else if (node.hasAttribute(attributeName)) {
-            if (shouldIgnoreValue(propertyInfo, expected)) {
-              // We had an attribute but shouldn't have had one, so read it
-              // for the error message.
-              return node.getAttribute(attributeName);
-            }
-            if (propertyInfo.hasBooleanValue) {
-              // If this was a boolean, it doesn't matter what the value is
-              // the fact that we have it is the same as the expected.
-              return expected;
-            }
-            // Even if this property uses a namespace we use getAttribute
-            // because we assume its namespaced name is the same as our config.
-            // To use getAttributeNS we need the local name which we don't have
-            // in our config atm.
-            stringValue = node.getAttribute(attributeName);
-          }
+SyntheticUIEvent.augmentClass(SyntheticMouseEvent, MouseEventInterface);
 
-          if (shouldIgnoreValue(propertyInfo, expected)) {
-            return stringValue === null ? expected : stringValue;
-          } else if (stringValue === '' + expected) {
-            return expected;
-          } else {
-            return stringValue;
-          }
-        }
-      }
-    }
+var eventTypes$2 = {
+  mouseEnter: {
+    registrationName: 'onMouseEnter',
+    dependencies: ['topMouseOut', 'topMouseOver']
   },
+  mouseLeave: {
+    registrationName: 'onMouseLeave',
+    dependencies: ['topMouseOut', 'topMouseOver']
+  }
+};
 
-  /**
-   * Get the value for a attribute on a node. Only used in DEV for SSR validation.
-   * The third argument is used as a hint of what the expected value is. Some
-   * attributes have multiple equivalent values.
-   */
-  getValueForAttribute: function (node, name, expected) {
-    {
-      if (!isAttributeNameSafe(name)) {
-        return;
-      }
-      if (!node.hasAttribute(name)) {
-        return expected === undefined ? undefined : null;
-      }
-      var value = node.getAttribute(name);
-      if (value === '' + expected) {
-        return expected;
-      }
-      return value;
-    }
-  },
+var EnterLeaveEventPlugin = {
+  eventTypes: eventTypes$2,
 
   /**
-   * Sets the value for a property on a node.
-   *
-   * @param {DOMElement} node
-   * @param {string} name
-   * @param {*} value
+   * For almost every interaction we care about, there will be both a top-level
+   * `mouseover` and `mouseout` event that occurs. Only use `mouseout` so that
+   * we do not extract duplicate events. However, moving the mouse into the
+   * browser from outside will not fire a `mouseout` event. In this case, we use
+   * the `mouseover` top-level event.
    */
-  setValueForProperty: function (node, name, value) {
-    var propertyInfo = DOMProperty_1.getPropertyInfo(name);
+  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+    if (topLevelType === 'topMouseOver' && (nativeEvent.relatedTarget || nativeEvent.fromElement)) {
+      return null;
+    }
+    if (topLevelType !== 'topMouseOut' && topLevelType !== 'topMouseOver') {
+      // Must not be a mouse in or mouse out - ignoring.
+      return null;
+    }
 
-    if (propertyInfo && DOMProperty_1.shouldSetAttribute(name, value)) {
-      var mutationMethod = propertyInfo.mutationMethod;
-      if (mutationMethod) {
-        mutationMethod(node, value);
-      } else if (shouldIgnoreValue(propertyInfo, value)) {
-        DOMPropertyOperations.deleteValueForProperty(node, name);
-        return;
-      } else if (propertyInfo.mustUseProperty) {
-        // Contrary to `setAttribute`, object properties are properly
-        // `toString`ed by IE8/9.
-        node[propertyInfo.propertyName] = value;
+    var win;
+    if (nativeEventTarget.window === nativeEventTarget) {
+      // `nativeEventTarget` is probably a window object.
+      win = nativeEventTarget;
+    } else {
+      // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
+      var doc = nativeEventTarget.ownerDocument;
+      if (doc) {
+        win = doc.defaultView || doc.parentWindow;
       } else {
-        var attributeName = propertyInfo.attributeName;
-        var namespace = propertyInfo.attributeNamespace;
-        // `setAttribute` with objects becomes only `[object]` in IE8/9,
-        // ('' + value) makes it output the correct toString()-value.
-        if (namespace) {
-          node.setAttributeNS(namespace, attributeName, '' + value);
-        } else if (propertyInfo.hasBooleanValue || propertyInfo.hasOverloadedBooleanValue && value === true) {
-          node.setAttribute(attributeName, '');
-        } else {
-          node.setAttribute(attributeName, '' + value);
-        }
+        win = window;
       }
-    } else {
-      DOMPropertyOperations.setValueForAttribute(node, name, DOMProperty_1.shouldSetAttribute(name, value) ? value : null);
-      return;
-    }
-
-    {
-      var payload = {};
-      payload[name] = value;
-      ReactInstrumentation.debugTool.onHostOperation({
-        instanceID: ReactDOMComponentTree_1.getInstanceFromNode(node)._debugID,
-        type: 'update attribute',
-        payload: payload
-      });
     }
-  },
 
-  setValueForAttribute: function (node, name, value) {
-    if (!isAttributeNameSafe(name)) {
-      return;
-    }
-    if (value == null) {
-      node.removeAttribute(name);
+    var from;
+    var to;
+    if (topLevelType === 'topMouseOut') {
+      from = targetInst;
+      var related = nativeEvent.relatedTarget || nativeEvent.toElement;
+      to = related ? getClosestInstanceFromNode(related) : null;
     } else {
-      node.setAttribute(name, '' + value);
+      // Moving to a node from outside the window.
+      from = null;
+      to = targetInst;
     }
 
-    {
-      var payload = {};
-      payload[name] = value;
-      ReactInstrumentation.debugTool.onHostOperation({
-        instanceID: ReactDOMComponentTree_1.getInstanceFromNode(node)._debugID,
-        type: 'update attribute',
-        payload: payload
-      });
+    if (from === to) {
+      // Nothing pertains to our managed components.
+      return null;
     }
-  },
 
-  /**
-   * Deletes an attributes from a node.
-   *
-   * @param {DOMElement} node
-   * @param {string} name
-   */
-  deleteValueForAttribute: function (node, name) {
-    node.removeAttribute(name);
-    {
-      ReactInstrumentation.debugTool.onHostOperation({
-        instanceID: ReactDOMComponentTree_1.getInstanceFromNode(node)._debugID,
-        type: 'remove attribute',
-        payload: name
-      });
-    }
-  },
+    var fromNode = from == null ? win : getNodeFromInstance$1(from);
+    var toNode = to == null ? win : getNodeFromInstance$1(to);
 
-  /**
-   * Deletes the value for a property on a node.
-   *
-   * @param {DOMElement} node
-   * @param {string} name
-   */
-  deleteValueForProperty: function (node, name) {
-    var propertyInfo = DOMProperty_1.getPropertyInfo(name);
-    if (propertyInfo) {
-      var mutationMethod = propertyInfo.mutationMethod;
-      if (mutationMethod) {
-        mutationMethod(node, undefined);
-      } else if (propertyInfo.mustUseProperty) {
-        var propName = propertyInfo.propertyName;
-        if (propertyInfo.hasBooleanValue) {
-          node[propName] = false;
-        } else {
-          node[propName] = '';
-        }
-      } else {
-        node.removeAttribute(propertyInfo.attributeName);
-      }
-    } else {
-      node.removeAttribute(name);
-    }
+    var leave = SyntheticMouseEvent.getPooled(eventTypes$2.mouseLeave, from, nativeEvent, nativeEventTarget);
+    leave.type = 'mouseleave';
+    leave.target = fromNode;
+    leave.relatedTarget = toNode;
 
-    {
-      ReactInstrumentation.debugTool.onHostOperation({
-        instanceID: ReactDOMComponentTree_1.getInstanceFromNode(node)._debugID,
-        type: 'remove attribute',
-        payload: name
-      });
-    }
-  }
-};
+    var enter = SyntheticMouseEvent.getPooled(eventTypes$2.mouseEnter, to, nativeEvent, nativeEventTarget);
+    enter.type = 'mouseenter';
+    enter.target = toNode;
+    enter.relatedTarget = fromNode;
 
-var DOMPropertyOperations_1 = DOMPropertyOperations;
+    accumulateEnterLeaveDispatches(leave, enter, from, to);
 
-var ReactControlledValuePropTypes = {
-  checkPropTypes: null
+    return [leave, enter];
+  }
 };
 
-{
-  var warning$9 = require$$0;
-  var emptyFunction$2 = emptyFunction;
-  var PropTypes = propTypes;
-  var ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';
+/**
+ * `ReactInstanceMap` maintains a mapping from a public facing stateful
+ * instance (key) and the internal representation (value). This allows public
+ * methods to accept the user facing instance as an argument and map them back
+ * to internal methods.
+ *
+ * Note that this module is currently shared and assumed to be stateless.
+ * If this becomes an actual Map, that will break.
+ */
 
-  ReactControlledValuePropTypes.checkPropTypes = emptyFunction$2;
-  var hasReadOnlyValue = {
-    button: true,
-    checkbox: true,
-    image: true,
-    hidden: true,
-    radio: true,
-    reset: true,
-    submit: true
-  };
+/**
+ * This API should be called `delete` but we'd have to make sure to always
+ * transform these to strings for IE support. When this transform is fully
+ * supported we can rename it.
+ */
 
-  var propTypes$1 = {
-    value: function (props, propName, componentName) {
-      if (!props[propName] || hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled) {
-        return null;
-      }
-      return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
-    },
-    checked: function (props, propName, componentName) {
-      if (!props[propName] || props.onChange || props.readOnly || props.disabled) {
-        return null;
-      }
-      return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
-    },
-    onChange: PropTypes.func
-  };
 
-  var loggedTypeFailures = {};
+function get(key) {
+  return key._reactInternalFiber;
+}
 
-  /**
-   * Provide a linked `value` attribute for controlled forms. You should not use
-   * this outside of the ReactDOM controlled form components.
-   */
-  ReactControlledValuePropTypes.checkPropTypes = function (tagName, props, getStack) {
-    for (var propName in propTypes$1) {
-      if (propTypes$1.hasOwnProperty(propName)) {
-        var error = propTypes$1[propName](props, propName, tagName, 'prop', null, ReactPropTypesSecret);
-      }
-      if (error instanceof Error && !(error.message in loggedTypeFailures)) {
-        // Only monitor this failure once because there tends to be a lot of the
-        // same error.
-        loggedTypeFailures[error.message] = true;
+function has(key) {
+  return key._reactInternalFiber !== undefined;
+}
 
-        warning$9(false, 'Failed form propType: %s%s', error.message, getStack());
-      }
-    }
-  };
+function set(key, value) {
+  key._reactInternalFiber = value;
 }
 
-var ReactControlledValuePropTypes_1 = ReactControlledValuePropTypes;
+var ReactInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
 
-var getCurrentFiberOwnerName$3 = ReactDebugCurrentFiber_1.getCurrentFiberOwnerName;
+var ReactCurrentOwner = ReactInternals.ReactCurrentOwner;
+var ReactDebugCurrentFrame = ReactInternals.ReactDebugCurrentFrame;
 
-{
-  var _require2$3 = ReactDebugCurrentFiber_1,
-      getCurrentFiberStackAddendum$2 = _require2$3.getCurrentFiberStackAddendum;
+function getComponentName(fiber) {
+  var type = fiber.type;
 
-  var warning$8 = require$$0;
+  if (typeof type === 'string') {
+    return type;
+  }
+  if (typeof type === 'function') {
+    return type.displayName || type.name;
+  }
+  return null;
 }
 
+// Don't change these two values:
+var NoEffect = 0; //           0b00000000
+var PerformedWork = 1; //      0b00000001
 
+// You can change the rest (and add more).
+var Placement = 2; //          0b00000010
+var Update = 4; //             0b00000100
+var PlacementAndUpdate = 6; // 0b00000110
+var Deletion = 8; //           0b00001000
+var ContentReset = 16; //      0b00010000
+var Callback = 32; //          0b00100000
+var Err = 64; //               0b01000000
+var Ref = 128; //              0b10000000
 
-var didWarnValueDefaultValue = false;
-var didWarnCheckedDefaultChecked = false;
-var didWarnControlledToUncontrolled = false;
-var didWarnUncontrolledToControlled = false;
+var MOUNTING = 1;
+var MOUNTED = 2;
+var UNMOUNTED = 3;
 
-function isControlled(props) {
-  var usesChecked = props.type === 'checkbox' || props.type === 'radio';
-  return usesChecked ? props.checked != null : props.value != null;
+function isFiberMountedImpl(fiber) {
+  var node = fiber;
+  if (!fiber.alternate) {
+    // If there is no alternate, this might be a new tree that isn't inserted
+    // yet. If it is, then it will have a pending insertion effect on it.
+    if ((node.effectTag & Placement) !== NoEffect) {
+      return MOUNTING;
+    }
+    while (node['return']) {
+      node = node['return'];
+      if ((node.effectTag & Placement) !== NoEffect) {
+        return MOUNTING;
+      }
+    }
+  } else {
+    while (node['return']) {
+      node = node['return'];
+    }
+  }
+  if (node.tag === HostRoot) {
+    // TODO: Check if this was a nested HostRoot when used with
+    // renderContainerIntoSubtree.
+    return MOUNTED;
+  }
+  // If we didn't hit the root, that means that we're in an disconnected tree
+  // that has been unmounted.
+  return UNMOUNTED;
 }
 
-/**
- * Implements an <input> host component that allows setting these optional
- * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.
- *
- * If `checked` or `value` are not supplied (or null/undefined), user actions
- * that affect the checked state or value will trigger updates to the element.
- *
- * If they are supplied (and not null/undefined), the rendered element will not
- * trigger updates to the element. Instead, the props must change in order for
- * the rendered element to be updated.
- *
- * The rendered element will be initialized as unchecked (or `defaultChecked`)
- * with an empty value (or `defaultValue`).
- *
- * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html
- */
-var ReactDOMInput = {
-  getHostProps: function (element, props) {
-    var node = element;
-    var value = props.value;
-    var checked = props.checked;
-
-    var hostProps = _assign({
-      // Make sure we set .type before any other properties (setting .value
-      // before .type means .value is lost in IE11 and below)
-      type: undefined,
-      // Make sure we set .step before .value (setting .value before .step
-      // means .value is rounded on mount, based upon step precision)
-      step: undefined,
-      // Make sure we set .min & .max before .value (to ensure proper order
-      // in corner cases such as min or max deriving from value, e.g. Issue #7170)
-      min: undefined,
-      max: undefined
-    }, props, {
-      defaultChecked: undefined,
-      defaultValue: undefined,
-      value: value != null ? value : node._wrapperState.initialValue,
-      checked: checked != null ? checked : node._wrapperState.initialChecked
-    });
-
-    return hostProps;
-  },
-
-  initWrapperState: function (element, props) {
-    {
-      ReactControlledValuePropTypes_1.checkPropTypes('input', props, getCurrentFiberStackAddendum$2);
+function isFiberMounted(fiber) {
+  return isFiberMountedImpl(fiber) === MOUNTED;
+}
 
-      if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
-        warning$8(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerName$3() || 'A component', props.type);
-        didWarnCheckedDefaultChecked = true;
-      }
-      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
-        warning$8(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerName$3() || 'A component', props.type);
-        didWarnValueDefaultValue = true;
-      }
+function isMounted(component) {
+  {
+    var owner = ReactCurrentOwner.current;
+    if (owner !== null && owner.tag === ClassComponent) {
+      var ownerFiber = owner;
+      var instance = ownerFiber.stateNode;
+      warning(instance._warnedAboutRefsInRender, '%s is accessing isMounted inside its render() function. ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(ownerFiber) || 'A component');
+      instance._warnedAboutRefsInRender = true;
     }
+  }
 
-    var defaultValue = props.defaultValue;
-    var node = element;
-    node._wrapperState = {
-      initialChecked: props.checked != null ? props.checked : props.defaultChecked,
-      initialValue: props.value != null ? props.value : defaultValue,
-      controlled: isControlled(props)
-    };
-  },
+  var fiber = get(component);
+  if (!fiber) {
+    return false;
+  }
+  return isFiberMountedImpl(fiber) === MOUNTED;
+}
 
-  updateWrapper: function (element, props) {
-    var node = element;
-    {
-      var controlled = isControlled(props);
+function assertIsMounted(fiber) {
+  !(isFiberMountedImpl(fiber) === MOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
+}
 
-      if (!node._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) {
-        warning$8(false, 'A component is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components%s', props.type, getCurrentFiberStackAddendum$2());
-        didWarnUncontrolledToControlled = true;
-      }
-      if (node._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {
-        warning$8(false, 'A component is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components%s', props.type, getCurrentFiberStackAddendum$2());
-        didWarnControlledToUncontrolled = true;
-      }
+function findCurrentFiberUsingSlowPath(fiber) {
+  var alternate = fiber.alternate;
+  if (!alternate) {
+    // If there is no alternate, then we only need to check if it is mounted.
+    var state = isFiberMountedImpl(fiber);
+    !(state !== UNMOUNTED) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
+    if (state === MOUNTING) {
+      return null;
     }
-
-    var checked = props.checked;
-    if (checked != null) {
-      DOMPropertyOperations_1.setValueForProperty(node, 'checked', checked || false);
+    return fiber;
+  }
+  // If we have two possible branches, we'll walk backwards up to the root
+  // to see what path the root points to. On the way we may hit one of the
+  // special cases and we'll deal with them.
+  var a = fiber;
+  var b = alternate;
+  while (true) {
+    var parentA = a['return'];
+    var parentB = parentA ? parentA.alternate : null;
+    if (!parentA || !parentB) {
+      // We're at the root.
+      break;
     }
 
-    var value = props.value;
-    if (value != null) {
-      if (value === 0 && node.value === '') {
-        node.value = '0';
-        // Note: IE9 reports a number inputs as 'text', so check props instead.
-      } else if (props.type === 'number') {
-        // Simulate `input.valueAsNumber`. IE9 does not support it
-        var valueAsNumber = parseFloat(node.value) || 0;
-
-        if (
-        // eslint-disable-next-line
-        value != valueAsNumber ||
-        // eslint-disable-next-line
-        value == valueAsNumber && node.value != value) {
-          // Cast `value` to a string to ensure the value is set correctly. While
-          // browsers typically do this as necessary, jsdom doesn't.
-          node.value = '' + value;
+    // If both copies of the parent fiber point to the same child, we can
+    // assume that the child is current. This happens when we bailout on low
+    // priority: the bailed out fiber's child reuses the current child.
+    if (parentA.child === parentB.child) {
+      var child = parentA.child;
+      while (child) {
+        if (child === a) {
+          // We've determined that A is the current branch.
+          assertIsMounted(parentA);
+          return fiber;
         }
-      } else if (node.value !== '' + value) {
-        // Cast `value` to a string to ensure the value is set correctly. While
-        // browsers typically do this as necessary, jsdom doesn't.
-        node.value = '' + value;
+        if (child === b) {
+          // We've determined that B is the current branch.
+          assertIsMounted(parentA);
+          return alternate;
+        }
+        child = child.sibling;
       }
+      // We should never have an alternate for any mounting node. So the only
+      // way this could possibly happen is if this was unmounted, if at all.
+      invariant(false, 'Unable to find node on an unmounted component.');
+    }
+
+    if (a['return'] !== b['return']) {
+      // The return pointer of A and the return pointer of B point to different
+      // fibers. We assume that return pointers never criss-cross, so A must
+      // belong to the child set of A.return, and B must belong to the child
+      // set of B.return.
+      a = parentA;
+      b = parentB;
     } else {
-      if (props.value == null && props.defaultValue != null) {
-        // In Chrome, assigning defaultValue to certain input types triggers input validation.
-        // For number inputs, the display value loses trailing decimal points. For email inputs,
-        // Chrome raises "The specified value <x> is not a valid email address".
-        //
-        // Here we check to see if the defaultValue has actually changed, avoiding these problems
-        // when the user is inputting text
-        //
-        // https://github.com/facebook/react/issues/7253
-        if (node.defaultValue !== '' + props.defaultValue) {
-          node.defaultValue = '' + props.defaultValue;
+      // The return pointers point to the same fiber. We'll have to use the
+      // default, slow path: scan the child sets of each parent alternate to see
+      // which child belongs to which set.
+      //
+      // Search parent A's child set
+      var didFindChild = false;
+      var _child = parentA.child;
+      while (_child) {
+        if (_child === a) {
+          didFindChild = true;
+          a = parentA;
+          b = parentB;
+          break;
+        }
+        if (_child === b) {
+          didFindChild = true;
+          b = parentA;
+          a = parentB;
+          break;
         }
+        _child = _child.sibling;
       }
-      if (props.checked == null && props.defaultChecked != null) {
-        node.defaultChecked = !!props.defaultChecked;
+      if (!didFindChild) {
+        // Search parent B's child set
+        _child = parentB.child;
+        while (_child) {
+          if (_child === a) {
+            didFindChild = true;
+            a = parentB;
+            b = parentA;
+            break;
+          }
+          if (_child === b) {
+            didFindChild = true;
+            b = parentB;
+            a = parentA;
+            break;
+          }
+          _child = _child.sibling;
+        }
+        !didFindChild ? invariant(false, 'Child was not found in either parent set. This indicates a bug in React related to the return pointer. Please file an issue.') : void 0;
       }
     }
-  },
 
-  postMountWrapper: function (element, props) {
-    var node = element;
+    !(a.alternate === b) ? invariant(false, 'Return fibers should always be each others\' alternates. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+  }
+  // If the root is not a host container, we're in a disconnected tree. I.e.
+  // unmounted.
+  !(a.tag === HostRoot) ? invariant(false, 'Unable to find node on an unmounted component.') : void 0;
+  if (a.stateNode.current === a) {
+    // We've determined that A is the current branch.
+    return fiber;
+  }
+  // Otherwise B has to be current branch.
+  return alternate;
+}
 
-    // Detach value from defaultValue. We won't do anything if we're working on
-    // submit or reset inputs as those values & defaultValues are linked. They
-    // are not resetable nodes so this operation doesn't matter and actually
-    // removes browser-default values (eg "Submit Query") when no value is
-    // provided.
+function findCurrentHostFiber(parent) {
+  var currentParent = findCurrentFiberUsingSlowPath(parent);
+  if (!currentParent) {
+    return null;
+  }
 
-    switch (props.type) {
-      case 'submit':
-      case 'reset':
-        break;
-      case 'color':
-      case 'date':
-      case 'datetime':
-      case 'datetime-local':
-      case 'month':
-      case 'time':
-      case 'week':
-        // This fixes the no-show issue on iOS Safari and Android Chrome:
-        // https://github.com/facebook/react/issues/7233
-        node.value = '';
-        node.value = node.defaultValue;
-        break;
-      default:
-        node.value = node.value;
-        break;
+  // Next we'll drill down this component to find the first HostComponent/Text.
+  var node = currentParent;
+  while (true) {
+    if (node.tag === HostComponent || node.tag === HostText) {
+      return node;
+    } else if (node.child) {
+      node.child['return'] = node;
+      node = node.child;
+      continue;
     }
-
-    // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug
-    // this is needed to work around a chrome bug where setting defaultChecked
-    // will sometimes influence the value of checked (even after detachment).
-    // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
-    // We need to temporarily unset name to avoid disrupting radio button groups.
-    var name = node.name;
-    if (name !== '') {
-      node.name = '';
+    if (node === currentParent) {
+      return null;
     }
-    node.defaultChecked = !node.defaultChecked;
-    node.defaultChecked = !node.defaultChecked;
-    if (name !== '') {
-      node.name = name;
+    while (!node.sibling) {
+      if (!node['return'] || node['return'] === currentParent) {
+        return null;
+      }
+      node = node['return'];
     }
-  },
-
-  restoreControlledState: function (element, props) {
-    var node = element;
-    ReactDOMInput.updateWrapper(node, props);
-    updateNamedCousins(node, props);
+    node.sibling['return'] = node['return'];
+    node = node.sibling;
   }
-};
+  // Flow needs the return null here, but ESLint complains about it.
+  // eslint-disable-next-line no-unreachable
+  return null;
+}
 
-function updateNamedCousins(rootNode, props) {
-  var name = props.name;
-  if (props.type === 'radio' && name != null) {
-    var queryRoot = rootNode;
+function findCurrentHostFiberWithNoPortals(parent) {
+  var currentParent = findCurrentFiberUsingSlowPath(parent);
+  if (!currentParent) {
+    return null;
+  }
 
-    while (queryRoot.parentNode) {
-      queryRoot = queryRoot.parentNode;
+  // Next we'll drill down this component to find the first HostComponent/Text.
+  var node = currentParent;
+  while (true) {
+    if (node.tag === HostComponent || node.tag === HostText) {
+      return node;
+    } else if (node.child && node.tag !== HostPortal) {
+      node.child['return'] = node;
+      node = node.child;
+      continue;
     }
-
-    // If `rootNode.form` was non-null, then we could try `form.elements`,
-    // but that sometimes behaves strangely in IE8. We could also try using
-    // `form.getElementsByName`, but that will only return direct children
-    // and won't include inputs that use the HTML5 `form=` attribute. Since
-    // the input might not even be in a form. It might not even be in the
-    // document. Let's just use the local `querySelectorAll` to ensure we don't
-    // miss anything.
-    var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]');
-
-    for (var i = 0; i < group.length; i++) {
-      var otherNode = group[i];
-      if (otherNode === rootNode || otherNode.form !== rootNode.form) {
-        continue;
+    if (node === currentParent) {
+      return null;
+    }
+    while (!node.sibling) {
+      if (!node['return'] || node['return'] === currentParent) {
+        return null;
       }
-      // This will throw if radio buttons rendered by different copies of React
-      // and the same name are rendered into the same form (same as #1939).
-      // That's probably okay; we don't support it just as we don't support
-      // mixing React radio buttons with non-React ones.
-      var otherProps = ReactDOMComponentTree_1.getFiberCurrentPropsFromNode(otherNode);
-      !otherProps ? invariant(false, 'ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported.') : void 0;
-      // If this is a controlled radio button group, forcing the input that
-      // was previously checked to update will cause it to be come re-checked
-      // as appropriate.
-      ReactDOMInput.updateWrapper(otherNode, otherProps);
+      node = node['return'];
     }
+    node.sibling['return'] = node['return'];
+    node = node.sibling;
   }
+  // Flow needs the return null here, but ESLint complains about it.
+  // eslint-disable-next-line no-unreachable
+  return null;
 }
 
-var ReactDOMFiberInput = ReactDOMInput;
+var CALLBACK_BOOKKEEPING_POOL_SIZE = 10;
+var callbackBookkeepingPool = [];
 
-{
-  var warning$10 = require$$0;
+/**
+ * Find the deepest React component completely containing the root of the
+ * passed-in instance (for use when entire React trees are nested within each
+ * other). If React trees are not nested, returns null.
+ */
+function findRootContainerNode(inst) {
+  // TODO: It may be a good idea to cache this to prevent unnecessary DOM
+  // traversal, but caching is difficult to do correctly without using a
+  // mutation observer to listen for all DOM changes.
+  while (inst['return']) {
+    inst = inst['return'];
+  }
+  if (inst.tag !== HostRoot) {
+    // This can happen if we're in a detached tree.
+    return null;
+  }
+  return inst.stateNode.containerInfo;
 }
 
-function flattenChildren(children) {
-  var content = '';
-
-  // Flatten children and warn if they aren't strings or numbers;
-  // invalid types are ignored.
-  // We can silently skip them because invalid DOM nesting warning
-  // catches these cases in Fiber.
-  react.Children.forEach(children, function (child) {
-    if (child == null) {
-      return;
-    }
-    if (typeof child === 'string' || typeof child === 'number') {
-      content += child;
-    }
-  });
+// Used to store ancestor hierarchy in top level callback
+function getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst) {
+  if (callbackBookkeepingPool.length) {
+    var instance = callbackBookkeepingPool.pop();
+    instance.topLevelType = topLevelType;
+    instance.nativeEvent = nativeEvent;
+    instance.targetInst = targetInst;
+    return instance;
+  }
+  return {
+    topLevelType: topLevelType,
+    nativeEvent: nativeEvent,
+    targetInst: targetInst,
+    ancestors: []
+  };
+}
 
-  return content;
+function releaseTopLevelCallbackBookKeeping(instance) {
+  instance.topLevelType = null;
+  instance.nativeEvent = null;
+  instance.targetInst = null;
+  instance.ancestors.length = 0;
+  if (callbackBookkeepingPool.length < CALLBACK_BOOKKEEPING_POOL_SIZE) {
+    callbackBookkeepingPool.push(instance);
+  }
 }
 
-/**
- * Implements an <option> host component that warns when `selected` is set.
- */
-var ReactDOMOption = {
-  validateProps: function (element, props) {
-    // TODO (yungsters): Remove support for `selected` in <option>.
-    {
-      warning$10(props.selected == null, 'Use the `defaultValue` or `value` props on <select> instead of ' + 'setting `selected` on <option>.');
-    }
-  },
+function handleTopLevelImpl(bookKeeping) {
+  var targetInst = bookKeeping.targetInst;
 
-  postMountWrapper: function (element, props) {
-    // value="" should make a value attribute (#6219)
-    if (props.value != null) {
-      element.setAttribute('value', props.value);
+  // Loop through the hierarchy, in case there's any nested components.
+  // It's important that we build the array of ancestors before calling any
+  // event handlers, because event handlers can modify the DOM, leading to
+  // inconsistencies with ReactMount's node cache. See #1105.
+  var ancestor = targetInst;
+  do {
+    if (!ancestor) {
+      bookKeeping.ancestors.push(ancestor);
+      break;
     }
-  },
-
-  getHostProps: function (element, props) {
-    var hostProps = _assign({ children: undefined }, props);
-
-    var content = flattenChildren(props.children);
-
-    if (content) {
-      hostProps.children = content;
+    var root = findRootContainerNode(ancestor);
+    if (!root) {
+      break;
     }
+    bookKeeping.ancestors.push(ancestor);
+    ancestor = getClosestInstanceFromNode(root);
+  } while (ancestor);
 
-    return hostProps;
+  for (var i = 0; i < bookKeeping.ancestors.length; i++) {
+    targetInst = bookKeeping.ancestors[i];
+    _handleTopLevel(bookKeeping.topLevelType, targetInst, bookKeeping.nativeEvent, getEventTarget(bookKeeping.nativeEvent));
   }
-};
+}
 
-var ReactDOMFiberOption = ReactDOMOption;
+// TODO: can we stop exporting these?
+var _enabled = true;
+var _handleTopLevel = void 0;
 
-var getCurrentFiberOwnerName$4 = ReactDebugCurrentFiber_1.getCurrentFiberOwnerName;
+function setHandleTopLevel(handleTopLevel) {
+  _handleTopLevel = handleTopLevel;
+}
 
-{
-  var didWarnValueDefaultValue$1 = false;
-  var warning$11 = require$$0;
+function setEnabled(enabled) {
+  _enabled = !!enabled;
+}
 
-  var _require2$4 = ReactDebugCurrentFiber_1,
-      getCurrentFiberStackAddendum$3 = _require2$4.getCurrentFiberStackAddendum;
+function isEnabled() {
+  return _enabled;
 }
 
-function getDeclarationErrorAddendum() {
-  var ownerName = getCurrentFiberOwnerName$4();
-  if (ownerName) {
-    return '\n\nCheck the render method of `' + ownerName + '`.';
+/**
+ * Traps top-level events by using event bubbling.
+ *
+ * @param {string} topLevelType Record from `BrowserEventConstants`.
+ * @param {string} handlerBaseName Event name (e.g. "click").
+ * @param {object} element Element on which to attach listener.
+ * @return {?object} An object with a remove function which will forcefully
+ *                  remove the listener.
+ * @internal
+ */
+function trapBubbledEvent(topLevelType, handlerBaseName, element) {
+  if (!element) {
+    return null;
   }
-  return '';
+  return EventListener.listen(element, handlerBaseName, dispatchEvent.bind(null, topLevelType));
 }
 
-var valuePropNames = ['value', 'defaultValue'];
-
 /**
- * Validation function for `value` and `defaultValue`.
+ * Traps a top-level event by using event capturing.
+ *
+ * @param {string} topLevelType Record from `BrowserEventConstants`.
+ * @param {string} handlerBaseName Event name (e.g. "click").
+ * @param {object} element Element on which to attach listener.
+ * @return {?object} An object with a remove function which will forcefully
+ *                  remove the listener.
+ * @internal
  */
-function checkSelectPropTypes(props) {
-  ReactControlledValuePropTypes_1.checkPropTypes('select', props, getCurrentFiberStackAddendum$3);
-
-  for (var i = 0; i < valuePropNames.length; i++) {
-    var propName = valuePropNames[i];
-    if (props[propName] == null) {
-      continue;
-    }
-    var isArray = Array.isArray(props[propName]);
-    if (props.multiple && !isArray) {
-      warning$11(false, 'The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum());
-    } else if (!props.multiple && isArray) {
-      warning$11(false, 'The `%s` prop supplied to <select> must be a scalar ' + 'value if `multiple` is false.%s', propName, getDeclarationErrorAddendum());
-    }
+function trapCapturedEvent(topLevelType, handlerBaseName, element) {
+  if (!element) {
+    return null;
   }
+  return EventListener.capture(element, handlerBaseName, dispatchEvent.bind(null, topLevelType));
 }
 
-function updateOptions(node, multiple, propValue) {
-  var options = node.options;
+function dispatchEvent(topLevelType, nativeEvent) {
+  if (!_enabled) {
+    return;
+  }
 
-  if (multiple) {
-    var selectedValues = propValue;
-    var selectedValue = {};
-    for (var i = 0; i < selectedValues.length; i++) {
-      // Prefix to avoid chaos with special keys.
-      selectedValue['$' + selectedValues[i]] = true;
-    }
-    for (var _i = 0; _i < options.length; _i++) {
-      var selected = selectedValue.hasOwnProperty('$' + options[_i].value);
-      if (options[_i].selected !== selected) {
-        options[_i].selected = selected;
-      }
-    }
-  } else {
-    // Do not set `select.value` as exact behavior isn't consistent across all
-    // browsers for all cases.
-    var _selectedValue = '' + propValue;
-    var defaultSelected = null;
-    for (var _i2 = 0; _i2 < options.length; _i2++) {
-      if (options[_i2].value === _selectedValue) {
-        options[_i2].selected = true;
-        return;
-      }
-      if (defaultSelected === null && !options[_i2].disabled) {
-        defaultSelected = options[_i2];
-      }
-    }
-    if (defaultSelected !== null) {
-      defaultSelected.selected = true;
-    }
+  var nativeEventTarget = getEventTarget(nativeEvent);
+  var targetInst = getClosestInstanceFromNode(nativeEventTarget);
+  if (targetInst !== null && typeof targetInst.tag === 'number' && !isFiberMounted(targetInst)) {
+    // If we get an event (ex: img onload) before committing that
+    // component's mount, ignore it for now (that is, treat it as if it was an
+    // event on a non-React tree). We might also consider queueing events and
+    // dispatching them after the mount.
+    targetInst = null;
+  }
+
+  var bookKeeping = getTopLevelCallbackBookKeeping(topLevelType, nativeEvent, targetInst);
+
+  try {
+    // Event queue being processed in the same cycle allows
+    // `preventDefault`.
+    batchedUpdates(handleTopLevelImpl, bookKeeping);
+  } finally {
+    releaseTopLevelCallbackBookKeeping(bookKeeping);
   }
 }
 
+var ReactDOMEventListener = Object.freeze({
+	get _enabled () { return _enabled; },
+	get _handleTopLevel () { return _handleTopLevel; },
+	setHandleTopLevel: setHandleTopLevel,
+	setEnabled: setEnabled,
+	isEnabled: isEnabled,
+	trapBubbledEvent: trapBubbledEvent,
+	trapCapturedEvent: trapCapturedEvent,
+	dispatchEvent: dispatchEvent
+});
+
 /**
- * Implements a <select> host component that allows optionally setting the
- * props `value` and `defaultValue`. If `multiple` is false, the prop must be a
- * stringable. If `multiple` is true, the prop must be an array of stringables.
- *
- * If `value` is not supplied (or null/undefined), user actions that change the
- * selected option will trigger updates to the rendered options.
- *
- * If it is supplied (and not null/undefined), the rendered options will not
- * update in response to user actions. Instead, the `value` prop must change in
- * order for the rendered options to update.
+ * Generate a mapping of standard vendor prefixes using the defined style property and event name.
  *
- * If `defaultValue` is provided, any options with the supplied values will be
- * selected.
+ * @param {string} styleProp
+ * @param {string} eventName
+ * @returns {object}
  */
-var ReactDOMSelect = {
-  getHostProps: function (element, props) {
-    return _assign({}, props, {
-      value: undefined
-    });
-  },
+function makePrefixMap(styleProp, eventName) {
+  var prefixes = {};
 
-  initWrapperState: function (element, props) {
-    var node = element;
-    {
-      checkSelectPropTypes(props);
-    }
+  prefixes[styleProp.toLowerCase()] = eventName.toLowerCase();
+  prefixes['Webkit' + styleProp] = 'webkit' + eventName;
+  prefixes['Moz' + styleProp] = 'moz' + eventName;
+  prefixes['ms' + styleProp] = 'MS' + eventName;
+  prefixes['O' + styleProp] = 'o' + eventName.toLowerCase();
 
-    var value = props.value;
-    node._wrapperState = {
-      initialValue: value != null ? value : props.defaultValue,
-      wasMultiple: !!props.multiple
-    };
+  return prefixes;
+}
 
-    {
-      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue$1) {
-        warning$11(false, 'Select elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled select ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
-        didWarnValueDefaultValue$1 = true;
-      }
-    }
-  },
+/**
+ * A list of event names to a configurable list of vendor prefixes.
+ */
+var vendorPrefixes = {
+  animationend: makePrefixMap('Animation', 'AnimationEnd'),
+  animationiteration: makePrefixMap('Animation', 'AnimationIteration'),
+  animationstart: makePrefixMap('Animation', 'AnimationStart'),
+  transitionend: makePrefixMap('Transition', 'TransitionEnd')
+};
 
-  postMountWrapper: function (element, props) {
-    var node = element;
-    node.multiple = !!props.multiple;
-    var value = props.value;
-    if (value != null) {
-      updateOptions(node, !!props.multiple, value);
-    } else if (props.defaultValue != null) {
-      updateOptions(node, !!props.multiple, props.defaultValue);
-    }
-  },
+/**
+ * Event names that have already been detected and prefixed (if applicable).
+ */
+var prefixedEventNames = {};
 
-  postUpdateWrapper: function (element, props) {
-    var node = element;
-    // After the initial mount, we control selected-ness manually so don't pass
-    // this value down
-    node._wrapperState.initialValue = undefined;
-
-    var wasMultiple = node._wrapperState.wasMultiple;
-    node._wrapperState.wasMultiple = !!props.multiple;
-
-    var value = props.value;
-    if (value != null) {
-      updateOptions(node, !!props.multiple, value);
-    } else if (wasMultiple !== !!props.multiple) {
-      // For simplicity, reapply `defaultValue` if `multiple` is toggled.
-      if (props.defaultValue != null) {
-        updateOptions(node, !!props.multiple, props.defaultValue);
-      } else {
-        // Revert the select back to its default unselected state.
-        updateOptions(node, !!props.multiple, props.multiple ? [] : '');
-      }
-    }
-  },
+/**
+ * Element to check for prefixes on.
+ */
+var style = {};
 
-  restoreControlledState: function (element, props) {
-    var node = element;
-    var value = props.value;
+/**
+ * Bootstrap if a DOM exists.
+ */
+if (ExecutionEnvironment.canUseDOM) {
+  style = document.createElement('div').style;
 
-    if (value != null) {
-      updateOptions(node, !!props.multiple, value);
-    }
+  // On some platforms, in particular some releases of Android 4.x,
+  // the un-prefixed "animation" and "transition" properties are defined on the
+  // style object but the events that fire will still be prefixed, so we need
+  // to check if the un-prefixed events are usable, and if not remove them from the map.
+  if (!('AnimationEvent' in window)) {
+    delete vendorPrefixes.animationend.animation;
+    delete vendorPrefixes.animationiteration.animation;
+    delete vendorPrefixes.animationstart.animation;
   }
-};
 
-var ReactDOMFiberSelect = ReactDOMSelect;
-
-{
-  var warning$12 = require$$0;
-
-  var _require$4 = ReactDebugCurrentFiber_1,
-      getCurrentFiberStackAddendum$4 = _require$4.getCurrentFiberStackAddendum;
-}
-
-var didWarnValDefaultVal = false;
+  // Same as above
+  if (!('TransitionEvent' in window)) {
+    delete vendorPrefixes.transitionend.transition;
+  }
+}
 
 /**
- * Implements a <textarea> host component that allows setting `value`, and
- * `defaultValue`. This differs from the traditional DOM API because value is
- * usually set as PCDATA children.
- *
- * If `value` is not supplied (or null/undefined), user actions that affect the
- * value will trigger updates to the element.
- *
- * If `value` is supplied (and not null/undefined), the rendered element will
- * not trigger updates to the element. Instead, the `value` prop must change in
- * order for the rendered element to be updated.
+ * Attempts to determine the correct vendor prefixed event name.
  *
- * The rendered element will be initialized with an empty value, the prop
- * `defaultValue` if specified, or the children content (deprecated).
+ * @param {string} eventName
+ * @returns {string}
  */
-var ReactDOMTextarea = {
-  getHostProps: function (element, props) {
-    var node = element;
-    !(props.dangerouslySetInnerHTML == null) ? invariant(false, '`dangerouslySetInnerHTML` does not make sense on <textarea>.') : void 0;
-
-    // Always set children to the same thing. In IE9, the selection range will
-    // get reset if `textContent` is mutated.  We could add a check in setTextContent
-    // to only set the value if/when the value differs from the node value (which would
-    // completely solve this IE9 bug), but Sebastian+Sophie seemed to like this
-    // solution. The value can be a boolean or object so that's why it's forced
-    // to be a string.
-    var hostProps = _assign({}, props, {
-      value: undefined,
-      defaultValue: undefined,
-      children: '' + node._wrapperState.initialValue
-    });
-
-    return hostProps;
-  },
-
-  initWrapperState: function (element, props) {
-    var node = element;
-    {
-      ReactControlledValuePropTypes_1.checkPropTypes('textarea', props, getCurrentFiberStackAddendum$4);
-      if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) {
-        warning$12(false, 'Textarea elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled textarea ' + 'and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
-        didWarnValDefaultVal = true;
-      }
-    }
-
-    var value = props.value;
-    var initialValue = value;
+function getVendorPrefixedEventName(eventName) {
+  if (prefixedEventNames[eventName]) {
+    return prefixedEventNames[eventName];
+  } else if (!vendorPrefixes[eventName]) {
+    return eventName;
+  }
 
-    // Only bother fetching default value if we're going to use it
-    if (value == null) {
-      var defaultValue = props.defaultValue;
-      // TODO (yungsters): Remove support for children content in <textarea>.
-      var children = props.children;
-      if (children != null) {
-        {
-          warning$12(false, 'Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.');
-        }
-        !(defaultValue == null) ? invariant(false, 'If you supply `defaultValue` on a <textarea>, do not pass children.') : void 0;
-        if (Array.isArray(children)) {
-          !(children.length <= 1) ? invariant(false, '<textarea> can only have at most one child.') : void 0;
-          children = children[0];
-        }
+  var prefixMap = vendorPrefixes[eventName];
 
-        defaultValue = '' + children;
-      }
-      if (defaultValue == null) {
-        defaultValue = '';
-      }
-      initialValue = defaultValue;
+  for (var styleProp in prefixMap) {
+    if (prefixMap.hasOwnProperty(styleProp) && styleProp in style) {
+      return prefixedEventNames[eventName] = prefixMap[styleProp];
     }
+  }
 
-    node._wrapperState = {
-      initialValue: '' + initialValue
-    };
-  },
-
-  updateWrapper: function (element, props) {
-    var node = element;
-    var value = props.value;
-    if (value != null) {
-      // Cast `value` to a string to ensure the value is set correctly. While
-      // browsers typically do this as necessary, jsdom doesn't.
-      var newValue = '' + value;
+  return '';
+}
 
-      // To avoid side effects (such as losing text selection), only set value if changed
-      if (newValue !== node.value) {
-        node.value = newValue;
-      }
-      if (props.defaultValue == null) {
-        node.defaultValue = newValue;
-      }
-    }
-    if (props.defaultValue != null) {
-      node.defaultValue = props.defaultValue;
-    }
-  },
+/**
+ * Types of raw signals from the browser caught at the top level.
+ *
+ * For events like 'submit' which don't consistently bubble (which we
+ * trap at a lower node than `document`), binding at `document` would
+ * cause duplicate events so we don't include them here.
+ */
+var topLevelTypes$1 = {
+  topAbort: 'abort',
+  topAnimationEnd: getVendorPrefixedEventName('animationend') || 'animationend',
+  topAnimationIteration: getVendorPrefixedEventName('animationiteration') || 'animationiteration',
+  topAnimationStart: getVendorPrefixedEventName('animationstart') || 'animationstart',
+  topBlur: 'blur',
+  topCancel: 'cancel',
+  topCanPlay: 'canplay',
+  topCanPlayThrough: 'canplaythrough',
+  topChange: 'change',
+  topClick: 'click',
+  topClose: 'close',
+  topCompositionEnd: 'compositionend',
+  topCompositionStart: 'compositionstart',
+  topCompositionUpdate: 'compositionupdate',
+  topContextMenu: 'contextmenu',
+  topCopy: 'copy',
+  topCut: 'cut',
+  topDoubleClick: 'dblclick',
+  topDrag: 'drag',
+  topDragEnd: 'dragend',
+  topDragEnter: 'dragenter',
+  topDragExit: 'dragexit',
+  topDragLeave: 'dragleave',
+  topDragOver: 'dragover',
+  topDragStart: 'dragstart',
+  topDrop: 'drop',
+  topDurationChange: 'durationchange',
+  topEmptied: 'emptied',
+  topEncrypted: 'encrypted',
+  topEnded: 'ended',
+  topError: 'error',
+  topFocus: 'focus',
+  topInput: 'input',
+  topKeyDown: 'keydown',
+  topKeyPress: 'keypress',
+  topKeyUp: 'keyup',
+  topLoadedData: 'loadeddata',
+  topLoad: 'load',
+  topLoadedMetadata: 'loadedmetadata',
+  topLoadStart: 'loadstart',
+  topMouseDown: 'mousedown',
+  topMouseMove: 'mousemove',
+  topMouseOut: 'mouseout',
+  topMouseOver: 'mouseover',
+  topMouseUp: 'mouseup',
+  topPaste: 'paste',
+  topPause: 'pause',
+  topPlay: 'play',
+  topPlaying: 'playing',
+  topProgress: 'progress',
+  topRateChange: 'ratechange',
+  topScroll: 'scroll',
+  topSeeked: 'seeked',
+  topSeeking: 'seeking',
+  topSelectionChange: 'selectionchange',
+  topStalled: 'stalled',
+  topSuspend: 'suspend',
+  topTextInput: 'textInput',
+  topTimeUpdate: 'timeupdate',
+  topToggle: 'toggle',
+  topTouchCancel: 'touchcancel',
+  topTouchEnd: 'touchend',
+  topTouchMove: 'touchmove',
+  topTouchStart: 'touchstart',
+  topTransitionEnd: getVendorPrefixedEventName('transitionend') || 'transitionend',
+  topVolumeChange: 'volumechange',
+  topWaiting: 'waiting',
+  topWheel: 'wheel'
+};
 
-  postMountWrapper: function (element, props) {
-    var node = element;
-    // This is in postMount because we need access to the DOM node, which is not
-    // available until after the component has mounted.
-    var textContent = node.textContent;
+var BrowserEventConstants = {
+  topLevelTypes: topLevelTypes$1
+};
 
-    // Only set node.value if textContent is equal to the expected
-    // initial value. In IE10/IE11 there is a bug where the placeholder attribute
-    // will populate textContent as well.
-    // https://developer.microsoft.com/microsoft-edge/platform/issues/101525/
-    if (textContent === node._wrapperState.initialValue) {
-      node.value = textContent;
-    }
-  },
+function runEventQueueInBatch(events) {
+  enqueueEvents(events);
+  processEventQueue(false);
+}
 
-  restoreControlledState: function (element, props) {
-    // DOM component is still mounted; update
-    ReactDOMTextarea.updateWrapper(element, props);
-  }
-};
+/**
+ * Streams a fired top-level event to `EventPluginHub` where plugins have the
+ * opportunity to create `ReactEvent`s to be dispatched.
+ */
+function handleTopLevel(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+  var events = extractEvents(topLevelType, targetInst, nativeEvent, nativeEventTarget);
+  runEventQueueInBatch(events);
+}
 
-var ReactDOMFiberTextarea = ReactDOMTextarea;
+var topLevelTypes = BrowserEventConstants.topLevelTypes;
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
+ * Summary of `ReactBrowserEventEmitter` event handling:
  *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ *  - Top-level delegation is used to trap most native browser events. This
+ *    may only occur in the main thread and is the responsibility of
+ *    ReactDOMEventListener, which is injected and can therefore support
+ *    pluggable event sources. This is the only work that occurs in the main
+ *    thread.
+ *
+ *  - We normalize and de-duplicate events to account for browser quirks. This
+ *    may be done in the worker thread.
+ *
+ *  - Forward these native events (with the associated top-level type used to
+ *    trap it) to `EventPluginHub`, which in turn will ask plugins if they want
+ *    to extract any synthetic events.
  *
- * @providesModule omittedCloseTags
+ *  - The `EventPluginHub` will then process each event by annotating them with
+ *    "dispatches", a sequence of listeners and IDs that care about that event.
+ *
+ *  - The `EventPluginHub` then dispatches the events.
+ *
+ * Overview of React and the event system:
+ *
+ * +------------+    .
+ * |    DOM     |    .
+ * +------------+    .
+ *       |           .
+ *       v           .
+ * +------------+    .
+ * | ReactEvent |    .
+ * |  Listener  |    .
+ * +------------+    .                         +-----------+
+ *       |           .               +--------+|SimpleEvent|
+ *       |           .               |         |Plugin     |
+ * +-----|------+    .               v         +-----------+
+ * |     |      |    .    +--------------+                    +------------+
+ * |     +-----------.--->|EventPluginHub|                    |    Event   |
+ * |            |    .    |              |     +-----------+  | Propagators|
+ * | ReactEvent |    .    |              |     |TapEvent   |  |------------|
+ * |  Emitter   |    .    |              |<---+|Plugin     |  |other plugin|
+ * |            |    .    |              |     +-----------+  |  utilities |
+ * |     +-----------.--->|              |                    +------------+
+ * |     |      |    .    +--------------+
+ * +-----|------+    .                ^        +-----------+
+ *       |           .                |        |Enter/Leave|
+ *       +           .                +-------+|Plugin     |
+ * +-------------+   .                         +-----------+
+ * | application |   .
+ * |-------------|   .
+ * |             |   .
+ * |             |   .
+ * +-------------+   .
+ *                   .
+ *    React Core     .  General Purpose Event Plugin System
  */
 
-// For HTML, certain tags should omit their close tag. We keep a whitelist for
-// those special-case tags.
+var alreadyListeningTo = {};
+var reactTopListenersCounter = 0;
 
-var omittedCloseTags = {
-  area: true,
-  base: true,
-  br: true,
-  col: true,
-  embed: true,
-  hr: true,
-  img: true,
-  input: true,
-  keygen: true,
-  link: true,
-  meta: true,
-  param: true,
-  source: true,
-  track: true,
-  wbr: true
-};
+/**
+ * To ensure no conflicts with other potential React instances on the page
+ */
+var topListenersIDKey = '_reactListenersID' + ('' + Math.random()).slice(2);
 
-var omittedCloseTags_1 = omittedCloseTags;
+function getListeningForDocument(mountAt) {
+  // In IE8, `mountAt` is a host object and doesn't have `hasOwnProperty`
+  // directly.
+  if (!Object.prototype.hasOwnProperty.call(mountAt, topListenersIDKey)) {
+    mountAt[topListenersIDKey] = reactTopListenersCounter++;
+    alreadyListeningTo[mountAt[topListenersIDKey]] = {};
+  }
+  return alreadyListeningTo[mountAt[topListenersIDKey]];
+}
 
-// For HTML, certain tags cannot have children. This has the same purpose as
-// `omittedCloseTags` except that `menuitem` should still have its closing tag.
+/**
+ * We listen for bubbled touch events on the document object.
+ *
+ * Firefox v8.01 (and possibly others) exhibited strange behavior when
+ * mounting `onmousemove` events at some node that was not the document
+ * element. The symptoms were that if your mouse is not moving over something
+ * contained within that mount point (for example on the background) the
+ * top-level listeners for `onmousemove` won't be called. However, if you
+ * register the `mousemove` on the document object, then it will of course
+ * catch all `mousemove`s. This along with iOS quirks, justifies restricting
+ * top-level listeners to the document object only, at least for these
+ * movement types of events and possibly all events.
+ *
+ * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
+ *
+ * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but
+ * they bubble to document.
+ *
+ * @param {string} registrationName Name of listener (e.g. `onClick`).
+ * @param {object} contentDocumentHandle Document which owns the container
+ */
+function listenTo(registrationName, contentDocumentHandle) {
+  var mountAt = contentDocumentHandle;
+  var isListening = getListeningForDocument(mountAt);
+  var dependencies = registrationNameDependencies[registrationName];
 
-var voidElementTags = _assign({
-  menuitem: true
-}, omittedCloseTags_1);
+  for (var i = 0; i < dependencies.length; i++) {
+    var dependency = dependencies[i];
+    if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {
+      if (dependency === 'topScroll') {
+        trapCapturedEvent('topScroll', 'scroll', mountAt);
+      } else if (dependency === 'topFocus' || dependency === 'topBlur') {
+        trapCapturedEvent('topFocus', 'focus', mountAt);
+        trapCapturedEvent('topBlur', 'blur', mountAt);
 
-var voidElementTags_1 = voidElementTags;
+        // to make sure blur and focus event listeners are only attached once
+        isListening.topBlur = true;
+        isListening.topFocus = true;
+      } else if (dependency === 'topCancel') {
+        if (isEventSupported('cancel', true)) {
+          trapCapturedEvent('topCancel', 'cancel', mountAt);
+        }
+        isListening.topCancel = true;
+      } else if (dependency === 'topClose') {
+        if (isEventSupported('close', true)) {
+          trapCapturedEvent('topClose', 'close', mountAt);
+        }
+        isListening.topClose = true;
+      } else if (topLevelTypes.hasOwnProperty(dependency)) {
+        trapBubbledEvent(dependency, topLevelTypes[dependency], mountAt);
+      }
 
-{
-  var warning$13 = require$$0;
+      isListening[dependency] = true;
+    }
+  }
 }
 
-var HTML$1 = '__html';
-
-function getDeclarationErrorAddendum$1(getCurrentOwnerName) {
-  {
-    var ownerName = getCurrentOwnerName();
-    if (ownerName) {
-      // TODO: also report the stack.
-      return '\n\nThis DOM node was rendered by `' + ownerName + '`.';
+function isListeningToAllDependencies(registrationName, mountAt) {
+  var isListening = getListeningForDocument(mountAt);
+  var dependencies = registrationNameDependencies[registrationName];
+  for (var i = 0; i < dependencies.length; i++) {
+    var dependency = dependencies[i];
+    if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {
+      return false;
     }
   }
-  return '';
+  return true;
 }
 
-function assertValidProps(tag, props, getCurrentOwnerName) {
-  if (!props) {
-    return;
-  }
-  // Note the use of `==` which checks for null or undefined.
-  if (voidElementTags_1[tag]) {
-    !(props.children == null && props.dangerouslySetInnerHTML == null) ? invariant(false, '%s is a void element tag and must neither have `children` nor use `dangerouslySetInnerHTML`.%s', tag, getDeclarationErrorAddendum$1(getCurrentOwnerName)) : void 0;
-  }
-  if (props.dangerouslySetInnerHTML != null) {
-    !(props.children == null) ? invariant(false, 'Can only set one of `children` or `props.dangerouslySetInnerHTML`.') : void 0;
-    !(typeof props.dangerouslySetInnerHTML === 'object' && HTML$1 in props.dangerouslySetInnerHTML) ? invariant(false, '`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. Please visit https://fb.me/react-invariant-dangerously-set-inner-html for more information.') : void 0;
-  }
-  {
-    warning$13(props.suppressContentEditableWarning || !props.contentEditable || props.children == null, 'A component is `contentEditable` and contains `children` managed by ' + 'React. It is now your responsibility to guarantee that none of ' + 'those nodes are unexpectedly modified or duplicated. This is ' + 'probably not intentional.');
+/**
+ * Given any node return the first leaf node without children.
+ *
+ * @param {DOMElement|DOMTextNode} node
+ * @return {DOMElement|DOMTextNode}
+ */
+function getLeafNode(node) {
+  while (node && node.firstChild) {
+    node = node.firstChild;
   }
-  !(props.style == null || typeof props.style === 'object') ? invariant(false, 'The `style` prop expects a mapping from style properties to values, not a string. For example, style={{marginRight: spacing + \'em\'}} when using JSX.%s', getDeclarationErrorAddendum$1(getCurrentOwnerName)) : void 0;
+  return node;
 }
 
-var assertValidProps_1 = assertValidProps;
-
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
+ * Get the next sibling within a container. This will walk up the
+ * DOM if a node's siblings have been exhausted.
  *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * @param {DOMElement|DOMTextNode} node
+ * @return {?DOMElement|DOMTextNode}
+ */
+function getSiblingNode(node) {
+  while (node) {
+    if (node.nextSibling) {
+      return node.nextSibling;
+    }
+    node = node.parentNode;
+  }
+}
+
+/**
+ * Get object describing the nodes which contain characters at offset.
  *
- * @providesModule inputValueTracking
- * 
+ * @param {DOMElement|DOMTextNode} root
+ * @param {number} offset
+ * @return {?object}
  */
+function getNodeForCharacterOffset(root, offset) {
+  var node = getLeafNode(root);
+  var nodeStart = 0;
+  var nodeEnd = 0;
 
-function isCheckable(elem) {
-  var type = elem.type;
-  var nodeName = elem.nodeName;
-  return nodeName && nodeName.toLowerCase() === 'input' && (type === 'checkbox' || type === 'radio');
-}
+  while (node) {
+    if (node.nodeType === TEXT_NODE) {
+      nodeEnd = nodeStart + node.textContent.length;
 
-function getTracker(node) {
-  return node._valueTracker;
-}
+      if (nodeStart <= offset && nodeEnd >= offset) {
+        return {
+          node: node,
+          offset: offset - nodeStart
+        };
+      }
 
-function detachTracker(node) {
-  node._valueTracker = null;
+      nodeStart = nodeEnd;
+    }
+
+    node = getLeafNode(getSiblingNode(node));
+  }
 }
 
-function getValueFromNode(node) {
-  var value = '';
-  if (!node) {
-    return value;
+/**
+ * @param {DOMElement} outerNode
+ * @return {?object}
+ */
+function getOffsets(outerNode) {
+  var selection = window.getSelection && window.getSelection();
+
+  if (!selection || selection.rangeCount === 0) {
+    return null;
   }
 
-  if (isCheckable(node)) {
-    value = node.checked ? 'true' : 'false';
-  } else {
-    value = node.value;
+  var anchorNode = selection.anchorNode,
+      anchorOffset = selection.anchorOffset,
+      focusNode$$1 = selection.focusNode,
+      focusOffset = selection.focusOffset;
+
+  // In Firefox, anchorNode and focusNode can be "anonymous divs", e.g. the
+  // up/down buttons on an <input type="number">. Anonymous divs do not seem to
+  // expose properties, triggering a "Permission denied error" if any of its
+  // properties are accessed. The only seemingly possible way to avoid erroring
+  // is to access a property that typically works for non-anonymous divs and
+  // catch any error that may otherwise arise. See
+  // https://bugzilla.mozilla.org/show_bug.cgi?id=208427
+
+  try {
+    /* eslint-disable no-unused-expressions */
+    anchorNode.nodeType;
+    focusNode$$1.nodeType;
+    /* eslint-enable no-unused-expressions */
+  } catch (e) {
+    return null;
   }
 
-  return value;
+  return getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode$$1, focusOffset);
 }
 
-function trackValueOnNode(node) {
-  var valueField = isCheckable(node) ? 'checked' : 'value';
-  var descriptor = Object.getOwnPropertyDescriptor(node.constructor.prototype, valueField);
+/**
+ * Returns {start, end} where `start` is the character/codepoint index of
+ * (anchorNode, anchorOffset) within the textContent of `outerNode`, and
+ * `end` is the index of (focusNode, focusOffset).
+ *
+ * Returns null if you pass in garbage input but we should probably just crash.
+ *
+ * Exported only for testing.
+ */
+function getModernOffsetsFromPoints(outerNode, anchorNode, anchorOffset, focusNode$$1, focusOffset) {
+  var length = 0;
+  var start = -1;
+  var end = -1;
+  var indexWithinAnchor = 0;
+  var indexWithinFocus = 0;
+  var node = outerNode;
+  var parentNode = null;
 
-  var currentValue = '' + node[valueField];
+  outer: while (true) {
+    var next = null;
 
-  // if someone has already defined a value or Safari, then bail
-  // and don't track value will cause over reporting of changes,
-  // but it's better then a hard failure
-  // (needed for certain tests that spyOn input values and Safari)
-  if (node.hasOwnProperty(valueField) || typeof descriptor.get !== 'function' || typeof descriptor.set !== 'function') {
-    return;
-  }
+    while (true) {
+      if (node === anchorNode && (anchorOffset === 0 || node.nodeType === TEXT_NODE)) {
+        start = length + anchorOffset;
+      }
+      if (node === focusNode$$1 && (focusOffset === 0 || node.nodeType === TEXT_NODE)) {
+        end = length + focusOffset;
+      }
 
-  Object.defineProperty(node, valueField, {
-    enumerable: descriptor.enumerable,
-    configurable: true,
-    get: function () {
-      return descriptor.get.call(this);
-    },
-    set: function (value) {
-      currentValue = '' + value;
-      descriptor.set.call(this, value);
+      if (node.nodeType === TEXT_NODE) {
+        length += node.nodeValue.length;
+      }
+
+      if ((next = node.firstChild) === null) {
+        break;
+      }
+      // Moving from `node` to its first child `next`.
+      parentNode = node;
+      node = next;
     }
-  });
 
-  var tracker = {
-    getValue: function () {
-      return currentValue;
-    },
-    setValue: function (value) {
-      currentValue = '' + value;
-    },
-    stopTracking: function () {
-      detachTracker(node);
-      delete node[valueField];
+    while (true) {
+      if (node === outerNode) {
+        // If `outerNode` has children, this is always the second time visiting
+        // it. If it has no children, this is still the first loop, and the only
+        // valid selection is anchorNode and focusNode both equal to this node
+        // and both offsets 0, in which case we will have handled above.
+        break outer;
+      }
+      if (parentNode === anchorNode && ++indexWithinAnchor === anchorOffset) {
+        start = length;
+      }
+      if (parentNode === focusNode$$1 && ++indexWithinFocus === focusOffset) {
+        end = length;
+      }
+      if ((next = node.nextSibling) !== null) {
+        break;
+      }
+      node = parentNode;
+      parentNode = node.parentNode;
     }
+
+    // Moving from `node` to its next sibling `next`.
+    node = next;
+  }
+
+  if (start === -1 || end === -1) {
+    // This should never happen. (Would happen if the anchor/focus nodes aren't
+    // actually inside the passed-in node.)
+    return null;
+  }
+
+  return {
+    start: start,
+    end: end
   };
-  return tracker;
 }
 
-var inputValueTracking = {
-  // exposed for testing
-  _getTrackerFromNode: getTracker,
+/**
+ * In modern non-IE browsers, we can support both forward and backward
+ * selections.
+ *
+ * Note: IE10+ supports the Selection object, but it does not support
+ * the `extend` method, which means that even in modern IE, it's not possible
+ * to programmatically create a backward selection. Thus, for all IE
+ * versions, we use the old IE API to create our selections.
+ *
+ * @param {DOMElement|DOMTextNode} node
+ * @param {object} offsets
+ */
+function setOffsets(node, offsets) {
+  if (!window.getSelection) {
+    return;
+  }
+
+  var selection = window.getSelection();
+  var length = node[getTextContentAccessor()].length;
+  var start = Math.min(offsets.start, length);
+  var end = offsets.end === undefined ? start : Math.min(offsets.end, length);
 
-  track: function (node) {
-    if (getTracker(node)) {
-      return;
-    }
+  // IE 11 uses modern selection, but doesn't support the extend method.
+  // Flip backward selections, so we can set with a single range.
+  if (!selection.extend && start > end) {
+    var temp = end;
+    end = start;
+    start = temp;
+  }
 
-    // TODO: Once it's just Fiber we can move this to node._wrapperState
-    node._valueTracker = trackValueOnNode(node);
-  },
-  updateValueIfChanged: function (node) {
-    if (!node) {
-      return false;
-    }
+  var startMarker = getNodeForCharacterOffset(node, start);
+  var endMarker = getNodeForCharacterOffset(node, end);
 
-    var tracker = getTracker(node);
-    // if there is no tracker at this point it's unlikely
-    // that trying again will succeed
-    if (!tracker) {
-      return true;
+  if (startMarker && endMarker) {
+    if (selection.rangeCount === 1 && selection.anchorNode === startMarker.node && selection.anchorOffset === startMarker.offset && selection.focusNode === endMarker.node && selection.focusOffset === endMarker.offset) {
+      return;
     }
+    var range = document.createRange();
+    range.setStart(startMarker.node, startMarker.offset);
+    selection.removeAllRanges();
 
-    var lastValue = tracker.getValue();
-    var nextValue = getValueFromNode(node);
-    if (nextValue !== lastValue) {
-      tracker.setValue(nextValue);
-      return true;
-    }
-    return false;
-  },
-  stopTracking: function (node) {
-    var tracker = getTracker(node);
-    if (tracker) {
-      tracker.stopTracking();
+    if (start > end) {
+      selection.addRange(range);
+      selection.extend(endMarker.node, endMarker.offset);
+    } else {
+      range.setEnd(endMarker.node, endMarker.offset);
+      selection.addRange(range);
     }
   }
-};
+}
 
-var inputValueTracking_1 = inputValueTracking;
+function isInDocument(node) {
+  return containsNode(document.documentElement, node);
+}
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule isCustomComponent
- * 
+ * @ReactInputSelection: React input selection module. Based on Selection.js,
+ * but modified to be suitable for react and has a couple of bug fixes (doesn't
+ * assume buttons have range selections allowed).
+ * Input selection module for React.
  */
 
-function isCustomComponent(tagName, props) {
-  if (tagName.indexOf('-') === -1) {
-    return typeof props.is === 'string';
-  }
-  switch (tagName) {
-    // These are reserved SVG and MathML elements.
-    // We don't mind this whitelist too much because we expect it to never grow.
-    // The alternative is to track the namespace in a few places which is convoluted.
-    // https://w3c.github.io/webcomponents/spec/custom/#custom-elements-core-concepts
-    case 'annotation-xml':
-    case 'color-profile':
-    case 'font-face':
-    case 'font-face-src':
-    case 'font-face-uri':
-    case 'font-face-format':
-    case 'font-face-name':
-    case 'missing-glyph':
-      return false;
-    default:
-      return true;
-  }
+function hasSelectionCapabilities(elem) {
+  var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
+  return nodeName && (nodeName === 'input' && elem.type === 'text' || nodeName === 'textarea' || elem.contentEditable === 'true');
 }
 
-var isCustomComponent_1 = isCustomComponent;
+function getSelectionInformation() {
+  var focusedElem = getActiveElement();
+  return {
+    focusedElem: focusedElem,
+    selectionRange: hasSelectionCapabilities(focusedElem) ? getSelection$1(focusedElem) : null
+  };
+}
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule createMicrosoftUnsafeLocalFunction
+ * @restoreSelection: If any selection information was potentially lost,
+ * restore it. This is useful when performing operations that could remove dom
+ * nodes and place them back in, resulting in focus being lost.
  */
+function restoreSelection(priorSelectionInformation) {
+  var curFocusedElem = getActiveElement();
+  var priorFocusedElem = priorSelectionInformation.focusedElem;
+  var priorSelectionRange = priorSelectionInformation.selectionRange;
+  if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) {
+    if (hasSelectionCapabilities(priorFocusedElem)) {
+      setSelection(priorFocusedElem, priorSelectionRange);
+    }
 
-/* globals MSApp */
+    // Focusing a node can change the scroll position, which is undesirable
+    var ancestors = [];
+    var ancestor = priorFocusedElem;
+    while (ancestor = ancestor.parentNode) {
+      if (ancestor.nodeType === ELEMENT_NODE) {
+        ancestors.push({
+          element: ancestor,
+          left: ancestor.scrollLeft,
+          top: ancestor.scrollTop
+        });
+      }
+    }
+
+    focusNode(priorFocusedElem);
+
+    for (var i = 0; i < ancestors.length; i++) {
+      var info = ancestors[i];
+      info.element.scrollLeft = info.left;
+      info.element.scrollTop = info.top;
+    }
+  }
+}
 
 /**
- * Create a function which has 'unsafe' privileges (required by windows8 apps)
+ * @getSelection: Gets the selection bounds of a focused textarea, input or
+ * contentEditable node.
+ * -@input: Look up selection bounds of this input
+ * -@return {start: selectionStart, end: selectionEnd}
  */
+function getSelection$1(input) {
+  var selection = void 0;
 
-var createMicrosoftUnsafeLocalFunction = function (func) {
-  if (typeof MSApp !== 'undefined' && MSApp.execUnsafeLocalFunction) {
-    return function (arg0, arg1, arg2, arg3) {
-      MSApp.execUnsafeLocalFunction(function () {
-        return func(arg0, arg1, arg2, arg3);
-      });
+  if ('selectionStart' in input) {
+    // Modern browser with input or textarea.
+    selection = {
+      start: input.selectionStart,
+      end: input.selectionEnd
     };
   } else {
-    return func;
+    // Content editable or old IE textarea.
+    selection = getOffsets(input);
   }
-};
 
-var createMicrosoftUnsafeLocalFunction_1 = createMicrosoftUnsafeLocalFunction;
-
-var Namespaces$1 = DOMNamespaces.Namespaces;
-
-
-// SVG temp container for IE lacking innerHTML
-var reusableSVGContainer;
+  return selection || { start: 0, end: 0 };
+}
 
 /**
- * Set the innerHTML property of a node
- *
- * @param {DOMElement} node
- * @param {string} html
- * @internal
+ * @setSelection: Sets the selection bounds of a textarea or input and focuses
+ * the input.
+ * -@input     Set selection bounds of this input or textarea
+ * -@offsets   Object of same form that is returned from get*
  */
-var setInnerHTML = createMicrosoftUnsafeLocalFunction_1(function (node, html) {
-  // IE does not have innerHTML for SVG nodes, so instead we inject the
-  // new markup in a temp node and then move the child nodes across into
-  // the target node
-  if (node.namespaceURI === Namespaces$1.svg && !('innerHTML' in node)) {
-    reusableSVGContainer = reusableSVGContainer || document.createElement('div');
-    reusableSVGContainer.innerHTML = '<svg>' + html + '</svg>';
-    var svgNode = reusableSVGContainer.firstChild;
-    while (svgNode.firstChild) {
-      node.appendChild(svgNode.firstChild);
-    }
+function setSelection(input, offsets) {
+  var start = offsets.start,
+      end = offsets.end;
+
+  if (end === undefined) {
+    end = start;
+  }
+
+  if ('selectionStart' in input) {
+    input.selectionStart = start;
+    input.selectionEnd = Math.min(end, input.value.length);
   } else {
-    node.innerHTML = html;
+    setOffsets(input, offsets);
   }
-});
+}
+
+var skipSelectionChangeEvent = ExecutionEnvironment.canUseDOM && 'documentMode' in document && document.documentMode <= 11;
 
-var setInnerHTML_1 = setInnerHTML;
+var eventTypes$3 = {
+  select: {
+    phasedRegistrationNames: {
+      bubbled: 'onSelect',
+      captured: 'onSelectCapture'
+    },
+    dependencies: ['topBlur', 'topContextMenu', 'topFocus', 'topKeyDown', 'topKeyUp', 'topMouseDown', 'topMouseUp', 'topSelectionChange']
+  }
+};
+
+var activeElement$1 = null;
+var activeElementInst$1 = null;
+var lastSelection = null;
+var mouseDown = false;
 
 /**
- * Copyright (c) 2016-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * Based on the escape-html library, which is used under the MIT License below:
- *
- * Copyright (c) 2012-2013 TJ Holowaychuk
- * Copyright (c) 2015 Andreas Lubbe
- * Copyright (c) 2015 Tiancheng "Timothy" Gu
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * 'Software'), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
+ * Get an object which is a unique representation of the current selection.
  *
- * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * The return value will not be consistent across nodes or browsers, but
+ * two identical selections on the same node will return identical objects.
  *
- * @providesModule escapeTextContentForBrowser
+ * @param {DOMElement} node
+ * @return {object}
  */
+function getSelection(node) {
+  if ('selectionStart' in node && hasSelectionCapabilities(node)) {
+    return {
+      start: node.selectionStart,
+      end: node.selectionEnd
+    };
+  } else if (window.getSelection) {
+    var selection = window.getSelection();
+    return {
+      anchorNode: selection.anchorNode,
+      anchorOffset: selection.anchorOffset,
+      focusNode: selection.focusNode,
+      focusOffset: selection.focusOffset
+    };
+  }
+}
 
-// code copied and modified from escape-html
 /**
- * Module variables.
- * @private
+ * Poll selection to see whether it's changed.
+ *
+ * @param {object} nativeEvent
+ * @return {?SyntheticEvent}
  */
+function constructSelectEvent(nativeEvent, nativeEventTarget) {
+  // Ensure we have the right element, and that the user is not dragging a
+  // selection (this matches native `select` event behavior). In HTML5, select
+  // fires only on input and textarea thus if there's no focused element we
+  // won't dispatch.
+  if (mouseDown || activeElement$1 == null || activeElement$1 !== getActiveElement()) {
+    return null;
+  }
+
+  // Only fire when selection has actually changed.
+  var currentSelection = getSelection(activeElement$1);
+  if (!lastSelection || !shallowEqual(lastSelection, currentSelection)) {
+    lastSelection = currentSelection;
+
+    var syntheticEvent = SyntheticEvent$1.getPooled(eventTypes$3.select, activeElementInst$1, nativeEvent, nativeEventTarget);
+
+    syntheticEvent.type = 'select';
+    syntheticEvent.target = activeElement$1;
+
+    accumulateTwoPhaseDispatches(syntheticEvent);
 
-var matchHtmlRegExp = /["'&<>]/;
+    return syntheticEvent;
+  }
+
+  return null;
+}
 
 /**
- * Escape special characters in the given string of html.
+ * This plugin creates an `onSelect` event that normalizes select events
+ * across form elements.
  *
- * @param  {string} string The string to escape for inserting into HTML
- * @return {string}
- * @public
+ * Supported elements are:
+ * - input (see `isTextInputElement`)
+ * - textarea
+ * - contentEditable
+ *
+ * This differs from native browser implementations in the following ways:
+ * - Fires on contentEditable fields as well as inputs.
+ * - Fires for collapsed selection.
+ * - Fires after user input.
  */
+var SelectEventPlugin = {
+  eventTypes: eventTypes$3,
 
-function escapeHtml(string) {
-  var str = '' + string;
-  var match = matchHtmlRegExp.exec(str);
-
-  if (!match) {
-    return str;
-  }
+  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+    var doc = nativeEventTarget.window === nativeEventTarget ? nativeEventTarget.document : nativeEventTarget.nodeType === DOCUMENT_NODE ? nativeEventTarget : nativeEventTarget.ownerDocument;
+    // Track whether all listeners exists for this plugin. If none exist, we do
+    // not extract events. See #3639.
+    if (!doc || !isListeningToAllDependencies('onSelect', doc)) {
+      return null;
+    }
 
-  var escape;
-  var html = '';
-  var index = 0;
-  var lastIndex = 0;
+    var targetNode = targetInst ? getNodeFromInstance$1(targetInst) : window;
 
-  for (index = match.index; index < str.length; index++) {
-    switch (str.charCodeAt(index)) {
-      case 34:
-        // "
-        escape = '&quot;';
-        break;
-      case 38:
-        // &
-        escape = '&amp;';
-        break;
-      case 39:
-        // '
-        escape = '&#x27;'; // modified from escape-html; used to be '&#39'
+    switch (topLevelType) {
+      // Track the input node that has focus.
+      case 'topFocus':
+        if (isTextInputElement(targetNode) || targetNode.contentEditable === 'true') {
+          activeElement$1 = targetNode;
+          activeElementInst$1 = targetInst;
+          lastSelection = null;
+        }
         break;
-      case 60:
-        // <
-        escape = '&lt;';
+      case 'topBlur':
+        activeElement$1 = null;
+        activeElementInst$1 = null;
+        lastSelection = null;
         break;
-      case 62:
-        // >
-        escape = '&gt;';
+      // Don't fire the event while the user is dragging. This matches the
+      // semantics of the native select event.
+      case 'topMouseDown':
+        mouseDown = true;
         break;
-      default:
-        continue;
-    }
-
-    if (lastIndex !== index) {
-      html += str.substring(lastIndex, index);
+      case 'topContextMenu':
+      case 'topMouseUp':
+        mouseDown = false;
+        return constructSelectEvent(nativeEvent, nativeEventTarget);
+      // Chrome and IE fire non-standard event when selection is changed (and
+      // sometimes when it hasn't). IE's event fires out of order with respect
+      // to key and input events on deletion, so we discard it.
+      //
+      // Firefox doesn't support selectionchange, so check selection status
+      // after each key entry. The selection changes after keydown and before
+      // keyup, but we check on keydown as well in the case of holding down a
+      // key, when multiple keydown events are fired but only one keyup is.
+      // This is also our approach for IE handling, for the reason above.
+      case 'topSelectionChange':
+        if (skipSelectionChangeEvent) {
+          break;
+        }
+      // falls through
+      case 'topKeyDown':
+      case 'topKeyUp':
+        return constructSelectEvent(nativeEvent, nativeEventTarget);
     }
 
-    lastIndex = index + 1;
-    html += escape;
+    return null;
   }
+};
 
-  return lastIndex !== index ? html + str.substring(lastIndex, index) : html;
-}
-// end code copied and modified from escape-html
+/**
+ * @interface Event
+ * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent
+ */
+var AnimationEventInterface = {
+  animationName: null,
+  elapsedTime: null,
+  pseudoElement: null
+};
 
 /**
- * Escapes text to prevent scripting attacks.
- *
- * @param {*} text Text value to escape.
- * @return {string} An escaped string.
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticEvent}
  */
-function escapeTextContentForBrowser(text) {
-  if (typeof text === 'boolean' || typeof text === 'number') {
-    // this shortcircuit helps perf for types that we know will never have
-    // special characters, especially given that this function is used often
-    // for numeric dom ids.
-    return '' + text;
-  }
-  return escapeHtml(text);
+function SyntheticAnimationEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
 }
 
-var escapeTextContentForBrowser_1 = escapeTextContentForBrowser;
-
-var TEXT_NODE$2 = HTMLNodeType_1.TEXT_NODE;
+SyntheticEvent$1.augmentClass(SyntheticAnimationEvent, AnimationEventInterface);
 
 /**
- * Set the textContent property of a node, ensuring that whitespace is preserved
- * even in IE8. innerText is a poor substitute for textContent and, among many
- * issues, inserts <br> instead of the literal newline chars. innerHTML behaves
- * as it should.
- *
- * @param {DOMElement} node
- * @param {string} text
- * @internal
+ * @interface Event
+ * @see http://www.w3.org/TR/clipboard-apis/
  */
+var ClipboardEventInterface = {
+  clipboardData: function (event) {
+    return 'clipboardData' in event ? event.clipboardData : window.clipboardData;
+  }
+};
 
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticEvent}
+ */
+function SyntheticClipboardEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
+}
 
-var setTextContent = function (node, text) {
-  if (text) {
-    var firstChild = node.firstChild;
+SyntheticEvent$1.augmentClass(SyntheticClipboardEvent, ClipboardEventInterface);
 
-    if (firstChild && firstChild === node.lastChild && firstChild.nodeType === TEXT_NODE$2) {
-      firstChild.nodeValue = text;
-      return;
-    }
-  }
-  node.textContent = text;
+/**
+ * @interface FocusEvent
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/
+ */
+var FocusEventInterface = {
+  relatedTarget: null
 };
 
-if (ExecutionEnvironment.canUseDOM) {
-  if (!('textContent' in document.documentElement)) {
-    setTextContent = function (node, text) {
-      if (node.nodeType === TEXT_NODE$2) {
-        node.nodeValue = text;
-        return;
-      }
-      setInnerHTML_1(node, escapeTextContentForBrowser_1(text));
-    };
-  }
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticUIEvent}
+ */
+function SyntheticFocusEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
 }
 
-var setTextContent_1 = setTextContent;
+SyntheticUIEvent.augmentClass(SyntheticFocusEvent, FocusEventInterface);
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * `charCode` represents the actual "character code" and is safe to use with
+ * `String.fromCharCode`. As such, only keys that correspond to printable
+ * characters produce a valid `charCode`, the only exception to this is Enter.
+ * The Tab-key is considered non-printable and does not have a `charCode`,
+ * presumably because it does not produce a tab-character in browsers.
  *
- * @providesModule validAriaProperties
+ * @param {object} nativeEvent Native browser event.
+ * @return {number} Normalized `charCode` property.
  */
+function getEventCharCode(nativeEvent) {
+  var charCode;
+  var keyCode = nativeEvent.keyCode;
 
-var ariaProperties = {
-  'aria-current': 0, // state
-  'aria-details': 0,
-  'aria-disabled': 0, // state
-  'aria-hidden': 0, // state
-  'aria-invalid': 0, // state
-  'aria-keyshortcuts': 0,
-  'aria-label': 0,
-  'aria-roledescription': 0,
-  // Widget Attributes
-  'aria-autocomplete': 0,
-  'aria-checked': 0,
-  'aria-expanded': 0,
-  'aria-haspopup': 0,
-  'aria-level': 0,
-  'aria-modal': 0,
-  'aria-multiline': 0,
-  'aria-multiselectable': 0,
-  'aria-orientation': 0,
-  'aria-placeholder': 0,
-  'aria-pressed': 0,
-  'aria-readonly': 0,
-  'aria-required': 0,
-  'aria-selected': 0,
-  'aria-sort': 0,
-  'aria-valuemax': 0,
-  'aria-valuemin': 0,
-  'aria-valuenow': 0,
-  'aria-valuetext': 0,
-  // Live Region Attributes
-  'aria-atomic': 0,
-  'aria-busy': 0,
-  'aria-live': 0,
-  'aria-relevant': 0,
-  // Drag-and-Drop Attributes
-  'aria-dropeffect': 0,
-  'aria-grabbed': 0,
-  // Relationship Attributes
-  'aria-activedescendant': 0,
-  'aria-colcount': 0,
-  'aria-colindex': 0,
-  'aria-colspan': 0,
-  'aria-controls': 0,
-  'aria-describedby': 0,
-  'aria-errormessage': 0,
-  'aria-flowto': 0,
-  'aria-labelledby': 0,
-  'aria-owns': 0,
-  'aria-posinset': 0,
-  'aria-rowcount': 0,
-  'aria-rowindex': 0,
-  'aria-rowspan': 0,
-  'aria-setsize': 0
-};
-
-var validAriaProperties$1 = ariaProperties;
-
-var warnedProperties = {};
-var rARIA = new RegExp('^(aria)-[' + DOMProperty_1.ATTRIBUTE_NAME_CHAR + ']*$');
-var rARIACamel = new RegExp('^(aria)[A-Z][' + DOMProperty_1.ATTRIBUTE_NAME_CHAR + ']*$');
-
-var hasOwnProperty = Object.prototype.hasOwnProperty;
-
-{
-  var warning$14 = require$$0;
-
-  var _require$5 = ReactGlobalSharedState_1,
-      ReactComponentTreeHook$1 = _require$5.ReactComponentTreeHook,
-      ReactDebugCurrentFrame$1 = _require$5.ReactDebugCurrentFrame;
-
-  var getStackAddendumByID = ReactComponentTreeHook$1.getStackAddendumByID;
-
-
-  var validAriaProperties = validAriaProperties$1;
-}
+  if ('charCode' in nativeEvent) {
+    charCode = nativeEvent.charCode;
 
-function getStackAddendum(debugID) {
-  if (debugID != null) {
-    // This can only happen on Stack
-    return getStackAddendumByID(debugID);
+    // FF does not set `charCode` for the Enter-key, check against `keyCode`.
+    if (charCode === 0 && keyCode === 13) {
+      charCode = 13;
+    }
   } else {
-    // This can only happen on Fiber / Server
-    var stack = ReactDebugCurrentFrame$1.getStackAddendum();
-    return stack != null ? stack : '';
-  }
-}
-
-function validateProperty(tagName, name, debugID) {
-  if (hasOwnProperty.call(warnedProperties, name) && warnedProperties[name]) {
-    return true;
+    // IE8 does not implement `charCode`, but `keyCode` has the correct value.
+    charCode = keyCode;
   }
 
-  if (rARIACamel.test(name)) {
-    var ariaName = 'aria-' + name.slice(4).toLowerCase();
-    var correctName = validAriaProperties.hasOwnProperty(ariaName) ? ariaName : null;
-
-    // If this is an aria-* attribute, but is not listed in the known DOM
-    // DOM properties, then it is an invalid aria-* attribute.
-    if (correctName == null) {
-      warning$14(false, 'Invalid ARIA attribute `%s`. ARIA attributes follow the pattern aria-* and must be lowercase.%s', name, getStackAddendum(debugID));
-      warnedProperties[name] = true;
-      return true;
-    }
-    // aria-* attributes should be lowercase; suggest the lowercase version.
-    if (name !== correctName) {
-      warning$14(false, 'Invalid ARIA attribute `%s`. Did you mean `%s`?%s', name, correctName, getStackAddendum(debugID));
-      warnedProperties[name] = true;
-      return true;
-    }
+  // Some non-printable keys are reported in `charCode`/`keyCode`, discard them.
+  // Must not discard the (non-)printable Enter-key.
+  if (charCode >= 32 || charCode === 13) {
+    return charCode;
   }
 
-  if (rARIA.test(name)) {
-    var lowerCasedName = name.toLowerCase();
-    var standardName = validAriaProperties.hasOwnProperty(lowerCasedName) ? lowerCasedName : null;
+  return 0;
+}
 
-    // If this is an aria-* attribute, but is not listed in the known DOM
-    // DOM properties, then it is an invalid aria-* attribute.
-    if (standardName == null) {
-      warnedProperties[name] = true;
-      return false;
-    }
-    // aria-* attributes should be lowercase; suggest the lowercase version.
-    if (name !== standardName) {
-      warning$14(false, 'Unknown ARIA attribute `%s`. Did you mean `%s`?%s', name, standardName, getStackAddendum(debugID));
-      warnedProperties[name] = true;
-      return true;
-    }
-  }
+/**
+ * Normalization of deprecated HTML5 `key` values
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
+ */
+var normalizeKey = {
+  Esc: 'Escape',
+  Spacebar: ' ',
+  Left: 'ArrowLeft',
+  Up: 'ArrowUp',
+  Right: 'ArrowRight',
+  Down: 'ArrowDown',
+  Del: 'Delete',
+  Win: 'OS',
+  Menu: 'ContextMenu',
+  Apps: 'ContextMenu',
+  Scroll: 'ScrollLock',
+  MozPrintableKey: 'Unidentified'
+};
 
-  return true;
-}
+/**
+ * Translation from legacy `keyCode` to HTML5 `key`
+ * Only special keys supported, all others depend on keyboard layout or browser
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
+ */
+var translateToKey = {
+  '8': 'Backspace',
+  '9': 'Tab',
+  '12': 'Clear',
+  '13': 'Enter',
+  '16': 'Shift',
+  '17': 'Control',
+  '18': 'Alt',
+  '19': 'Pause',
+  '20': 'CapsLock',
+  '27': 'Escape',
+  '32': ' ',
+  '33': 'PageUp',
+  '34': 'PageDown',
+  '35': 'End',
+  '36': 'Home',
+  '37': 'ArrowLeft',
+  '38': 'ArrowUp',
+  '39': 'ArrowRight',
+  '40': 'ArrowDown',
+  '45': 'Insert',
+  '46': 'Delete',
+  '112': 'F1',
+  '113': 'F2',
+  '114': 'F3',
+  '115': 'F4',
+  '116': 'F5',
+  '117': 'F6',
+  '118': 'F7',
+  '119': 'F8',
+  '120': 'F9',
+  '121': 'F10',
+  '122': 'F11',
+  '123': 'F12',
+  '144': 'NumLock',
+  '145': 'ScrollLock',
+  '224': 'Meta'
+};
 
-function warnInvalidARIAProps(type, props, debugID) {
-  var invalidProps = [];
+/**
+ * @param {object} nativeEvent Native browser event.
+ * @return {string} Normalized `key` property.
+ */
+function getEventKey(nativeEvent) {
+  if (nativeEvent.key) {
+    // Normalize inconsistent values reported by browsers due to
+    // implementations of a working draft specification.
 
-  for (var key in props) {
-    var isValid = validateProperty(type, key, debugID);
-    if (!isValid) {
-      invalidProps.push(key);
+    // FireFox implements `key` but returns `MozPrintableKey` for all
+    // printable characters (normalized to `Unidentified`), ignore it.
+    var key = normalizeKey[nativeEvent.key] || nativeEvent.key;
+    if (key !== 'Unidentified') {
+      return key;
     }
   }
 
-  var unknownPropString = invalidProps.map(function (prop) {
-    return '`' + prop + '`';
-  }).join(', ');
+  // Browser does not implement `key`, polyfill as much of it as we can.
+  if (nativeEvent.type === 'keypress') {
+    var charCode = getEventCharCode(nativeEvent);
 
-  if (invalidProps.length === 1) {
-    warning$14(false, 'Invalid aria prop %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop%s', unknownPropString, type, getStackAddendum(debugID));
-  } else if (invalidProps.length > 1) {
-    warning$14(false, 'Invalid aria props %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop%s', unknownPropString, type, getStackAddendum(debugID));
+    // The enter-key is technically both printable and non-printable and can
+    // thus be captured by `keypress`, no other non-printable key should.
+    return charCode === 13 ? 'Enter' : String.fromCharCode(charCode);
   }
-}
-
-function validateProperties(type, props, debugID /* Stack only */) {
-  if (isCustomComponent_1(type, props)) {
-    return;
+  if (nativeEvent.type === 'keydown' || nativeEvent.type === 'keyup') {
+    // While user keyboard layout determines the actual meaning of each
+    // `keyCode` value, almost all function keys have a universal value.
+    return translateToKey[nativeEvent.keyCode] || 'Unidentified';
   }
-  warnInvalidARIAProps(type, props, debugID);
+  return '';
 }
 
-var ReactDOMInvalidARIAHook$1 = {
-  // Fiber
-  validateProperties: validateProperties,
-  // Stack
-  onBeforeMountComponent: function (debugID, element) {
-    if (true && element != null && typeof element.type === 'string') {
-      validateProperties(element.type, element.props, debugID);
+/**
+ * @interface KeyboardEvent
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/
+ */
+var KeyboardEventInterface = {
+  key: getEventKey,
+  location: null,
+  ctrlKey: null,
+  shiftKey: null,
+  altKey: null,
+  metaKey: null,
+  repeat: null,
+  locale: null,
+  getModifierState: getEventModifierState,
+  // Legacy Interface
+  charCode: function (event) {
+    // `charCode` is the result of a KeyPress event and represents the value of
+    // the actual printable character.
+
+    // KeyPress is deprecated, but its replacement is not yet final and not
+    // implemented in any major browser. Only KeyPress has charCode.
+    if (event.type === 'keypress') {
+      return getEventCharCode(event);
+    }
+    return 0;
+  },
+  keyCode: function (event) {
+    // `keyCode` is the result of a KeyDown/Up event and represents the value of
+    // physical keyboard key.
+
+    // The actual meaning of the value depends on the users' keyboard layout
+    // which cannot be detected. Assuming that it is a US keyboard layout
+    // provides a surprisingly accurate mapping for US and European users.
+    // Due to this, it is left to the user to implement at this time.
+    if (event.type === 'keydown' || event.type === 'keyup') {
+      return event.keyCode;
     }
+    return 0;
   },
-  onBeforeUpdateComponent: function (debugID, element) {
-    if (true && element != null && typeof element.type === 'string') {
-      validateProperties(element.type, element.props, debugID);
+  which: function (event) {
+    // `which` is an alias for either `keyCode` or `charCode` depending on the
+    // type of the event.
+    if (event.type === 'keypress') {
+      return getEventCharCode(event);
+    }
+    if (event.type === 'keydown' || event.type === 'keyup') {
+      return event.keyCode;
     }
+    return 0;
   }
 };
 
-var ReactDOMInvalidARIAHook_1 = ReactDOMInvalidARIAHook$1;
-
-{
-  var warning$15 = require$$0;
-
-  var _require$6 = ReactGlobalSharedState_1,
-      ReactComponentTreeHook$2 = _require$6.ReactComponentTreeHook,
-      ReactDebugCurrentFrame$2 = _require$6.ReactDebugCurrentFrame;
-
-  var getStackAddendumByID$1 = ReactComponentTreeHook$2.getStackAddendumByID;
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticUIEvent}
+ */
+function SyntheticKeyboardEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
 }
 
-var didWarnValueNull = false;
-
-function getStackAddendum$1(debugID) {
-  if (debugID != null) {
-    // This can only happen on Stack
-    return getStackAddendumByID$1(debugID);
-  } else {
-    // This can only happen on Fiber / Server
-    var stack = ReactDebugCurrentFrame$2.getStackAddendum();
-    return stack != null ? stack : '';
-  }
-}
+SyntheticUIEvent.augmentClass(SyntheticKeyboardEvent, KeyboardEventInterface);
 
-function validateProperties$1(type, props, debugID /* Stack only */) {
-  if (type !== 'input' && type !== 'textarea' && type !== 'select') {
-    return;
-  }
-  if (props != null && props.value === null && !didWarnValueNull) {
-    warning$15(false, '`value` prop on `%s` should not be null. ' + 'Consider using the empty string to clear the component or `undefined` ' + 'for uncontrolled components.%s', type, getStackAddendum$1(debugID));
+/**
+ * @interface DragEvent
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/
+ */
+var DragEventInterface = {
+  dataTransfer: null
+};
 
-    didWarnValueNull = true;
-  }
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticMouseEvent}
+ */
+function SyntheticDragEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticMouseEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
 }
 
-var ReactDOMNullInputValuePropHook$1 = {
-  // Fiber
-  validateProperties: validateProperties$1,
-  // Stack
-  onBeforeMountComponent: function (debugID, element) {
-    if (true && element != null && typeof element.type === 'string') {
-      validateProperties$1(element.type, element.props, debugID);
-    }
-  },
-  onBeforeUpdateComponent: function (debugID, element) {
-    if (true && element != null && typeof element.type === 'string') {
-      validateProperties$1(element.type, element.props, debugID);
-    }
-  }
-};
-
-var ReactDOMNullInputValuePropHook_1 = ReactDOMNullInputValuePropHook$1;
+SyntheticMouseEvent.augmentClass(SyntheticDragEvent, DragEventInterface);
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule possibleStandardNames
+ * @interface TouchEvent
+ * @see http://www.w3.org/TR/touch-events/
  */
+var TouchEventInterface = {
+  touches: null,
+  targetTouches: null,
+  changedTouches: null,
+  altKey: null,
+  metaKey: null,
+  ctrlKey: null,
+  shiftKey: null,
+  getModifierState: getEventModifierState
+};
 
-// When adding attributes to the HTML or SVG whitelist, be sure to
-// also add them to this module to ensure casing and incorrect name
-// warnings.
-var possibleStandardNames$1 = {
-  // HTML
-  accept: 'accept',
-  acceptcharset: 'acceptCharset',
-  'accept-charset': 'acceptCharset',
-  accesskey: 'accessKey',
-  action: 'action',
-  allowfullscreen: 'allowFullScreen',
-  allowtransparency: 'allowTransparency',
-  alt: 'alt',
-  as: 'as',
-  async: 'async',
-  autocapitalize: 'autoCapitalize',
-  autocomplete: 'autoComplete',
-  autocorrect: 'autoCorrect',
-  autofocus: 'autoFocus',
-  autoplay: 'autoPlay',
-  autosave: 'autoSave',
-  capture: 'capture',
-  cellpadding: 'cellPadding',
-  cellspacing: 'cellSpacing',
-  challenge: 'challenge',
-  charset: 'charSet',
-  checked: 'checked',
-  children: 'children',
-  cite: 'cite',
-  'class': 'className',
-  classid: 'classID',
-  classname: 'className',
-  cols: 'cols',
-  colspan: 'colSpan',
-  content: 'content',
-  contenteditable: 'contentEditable',
-  contextmenu: 'contextMenu',
-  controls: 'controls',
-  controlslist: 'controlsList',
-  coords: 'coords',
-  crossorigin: 'crossOrigin',
-  dangerouslysetinnerhtml: 'dangerouslySetInnerHTML',
-  data: 'data',
-  datetime: 'dateTime',
-  'default': 'default',
-  defaultchecked: 'defaultChecked',
-  defaultvalue: 'defaultValue',
-  defer: 'defer',
-  dir: 'dir',
-  disabled: 'disabled',
-  download: 'download',
-  draggable: 'draggable',
-  enctype: 'encType',
-  'for': 'htmlFor',
-  form: 'form',
-  formmethod: 'formMethod',
-  formaction: 'formAction',
-  formenctype: 'formEncType',
-  formnovalidate: 'formNoValidate',
-  formtarget: 'formTarget',
-  frameborder: 'frameBorder',
-  headers: 'headers',
-  height: 'height',
-  hidden: 'hidden',
-  high: 'high',
-  href: 'href',
-  hreflang: 'hrefLang',
-  htmlfor: 'htmlFor',
-  httpequiv: 'httpEquiv',
-  'http-equiv': 'httpEquiv',
-  icon: 'icon',
-  id: 'id',
-  innerhtml: 'innerHTML',
-  inputmode: 'inputMode',
-  integrity: 'integrity',
-  is: 'is',
-  itemid: 'itemID',
-  itemprop: 'itemProp',
-  itemref: 'itemRef',
-  itemscope: 'itemScope',
-  itemtype: 'itemType',
-  keyparams: 'keyParams',
-  keytype: 'keyType',
-  kind: 'kind',
-  label: 'label',
-  lang: 'lang',
-  list: 'list',
-  loop: 'loop',
-  low: 'low',
-  manifest: 'manifest',
-  marginwidth: 'marginWidth',
-  marginheight: 'marginHeight',
-  max: 'max',
-  maxlength: 'maxLength',
-  media: 'media',
-  mediagroup: 'mediaGroup',
-  method: 'method',
-  min: 'min',
-  minlength: 'minLength',
-  multiple: 'multiple',
-  muted: 'muted',
-  name: 'name',
-  nonce: 'nonce',
-  novalidate: 'noValidate',
-  open: 'open',
-  optimum: 'optimum',
-  pattern: 'pattern',
-  placeholder: 'placeholder',
-  playsinline: 'playsInline',
-  poster: 'poster',
-  preload: 'preload',
-  profile: 'profile',
-  radiogroup: 'radioGroup',
-  readonly: 'readOnly',
-  referrerpolicy: 'referrerPolicy',
-  rel: 'rel',
-  required: 'required',
-  reversed: 'reversed',
-  role: 'role',
-  rows: 'rows',
-  rowspan: 'rowSpan',
-  sandbox: 'sandbox',
-  scope: 'scope',
-  scoped: 'scoped',
-  scrolling: 'scrolling',
-  seamless: 'seamless',
-  selected: 'selected',
-  shape: 'shape',
-  size: 'size',
-  sizes: 'sizes',
-  span: 'span',
-  spellcheck: 'spellCheck',
-  src: 'src',
-  srcdoc: 'srcDoc',
-  srclang: 'srcLang',
-  srcset: 'srcSet',
-  start: 'start',
-  step: 'step',
-  style: 'style',
-  summary: 'summary',
-  tabindex: 'tabIndex',
-  target: 'target',
-  title: 'title',
-  type: 'type',
-  usemap: 'useMap',
-  value: 'value',
-  width: 'width',
-  wmode: 'wmode',
-  wrap: 'wrap',
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticUIEvent}
+ */
+function SyntheticTouchEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticUIEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
+}
 
-  // SVG
-  about: 'about',
-  accentheight: 'accentHeight',
-  'accent-height': 'accentHeight',
-  accumulate: 'accumulate',
-  additive: 'additive',
-  alignmentbaseline: 'alignmentBaseline',
-  'alignment-baseline': 'alignmentBaseline',
-  allowreorder: 'allowReorder',
-  alphabetic: 'alphabetic',
-  amplitude: 'amplitude',
-  arabicform: 'arabicForm',
-  'arabic-form': 'arabicForm',
-  ascent: 'ascent',
-  attributename: 'attributeName',
-  attributetype: 'attributeType',
-  autoreverse: 'autoReverse',
-  azimuth: 'azimuth',
-  basefrequency: 'baseFrequency',
-  baselineshift: 'baselineShift',
-  'baseline-shift': 'baselineShift',
-  baseprofile: 'baseProfile',
-  bbox: 'bbox',
-  begin: 'begin',
-  bias: 'bias',
-  by: 'by',
-  calcmode: 'calcMode',
-  capheight: 'capHeight',
-  'cap-height': 'capHeight',
-  clip: 'clip',
-  clippath: 'clipPath',
-  'clip-path': 'clipPath',
-  clippathunits: 'clipPathUnits',
-  cliprule: 'clipRule',
-  'clip-rule': 'clipRule',
-  color: 'color',
-  colorinterpolation: 'colorInterpolation',
-  'color-interpolation': 'colorInterpolation',
-  colorinterpolationfilters: 'colorInterpolationFilters',
-  'color-interpolation-filters': 'colorInterpolationFilters',
-  colorprofile: 'colorProfile',
-  'color-profile': 'colorProfile',
-  colorrendering: 'colorRendering',
-  'color-rendering': 'colorRendering',
-  contentscripttype: 'contentScriptType',
-  contentstyletype: 'contentStyleType',
-  cursor: 'cursor',
-  cx: 'cx',
-  cy: 'cy',
-  d: 'd',
-  datatype: 'datatype',
-  decelerate: 'decelerate',
-  descent: 'descent',
-  diffuseconstant: 'diffuseConstant',
-  direction: 'direction',
-  display: 'display',
-  divisor: 'divisor',
-  dominantbaseline: 'dominantBaseline',
-  'dominant-baseline': 'dominantBaseline',
-  dur: 'dur',
-  dx: 'dx',
-  dy: 'dy',
-  edgemode: 'edgeMode',
-  elevation: 'elevation',
-  enablebackground: 'enableBackground',
-  'enable-background': 'enableBackground',
-  end: 'end',
-  exponent: 'exponent',
-  externalresourcesrequired: 'externalResourcesRequired',
-  fill: 'fill',
-  fillopacity: 'fillOpacity',
-  'fill-opacity': 'fillOpacity',
-  fillrule: 'fillRule',
-  'fill-rule': 'fillRule',
-  filter: 'filter',
-  filterres: 'filterRes',
-  filterunits: 'filterUnits',
-  floodopacity: 'floodOpacity',
-  'flood-opacity': 'floodOpacity',
-  floodcolor: 'floodColor',
-  'flood-color': 'floodColor',
-  focusable: 'focusable',
-  fontfamily: 'fontFamily',
-  'font-family': 'fontFamily',
-  fontsize: 'fontSize',
-  'font-size': 'fontSize',
-  fontsizeadjust: 'fontSizeAdjust',
-  'font-size-adjust': 'fontSizeAdjust',
-  fontstretch: 'fontStretch',
-  'font-stretch': 'fontStretch',
-  fontstyle: 'fontStyle',
-  'font-style': 'fontStyle',
-  fontvariant: 'fontVariant',
-  'font-variant': 'fontVariant',
-  fontweight: 'fontWeight',
-  'font-weight': 'fontWeight',
-  format: 'format',
-  from: 'from',
-  fx: 'fx',
-  fy: 'fy',
-  g1: 'g1',
-  g2: 'g2',
-  glyphname: 'glyphName',
-  'glyph-name': 'glyphName',
-  glyphorientationhorizontal: 'glyphOrientationHorizontal',
-  'glyph-orientation-horizontal': 'glyphOrientationHorizontal',
-  glyphorientationvertical: 'glyphOrientationVertical',
-  'glyph-orientation-vertical': 'glyphOrientationVertical',
-  glyphref: 'glyphRef',
-  gradienttransform: 'gradientTransform',
-  gradientunits: 'gradientUnits',
-  hanging: 'hanging',
-  horizadvx: 'horizAdvX',
-  'horiz-adv-x': 'horizAdvX',
-  horizoriginx: 'horizOriginX',
-  'horiz-origin-x': 'horizOriginX',
-  ideographic: 'ideographic',
-  imagerendering: 'imageRendering',
-  'image-rendering': 'imageRendering',
-  in2: 'in2',
-  'in': 'in',
-  inlist: 'inlist',
-  intercept: 'intercept',
-  k1: 'k1',
-  k2: 'k2',
-  k3: 'k3',
-  k4: 'k4',
-  k: 'k',
-  kernelmatrix: 'kernelMatrix',
-  kernelunitlength: 'kernelUnitLength',
-  kerning: 'kerning',
-  keypoints: 'keyPoints',
-  keysplines: 'keySplines',
-  keytimes: 'keyTimes',
-  lengthadjust: 'lengthAdjust',
-  letterspacing: 'letterSpacing',
-  'letter-spacing': 'letterSpacing',
-  lightingcolor: 'lightingColor',
-  'lighting-color': 'lightingColor',
-  limitingconeangle: 'limitingConeAngle',
-  local: 'local',
-  markerend: 'markerEnd',
-  'marker-end': 'markerEnd',
-  markerheight: 'markerHeight',
-  markermid: 'markerMid',
-  'marker-mid': 'markerMid',
-  markerstart: 'markerStart',
-  'marker-start': 'markerStart',
-  markerunits: 'markerUnits',
-  markerwidth: 'markerWidth',
-  mask: 'mask',
-  maskcontentunits: 'maskContentUnits',
-  maskunits: 'maskUnits',
-  mathematical: 'mathematical',
-  mode: 'mode',
-  numoctaves: 'numOctaves',
-  offset: 'offset',
-  opacity: 'opacity',
-  operator: 'operator',
-  order: 'order',
-  orient: 'orient',
-  orientation: 'orientation',
-  origin: 'origin',
-  overflow: 'overflow',
-  overlineposition: 'overlinePosition',
-  'overline-position': 'overlinePosition',
-  overlinethickness: 'overlineThickness',
-  'overline-thickness': 'overlineThickness',
-  paintorder: 'paintOrder',
-  'paint-order': 'paintOrder',
-  panose1: 'panose1',
-  'panose-1': 'panose1',
-  pathlength: 'pathLength',
-  patterncontentunits: 'patternContentUnits',
-  patterntransform: 'patternTransform',
-  patternunits: 'patternUnits',
-  pointerevents: 'pointerEvents',
-  'pointer-events': 'pointerEvents',
-  points: 'points',
-  pointsatx: 'pointsAtX',
-  pointsaty: 'pointsAtY',
-  pointsatz: 'pointsAtZ',
-  prefix: 'prefix',
-  preservealpha: 'preserveAlpha',
-  preserveaspectratio: 'preserveAspectRatio',
-  primitiveunits: 'primitiveUnits',
-  property: 'property',
-  r: 'r',
-  radius: 'radius',
-  refx: 'refX',
-  refy: 'refY',
-  renderingintent: 'renderingIntent',
-  'rendering-intent': 'renderingIntent',
-  repeatcount: 'repeatCount',
-  repeatdur: 'repeatDur',
-  requiredextensions: 'requiredExtensions',
-  requiredfeatures: 'requiredFeatures',
-  resource: 'resource',
-  restart: 'restart',
-  result: 'result',
-  results: 'results',
-  rotate: 'rotate',
-  rx: 'rx',
-  ry: 'ry',
-  scale: 'scale',
-  security: 'security',
-  seed: 'seed',
-  shaperendering: 'shapeRendering',
-  'shape-rendering': 'shapeRendering',
-  slope: 'slope',
-  spacing: 'spacing',
-  specularconstant: 'specularConstant',
-  specularexponent: 'specularExponent',
-  speed: 'speed',
-  spreadmethod: 'spreadMethod',
-  startoffset: 'startOffset',
-  stddeviation: 'stdDeviation',
-  stemh: 'stemh',
-  stemv: 'stemv',
-  stitchtiles: 'stitchTiles',
-  stopcolor: 'stopColor',
-  'stop-color': 'stopColor',
-  stopopacity: 'stopOpacity',
-  'stop-opacity': 'stopOpacity',
-  strikethroughposition: 'strikethroughPosition',
-  'strikethrough-position': 'strikethroughPosition',
-  strikethroughthickness: 'strikethroughThickness',
-  'strikethrough-thickness': 'strikethroughThickness',
-  string: 'string',
-  stroke: 'stroke',
-  strokedasharray: 'strokeDasharray',
-  'stroke-dasharray': 'strokeDasharray',
-  strokedashoffset: 'strokeDashoffset',
-  'stroke-dashoffset': 'strokeDashoffset',
-  strokelinecap: 'strokeLinecap',
-  'stroke-linecap': 'strokeLinecap',
-  strokelinejoin: 'strokeLinejoin',
-  'stroke-linejoin': 'strokeLinejoin',
-  strokemiterlimit: 'strokeMiterlimit',
-  'stroke-miterlimit': 'strokeMiterlimit',
-  strokewidth: 'strokeWidth',
-  'stroke-width': 'strokeWidth',
-  strokeopacity: 'strokeOpacity',
-  'stroke-opacity': 'strokeOpacity',
-  suppresscontenteditablewarning: 'suppressContentEditableWarning',
-  surfacescale: 'surfaceScale',
-  systemlanguage: 'systemLanguage',
-  tablevalues: 'tableValues',
-  targetx: 'targetX',
-  targety: 'targetY',
-  textanchor: 'textAnchor',
-  'text-anchor': 'textAnchor',
-  textdecoration: 'textDecoration',
-  'text-decoration': 'textDecoration',
-  textlength: 'textLength',
-  textrendering: 'textRendering',
-  'text-rendering': 'textRendering',
-  to: 'to',
-  transform: 'transform',
-  'typeof': 'typeof',
-  u1: 'u1',
-  u2: 'u2',
-  underlineposition: 'underlinePosition',
-  'underline-position': 'underlinePosition',
-  underlinethickness: 'underlineThickness',
-  'underline-thickness': 'underlineThickness',
-  unicode: 'unicode',
-  unicodebidi: 'unicodeBidi',
-  'unicode-bidi': 'unicodeBidi',
-  unicoderange: 'unicodeRange',
-  'unicode-range': 'unicodeRange',
-  unitsperem: 'unitsPerEm',
-  'units-per-em': 'unitsPerEm',
-  unselectable: 'unselectable',
-  valphabetic: 'vAlphabetic',
-  'v-alphabetic': 'vAlphabetic',
-  values: 'values',
-  vectoreffect: 'vectorEffect',
-  'vector-effect': 'vectorEffect',
-  version: 'version',
-  vertadvy: 'vertAdvY',
-  'vert-adv-y': 'vertAdvY',
-  vertoriginx: 'vertOriginX',
-  'vert-origin-x': 'vertOriginX',
-  vertoriginy: 'vertOriginY',
-  'vert-origin-y': 'vertOriginY',
-  vhanging: 'vHanging',
-  'v-hanging': 'vHanging',
-  videographic: 'vIdeographic',
-  'v-ideographic': 'vIdeographic',
-  viewbox: 'viewBox',
-  viewtarget: 'viewTarget',
-  visibility: 'visibility',
-  vmathematical: 'vMathematical',
-  'v-mathematical': 'vMathematical',
-  vocab: 'vocab',
-  widths: 'widths',
-  wordspacing: 'wordSpacing',
-  'word-spacing': 'wordSpacing',
-  writingmode: 'writingMode',
-  'writing-mode': 'writingMode',
-  x1: 'x1',
-  x2: 'x2',
-  x: 'x',
-  xchannelselector: 'xChannelSelector',
-  xheight: 'xHeight',
-  'x-height': 'xHeight',
-  xlinkactuate: 'xlinkActuate',
-  'xlink:actuate': 'xlinkActuate',
-  xlinkarcrole: 'xlinkArcrole',
-  'xlink:arcrole': 'xlinkArcrole',
-  xlinkhref: 'xlinkHref',
-  'xlink:href': 'xlinkHref',
-  xlinkrole: 'xlinkRole',
-  'xlink:role': 'xlinkRole',
-  xlinkshow: 'xlinkShow',
-  'xlink:show': 'xlinkShow',
-  xlinktitle: 'xlinkTitle',
-  'xlink:title': 'xlinkTitle',
-  xlinktype: 'xlinkType',
-  'xlink:type': 'xlinkType',
-  xmlbase: 'xmlBase',
-  'xml:base': 'xmlBase',
-  xmllang: 'xmlLang',
-  'xml:lang': 'xmlLang',
-  xmlns: 'xmlns',
-  'xml:space': 'xmlSpace',
-  xmlnsxlink: 'xmlnsXlink',
-  'xmlns:xlink': 'xmlnsXlink',
-  xmlspace: 'xmlSpace',
-  y1: 'y1',
-  y2: 'y2',
-  y: 'y',
-  ychannelselector: 'yChannelSelector',
-  z: 'z',
-  zoomandpan: 'zoomAndPan'
-};
-
-var possibleStandardNames_1 = possibleStandardNames$1;
-
-{
-  var warning$16 = require$$0;
+SyntheticUIEvent.augmentClass(SyntheticTouchEvent, TouchEventInterface);
 
-  var _require$7 = ReactGlobalSharedState_1,
-      ReactComponentTreeHook$3 = _require$7.ReactComponentTreeHook,
-      ReactDebugCurrentFrame$3 = _require$7.ReactDebugCurrentFrame;
-
-  var getStackAddendumByID$2 = ReactComponentTreeHook$3.getStackAddendumByID;
-}
-
-function getStackAddendum$2(debugID) {
-  if (debugID != null) {
-    // This can only happen on Stack
-    return getStackAddendumByID$2(debugID);
-  } else {
-    // This can only happen on Fiber / Server
-    var stack = ReactDebugCurrentFrame$3.getStackAddendum();
-    return stack != null ? stack : '';
-  }
+/**
+ * @interface Event
+ * @see http://www.w3.org/TR/2009/WD-css3-transitions-20090320/#transition-events-
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/TransitionEvent
+ */
+var TransitionEventInterface = {
+  propertyName: null,
+  elapsedTime: null,
+  pseudoElement: null
+};
+
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticEvent}
+ */
+function SyntheticTransitionEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticEvent$1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
 }
 
-{
-  var warnedProperties$1 = {};
-  var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
-  var EVENT_NAME_REGEX = /^on[A-Z]/;
-  var rARIA$1 = new RegExp('^(aria)-[' + DOMProperty_1.ATTRIBUTE_NAME_CHAR + ']*$');
-  var rARIACamel$1 = new RegExp('^(aria)[A-Z][' + DOMProperty_1.ATTRIBUTE_NAME_CHAR + ']*$');
-  var possibleStandardNames = possibleStandardNames_1;
+SyntheticEvent$1.augmentClass(SyntheticTransitionEvent, TransitionEventInterface);
 
-  var validateProperty$1 = function (tagName, name, value, debugID) {
-    if (hasOwnProperty$1.call(warnedProperties$1, name) && warnedProperties$1[name]) {
-      return true;
-    }
+/**
+ * @interface WheelEvent
+ * @see http://www.w3.org/TR/DOM-Level-3-Events/
+ */
+var WheelEventInterface = {
+  deltaX: function (event) {
+    return 'deltaX' in event ? event.deltaX : // Fallback to `wheelDeltaX` for Webkit and normalize (right is positive).
+    'wheelDeltaX' in event ? -event.wheelDeltaX : 0;
+  },
+  deltaY: function (event) {
+    return 'deltaY' in event ? event.deltaY : // Fallback to `wheelDeltaY` for Webkit and normalize (down is positive).
+    'wheelDeltaY' in event ? -event.wheelDeltaY : // Fallback to `wheelDelta` for IE<9 and normalize (down is positive).
+    'wheelDelta' in event ? -event.wheelDelta : 0;
+  },
+  deltaZ: null,
 
-    if (EventPluginRegistry_1.registrationNameModules.hasOwnProperty(name)) {
-      return true;
-    }
+  // Browsers without "deltaMode" is reporting in raw wheel delta where one
+  // notch on the scroll is always +/- 120, roughly equivalent to pixels.
+  // A good approximation of DOM_DELTA_LINE (1) is 5% of viewport size or
+  // ~40 pixels, for DOM_DELTA_SCREEN (2) it is 87.5% of viewport size.
+  deltaMode: null
+};
 
-    if (EventPluginRegistry_1.plugins.length === 0 && EVENT_NAME_REGEX.test(name)) {
-      // If no event plugins have been injected, we might be in a server environment.
-      // Don't check events in this case.
-      return true;
-    }
+/**
+ * @param {object} dispatchConfig Configuration used to dispatch this event.
+ * @param {string} dispatchMarker Marker identifying the event target.
+ * @param {object} nativeEvent Native browser event.
+ * @extends {SyntheticMouseEvent}
+ */
+function SyntheticWheelEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
+  return SyntheticMouseEvent.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
+}
 
-    var lowerCasedName = name.toLowerCase();
-    var registrationName = EventPluginRegistry_1.possibleRegistrationNames.hasOwnProperty(lowerCasedName) ? EventPluginRegistry_1.possibleRegistrationNames[lowerCasedName] : null;
+SyntheticMouseEvent.augmentClass(SyntheticWheelEvent, WheelEventInterface);
 
-    if (registrationName != null) {
-      warning$16(false, 'Invalid event handler property `%s`. Did you mean `%s`?%s', name, registrationName, getStackAddendum$2(debugID));
-      warnedProperties$1[name] = true;
-      return true;
-    }
+/**
+ * Turns
+ * ['abort', ...]
+ * into
+ * eventTypes = {
+ *   'abort': {
+ *     phasedRegistrationNames: {
+ *       bubbled: 'onAbort',
+ *       captured: 'onAbortCapture',
+ *     },
+ *     dependencies: ['topAbort'],
+ *   },
+ *   ...
+ * };
+ * topLevelEventsToDispatchConfig = {
+ *   'topAbort': { sameConfig }
+ * };
+ */
+var eventTypes$4 = {};
+var topLevelEventsToDispatchConfig = {};
+['abort', 'animationEnd', 'animationIteration', 'animationStart', 'blur', 'cancel', 'canPlay', 'canPlayThrough', 'click', 'close', 'contextMenu', 'copy', 'cut', 'doubleClick', 'drag', 'dragEnd', 'dragEnter', 'dragExit', 'dragLeave', 'dragOver', 'dragStart', 'drop', 'durationChange', 'emptied', 'encrypted', 'ended', 'error', 'focus', 'input', 'invalid', 'keyDown', 'keyPress', 'keyUp', 'load', 'loadedData', 'loadedMetadata', 'loadStart', 'mouseDown', 'mouseMove', 'mouseOut', 'mouseOver', 'mouseUp', 'paste', 'pause', 'play', 'playing', 'progress', 'rateChange', 'reset', 'scroll', 'seeked', 'seeking', 'stalled', 'submit', 'suspend', 'timeUpdate', 'toggle', 'touchCancel', 'touchEnd', 'touchMove', 'touchStart', 'transitionEnd', 'volumeChange', 'waiting', 'wheel'].forEach(function (event) {
+  var capitalizedEvent = event[0].toUpperCase() + event.slice(1);
+  var onEvent = 'on' + capitalizedEvent;
+  var topEvent = 'top' + capitalizedEvent;
 
-    if (lowerCasedName.indexOf('on') === 0) {
-      warning$16(false, 'Unknown event handler property `%s`. It will be ignored.%s', name, getStackAddendum$2(debugID));
-      warnedProperties$1[name] = true;
-      return true;
-    }
+  var type = {
+    phasedRegistrationNames: {
+      bubbled: onEvent,
+      captured: onEvent + 'Capture'
+    },
+    dependencies: [topEvent]
+  };
+  eventTypes$4[event] = type;
+  topLevelEventsToDispatchConfig[topEvent] = type;
+});
 
-    // Let the ARIA attribute hook validate ARIA attributes
-    if (rARIA$1.test(name) || rARIACamel$1.test(name)) {
-      return true;
-    }
+// Only used in DEV for exhaustiveness validation.
+var knownHTMLTopLevelTypes = ['topAbort', 'topCancel', 'topCanPlay', 'topCanPlayThrough', 'topClose', 'topDurationChange', 'topEmptied', 'topEncrypted', 'topEnded', 'topError', 'topInput', 'topInvalid', 'topLoad', 'topLoadedData', 'topLoadedMetadata', 'topLoadStart', 'topPause', 'topPlay', 'topPlaying', 'topProgress', 'topRateChange', 'topReset', 'topSeeked', 'topSeeking', 'topStalled', 'topSubmit', 'topSuspend', 'topTimeUpdate', 'topToggle', 'topVolumeChange', 'topWaiting'];
 
-    if (lowerCasedName === 'onfocusin' || lowerCasedName === 'onfocusout') {
-      warning$16(false, 'React uses onFocus and onBlur instead of onFocusIn and onFocusOut. ' + 'All React events are normalized to bubble, so onFocusIn and onFocusOut ' + 'are not needed/supported by React.');
-      warnedProperties$1[name] = true;
-      return true;
-    }
+var SimpleEventPlugin = {
+  eventTypes: eventTypes$4,
 
-    if (lowerCasedName === 'innerhtml') {
-      warning$16(false, 'Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.');
-      warnedProperties$1[name] = true;
-      return true;
+  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
+    var dispatchConfig = topLevelEventsToDispatchConfig[topLevelType];
+    if (!dispatchConfig) {
+      return null;
     }
-
-    if (lowerCasedName === 'aria') {
-      warning$16(false, 'The `aria` attribute is reserved for future use in React. ' + 'Pass individual `aria-` attributes instead.');
-      warnedProperties$1[name] = true;
-      return true;
+    var EventConstructor;
+    switch (topLevelType) {
+      case 'topKeyPress':
+        // Firefox creates a keypress event for function keys too. This removes
+        // the unwanted keypress events. Enter is however both printable and
+        // non-printable. One would expect Tab to be as well (but it isn't).
+        if (getEventCharCode(nativeEvent) === 0) {
+          return null;
+        }
+      /* falls through */
+      case 'topKeyDown':
+      case 'topKeyUp':
+        EventConstructor = SyntheticKeyboardEvent;
+        break;
+      case 'topBlur':
+      case 'topFocus':
+        EventConstructor = SyntheticFocusEvent;
+        break;
+      case 'topClick':
+        // Firefox creates a click event on right mouse clicks. This removes the
+        // unwanted click events.
+        if (nativeEvent.button === 2) {
+          return null;
+        }
+      /* falls through */
+      case 'topDoubleClick':
+      case 'topMouseDown':
+      case 'topMouseMove':
+      case 'topMouseUp':
+      // TODO: Disabled elements should not respond to mouse events
+      /* falls through */
+      case 'topMouseOut':
+      case 'topMouseOver':
+      case 'topContextMenu':
+        EventConstructor = SyntheticMouseEvent;
+        break;
+      case 'topDrag':
+      case 'topDragEnd':
+      case 'topDragEnter':
+      case 'topDragExit':
+      case 'topDragLeave':
+      case 'topDragOver':
+      case 'topDragStart':
+      case 'topDrop':
+        EventConstructor = SyntheticDragEvent;
+        break;
+      case 'topTouchCancel':
+      case 'topTouchEnd':
+      case 'topTouchMove':
+      case 'topTouchStart':
+        EventConstructor = SyntheticTouchEvent;
+        break;
+      case 'topAnimationEnd':
+      case 'topAnimationIteration':
+      case 'topAnimationStart':
+        EventConstructor = SyntheticAnimationEvent;
+        break;
+      case 'topTransitionEnd':
+        EventConstructor = SyntheticTransitionEvent;
+        break;
+      case 'topScroll':
+        EventConstructor = SyntheticUIEvent;
+        break;
+      case 'topWheel':
+        EventConstructor = SyntheticWheelEvent;
+        break;
+      case 'topCopy':
+      case 'topCut':
+      case 'topPaste':
+        EventConstructor = SyntheticClipboardEvent;
+        break;
+      default:
+        {
+          if (knownHTMLTopLevelTypes.indexOf(topLevelType) === -1) {
+            warning(false, 'SimpleEventPlugin: Unhandled event type, `%s`. This warning ' + 'is likely caused by a bug in React. Please file an issue.', topLevelType);
+          }
+        }
+        // HTML Events
+        // @see http://www.w3.org/TR/html5/index.html#events-0
+        EventConstructor = SyntheticEvent$1;
+        break;
     }
+    var event = EventConstructor.getPooled(dispatchConfig, targetInst, nativeEvent, nativeEventTarget);
+    accumulateTwoPhaseDispatches(event);
+    return event;
+  }
+};
 
-    if (lowerCasedName === 'is' && value !== null && value !== undefined && typeof value !== 'string') {
-      warning$16(false, 'Received a `%s` for string attribute `is`. If this is expected, cast ' + 'the value to a string.%s', typeof value, getStackAddendum$2(debugID));
-      warnedProperties$1[name] = true;
-      return true;
-    }
+setHandleTopLevel(handleTopLevel);
 
-    if (typeof value === 'number' && isNaN(value)) {
-      warning$16(false, 'Received NaN for numeric attribute `%s`. If this is expected, cast ' + 'the value to a string.%s', name, getStackAddendum$2(debugID));
-      warnedProperties$1[name] = true;
-      return true;
-    }
+/**
+ * Inject modules for resolving DOM hierarchy and plugin ordering.
+ */
+injection$1.injectEventPluginOrder(DOMEventPluginOrder);
+injection$2.injectComponentTree(ReactDOMComponentTree);
 
-    var isReserved = DOMProperty_1.isReservedProp(name);
+/**
+ * Some important event plugins included by default (without having to require
+ * them).
+ */
+injection$1.injectEventPluginsByName({
+  SimpleEventPlugin: SimpleEventPlugin,
+  EnterLeaveEventPlugin: EnterLeaveEventPlugin,
+  ChangeEventPlugin: ChangeEventPlugin,
+  SelectEventPlugin: SelectEventPlugin,
+  BeforeInputEventPlugin: BeforeInputEventPlugin
+});
 
-    // Known attributes should match the casing specified in the property config.
-    if (possibleStandardNames.hasOwnProperty(lowerCasedName)) {
-      var standardName = possibleStandardNames[lowerCasedName];
-      if (standardName !== name) {
-        warning$16(false, 'Invalid DOM property `%s`. Did you mean `%s`?%s', name, standardName, getStackAddendum$2(debugID));
-        warnedProperties$1[name] = true;
-        return true;
-      }
-    } else if (!isReserved && name !== lowerCasedName) {
-      // Unknown attributes should have lowercase casing since that's how they
-      // will be cased anyway with server rendering.
-      warning$16(false, 'React does not recognize the `%s` prop on a DOM element. If you ' + 'intentionally want it to appear in the DOM as a custom ' + 'attribute, spell it as lowercase `%s` instead. ' + 'If you accidentally passed it from a parent component, remove ' + 'it from the DOM element.%s', name, lowerCasedName, getStackAddendum$2(debugID));
-      warnedProperties$1[name] = true;
-      return true;
-    }
+var enableAsyncSubtreeAPI = true;
+var enableAsyncSchedulingByDefaultInReactDOM = false;
+// Exports ReactDOM.createRoot
+var enableCreateRoot = false;
+var enableUserTimingAPI = true;
 
-    if (typeof value === 'boolean') {
-      warning$16(DOMProperty_1.shouldAttributeAcceptBooleanValue(name), 'Received `%s` for non-boolean attribute `%s`. If this is expected, cast ' + 'the value to a string.%s', value, name, getStackAddendum$2(debugID));
-      warnedProperties$1[name] = true;
-      return true;
-    }
+// Mutating mode (React DOM, React ART, React Native):
+var enableMutatingReconciler = true;
+// Experimental noop mode (currently unused):
+var enableNoopReconciler = false;
+// Experimental persistent mode (CS):
+var enablePersistentReconciler = false;
 
-    // Now that we've validated casing, do not validate
-    // data types for reserved props
-    if (isReserved) {
-      return true;
-    }
+// Helps identify side effects in begin-phase lifecycle hooks and setState reducers:
+var debugRenderPhaseSideEffects = false;
 
-    // Warn when a known attribute is a bad type
-    if (!DOMProperty_1.shouldSetAttribute(name, value)) {
-      warnedProperties$1[name] = true;
-      return false;
-    }
+// Only used in www builds.
 
-    return true;
+var valueStack = [];
+
+{
+  var fiberStack = [];
+}
+
+var index = -1;
+
+function createCursor(defaultValue) {
+  return {
+    current: defaultValue
   };
 }
 
-var warnUnknownProperties = function (type, props, debugID) {
-  var unknownProps = [];
-  for (var key in props) {
-    var isValid = validateProperty$1(type, key, props[key], debugID);
-    if (!isValid) {
-      unknownProps.push(key);
+
+
+function pop(cursor, fiber) {
+  if (index < 0) {
+    {
+      warning(false, 'Unexpected pop.');
     }
+    return;
   }
 
-  var unknownPropString = unknownProps.map(function (prop) {
-    return '`' + prop + '`';
-  }).join(', ');
-  if (unknownProps.length === 1) {
-    warning$16(false, 'Invalid value for prop %s on <%s> tag. Either remove it from the element, ' + 'or pass a string or number value to keep it in the DOM. ' + 'For details, see https://fb.me/react-attribute-behavior%s', unknownPropString, type, getStackAddendum$2(debugID));
-  } else if (unknownProps.length > 1) {
-    warning$16(false, 'Invalid values for props %s on <%s> tag. Either remove them from the element, ' + 'or pass a string or number value to keep them in the DOM. ' + 'For details, see https://fb.me/react-attribute-behavior%s', unknownPropString, type, getStackAddendum$2(debugID));
+  {
+    if (fiber !== fiberStack[index]) {
+      warning(false, 'Unexpected Fiber popped.');
+    }
+  }
+
+  cursor.current = valueStack[index];
+
+  valueStack[index] = null;
+
+  {
+    fiberStack[index] = null;
+  }
+
+  index--;
+}
+
+function push(cursor, value, fiber) {
+  index++;
+
+  valueStack[index] = cursor.current;
+
+  {
+    fiberStack[index] = fiber;
+  }
+
+  cursor.current = value;
+}
+
+function reset$1() {
+  while (index > -1) {
+    valueStack[index] = null;
+
+    {
+      fiberStack[index] = null;
+    }
+
+    index--;
   }
+}
+
+var describeComponentFrame = function (name, source, ownerName) {
+  return '\n    in ' + (name || 'Unknown') + (source ? ' (at ' + source.fileName.replace(/^.*[\\\/]/, '') + ':' + source.lineNumber + ')' : ownerName ? ' (created by ' + ownerName + ')' : '');
 };
 
-function validateProperties$2(type, props, debugID /* Stack only */) {
-  if (isCustomComponent_1(type, props)) {
-    return;
+function describeFiber(fiber) {
+  switch (fiber.tag) {
+    case IndeterminateComponent:
+    case FunctionalComponent:
+    case ClassComponent:
+    case HostComponent:
+      var owner = fiber._debugOwner;
+      var source = fiber._debugSource;
+      var name = getComponentName(fiber);
+      var ownerName = null;
+      if (owner) {
+        ownerName = getComponentName(owner);
+      }
+      return describeComponentFrame(name, source, ownerName);
+    default:
+      return '';
   }
-  warnUnknownProperties(type, props, debugID);
 }
 
-var ReactDOMUnknownPropertyHook$1 = {
-  // Fiber
-  validateProperties: validateProperties$2,
-  // Stack
-  onBeforeMountComponent: function (debugID, element) {
-    if (true && element != null && typeof element.type === 'string') {
-      validateProperties$2(element.type, element.props, debugID);
+// This function can only be called with a work-in-progress fiber and
+// only during begin or complete phase. Do not call it under any other
+// circumstances.
+function getStackAddendumByWorkInProgressFiber(workInProgress) {
+  var info = '';
+  var node = workInProgress;
+  do {
+    info += describeFiber(node);
+    // Otherwise this return pointer might point to the wrong tree:
+    node = node['return'];
+  } while (node);
+  return info;
+}
+
+function getCurrentFiberOwnerName() {
+  {
+    var fiber = ReactDebugCurrentFiber.current;
+    if (fiber === null) {
+      return null;
     }
-  },
-  onBeforeUpdateComponent: function (debugID, element) {
-    if (true && element != null && typeof element.type === 'string') {
-      validateProperties$2(element.type, element.props, debugID);
+    var owner = fiber._debugOwner;
+    if (owner !== null && typeof owner !== 'undefined') {
+      return getComponentName(owner);
+    }
+  }
+  return null;
+}
+
+function getCurrentFiberStackAddendum() {
+  {
+    var fiber = ReactDebugCurrentFiber.current;
+    if (fiber === null) {
+      return null;
     }
+    // Safe because if current fiber exists, we are reconciling,
+    // and it is guaranteed to be the work-in-progress version.
+    return getStackAddendumByWorkInProgressFiber(fiber);
   }
+  return null;
+}
+
+function resetCurrentFiber() {
+  ReactDebugCurrentFrame.getCurrentStack = null;
+  ReactDebugCurrentFiber.current = null;
+  ReactDebugCurrentFiber.phase = null;
+}
+
+function setCurrentFiber(fiber) {
+  ReactDebugCurrentFrame.getCurrentStack = getCurrentFiberStackAddendum;
+  ReactDebugCurrentFiber.current = fiber;
+  ReactDebugCurrentFiber.phase = null;
+}
+
+function setCurrentPhase(phase) {
+  ReactDebugCurrentFiber.phase = phase;
+}
+
+var ReactDebugCurrentFiber = {
+  current: null,
+  phase: null,
+  resetCurrentFiber: resetCurrentFiber,
+  setCurrentFiber: setCurrentFiber,
+  setCurrentPhase: setCurrentPhase,
+  getCurrentFiberOwnerName: getCurrentFiberOwnerName,
+  getCurrentFiberStackAddendum: getCurrentFiberStackAddendum
+};
+
+// Prefix measurements so that it's possible to filter them.
+// Longer prefixes are hard to read in DevTools.
+var reactEmoji = '\u269B';
+var warningEmoji = '\u26D4';
+var supportsUserTiming = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function';
+
+// Keep track of current fiber so that we know the path to unwind on pause.
+// TODO: this looks the same as nextUnitOfWork in scheduler. Can we unify them?
+var currentFiber = null;
+// If we're in the middle of user code, which fiber and method is it?
+// Reusing `currentFiber` would be confusing for this because user code fiber
+// can change during commit phase too, but we don't need to unwind it (since
+// lifecycles in the commit phase don't resemble a tree).
+var currentPhase = null;
+var currentPhaseFiber = null;
+// Did lifecycle hook schedule an update? This is often a performance problem,
+// so we will keep track of it, and include it in the report.
+// Track commits caused by cascading updates.
+var isCommitting = false;
+var hasScheduledUpdateInCurrentCommit = false;
+var hasScheduledUpdateInCurrentPhase = false;
+var commitCountInCurrentWorkLoop = 0;
+var effectCountInCurrentCommit = 0;
+var isWaitingForCallback = false;
+// During commits, we only show a measurement once per method name
+// to avoid stretch the commit phase with measurement overhead.
+var labelsInCurrentCommit = new Set();
+
+var formatMarkName = function (markName) {
+  return reactEmoji + ' ' + markName;
+};
+
+var formatLabel = function (label, warning$$1) {
+  var prefix = warning$$1 ? warningEmoji + ' ' : reactEmoji + ' ';
+  var suffix = warning$$1 ? ' Warning: ' + warning$$1 : '';
+  return '' + prefix + label + suffix;
 };
 
-var ReactDOMUnknownPropertyHook_1 = ReactDOMUnknownPropertyHook$1;
+var beginMark = function (markName) {
+  performance.mark(formatMarkName(markName));
+};
 
-var getCurrentFiberOwnerName = ReactDebugCurrentFiber_1.getCurrentFiberOwnerName;
+var clearMark = function (markName) {
+  performance.clearMarks(formatMarkName(markName));
+};
 
-var DOCUMENT_NODE$1 = HTMLNodeType_1.DOCUMENT_NODE;
-var DOCUMENT_FRAGMENT_NODE$1 = HTMLNodeType_1.DOCUMENT_FRAGMENT_NODE;
+var endMark = function (label, markName, warning$$1) {
+  var formattedMarkName = formatMarkName(markName);
+  var formattedLabel = formatLabel(label, warning$$1);
+  try {
+    performance.measure(formattedLabel, formattedMarkName);
+  } catch (err) {}
+  // If previous mark was missing for some reason, this will throw.
+  // This could only happen if React crashed in an unexpected place earlier.
+  // Don't pile on with more errors.
+
+  // Clear marks immediately to avoid growing buffer.
+  performance.clearMarks(formattedMarkName);
+  performance.clearMeasures(formattedLabel);
+};
 
+var getFiberMarkName = function (label, debugID) {
+  return label + ' (#' + debugID + ')';
+};
 
+var getFiberLabel = function (componentName, isMounted, phase) {
+  if (phase === null) {
+    // These are composite component total time measurements.
+    return componentName + ' [' + (isMounted ? 'update' : 'mount') + ']';
+  } else {
+    // Composite component methods.
+    return componentName + '.' + phase;
+  }
+};
 
+var beginFiberMark = function (fiber, phase) {
+  var componentName = getComponentName(fiber) || 'Unknown';
+  var debugID = fiber._debugID;
+  var isMounted = fiber.alternate !== null;
+  var label = getFiberLabel(componentName, isMounted, phase);
 
+  if (isCommitting && labelsInCurrentCommit.has(label)) {
+    // During the commit phase, we don't show duplicate labels because
+    // there is a fixed overhead for every measurement, and we don't
+    // want to stretch the commit phase beyond necessary.
+    return false;
+  }
+  labelsInCurrentCommit.add(label);
 
+  var markName = getFiberMarkName(label, debugID);
+  beginMark(markName);
+  return true;
+};
 
+var clearFiberMark = function (fiber, phase) {
+  var componentName = getComponentName(fiber) || 'Unknown';
+  var debugID = fiber._debugID;
+  var isMounted = fiber.alternate !== null;
+  var label = getFiberLabel(componentName, isMounted, phase);
+  var markName = getFiberMarkName(label, debugID);
+  clearMark(markName);
+};
 
+var endFiberMark = function (fiber, phase, warning$$1) {
+  var componentName = getComponentName(fiber) || 'Unknown';
+  var debugID = fiber._debugID;
+  var isMounted = fiber.alternate !== null;
+  var label = getFiberLabel(componentName, isMounted, phase);
+  var markName = getFiberMarkName(label, debugID);
+  endMark(label, markName, warning$$1);
+};
 
-{
-  var warning$3 = require$$0;
+var shouldIgnoreFiber = function (fiber) {
+  // Host components should be skipped in the timeline.
+  // We could check typeof fiber.type, but does this work with RN?
+  switch (fiber.tag) {
+    case HostRoot:
+    case HostComponent:
+    case HostText:
+    case HostPortal:
+    case ReturnComponent:
+    case Fragment:
+      return true;
+    default:
+      return false;
+  }
+};
+
+var clearPendingPhaseMeasurement = function () {
+  if (currentPhase !== null && currentPhaseFiber !== null) {
+    clearFiberMark(currentPhaseFiber, currentPhase);
+  }
+  currentPhaseFiber = null;
+  currentPhase = null;
+  hasScheduledUpdateInCurrentPhase = false;
+};
+
+var pauseTimers = function () {
+  // Stops all currently active measurements so that they can be resumed
+  // if we continue in a later deferred loop from the same unit of work.
+  var fiber = currentFiber;
+  while (fiber) {
+    if (fiber._debugIsCurrentlyTiming) {
+      endFiberMark(fiber, null, null);
+    }
+    fiber = fiber['return'];
+  }
+};
+
+var resumeTimersRecursively = function (fiber) {
+  if (fiber['return'] !== null) {
+    resumeTimersRecursively(fiber['return']);
+  }
+  if (fiber._debugIsCurrentlyTiming) {
+    beginFiberMark(fiber, null);
+  }
+};
 
-  var _require3$1 = ReactDebugCurrentFiber_1,
-      getCurrentFiberStackAddendum = _require3$1.getCurrentFiberStackAddendum;
+var resumeTimers = function () {
+  // Resumes all measurements that were active during the last deferred loop.
+  if (currentFiber !== null) {
+    resumeTimersRecursively(currentFiber);
+  }
+};
 
-  var ReactDOMInvalidARIAHook = ReactDOMInvalidARIAHook_1;
-  var ReactDOMNullInputValuePropHook = ReactDOMNullInputValuePropHook_1;
-  var ReactDOMUnknownPropertyHook = ReactDOMUnknownPropertyHook_1;
-  var validateARIAProperties = ReactDOMInvalidARIAHook.validateProperties;
-  var validateInputProperties = ReactDOMNullInputValuePropHook.validateProperties;
-  var validateUnknownProperties = ReactDOMUnknownPropertyHook.validateProperties;
+function recordEffect() {
+  if (enableUserTimingAPI) {
+    effectCountInCurrentCommit++;
+  }
 }
 
-var didWarnInvalidHydration = false;
-var didWarnShadyDOM = false;
+function recordScheduleUpdate() {
+  if (enableUserTimingAPI) {
+    if (isCommitting) {
+      hasScheduledUpdateInCurrentCommit = true;
+    }
+    if (currentPhase !== null && currentPhase !== 'componentWillMount' && currentPhase !== 'componentWillReceiveProps') {
+      hasScheduledUpdateInCurrentPhase = true;
+    }
+  }
+}
 
-var listenTo = ReactBrowserEventEmitter_1.listenTo;
-var registrationNameModules = EventPluginRegistry_1.registrationNameModules;
+function startRequestCallbackTimer() {
+  if (enableUserTimingAPI) {
+    if (supportsUserTiming && !isWaitingForCallback) {
+      isWaitingForCallback = true;
+      beginMark('(Waiting for async callback...)');
+    }
+  }
+}
 
-var DANGEROUSLY_SET_INNER_HTML = 'dangerouslySetInnerHTML';
-var SUPPRESS_CONTENT_EDITABLE_WARNING = 'suppressContentEditableWarning';
-var CHILDREN = 'children';
-var STYLE = 'style';
-var HTML = '__html';
+function stopRequestCallbackTimer(didExpire) {
+  if (enableUserTimingAPI) {
+    if (supportsUserTiming) {
+      isWaitingForCallback = false;
+      var warning$$1 = didExpire ? 'React was blocked by main thread' : null;
+      endMark('(Waiting for async callback...)', '(Waiting for async callback...)', warning$$1);
+    }
+  }
+}
 
-var HTML_NAMESPACE$1 = DOMNamespaces.Namespaces.html;
-var getIntrinsicNamespace$1 = DOMNamespaces.getIntrinsicNamespace;
+function startWorkTimer(fiber) {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
+      return;
+    }
+    // If we pause, this is the fiber to unwind from.
+    currentFiber = fiber;
+    if (!beginFiberMark(fiber, null)) {
+      return;
+    }
+    fiber._debugIsCurrentlyTiming = true;
+  }
+}
 
+function cancelWorkTimer(fiber) {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
+      return;
+    }
+    // Remember we shouldn't complete measurement for this fiber.
+    // Otherwise flamechart will be deep even for small updates.
+    fiber._debugIsCurrentlyTiming = false;
+    clearFiberMark(fiber, null);
+  }
+}
 
-{
-  var warnedUnknownTags = {
-    // Chrome is the only major browser not shipping <time>. But as of July
-    // 2017 it intends to ship it due to widespread usage. We intentionally
-    // *don't* warn for <time> even if it's unrecognized by Chrome because
-    // it soon will be, and many apps have been using it anyway.
-    time: true
-  };
+function stopWorkTimer(fiber) {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
+      return;
+    }
+    // If we pause, its parent is the fiber to unwind from.
+    currentFiber = fiber['return'];
+    if (!fiber._debugIsCurrentlyTiming) {
+      return;
+    }
+    fiber._debugIsCurrentlyTiming = false;
+    endFiberMark(fiber, null, null);
+  }
+}
 
-  var validatePropertiesInDevelopment = function (type, props) {
-    validateARIAProperties(type, props);
-    validateInputProperties(type, props);
-    validateUnknownProperties(type, props);
-  };
+function stopFailedWorkTimer(fiber) {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
+      return;
+    }
+    // If we pause, its parent is the fiber to unwind from.
+    currentFiber = fiber['return'];
+    if (!fiber._debugIsCurrentlyTiming) {
+      return;
+    }
+    fiber._debugIsCurrentlyTiming = false;
+    var warning$$1 = 'An error was thrown inside this error boundary';
+    endFiberMark(fiber, null, warning$$1);
+  }
+}
 
-  var warnForTextDifference = function (serverText, clientText) {
-    if (didWarnInvalidHydration) {
+function startPhaseTimer(fiber, phase) {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
       return;
     }
-    didWarnInvalidHydration = true;
-    warning$3(false, 'Text content did not match. Server: "%s" Client: "%s"', serverText, clientText);
-  };
+    clearPendingPhaseMeasurement();
+    if (!beginFiberMark(fiber, phase)) {
+      return;
+    }
+    currentPhaseFiber = fiber;
+    currentPhase = phase;
+  }
+}
 
-  var warnForPropDifference = function (propName, serverValue, clientValue) {
-    if (didWarnInvalidHydration) {
+function stopPhaseTimer() {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
       return;
     }
-    didWarnInvalidHydration = true;
-    warning$3(false, 'Prop `%s` did not match. Server: %s Client: %s', propName, JSON.stringify(serverValue), JSON.stringify(clientValue));
-  };
+    if (currentPhase !== null && currentPhaseFiber !== null) {
+      var warning$$1 = hasScheduledUpdateInCurrentPhase ? 'Scheduled a cascading update' : null;
+      endFiberMark(currentPhaseFiber, currentPhase, warning$$1);
+    }
+    currentPhase = null;
+    currentPhaseFiber = null;
+  }
+}
 
-  var warnForExtraAttributes = function (attributeNames) {
-    if (didWarnInvalidHydration) {
+function startWorkLoopTimer(nextUnitOfWork) {
+  if (enableUserTimingAPI) {
+    currentFiber = nextUnitOfWork;
+    if (!supportsUserTiming) {
       return;
     }
-    didWarnInvalidHydration = true;
-    var names = [];
-    attributeNames.forEach(function (name) {
-      names.push(name);
-    });
-    warning$3(false, 'Extra attributes from the server: %s', names);
-  };
+    commitCountInCurrentWorkLoop = 0;
+    // This is top level call.
+    // Any other measurements are performed within.
+    beginMark('(React Tree Reconciliation)');
+    // Resume any measurements that were in progress during the last loop.
+    resumeTimers();
+  }
+}
 
-  var warnForInvalidEventListener = function (registrationName, listener) {
-    warning$3(false, 'Expected `%s` listener to be a function, instead got a value of `%s` type.%s', registrationName, typeof listener, getCurrentFiberStackAddendum());
-  };
+function stopWorkLoopTimer(interruptedBy) {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
+      return;
+    }
+    var warning$$1 = null;
+    if (interruptedBy !== null) {
+      if (interruptedBy.tag === HostRoot) {
+        warning$$1 = 'A top-level update interrupted the previous render';
+      } else {
+        var componentName = getComponentName(interruptedBy) || 'Unknown';
+        warning$$1 = 'An update to ' + componentName + ' interrupted the previous render';
+      }
+    } else if (commitCountInCurrentWorkLoop > 1) {
+      warning$$1 = 'There were cascading updates';
+    }
+    commitCountInCurrentWorkLoop = 0;
+    // Pause any measurements until the next loop.
+    pauseTimers();
+    endMark('(React Tree Reconciliation)', '(React Tree Reconciliation)', warning$$1);
+  }
+}
 
-  var testDocument;
-  // Parse the HTML and read it back to normalize the HTML string so that it
-  // can be used for comparison.
-  var normalizeHTML = function (parent, html) {
-    if (!testDocument) {
-      testDocument = document.implementation.createHTMLDocument();
+function startCommitTimer() {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
+      return;
     }
-    var testElement = parent.namespaceURI === HTML_NAMESPACE$1 ? testDocument.createElement(parent.tagName) : testDocument.createElementNS(parent.namespaceURI, parent.tagName);
-    testElement.innerHTML = html;
-    return testElement.innerHTML;
-  };
+    isCommitting = true;
+    hasScheduledUpdateInCurrentCommit = false;
+    labelsInCurrentCommit.clear();
+    beginMark('(Committing Changes)');
+  }
 }
 
-function ensureListeningTo(rootContainerElement, registrationName) {
-  var isDocumentOrFragment = rootContainerElement.nodeType === DOCUMENT_NODE$1 || rootContainerElement.nodeType === DOCUMENT_FRAGMENT_NODE$1;
-  var doc = isDocumentOrFragment ? rootContainerElement : rootContainerElement.ownerDocument;
-  listenTo(registrationName, doc);
+function stopCommitTimer() {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
+      return;
+    }
+
+    var warning$$1 = null;
+    if (hasScheduledUpdateInCurrentCommit) {
+      warning$$1 = 'Lifecycle hook scheduled a cascading update';
+    } else if (commitCountInCurrentWorkLoop > 0) {
+      warning$$1 = 'Caused by a cascading update in earlier commit';
+    }
+    hasScheduledUpdateInCurrentCommit = false;
+    commitCountInCurrentWorkLoop++;
+    isCommitting = false;
+    labelsInCurrentCommit.clear();
+
+    endMark('(Committing Changes)', '(Committing Changes)', warning$$1);
+  }
 }
 
-function getOwnerDocumentFromRootContainer(rootContainerElement) {
-  return rootContainerElement.nodeType === DOCUMENT_NODE$1 ? rootContainerElement : rootContainerElement.ownerDocument;
+function startCommitHostEffectsTimer() {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
+      return;
+    }
+    effectCountInCurrentCommit = 0;
+    beginMark('(Committing Host Effects)');
+  }
 }
 
-// There are so many media events, it makes sense to just
-// maintain a list rather than create a `trapBubbledEvent` for each
-var mediaEvents = {
-  topAbort: 'abort',
-  topCanPlay: 'canplay',
-  topCanPlayThrough: 'canplaythrough',
-  topDurationChange: 'durationchange',
-  topEmptied: 'emptied',
-  topEncrypted: 'encrypted',
-  topEnded: 'ended',
-  topError: 'error',
-  topLoadedData: 'loadeddata',
-  topLoadedMetadata: 'loadedmetadata',
-  topLoadStart: 'loadstart',
-  topPause: 'pause',
-  topPlay: 'play',
-  topPlaying: 'playing',
-  topProgress: 'progress',
-  topRateChange: 'ratechange',
-  topSeeked: 'seeked',
-  topSeeking: 'seeking',
-  topStalled: 'stalled',
-  topSuspend: 'suspend',
-  topTimeUpdate: 'timeupdate',
-  topVolumeChange: 'volumechange',
-  topWaiting: 'waiting'
-};
-
-function trapClickOnNonInteractiveElement(node) {
-  // Mobile Safari does not fire properly bubble click events on
-  // non-interactive elements, which means delegated click listeners do not
-  // fire. The workaround for this bug involves attaching an empty click
-  // listener on the target node.
-  // http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
-  // Just set it using the onclick property so that we don't have to manage any
-  // bookkeeping for it. Not sure if we need to clear it when the listener is
-  // removed.
-  // TODO: Only do this for the relevant Safaris maybe?
-  node.onclick = emptyFunction;
+function stopCommitHostEffectsTimer() {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
+      return;
+    }
+    var count = effectCountInCurrentCommit;
+    effectCountInCurrentCommit = 0;
+    endMark('(Committing Host Effects: ' + count + ' Total)', '(Committing Host Effects)', null);
+  }
 }
 
-function setInitialDOMProperties(domElement, rootContainerElement, nextProps, isCustomComponentTag) {
-  for (var propKey in nextProps) {
-    if (!nextProps.hasOwnProperty(propKey)) {
-      continue;
-    }
-    var nextProp = nextProps[propKey];
-    if (propKey === STYLE) {
-      {
-        if (nextProp) {
-          // Freeze the next style object so that we can assume it won't be
-          // mutated. We have already warned for this in the past.
-          Object.freeze(nextProp);
-        }
-      }
-      // Relies on `updateStylesByID` not mutating `styleUpdates`.
-      CSSPropertyOperations_1.setValueForStyles(domElement, nextProp);
-    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
-      var nextHtml = nextProp ? nextProp[HTML] : undefined;
-      if (nextHtml != null) {
-        setInnerHTML_1(domElement, nextHtml);
-      }
-    } else if (propKey === CHILDREN) {
-      if (typeof nextProp === 'string') {
-        setTextContent_1(domElement, nextProp);
-      } else if (typeof nextProp === 'number') {
-        setTextContent_1(domElement, '' + nextProp);
-      }
-    } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING) {
-      // Noop
-    } else if (registrationNameModules.hasOwnProperty(propKey)) {
-      if (nextProp != null) {
-        if (true && typeof nextProp !== 'function') {
-          warnForInvalidEventListener(propKey, nextProp);
-        }
-        ensureListeningTo(rootContainerElement, propKey);
-      }
-    } else if (isCustomComponentTag) {
-      DOMPropertyOperations_1.setValueForAttribute(domElement, propKey, nextProp);
-    } else if (nextProp != null) {
-      // If we're updating to null or undefined, we should remove the property
-      // from the DOM node instead of inadvertently setting to a string. This
-      // brings us in line with the same behavior we have on initial render.
-      DOMPropertyOperations_1.setValueForProperty(domElement, propKey, nextProp);
+function startCommitLifeCyclesTimer() {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
+      return;
     }
+    effectCountInCurrentCommit = 0;
+    beginMark('(Calling Lifecycle Methods)');
   }
 }
 
-function updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag) {
-  // TODO: Handle wasCustomComponentTag
-  for (var i = 0; i < updatePayload.length; i += 2) {
-    var propKey = updatePayload[i];
-    var propValue = updatePayload[i + 1];
-    if (propKey === STYLE) {
-      CSSPropertyOperations_1.setValueForStyles(domElement, propValue);
-    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
-      setInnerHTML_1(domElement, propValue);
-    } else if (propKey === CHILDREN) {
-      setTextContent_1(domElement, propValue);
-    } else if (isCustomComponentTag) {
-      if (propValue != null) {
-        DOMPropertyOperations_1.setValueForAttribute(domElement, propKey, propValue);
-      } else {
-        DOMPropertyOperations_1.deleteValueForAttribute(domElement, propKey);
-      }
-    } else if (propValue != null) {
-      DOMPropertyOperations_1.setValueForProperty(domElement, propKey, propValue);
-    } else {
-      // If we're updating to null or undefined, we should remove the property
-      // from the DOM node instead of inadvertently setting to a string. This
-      // brings us in line with the same behavior we have on initial render.
-      DOMPropertyOperations_1.deleteValueForProperty(domElement, propKey);
+function stopCommitLifeCyclesTimer() {
+  if (enableUserTimingAPI) {
+    if (!supportsUserTiming) {
+      return;
     }
+    var count = effectCountInCurrentCommit;
+    effectCountInCurrentCommit = 0;
+    endMark('(Calling Lifecycle Methods: ' + count + ' Total)', '(Calling Lifecycle Methods)', null);
   }
 }
 
-var ReactDOMFiberComponent = {
-  createElement: function (type, props, rootContainerElement, parentNamespace) {
-    // We create tags in the namespace of their parent container, except HTML
-    var ownerDocument = getOwnerDocumentFromRootContainer(rootContainerElement);
-    var domElement;
-    var namespaceURI = parentNamespace;
-    if (namespaceURI === HTML_NAMESPACE$1) {
-      namespaceURI = getIntrinsicNamespace$1(type);
-    }
-    if (namespaceURI === HTML_NAMESPACE$1) {
-      {
-        var isCustomComponentTag = isCustomComponent_1(type, props);
-        // Should this check be gated by parent namespace? Not sure we want to
-        // allow <SVG> or <mATH>.
-        warning$3(isCustomComponentTag || type === type.toLowerCase(), '<%s /> is using uppercase HTML. Always use lowercase HTML tags ' + 'in React.', type);
-      }
-
-      if (type === 'script') {
-        // Create the script via .innerHTML so its "parser-inserted" flag is
-        // set to true and it does not execute
-        var div = ownerDocument.createElement('div');
-        div.innerHTML = '<script><' + '/script>'; // eslint-disable-line
-        // This is guaranteed to yield a script element.
-        var firstChild = div.firstChild;
-        domElement = div.removeChild(firstChild);
-      } else if (typeof props.is === 'string') {
-        // $FlowIssue `createElement` should be updated for Web Components
-        domElement = ownerDocument.createElement(type, { is: props.is });
-      } else {
-        // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
-        // See discussion in https://github.com/facebook/react/pull/6896
-        // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
-        domElement = ownerDocument.createElement(type);
-      }
-    } else {
-      domElement = ownerDocument.createElementNS(namespaceURI, type);
-    }
+{
+  var warnedAboutMissingGetChildContext = {};
+}
 
-    {
-      if (namespaceURI === HTML_NAMESPACE$1) {
-        if (!isCustomComponentTag && Object.prototype.toString.call(domElement) === '[object HTMLUnknownElement]' && !Object.prototype.hasOwnProperty.call(warnedUnknownTags, type)) {
-          warnedUnknownTags[type] = true;
-          warning$3(false, 'The tag <%s> is unrecognized in this browser. ' + 'If you meant to render a React component, start its name with ' + 'an uppercase letter.', type);
-        }
-      }
-    }
+// A cursor to the current merged context object on the stack.
+var contextStackCursor = createCursor(emptyObject);
+// A cursor to a boolean indicating whether the context has changed.
+var didPerformWorkStackCursor = createCursor(false);
+// Keep track of the previous context object that was on the stack.
+// We use this to get access to the parent context after we have already
+// pushed the next context provider, and now need to merge their contexts.
+var previousContext = emptyObject;
 
-    return domElement;
-  },
-  createTextNode: function (text, rootContainerElement) {
-    return getOwnerDocumentFromRootContainer(rootContainerElement).createTextNode(text);
-  },
-  setInitialProperties: function (domElement, tag, rawProps, rootContainerElement) {
-    var isCustomComponentTag = isCustomComponent_1(tag, rawProps);
-    {
-      validatePropertiesInDevelopment(tag, rawProps);
-      if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
-        warning$3(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerName() || 'A component');
-        didWarnShadyDOM = true;
-      }
-    }
+function getUnmaskedContext(workInProgress) {
+  var hasOwnContext = isContextProvider(workInProgress);
+  if (hasOwnContext) {
+    // If the fiber is a context provider itself, when we read its context
+    // we have already pushed its own child context on the stack. A context
+    // provider should not "see" its own child context. Therefore we read the
+    // previous (parent) context instead for a context provider.
+    return previousContext;
+  }
+  return contextStackCursor.current;
+}
 
-    // TODO: Make sure that we check isMounted before firing any of these events.
-    var props;
-    switch (tag) {
-      case 'iframe':
-      case 'object':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topLoad', 'load', domElement);
-        props = rawProps;
-        break;
-      case 'video':
-      case 'audio':
-        // Create listener for each media event
-        for (var event in mediaEvents) {
-          if (mediaEvents.hasOwnProperty(event)) {
-            ReactBrowserEventEmitter_1.trapBubbledEvent(event, mediaEvents[event], domElement);
-          }
-        }
-        props = rawProps;
-        break;
-      case 'source':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topError', 'error', domElement);
-        props = rawProps;
-        break;
-      case 'img':
-      case 'image':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topError', 'error', domElement);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topLoad', 'load', domElement);
-        props = rawProps;
-        break;
-      case 'form':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topReset', 'reset', domElement);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topSubmit', 'submit', domElement);
-        props = rawProps;
-        break;
-      case 'details':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topToggle', 'toggle', domElement);
-        props = rawProps;
-        break;
-      case 'input':
-        ReactDOMFiberInput.initWrapperState(domElement, rawProps);
-        props = ReactDOMFiberInput.getHostProps(domElement, rawProps);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topInvalid', 'invalid', domElement);
-        // For controlled components we always need to ensure we're listening
-        // to onChange. Even if there is no listener.
-        ensureListeningTo(rootContainerElement, 'onChange');
-        break;
-      case 'option':
-        ReactDOMFiberOption.validateProps(domElement, rawProps);
-        props = ReactDOMFiberOption.getHostProps(domElement, rawProps);
-        break;
-      case 'select':
-        ReactDOMFiberSelect.initWrapperState(domElement, rawProps);
-        props = ReactDOMFiberSelect.getHostProps(domElement, rawProps);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topInvalid', 'invalid', domElement);
-        // For controlled components we always need to ensure we're listening
-        // to onChange. Even if there is no listener.
-        ensureListeningTo(rootContainerElement, 'onChange');
-        break;
-      case 'textarea':
-        ReactDOMFiberTextarea.initWrapperState(domElement, rawProps);
-        props = ReactDOMFiberTextarea.getHostProps(domElement, rawProps);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topInvalid', 'invalid', domElement);
-        // For controlled components we always need to ensure we're listening
-        // to onChange. Even if there is no listener.
-        ensureListeningTo(rootContainerElement, 'onChange');
-        break;
-      default:
-        props = rawProps;
-    }
+function cacheContext(workInProgress, unmaskedContext, maskedContext) {
+  var instance = workInProgress.stateNode;
+  instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext;
+  instance.__reactInternalMemoizedMaskedChildContext = maskedContext;
+}
 
-    assertValidProps_1(tag, props, getCurrentFiberOwnerName);
+function getMaskedContext(workInProgress, unmaskedContext) {
+  var type = workInProgress.type;
+  var contextTypes = type.contextTypes;
+  if (!contextTypes) {
+    return emptyObject;
+  }
 
-    setInitialDOMProperties(domElement, rootContainerElement, props, isCustomComponentTag);
+  // Avoid recreating masked context unless unmasked context has changed.
+  // Failing to do this will result in unnecessary calls to componentWillReceiveProps.
+  // This may trigger infinite loops if componentWillReceiveProps calls setState.
+  var instance = workInProgress.stateNode;
+  if (instance && instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext) {
+    return instance.__reactInternalMemoizedMaskedChildContext;
+  }
 
-    switch (tag) {
-      case 'input':
-        // TODO: Make sure we check if this is still unmounted or do any clean
-        // up necessary since we never stop tracking anymore.
-        inputValueTracking_1.track(domElement);
-        ReactDOMFiberInput.postMountWrapper(domElement, rawProps);
-        break;
-      case 'textarea':
-        // TODO: Make sure we check if this is still unmounted or do any clean
-        // up necessary since we never stop tracking anymore.
-        inputValueTracking_1.track(domElement);
-        ReactDOMFiberTextarea.postMountWrapper(domElement, rawProps);
-        break;
-      case 'option':
-        ReactDOMFiberOption.postMountWrapper(domElement, rawProps);
-        break;
-      case 'select':
-        ReactDOMFiberSelect.postMountWrapper(domElement, rawProps);
-        break;
-      default:
-        if (typeof props.onClick === 'function') {
-          // TODO: This cast may not be sound for SVG, MathML or custom elements.
-          trapClickOnNonInteractiveElement(domElement);
-        }
-        break;
-    }
-  },
+  var context = {};
+  for (var key in contextTypes) {
+    context[key] = unmaskedContext[key];
+  }
 
+  {
+    var name = getComponentName(workInProgress) || 'Unknown';
+    checkPropTypes(contextTypes, context, 'context', name, ReactDebugCurrentFiber.getCurrentFiberStackAddendum);
+  }
 
-  // Calculate the diff between the two objects.
-  diffProperties: function (domElement, tag, lastRawProps, nextRawProps, rootContainerElement) {
-    {
-      validatePropertiesInDevelopment(tag, nextRawProps);
-    }
+  // Cache unmasked context so we can avoid recreating masked context unless necessary.
+  // Context is created before the class component is instantiated so check for instance.
+  if (instance) {
+    cacheContext(workInProgress, unmaskedContext, context);
+  }
 
-    var updatePayload = null;
+  return context;
+}
 
-    var lastProps;
-    var nextProps;
-    switch (tag) {
-      case 'input':
-        lastProps = ReactDOMFiberInput.getHostProps(domElement, lastRawProps);
-        nextProps = ReactDOMFiberInput.getHostProps(domElement, nextRawProps);
-        updatePayload = [];
-        break;
-      case 'option':
-        lastProps = ReactDOMFiberOption.getHostProps(domElement, lastRawProps);
-        nextProps = ReactDOMFiberOption.getHostProps(domElement, nextRawProps);
-        updatePayload = [];
-        break;
-      case 'select':
-        lastProps = ReactDOMFiberSelect.getHostProps(domElement, lastRawProps);
-        nextProps = ReactDOMFiberSelect.getHostProps(domElement, nextRawProps);
-        updatePayload = [];
-        break;
-      case 'textarea':
-        lastProps = ReactDOMFiberTextarea.getHostProps(domElement, lastRawProps);
-        nextProps = ReactDOMFiberTextarea.getHostProps(domElement, nextRawProps);
-        updatePayload = [];
-        break;
-      default:
-        lastProps = lastRawProps;
-        nextProps = nextRawProps;
-        if (typeof lastProps.onClick !== 'function' && typeof nextProps.onClick === 'function') {
-          // TODO: This cast may not be sound for SVG, MathML or custom elements.
-          trapClickOnNonInteractiveElement(domElement);
-        }
-        break;
-    }
+function hasContextChanged() {
+  return didPerformWorkStackCursor.current;
+}
 
-    assertValidProps_1(tag, nextProps, getCurrentFiberOwnerName);
+function isContextConsumer(fiber) {
+  return fiber.tag === ClassComponent && fiber.type.contextTypes != null;
+}
 
-    var propKey;
-    var styleName;
-    var styleUpdates = null;
-    for (propKey in lastProps) {
-      if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey) || lastProps[propKey] == null) {
-        continue;
+function isContextProvider(fiber) {
+  return fiber.tag === ClassComponent && fiber.type.childContextTypes != null;
+}
+
+function popContextProvider(fiber) {
+  if (!isContextProvider(fiber)) {
+    return;
+  }
+
+  pop(didPerformWorkStackCursor, fiber);
+  pop(contextStackCursor, fiber);
+}
+
+function popTopLevelContextObject(fiber) {
+  pop(didPerformWorkStackCursor, fiber);
+  pop(contextStackCursor, fiber);
+}
+
+function pushTopLevelContextObject(fiber, context, didChange) {
+  !(contextStackCursor.cursor == null) ? invariant(false, 'Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+
+  push(contextStackCursor, context, fiber);
+  push(didPerformWorkStackCursor, didChange, fiber);
+}
+
+function processChildContext(fiber, parentContext) {
+  var instance = fiber.stateNode;
+  var childContextTypes = fiber.type.childContextTypes;
+
+  // TODO (bvaughn) Replace this behavior with an invariant() in the future.
+  // It has only been added in Fiber to match the (unintentional) behavior in Stack.
+  if (typeof instance.getChildContext !== 'function') {
+    {
+      var componentName = getComponentName(fiber) || 'Unknown';
+
+      if (!warnedAboutMissingGetChildContext[componentName]) {
+        warnedAboutMissingGetChildContext[componentName] = true;
+        warning(false, '%s.childContextTypes is specified but there is no getChildContext() method ' + 'on the instance. You can either define getChildContext() on %s or remove ' + 'childContextTypes from it.', componentName, componentName);
       }
-      if (propKey === STYLE) {
-        var lastStyle = lastProps[propKey];
-        for (styleName in lastStyle) {
-          if (lastStyle.hasOwnProperty(styleName)) {
-            if (!styleUpdates) {
-              styleUpdates = {};
-            }
-            styleUpdates[styleName] = '';
-          }
-        }
-      } else if (propKey === DANGEROUSLY_SET_INNER_HTML || propKey === CHILDREN) {
-        // Noop. This is handled by the clear text mechanism.
-      } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING) {
-        // Noop
-      } else if (registrationNameModules.hasOwnProperty(propKey)) {
-        // This is a special case. If any listener updates we need to ensure
-        // that the "current" fiber pointer gets updated so we need a commit
-        // to update this element.
-        if (!updatePayload) {
-          updatePayload = [];
-        }
-      } else {
-        // For all other deleted properties we add it to the queue. We use
-        // the whitelist in the commit phase instead.
-        (updatePayload = updatePayload || []).push(propKey, null);
-      }
-    }
-    for (propKey in nextProps) {
-      var nextProp = nextProps[propKey];
-      var lastProp = lastProps != null ? lastProps[propKey] : undefined;
-      if (!nextProps.hasOwnProperty(propKey) || nextProp === lastProp || nextProp == null && lastProp == null) {
-        continue;
-      }
-      if (propKey === STYLE) {
-        {
-          if (nextProp) {
-            // Freeze the next style object so that we can assume it won't be
-            // mutated. We have already warned for this in the past.
-            Object.freeze(nextProp);
-          }
-        }
-        if (lastProp) {
-          // Unset styles on `lastProp` but not on `nextProp`.
-          for (styleName in lastProp) {
-            if (lastProp.hasOwnProperty(styleName) && (!nextProp || !nextProp.hasOwnProperty(styleName))) {
-              if (!styleUpdates) {
-                styleUpdates = {};
-              }
-              styleUpdates[styleName] = '';
-            }
-          }
-          // Update styles that changed since `lastProp`.
-          for (styleName in nextProp) {
-            if (nextProp.hasOwnProperty(styleName) && lastProp[styleName] !== nextProp[styleName]) {
-              if (!styleUpdates) {
-                styleUpdates = {};
-              }
-              styleUpdates[styleName] = nextProp[styleName];
-            }
-          }
-        } else {
-          // Relies on `updateStylesByID` not mutating `styleUpdates`.
-          if (!styleUpdates) {
-            if (!updatePayload) {
-              updatePayload = [];
-            }
-            updatePayload.push(propKey, styleUpdates);
-          }
-          styleUpdates = nextProp;
-        }
-      } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
-        var nextHtml = nextProp ? nextProp[HTML] : undefined;
-        var lastHtml = lastProp ? lastProp[HTML] : undefined;
-        if (nextHtml != null) {
-          if (lastHtml !== nextHtml) {
-            (updatePayload = updatePayload || []).push(propKey, '' + nextHtml);
-          }
-        } else {
-          // TODO: It might be too late to clear this if we have children
-          // inserted already.
-        }
-      } else if (propKey === CHILDREN) {
-        if (lastProp !== nextProp && (typeof nextProp === 'string' || typeof nextProp === 'number')) {
-          (updatePayload = updatePayload || []).push(propKey, '' + nextProp);
-        }
-      } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING) {
-        // Noop
-      } else if (registrationNameModules.hasOwnProperty(propKey)) {
-        if (nextProp != null) {
-          // We eagerly listen to this even though we haven't committed yet.
-          if (true && typeof nextProp !== 'function') {
-            warnForInvalidEventListener(propKey, nextProp);
-          }
-          ensureListeningTo(rootContainerElement, propKey);
-        }
-        if (!updatePayload && lastProp !== nextProp) {
-          // This is a special case. If any listener updates we need to ensure
-          // that the "current" props pointer gets updated so we need a commit
-          // to update this element.
-          updatePayload = [];
-        }
-      } else {
-        // For any other property we always add it to the queue and then we
-        // filter it out using the whitelist during the commit.
-        (updatePayload = updatePayload || []).push(propKey, nextProp);
-      }
-    }
-    if (styleUpdates) {
-      (updatePayload = updatePayload || []).push(STYLE, styleUpdates);
     }
-    return updatePayload;
-  },
+    return parentContext;
+  }
 
+  var childContext = void 0;
+  {
+    ReactDebugCurrentFiber.setCurrentPhase('getChildContext');
+  }
+  startPhaseTimer(fiber, 'getChildContext');
+  childContext = instance.getChildContext();
+  stopPhaseTimer();
+  {
+    ReactDebugCurrentFiber.setCurrentPhase(null);
+  }
+  for (var contextKey in childContext) {
+    !(contextKey in childContextTypes) ? invariant(false, '%s.getChildContext(): key "%s" is not defined in childContextTypes.', getComponentName(fiber) || 'Unknown', contextKey) : void 0;
+  }
+  {
+    var name = getComponentName(fiber) || 'Unknown';
+    checkPropTypes(childContextTypes, childContext, 'child context', name,
+    // In practice, there is one case in which we won't get a stack. It's when
+    // somebody calls unstable_renderSubtreeIntoContainer() and we process
+    // context from the parent component instance. The stack will be missing
+    // because it's outside of the reconciliation, and so the pointer has not
+    // been set. This is rare and doesn't matter. We'll also remove that API.
+    ReactDebugCurrentFiber.getCurrentFiberStackAddendum);
+  }
 
-  // Apply the diff.
-  updateProperties: function (domElement, updatePayload, tag, lastRawProps, nextRawProps) {
-    var wasCustomComponentTag = isCustomComponent_1(tag, lastRawProps);
-    var isCustomComponentTag = isCustomComponent_1(tag, nextRawProps);
-    // Apply the diff.
-    updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag);
-
-    // TODO: Ensure that an update gets scheduled if any of the special props
-    // changed.
-    switch (tag) {
-      case 'input':
-        // Update the wrapper around inputs *after* updating props. This has to
-        // happen after `updateDOMProperties`. Otherwise HTML5 input validations
-        // raise warnings and prevent the new value from being assigned.
-        ReactDOMFiberInput.updateWrapper(domElement, nextRawProps);
-
-        // We also check that we haven't missed a value update, such as a
-        // Radio group shifting the checked value to another named radio input.
-        inputValueTracking_1.updateValueIfChanged(domElement);
-        break;
-      case 'textarea':
-        ReactDOMFiberTextarea.updateWrapper(domElement, nextRawProps);
-        break;
-      case 'select':
-        // <select> value update needs to occur after <option> children
-        // reconciliation
-        ReactDOMFiberSelect.postUpdateWrapper(domElement, nextRawProps);
-        break;
-    }
-  },
-  diffHydratedProperties: function (domElement, tag, rawProps, parentNamespace, rootContainerElement) {
-    {
-      var isCustomComponentTag = isCustomComponent_1(tag, rawProps);
-      validatePropertiesInDevelopment(tag, rawProps);
-      if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
-        warning$3(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerName() || 'A component');
-        didWarnShadyDOM = true;
-      }
-    }
+  return _assign({}, parentContext, childContext);
+}
 
-    // TODO: Make sure that we check isMounted before firing any of these events.
-    switch (tag) {
-      case 'iframe':
-      case 'object':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topLoad', 'load', domElement);
-        break;
-      case 'video':
-      case 'audio':
-        // Create listener for each media event
-        for (var event in mediaEvents) {
-          if (mediaEvents.hasOwnProperty(event)) {
-            ReactBrowserEventEmitter_1.trapBubbledEvent(event, mediaEvents[event], domElement);
-          }
-        }
-        break;
-      case 'source':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topError', 'error', domElement);
-        break;
-      case 'img':
-      case 'image':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topError', 'error', domElement);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topLoad', 'load', domElement);
-        break;
-      case 'form':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topReset', 'reset', domElement);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topSubmit', 'submit', domElement);
-        break;
-      case 'details':
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topToggle', 'toggle', domElement);
-        break;
-      case 'input':
-        ReactDOMFiberInput.initWrapperState(domElement, rawProps);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topInvalid', 'invalid', domElement);
-        // For controlled components we always need to ensure we're listening
-        // to onChange. Even if there is no listener.
-        ensureListeningTo(rootContainerElement, 'onChange');
-        break;
-      case 'option':
-        ReactDOMFiberOption.validateProps(domElement, rawProps);
-        break;
-      case 'select':
-        ReactDOMFiberSelect.initWrapperState(domElement, rawProps);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topInvalid', 'invalid', domElement);
-        // For controlled components we always need to ensure we're listening
-        // to onChange. Even if there is no listener.
-        ensureListeningTo(rootContainerElement, 'onChange');
-        break;
-      case 'textarea':
-        ReactDOMFiberTextarea.initWrapperState(domElement, rawProps);
-        ReactBrowserEventEmitter_1.trapBubbledEvent('topInvalid', 'invalid', domElement);
-        // For controlled components we always need to ensure we're listening
-        // to onChange. Even if there is no listener.
-        ensureListeningTo(rootContainerElement, 'onChange');
-        break;
-    }
+function pushContextProvider(workInProgress) {
+  if (!isContextProvider(workInProgress)) {
+    return false;
+  }
 
-    assertValidProps_1(tag, rawProps, getCurrentFiberOwnerName);
+  var instance = workInProgress.stateNode;
+  // We push the context as early as possible to ensure stack integrity.
+  // If the instance does not exist yet, we will push null at first,
+  // and replace it on the stack later when invalidating the context.
+  var memoizedMergedChildContext = instance && instance.__reactInternalMemoizedMergedChildContext || emptyObject;
 
-    {
-      var extraAttributeNames = new Set();
-      var attributes = domElement.attributes;
-      for (var i = 0; i < attributes.length; i++) {
-        var name = attributes[i].name.toLowerCase();
-        switch (name) {
-          // Built-in SSR attribute is whitelisted
-          case 'data-reactroot':
-            break;
-          // Controlled attributes are not validated
-          // TODO: Only ignore them on controlled tags.
-          case 'value':
-            break;
-          case 'checked':
-            break;
-          case 'selected':
-            break;
-          default:
-            // Intentionally use the original name.
-            // See discussion in https://github.com/facebook/react/pull/10676.
-            extraAttributeNames.add(attributes[i].name);
-        }
-      }
-    }
+  // Remember the parent context so we can merge with it later.
+  // Inherit the parent's did-perform-work value to avoid inadvertently blocking updates.
+  previousContext = contextStackCursor.current;
+  push(contextStackCursor, memoizedMergedChildContext, workInProgress);
+  push(didPerformWorkStackCursor, didPerformWorkStackCursor.current, workInProgress);
 
-    var updatePayload = null;
-    for (var propKey in rawProps) {
-      if (!rawProps.hasOwnProperty(propKey)) {
-        continue;
-      }
-      var nextProp = rawProps[propKey];
-      if (propKey === CHILDREN) {
-        // For text content children we compare against textContent. This
-        // might match additional HTML that is hidden when we read it using
-        // textContent. E.g. "foo" will match "f<span>oo</span>" but that still
-        // satisfies our requirement. Our requirement is not to produce perfect
-        // HTML and attributes. Ideally we should preserve structure but it's
-        // ok not to if the visible content is still enough to indicate what
-        // even listeners these nodes might be wired up to.
-        // TODO: Warn if there is more than a single textNode as a child.
-        // TODO: Should we use domElement.firstChild.nodeValue to compare?
-        if (typeof nextProp === 'string') {
-          if (domElement.textContent !== nextProp) {
-            {
-              warnForTextDifference(domElement.textContent, nextProp);
-            }
-            updatePayload = [CHILDREN, nextProp];
-          }
-        } else if (typeof nextProp === 'number') {
-          if (domElement.textContent !== '' + nextProp) {
-            {
-              warnForTextDifference(domElement.textContent, nextProp);
-            }
-            updatePayload = [CHILDREN, '' + nextProp];
-          }
-        }
-      } else if (registrationNameModules.hasOwnProperty(propKey)) {
-        if (nextProp != null) {
-          if (true && typeof nextProp !== 'function') {
-            warnForInvalidEventListener(propKey, nextProp);
-          }
-          ensureListeningTo(rootContainerElement, propKey);
-        }
-      } else {
-        // Validate that the properties correspond to their expected values.
-        var serverValue;
-        var propertyInfo;
-        if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING ||
-        // Controlled attributes are not validated
-        // TODO: Only ignore them on controlled tags.
-        propKey === 'value' || propKey === 'checked' || propKey === 'selected') {
-          // Noop
-        } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
-          var rawHtml = nextProp ? nextProp[HTML] || '' : '';
-          var serverHTML = domElement.innerHTML;
-          var expectedHTML = normalizeHTML(domElement, rawHtml);
-          if (expectedHTML !== serverHTML) {
-            warnForPropDifference(propKey, serverHTML, expectedHTML);
-          }
-        } else if (propKey === STYLE) {
-          // $FlowFixMe - Should be inferred as not undefined.
-          extraAttributeNames['delete'](propKey);
-          var expectedStyle = CSSPropertyOperations_1.createDangerousStringForStyles(nextProp);
-          serverValue = domElement.getAttribute('style');
-          if (expectedStyle !== serverValue) {
-            warnForPropDifference(propKey, serverValue, expectedStyle);
-          }
-        } else if (isCustomComponentTag) {
-          // $FlowFixMe - Should be inferred as not undefined.
-          extraAttributeNames['delete'](propKey.toLowerCase());
-          serverValue = DOMPropertyOperations_1.getValueForAttribute(domElement, propKey, nextProp);
+  return true;
+}
 
-          if (nextProp !== serverValue) {
-            warnForPropDifference(propKey, serverValue, nextProp);
-          }
-        } else if (DOMProperty_1.shouldSetAttribute(propKey, nextProp)) {
-          if (propertyInfo = DOMProperty_1.getPropertyInfo(propKey)) {
-            // $FlowFixMe - Should be inferred as not undefined.
-            extraAttributeNames['delete'](propertyInfo.attributeName);
-            serverValue = DOMPropertyOperations_1.getValueForProperty(domElement, propKey, nextProp);
-          } else {
-            var ownNamespace = parentNamespace;
-            if (ownNamespace === HTML_NAMESPACE$1) {
-              ownNamespace = getIntrinsicNamespace$1(tag);
-            }
-            if (ownNamespace === HTML_NAMESPACE$1) {
-              // $FlowFixMe - Should be inferred as not undefined.
-              extraAttributeNames['delete'](propKey.toLowerCase());
-            } else {
-              // $FlowFixMe - Should be inferred as not undefined.
-              extraAttributeNames['delete'](propKey);
-            }
-            serverValue = DOMPropertyOperations_1.getValueForAttribute(domElement, propKey, nextProp);
-          }
+function invalidateContextProvider(workInProgress, didChange) {
+  var instance = workInProgress.stateNode;
+  !instance ? invariant(false, 'Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue.') : void 0;
 
-          if (nextProp !== serverValue) {
-            warnForPropDifference(propKey, serverValue, nextProp);
-          }
-        }
-      }
-    }
+  if (didChange) {
+    // Merge parent and own context.
+    // Skip this if we're not updating due to sCU.
+    // This avoids unnecessarily recomputing memoized values.
+    var mergedContext = processChildContext(workInProgress, previousContext);
+    instance.__reactInternalMemoizedMergedChildContext = mergedContext;
 
-    {
-      // $FlowFixMe - Should be inferred as not undefined.
-      if (extraAttributeNames.size > 0) {
-        // $FlowFixMe - Should be inferred as not undefined.
-        warnForExtraAttributes(extraAttributeNames);
-      }
-    }
+    // Replace the old (or empty) context with the new one.
+    // It is important to unwind the context in the reverse order.
+    pop(didPerformWorkStackCursor, workInProgress);
+    pop(contextStackCursor, workInProgress);
+    // Now push the new context and mark that it has changed.
+    push(contextStackCursor, mergedContext, workInProgress);
+    push(didPerformWorkStackCursor, didChange, workInProgress);
+  } else {
+    pop(didPerformWorkStackCursor, workInProgress);
+    push(didPerformWorkStackCursor, didChange, workInProgress);
+  }
+}
 
-    switch (tag) {
-      case 'input':
-        // TODO: Make sure we check if this is still unmounted or do any clean
-        // up necessary since we never stop tracking anymore.
-        inputValueTracking_1.track(domElement);
-        ReactDOMFiberInput.postMountWrapper(domElement, rawProps);
-        break;
-      case 'textarea':
-        // TODO: Make sure we check if this is still unmounted or do any clean
-        // up necessary since we never stop tracking anymore.
-        inputValueTracking_1.track(domElement);
-        ReactDOMFiberTextarea.postMountWrapper(domElement, rawProps);
-        break;
-      case 'select':
-      case 'option':
-        // For input and textarea we current always set the value property at
-        // post mount to force it to diverge from attributes. However, for
-        // option and select we don't quite do the same thing and select
-        // is not resilient to the DOM state changing so we don't do that here.
-        // TODO: Consider not doing this for input and textarea.
-        break;
-      default:
-        if (typeof rawProps.onClick === 'function') {
-          // TODO: This cast may not be sound for SVG, MathML or custom elements.
-          trapClickOnNonInteractiveElement(domElement);
-        }
-        break;
-    }
+function resetContext() {
+  previousContext = emptyObject;
+  contextStackCursor.current = emptyObject;
+  didPerformWorkStackCursor.current = false;
+}
 
-    return updatePayload;
-  },
-  diffHydratedText: function (textNode, text) {
-    var isDifferent = textNode.nodeValue !== text;
-    {
-      if (isDifferent) {
-        warnForTextDifference(textNode.nodeValue, text);
-      }
-    }
-    return isDifferent;
-  },
-  warnForDeletedHydratableElement: function (parentNode, child) {
-    {
-      if (didWarnInvalidHydration) {
-        return;
-      }
-      didWarnInvalidHydration = true;
-      warning$3(false, 'Did not expect server HTML to contain a <%s> in <%s>.', child.nodeName.toLowerCase(), parentNode.nodeName.toLowerCase());
-    }
-  },
-  warnForDeletedHydratableText: function (parentNode, child) {
-    {
-      if (didWarnInvalidHydration) {
-        return;
-      }
-      didWarnInvalidHydration = true;
-      warning$3(false, 'Did not expect server HTML to contain the text node "%s" in <%s>.', child.nodeValue, parentNode.nodeName.toLowerCase());
-    }
-  },
-  warnForInsertedHydratedElement: function (parentNode, tag, props) {
-    {
-      if (didWarnInvalidHydration) {
-        return;
-      }
-      didWarnInvalidHydration = true;
-      warning$3(false, 'Expected server HTML to contain a matching <%s> in <%s>.', tag, parentNode.nodeName.toLowerCase());
-    }
-  },
-  warnForInsertedHydratedText: function (parentNode, text) {
-    {
-      if (text === '') {
-        // We expect to insert empty text nodes since they're not represented in
-        // the HTML.
-        // TODO: Remove this special case if we can just avoid inserting empty
-        // text nodes.
-        return;
-      }
-      if (didWarnInvalidHydration) {
-        return;
-      }
-      didWarnInvalidHydration = true;
-      warning$3(false, 'Expected server HTML to contain a matching text node for "%s" in <%s>.', text, parentNode.nodeName.toLowerCase());
-    }
-  },
-  restoreControlledState: function (domElement, tag, props) {
-    switch (tag) {
-      case 'input':
-        ReactDOMFiberInput.restoreControlledState(domElement, props);
-        return;
-      case 'textarea':
-        ReactDOMFiberTextarea.restoreControlledState(domElement, props);
-        return;
-      case 'select':
-        ReactDOMFiberSelect.restoreControlledState(domElement, props);
-        return;
+function findCurrentUnmaskedContext(fiber) {
+  // Currently this is only used with renderSubtreeIntoContainer; not sure if it
+  // makes sense elsewhere
+  !(isFiberMounted(fiber) && fiber.tag === ClassComponent) ? invariant(false, 'Expected subtree parent to be a mounted class component. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+
+  var node = fiber;
+  while (node.tag !== HostRoot) {
+    if (isContextProvider(node)) {
+      return node.stateNode.__reactInternalMemoizedMergedChildContext;
     }
+    var parent = node['return'];
+    !parent ? invariant(false, 'Found unexpected detached subtree parent. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    node = parent;
   }
-};
-
-var ReactDOMFiberComponent_1 = ReactDOMFiberComponent;
+  return node.stateNode.context;
+}
 
-// This is a built-in polyfill for requestIdleCallback. It works by scheduling
-// a requestAnimationFrame, storing the time for the start of the frame, then
-// scheduling a postMessage which gets scheduled after paint. Within the
-// postMessage handler do as much work as possible until time + frame rate.
-// By separating the idle call into a separate event tick we ensure that
-// layout, paint and other browser work is counted against the available time.
-// The frame rate is dynamically adjusted.
+var NoWork = 0; // TODO: Use an opaque type once ESLint et al support the syntax
 
+var Sync = 1;
+var Never = 2147483647; // Max int32: Math.pow(2, 31) - 1
 
+var UNIT_SIZE = 10;
+var MAGIC_NUMBER_OFFSET = 2;
 
-{
-  var warning$17 = require$$0;
+// 1 unit of expiration time represents 10ms.
+function msToExpirationTime(ms) {
+  // Always add an offset so that we don't clash with the magic number for NoWork.
+  return (ms / UNIT_SIZE | 0) + MAGIC_NUMBER_OFFSET;
+}
 
-  if (ExecutionEnvironment.canUseDOM && typeof requestAnimationFrame !== 'function') {
-    warning$17(false, 'React depends on requestAnimationFrame. Make sure that you load a ' + 'polyfill in older browsers. http://fb.me/react-polyfills');
-  }
+function expirationTimeToMs(expirationTime) {
+  return (expirationTime - MAGIC_NUMBER_OFFSET) * UNIT_SIZE;
 }
 
-// TODO: There's no way to cancel, because Fiber doesn't atm.
-var rIC = void 0;
+function ceiling(num, precision) {
+  return ((num / precision | 0) + 1) * precision;
+}
 
-if (!ExecutionEnvironment.canUseDOM) {
-  rIC = function (frameCallback) {
-    setTimeout(function () {
-      frameCallback({
-        timeRemaining: function () {
-          return Infinity;
-        }
-      });
-    });
-    return 0;
-  };
-} else if (typeof requestIdleCallback !== 'function') {
-  // Polyfill requestIdleCallback.
+function computeExpirationBucket(currentTime, expirationInMs, bucketSizeMs) {
+  return ceiling(currentTime + expirationInMs / UNIT_SIZE, bucketSizeMs / UNIT_SIZE);
+}
 
-  var scheduledRAFCallback = null;
-  var scheduledRICCallback = null;
+var NoContext = 0;
+var AsyncUpdates = 1;
 
-  var isIdleScheduled = false;
-  var isAnimationFrameScheduled = false;
+{
+  var hasBadMapPolyfill = false;
+  try {
+    var nonExtensibleObject = Object.preventExtensions({});
+    /* eslint-disable no-new */
+    
+    /* eslint-enable no-new */
+  } catch (e) {
+    // TODO: Consider warning about bad polyfills
+    hasBadMapPolyfill = true;
+  }
+}
 
-  var frameDeadline = 0;
-  // We start out assuming that we run at 30fps but then the heuristic tracking
-  // will adjust this value to a faster fps if we get more frequent animation
-  // frames.
-  var previousFrameTime = 33;
-  var activeFrameTime = 33;
+// A Fiber is work on a Component that needs to be done or was done. There can
+// be more than one per component.
 
-  var frameDeadlineObject = {
-    timeRemaining: typeof performance === 'object' && typeof performance.now === 'function' ? function () {
-      // We assume that if we have a performance timer that the rAF callback
-      // gets a performance timer value. Not sure if this is always true.
-      return frameDeadline - performance.now();
-    } : function () {
-      // As a fallback we use Date.now.
-      return frameDeadline - Date.now();
-    }
-  };
 
-  // We use the postMessage trick to defer idle work until after the repaint.
-  var messageKey = '__reactIdleCallback$' + Math.random().toString(36).slice(2);
-  var idleTick = function (event) {
-    if (event.source !== window || event.data !== messageKey) {
-      return;
-    }
-    isIdleScheduled = false;
-    var callback = scheduledRICCallback;
-    scheduledRICCallback = null;
-    if (callback !== null) {
-      callback(frameDeadlineObject);
-    }
-  };
-  // Assumes that we have addEventListener in this environment. Might need
-  // something better for old IE.
-  window.addEventListener('message', idleTick, false);
-
-  var animationTick = function (rafTime) {
-    isAnimationFrameScheduled = false;
-    var nextFrameTime = rafTime - frameDeadline + activeFrameTime;
-    if (nextFrameTime < activeFrameTime && previousFrameTime < activeFrameTime) {
-      if (nextFrameTime < 8) {
-        // Defensive coding. We don't support higher frame rates than 120hz.
-        // If we get lower than that, it is probably a bug.
-        nextFrameTime = 8;
-      }
-      // If one frame goes long, then the next one can be short to catch up.
-      // If two frames are short in a row, then that's an indication that we
-      // actually have a higher frame rate than what we're currently optimizing.
-      // We adjust our heuristic dynamically accordingly. For example, if we're
-      // running on 120hz display or 90hz VR display.
-      // Take the max of the two in case one of them was an anomaly due to
-      // missed frame deadlines.
-      activeFrameTime = nextFrameTime < previousFrameTime ? previousFrameTime : nextFrameTime;
-    } else {
-      previousFrameTime = nextFrameTime;
-    }
-    frameDeadline = rafTime + activeFrameTime;
-    if (!isIdleScheduled) {
-      isIdleScheduled = true;
-      window.postMessage(messageKey, '*');
-    }
-    var callback = scheduledRAFCallback;
-    scheduledRAFCallback = null;
-    if (callback !== null) {
-      callback(rafTime);
-    }
-  };
-
-  rIC = function (callback) {
-    // This assumes that we only schedule one callback at a time because that's
-    // how Fiber uses it.
-    scheduledRICCallback = callback;
-    if (!isAnimationFrameScheduled) {
-      // If rAF didn't already schedule one, we need to schedule a frame.
-      // TODO: If this rAF doesn't materialize because the browser throttles, we
-      // might want to still have setTimeout trigger rIC as a backup to ensure
-      // that we keep performing work.
-      isAnimationFrameScheduled = true;
-      requestAnimationFrame(animationTick);
-    }
-    return 0;
-  };
-} else {
-  rIC = requestIdleCallback;
+{
+  var debugCounter = 1;
 }
 
-var rIC_1 = rIC;
+function FiberNode(tag, key, internalContextTag) {
+  // Instance
+  this.tag = tag;
+  this.key = key;
+  this.type = null;
+  this.stateNode = null;
 
-var ReactDOMFrameScheduling = {
-	rIC: rIC_1
-};
+  // Fiber
+  this['return'] = null;
+  this.child = null;
+  this.sibling = null;
+  this.index = 0;
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactFeatureFlags
- * 
- */
+  this.ref = null;
 
-var ReactFeatureFlags = {
-  enableAsyncSubtreeAPI: true
-};
+  this.pendingProps = null;
+  this.memoizedProps = null;
+  this.updateQueue = null;
+  this.memoizedState = null;
 
-var ReactFeatureFlags_1 = ReactFeatureFlags;
+  this.internalContextTag = internalContextTag;
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactPriorityLevel
- * 
- */
+  // Effects
+  this.effectTag = NoEffect;
+  this.nextEffect = null;
 
-var ReactPriorityLevel = {
-  NoWork: 0, // No work is pending.
-  SynchronousPriority: 1, // For controlled text inputs. Synchronous side-effects.
-  TaskPriority: 2, // Completes at the end of the current tick.
-  HighPriority: 3, // Interaction that needs to complete pretty soon to feel responsive.
-  LowPriority: 4, // Data fetching, or result from updating stores.
-  OffscreenPriority: 5 };
+  this.firstEffect = null;
+  this.lastEffect = null;
 
-var CallbackEffect = ReactTypeOfSideEffect.Callback;
+  this.expirationTime = NoWork;
 
-var NoWork = ReactPriorityLevel.NoWork;
-var SynchronousPriority = ReactPriorityLevel.SynchronousPriority;
-var TaskPriority = ReactPriorityLevel.TaskPriority;
+  this.alternate = null;
 
-var ClassComponent$2 = ReactTypeOfWork.ClassComponent;
-var HostRoot$2 = ReactTypeOfWork.HostRoot;
+  {
+    this._debugID = debugCounter++;
+    this._debugSource = null;
+    this._debugOwner = null;
+    this._debugIsCurrentlyTiming = false;
+    if (!hasBadMapPolyfill && typeof Object.preventExtensions === 'function') {
+      Object.preventExtensions(this);
+    }
+  }
+}
 
+// This is a constructor function, rather than a POJO constructor, still
+// please ensure we do the following:
+// 1) Nobody should add any instance methods on this. Instance methods can be
+//    more difficult to predict when they get optimized and they are almost
+//    never inlined properly in static compilers.
+// 2) Nobody should rely on `instanceof Fiber` for type testing. We should
+//    always know when it is a fiber.
+// 3) We might want to experiment with using numeric keys since they are easier
+//    to optimize in a non-JIT environment.
+// 4) We can easily go from a constructor to a createFiber object literal if that
+//    is faster.
+// 5) It should be easy to port this to a C struct and keep a C implementation
+//    compatible.
+var createFiber = function (tag, key, internalContextTag) {
+  // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors
+  return new FiberNode(tag, key, internalContextTag);
+};
 
-{
-  var warning$19 = require$$0;
+function shouldConstruct(Component) {
+  return !!(Component.prototype && Component.prototype.isReactComponent);
 }
 
-// Callbacks are not validated until invocation
+// This is used to create an alternate fiber to do work on.
+function createWorkInProgress(current, pendingProps, expirationTime) {
+  var workInProgress = current.alternate;
+  if (workInProgress === null) {
+    // We use a double buffering pooling technique because we know that we'll
+    // only ever need at most two versions of a tree. We pool the "other" unused
+    // node that we're free to reuse. This is lazily created to avoid allocating
+    // extra objects for things that are never updated. It also allow us to
+    // reclaim the extra memory if needed.
+    workInProgress = createFiber(current.tag, current.key, current.internalContextTag);
+    workInProgress.type = current.type;
+    workInProgress.stateNode = current.stateNode;
 
+    {
+      // DEV-only fields
+      workInProgress._debugID = current._debugID;
+      workInProgress._debugSource = current._debugSource;
+      workInProgress._debugOwner = current._debugOwner;
+    }
 
-// Singly linked-list of updates. When an update is scheduled, it is added to
-// the queue of the current fiber and the work-in-progress fiber. The two queues
-// are separate but they share a persistent structure.
-//
-// During reconciliation, updates are removed from the work-in-progress fiber,
-// but they remain on the current fiber. That ensures that if a work-in-progress
-// is aborted, the aborted updates are recovered by cloning from current.
-//
-// The work-in-progress queue is always a subset of the current queue.
-//
-// When the tree is committed, the work-in-progress becomes the current.
+    workInProgress.alternate = current;
+    current.alternate = workInProgress;
+  } else {
+    // We already have an alternate.
+    // Reset the effect tag.
+    workInProgress.effectTag = NoEffect;
 
+    // The effect list is no longer valid.
+    workInProgress.nextEffect = null;
+    workInProgress.firstEffect = null;
+    workInProgress.lastEffect = null;
+  }
 
-var _queue1 = void 0;
-var _queue2 = void 0;
+  workInProgress.expirationTime = expirationTime;
+  workInProgress.pendingProps = pendingProps;
 
-function comparePriority(a, b) {
-  // When comparing update priorities, treat sync and Task work as equal.
-  // TODO: Could we avoid the need for this by always coercing sync priority
-  // to Task when scheduling an update?
-  if ((a === TaskPriority || a === SynchronousPriority) && (b === TaskPriority || b === SynchronousPriority)) {
-    return 0;
-  }
-  if (a === NoWork && b !== NoWork) {
-    return -255;
-  }
-  if (a !== NoWork && b === NoWork) {
-    return 255;
-  }
-  return a - b;
-}
+  workInProgress.child = current.child;
+  workInProgress.memoizedProps = current.memoizedProps;
+  workInProgress.memoizedState = current.memoizedState;
+  workInProgress.updateQueue = current.updateQueue;
 
-function createUpdateQueue() {
-  var queue = {
-    first: null,
-    last: null,
-    hasForceUpdate: false,
-    callbackList: null
-  };
-  {
-    queue.isProcessing = false;
-  }
-  return queue;
+  // These will be overridden during the parent's reconciliation
+  workInProgress.sibling = current.sibling;
+  workInProgress.index = current.index;
+  workInProgress.ref = current.ref;
+
+  return workInProgress;
 }
 
-function cloneUpdate(update) {
-  return {
-    priorityLevel: update.priorityLevel,
-    partialState: update.partialState,
-    callback: update.callback,
-    isReplace: update.isReplace,
-    isForced: update.isForced,
-    isTopLevelUnmount: update.isTopLevelUnmount,
-    next: null
-  };
+function createHostRootFiber() {
+  var fiber = createFiber(HostRoot, null, NoContext);
+  return fiber;
 }
 
-function insertUpdateIntoQueue(queue, update, insertAfter, insertBefore) {
-  if (insertAfter !== null) {
-    insertAfter.next = update;
-  } else {
-    // This is the first item in the queue.
-    update.next = queue.first;
-    queue.first = update;
+function createFiberFromElement(element, internalContextTag, expirationTime) {
+  var owner = null;
+  {
+    owner = element._owner;
   }
 
-  if (insertBefore !== null) {
-    update.next = insertBefore;
-  } else {
-    // This is the last item in the queue.
-    queue.last = update;
-  }
-}
+  var fiber = void 0;
+  var type = element.type,
+      key = element.key;
 
-// Returns the update after which the incoming update should be inserted into
-// the queue, or null if it should be inserted at beginning.
-function findInsertionPosition(queue, update) {
-  var priorityLevel = update.priorityLevel;
-  var insertAfter = null;
-  var insertBefore = null;
-  if (queue.last !== null && comparePriority(queue.last.priorityLevel, priorityLevel) <= 0) {
-    // Fast path for the common case where the update should be inserted at
-    // the end of the queue.
-    insertAfter = queue.last;
+  if (typeof type === 'function') {
+    fiber = shouldConstruct(type) ? createFiber(ClassComponent, key, internalContextTag) : createFiber(IndeterminateComponent, key, internalContextTag);
+    fiber.type = type;
+    fiber.pendingProps = element.props;
+  } else if (typeof type === 'string') {
+    fiber = createFiber(HostComponent, key, internalContextTag);
+    fiber.type = type;
+    fiber.pendingProps = element.props;
+  } else if (typeof type === 'object' && type !== null && typeof type.tag === 'number') {
+    // Currently assumed to be a continuation and therefore is a fiber already.
+    // TODO: The yield system is currently broken for updates in some cases.
+    // The reified yield stores a fiber, but we don't know which fiber that is;
+    // the current or a workInProgress? When the continuation gets rendered here
+    // we don't know if we can reuse that fiber or if we need to clone it.
+    // There is probably a clever way to restructure this.
+    fiber = type;
+    fiber.pendingProps = element.props;
   } else {
-    insertBefore = queue.first;
-    while (insertBefore !== null && comparePriority(insertBefore.priorityLevel, priorityLevel) <= 0) {
-      insertAfter = insertBefore;
-      insertBefore = insertBefore.next;
+    var info = '';
+    {
+      if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
+        info += ' You likely forgot to export your component from the file ' + "it's defined in, or you might have mixed up default and named imports.";
+      }
+      var ownerName = owner ? getComponentName(owner) : null;
+      if (ownerName) {
+        info += '\n\nCheck the render method of `' + ownerName + '`.';
+      }
     }
+    invariant(false, 'Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: %s.%s', type == null ? type : typeof type, info);
   }
-  return insertAfter;
-}
-
-function ensureUpdateQueues(fiber) {
-  var alternateFiber = fiber.alternate;
 
-  var queue1 = fiber.updateQueue;
-  if (queue1 === null) {
-    queue1 = fiber.updateQueue = createUpdateQueue();
+  {
+    fiber._debugSource = element._source;
+    fiber._debugOwner = element._owner;
   }
 
-  var queue2 = void 0;
-  if (alternateFiber !== null) {
-    queue2 = alternateFiber.updateQueue;
-    if (queue2 === null) {
-      queue2 = alternateFiber.updateQueue = createUpdateQueue();
-    }
-  } else {
-    queue2 = null;
-  }
+  fiber.expirationTime = expirationTime;
 
-  _queue1 = queue1;
-  // Return null if there is no alternate queue, or if its queue is the same.
-  _queue2 = queue2 !== queue1 ? queue2 : null;
+  return fiber;
 }
 
-// The work-in-progress queue is a subset of the current queue (if it exists).
-// We need to insert the incoming update into both lists. However, it's possible
-// that the correct position in one list will be different from the position in
-// the other. Consider the following case:
-//
-//     Current:             3-5-6
-//     Work-in-progress:        6
-//
-// Then we receive an update with priority 4 and insert it into each list:
-//
-//     Current:             3-4-5-6
-//     Work-in-progress:        4-6
-//
-// In the current queue, the new update's `next` pointer points to the update
-// with priority 5. But in the work-in-progress queue, the pointer points to the
-// update with priority 6. Because these two queues share the same persistent
-// data structure, this won't do. (This can only happen when the incoming update
-// has higher priority than all the updates in the work-in-progress queue.)
-//
-// To solve this, in the case where the incoming update needs to be inserted
-// into two different positions, we'll make a clone of the update and insert
-// each copy into a separate queue. This forks the list while maintaining a
-// persistent structure, because the update that is added to the work-in-progress
-// is always added to the front of the list.
-//
-// However, if incoming update is inserted into the same position of both lists,
-// we shouldn't make a copy.
-//
-// If the update is cloned, it returns the cloned update.
-function insertUpdate(fiber, update) {
-  // We'll have at least one and at most two distinct update queues.
-  ensureUpdateQueues(fiber);
-  var queue1 = _queue1;
-  var queue2 = _queue2;
+function createFiberFromFragment(elements, internalContextTag, expirationTime, key) {
+  var fiber = createFiber(Fragment, key, internalContextTag);
+  fiber.pendingProps = elements;
+  fiber.expirationTime = expirationTime;
+  return fiber;
+}
 
-  // Warn if an update is scheduled from inside an updater function.
-  {
-    if (queue1.isProcessing || queue2 !== null && queue2.isProcessing) {
-      warning$19(false, 'An update (setState, replaceState, or forceUpdate) was scheduled ' + 'from inside an update function. Update functions should be pure, ' + 'with zero side-effects. Consider using componentDidUpdate or a ' + 'callback.');
-    }
-  }
-
-  // Find the insertion position in the first queue.
-  var insertAfter1 = findInsertionPosition(queue1, update);
-  var insertBefore1 = insertAfter1 !== null ? insertAfter1.next : queue1.first;
+function createFiberFromText(content, internalContextTag, expirationTime) {
+  var fiber = createFiber(HostText, null, internalContextTag);
+  fiber.pendingProps = content;
+  fiber.expirationTime = expirationTime;
+  return fiber;
+}
 
-  if (queue2 === null) {
-    // If there's no alternate queue, there's nothing else to do but insert.
-    insertUpdateIntoQueue(queue1, update, insertAfter1, insertBefore1);
-    return null;
-  }
+function createFiberFromHostInstanceForDeletion() {
+  var fiber = createFiber(HostComponent, null, NoContext);
+  fiber.type = 'DELETED';
+  return fiber;
+}
 
-  // If there is an alternate queue, find the insertion position.
-  var insertAfter2 = findInsertionPosition(queue2, update);
-  var insertBefore2 = insertAfter2 !== null ? insertAfter2.next : queue2.first;
+function createFiberFromCall(call, internalContextTag, expirationTime) {
+  var fiber = createFiber(CallComponent, call.key, internalContextTag);
+  fiber.type = call.handler;
+  fiber.pendingProps = call;
+  fiber.expirationTime = expirationTime;
+  return fiber;
+}
 
-  // Now we can insert into the first queue. This must come after finding both
-  // insertion positions because it mutates the list.
-  insertUpdateIntoQueue(queue1, update, insertAfter1, insertBefore1);
+function createFiberFromReturn(returnNode, internalContextTag, expirationTime) {
+  var fiber = createFiber(ReturnComponent, null, internalContextTag);
+  fiber.expirationTime = expirationTime;
+  return fiber;
+}
 
-  // See if the insertion positions are equal. Be careful to only compare
-  // non-null values.
-  if (insertBefore1 === insertBefore2 && insertBefore1 !== null || insertAfter1 === insertAfter2 && insertAfter1 !== null) {
-    // The insertion positions are the same, so when we inserted into the first
-    // queue, it also inserted into the alternate. All we need to do is update
-    // the alternate queue's `first` and `last` pointers, in case they
-    // have changed.
-    if (insertAfter2 === null) {
-      queue2.first = update;
-    }
-    if (insertBefore2 === null) {
-      queue2.last = null;
-    }
-    return null;
-  } else {
-    // The insertion positions are different, so we need to clone the update and
-    // insert the clone into the alternate queue.
-    var update2 = cloneUpdate(update);
-    insertUpdateIntoQueue(queue2, update2, insertAfter2, insertBefore2);
-    return update2;
-  }
-}
-
-function addUpdate(fiber, partialState, callback, priorityLevel) {
-  var update = {
-    priorityLevel: priorityLevel,
-    partialState: partialState,
-    callback: callback,
-    isReplace: false,
-    isForced: false,
-    isTopLevelUnmount: false,
-    next: null
+function createFiberFromPortal(portal, internalContextTag, expirationTime) {
+  var fiber = createFiber(HostPortal, portal.key, internalContextTag);
+  fiber.pendingProps = portal.children || [];
+  fiber.expirationTime = expirationTime;
+  fiber.stateNode = {
+    containerInfo: portal.containerInfo,
+    pendingChildren: null, // Used by persistent updates
+    implementation: portal.implementation
   };
-  insertUpdate(fiber, update);
-}
-var addUpdate_1 = addUpdate;
-
-function addReplaceUpdate(fiber, state, callback, priorityLevel) {
-  var update = {
-    priorityLevel: priorityLevel,
-    partialState: state,
-    callback: callback,
-    isReplace: true,
-    isForced: false,
-    isTopLevelUnmount: false,
-    next: null
+  return fiber;
+}
+
+function createFiberRoot(containerInfo, hydrate) {
+  // Cyclic construction. This cheats the type system right now because
+  // stateNode is any.
+  var uninitializedFiber = createHostRootFiber();
+  var root = {
+    current: uninitializedFiber,
+    containerInfo: containerInfo,
+    pendingChildren: null,
+    remainingExpirationTime: NoWork,
+    isReadyForCommit: false,
+    finishedWork: null,
+    context: null,
+    pendingContext: null,
+    hydrate: hydrate,
+    nextScheduledRoot: null
   };
-  insertUpdate(fiber, update);
-}
-var addReplaceUpdate_1 = addReplaceUpdate;
-
-function addForceUpdate(fiber, callback, priorityLevel) {
-  var update = {
-    priorityLevel: priorityLevel,
-    partialState: null,
-    callback: callback,
-    isReplace: false,
-    isForced: true,
-    isTopLevelUnmount: false,
-    next: null
+  uninitializedFiber.stateNode = root;
+  return root;
+}
+
+var onCommitFiberRoot = null;
+var onCommitFiberUnmount = null;
+var hasLoggedError = false;
+
+function catchErrors(fn) {
+  return function (arg) {
+    try {
+      return fn(arg);
+    } catch (err) {
+      if (true && !hasLoggedError) {
+        hasLoggedError = true;
+        warning(false, 'React DevTools encountered an error: %s', err);
+      }
+    }
   };
-  insertUpdate(fiber, update);
 }
-var addForceUpdate_1 = addForceUpdate;
 
-function getUpdatePriority(fiber) {
-  var updateQueue = fiber.updateQueue;
-  if (updateQueue === null) {
-    return NoWork;
+function injectInternals(internals) {
+  if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined') {
+    // No DevTools
+    return false;
   }
-  if (fiber.tag !== ClassComponent$2 && fiber.tag !== HostRoot$2) {
-    return NoWork;
+  var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__;
+  if (hook.isDisabled) {
+    // This isn't a real property on the hook, but it can be set to opt out
+    // of DevTools integration and associated warnings and logs.
+    // https://github.com/facebook/react/issues/3877
+    return true;
+  }
+  if (!hook.supportsFiber) {
+    {
+      warning(false, 'The installed version of React DevTools is too old and will not work ' + 'with the current version of React. Please update React DevTools. ' + 'https://fb.me/react-devtools');
+    }
+    // DevTools exists, even though it doesn't support Fiber.
+    return true;
+  }
+  try {
+    var rendererID = hook.inject(internals);
+    // We have successfully injected, so now it is safe to set up hooks.
+    onCommitFiberRoot = catchErrors(function (root) {
+      return hook.onCommitFiberRoot(rendererID, root);
+    });
+    onCommitFiberUnmount = catchErrors(function (fiber) {
+      return hook.onCommitFiberUnmount(rendererID, fiber);
+    });
+  } catch (err) {
+    // Catch all errors because it is unsafe to throw during initialization.
+    {
+      warning(false, 'React DevTools encountered an error: %s.', err);
+    }
+  }
+  // DevTools exists
+  return true;
+}
+
+function onCommitRoot(root) {
+  if (typeof onCommitFiberRoot === 'function') {
+    onCommitFiberRoot(root);
+  }
+}
+
+function onCommitUnmount(fiber) {
+  if (typeof onCommitFiberUnmount === 'function') {
+    onCommitFiberUnmount(fiber);
   }
-  return updateQueue.first !== null ? updateQueue.first.priorityLevel : NoWork;
 }
-var getUpdatePriority_1 = getUpdatePriority;
 
-function addTopLevelUpdate$1(fiber, partialState, callback, priorityLevel) {
-  var isTopLevelUnmount = partialState.element === null;
+{
+  var didWarnUpdateInsideUpdate = false;
+}
+
+// Callbacks are not validated until invocation
+
+
+// Singly linked-list of updates. When an update is scheduled, it is added to
+// the queue of the current fiber and the work-in-progress fiber. The two queues
+// are separate but they share a persistent structure.
+//
+// During reconciliation, updates are removed from the work-in-progress fiber,
+// but they remain on the current fiber. That ensures that if a work-in-progress
+// is aborted, the aborted updates are recovered by cloning from current.
+//
+// The work-in-progress queue is always a subset of the current queue.
+//
+// When the tree is committed, the work-in-progress becomes the current.
+
 
-  var update = {
-    priorityLevel: priorityLevel,
-    partialState: partialState,
-    callback: callback,
-    isReplace: false,
-    isForced: false,
-    isTopLevelUnmount: isTopLevelUnmount,
-    next: null
+function createUpdateQueue(baseState) {
+  var queue = {
+    baseState: baseState,
+    expirationTime: NoWork,
+    first: null,
+    last: null,
+    callbackList: null,
+    hasForceUpdate: false,
+    isInitialized: false
   };
-  var update2 = insertUpdate(fiber, update);
+  {
+    queue.isProcessing = false;
+  }
+  return queue;
+}
+
+function insertUpdateIntoQueue(queue, update) {
+  // Append the update to the end of the list.
+  if (queue.last === null) {
+    // Queue is empty
+    queue.first = queue.last = update;
+  } else {
+    queue.last.next = update;
+    queue.last = update;
+  }
+  if (queue.expirationTime === NoWork || queue.expirationTime > update.expirationTime) {
+    queue.expirationTime = update.expirationTime;
+  }
+}
 
-  if (isTopLevelUnmount) {
-    // TODO: Redesign the top-level mount/update/unmount API to avoid this
-    // special case.
-    var queue1 = _queue1;
-    var queue2 = _queue2;
+function insertUpdateIntoFiber(fiber, update) {
+  // We'll have at least one and at most two distinct update queues.
+  var alternateFiber = fiber.alternate;
+  var queue1 = fiber.updateQueue;
+  if (queue1 === null) {
+    // TODO: We don't know what the base state will be until we begin work.
+    // It depends on which fiber is the next current. Initialize with an empty
+    // base state, then set to the memoizedState when rendering. Not super
+    // happy with this approach.
+    queue1 = fiber.updateQueue = createUpdateQueue(null);
+  }
 
-    // Drop all updates that are lower-priority, so that the tree is not
-    // remounted. We need to do this for both queues.
-    if (queue1 !== null && update.next !== null) {
-      update.next = null;
-      queue1.last = update;
+  var queue2 = void 0;
+  if (alternateFiber !== null) {
+    queue2 = alternateFiber.updateQueue;
+    if (queue2 === null) {
+      queue2 = alternateFiber.updateQueue = createUpdateQueue(null);
     }
-    if (queue2 !== null && update2 !== null && update2.next !== null) {
-      update2.next = null;
-      queue2.last = update;
+  } else {
+    queue2 = null;
+  }
+  queue2 = queue2 !== queue1 ? queue2 : null;
+
+  // Warn if an update is scheduled from inside an updater function.
+  {
+    if ((queue1.isProcessing || queue2 !== null && queue2.isProcessing) && !didWarnUpdateInsideUpdate) {
+      warning(false, 'An update (setState, replaceState, or forceUpdate) was scheduled ' + 'from inside an update function. Update functions should be pure, ' + 'with zero side-effects. Consider using componentDidUpdate or a ' + 'callback.');
+      didWarnUpdateInsideUpdate = true;
     }
   }
+
+  // If there's only one queue, add the update to that queue and exit.
+  if (queue2 === null) {
+    insertUpdateIntoQueue(queue1, update);
+    return;
+  }
+
+  // If either queue is empty, we need to add to both queues.
+  if (queue1.last === null || queue2.last === null) {
+    insertUpdateIntoQueue(queue1, update);
+    insertUpdateIntoQueue(queue2, update);
+    return;
+  }
+
+  // If both lists are not empty, the last update is the same for both lists
+  // because of structural sharing. So, we should only append to one of
+  // the lists.
+  insertUpdateIntoQueue(queue1, update);
+  // But we still need to update the `last` pointer of queue2.
+  queue2.last = update;
+}
+
+function getUpdateExpirationTime(fiber) {
+  if (fiber.tag !== ClassComponent && fiber.tag !== HostRoot) {
+    return NoWork;
+  }
+  var updateQueue = fiber.updateQueue;
+  if (updateQueue === null) {
+    return NoWork;
+  }
+  return updateQueue.expirationTime;
 }
-var addTopLevelUpdate_1 = addTopLevelUpdate$1;
 
 function getStateFromUpdate(update, instance, prevState, props) {
   var partialState = update.partialState;
   if (typeof partialState === 'function') {
     var updateFn = partialState;
+
+    // Invoke setState callback an extra time to help detect side-effects.
+    if (debugRenderPhaseSideEffects) {
+      updateFn.call(instance, prevState, props);
+    }
+
     return updateFn.call(instance, prevState, props);
   } else {
     return partialState;
   }
 }
 
-function beginUpdateQueue(current, workInProgress, queue, instance, prevState, props, priorityLevel) {
+function processUpdateQueue(current, workInProgress, queue, instance, props, renderExpirationTime) {
   if (current !== null && current.updateQueue === queue) {
     // We need to create a work-in-progress queue, by cloning the current queue.
     var currentQueue = queue;
     queue = workInProgress.updateQueue = {
+      baseState: currentQueue.baseState,
+      expirationTime: currentQueue.expirationTime,
       first: currentQueue.first,
       last: currentQueue.last,
+      isInitialized: currentQueue.isInitialized,
       // These fields are no longer valid because they were already committed.
       // Reset them.
       callbackList: null,
@@ -11507,24 +10015,54 @@ function beginUpdateQueue(current, workInProgress, queue, instance, prevState, p
     queue.isProcessing = true;
   }
 
-  // Calculate these using the the existing values as a base.
-  var callbackList = queue.callbackList;
-  var hasForceUpdate = queue.hasForceUpdate;
+  // Reset the remaining expiration time. If we skip over any updates, we'll
+  // increase this accordingly.
+  queue.expirationTime = NoWork;
 
-  // Applies updates with matching priority to the previous state to create
-  // a new state object.
-  var state = prevState;
+  // TODO: We don't know what the base state will be until we begin work.
+  // It depends on which fiber is the next current. Initialize with an empty
+  // base state, then set to the memoizedState when rendering. Not super
+  // happy with this approach.
+  var state = void 0;
+  if (queue.isInitialized) {
+    state = queue.baseState;
+  } else {
+    state = queue.baseState = workInProgress.memoizedState;
+    queue.isInitialized = true;
+  }
   var dontMutatePrevState = true;
   var update = queue.first;
-  while (update !== null && comparePriority(update.priorityLevel, priorityLevel) <= 0) {
-    // Remove each update from the queue right before it is processed. That way
-    // if setState is called from inside an updater function, the new update
-    // will be inserted in the correct position.
-    queue.first = update.next;
-    if (queue.first === null) {
-      queue.last = null;
+  var didSkip = false;
+  while (update !== null) {
+    var updateExpirationTime = update.expirationTime;
+    if (updateExpirationTime > renderExpirationTime) {
+      // This update does not have sufficient priority. Skip it.
+      var remainingExpirationTime = queue.expirationTime;
+      if (remainingExpirationTime === NoWork || remainingExpirationTime > updateExpirationTime) {
+        // Update the remaining expiration time.
+        queue.expirationTime = updateExpirationTime;
+      }
+      if (!didSkip) {
+        didSkip = true;
+        queue.baseState = state;
+      }
+      // Continue to the next update.
+      update = update.next;
+      continue;
+    }
+
+    // This update does have sufficient priority.
+
+    // If no previous updates were skipped, drop this update from the queue by
+    // advancing the head of the list.
+    if (!didSkip) {
+      queue.first = update.next;
+      if (queue.first === null) {
+        queue.last = null;
+      }
     }
 
+    // Process the update
     var _partialState = void 0;
     if (update.isReplace) {
       state = getStateFromUpdate(update, instance, state, props);
@@ -11533,6 +10071,7 @@ function beginUpdateQueue(current, workInProgress, queue, instance, prevState, p
       _partialState = getStateFromUpdate(update, instance, state, props);
       if (_partialState) {
         if (dontMutatePrevState) {
+          // $FlowFixMe: Idk how to type this properly.
           state = _assign({}, state, _partialState);
         } else {
           state = _assign(state, _partialState);
@@ -11541,26 +10080,31 @@ function beginUpdateQueue(current, workInProgress, queue, instance, prevState, p
       }
     }
     if (update.isForced) {
-      hasForceUpdate = true;
+      queue.hasForceUpdate = true;
     }
-    // Second condition ignores top-level unmount callbacks if they are not the
-    // last update in the queue, since a subsequent update will cause a remount.
-    if (update.callback !== null && !(update.isTopLevelUnmount && update.next !== null)) {
-      callbackList = callbackList !== null ? callbackList : [];
-      callbackList.push(update.callback);
-      workInProgress.effectTag |= CallbackEffect;
+    if (update.callback !== null) {
+      // Append to list of callbacks.
+      var _callbackList = queue.callbackList;
+      if (_callbackList === null) {
+        _callbackList = queue.callbackList = [];
+      }
+      _callbackList.push(update);
     }
     update = update.next;
   }
 
-  queue.callbackList = callbackList;
-  queue.hasForceUpdate = hasForceUpdate;
-
-  if (queue.first === null && callbackList === null && !hasForceUpdate) {
-    // The queue is empty and there are no callbacks. We can reset it.
+  if (queue.callbackList !== null) {
+    workInProgress.effectTag |= Callback;
+  } else if (queue.first === null && !queue.hasForceUpdate) {
+    // The queue is empty. We can reset it.
     workInProgress.updateQueue = null;
   }
 
+  if (!didSkip) {
+    didSkip = true;
+    queue.baseState = state;
+  }
+
   {
     // No longer processing.
     queue.isProcessing = false;
@@ -11568,1715 +10112,1517 @@ function beginUpdateQueue(current, workInProgress, queue, instance, prevState, p
 
   return state;
 }
-var beginUpdateQueue_1 = beginUpdateQueue;
 
-function commitCallbacks(finishedWork, queue, context) {
+function commitCallbacks(queue, context) {
   var callbackList = queue.callbackList;
   if (callbackList === null) {
     return;
   }
-
   // Set the list to null to make sure they don't get called more than once.
   queue.callbackList = null;
-
   for (var i = 0; i < callbackList.length; i++) {
-    var _callback = callbackList[i];
+    var update = callbackList[i];
+    var _callback = update.callback;
+    // This update might be processed again. Clear the callback so it's only
+    // called once.
+    update.callback = null;
     !(typeof _callback === 'function') ? invariant(false, 'Invalid argument passed as callback. Expected a function. Instead received: %s', _callback) : void 0;
     _callback.call(context);
   }
 }
-var commitCallbacks_1 = commitCallbacks;
 
-var ReactFiberUpdateQueue = {
-	addUpdate: addUpdate_1,
-	addReplaceUpdate: addReplaceUpdate_1,
-	addForceUpdate: addForceUpdate_1,
-	getUpdatePriority: getUpdatePriority_1,
-	addTopLevelUpdate: addTopLevelUpdate_1,
-	beginUpdateQueue: beginUpdateQueue_1,
-	commitCallbacks: commitCallbacks_1
-};
+var fakeInternalInstance = {};
+var isArray = Array.isArray;
 
 {
-  var warning$21 = require$$0;
-}
+  var didWarnAboutStateAssignmentForComponent = {};
 
-var valueStack = [];
+  var warnOnInvalidCallback = function (callback, callerName) {
+    warning(callback === null || typeof callback === 'function', '%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback);
+  };
 
-{
-  var fiberStack = [];
+  // This is so gross but it's at least non-critical and can be removed if
+  // it causes problems. This is meant to give a nicer error message for
+  // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component,
+  // ...)) which otherwise throws a "_processChildContext is not a function"
+  // exception.
+  Object.defineProperty(fakeInternalInstance, '_processChildContext', {
+    enumerable: false,
+    value: function () {
+      invariant(false, '_processChildContext is not available in React 16+. This likely means you have multiple copies of React and are attempting to nest a React 15 tree inside a React 16 tree using unstable_renderSubtreeIntoContainer, which isn\'t supported. Try to make sure you have only one copy of React (and ideally, switch to ReactDOM.createPortal).');
+    }
+  });
+  Object.freeze(fakeInternalInstance);
 }
 
-var index = -1;
-
-var createCursor$1 = function (defaultValue) {
-  return {
-    current: defaultValue
+var ReactFiberClassComponent = function (scheduleWork, computeExpirationForFiber, memoizeProps, memoizeState) {
+  // Class component state updater
+  var updater = {
+    isMounted: isMounted,
+    enqueueSetState: function (instance, partialState, callback) {
+      var fiber = get(instance);
+      callback = callback === undefined ? null : callback;
+      {
+        warnOnInvalidCallback(callback, 'setState');
+      }
+      var expirationTime = computeExpirationForFiber(fiber);
+      var update = {
+        expirationTime: expirationTime,
+        partialState: partialState,
+        callback: callback,
+        isReplace: false,
+        isForced: false,
+        nextCallback: null,
+        next: null
+      };
+      insertUpdateIntoFiber(fiber, update);
+      scheduleWork(fiber, expirationTime);
+    },
+    enqueueReplaceState: function (instance, state, callback) {
+      var fiber = get(instance);
+      callback = callback === undefined ? null : callback;
+      {
+        warnOnInvalidCallback(callback, 'replaceState');
+      }
+      var expirationTime = computeExpirationForFiber(fiber);
+      var update = {
+        expirationTime: expirationTime,
+        partialState: state,
+        callback: callback,
+        isReplace: true,
+        isForced: false,
+        nextCallback: null,
+        next: null
+      };
+      insertUpdateIntoFiber(fiber, update);
+      scheduleWork(fiber, expirationTime);
+    },
+    enqueueForceUpdate: function (instance, callback) {
+      var fiber = get(instance);
+      callback = callback === undefined ? null : callback;
+      {
+        warnOnInvalidCallback(callback, 'forceUpdate');
+      }
+      var expirationTime = computeExpirationForFiber(fiber);
+      var update = {
+        expirationTime: expirationTime,
+        partialState: null,
+        callback: callback,
+        isReplace: false,
+        isForced: true,
+        nextCallback: null,
+        next: null
+      };
+      insertUpdateIntoFiber(fiber, update);
+      scheduleWork(fiber, expirationTime);
+    }
   };
-};
-
-var isEmpty = function () {
-  return index === -1;
-};
 
-var pop$1 = function (cursor, fiber) {
-  if (index < 0) {
-    {
-      warning$21(false, 'Unexpected pop.');
+  function checkShouldComponentUpdate(workInProgress, oldProps, newProps, oldState, newState, newContext) {
+    if (oldProps === null || workInProgress.updateQueue !== null && workInProgress.updateQueue.hasForceUpdate) {
+      // If the workInProgress already has an Update effect, return true
+      return true;
     }
-    return;
-  }
 
-  {
-    if (fiber !== fiberStack[index]) {
-      warning$21(false, 'Unexpected Fiber popped.');
-    }
-  }
+    var instance = workInProgress.stateNode;
+    var type = workInProgress.type;
+    if (typeof instance.shouldComponentUpdate === 'function') {
+      startPhaseTimer(workInProgress, 'shouldComponentUpdate');
+      var shouldUpdate = instance.shouldComponentUpdate(newProps, newState, newContext);
+      stopPhaseTimer();
 
-  cursor.current = valueStack[index];
+      // Simulate an async bailout/interruption by invoking lifecycle twice.
+      if (debugRenderPhaseSideEffects) {
+        instance.shouldComponentUpdate(newProps, newState, newContext);
+      }
 
-  valueStack[index] = null;
+      {
+        warning(shouldUpdate !== undefined, '%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', getComponentName(workInProgress) || 'Unknown');
+      }
 
-  {
-    fiberStack[index] = null;
-  }
+      return shouldUpdate;
+    }
 
-  index--;
-};
+    if (type.prototype && type.prototype.isPureReactComponent) {
+      return !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState);
+    }
 
-var push$1 = function (cursor, value, fiber) {
-  index++;
-
-  valueStack[index] = cursor.current;
-
-  {
-    fiberStack[index] = fiber;
+    return true;
   }
 
-  cursor.current = value;
-};
+  function checkClassInstance(workInProgress) {
+    var instance = workInProgress.stateNode;
+    var type = workInProgress.type;
+    {
+      var name = getComponentName(workInProgress);
+      var renderPresent = instance.render;
 
-var reset = function () {
-  while (index > -1) {
-    valueStack[index] = null;
+      if (!renderPresent) {
+        if (type.prototype && typeof type.prototype.render === 'function') {
+          warning(false, '%s(...): No `render` method found on the returned component ' + 'instance: did you accidentally return an object from the constructor?', name);
+        } else {
+          warning(false, '%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', name);
+        }
+      }
 
-    {
-      fiberStack[index] = null;
+      var noGetInitialStateOnES6 = !instance.getInitialState || instance.getInitialState.isReactClassApproved || instance.state;
+      warning(noGetInitialStateOnES6, 'getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', name);
+      var noGetDefaultPropsOnES6 = !instance.getDefaultProps || instance.getDefaultProps.isReactClassApproved;
+      warning(noGetDefaultPropsOnES6, 'getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', name);
+      var noInstancePropTypes = !instance.propTypes;
+      warning(noInstancePropTypes, 'propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', name);
+      var noInstanceContextTypes = !instance.contextTypes;
+      warning(noInstanceContextTypes, 'contextTypes was defined as an instance property on %s. Use a static ' + 'property to define contextTypes instead.', name);
+      var noComponentShouldUpdate = typeof instance.componentShouldUpdate !== 'function';
+      warning(noComponentShouldUpdate, '%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', name);
+      if (type.prototype && type.prototype.isPureReactComponent && typeof instance.shouldComponentUpdate !== 'undefined') {
+        warning(false, '%s has a method called shouldComponentUpdate(). ' + 'shouldComponentUpdate should not be used when extending React.PureComponent. ' + 'Please extend React.Component if shouldComponentUpdate is used.', getComponentName(workInProgress) || 'A pure component');
+      }
+      var noComponentDidUnmount = typeof instance.componentDidUnmount !== 'function';
+      warning(noComponentDidUnmount, '%s has a method called ' + 'componentDidUnmount(). But there is no such lifecycle method. ' + 'Did you mean componentWillUnmount()?', name);
+      var noComponentDidReceiveProps = typeof instance.componentDidReceiveProps !== 'function';
+      warning(noComponentDidReceiveProps, '%s has a method called ' + 'componentDidReceiveProps(). But there is no such lifecycle method. ' + 'If you meant to update the state in response to changing props, ' + 'use componentWillReceiveProps(). If you meant to fetch data or ' + 'run side-effects or mutations after React has updated the UI, use componentDidUpdate().', name);
+      var noComponentWillRecieveProps = typeof instance.componentWillRecieveProps !== 'function';
+      warning(noComponentWillRecieveProps, '%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', name);
+      var hasMutatedProps = instance.props !== workInProgress.pendingProps;
+      warning(instance.props === undefined || !hasMutatedProps, '%s(...): When calling super() in `%s`, make sure to pass ' + "up the same props that your component's constructor was passed.", name, name);
+      var noInstanceDefaultProps = !instance.defaultProps;
+      warning(noInstanceDefaultProps, 'Setting defaultProps as an instance property on %s is not supported and will be ignored.' + ' Instead, define defaultProps as a static property on %s.', name, name);
     }
 
-    index--;
+    var state = instance.state;
+    if (state && (typeof state !== 'object' || isArray(state))) {
+      warning(false, '%s.state: must be set to an object or null', getComponentName(workInProgress));
+    }
+    if (typeof instance.getChildContext === 'function') {
+      warning(typeof workInProgress.type.childContextTypes === 'object', '%s.getChildContext(): childContextTypes must be defined in order to ' + 'use getChildContext().', getComponentName(workInProgress));
+    }
   }
-};
-
-var ReactFiberStack = {
-	createCursor: createCursor$1,
-	isEmpty: isEmpty,
-	pop: pop$1,
-	push: push$1,
-	reset: reset
-};
-
-// Trust the developer to only use this with a true check
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactDebugFiberPerf
- * 
- */
 
-var ReactDebugFiberPerf = null;
-
-{
-  var _require$8 = ReactTypeOfWork,
-      HostRoot$4 = _require$8.HostRoot,
-      HostComponent$4 = _require$8.HostComponent,
-      HostText$2 = _require$8.HostText,
-      HostPortal$1 = _require$8.HostPortal,
-      YieldComponent = _require$8.YieldComponent,
-      Fragment = _require$8.Fragment;
-
-  var getComponentName$5 = getComponentName_1;
-
-  // Prefix measurements so that it's possible to filter them.
-  // Longer prefixes are hard to read in DevTools.
-  var reactEmoji = '\u269B';
-  var warningEmoji = '\u26D4';
-  var supportsUserTiming = typeof performance !== 'undefined' && typeof performance.mark === 'function' && typeof performance.clearMarks === 'function' && typeof performance.measure === 'function' && typeof performance.clearMeasures === 'function';
-
-  // Keep track of current fiber so that we know the path to unwind on pause.
-  // TODO: this looks the same as nextUnitOfWork in scheduler. Can we unify them?
-  var currentFiber = null;
-  // If we're in the middle of user code, which fiber and method is it?
-  // Reusing `currentFiber` would be confusing for this because user code fiber
-  // can change during commit phase too, but we don't need to unwind it (since
-  // lifecycles in the commit phase don't resemble a tree).
-  var currentPhase = null;
-  var currentPhaseFiber = null;
-  // Did lifecycle hook schedule an update? This is often a performance problem,
-  // so we will keep track of it, and include it in the report.
-  // Track commits caused by cascading updates.
-  var isCommitting = false;
-  var hasScheduledUpdateInCurrentCommit = false;
-  var hasScheduledUpdateInCurrentPhase = false;
-  var commitCountInCurrentWorkLoop = 0;
-  var effectCountInCurrentCommit = 0;
-  // During commits, we only show a measurement once per method name
-  // to avoid stretch the commit phase with measurement overhead.
-  var labelsInCurrentCommit = new Set();
-
-  var formatMarkName = function (markName) {
-    return reactEmoji + ' ' + markName;
-  };
-
-  var formatLabel = function (label, warning) {
-    var prefix = warning ? warningEmoji + ' ' : reactEmoji + ' ';
-    var suffix = warning ? ' Warning: ' + warning : '';
-    return '' + prefix + label + suffix;
-  };
-
-  var beginMark = function (markName) {
-    performance.mark(formatMarkName(markName));
-  };
-
-  var clearMark = function (markName) {
-    performance.clearMarks(formatMarkName(markName));
-  };
-
-  var endMark = function (label, markName, warning) {
-    var formattedMarkName = formatMarkName(markName);
-    var formattedLabel = formatLabel(label, warning);
-    try {
-      performance.measure(formattedLabel, formattedMarkName);
-    } catch (err) {}
-    // If previous mark was missing for some reason, this will throw.
-    // This could only happen if React crashed in an unexpected place earlier.
-    // Don't pile on with more errors.
-
-    // Clear marks immediately to avoid growing buffer.
-    performance.clearMarks(formattedMarkName);
-    performance.clearMeasures(formattedLabel);
-  };
-
-  var getFiberMarkName = function (label, debugID) {
-    return label + ' (#' + debugID + ')';
-  };
+  function resetInputPointers(workInProgress, instance) {
+    instance.props = workInProgress.memoizedProps;
+    instance.state = workInProgress.memoizedState;
+  }
 
-  var getFiberLabel = function (componentName, isMounted, phase) {
-    if (phase === null) {
-      // These are composite component total time measurements.
-      return componentName + ' [' + (isMounted ? 'update' : 'mount') + ']';
-    } else {
-      // Composite component methods.
-      return componentName + '.' + phase;
+  function adoptClassInstance(workInProgress, instance) {
+    instance.updater = updater;
+    workInProgress.stateNode = instance;
+    // The instance needs access to the fiber so that it can schedule updates
+    set(instance, workInProgress);
+    {
+      instance._reactInternalInstance = fakeInternalInstance;
     }
-  };
+  }
 
-  var beginFiberMark = function (fiber, phase) {
-    var componentName = getComponentName$5(fiber) || 'Unknown';
-    var debugID = fiber._debugID;
-    var isMounted = fiber.alternate !== null;
-    var label = getFiberLabel(componentName, isMounted, phase);
+  function constructClassInstance(workInProgress, props) {
+    var ctor = workInProgress.type;
+    var unmaskedContext = getUnmaskedContext(workInProgress);
+    var needsContext = isContextConsumer(workInProgress);
+    var context = needsContext ? getMaskedContext(workInProgress, unmaskedContext) : emptyObject;
+    var instance = new ctor(props, context);
+    adoptClassInstance(workInProgress, instance);
 
-    if (isCommitting && labelsInCurrentCommit.has(label)) {
-      // During the commit phase, we don't show duplicate labels because
-      // there is a fixed overhead for every measurement, and we don't
-      // want to stretch the commit phase beyond necessary.
-      return false;
+    // Cache unmasked context so we can avoid recreating masked context unless necessary.
+    // ReactFiberContext usually updates this cache but can't for newly-created instances.
+    if (needsContext) {
+      cacheContext(workInProgress, unmaskedContext, context);
     }
-    labelsInCurrentCommit.add(label);
-
-    var markName = getFiberMarkName(label, debugID);
-    beginMark(markName);
-    return true;
-  };
-
-  var clearFiberMark = function (fiber, phase) {
-    var componentName = getComponentName$5(fiber) || 'Unknown';
-    var debugID = fiber._debugID;
-    var isMounted = fiber.alternate !== null;
-    var label = getFiberLabel(componentName, isMounted, phase);
-    var markName = getFiberMarkName(label, debugID);
-    clearMark(markName);
-  };
 
-  var endFiberMark = function (fiber, phase, warning) {
-    var componentName = getComponentName$5(fiber) || 'Unknown';
-    var debugID = fiber._debugID;
-    var isMounted = fiber.alternate !== null;
-    var label = getFiberLabel(componentName, isMounted, phase);
-    var markName = getFiberMarkName(label, debugID);
-    endMark(label, markName, warning);
-  };
+    return instance;
+  }
 
-  var shouldIgnoreFiber = function (fiber) {
-    // Host components should be skipped in the timeline.
-    // We could check typeof fiber.type, but does this work with RN?
-    switch (fiber.tag) {
-      case HostRoot$4:
-      case HostComponent$4:
-      case HostText$2:
-      case HostPortal$1:
-      case YieldComponent:
-      case Fragment:
-        return true;
-      default:
-        return false;
-    }
-  };
+  function callComponentWillMount(workInProgress, instance) {
+    startPhaseTimer(workInProgress, 'componentWillMount');
+    var oldState = instance.state;
+    instance.componentWillMount();
+    stopPhaseTimer();
 
-  var clearPendingPhaseMeasurement = function () {
-    if (currentPhase !== null && currentPhaseFiber !== null) {
-      clearFiberMark(currentPhaseFiber, currentPhase);
+    // Simulate an async bailout/interruption by invoking lifecycle twice.
+    if (debugRenderPhaseSideEffects) {
+      instance.componentWillMount();
     }
-    currentPhaseFiber = null;
-    currentPhase = null;
-    hasScheduledUpdateInCurrentPhase = false;
-  };
 
-  var pauseTimers = function () {
-    // Stops all currently active measurements so that they can be resumed
-    // if we continue in a later deferred loop from the same unit of work.
-    var fiber = currentFiber;
-    while (fiber) {
-      if (fiber._debugIsCurrentlyTiming) {
-        endFiberMark(fiber, null, null);
+    if (oldState !== instance.state) {
+      {
+        warning(false, '%s.componentWillMount(): Assigning directly to this.state is ' + "deprecated (except inside a component's " + 'constructor). Use setState instead.', getComponentName(workInProgress));
       }
-      fiber = fiber['return'];
+      updater.enqueueReplaceState(instance, instance.state, null);
     }
-  };
+  }
 
-  var resumeTimersRecursively = function (fiber) {
-    if (fiber['return'] !== null) {
-      resumeTimersRecursively(fiber['return']);
-    }
-    if (fiber._debugIsCurrentlyTiming) {
-      beginFiberMark(fiber, null);
-    }
-  };
+  function callComponentWillReceiveProps(workInProgress, instance, newProps, newContext) {
+    startPhaseTimer(workInProgress, 'componentWillReceiveProps');
+    var oldState = instance.state;
+    instance.componentWillReceiveProps(newProps, newContext);
+    stopPhaseTimer();
 
-  var resumeTimers = function () {
-    // Resumes all measurements that were active during the last deferred loop.
-    if (currentFiber !== null) {
-      resumeTimersRecursively(currentFiber);
+    // Simulate an async bailout/interruption by invoking lifecycle twice.
+    if (debugRenderPhaseSideEffects) {
+      instance.componentWillReceiveProps(newProps, newContext);
     }
-  };
 
-  ReactDebugFiberPerf = {
-    recordEffect: function () {
-      effectCountInCurrentCommit++;
-    },
-    recordScheduleUpdate: function () {
-      if (isCommitting) {
-        hasScheduledUpdateInCurrentCommit = true;
-      }
-      if (currentPhase !== null && currentPhase !== 'componentWillMount' && currentPhase !== 'componentWillReceiveProps') {
-        hasScheduledUpdateInCurrentPhase = true;
-      }
-    },
-    startWorkTimer: function (fiber) {
-      if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
-        return;
-      }
-      // If we pause, this is the fiber to unwind from.
-      currentFiber = fiber;
-      if (!beginFiberMark(fiber, null)) {
-        return;
-      }
-      fiber._debugIsCurrentlyTiming = true;
-    },
-    cancelWorkTimer: function (fiber) {
-      if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
-        return;
-      }
-      // Remember we shouldn't complete measurement for this fiber.
-      // Otherwise flamechart will be deep even for small updates.
-      fiber._debugIsCurrentlyTiming = false;
-      clearFiberMark(fiber, null);
-    },
-    stopWorkTimer: function (fiber) {
-      if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
-        return;
-      }
-      // If we pause, its parent is the fiber to unwind from.
-      currentFiber = fiber['return'];
-      if (!fiber._debugIsCurrentlyTiming) {
-        return;
-      }
-      fiber._debugIsCurrentlyTiming = false;
-      endFiberMark(fiber, null, null);
-    },
-    stopFailedWorkTimer: function (fiber) {
-      if (!supportsUserTiming || shouldIgnoreFiber(fiber)) {
-        return;
-      }
-      // If we pause, its parent is the fiber to unwind from.
-      currentFiber = fiber['return'];
-      if (!fiber._debugIsCurrentlyTiming) {
-        return;
-      }
-      fiber._debugIsCurrentlyTiming = false;
-      var warning = 'An error was thrown inside this error boundary';
-      endFiberMark(fiber, null, warning);
-    },
-    startPhaseTimer: function (fiber, phase) {
-      if (!supportsUserTiming) {
-        return;
-      }
-      clearPendingPhaseMeasurement();
-      if (!beginFiberMark(fiber, phase)) {
-        return;
-      }
-      currentPhaseFiber = fiber;
-      currentPhase = phase;
-    },
-    stopPhaseTimer: function () {
-      if (!supportsUserTiming) {
-        return;
-      }
-      if (currentPhase !== null && currentPhaseFiber !== null) {
-        var warning = hasScheduledUpdateInCurrentPhase ? 'Scheduled a cascading update' : null;
-        endFiberMark(currentPhaseFiber, currentPhase, warning);
-      }
-      currentPhase = null;
-      currentPhaseFiber = null;
-    },
-    startWorkLoopTimer: function () {
-      if (!supportsUserTiming) {
-        return;
-      }
-      commitCountInCurrentWorkLoop = 0;
-      // This is top level call.
-      // Any other measurements are performed within.
-      beginMark('(React Tree Reconciliation)');
-      // Resume any measurements that were in progress during the last loop.
-      resumeTimers();
-    },
-    stopWorkLoopTimer: function () {
-      if (!supportsUserTiming) {
-        return;
-      }
-      var warning = commitCountInCurrentWorkLoop > 1 ? 'There were cascading updates' : null;
-      commitCountInCurrentWorkLoop = 0;
-      // Pause any measurements until the next loop.
-      pauseTimers();
-      endMark('(React Tree Reconciliation)', '(React Tree Reconciliation)', warning);
-    },
-    startCommitTimer: function () {
-      if (!supportsUserTiming) {
-        return;
-      }
-      isCommitting = true;
-      hasScheduledUpdateInCurrentCommit = false;
-      labelsInCurrentCommit.clear();
-      beginMark('(Committing Changes)');
-    },
-    stopCommitTimer: function () {
-      if (!supportsUserTiming) {
-        return;
+    if (instance.state !== oldState) {
+      {
+        var componentName = getComponentName(workInProgress) || 'Component';
+        if (!didWarnAboutStateAssignmentForComponent[componentName]) {
+          warning(false, '%s.componentWillReceiveProps(): Assigning directly to ' + "this.state is deprecated (except inside a component's " + 'constructor). Use setState instead.', componentName);
+          didWarnAboutStateAssignmentForComponent[componentName] = true;
+        }
       }
+      updater.enqueueReplaceState(instance, instance.state, null);
+    }
+  }
 
-      var warning = null;
-      if (hasScheduledUpdateInCurrentCommit) {
-        warning = 'Lifecycle hook scheduled a cascading update';
-      } else if (commitCountInCurrentWorkLoop > 0) {
-        warning = 'Caused by a cascading update in earlier commit';
-      }
-      hasScheduledUpdateInCurrentCommit = false;
-      commitCountInCurrentWorkLoop++;
-      isCommitting = false;
-      labelsInCurrentCommit.clear();
+  // Invokes the mount life-cycles on a previously never rendered instance.
+  function mountClassInstance(workInProgress, renderExpirationTime) {
+    var current = workInProgress.alternate;
 
-      endMark('(Committing Changes)', '(Committing Changes)', warning);
-    },
-    startCommitHostEffectsTimer: function () {
-      if (!supportsUserTiming) {
-        return;
-      }
-      effectCountInCurrentCommit = 0;
-      beginMark('(Committing Host Effects)');
-    },
-    stopCommitHostEffectsTimer: function () {
-      if (!supportsUserTiming) {
-        return;
-      }
-      var count = effectCountInCurrentCommit;
-      effectCountInCurrentCommit = 0;
-      endMark('(Committing Host Effects: ' + count + ' Total)', '(Committing Host Effects)', null);
-    },
-    startCommitLifeCyclesTimer: function () {
-      if (!supportsUserTiming) {
-        return;
-      }
-      effectCountInCurrentCommit = 0;
-      beginMark('(Calling Lifecycle Methods)');
-    },
-    stopCommitLifeCyclesTimer: function () {
-      if (!supportsUserTiming) {
-        return;
-      }
-      var count = effectCountInCurrentCommit;
-      effectCountInCurrentCommit = 0;
-      endMark('(Calling Lifecycle Methods: ' + count + ' Total)', '(Calling Lifecycle Methods)', null);
+    {
+      checkClassInstance(workInProgress);
     }
-  };
-}
 
-var ReactDebugFiberPerf_1 = ReactDebugFiberPerf;
+    var instance = workInProgress.stateNode;
+    var state = instance.state || null;
 
-var isFiberMounted$1 = ReactFiberTreeReflection.isFiberMounted;
+    var props = workInProgress.pendingProps;
+    !props ? invariant(false, 'There must be pending props for an initial mount. This error is likely caused by a bug in React. Please file an issue.') : void 0;
 
-var ClassComponent$3 = ReactTypeOfWork.ClassComponent;
-var HostRoot$3 = ReactTypeOfWork.HostRoot;
+    var unmaskedContext = getUnmaskedContext(workInProgress);
 
-var createCursor = ReactFiberStack.createCursor;
-var pop = ReactFiberStack.pop;
-var push = ReactFiberStack.push;
+    instance.props = props;
+    instance.state = workInProgress.memoizedState = state;
+    instance.refs = emptyObject;
+    instance.context = getMaskedContext(workInProgress, unmaskedContext);
 
-{
-  var warning$20 = require$$0;
-  var checkPropTypes$1 = checkPropTypes;
-  var ReactDebugCurrentFiber$2 = ReactDebugCurrentFiber_1;
+    if (enableAsyncSubtreeAPI && workInProgress.type != null && workInProgress.type.prototype != null && workInProgress.type.prototype.unstable_isAsyncReactComponent === true) {
+      workInProgress.internalContextTag |= AsyncUpdates;
+    }
 
-  var _require4 = ReactDebugFiberPerf_1,
-      startPhaseTimer = _require4.startPhaseTimer,
-      stopPhaseTimer = _require4.stopPhaseTimer;
+    if (typeof instance.componentWillMount === 'function') {
+      callComponentWillMount(workInProgress, instance);
+      // If we had additional state updates during this life-cycle, let's
+      // process them now.
+      var updateQueue = workInProgress.updateQueue;
+      if (updateQueue !== null) {
+        instance.state = processUpdateQueue(current, workInProgress, updateQueue, instance, props, renderExpirationTime);
+      }
+    }
+    if (typeof instance.componentDidMount === 'function') {
+      workInProgress.effectTag |= Update;
+    }
+  }
 
-  var warnedAboutMissingGetChildContext = {};
-}
+  // Called on a preexisting class instance. Returns false if a resumed render
+  // could be reused.
+  // function resumeMountClassInstance(
+  //   workInProgress: Fiber,
+  //   priorityLevel: PriorityLevel,
+  // ): boolean {
+  //   const instance = workInProgress.stateNode;
+  //   resetInputPointers(workInProgress, instance);
 
-// A cursor to the current merged context object on the stack.
-var contextStackCursor = createCursor(emptyObject);
-// A cursor to a boolean indicating whether the context has changed.
-var didPerformWorkStackCursor = createCursor(false);
-// Keep track of the previous context object that was on the stack.
-// We use this to get access to the parent context after we have already
-// pushed the next context provider, and now need to merge their contexts.
-var previousContext = emptyObject;
+  //   let newState = workInProgress.memoizedState;
+  //   let newProps = workInProgress.pendingProps;
+  //   if (!newProps) {
+  //     // If there isn't any new props, then we'll reuse the memoized props.
+  //     // This could be from already completed work.
+  //     newProps = workInProgress.memoizedProps;
+  //     invariant(
+  //       newProps != null,
+  //       'There should always be pending or memoized props. This error is ' +
+  //         'likely caused by a bug in React. Please file an issue.',
+  //     );
+  //   }
+  //   const newUnmaskedContext = getUnmaskedContext(workInProgress);
+  //   const newContext = getMaskedContext(workInProgress, newUnmaskedContext);
 
-function getUnmaskedContext(workInProgress) {
-  var hasOwnContext = isContextProvider$1(workInProgress);
-  if (hasOwnContext) {
-    // If the fiber is a context provider itself, when we read its context
-    // we have already pushed its own child context on the stack. A context
-    // provider should not "see" its own child context. Therefore we read the
-    // previous (parent) context instead for a context provider.
-    return previousContext;
-  }
-  return contextStackCursor.current;
-}
-var getUnmaskedContext_1 = getUnmaskedContext;
+  //   const oldContext = instance.context;
+  //   const oldProps = workInProgress.memoizedProps;
 
-function cacheContext(workInProgress, unmaskedContext, maskedContext) {
-  var instance = workInProgress.stateNode;
-  instance.__reactInternalMemoizedUnmaskedChildContext = unmaskedContext;
-  instance.__reactInternalMemoizedMaskedChildContext = maskedContext;
-}
-var cacheContext_1 = cacheContext;
+  //   if (
+  //     typeof instance.componentWillReceiveProps === 'function' &&
+  //     (oldProps !== newProps || oldContext !== newContext)
+  //   ) {
+  //     callComponentWillReceiveProps(
+  //       workInProgress,
+  //       instance,
+  //       newProps,
+  //       newContext,
+  //     );
+  //   }
 
-var getMaskedContext = function (workInProgress, unmaskedContext) {
-  var type = workInProgress.type;
-  var contextTypes = type.contextTypes;
-  if (!contextTypes) {
-    return emptyObject;
-  }
+  //   // Process the update queue before calling shouldComponentUpdate
+  //   const updateQueue = workInProgress.updateQueue;
+  //   if (updateQueue !== null) {
+  //     newState = processUpdateQueue(
+  //       workInProgress,
+  //       updateQueue,
+  //       instance,
+  //       newState,
+  //       newProps,
+  //       priorityLevel,
+  //     );
+  //   }
 
-  // Avoid recreating masked context unless unmasked context has changed.
-  // Failing to do this will result in unnecessary calls to componentWillReceiveProps.
-  // This may trigger infinite loops if componentWillReceiveProps calls setState.
-  var instance = workInProgress.stateNode;
-  if (instance && instance.__reactInternalMemoizedUnmaskedChildContext === unmaskedContext) {
-    return instance.__reactInternalMemoizedMaskedChildContext;
-  }
+  //   // TODO: Should we deal with a setState that happened after the last
+  //   // componentWillMount and before this componentWillMount? Probably
+  //   // unsupported anyway.
 
-  var context = {};
-  for (var key in contextTypes) {
-    context[key] = unmaskedContext[key];
-  }
+  //   if (
+  //     !checkShouldComponentUpdate(
+  //       workInProgress,
+  //       workInProgress.memoizedProps,
+  //       newProps,
+  //       workInProgress.memoizedState,
+  //       newState,
+  //       newContext,
+  //     )
+  //   ) {
+  //     // Update the existing instance's state, props, and context pointers even
+  //     // though we're bailing out.
+  //     instance.props = newProps;
+  //     instance.state = newState;
+  //     instance.context = newContext;
+  //     return false;
+  //   }
 
-  {
-    var name = getComponentName_1(workInProgress) || 'Unknown';
-    ReactDebugCurrentFiber$2.setCurrentFiber(workInProgress, null);
-    checkPropTypes$1(contextTypes, context, 'context', name, ReactDebugCurrentFiber$2.getCurrentFiberStackAddendum);
-    ReactDebugCurrentFiber$2.resetCurrentFiber();
-  }
+  //   // Update the input pointers now so that they are correct when we call
+  //   // componentWillMount
+  //   instance.props = newProps;
+  //   instance.state = newState;
+  //   instance.context = newContext;
 
-  // Cache unmasked context so we can avoid recreating masked context unless necessary.
-  // Context is created before the class component is instantiated so check for instance.
-  if (instance) {
-    cacheContext(workInProgress, unmaskedContext, context);
-  }
+  //   if (typeof instance.componentWillMount === 'function') {
+  //     callComponentWillMount(workInProgress, instance);
+  //     // componentWillMount may have called setState. Process the update queue.
+  //     const newUpdateQueue = workInProgress.updateQueue;
+  //     if (newUpdateQueue !== null) {
+  //       newState = processUpdateQueue(
+  //         workInProgress,
+  //         newUpdateQueue,
+  //         instance,
+  //         newState,
+  //         newProps,
+  //         priorityLevel,
+  //       );
+  //     }
+  //   }
 
-  return context;
-};
+  //   if (typeof instance.componentDidMount === 'function') {
+  //     workInProgress.effectTag |= Update;
+  //   }
 
-var hasContextChanged = function () {
-  return didPerformWorkStackCursor.current;
-};
+  //   instance.state = newState;
 
-function isContextConsumer(fiber) {
-  return fiber.tag === ClassComponent$3 && fiber.type.contextTypes != null;
-}
-var isContextConsumer_1 = isContextConsumer;
+  //   return true;
+  // }
 
-function isContextProvider$1(fiber) {
-  return fiber.tag === ClassComponent$3 && fiber.type.childContextTypes != null;
-}
-var isContextProvider_1 = isContextProvider$1;
+  // Invokes the update life-cycles and returns false if it shouldn't rerender.
+  function updateClassInstance(current, workInProgress, renderExpirationTime) {
+    var instance = workInProgress.stateNode;
+    resetInputPointers(workInProgress, instance);
 
-function popContextProvider(fiber) {
-  if (!isContextProvider$1(fiber)) {
-    return;
-  }
+    var oldProps = workInProgress.memoizedProps;
+    var newProps = workInProgress.pendingProps;
+    if (!newProps) {
+      // If there aren't any new props, then we'll reuse the memoized props.
+      // This could be from already completed work.
+      newProps = oldProps;
+      !(newProps != null) ? invariant(false, 'There should always be pending or memoized props. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    }
+    var oldContext = instance.context;
+    var newUnmaskedContext = getUnmaskedContext(workInProgress);
+    var newContext = getMaskedContext(workInProgress, newUnmaskedContext);
 
-  pop(didPerformWorkStackCursor, fiber);
-  pop(contextStackCursor, fiber);
-}
-var popContextProvider_1 = popContextProvider;
+    // Note: During these life-cycles, instance.props/instance.state are what
+    // ever the previously attempted to render - not the "current". However,
+    // during componentDidUpdate we pass the "current" props.
 
-var popTopLevelContextObject = function (fiber) {
-  pop(didPerformWorkStackCursor, fiber);
-  pop(contextStackCursor, fiber);
-};
+    if (typeof instance.componentWillReceiveProps === 'function' && (oldProps !== newProps || oldContext !== newContext)) {
+      callComponentWillReceiveProps(workInProgress, instance, newProps, newContext);
+    }
 
-var pushTopLevelContextObject = function (fiber, context, didChange) {
-  !(contextStackCursor.cursor == null) ? invariant(false, 'Unexpected context found on stack. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    // Compute the next state using the memoized state and the update queue.
+    var oldState = workInProgress.memoizedState;
+    // TODO: Previous state can be null.
+    var newState = void 0;
+    if (workInProgress.updateQueue !== null) {
+      newState = processUpdateQueue(current, workInProgress, workInProgress.updateQueue, instance, newProps, renderExpirationTime);
+    } else {
+      newState = oldState;
+    }
 
-  push(contextStackCursor, context, fiber);
-  push(didPerformWorkStackCursor, didChange, fiber);
-};
+    if (oldProps === newProps && oldState === newState && !hasContextChanged() && !(workInProgress.updateQueue !== null && workInProgress.updateQueue.hasForceUpdate)) {
+      // If an update was already in progress, we should schedule an Update
+      // effect even though we're bailing out, so that cWU/cDU are called.
+      if (typeof instance.componentDidUpdate === 'function') {
+        if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
+          workInProgress.effectTag |= Update;
+        }
+      }
+      return false;
+    }
 
-function processChildContext$1(fiber, parentContext, isReconciling) {
-  var instance = fiber.stateNode;
-  var childContextTypes = fiber.type.childContextTypes;
+    var shouldUpdate = checkShouldComponentUpdate(workInProgress, oldProps, newProps, oldState, newState, newContext);
 
-  // TODO (bvaughn) Replace this behavior with an invariant() in the future.
-  // It has only been added in Fiber to match the (unintentional) behavior in Stack.
-  if (typeof instance.getChildContext !== 'function') {
-    {
-      var componentName = getComponentName_1(fiber) || 'Unknown';
+    if (shouldUpdate) {
+      if (typeof instance.componentWillUpdate === 'function') {
+        startPhaseTimer(workInProgress, 'componentWillUpdate');
+        instance.componentWillUpdate(newProps, newState, newContext);
+        stopPhaseTimer();
 
-      if (!warnedAboutMissingGetChildContext[componentName]) {
-        warnedAboutMissingGetChildContext[componentName] = true;
-        warning$20(false, '%s.childContextTypes is specified but there is no getChildContext() method ' + 'on the instance. You can either define getChildContext() on %s or remove ' + 'childContextTypes from it.', componentName, componentName);
+        // Simulate an async bailout/interruption by invoking lifecycle twice.
+        if (debugRenderPhaseSideEffects) {
+          instance.componentWillUpdate(newProps, newState, newContext);
+        }
+      }
+      if (typeof instance.componentDidUpdate === 'function') {
+        workInProgress.effectTag |= Update;
+      }
+    } else {
+      // If an update was already in progress, we should schedule an Update
+      // effect even though we're bailing out, so that cWU/cDU are called.
+      if (typeof instance.componentDidUpdate === 'function') {
+        if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
+          workInProgress.effectTag |= Update;
+        }
       }
-    }
-    return parentContext;
-  }
 
-  var childContext = void 0;
-  {
-    ReactDebugCurrentFiber$2.setCurrentFiber(fiber, 'getChildContext');
-    startPhaseTimer(fiber, 'getChildContext');
-    childContext = instance.getChildContext();
-    stopPhaseTimer();
-    ReactDebugCurrentFiber$2.resetCurrentFiber();
-  }
-  for (var contextKey in childContext) {
-    !(contextKey in childContextTypes) ? invariant(false, '%s.getChildContext(): key "%s" is not defined in childContextTypes.', getComponentName_1(fiber) || 'Unknown', contextKey) : void 0;
-  }
-  {
-    var name = getComponentName_1(fiber) || 'Unknown';
-    // We can only provide accurate element stacks if we pass work-in-progress tree
-    // during the begin or complete phase. However currently this function is also
-    // called from unstable_renderSubtree legacy implementation. In this case it unsafe to
-    // assume anything about the given fiber. We won't pass it down if we aren't sure.
-    // TODO: remove this hack when we delete unstable_renderSubtree in Fiber.
-    var workInProgress = isReconciling ? fiber : null;
-    ReactDebugCurrentFiber$2.setCurrentFiber(workInProgress, null);
-    checkPropTypes$1(childContextTypes, childContext, 'child context', name, ReactDebugCurrentFiber$2.getCurrentFiberStackAddendum);
-    ReactDebugCurrentFiber$2.resetCurrentFiber();
-  }
+      // If shouldComponentUpdate returned false, we should still update the
+      // memoized props/state to indicate that this work can be reused.
+      memoizeProps(workInProgress, newProps);
+      memoizeState(workInProgress, newState);
+    }
 
-  return _assign({}, parentContext, childContext);
-}
-var processChildContext_1 = processChildContext$1;
+    // Update the existing instance's state, props, and context pointers even
+    // if shouldComponentUpdate returns false.
+    instance.props = newProps;
+    instance.state = newState;
+    instance.context = newContext;
 
-var pushContextProvider = function (workInProgress) {
-  if (!isContextProvider$1(workInProgress)) {
-    return false;
+    return shouldUpdate;
   }
 
-  var instance = workInProgress.stateNode;
-  // We push the context as early as possible to ensure stack integrity.
-  // If the instance does not exist yet, we will push null at first,
-  // and replace it on the stack later when invalidating the context.
-  var memoizedMergedChildContext = instance && instance.__reactInternalMemoizedMergedChildContext || emptyObject;
-
-  // Remember the parent context so we can merge with it later.
-  // Inherit the parent's did-perform-work value to avoid inadvertantly blocking updates.
-  previousContext = contextStackCursor.current;
-  push(contextStackCursor, memoizedMergedChildContext, workInProgress);
-  push(didPerformWorkStackCursor, didPerformWorkStackCursor.current, workInProgress);
-
-  return true;
+  return {
+    adoptClassInstance: adoptClassInstance,
+    constructClassInstance: constructClassInstance,
+    mountClassInstance: mountClassInstance,
+    // resumeMountClassInstance,
+    updateClassInstance: updateClassInstance
+  };
 };
 
-var invalidateContextProvider = function (workInProgress, didChange) {
-  var instance = workInProgress.stateNode;
-  !instance ? invariant(false, 'Expected to have an instance by this point. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-
-  if (didChange) {
-    // Merge parent and own context.
-    // Skip this if we're not updating due to sCU.
-    // This avoids unnecessarily recomputing memoized values.
-    var mergedContext = processChildContext$1(workInProgress, previousContext, true);
-    instance.__reactInternalMemoizedMergedChildContext = mergedContext;
-
-    // Replace the old (or empty) context with the new one.
-    // It is important to unwind the context in the reverse order.
-    pop(didPerformWorkStackCursor, workInProgress);
-    pop(contextStackCursor, workInProgress);
-    // Now push the new context and mark that it has changed.
-    push(contextStackCursor, mergedContext, workInProgress);
-    push(didPerformWorkStackCursor, didChange, workInProgress);
-  } else {
-    pop(didPerformWorkStackCursor, workInProgress);
-    push(didPerformWorkStackCursor, didChange, workInProgress);
-  }
-};
+// The Symbol used to tag the ReactElement-like types. If there is no native Symbol
+// nor polyfill, then a plain number is used for performance.
+var hasSymbol = typeof Symbol === 'function' && Symbol['for'];
 
-var resetContext = function () {
-  previousContext = emptyObject;
-  contextStackCursor.current = emptyObject;
-  didPerformWorkStackCursor.current = false;
-};
+var REACT_ELEMENT_TYPE = hasSymbol ? Symbol['for']('react.element') : 0xeac7;
+var REACT_CALL_TYPE = hasSymbol ? Symbol['for']('react.call') : 0xeac8;
+var REACT_RETURN_TYPE = hasSymbol ? Symbol['for']('react.return') : 0xeac9;
+var REACT_PORTAL_TYPE = hasSymbol ? Symbol['for']('react.portal') : 0xeaca;
+var REACT_FRAGMENT_TYPE = hasSymbol ? Symbol['for']('react.fragment') : 0xeacb;
 
-var findCurrentUnmaskedContext$1 = function (fiber) {
-  // Currently this is only used with renderSubtreeIntoContainer; not sure if it
-  // makes sense elsewhere
-  !(isFiberMounted$1(fiber) && fiber.tag === ClassComponent$3) ? invariant(false, 'Expected subtree parent to be a mounted class component. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+var MAYBE_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
+var FAUX_ITERATOR_SYMBOL = '@@iterator';
 
-  var node = fiber;
-  while (node.tag !== HostRoot$3) {
-    if (isContextProvider$1(node)) {
-      return node.stateNode.__reactInternalMemoizedMergedChildContext;
-    }
-    var parent = node['return'];
-    !parent ? invariant(false, 'Found unexpected detached subtree parent. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-    node = parent;
+function getIteratorFn(maybeIterable) {
+  if (maybeIterable === null || typeof maybeIterable === 'undefined') {
+    return null;
   }
-  return node.stateNode.context;
-};
-
-var ReactFiberContext = {
-	getUnmaskedContext: getUnmaskedContext_1,
-	cacheContext: cacheContext_1,
-	getMaskedContext: getMaskedContext,
-	hasContextChanged: hasContextChanged,
-	isContextConsumer: isContextConsumer_1,
-	isContextProvider: isContextProvider_1,
-	popContextProvider: popContextProvider_1,
-	popTopLevelContextObject: popTopLevelContextObject,
-	pushTopLevelContextObject: pushTopLevelContextObject,
-	processChildContext: processChildContext_1,
-	pushContextProvider: pushContextProvider,
-	invalidateContextProvider: invalidateContextProvider,
-	resetContext: resetContext,
-	findCurrentUnmaskedContext: findCurrentUnmaskedContext$1
-};
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactTypeOfInternalContext
- * 
- */
-
-var ReactTypeOfInternalContext = {
-  NoContext: 0,
-  AsyncUpdates: 1
-};
-
-var IndeterminateComponent$1 = ReactTypeOfWork.IndeterminateComponent;
-var ClassComponent$4 = ReactTypeOfWork.ClassComponent;
-var HostRoot$5 = ReactTypeOfWork.HostRoot;
-var HostComponent$5 = ReactTypeOfWork.HostComponent;
-var HostText$3 = ReactTypeOfWork.HostText;
-var HostPortal$2 = ReactTypeOfWork.HostPortal;
-var CoroutineComponent = ReactTypeOfWork.CoroutineComponent;
-var YieldComponent$1 = ReactTypeOfWork.YieldComponent;
-var Fragment$1 = ReactTypeOfWork.Fragment;
-
-var NoWork$1 = ReactPriorityLevel.NoWork;
-
-var NoContext = ReactTypeOfInternalContext.NoContext;
-
-var NoEffect$1 = ReactTypeOfSideEffect.NoEffect;
+  var maybeIterator = MAYBE_ITERATOR_SYMBOL && maybeIterable[MAYBE_ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
+  if (typeof maybeIterator === 'function') {
+    return maybeIterator;
+  }
+  return null;
+}
 
+var getCurrentFiberStackAddendum$1 = ReactDebugCurrentFiber.getCurrentFiberStackAddendum;
 
 
 {
-  var getComponentName$6 = getComponentName_1;
-  var hasBadMapPolyfill = false;
-  try {
-    var nonExtensibleObject = Object.preventExtensions({});
-    /* eslint-disable no-new */
-    new Map([[nonExtensibleObject, null]]);
-    new Set([nonExtensibleObject]);
-    /* eslint-enable no-new */
-  } catch (e) {
-    // TODO: Consider warning about bad polyfills
-    hasBadMapPolyfill = true;
-  }
-}
+  var didWarnAboutMaps = false;
+  /**
+   * Warn if there's no key explicitly set on dynamic arrays of children or
+   * object keys are not valid. This allows us to keep track of children between
+   * updates.
+   */
+  var ownerHasKeyUseWarning = {};
+  var ownerHasFunctionTypeWarning = {};
 
-// A Fiber is work on a Component that needs to be done or was done. There can
-// be more than one per component.
+  var warnForMissingKey = function (child) {
+    if (child === null || typeof child !== 'object') {
+      return;
+    }
+    if (!child._store || child._store.validated || child.key != null) {
+      return;
+    }
+    !(typeof child._store === 'object') ? invariant(false, 'React Component in warnForMissingKey should have a _store. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    child._store.validated = true;
 
+    var currentComponentErrorInfo = 'Each child in an array or iterator should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.' + (getCurrentFiberStackAddendum$1() || '');
+    if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {
+      return;
+    }
+    ownerHasKeyUseWarning[currentComponentErrorInfo] = true;
 
-{
-  var debugCounter = 1;
+    warning(false, 'Each child in an array or iterator should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.%s', getCurrentFiberStackAddendum$1());
+  };
 }
 
-function FiberNode(tag, key, internalContextTag) {
-  // Instance
-  this.tag = tag;
-  this.key = key;
-  this.type = null;
-  this.stateNode = null;
-
-  // Fiber
-  this['return'] = null;
-  this.child = null;
-  this.sibling = null;
-  this.index = 0;
-
-  this.ref = null;
-
-  this.pendingProps = null;
-  this.memoizedProps = null;
-  this.updateQueue = null;
-  this.memoizedState = null;
-
-  this.internalContextTag = internalContextTag;
-
-  // Effects
-  this.effectTag = NoEffect$1;
-  this.nextEffect = null;
-
-  this.firstEffect = null;
-  this.lastEffect = null;
-
-  this.pendingWorkPriority = NoWork$1;
-
-  this.alternate = null;
+var isArray$1 = Array.isArray;
 
-  {
-    this._debugID = debugCounter++;
-    this._debugSource = null;
-    this._debugOwner = null;
-    this._debugIsCurrentlyTiming = false;
-    if (!hasBadMapPolyfill && typeof Object.preventExtensions === 'function') {
-      Object.preventExtensions(this);
+function coerceRef(current, element) {
+  var mixedRef = element.ref;
+  if (mixedRef !== null && typeof mixedRef !== 'function') {
+    if (element._owner) {
+      var owner = element._owner;
+      var inst = void 0;
+      if (owner) {
+        var ownerFiber = owner;
+        !(ownerFiber.tag === ClassComponent) ? invariant(false, 'Stateless function components cannot have refs.') : void 0;
+        inst = ownerFiber.stateNode;
+      }
+      !inst ? invariant(false, 'Missing owner for string ref %s. This error is likely caused by a bug in React. Please file an issue.', mixedRef) : void 0;
+      var stringRef = '' + mixedRef;
+      // Check if previous string ref matches new string ref
+      if (current !== null && current.ref !== null && current.ref._stringRef === stringRef) {
+        return current.ref;
+      }
+      var ref = function (value) {
+        var refs = inst.refs === emptyObject ? inst.refs = {} : inst.refs;
+        if (value === null) {
+          delete refs[stringRef];
+        } else {
+          refs[stringRef] = value;
+        }
+      };
+      ref._stringRef = stringRef;
+      return ref;
+    } else {
+      !(typeof mixedRef === 'string') ? invariant(false, 'Expected ref to be a function or a string.') : void 0;
+      !element._owner ? invariant(false, 'Element ref was specified as a string (%s) but no owner was set. You may have multiple copies of React loaded. (details: https://fb.me/react-refs-must-have-owner).', mixedRef) : void 0;
     }
   }
+  return mixedRef;
 }
 
-// This is a constructor function, rather than a POJO constructor, still
-// please ensure we do the following:
-// 1) Nobody should add any instance methods on this. Instance methods can be
-//    more difficult to predict when they get optimized and they are almost
-//    never inlined properly in static compilers.
-// 2) Nobody should rely on `instanceof Fiber` for type testing. We should
-//    always know when it is a fiber.
-// 3) We might want to experiment with using numeric keys since they are easier
-//    to optimize in a non-JIT environment.
-// 4) We can easily go from a constructor to a createFiber object literal if that
-//    is faster.
-// 5) It should be easy to port this to a C struct and keep a C implementation
-//    compatible.
-var createFiber = function (tag, key, internalContextTag) {
-  // $FlowFixMe: the shapes are exact here but Flow doesn't like constructors
-  return new FiberNode(tag, key, internalContextTag);
-};
-
-function shouldConstruct(Component) {
-  return !!(Component.prototype && Component.prototype.isReactComponent);
-}
-
-// This is used to create an alternate fiber to do work on.
-var createWorkInProgress = function (current, renderPriority) {
-  var workInProgress = current.alternate;
-  if (workInProgress === null) {
-    // We use a double buffering pooling technique because we know that we'll
-    // only ever need at most two versions of a tree. We pool the "other" unused
-    // node that we're free to reuse. This is lazily created to avoid allocating
-    // extra objects for things that are never updated. It also allow us to
-    // reclaim the extra memory if needed.
-    workInProgress = createFiber(current.tag, current.key, current.internalContextTag);
-    workInProgress.type = current.type;
-    workInProgress.stateNode = current.stateNode;
-
+function throwOnInvalidObjectType(returnFiber, newChild) {
+  if (returnFiber.type !== 'textarea') {
+    var addendum = '';
     {
-      // DEV-only fields
-      workInProgress._debugID = current._debugID;
-      workInProgress._debugSource = current._debugSource;
-      workInProgress._debugOwner = current._debugOwner;
+      addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + (getCurrentFiberStackAddendum$1() || '');
     }
-
-    workInProgress.alternate = current;
-    current.alternate = workInProgress;
-  } else {
-    // We already have an alternate.
-    // Reset the effect tag.
-    workInProgress.effectTag = NoEffect$1;
-
-    // The effect list is no longer valid.
-    workInProgress.nextEffect = null;
-    workInProgress.firstEffect = null;
-    workInProgress.lastEffect = null;
+    invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum);
   }
+}
 
-  workInProgress.pendingWorkPriority = renderPriority;
-
-  workInProgress.child = current.child;
-  workInProgress.memoizedProps = current.memoizedProps;
-  workInProgress.memoizedState = current.memoizedState;
-  workInProgress.updateQueue = current.updateQueue;
-
-  // pendingProps is set by the parent during reconciliation.
-  // TODO: Pass this as an argument.
-
-  // These will be overridden during the parent's reconciliation
-  workInProgress.sibling = current.sibling;
-  workInProgress.index = current.index;
-  workInProgress.ref = current.ref;
+function warnOnFunctionType() {
+  var currentComponentErrorInfo = 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of <Component /> from render. ' + 'Or maybe you meant to call this function rather than return it.' + (getCurrentFiberStackAddendum$1() || '');
 
-  return workInProgress;
-};
+  if (ownerHasFunctionTypeWarning[currentComponentErrorInfo]) {
+    return;
+  }
+  ownerHasFunctionTypeWarning[currentComponentErrorInfo] = true;
 
-var createHostRootFiber$1 = function () {
-  var fiber = createFiber(HostRoot$5, null, NoContext);
-  return fiber;
-};
+  warning(false, 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of <Component /> from render. ' + 'Or maybe you meant to call this function rather than return it.%s', getCurrentFiberStackAddendum$1() || '');
+}
 
-var createFiberFromElement = function (element, internalContextTag, priorityLevel) {
-  var owner = null;
-  {
-    owner = element._owner;
+// This wrapper function exists because I expect to clone the code in each path
+// to be able to optimize each path individually by branching early. This needs
+// a compiler or we can do it manually. Helpers that don't need this branching
+// live outside of this function.
+function ChildReconciler(shouldTrackSideEffects) {
+  function deleteChild(returnFiber, childToDelete) {
+    if (!shouldTrackSideEffects) {
+      // Noop.
+      return;
+    }
+    // Deletions are added in reversed order so we add it to the front.
+    // At this point, the return fiber's effect list is empty except for
+    // deletions, so we can just append the deletion to the list. The remaining
+    // effects aren't added until the complete phase. Once we implement
+    // resuming, this may not be true.
+    var last = returnFiber.lastEffect;
+    if (last !== null) {
+      last.nextEffect = childToDelete;
+      returnFiber.lastEffect = childToDelete;
+    } else {
+      returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
+    }
+    childToDelete.nextEffect = null;
+    childToDelete.effectTag = Deletion;
   }
 
-  var fiber = createFiberFromElementType(element.type, element.key, internalContextTag, owner);
-  fiber.pendingProps = element.props;
-  fiber.pendingWorkPriority = priorityLevel;
+  function deleteRemainingChildren(returnFiber, currentFirstChild) {
+    if (!shouldTrackSideEffects) {
+      // Noop.
+      return null;
+    }
 
-  {
-    fiber._debugSource = element._source;
-    fiber._debugOwner = element._owner;
+    // TODO: For the shouldClone case, this could be micro-optimized a bit by
+    // assuming that after the first child we've already added everything.
+    var childToDelete = currentFirstChild;
+    while (childToDelete !== null) {
+      deleteChild(returnFiber, childToDelete);
+      childToDelete = childToDelete.sibling;
+    }
+    return null;
   }
 
-  return fiber;
-};
+  function mapRemainingChildren(returnFiber, currentFirstChild) {
+    // Add the remaining children to a temporary map so that we can find them by
+    // keys quickly. Implicit (null) keys get added to this set with their index
+    var existingChildren = new Map();
 
-var createFiberFromFragment = function (elements, internalContextTag, priorityLevel) {
-  // TODO: Consider supporting keyed fragments. Technically, we accidentally
-  // support that in the existing React.
-  var fiber = createFiber(Fragment$1, null, internalContextTag);
-  fiber.pendingProps = elements;
-  fiber.pendingWorkPriority = priorityLevel;
-  return fiber;
-};
+    var existingChild = currentFirstChild;
+    while (existingChild !== null) {
+      if (existingChild.key !== null) {
+        existingChildren.set(existingChild.key, existingChild);
+      } else {
+        existingChildren.set(existingChild.index, existingChild);
+      }
+      existingChild = existingChild.sibling;
+    }
+    return existingChildren;
+  }
 
-var createFiberFromText = function (content, internalContextTag, priorityLevel) {
-  var fiber = createFiber(HostText$3, null, internalContextTag);
-  fiber.pendingProps = content;
-  fiber.pendingWorkPriority = priorityLevel;
-  return fiber;
-};
+  function useFiber(fiber, pendingProps, expirationTime) {
+    // We currently set sibling to null and index to 0 here because it is easy
+    // to forget to do before returning it. E.g. for the single child case.
+    var clone = createWorkInProgress(fiber, pendingProps, expirationTime);
+    clone.index = 0;
+    clone.sibling = null;
+    return clone;
+  }
 
-function createFiberFromElementType(type, key, internalContextTag, debugOwner) {
-  var fiber = void 0;
-  if (typeof type === 'function') {
-    fiber = shouldConstruct(type) ? createFiber(ClassComponent$4, key, internalContextTag) : createFiber(IndeterminateComponent$1, key, internalContextTag);
-    fiber.type = type;
-  } else if (typeof type === 'string') {
-    fiber = createFiber(HostComponent$5, key, internalContextTag);
-    fiber.type = type;
-  } else if (typeof type === 'object' && type !== null && typeof type.tag === 'number') {
-    // Currently assumed to be a continuation and therefore is a fiber already.
-    // TODO: The yield system is currently broken for updates in some cases.
-    // The reified yield stores a fiber, but we don't know which fiber that is;
-    // the current or a workInProgress? When the continuation gets rendered here
-    // we don't know if we can reuse that fiber or if we need to clone it.
-    // There is probably a clever way to restructure this.
-    fiber = type;
-  } else {
-    var info = '';
-    {
-      if (type === undefined || typeof type === 'object' && type !== null && Object.keys(type).length === 0) {
-        info += ' You likely forgot to export your component from the file ' + "it's defined in.";
-      }
-      var ownerName = debugOwner ? getComponentName$6(debugOwner) : null;
-      if (ownerName) {
-        info += '\n\nCheck the render method of `' + ownerName + '`.';
+  function placeChild(newFiber, lastPlacedIndex, newIndex) {
+    newFiber.index = newIndex;
+    if (!shouldTrackSideEffects) {
+      // Noop.
+      return lastPlacedIndex;
+    }
+    var current = newFiber.alternate;
+    if (current !== null) {
+      var oldIndex = current.index;
+      if (oldIndex < lastPlacedIndex) {
+        // This is a move.
+        newFiber.effectTag = Placement;
+        return lastPlacedIndex;
+      } else {
+        // This item can stay in place.
+        return oldIndex;
       }
+    } else {
+      // This is an insertion.
+      newFiber.effectTag = Placement;
+      return lastPlacedIndex;
     }
-    invariant(false, 'Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: %s.%s', type == null ? type : typeof type, info);
   }
-  return fiber;
-}
-
-var createFiberFromElementType_1 = createFiberFromElementType;
-
-var createFiberFromHostInstanceForDeletion = function () {
-  var fiber = createFiber(HostComponent$5, null, NoContext);
-  fiber.type = 'DELETED';
-  return fiber;
-};
-
-var createFiberFromCoroutine = function (coroutine, internalContextTag, priorityLevel) {
-  var fiber = createFiber(CoroutineComponent, coroutine.key, internalContextTag);
-  fiber.type = coroutine.handler;
-  fiber.pendingProps = coroutine;
-  fiber.pendingWorkPriority = priorityLevel;
-  return fiber;
-};
-
-var createFiberFromYield = function (yieldNode, internalContextTag, priorityLevel) {
-  var fiber = createFiber(YieldComponent$1, null, internalContextTag);
-  return fiber;
-};
-
-var createFiberFromPortal = function (portal, internalContextTag, priorityLevel) {
-  var fiber = createFiber(HostPortal$2, portal.key, internalContextTag);
-  fiber.pendingProps = portal.children || [];
-  fiber.pendingWorkPriority = priorityLevel;
-  fiber.stateNode = {
-    containerInfo: portal.containerInfo,
-    implementation: portal.implementation
-  };
-  return fiber;
-};
-
-var largerPriority = function (p1, p2) {
-  return p1 !== NoWork$1 && (p2 === NoWork$1 || p2 > p1) ? p1 : p2;
-};
-
-var ReactFiber = {
-	createWorkInProgress: createWorkInProgress,
-	createHostRootFiber: createHostRootFiber$1,
-	createFiberFromElement: createFiberFromElement,
-	createFiberFromFragment: createFiberFromFragment,
-	createFiberFromText: createFiberFromText,
-	createFiberFromElementType: createFiberFromElementType_1,
-	createFiberFromHostInstanceForDeletion: createFiberFromHostInstanceForDeletion,
-	createFiberFromCoroutine: createFiberFromCoroutine,
-	createFiberFromYield: createFiberFromYield,
-	createFiberFromPortal: createFiberFromPortal,
-	largerPriority: largerPriority
-};
-
-var createHostRootFiber = ReactFiber.createHostRootFiber;
 
-var createFiberRoot$1 = function (containerInfo) {
-  // Cyclic construction. This cheats the type system right now because
-  // stateNode is any.
-  var uninitializedFiber = createHostRootFiber();
-  var root = {
-    current: uninitializedFiber,
-    containerInfo: containerInfo,
-    isScheduled: false,
-    nextScheduledRoot: null,
-    context: null,
-    pendingContext: null
-  };
-  uninitializedFiber.stateNode = root;
-  return root;
-};
-
-var ReactFiberRoot = {
-	createFiberRoot: createFiberRoot$1
-};
-
-var defaultShowDialog = function (capturedError) {
-  return true;
-};
-
-var showDialog = defaultShowDialog;
-
-function logCapturedError$1(capturedError) {
-  var logError = showDialog(capturedError);
-
-  // Allow injected showDialog() to prevent default console.error logging.
-  // This enables renderers like ReactNative to better manage redbox behavior.
-  if (logError === false) {
-    return;
+  function placeSingleChild(newFiber) {
+    // This is simpler for the single child case. We only need to do a
+    // placement for inserting new children.
+    if (shouldTrackSideEffects && newFiber.alternate === null) {
+      newFiber.effectTag = Placement;
+    }
+    return newFiber;
   }
 
-  var error = capturedError.error;
-  {
-    var componentName = capturedError.componentName,
-        componentStack = capturedError.componentStack,
-        errorBoundaryName = capturedError.errorBoundaryName,
-        errorBoundaryFound = capturedError.errorBoundaryFound,
-        willRetry = capturedError.willRetry;
-
-
-    var componentNameMessage = componentName ? 'The above error occurred in the <' + componentName + '> component:' : 'The above error occurred in one of your React components:';
+  function updateTextNode(returnFiber, current, textContent, expirationTime) {
+    if (current === null || current.tag !== HostText) {
+      // Insert
+      var created = createFiberFromText(textContent, returnFiber.internalContextTag, expirationTime);
+      created['return'] = returnFiber;
+      return created;
+    } else {
+      // Update
+      var existing = useFiber(current, textContent, expirationTime);
+      existing['return'] = returnFiber;
+      return existing;
+    }
+  }
 
-    var errorBoundaryMessage = void 0;
-    // errorBoundaryFound check is sufficient; errorBoundaryName check is to satisfy Flow.
-    if (errorBoundaryFound && errorBoundaryName) {
-      if (willRetry) {
-        errorBoundaryMessage = 'React will try to recreate this component tree from scratch ' + ('using the error boundary you provided, ' + errorBoundaryName + '.');
-      } else {
-        errorBoundaryMessage = 'This error was initially handled by the error boundary ' + errorBoundaryName + '.\n' + 'Recreating the tree from scratch failed so React will unmount the tree.';
+  function updateElement(returnFiber, current, element, expirationTime) {
+    if (current !== null && current.type === element.type) {
+      // Move based on index
+      var existing = useFiber(current, element.props, expirationTime);
+      existing.ref = coerceRef(current, element);
+      existing['return'] = returnFiber;
+      {
+        existing._debugSource = element._source;
+        existing._debugOwner = element._owner;
       }
+      return existing;
     } else {
-      errorBoundaryMessage = 'Consider adding an error boundary to your tree to customize error handling behavior.\n' + 'You can learn more about error boundaries at https://fb.me/react-error-boundaries.';
+      // Insert
+      var created = createFiberFromElement(element, returnFiber.internalContextTag, expirationTime);
+      created.ref = coerceRef(current, element);
+      created['return'] = returnFiber;
+      return created;
     }
-    var combinedMessage = '' + componentNameMessage + componentStack + '\n\n' + ('' + errorBoundaryMessage);
+  }
 
-    // In development, we provide our own message with just the component stack.
-    // We don't include the original error message and JS stack because the browser
-    // has already printed it. Even if the application swallows the error, it is still
-    // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils.
-    console.error(combinedMessage);
+  function updateCall(returnFiber, current, call, expirationTime) {
+    // TODO: Should this also compare handler to determine whether to reuse?
+    if (current === null || current.tag !== CallComponent) {
+      // Insert
+      var created = createFiberFromCall(call, returnFiber.internalContextTag, expirationTime);
+      created['return'] = returnFiber;
+      return created;
+    } else {
+      // Move based on index
+      var existing = useFiber(current, call, expirationTime);
+      existing['return'] = returnFiber;
+      return existing;
+    }
   }
-}
 
-var injection$1 = {
-  /**
-   * Display custom dialog for lifecycle errors.
-   * Return false to prevent default behavior of logging to console.error.
-   */
-  injectDialog: function (fn) {
-    !(showDialog === defaultShowDialog) ? invariant(false, 'The custom dialog was already injected.') : void 0;
-    !(typeof fn === 'function') ? invariant(false, 'Injected showDialog() must be a function.') : void 0;
-    showDialog = fn;
+  function updateReturn(returnFiber, current, returnNode, expirationTime) {
+    if (current === null || current.tag !== ReturnComponent) {
+      // Insert
+      var created = createFiberFromReturn(returnNode, returnFiber.internalContextTag, expirationTime);
+      created.type = returnNode.value;
+      created['return'] = returnFiber;
+      return created;
+    } else {
+      // Move based on index
+      var existing = useFiber(current, null, expirationTime);
+      existing.type = returnNode.value;
+      existing['return'] = returnFiber;
+      return existing;
+    }
   }
-};
 
-var logCapturedError_1 = logCapturedError$1;
+  function updatePortal(returnFiber, current, portal, expirationTime) {
+    if (current === null || current.tag !== HostPortal || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {
+      // Insert
+      var created = createFiberFromPortal(portal, returnFiber.internalContextTag, expirationTime);
+      created['return'] = returnFiber;
+      return created;
+    } else {
+      // Update
+      var existing = useFiber(current, portal.children || [], expirationTime);
+      existing['return'] = returnFiber;
+      return existing;
+    }
+  }
 
-var ReactFiberErrorLogger = {
-	injection: injection$1,
-	logCapturedError: logCapturedError_1
-};
+  function updateFragment(returnFiber, current, fragment, expirationTime, key) {
+    if (current === null || current.tag !== Fragment) {
+      // Insert
+      var created = createFiberFromFragment(fragment, returnFiber.internalContextTag, expirationTime, key);
+      created['return'] = returnFiber;
+      return created;
+    } else {
+      // Update
+      var existing = useFiber(current, fragment, expirationTime);
+      existing['return'] = returnFiber;
+      return existing;
+    }
+  }
 
-/**
- * Copyright (c) 2014-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactCoroutine
- * 
- */
+  function createChild(returnFiber, newChild, expirationTime) {
+    if (typeof newChild === 'string' || typeof newChild === 'number') {
+      // Text nodes don't have keys. If the previous node is implicitly keyed
+      // we can continue to replace it without aborting even if it is not a text
+      // node.
+      var created = createFiberFromText('' + newChild, returnFiber.internalContextTag, expirationTime);
+      created['return'] = returnFiber;
+      return created;
+    }
 
-// The Symbol used to tag the special React types. If there is no native Symbol
-// nor polyfill, then a plain number is used for performance.
-var REACT_COROUTINE_TYPE$1;
-var REACT_YIELD_TYPE$1;
-if (typeof Symbol === 'function' && Symbol['for']) {
-  REACT_COROUTINE_TYPE$1 = Symbol['for']('react.coroutine');
-  REACT_YIELD_TYPE$1 = Symbol['for']('react.yield');
-} else {
-  REACT_COROUTINE_TYPE$1 = 0xeac8;
-  REACT_YIELD_TYPE$1 = 0xeac9;
-}
+    if (typeof newChild === 'object' && newChild !== null) {
+      switch (newChild.$$typeof) {
+        case REACT_ELEMENT_TYPE:
+          {
+            if (newChild.type === REACT_FRAGMENT_TYPE) {
+              var _created = createFiberFromFragment(newChild.props.children, returnFiber.internalContextTag, expirationTime, newChild.key);
+              _created['return'] = returnFiber;
+              return _created;
+            } else {
+              var _created2 = createFiberFromElement(newChild, returnFiber.internalContextTag, expirationTime);
+              _created2.ref = coerceRef(null, newChild);
+              _created2['return'] = returnFiber;
+              return _created2;
+            }
+          }
 
-var createCoroutine = function (children, handler, props) {
-  var key = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+        case REACT_CALL_TYPE:
+          {
+            var _created3 = createFiberFromCall(newChild, returnFiber.internalContextTag, expirationTime);
+            _created3['return'] = returnFiber;
+            return _created3;
+          }
 
-  var coroutine = {
-    // This tag allow us to uniquely identify this as a React Coroutine
-    $$typeof: REACT_COROUTINE_TYPE$1,
-    key: key == null ? null : '' + key,
-    children: children,
-    handler: handler,
-    props: props
-  };
+        case REACT_RETURN_TYPE:
+          {
+            var _created4 = createFiberFromReturn(newChild, returnFiber.internalContextTag, expirationTime);
+            _created4.type = newChild.value;
+            _created4['return'] = returnFiber;
+            return _created4;
+          }
 
-  {
-    // TODO: Add _store property for marking this as validated.
-    if (Object.freeze) {
-      Object.freeze(coroutine.props);
-      Object.freeze(coroutine);
-    }
-  }
+        case REACT_PORTAL_TYPE:
+          {
+            var _created5 = createFiberFromPortal(newChild, returnFiber.internalContextTag, expirationTime);
+            _created5['return'] = returnFiber;
+            return _created5;
+          }
+      }
 
-  return coroutine;
-};
+      if (isArray$1(newChild) || getIteratorFn(newChild)) {
+        var _created6 = createFiberFromFragment(newChild, returnFiber.internalContextTag, expirationTime, null);
+        _created6['return'] = returnFiber;
+        return _created6;
+      }
 
-var createYield = function (value) {
-  var yieldNode = {
-    // This tag allow us to uniquely identify this as a React Yield
-    $$typeof: REACT_YIELD_TYPE$1,
-    value: value
-  };
+      throwOnInvalidObjectType(returnFiber, newChild);
+    }
 
-  {
-    // TODO: Add _store property for marking this as validated.
-    if (Object.freeze) {
-      Object.freeze(yieldNode);
+    {
+      if (typeof newChild === 'function') {
+        warnOnFunctionType();
+      }
     }
-  }
 
-  return yieldNode;
-};
+    return null;
+  }
 
-/**
- * Verifies the object is a coroutine object.
- */
-var isCoroutine = function (object) {
-  return typeof object === 'object' && object !== null && object.$$typeof === REACT_COROUTINE_TYPE$1;
-};
+  function updateSlot(returnFiber, oldFiber, newChild, expirationTime) {
+    // Update the fiber if the keys match, otherwise return null.
 
-/**
- * Verifies the object is a yield object.
- */
-var isYield = function (object) {
-  return typeof object === 'object' && object !== null && object.$$typeof === REACT_YIELD_TYPE$1;
-};
+    var key = oldFiber !== null ? oldFiber.key : null;
 
-var REACT_YIELD_TYPE_1 = REACT_YIELD_TYPE$1;
-var REACT_COROUTINE_TYPE_1 = REACT_COROUTINE_TYPE$1;
+    if (typeof newChild === 'string' || typeof newChild === 'number') {
+      // Text nodes don't have keys. If the previous node is implicitly keyed
+      // we can continue to replace it without aborting even if it is not a text
+      // node.
+      if (key !== null) {
+        return null;
+      }
+      return updateTextNode(returnFiber, oldFiber, '' + newChild, expirationTime);
+    }
 
-var ReactCoroutine = {
-	createCoroutine: createCoroutine,
-	createYield: createYield,
-	isCoroutine: isCoroutine,
-	isYield: isYield,
-	REACT_YIELD_TYPE: REACT_YIELD_TYPE_1,
-	REACT_COROUTINE_TYPE: REACT_COROUTINE_TYPE_1
-};
+    if (typeof newChild === 'object' && newChild !== null) {
+      switch (newChild.$$typeof) {
+        case REACT_ELEMENT_TYPE:
+          {
+            if (newChild.key === key) {
+              if (newChild.type === REACT_FRAGMENT_TYPE) {
+                return updateFragment(returnFiber, oldFiber, newChild.props.children, expirationTime, key);
+              }
+              return updateElement(returnFiber, oldFiber, newChild, expirationTime);
+            } else {
+              return null;
+            }
+          }
 
-/**
- * Copyright (c) 2014-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactPortal
- * 
- */
+        case REACT_CALL_TYPE:
+          {
+            if (newChild.key === key) {
+              return updateCall(returnFiber, oldFiber, newChild, expirationTime);
+            } else {
+              return null;
+            }
+          }
 
-// The Symbol used to tag the special React types. If there is no native Symbol
-// nor polyfill, then a plain number is used for performance.
-var REACT_PORTAL_TYPE$1 = typeof Symbol === 'function' && Symbol['for'] && Symbol['for']('react.portal') || 0xeaca;
+        case REACT_RETURN_TYPE:
+          {
+            // Returns don't have keys. If the previous node is implicitly keyed
+            // we can continue to replace it without aborting even if it is not a
+            // yield.
+            if (key === null) {
+              return updateReturn(returnFiber, oldFiber, newChild, expirationTime);
+            } else {
+              return null;
+            }
+          }
 
-var createPortal$1 = function (children, containerInfo,
-// TODO: figure out the API for cross-renderer implementation.
-implementation) {
-  var key = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
+        case REACT_PORTAL_TYPE:
+          {
+            if (newChild.key === key) {
+              return updatePortal(returnFiber, oldFiber, newChild, expirationTime);
+            } else {
+              return null;
+            }
+          }
+      }
 
-  return {
-    // This tag allow us to uniquely identify this as a React Portal
-    $$typeof: REACT_PORTAL_TYPE$1,
-    key: key == null ? null : '' + key,
-    children: children,
-    containerInfo: containerInfo,
-    implementation: implementation
-  };
-};
+      if (isArray$1(newChild) || getIteratorFn(newChild)) {
+        if (key !== null) {
+          return null;
+        }
 
-/**
- * Verifies the object is a portal object.
- */
-var isPortal = function (object) {
-  return typeof object === 'object' && object !== null && object.$$typeof === REACT_PORTAL_TYPE$1;
-};
+        return updateFragment(returnFiber, oldFiber, newChild, expirationTime, null);
+      }
 
-var REACT_PORTAL_TYPE_1 = REACT_PORTAL_TYPE$1;
+      throwOnInvalidObjectType(returnFiber, newChild);
+    }
 
-var ReactPortal = {
-	createPortal: createPortal$1,
-	isPortal: isPortal,
-	REACT_PORTAL_TYPE: REACT_PORTAL_TYPE_1
-};
+    {
+      if (typeof newChild === 'function') {
+        warnOnFunctionType();
+      }
+    }
 
-var REACT_COROUTINE_TYPE = ReactCoroutine.REACT_COROUTINE_TYPE;
-var REACT_YIELD_TYPE = ReactCoroutine.REACT_YIELD_TYPE;
+    return null;
+  }
 
-var REACT_PORTAL_TYPE = ReactPortal.REACT_PORTAL_TYPE;
+  function updateFromMap(existingChildren, returnFiber, newIdx, newChild, expirationTime) {
+    if (typeof newChild === 'string' || typeof newChild === 'number') {
+      // Text nodes don't have keys, so we neither have to check the old nor
+      // new node for the key. If both are text nodes, they match.
+      var matchedFiber = existingChildren.get(newIdx) || null;
+      return updateTextNode(returnFiber, matchedFiber, '' + newChild, expirationTime);
+    }
 
+    if (typeof newChild === 'object' && newChild !== null) {
+      switch (newChild.$$typeof) {
+        case REACT_ELEMENT_TYPE:
+          {
+            var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
+            if (newChild.type === REACT_FRAGMENT_TYPE) {
+              return updateFragment(returnFiber, _matchedFiber, newChild.props.children, expirationTime, newChild.key);
+            }
+            return updateElement(returnFiber, _matchedFiber, newChild, expirationTime);
+          }
 
+        case REACT_CALL_TYPE:
+          {
+            var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
+            return updateCall(returnFiber, _matchedFiber2, newChild, expirationTime);
+          }
 
+        case REACT_RETURN_TYPE:
+          {
+            // Returns don't have keys, so we neither have to check the old nor
+            // new node for the key. If both are returns, they match.
+            var _matchedFiber3 = existingChildren.get(newIdx) || null;
+            return updateReturn(returnFiber, _matchedFiber3, newChild, expirationTime);
+          }
 
+        case REACT_PORTAL_TYPE:
+          {
+            var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
+            return updatePortal(returnFiber, _matchedFiber4, newChild, expirationTime);
+          }
+      }
 
+      if (isArray$1(newChild) || getIteratorFn(newChild)) {
+        var _matchedFiber5 = existingChildren.get(newIdx) || null;
+        return updateFragment(returnFiber, _matchedFiber5, newChild, expirationTime, null);
+      }
 
+      throwOnInvalidObjectType(returnFiber, newChild);
+    }
 
+    {
+      if (typeof newChild === 'function') {
+        warnOnFunctionType();
+      }
+    }
 
-{
-  var _require3$4 = ReactDebugCurrentFiber_1,
-      getCurrentFiberStackAddendum$5 = _require3$4.getCurrentFiberStackAddendum;
+    return null;
+  }
 
-  var warning$24 = require$$0;
-  var didWarnAboutMaps = false;
   /**
-   * Warn if there's no key explicitly set on dynamic arrays of children or
-   * object keys are not valid. This allows us to keep track of children between
-   * updates.
+   * Warns if there is a duplicate or missing key
    */
-  var ownerHasKeyUseWarning = {};
-
-  var warnForMissingKey = function (child) {
-    if (child === null || typeof child !== 'object') {
-      return;
-    }
-    if (!child._store || child._store.validated || child.key != null) {
-      return;
-    }
-    !(typeof child._store === 'object') ? invariant(false, 'React Component in warnForMissingKey should have a _store. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-    child._store.validated = true;
-
-    var currentComponentErrorInfo = 'Each child in an array or iterator should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.' + (getCurrentFiberStackAddendum$5() || '');
-    if (ownerHasKeyUseWarning[currentComponentErrorInfo]) {
-      return;
+  function warnOnInvalidKey(child, knownKeys) {
+    {
+      if (typeof child !== 'object' || child === null) {
+        return knownKeys;
+      }
+      switch (child.$$typeof) {
+        case REACT_ELEMENT_TYPE:
+        case REACT_CALL_TYPE:
+        case REACT_PORTAL_TYPE:
+          warnForMissingKey(child);
+          var key = child.key;
+          if (typeof key !== 'string') {
+            break;
+          }
+          if (knownKeys === null) {
+            knownKeys = new Set();
+            knownKeys.add(key);
+            break;
+          }
+          if (!knownKeys.has(key)) {
+            knownKeys.add(key);
+            break;
+          }
+          warning(false, 'Encountered two children with the same key, `%s`. ' + 'Keys should be unique so that components maintain their identity ' + 'across updates. Non-unique keys may cause children to be ' + 'duplicated and/or omitted — the behavior is unsupported and ' + 'could change in a future version.%s', key, getCurrentFiberStackAddendum$1());
+          break;
+        default:
+          break;
+      }
     }
-    ownerHasKeyUseWarning[currentComponentErrorInfo] = true;
+    return knownKeys;
+  }
 
-    warning$24(false, 'Each child in an array or iterator should have a unique ' + '"key" prop. See https://fb.me/react-warning-keys for ' + 'more information.%s', getCurrentFiberStackAddendum$5());
-  };
-}
+  function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, expirationTime) {
+    // This algorithm can't optimize by searching from boths ends since we
+    // don't have backpointers on fibers. I'm trying to see how far we can get
+    // with that model. If it ends up not being worth the tradeoffs, we can
+    // add it later.
 
-var createWorkInProgress$2 = ReactFiber.createWorkInProgress;
-var createFiberFromElement$1 = ReactFiber.createFiberFromElement;
-var createFiberFromFragment$1 = ReactFiber.createFiberFromFragment;
-var createFiberFromText$1 = ReactFiber.createFiberFromText;
-var createFiberFromCoroutine$1 = ReactFiber.createFiberFromCoroutine;
-var createFiberFromYield$1 = ReactFiber.createFiberFromYield;
-var createFiberFromPortal$1 = ReactFiber.createFiberFromPortal;
+    // Even with a two ended optimization, we'd want to optimize for the case
+    // where there are few changes and brute force the comparison instead of
+    // going for the Map. It'd like to explore hitting that path first in
+    // forward-only mode and only go for the Map once we notice that we need
+    // lots of look ahead. This doesn't handle reversal as well as two ended
+    // search but that's unusual. Besides, for the two ended optimization to
+    // work on Iterables, we'd need to copy the whole set.
 
+    // In this first iteration, we'll just live with hitting the bad case
+    // (adding everything to a Map) in for every insert/move.
 
-var isArray = Array.isArray;
+    // If you change this code, also update reconcileChildrenIterator() which
+    // uses the same algorithm.
 
-var FunctionalComponent$2 = ReactTypeOfWork.FunctionalComponent;
-var ClassComponent$7 = ReactTypeOfWork.ClassComponent;
-var HostText$5 = ReactTypeOfWork.HostText;
-var HostPortal$5 = ReactTypeOfWork.HostPortal;
-var CoroutineComponent$2 = ReactTypeOfWork.CoroutineComponent;
-var YieldComponent$3 = ReactTypeOfWork.YieldComponent;
-var Fragment$3 = ReactTypeOfWork.Fragment;
-var NoEffect$2 = ReactTypeOfSideEffect.NoEffect;
-var Placement$3 = ReactTypeOfSideEffect.Placement;
-var Deletion$1 = ReactTypeOfSideEffect.Deletion;
-
-
-var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
-var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.
-// The Symbol used to tag the ReactElement type. If there is no native Symbol
-// nor polyfill, then a plain number is used for performance.
-var REACT_ELEMENT_TYPE = typeof Symbol === 'function' && Symbol['for'] && Symbol['for']('react.element') || 0xeac7;
+    {
+      // First, validate keys.
+      var knownKeys = null;
+      for (var i = 0; i < newChildren.length; i++) {
+        var child = newChildren[i];
+        knownKeys = warnOnInvalidKey(child, knownKeys);
+      }
+    }
 
-function getIteratorFn(maybeIterable) {
-  if (maybeIterable === null || typeof maybeIterable === 'undefined') {
-    return null;
-  }
-  var iteratorFn = ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL];
-  if (typeof iteratorFn === 'function') {
-    return iteratorFn;
-  }
-  return null;
-}
+    var resultingFirstChild = null;
+    var previousNewFiber = null;
 
-function coerceRef(current, element) {
-  var mixedRef = element.ref;
-  if (mixedRef !== null && typeof mixedRef !== 'function') {
-    if (element._owner) {
-      var owner = element._owner;
-      var inst = void 0;
-      if (owner) {
-        if (typeof owner.tag === 'number') {
-          var ownerFiber = owner;
-          !(ownerFiber.tag === ClassComponent$7) ? invariant(false, 'Stateless function components cannot have refs.') : void 0;
-          inst = ownerFiber.stateNode;
-        } else {
-          // Stack
-          inst = owner.getPublicInstance();
-        }
+    var oldFiber = currentFirstChild;
+    var lastPlacedIndex = 0;
+    var newIdx = 0;
+    var nextOldFiber = null;
+    for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {
+      if (oldFiber.index > newIdx) {
+        nextOldFiber = oldFiber;
+        oldFiber = null;
+      } else {
+        nextOldFiber = oldFiber.sibling;
       }
-      !inst ? invariant(false, 'Missing owner for string ref %s. This error is likely caused by a bug in React. Please file an issue.', mixedRef) : void 0;
-      var stringRef = '' + mixedRef;
-      // Check if previous string ref matches new string ref
-      if (current !== null && current.ref !== null && current.ref._stringRef === stringRef) {
-        return current.ref;
+      var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], expirationTime);
+      if (newFiber === null) {
+        // TODO: This breaks on empty slots like null children. That's
+        // unfortunate because it triggers the slow path all the time. We need
+        // a better way to communicate whether this was a miss or null,
+        // boolean, undefined, etc.
+        if (oldFiber === null) {
+          oldFiber = nextOldFiber;
+        }
+        break;
       }
-      var ref = function (value) {
-        var refs = inst.refs === emptyObject ? inst.refs = {} : inst.refs;
-        if (value === null) {
-          delete refs[stringRef];
-        } else {
-          refs[stringRef] = value;
+      if (shouldTrackSideEffects) {
+        if (oldFiber && newFiber.alternate === null) {
+          // We matched the slot, but we didn't reuse the existing fiber, so we
+          // need to delete the existing child.
+          deleteChild(returnFiber, oldFiber);
         }
-      };
-      ref._stringRef = stringRef;
-      return ref;
-    } else {
-      !(typeof mixedRef === 'string') ? invariant(false, 'Expected ref to be a function or a string.') : void 0;
-      !element._owner ? invariant(false, 'Element ref was specified as a string (%s) but no owner was set. You may have multiple copies of React loaded. (details: https://fb.me/react-refs-must-have-owner).', mixedRef) : void 0;
+      }
+      lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
+      if (previousNewFiber === null) {
+        // TODO: Move out of the loop. This only happens for the first run.
+        resultingFirstChild = newFiber;
+      } else {
+        // TODO: Defer siblings if we're not at the right index for this slot.
+        // I.e. if we had null values before, then we want to defer this
+        // for each null value. However, we also don't want to call updateSlot
+        // with the previous one.
+        previousNewFiber.sibling = newFiber;
+      }
+      previousNewFiber = newFiber;
+      oldFiber = nextOldFiber;
     }
-  }
-  return mixedRef;
-}
 
-function throwOnInvalidObjectType(returnFiber, newChild) {
-  if (returnFiber.type !== 'textarea') {
-    var addendum = '';
-    {
-      addendum = ' If you meant to render a collection of children, use an array ' + 'instead.' + (getCurrentFiberStackAddendum$5() || '');
+    if (newIdx === newChildren.length) {
+      // We've reached the end of the new children. We can delete the rest.
+      deleteRemainingChildren(returnFiber, oldFiber);
+      return resultingFirstChild;
     }
-    invariant(false, 'Objects are not valid as a React child (found: %s).%s', Object.prototype.toString.call(newChild) === '[object Object]' ? 'object with keys {' + Object.keys(newChild).join(', ') + '}' : newChild, addendum);
-  }
-}
-
-function warnOnFunctionType() {
-  warning$24(false, 'Functions are not valid as a React child. This may happen if ' + 'you return a Component instead of <Component /> from render. ' + 'Or maybe you meant to call this function rather than return it.%s', getCurrentFiberStackAddendum$5() || '');
-}
 
-// This wrapper function exists because I expect to clone the code in each path
-// to be able to optimize each path individually by branching early. This needs
-// a compiler or we can do it manually. Helpers that don't need this branching
-// live outside of this function.
-function ChildReconciler(shouldClone, shouldTrackSideEffects) {
-  function deleteChild(returnFiber, childToDelete) {
-    if (!shouldTrackSideEffects) {
-      // Noop.
-      return;
-    }
-    if (!shouldClone) {
-      // When we're reconciling in place we have a work in progress copy. We
-      // actually want the current copy. If there is no current copy, then we
-      // don't need to track deletion side-effects.
-      if (childToDelete.alternate === null) {
-        return;
+    if (oldFiber === null) {
+      // If we don't have any more existing children we can choose a fast path
+      // since the rest will all be insertions.
+      for (; newIdx < newChildren.length; newIdx++) {
+        var _newFiber = createChild(returnFiber, newChildren[newIdx], expirationTime);
+        if (!_newFiber) {
+          continue;
+        }
+        lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);
+        if (previousNewFiber === null) {
+          // TODO: Move out of the loop. This only happens for the first run.
+          resultingFirstChild = _newFiber;
+        } else {
+          previousNewFiber.sibling = _newFiber;
+        }
+        previousNewFiber = _newFiber;
       }
-      childToDelete = childToDelete.alternate;
-    }
-    // Deletions are added in reversed order so we add it to the front.
-    // At this point, the return fiber's effect list is empty except for
-    // deletions, so we can just append the deletion to the list. The remaining
-    // effects aren't added until the complete phase. Once we implement
-    // resuming, this may not be true.
-    var last = returnFiber.lastEffect;
-    if (last !== null) {
-      last.nextEffect = childToDelete;
-      returnFiber.lastEffect = childToDelete;
-    } else {
-      returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
+      return resultingFirstChild;
     }
-    childToDelete.nextEffect = null;
-    childToDelete.effectTag = Deletion$1;
-  }
 
-  function deleteRemainingChildren(returnFiber, currentFirstChild) {
-    if (!shouldTrackSideEffects) {
-      // Noop.
-      return null;
+    // Add all children to a key map for quick lookups.
+    var existingChildren = mapRemainingChildren(returnFiber, oldFiber);
+
+    // Keep scanning and use the map to restore deleted items as moves.
+    for (; newIdx < newChildren.length; newIdx++) {
+      var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], expirationTime);
+      if (_newFiber2) {
+        if (shouldTrackSideEffects) {
+          if (_newFiber2.alternate !== null) {
+            // The new fiber is a work in progress, but if there exists a
+            // current, that means that we reused the fiber. We need to delete
+            // it from the child list so that we don't add it to the deletion
+            // list.
+            existingChildren['delete'](_newFiber2.key === null ? newIdx : _newFiber2.key);
+          }
+        }
+        lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);
+        if (previousNewFiber === null) {
+          resultingFirstChild = _newFiber2;
+        } else {
+          previousNewFiber.sibling = _newFiber2;
+        }
+        previousNewFiber = _newFiber2;
+      }
     }
 
-    // TODO: For the shouldClone case, this could be micro-optimized a bit by
-    // assuming that after the first child we've already added everything.
-    var childToDelete = currentFirstChild;
-    while (childToDelete !== null) {
-      deleteChild(returnFiber, childToDelete);
-      childToDelete = childToDelete.sibling;
+    if (shouldTrackSideEffects) {
+      // Any existing children that weren't consumed above were deleted. We need
+      // to add them to the deletion list.
+      existingChildren.forEach(function (child) {
+        return deleteChild(returnFiber, child);
+      });
     }
-    return null;
+
+    return resultingFirstChild;
   }
 
-  function mapRemainingChildren(returnFiber, currentFirstChild) {
-    // Add the remaining children to a temporary map so that we can find them by
-    // keys quickly. Implicit (null) keys get added to this set with their index
-    var existingChildren = new Map();
+  function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, expirationTime) {
+    // This is the same implementation as reconcileChildrenArray(),
+    // but using the iterator instead.
 
-    var existingChild = currentFirstChild;
-    while (existingChild !== null) {
-      if (existingChild.key !== null) {
-        existingChildren.set(existingChild.key, existingChild);
-      } else {
-        existingChildren.set(existingChild.index, existingChild);
+    var iteratorFn = getIteratorFn(newChildrenIterable);
+    !(typeof iteratorFn === 'function') ? invariant(false, 'An object is not an iterable. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+
+    {
+      // Warn about using Maps as children
+      if (typeof newChildrenIterable.entries === 'function') {
+        var possibleMap = newChildrenIterable;
+        if (possibleMap.entries === iteratorFn) {
+          warning(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', getCurrentFiberStackAddendum$1());
+          didWarnAboutMaps = true;
+        }
       }
-      existingChild = existingChild.sibling;
-    }
-    return existingChildren;
-  }
 
-  function useFiber(fiber, priority) {
-    // We currently set sibling to null and index to 0 here because it is easy
-    // to forget to do before returning it. E.g. for the single child case.
-    if (shouldClone) {
-      var clone = createWorkInProgress$2(fiber, priority);
-      clone.index = 0;
-      clone.sibling = null;
-      return clone;
-    } else {
-      // We override the pending priority even if it is higher, because if
-      // we're reconciling at a lower priority that means that this was
-      // down-prioritized.
-      fiber.pendingWorkPriority = priority;
-      fiber.effectTag = NoEffect$2;
-      fiber.index = 0;
-      fiber.sibling = null;
-      return fiber;
+      // First, validate keys.
+      // We'll get a different iterator later for the main pass.
+      var _newChildren = iteratorFn.call(newChildrenIterable);
+      if (_newChildren) {
+        var knownKeys = null;
+        var _step = _newChildren.next();
+        for (; !_step.done; _step = _newChildren.next()) {
+          var child = _step.value;
+          knownKeys = warnOnInvalidKey(child, knownKeys);
+        }
+      }
     }
-  }
 
-  function placeChild(newFiber, lastPlacedIndex, newIndex) {
-    newFiber.index = newIndex;
-    if (!shouldTrackSideEffects) {
-      // Noop.
-      return lastPlacedIndex;
-    }
-    var current = newFiber.alternate;
-    if (current !== null) {
-      var oldIndex = current.index;
-      if (oldIndex < lastPlacedIndex) {
-        // This is a move.
-        newFiber.effectTag = Placement$3;
-        return lastPlacedIndex;
+    var newChildren = iteratorFn.call(newChildrenIterable);
+    !(newChildren != null) ? invariant(false, 'An iterable object provided no iterator.') : void 0;
+
+    var resultingFirstChild = null;
+    var previousNewFiber = null;
+
+    var oldFiber = currentFirstChild;
+    var lastPlacedIndex = 0;
+    var newIdx = 0;
+    var nextOldFiber = null;
+
+    var step = newChildren.next();
+    for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {
+      if (oldFiber.index > newIdx) {
+        nextOldFiber = oldFiber;
+        oldFiber = null;
       } else {
-        // This item can stay in place.
-        return oldIndex;
+        nextOldFiber = oldFiber.sibling;
       }
-    } else {
-      // This is an insertion.
-      newFiber.effectTag = Placement$3;
-      return lastPlacedIndex;
-    }
-  }
-
-  function placeSingleChild(newFiber) {
-    // This is simpler for the single child case. We only need to do a
-    // placement for inserting new children.
-    if (shouldTrackSideEffects && newFiber.alternate === null) {
-      newFiber.effectTag = Placement$3;
+      var newFiber = updateSlot(returnFiber, oldFiber, step.value, expirationTime);
+      if (newFiber === null) {
+        // TODO: This breaks on empty slots like null children. That's
+        // unfortunate because it triggers the slow path all the time. We need
+        // a better way to communicate whether this was a miss or null,
+        // boolean, undefined, etc.
+        if (!oldFiber) {
+          oldFiber = nextOldFiber;
+        }
+        break;
+      }
+      if (shouldTrackSideEffects) {
+        if (oldFiber && newFiber.alternate === null) {
+          // We matched the slot, but we didn't reuse the existing fiber, so we
+          // need to delete the existing child.
+          deleteChild(returnFiber, oldFiber);
+        }
+      }
+      lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
+      if (previousNewFiber === null) {
+        // TODO: Move out of the loop. This only happens for the first run.
+        resultingFirstChild = newFiber;
+      } else {
+        // TODO: Defer siblings if we're not at the right index for this slot.
+        // I.e. if we had null values before, then we want to defer this
+        // for each null value. However, we also don't want to call updateSlot
+        // with the previous one.
+        previousNewFiber.sibling = newFiber;
+      }
+      previousNewFiber = newFiber;
+      oldFiber = nextOldFiber;
     }
-    return newFiber;
-  }
 
-  function updateTextNode(returnFiber, current, textContent, priority) {
-    if (current === null || current.tag !== HostText$5) {
-      // Insert
-      var created = createFiberFromText$1(textContent, returnFiber.internalContextTag, priority);
-      created['return'] = returnFiber;
-      return created;
-    } else {
-      // Update
-      var existing = useFiber(current, priority);
-      existing.pendingProps = textContent;
-      existing['return'] = returnFiber;
-      return existing;
+    if (step.done) {
+      // We've reached the end of the new children. We can delete the rest.
+      deleteRemainingChildren(returnFiber, oldFiber);
+      return resultingFirstChild;
     }
-  }
 
-  function updateElement(returnFiber, current, element, priority) {
-    if (current === null || current.type !== element.type) {
-      // Insert
-      var created = createFiberFromElement$1(element, returnFiber.internalContextTag, priority);
-      created.ref = coerceRef(current, element);
-      created['return'] = returnFiber;
-      return created;
-    } else {
-      // Move based on index
-      var existing = useFiber(current, priority);
-      existing.ref = coerceRef(current, element);
-      existing.pendingProps = element.props;
-      existing['return'] = returnFiber;
-      {
-        existing._debugSource = element._source;
-        existing._debugOwner = element._owner;
+    if (oldFiber === null) {
+      // If we don't have any more existing children we can choose a fast path
+      // since the rest will all be insertions.
+      for (; !step.done; newIdx++, step = newChildren.next()) {
+        var _newFiber3 = createChild(returnFiber, step.value, expirationTime);
+        if (_newFiber3 === null) {
+          continue;
+        }
+        lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);
+        if (previousNewFiber === null) {
+          // TODO: Move out of the loop. This only happens for the first run.
+          resultingFirstChild = _newFiber3;
+        } else {
+          previousNewFiber.sibling = _newFiber3;
+        }
+        previousNewFiber = _newFiber3;
       }
-      return existing;
+      return resultingFirstChild;
     }
-  }
 
-  function updateCoroutine(returnFiber, current, coroutine, priority) {
-    // TODO: Should this also compare handler to determine whether to reuse?
-    if (current === null || current.tag !== CoroutineComponent$2) {
-      // Insert
-      var created = createFiberFromCoroutine$1(coroutine, returnFiber.internalContextTag, priority);
-      created['return'] = returnFiber;
-      return created;
-    } else {
-      // Move based on index
-      var existing = useFiber(current, priority);
-      existing.pendingProps = coroutine;
-      existing['return'] = returnFiber;
-      return existing;
+    // Add all children to a key map for quick lookups.
+    var existingChildren = mapRemainingChildren(returnFiber, oldFiber);
+
+    // Keep scanning and use the map to restore deleted items as moves.
+    for (; !step.done; newIdx++, step = newChildren.next()) {
+      var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, expirationTime);
+      if (_newFiber4 !== null) {
+        if (shouldTrackSideEffects) {
+          if (_newFiber4.alternate !== null) {
+            // The new fiber is a work in progress, but if there exists a
+            // current, that means that we reused the fiber. We need to delete
+            // it from the child list so that we don't add it to the deletion
+            // list.
+            existingChildren['delete'](_newFiber4.key === null ? newIdx : _newFiber4.key);
+          }
+        }
+        lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);
+        if (previousNewFiber === null) {
+          resultingFirstChild = _newFiber4;
+        } else {
+          previousNewFiber.sibling = _newFiber4;
+        }
+        previousNewFiber = _newFiber4;
+      }
     }
-  }
 
-  function updateYield(returnFiber, current, yieldNode, priority) {
-    if (current === null || current.tag !== YieldComponent$3) {
-      // Insert
-      var created = createFiberFromYield$1(yieldNode, returnFiber.internalContextTag, priority);
-      created.type = yieldNode.value;
-      created['return'] = returnFiber;
-      return created;
-    } else {
-      // Move based on index
-      var existing = useFiber(current, priority);
-      existing.type = yieldNode.value;
-      existing['return'] = returnFiber;
-      return existing;
+    if (shouldTrackSideEffects) {
+      // Any existing children that weren't consumed above were deleted. We need
+      // to add them to the deletion list.
+      existingChildren.forEach(function (child) {
+        return deleteChild(returnFiber, child);
+      });
     }
+
+    return resultingFirstChild;
   }
 
-  function updatePortal(returnFiber, current, portal, priority) {
-    if (current === null || current.tag !== HostPortal$5 || current.stateNode.containerInfo !== portal.containerInfo || current.stateNode.implementation !== portal.implementation) {
-      // Insert
-      var created = createFiberFromPortal$1(portal, returnFiber.internalContextTag, priority);
-      created['return'] = returnFiber;
-      return created;
-    } else {
-      // Update
-      var existing = useFiber(current, priority);
-      existing.pendingProps = portal.children || [];
+  function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, expirationTime) {
+    // There's no need to check for keys on text nodes since we don't have a
+    // way to define them.
+    if (currentFirstChild !== null && currentFirstChild.tag === HostText) {
+      // We already have an existing node so let's just update it and delete
+      // the rest.
+      deleteRemainingChildren(returnFiber, currentFirstChild.sibling);
+      var existing = useFiber(currentFirstChild, textContent, expirationTime);
       existing['return'] = returnFiber;
       return existing;
     }
+    // The existing first child is not a text node so we need to create one
+    // and delete the existing ones.
+    deleteRemainingChildren(returnFiber, currentFirstChild);
+    var created = createFiberFromText(textContent, returnFiber.internalContextTag, expirationTime);
+    created['return'] = returnFiber;
+    return created;
   }
 
-  function updateFragment(returnFiber, current, fragment, priority) {
-    if (current === null || current.tag !== Fragment$3) {
-      // Insert
-      var created = createFiberFromFragment$1(fragment, returnFiber.internalContextTag, priority);
+  function reconcileSingleElement(returnFiber, currentFirstChild, element, expirationTime) {
+    var key = element.key;
+    var child = currentFirstChild;
+    while (child !== null) {
+      // TODO: If key === null and child.key === null, then this only applies to
+      // the first item in the list.
+      if (child.key === key) {
+        if (child.tag === Fragment ? element.type === REACT_FRAGMENT_TYPE : child.type === element.type) {
+          deleteRemainingChildren(returnFiber, child.sibling);
+          var existing = useFiber(child, element.type === REACT_FRAGMENT_TYPE ? element.props.children : element.props, expirationTime);
+          existing.ref = coerceRef(child, element);
+          existing['return'] = returnFiber;
+          {
+            existing._debugSource = element._source;
+            existing._debugOwner = element._owner;
+          }
+          return existing;
+        } else {
+          deleteRemainingChildren(returnFiber, child);
+          break;
+        }
+      } else {
+        deleteChild(returnFiber, child);
+      }
+      child = child.sibling;
+    }
+
+    if (element.type === REACT_FRAGMENT_TYPE) {
+      var created = createFiberFromFragment(element.props.children, returnFiber.internalContextTag, expirationTime, element.key);
       created['return'] = returnFiber;
       return created;
     } else {
-      // Update
-      var existing = useFiber(current, priority);
-      existing.pendingProps = fragment;
-      existing['return'] = returnFiber;
-      return existing;
+      var _created7 = createFiberFromElement(element, returnFiber.internalContextTag, expirationTime);
+      _created7.ref = coerceRef(currentFirstChild, element);
+      _created7['return'] = returnFiber;
+      return _created7;
     }
   }
 
-  function createChild(returnFiber, newChild, priority) {
-    if (typeof newChild === 'string' || typeof newChild === 'number') {
-      // Text nodes doesn't have keys. If the previous node is implicitly keyed
-      // we can continue to replace it without aborting even if it is not a text
-      // node.
-      var created = createFiberFromText$1('' + newChild, returnFiber.internalContextTag, priority);
-      created['return'] = returnFiber;
-      return created;
+  function reconcileSingleCall(returnFiber, currentFirstChild, call, expirationTime) {
+    var key = call.key;
+    var child = currentFirstChild;
+    while (child !== null) {
+      // TODO: If key === null and child.key === null, then this only applies to
+      // the first item in the list.
+      if (child.key === key) {
+        if (child.tag === CallComponent) {
+          deleteRemainingChildren(returnFiber, child.sibling);
+          var existing = useFiber(child, call, expirationTime);
+          existing['return'] = returnFiber;
+          return existing;
+        } else {
+          deleteRemainingChildren(returnFiber, child);
+          break;
+        }
+      } else {
+        deleteChild(returnFiber, child);
+      }
+      child = child.sibling;
     }
 
-    if (typeof newChild === 'object' && newChild !== null) {
-      switch (newChild.$$typeof) {
-        case REACT_ELEMENT_TYPE:
-          {
-            var _created = createFiberFromElement$1(newChild, returnFiber.internalContextTag, priority);
-            _created.ref = coerceRef(null, newChild);
-            _created['return'] = returnFiber;
-            return _created;
-          }
-
-        case REACT_COROUTINE_TYPE:
-          {
-            var _created2 = createFiberFromCoroutine$1(newChild, returnFiber.internalContextTag, priority);
-            _created2['return'] = returnFiber;
-            return _created2;
-          }
-
-        case REACT_YIELD_TYPE:
-          {
-            var _created3 = createFiberFromYield$1(newChild, returnFiber.internalContextTag, priority);
-            _created3.type = newChild.value;
-            _created3['return'] = returnFiber;
-            return _created3;
-          }
-
-        case REACT_PORTAL_TYPE:
-          {
-            var _created4 = createFiberFromPortal$1(newChild, returnFiber.internalContextTag, priority);
-            _created4['return'] = returnFiber;
-            return _created4;
-          }
-      }
+    var created = createFiberFromCall(call, returnFiber.internalContextTag, expirationTime);
+    created['return'] = returnFiber;
+    return created;
+  }
 
-      if (isArray(newChild) || getIteratorFn(newChild)) {
-        var _created5 = createFiberFromFragment$1(newChild, returnFiber.internalContextTag, priority);
-        _created5['return'] = returnFiber;
-        return _created5;
+  function reconcileSingleReturn(returnFiber, currentFirstChild, returnNode, expirationTime) {
+    // There's no need to check for keys on yields since they're stateless.
+    var child = currentFirstChild;
+    if (child !== null) {
+      if (child.tag === ReturnComponent) {
+        deleteRemainingChildren(returnFiber, child.sibling);
+        var existing = useFiber(child, null, expirationTime);
+        existing.type = returnNode.value;
+        existing['return'] = returnFiber;
+        return existing;
+      } else {
+        deleteRemainingChildren(returnFiber, child);
       }
-
-      throwOnInvalidObjectType(returnFiber, newChild);
     }
 
-    {
-      if (typeof newChild === 'function') {
-        warnOnFunctionType();
+    var created = createFiberFromReturn(returnNode, returnFiber.internalContextTag, expirationTime);
+    created.type = returnNode.value;
+    created['return'] = returnFiber;
+    return created;
+  }
+
+  function reconcileSinglePortal(returnFiber, currentFirstChild, portal, expirationTime) {
+    var key = portal.key;
+    var child = currentFirstChild;
+    while (child !== null) {
+      // TODO: If key === null and child.key === null, then this only applies to
+      // the first item in the list.
+      if (child.key === key) {
+        if (child.tag === HostPortal && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {
+          deleteRemainingChildren(returnFiber, child.sibling);
+          var existing = useFiber(child, portal.children || [], expirationTime);
+          existing['return'] = returnFiber;
+          return existing;
+        } else {
+          deleteRemainingChildren(returnFiber, child);
+          break;
+        }
+      } else {
+        deleteChild(returnFiber, child);
       }
+      child = child.sibling;
     }
 
-    return null;
+    var created = createFiberFromPortal(portal, returnFiber.internalContextTag, expirationTime);
+    created['return'] = returnFiber;
+    return created;
   }
 
-  function updateSlot(returnFiber, oldFiber, newChild, priority) {
-    // Update the fiber if the keys match, otherwise return null.
-
-    var key = oldFiber !== null ? oldFiber.key : null;
+  // This API will tag the children with the side-effect of the reconciliation
+  // itself. They will be added to the side-effect list as we pass through the
+  // children and the parent.
+  function reconcileChildFibers(returnFiber, currentFirstChild, newChild, expirationTime) {
+    // This function is not recursive.
+    // If the top level item is an array, we treat it as a set of children,
+    // not as a fragment. Nested arrays on the other hand will be treated as
+    // fragment nodes. Recursion happens at the normal flow.
 
-    if (typeof newChild === 'string' || typeof newChild === 'number') {
-      // Text nodes doesn't have keys. If the previous node is implicitly keyed
-      // we can continue to replace it without aborting even if it is not a text
-      // node.
-      if (key !== null) {
-        return null;
-      }
-      return updateTextNode(returnFiber, oldFiber, '' + newChild, priority);
+    // Handle top level unkeyed fragments as if they were arrays.
+    // This leads to an ambiguity between <>{[...]}</> and <>...</>.
+    // We treat the ambiguous cases above the same.
+    if (typeof newChild === 'object' && newChild !== null && newChild.type === REACT_FRAGMENT_TYPE && newChild.key === null) {
+      newChild = newChild.props.children;
     }
 
-    if (typeof newChild === 'object' && newChild !== null) {
+    // Handle object types
+    var isObject = typeof newChild === 'object' && newChild !== null;
+
+    if (isObject) {
       switch (newChild.$$typeof) {
         case REACT_ELEMENT_TYPE:
-          {
-            if (newChild.key === key) {
-              return updateElement(returnFiber, oldFiber, newChild, priority);
-            } else {
-              return null;
-            }
-          }
-
-        case REACT_COROUTINE_TYPE:
-          {
-            if (newChild.key === key) {
-              return updateCoroutine(returnFiber, oldFiber, newChild, priority);
-            } else {
-              return null;
-            }
-          }
-
-        case REACT_YIELD_TYPE:
-          {
-            // Yields doesn't have keys. If the previous node is implicitly keyed
-            // we can continue to replace it without aborting even if it is not a
-            // yield.
-            if (key === null) {
-              return updateYield(returnFiber, oldFiber, newChild, priority);
-            } else {
-              return null;
-            }
-          }
+          return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, expirationTime));
 
+        case REACT_CALL_TYPE:
+          return placeSingleChild(reconcileSingleCall(returnFiber, currentFirstChild, newChild, expirationTime));
+        case REACT_RETURN_TYPE:
+          return placeSingleChild(reconcileSingleReturn(returnFiber, currentFirstChild, newChild, expirationTime));
         case REACT_PORTAL_TYPE:
-          {
-            if (newChild.key === key) {
-              return updatePortal(returnFiber, oldFiber, newChild, priority);
-            } else {
-              return null;
-            }
-          }
+          return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, expirationTime));
       }
+    }
 
-      if (isArray(newChild) || getIteratorFn(newChild)) {
-        // Fragments doesn't have keys so if the previous key is implicit we can
-        // update it.
-        if (key !== null) {
-          return null;
-        }
-        return updateFragment(returnFiber, oldFiber, newChild, priority);
-      }
+    if (typeof newChild === 'string' || typeof newChild === 'number') {
+      return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, expirationTime));
+    }
+
+    if (isArray$1(newChild)) {
+      return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, expirationTime);
+    }
+
+    if (getIteratorFn(newChild)) {
+      return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, expirationTime);
+    }
 
+    if (isObject) {
       throwOnInvalidObjectType(returnFiber, newChild);
     }
 
@@ -13285,9049 +11631,7817 @@ function ChildReconciler(shouldClone, shouldTrackSideEffects) {
         warnOnFunctionType();
       }
     }
-
-    return null;
-  }
-
-  function updateFromMap(existingChildren, returnFiber, newIdx, newChild, priority) {
-    if (typeof newChild === 'string' || typeof newChild === 'number') {
-      // Text nodes doesn't have keys, so we neither have to check the old nor
-      // new node for the key. If both are text nodes, they match.
-      var matchedFiber = existingChildren.get(newIdx) || null;
-      return updateTextNode(returnFiber, matchedFiber, '' + newChild, priority);
-    }
-
-    if (typeof newChild === 'object' && newChild !== null) {
-      switch (newChild.$$typeof) {
-        case REACT_ELEMENT_TYPE:
+    if (typeof newChild === 'undefined') {
+      // If the new child is undefined, and the return fiber is a composite
+      // component, throw an error. If Fiber return types are disabled,
+      // we already threw above.
+      switch (returnFiber.tag) {
+        case ClassComponent:
           {
-            var _matchedFiber = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
-            return updateElement(returnFiber, _matchedFiber, newChild, priority);
+            {
+              var instance = returnFiber.stateNode;
+              if (instance.render._isMockFunction) {
+                // We allow auto-mocks to proceed as if they're returning null.
+                break;
+              }
+            }
           }
-
-        case REACT_COROUTINE_TYPE:
+        // Intentionally fall through to the next case, which handles both
+        // functions and classes
+        // eslint-disable-next-lined no-fallthrough
+        case FunctionalComponent:
           {
-            var _matchedFiber2 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
-            return updateCoroutine(returnFiber, _matchedFiber2, newChild, priority);
+            var Component = returnFiber.type;
+            invariant(false, '%s(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null.', Component.displayName || Component.name || 'Component');
           }
+      }
+    }
 
-        case REACT_YIELD_TYPE:
-          {
-            // Yields doesn't have keys, so we neither have to check the old nor
-            // new node for the key. If both are yields, they match.
-            var _matchedFiber3 = existingChildren.get(newIdx) || null;
-            return updateYield(returnFiber, _matchedFiber3, newChild, priority);
-          }
+    // Remaining cases are all treated as empty.
+    return deleteRemainingChildren(returnFiber, currentFirstChild);
+  }
 
-        case REACT_PORTAL_TYPE:
-          {
-            var _matchedFiber4 = existingChildren.get(newChild.key === null ? newIdx : newChild.key) || null;
-            return updatePortal(returnFiber, _matchedFiber4, newChild, priority);
-          }
-      }
+  return reconcileChildFibers;
+}
 
-      if (isArray(newChild) || getIteratorFn(newChild)) {
-        var _matchedFiber5 = existingChildren.get(newIdx) || null;
-        return updateFragment(returnFiber, _matchedFiber5, newChild, priority);
-      }
+var reconcileChildFibers = ChildReconciler(true);
+var mountChildFibers = ChildReconciler(false);
 
-      throwOnInvalidObjectType(returnFiber, newChild);
+function cloneChildFibers(current, workInProgress) {
+  !(current === null || workInProgress.child === current.child) ? invariant(false, 'Resuming work not yet implemented.') : void 0;
+
+  if (workInProgress.child === null) {
+    return;
+  }
+
+  var currentChild = workInProgress.child;
+  var newChild = createWorkInProgress(currentChild, currentChild.pendingProps, currentChild.expirationTime);
+  workInProgress.child = newChild;
+
+  newChild['return'] = workInProgress;
+  while (currentChild.sibling !== null) {
+    currentChild = currentChild.sibling;
+    newChild = newChild.sibling = createWorkInProgress(currentChild, currentChild.pendingProps, currentChild.expirationTime);
+    newChild['return'] = workInProgress;
+  }
+  newChild.sibling = null;
+}
+
+{
+  var warnedAboutStatelessRefs = {};
+}
+
+var ReactFiberBeginWork = function (config, hostContext, hydrationContext, scheduleWork, computeExpirationForFiber) {
+  var shouldSetTextContent = config.shouldSetTextContent,
+      useSyncScheduling = config.useSyncScheduling,
+      shouldDeprioritizeSubtree = config.shouldDeprioritizeSubtree;
+  var pushHostContext = hostContext.pushHostContext,
+      pushHostContainer = hostContext.pushHostContainer;
+  var enterHydrationState = hydrationContext.enterHydrationState,
+      resetHydrationState = hydrationContext.resetHydrationState,
+      tryToClaimNextHydratableInstance = hydrationContext.tryToClaimNextHydratableInstance;
+
+  var _ReactFiberClassCompo = ReactFiberClassComponent(scheduleWork, computeExpirationForFiber, memoizeProps, memoizeState),
+      adoptClassInstance = _ReactFiberClassCompo.adoptClassInstance,
+      constructClassInstance = _ReactFiberClassCompo.constructClassInstance,
+      mountClassInstance = _ReactFiberClassCompo.mountClassInstance,
+      updateClassInstance = _ReactFiberClassCompo.updateClassInstance;
+
+  // TODO: Remove this and use reconcileChildrenAtExpirationTime directly.
+
+
+  function reconcileChildren(current, workInProgress, nextChildren) {
+    reconcileChildrenAtExpirationTime(current, workInProgress, nextChildren, workInProgress.expirationTime);
+  }
+
+  function reconcileChildrenAtExpirationTime(current, workInProgress, nextChildren, renderExpirationTime) {
+    if (current === null) {
+      // If this is a fresh new component that hasn't been rendered yet, we
+      // won't update its child set by applying minimal side-effects. Instead,
+      // we will add them all to the child before it gets rendered. That means
+      // we can optimize this reconciliation pass by not tracking side-effects.
+      workInProgress.child = mountChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
+    } else {
+      // If the current child is the same as the work in progress, it means that
+      // we haven't yet started any work on these children. Therefore, we use
+      // the clone algorithm to create a copy of all the current children.
+
+      // If we had any progressed work already, that is invalid at this point so
+      // let's throw it out.
+      workInProgress.child = reconcileChildFibers(workInProgress, current.child, nextChildren, renderExpirationTime);
     }
+  }
 
-    {
-      if (typeof newChild === 'function') {
-        warnOnFunctionType();
+  function updateFragment(current, workInProgress) {
+    var nextChildren = workInProgress.pendingProps;
+    if (hasContextChanged()) {
+      // Normally we can bail out on props equality but if context has changed
+      // we don't do the bailout and we have to reuse existing props instead.
+      if (nextChildren === null) {
+        nextChildren = workInProgress.memoizedProps;
       }
+    } else if (nextChildren === null || workInProgress.memoizedProps === nextChildren) {
+      return bailoutOnAlreadyFinishedWork(current, workInProgress);
     }
-
-    return null;
+    reconcileChildren(current, workInProgress, nextChildren);
+    memoizeProps(workInProgress, nextChildren);
+    return workInProgress.child;
   }
 
-  /**
-   * Warns if there is a duplicate or missing key
-   */
-  function warnOnInvalidKey(child, knownKeys) {
-    {
-      if (typeof child !== 'object' || child === null) {
-        return knownKeys;
-      }
-      switch (child.$$typeof) {
-        case REACT_ELEMENT_TYPE:
-        case REACT_COROUTINE_TYPE:
-        case REACT_PORTAL_TYPE:
-          warnForMissingKey(child);
-          var key = child.key;
-          if (typeof key !== 'string') {
-            break;
-          }
-          if (knownKeys === null) {
-            knownKeys = new Set();
-            knownKeys.add(key);
-            break;
-          }
-          if (!knownKeys.has(key)) {
-            knownKeys.add(key);
-            break;
-          }
-          warning$24(false, 'Encountered two children with the same key, `%s`. ' + 'Keys should be unique so that components maintain their identity ' + 'across updates. Non-unique keys may cause children to be ' + 'duplicated and/or omitted — the behavior is unsupported and ' + 'could change in a future version.%s', key, getCurrentFiberStackAddendum$5());
-          break;
-        default:
-          break;
-      }
+  function markRef(current, workInProgress) {
+    var ref = workInProgress.ref;
+    if (ref !== null && (!current || current.ref !== ref)) {
+      // Schedule a Ref effect
+      workInProgress.effectTag |= Ref;
     }
-    return knownKeys;
   }
 
-  function reconcileChildrenArray(returnFiber, currentFirstChild, newChildren, priority) {
-    // This algorithm can't optimize by searching from boths ends since we
-    // don't have backpointers on fibers. I'm trying to see how far we can get
-    // with that model. If it ends up not being worth the tradeoffs, we can
-    // add it later.
+  function updateFunctionalComponent(current, workInProgress) {
+    var fn = workInProgress.type;
+    var nextProps = workInProgress.pendingProps;
 
-    // Even with a two ended optimization, we'd want to optimize for the case
-    // where there are few changes and brute force the comparison instead of
-    // going for the Map. It'd like to explore hitting that path first in
-    // forward-only mode and only go for the Map once we notice that we need
-    // lots of look ahead. This doesn't handle reversal as well as two ended
-    // search but that's unusual. Besides, for the two ended optimization to
-    // work on Iterables, we'd need to copy the whole set.
+    var memoizedProps = workInProgress.memoizedProps;
+    if (hasContextChanged()) {
+      // Normally we can bail out on props equality but if context has changed
+      // we don't do the bailout and we have to reuse existing props instead.
+      if (nextProps === null) {
+        nextProps = memoizedProps;
+      }
+    } else {
+      if (nextProps === null || memoizedProps === nextProps) {
+        return bailoutOnAlreadyFinishedWork(current, workInProgress);
+      }
+      // TODO: consider bringing fn.shouldComponentUpdate() back.
+      // It used to be here.
+    }
 
-    // In this first iteration, we'll just live with hitting the bad case
-    // (adding everything to a Map) in for every insert/move.
+    var unmaskedContext = getUnmaskedContext(workInProgress);
+    var context = getMaskedContext(workInProgress, unmaskedContext);
 
-    // If you change this code, also update reconcileChildrenIterator() which
-    // uses the same algorithm.
+    var nextChildren;
 
     {
-      // First, validate keys.
-      var knownKeys = null;
-      for (var i = 0; i < newChildren.length; i++) {
-        var child = newChildren[i];
-        knownKeys = warnOnInvalidKey(child, knownKeys);
-      }
+      ReactCurrentOwner.current = workInProgress;
+      ReactDebugCurrentFiber.setCurrentPhase('render');
+      nextChildren = fn(nextProps, context);
+      ReactDebugCurrentFiber.setCurrentPhase(null);
     }
+    // React DevTools reads this flag.
+    workInProgress.effectTag |= PerformedWork;
+    reconcileChildren(current, workInProgress, nextChildren);
+    memoizeProps(workInProgress, nextProps);
+    return workInProgress.child;
+  }
 
-    var resultingFirstChild = null;
-    var previousNewFiber = null;
+  function updateClassComponent(current, workInProgress, renderExpirationTime) {
+    // Push context providers early to prevent context stack mismatches.
+    // During mounting we don't know the child context yet as the instance doesn't exist.
+    // We will invalidate the child context in finishClassComponent() right after rendering.
+    var hasContext = pushContextProvider(workInProgress);
 
-    var oldFiber = currentFirstChild;
-    var lastPlacedIndex = 0;
-    var newIdx = 0;
-    var nextOldFiber = null;
-    for (; oldFiber !== null && newIdx < newChildren.length; newIdx++) {
-      if (oldFiber.index > newIdx) {
-        nextOldFiber = oldFiber;
-        oldFiber = null;
-      } else {
-        nextOldFiber = oldFiber.sibling;
-      }
-      var newFiber = updateSlot(returnFiber, oldFiber, newChildren[newIdx], priority);
-      if (newFiber === null) {
-        // TODO: This breaks on empty slots like null children. That's
-        // unfortunate because it triggers the slow path all the time. We need
-        // a better way to communicate whether this was a miss or null,
-        // boolean, undefined, etc.
-        if (oldFiber === null) {
-          oldFiber = nextOldFiber;
-        }
-        break;
-      }
-      if (shouldTrackSideEffects) {
-        if (oldFiber && newFiber.alternate === null) {
-          // We matched the slot, but we didn't reuse the existing fiber, so we
-          // need to delete the existing child.
-          deleteChild(returnFiber, oldFiber);
-        }
-      }
-      lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
-      if (previousNewFiber === null) {
-        // TODO: Move out of the loop. This only happens for the first run.
-        resultingFirstChild = newFiber;
+    var shouldUpdate = void 0;
+    if (current === null) {
+      if (!workInProgress.stateNode) {
+        // In the initial pass we might need to construct the instance.
+        constructClassInstance(workInProgress, workInProgress.pendingProps);
+        mountClassInstance(workInProgress, renderExpirationTime);
+        shouldUpdate = true;
       } else {
-        // TODO: Defer siblings if we're not at the right index for this slot.
-        // I.e. if we had null values before, then we want to defer this
-        // for each null value. However, we also don't want to call updateSlot
-        // with the previous one.
-        previousNewFiber.sibling = newFiber;
+        invariant(false, 'Resuming work not yet implemented.');
+        // In a resume, we'll already have an instance we can reuse.
+        // shouldUpdate = resumeMountClassInstance(workInProgress, renderExpirationTime);
       }
-      previousNewFiber = newFiber;
-      oldFiber = nextOldFiber;
+    } else {
+      shouldUpdate = updateClassInstance(current, workInProgress, renderExpirationTime);
     }
+    return finishClassComponent(current, workInProgress, shouldUpdate, hasContext);
+  }
 
-    if (newIdx === newChildren.length) {
-      // We've reached the end of the new children. We can delete the rest.
-      deleteRemainingChildren(returnFiber, oldFiber);
-      return resultingFirstChild;
-    }
+  function finishClassComponent(current, workInProgress, shouldUpdate, hasContext) {
+    // Refs should update even if shouldComponentUpdate returns false
+    markRef(current, workInProgress);
 
-    if (oldFiber === null) {
-      // If we don't have any more existing children we can choose a fast path
-      // since the rest will all be insertions.
-      for (; newIdx < newChildren.length; newIdx++) {
-        var _newFiber = createChild(returnFiber, newChildren[newIdx], priority);
-        if (!_newFiber) {
-          continue;
-        }
-        lastPlacedIndex = placeChild(_newFiber, lastPlacedIndex, newIdx);
-        if (previousNewFiber === null) {
-          // TODO: Move out of the loop. This only happens for the first run.
-          resultingFirstChild = _newFiber;
-        } else {
-          previousNewFiber.sibling = _newFiber;
-        }
-        previousNewFiber = _newFiber;
+    if (!shouldUpdate) {
+      // Context providers should defer to sCU for rendering
+      if (hasContext) {
+        invalidateContextProvider(workInProgress, false);
       }
-      return resultingFirstChild;
+
+      return bailoutOnAlreadyFinishedWork(current, workInProgress);
     }
 
-    // Add all children to a key map for quick lookups.
-    var existingChildren = mapRemainingChildren(returnFiber, oldFiber);
+    var instance = workInProgress.stateNode;
 
-    // Keep scanning and use the map to restore deleted items as moves.
-    for (; newIdx < newChildren.length; newIdx++) {
-      var _newFiber2 = updateFromMap(existingChildren, returnFiber, newIdx, newChildren[newIdx], priority);
-      if (_newFiber2) {
-        if (shouldTrackSideEffects) {
-          if (_newFiber2.alternate !== null) {
-            // The new fiber is a work in progress, but if there exists a
-            // current, that means that we reused the fiber. We need to delete
-            // it from the child list so that we don't add it to the deletion
-            // list.
-            existingChildren['delete'](_newFiber2.key === null ? newIdx : _newFiber2.key);
-          }
-        }
-        lastPlacedIndex = placeChild(_newFiber2, lastPlacedIndex, newIdx);
-        if (previousNewFiber === null) {
-          resultingFirstChild = _newFiber2;
-        } else {
-          previousNewFiber.sibling = _newFiber2;
-        }
-        previousNewFiber = _newFiber2;
+    // Rerender
+    ReactCurrentOwner.current = workInProgress;
+    var nextChildren = void 0;
+    {
+      ReactDebugCurrentFiber.setCurrentPhase('render');
+      nextChildren = instance.render();
+      if (debugRenderPhaseSideEffects) {
+        instance.render();
       }
+      ReactDebugCurrentFiber.setCurrentPhase(null);
     }
+    // React DevTools reads this flag.
+    workInProgress.effectTag |= PerformedWork;
+    reconcileChildren(current, workInProgress, nextChildren);
+    // Memoize props and state using the values we just used to render.
+    // TODO: Restructure so we never read values from the instance.
+    memoizeState(workInProgress, instance.state);
+    memoizeProps(workInProgress, instance.props);
 
-    if (shouldTrackSideEffects) {
-      // Any existing children that weren't consumed above were deleted. We need
-      // to add them to the deletion list.
-      existingChildren.forEach(function (child) {
-        return deleteChild(returnFiber, child);
-      });
+    // The context might have changed so we need to recalculate it.
+    if (hasContext) {
+      invalidateContextProvider(workInProgress, true);
     }
 
-    return resultingFirstChild;
+    return workInProgress.child;
   }
 
-  function reconcileChildrenIterator(returnFiber, currentFirstChild, newChildrenIterable, priority) {
-    // This is the same implementation as reconcileChildrenArray(),
-    // but using the iterator instead.
-
-    var iteratorFn = getIteratorFn(newChildrenIterable);
-    !(typeof iteratorFn === 'function') ? invariant(false, 'An object is not an iterable. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+  function pushHostRootContext(workInProgress) {
+    var root = workInProgress.stateNode;
+    if (root.pendingContext) {
+      pushTopLevelContextObject(workInProgress, root.pendingContext, root.pendingContext !== root.context);
+    } else if (root.context) {
+      // Should always be set
+      pushTopLevelContextObject(workInProgress, root.context, false);
+    }
+    pushHostContainer(workInProgress, root.containerInfo);
+  }
 
-    {
-      // Warn about using Maps as children
-      if (typeof newChildrenIterable.entries === 'function') {
-        var possibleMap = newChildrenIterable;
-        if (possibleMap.entries === iteratorFn) {
-          warning$24(didWarnAboutMaps, 'Using Maps as children is unsupported and will likely yield ' + 'unexpected results. Convert it to a sequence/iterable of keyed ' + 'ReactElements instead.%s', getCurrentFiberStackAddendum$5());
-          didWarnAboutMaps = true;
-        }
+  function updateHostRoot(current, workInProgress, renderExpirationTime) {
+    pushHostRootContext(workInProgress);
+    var updateQueue = workInProgress.updateQueue;
+    if (updateQueue !== null) {
+      var prevState = workInProgress.memoizedState;
+      var state = processUpdateQueue(current, workInProgress, updateQueue, null, null, renderExpirationTime);
+      if (prevState === state) {
+        // If the state is the same as before, that's a bailout because we had
+        // no work that expires at this time.
+        resetHydrationState();
+        return bailoutOnAlreadyFinishedWork(current, workInProgress);
       }
+      var element = state.element;
+      var root = workInProgress.stateNode;
+      if ((current === null || current.child === null) && root.hydrate && enterHydrationState(workInProgress)) {
+        // If we don't have any current children this might be the first pass.
+        // We always try to hydrate. If this isn't a hydration pass there won't
+        // be any children to hydrate which is effectively the same thing as
+        // not hydrating.
 
-      // First, validate keys.
-      // We'll get a different iterator later for the main pass.
-      var _newChildren = iteratorFn.call(newChildrenIterable);
-      if (_newChildren) {
-        var knownKeys = null;
-        var _step = _newChildren.next();
-        for (; !_step.done; _step = _newChildren.next()) {
-          var child = _step.value;
-          knownKeys = warnOnInvalidKey(child, knownKeys);
-        }
+        // This is a bit of a hack. We track the host root as a placement to
+        // know that we're currently in a mounting state. That way isMounted
+        // works as expected. We must reset this before committing.
+        // TODO: Delete this when we delete isMounted and findDOMNode.
+        workInProgress.effectTag |= Placement;
+
+        // Ensure that children mount into this root without tracking
+        // side-effects. This ensures that we don't store Placement effects on
+        // nodes that will be hydrated.
+        workInProgress.child = mountChildFibers(workInProgress, null, element, renderExpirationTime);
+      } else {
+        // Otherwise reset hydration state in case we aborted and resumed another
+        // root.
+        resetHydrationState();
+        reconcileChildren(current, workInProgress, element);
       }
+      memoizeState(workInProgress, state);
+      return workInProgress.child;
     }
+    resetHydrationState();
+    // If there is no update queue, that's a bailout because the root has no props.
+    return bailoutOnAlreadyFinishedWork(current, workInProgress);
+  }
 
-    var newChildren = iteratorFn.call(newChildrenIterable);
-    !(newChildren != null) ? invariant(false, 'An iterable object provided no iterator.') : void 0;
-
-    var resultingFirstChild = null;
-    var previousNewFiber = null;
-
-    var oldFiber = currentFirstChild;
-    var lastPlacedIndex = 0;
-    var newIdx = 0;
-    var nextOldFiber = null;
+  function updateHostComponent(current, workInProgress, renderExpirationTime) {
+    pushHostContext(workInProgress);
 
-    var step = newChildren.next();
-    for (; oldFiber !== null && !step.done; newIdx++, step = newChildren.next()) {
-      if (oldFiber.index > newIdx) {
-        nextOldFiber = oldFiber;
-        oldFiber = null;
-      } else {
-        nextOldFiber = oldFiber.sibling;
-      }
-      var newFiber = updateSlot(returnFiber, oldFiber, step.value, priority);
-      if (newFiber === null) {
-        // TODO: This breaks on empty slots like null children. That's
-        // unfortunate because it triggers the slow path all the time. We need
-        // a better way to communicate whether this was a miss or null,
-        // boolean, undefined, etc.
-        if (!oldFiber) {
-          oldFiber = nextOldFiber;
-        }
-        break;
-      }
-      if (shouldTrackSideEffects) {
-        if (oldFiber && newFiber.alternate === null) {
-          // We matched the slot, but we didn't reuse the existing fiber, so we
-          // need to delete the existing child.
-          deleteChild(returnFiber, oldFiber);
-        }
-      }
-      lastPlacedIndex = placeChild(newFiber, lastPlacedIndex, newIdx);
-      if (previousNewFiber === null) {
-        // TODO: Move out of the loop. This only happens for the first run.
-        resultingFirstChild = newFiber;
-      } else {
-        // TODO: Defer siblings if we're not at the right index for this slot.
-        // I.e. if we had null values before, then we want to defer this
-        // for each null value. However, we also don't want to call updateSlot
-        // with the previous one.
-        previousNewFiber.sibling = newFiber;
-      }
-      previousNewFiber = newFiber;
-      oldFiber = nextOldFiber;
+    if (current === null) {
+      tryToClaimNextHydratableInstance(workInProgress);
     }
 
-    if (step.done) {
-      // We've reached the end of the new children. We can delete the rest.
-      deleteRemainingChildren(returnFiber, oldFiber);
-      return resultingFirstChild;
+    var type = workInProgress.type;
+    var memoizedProps = workInProgress.memoizedProps;
+    var nextProps = workInProgress.pendingProps;
+    if (nextProps === null) {
+      nextProps = memoizedProps;
+      !(nextProps !== null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0;
     }
+    var prevProps = current !== null ? current.memoizedProps : null;
 
-    if (oldFiber === null) {
-      // If we don't have any more existing children we can choose a fast path
-      // since the rest will all be insertions.
-      for (; !step.done; newIdx++, step = newChildren.next()) {
-        var _newFiber3 = createChild(returnFiber, step.value, priority);
-        if (_newFiber3 === null) {
-          continue;
-        }
-        lastPlacedIndex = placeChild(_newFiber3, lastPlacedIndex, newIdx);
-        if (previousNewFiber === null) {
-          // TODO: Move out of the loop. This only happens for the first run.
-          resultingFirstChild = _newFiber3;
-        } else {
-          previousNewFiber.sibling = _newFiber3;
-        }
-        previousNewFiber = _newFiber3;
-      }
-      return resultingFirstChild;
+    if (hasContextChanged()) {
+      // Normally we can bail out on props equality but if context has changed
+      // we don't do the bailout and we have to reuse existing props instead.
+    } else if (nextProps === null || memoizedProps === nextProps) {
+      return bailoutOnAlreadyFinishedWork(current, workInProgress);
     }
 
-    // Add all children to a key map for quick lookups.
-    var existingChildren = mapRemainingChildren(returnFiber, oldFiber);
+    var nextChildren = nextProps.children;
+    var isDirectTextChild = shouldSetTextContent(type, nextProps);
 
-    // Keep scanning and use the map to restore deleted items as moves.
-    for (; !step.done; newIdx++, step = newChildren.next()) {
-      var _newFiber4 = updateFromMap(existingChildren, returnFiber, newIdx, step.value, priority);
-      if (_newFiber4 !== null) {
-        if (shouldTrackSideEffects) {
-          if (_newFiber4.alternate !== null) {
-            // The new fiber is a work in progress, but if there exists a
-            // current, that means that we reused the fiber. We need to delete
-            // it from the child list so that we don't add it to the deletion
-            // list.
-            existingChildren['delete'](_newFiber4.key === null ? newIdx : _newFiber4.key);
-          }
-        }
-        lastPlacedIndex = placeChild(_newFiber4, lastPlacedIndex, newIdx);
-        if (previousNewFiber === null) {
-          resultingFirstChild = _newFiber4;
-        } else {
-          previousNewFiber.sibling = _newFiber4;
-        }
-        previousNewFiber = _newFiber4;
-      }
+    if (isDirectTextChild) {
+      // We special case a direct text child of a host node. This is a common
+      // case. We won't handle it as a reified child. We will instead handle
+      // this in the host environment that also have access to this prop. That
+      // avoids allocating another HostText fiber and traversing it.
+      nextChildren = null;
+    } else if (prevProps && shouldSetTextContent(type, prevProps)) {
+      // If we're switching from a direct text child to a normal child, or to
+      // empty, we need to schedule the text content to be reset.
+      workInProgress.effectTag |= ContentReset;
     }
 
-    if (shouldTrackSideEffects) {
-      // Any existing children that weren't consumed above were deleted. We need
-      // to add them to the deletion list.
-      existingChildren.forEach(function (child) {
-        return deleteChild(returnFiber, child);
-      });
+    markRef(current, workInProgress);
+
+    // Check the host config to see if the children are offscreen/hidden.
+    if (renderExpirationTime !== Never && !useSyncScheduling && shouldDeprioritizeSubtree(type, nextProps)) {
+      // Down-prioritize the children.
+      workInProgress.expirationTime = Never;
+      // Bailout and come back to this fiber later.
+      return null;
     }
 
-    return resultingFirstChild;
+    reconcileChildren(current, workInProgress, nextChildren);
+    memoizeProps(workInProgress, nextProps);
+    return workInProgress.child;
   }
 
-  function reconcileSingleTextNode(returnFiber, currentFirstChild, textContent, priority) {
-    // There's no need to check for keys on text nodes since we don't have a
-    // way to define them.
-    if (currentFirstChild !== null && currentFirstChild.tag === HostText$5) {
-      // We already have an existing node so let's just update it and delete
-      // the rest.
-      deleteRemainingChildren(returnFiber, currentFirstChild.sibling);
-      var existing = useFiber(currentFirstChild, priority);
-      existing.pendingProps = textContent;
-      existing['return'] = returnFiber;
-      return existing;
+  function updateHostText(current, workInProgress) {
+    if (current === null) {
+      tryToClaimNextHydratableInstance(workInProgress);
     }
-    // The existing first child is not a text node so we need to create one
-    // and delete the existing ones.
-    deleteRemainingChildren(returnFiber, currentFirstChild);
-    var created = createFiberFromText$1(textContent, returnFiber.internalContextTag, priority);
-    created['return'] = returnFiber;
-    return created;
+    var nextProps = workInProgress.pendingProps;
+    if (nextProps === null) {
+      nextProps = workInProgress.memoizedProps;
+    }
+    memoizeProps(workInProgress, nextProps);
+    // Nothing to do here. This is terminal. We'll do the completion step
+    // immediately after.
+    return null;
   }
 
-  function reconcileSingleElement(returnFiber, currentFirstChild, element, priority) {
-    var key = element.key;
-    var child = currentFirstChild;
-    while (child !== null) {
-      // TODO: If key === null and child.key === null, then this only applies to
-      // the first item in the list.
-      if (child.key === key) {
-        if (child.type === element.type) {
-          deleteRemainingChildren(returnFiber, child.sibling);
-          var existing = useFiber(child, priority);
-          existing.ref = coerceRef(child, element);
-          existing.pendingProps = element.props;
-          existing['return'] = returnFiber;
-          {
-            existing._debugSource = element._source;
-            existing._debugOwner = element._owner;
-          }
-          return existing;
-        } else {
-          deleteRemainingChildren(returnFiber, child);
-          break;
-        }
-      } else {
-        deleteChild(returnFiber, child);
-      }
-      child = child.sibling;
-    }
+  function mountIndeterminateComponent(current, workInProgress, renderExpirationTime) {
+    !(current === null) ? invariant(false, 'An indeterminate component should never have mounted. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    var fn = workInProgress.type;
+    var props = workInProgress.pendingProps;
+    var unmaskedContext = getUnmaskedContext(workInProgress);
+    var context = getMaskedContext(workInProgress, unmaskedContext);
 
-    var created = createFiberFromElement$1(element, returnFiber.internalContextTag, priority);
-    created.ref = coerceRef(currentFirstChild, element);
-    created['return'] = returnFiber;
-    return created;
-  }
+    var value;
 
-  function reconcileSingleCoroutine(returnFiber, currentFirstChild, coroutine, priority) {
-    var key = coroutine.key;
-    var child = currentFirstChild;
-    while (child !== null) {
-      // TODO: If key === null and child.key === null, then this only applies to
-      // the first item in the list.
-      if (child.key === key) {
-        if (child.tag === CoroutineComponent$2) {
-          deleteRemainingChildren(returnFiber, child.sibling);
-          var existing = useFiber(child, priority);
-          existing.pendingProps = coroutine;
-          existing['return'] = returnFiber;
-          return existing;
-        } else {
-          deleteRemainingChildren(returnFiber, child);
-          break;
-        }
-      } else {
-        deleteChild(returnFiber, child);
+    {
+      if (fn.prototype && typeof fn.prototype.render === 'function') {
+        var componentName = getComponentName(workInProgress);
+        warning(false, "The <%s /> component appears to have a render method, but doesn't extend React.Component. " + 'This is likely to cause errors. Change %s to extend React.Component instead.', componentName, componentName);
       }
-      child = child.sibling;
+      ReactCurrentOwner.current = workInProgress;
+      value = fn(props, context);
     }
+    // React DevTools reads this flag.
+    workInProgress.effectTag |= PerformedWork;
 
-    var created = createFiberFromCoroutine$1(coroutine, returnFiber.internalContextTag, priority);
-    created['return'] = returnFiber;
-    return created;
-  }
+    if (typeof value === 'object' && value !== null && typeof value.render === 'function') {
+      // Proceed under the assumption that this is a class instance
+      workInProgress.tag = ClassComponent;
 
-  function reconcileSingleYield(returnFiber, currentFirstChild, yieldNode, priority) {
-    // There's no need to check for keys on yields since they're stateless.
-    var child = currentFirstChild;
-    if (child !== null) {
-      if (child.tag === YieldComponent$3) {
-        deleteRemainingChildren(returnFiber, child.sibling);
-        var existing = useFiber(child, priority);
-        existing.type = yieldNode.value;
-        existing['return'] = returnFiber;
-        return existing;
-      } else {
-        deleteRemainingChildren(returnFiber, child);
-      }
-    }
+      // Push context providers early to prevent context stack mismatches.
+      // During mounting we don't know the child context yet as the instance doesn't exist.
+      // We will invalidate the child context in finishClassComponent() right after rendering.
+      var hasContext = pushContextProvider(workInProgress);
+      adoptClassInstance(workInProgress, value);
+      mountClassInstance(workInProgress, renderExpirationTime);
+      return finishClassComponent(current, workInProgress, true, hasContext);
+    } else {
+      // Proceed under the assumption that this is a functional component
+      workInProgress.tag = FunctionalComponent;
+      {
+        var Component = workInProgress.type;
 
-    var created = createFiberFromYield$1(yieldNode, returnFiber.internalContextTag, priority);
-    created.type = yieldNode.value;
-    created['return'] = returnFiber;
-    return created;
-  }
+        if (Component) {
+          warning(!Component.childContextTypes, '%s(...): childContextTypes cannot be defined on a functional component.', Component.displayName || Component.name || 'Component');
+        }
+        if (workInProgress.ref !== null) {
+          var info = '';
+          var ownerName = ReactDebugCurrentFiber.getCurrentFiberOwnerName();
+          if (ownerName) {
+            info += '\n\nCheck the render method of `' + ownerName + '`.';
+          }
 
-  function reconcileSinglePortal(returnFiber, currentFirstChild, portal, priority) {
-    var key = portal.key;
-    var child = currentFirstChild;
-    while (child !== null) {
-      // TODO: If key === null and child.key === null, then this only applies to
-      // the first item in the list.
-      if (child.key === key) {
-        if (child.tag === HostPortal$5 && child.stateNode.containerInfo === portal.containerInfo && child.stateNode.implementation === portal.implementation) {
-          deleteRemainingChildren(returnFiber, child.sibling);
-          var existing = useFiber(child, priority);
-          existing.pendingProps = portal.children || [];
-          existing['return'] = returnFiber;
-          return existing;
-        } else {
-          deleteRemainingChildren(returnFiber, child);
-          break;
+          var warningKey = ownerName || workInProgress._debugID || '';
+          var debugSource = workInProgress._debugSource;
+          if (debugSource) {
+            warningKey = debugSource.fileName + ':' + debugSource.lineNumber;
+          }
+          if (!warnedAboutStatelessRefs[warningKey]) {
+            warnedAboutStatelessRefs[warningKey] = true;
+            warning(false, 'Stateless function components cannot be given refs. ' + 'Attempts to access this ref will fail.%s%s', info, ReactDebugCurrentFiber.getCurrentFiberStackAddendum());
+          }
         }
-      } else {
-        deleteChild(returnFiber, child);
       }
-      child = child.sibling;
+      reconcileChildren(current, workInProgress, value);
+      memoizeProps(workInProgress, props);
+      return workInProgress.child;
     }
-
-    var created = createFiberFromPortal$1(portal, returnFiber.internalContextTag, priority);
-    created['return'] = returnFiber;
-    return created;
   }
 
-  // This API will tag the children with the side-effect of the reconciliation
-  // itself. They will be added to the side-effect list as we pass through the
-  // children and the parent.
-  function reconcileChildFibers(returnFiber, currentFirstChild, newChild, priority) {
-    // This function is not recursive.
-    // If the top level item is an array, we treat it as a set of children,
-    // not as a fragment. Nested arrays on the other hand will be treated as
-    // fragment nodes. Recursion happens at the normal flow.
-
-    // Handle object types
-    var isObject = typeof newChild === 'object' && newChild !== null;
-    if (isObject) {
-      // Support only the subset of return types that Stack supports. Treat
-      // everything else as empty, but log a warning.
-      switch (newChild.$$typeof) {
-        case REACT_ELEMENT_TYPE:
-          return placeSingleChild(reconcileSingleElement(returnFiber, currentFirstChild, newChild, priority));
-
-        case REACT_COROUTINE_TYPE:
-          return placeSingleChild(reconcileSingleCoroutine(returnFiber, currentFirstChild, newChild, priority));
-
-        case REACT_YIELD_TYPE:
-          return placeSingleChild(reconcileSingleYield(returnFiber, currentFirstChild, newChild, priority));
-
-        case REACT_PORTAL_TYPE:
-          return placeSingleChild(reconcileSinglePortal(returnFiber, currentFirstChild, newChild, priority));
+  function updateCallComponent(current, workInProgress, renderExpirationTime) {
+    var nextCall = workInProgress.pendingProps;
+    if (hasContextChanged()) {
+      // Normally we can bail out on props equality but if context has changed
+      // we don't do the bailout and we have to reuse existing props instead.
+      if (nextCall === null) {
+        nextCall = current && current.memoizedProps;
+        !(nextCall !== null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0;
       }
+    } else if (nextCall === null || workInProgress.memoizedProps === nextCall) {
+      nextCall = workInProgress.memoizedProps;
+      // TODO: When bailing out, we might need to return the stateNode instead
+      // of the child. To check it for work.
+      // return bailoutOnAlreadyFinishedWork(current, workInProgress);
     }
 
-    if (typeof newChild === 'string' || typeof newChild === 'number') {
-      return placeSingleChild(reconcileSingleTextNode(returnFiber, currentFirstChild, '' + newChild, priority));
-    }
+    var nextChildren = nextCall.children;
 
-    if (isArray(newChild)) {
-      return reconcileChildrenArray(returnFiber, currentFirstChild, newChild, priority);
+    // The following is a fork of reconcileChildrenAtExpirationTime but using
+    // stateNode to store the child.
+    if (current === null) {
+      workInProgress.stateNode = mountChildFibers(workInProgress, workInProgress.stateNode, nextChildren, renderExpirationTime);
+    } else {
+      workInProgress.stateNode = reconcileChildFibers(workInProgress, workInProgress.stateNode, nextChildren, renderExpirationTime);
     }
 
-    if (getIteratorFn(newChild)) {
-      return reconcileChildrenIterator(returnFiber, currentFirstChild, newChild, priority);
+    memoizeProps(workInProgress, nextCall);
+    // This doesn't take arbitrary time so we could synchronously just begin
+    // eagerly do the work of workInProgress.child as an optimization.
+    return workInProgress.stateNode;
+  }
+
+  function updatePortalComponent(current, workInProgress, renderExpirationTime) {
+    pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
+    var nextChildren = workInProgress.pendingProps;
+    if (hasContextChanged()) {
+      // Normally we can bail out on props equality but if context has changed
+      // we don't do the bailout and we have to reuse existing props instead.
+      if (nextChildren === null) {
+        nextChildren = current && current.memoizedProps;
+        !(nextChildren != null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+      }
+    } else if (nextChildren === null || workInProgress.memoizedProps === nextChildren) {
+      return bailoutOnAlreadyFinishedWork(current, workInProgress);
     }
 
-    if (isObject) {
-      throwOnInvalidObjectType(returnFiber, newChild);
+    if (current === null) {
+      // Portals are special because we don't append the children during mount
+      // but at commit. Therefore we need to track insertions which the normal
+      // flow doesn't do during mount. This doesn't happen at the root because
+      // the root always starts with a "current" with a null child.
+      // TODO: Consider unifying this with how the root works.
+      workInProgress.child = reconcileChildFibers(workInProgress, null, nextChildren, renderExpirationTime);
+      memoizeProps(workInProgress, nextChildren);
+    } else {
+      reconcileChildren(current, workInProgress, nextChildren);
+      memoizeProps(workInProgress, nextChildren);
     }
+    return workInProgress.child;
+  }
 
-    {
-      if (typeof newChild === 'function') {
-        warnOnFunctionType();
+  /*
+  function reuseChildrenEffects(returnFiber : Fiber, firstChild : Fiber) {
+    let child = firstChild;
+    do {
+      // Ensure that the first and last effect of the parent corresponds
+      // to the children's first and last effect.
+      if (!returnFiber.firstEffect) {
+        returnFiber.firstEffect = child.firstEffect;
       }
-    }
-    if (typeof newChild === 'undefined') {
-      // If the new child is undefined, and the return fiber is a composite
-      // component, throw an error. If Fiber return types are disabled,
-      // we already threw above.
-      switch (returnFiber.tag) {
-        case ClassComponent$7:
-          {
-            {
-              var instance = returnFiber.stateNode;
-              if (instance.render._isMockFunction) {
-                // We allow auto-mocks to proceed as if they're returning null.
-                break;
-              }
-            }
-          }
-        // Intentionally fall through to the next case, which handles both
-        // functions and classes
-        // eslint-disable-next-lined no-fallthrough
-        case FunctionalComponent$2:
-          {
-            var Component = returnFiber.type;
-            invariant(false, '%s(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null.', Component.displayName || Component.name || 'Component');
-          }
+      if (child.lastEffect) {
+        if (returnFiber.lastEffect) {
+          returnFiber.lastEffect.nextEffect = child.firstEffect;
+        }
+        returnFiber.lastEffect = child.lastEffect;
       }
-    }
-
-    // Remaining cases are all treated as empty.
-    return deleteRemainingChildren(returnFiber, currentFirstChild);
+    } while (child = child.sibling);
   }
+  */
 
-  return reconcileChildFibers;
-}
+  function bailoutOnAlreadyFinishedWork(current, workInProgress) {
+    cancelWorkTimer(workInProgress);
 
-var reconcileChildFibers$1 = ChildReconciler(true, true);
+    // TODO: We should ideally be able to bail out early if the children have no
+    // more work to do. However, since we don't have a separation of this
+    // Fiber's priority and its children yet - we don't know without doing lots
+    // of the same work we do anyway. Once we have that separation we can just
+    // bail out here if the children has no more work at this priority level.
+    // if (workInProgress.priorityOfChildren <= priorityLevel) {
+    //   // If there are side-effects in these children that have not yet been
+    //   // committed we need to ensure that they get properly transferred up.
+    //   if (current && current.child !== workInProgress.child) {
+    //     reuseChildrenEffects(workInProgress, child);
+    //   }
+    //   return null;
+    // }
 
-var reconcileChildFibersInPlace$1 = ChildReconciler(false, true);
+    cloneChildFibers(current, workInProgress);
+    return workInProgress.child;
+  }
 
-var mountChildFibersInPlace$1 = ChildReconciler(false, false);
+  function bailoutOnLowPriority(current, workInProgress) {
+    cancelWorkTimer(workInProgress);
 
-var cloneChildFibers$1 = function (current, workInProgress) {
-  !(current === null || workInProgress.child === current.child) ? invariant(false, 'Resuming work not yet implemented.') : void 0;
+    // TODO: Handle HostComponent tags here as well and call pushHostContext()?
+    // See PR 8590 discussion for context
+    switch (workInProgress.tag) {
+      case HostRoot:
+        pushHostRootContext(workInProgress);
+        break;
+      case ClassComponent:
+        pushContextProvider(workInProgress);
+        break;
+      case HostPortal:
+        pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
+        break;
+    }
+    // TODO: What if this is currently in progress?
+    // How can that happen? How is this not being cloned?
+    return null;
+  }
 
-  if (workInProgress.child === null) {
-    return;
+  // TODO: Delete memoizeProps/State and move to reconcile/bailout instead
+  function memoizeProps(workInProgress, nextProps) {
+    workInProgress.memoizedProps = nextProps;
   }
 
-  var currentChild = workInProgress.child;
-  var newChild = createWorkInProgress$2(currentChild, currentChild.pendingWorkPriority);
-  // TODO: Pass this as an argument, since it's easy to forget.
-  newChild.pendingProps = currentChild.pendingProps;
-  workInProgress.child = newChild;
+  function memoizeState(workInProgress, nextState) {
+    workInProgress.memoizedState = nextState;
+    // Don't reset the updateQueue, in case there are pending updates. Resetting
+    // is handled by processUpdateQueue.
+  }
 
-  newChild['return'] = workInProgress;
-  while (currentChild.sibling !== null) {
-    currentChild = currentChild.sibling;
-    newChild = newChild.sibling = createWorkInProgress$2(currentChild, currentChild.pendingWorkPriority);
-    newChild.pendingProps = currentChild.pendingProps;
-    newChild['return'] = workInProgress;
-  }
-  newChild.sibling = null;
-};
-
-var ReactChildFiber = {
-	reconcileChildFibers: reconcileChildFibers$1,
-	reconcileChildFibersInPlace: reconcileChildFibersInPlace$1,
-	mountChildFibersInPlace: mountChildFibersInPlace$1,
-	cloneChildFibers: cloneChildFibers$1
-};
-
-var Update$1 = ReactTypeOfSideEffect.Update;
-
-
-
-var AsyncUpdates$1 = ReactTypeOfInternalContext.AsyncUpdates;
-
-var cacheContext$1 = ReactFiberContext.cacheContext;
-var getMaskedContext$2 = ReactFiberContext.getMaskedContext;
-var getUnmaskedContext$2 = ReactFiberContext.getUnmaskedContext;
-var isContextConsumer$1 = ReactFiberContext.isContextConsumer;
-
-var addUpdate$1 = ReactFiberUpdateQueue.addUpdate;
-var addReplaceUpdate$1 = ReactFiberUpdateQueue.addReplaceUpdate;
-var addForceUpdate$1 = ReactFiberUpdateQueue.addForceUpdate;
-var beginUpdateQueue$2 = ReactFiberUpdateQueue.beginUpdateQueue;
-
-var _require5 = ReactFiberContext;
-var hasContextChanged$2 = _require5.hasContextChanged;
-
-var isMounted$1 = ReactFiberTreeReflection.isMounted;
-
-
-
-
-
-
-
-var fakeInternalInstance = {};
-var isArray$1 = Array.isArray;
-
-{
-  var _require7$1 = ReactDebugFiberPerf_1,
-      startPhaseTimer$1 = _require7$1.startPhaseTimer,
-      stopPhaseTimer$1 = _require7$1.stopPhaseTimer;
-
-  var warning$25 = require$$0;
-  var warnOnInvalidCallback = function (callback, callerName) {
-    warning$25(callback === null || typeof callback === 'function', '%s(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callerName, callback);
-  };
-
-  // This is so gross but it's at least non-critical and can be removed if
-  // it causes problems. This is meant to give a nicer error message for
-  // ReactDOM15.unstable_renderSubtreeIntoContainer(reactDOM16Component,
-  // ...)) which otherwise throws a "_processChildContext is not a function"
-  // exception.
-  Object.defineProperty(fakeInternalInstance, '_processChildContext', {
-    enumerable: false,
-    value: function () {
-      invariant(false, '_processChildContext is not available in React 16+. This likely means you have multiple copies of React and are attempting to nest a React 15 tree inside a React 16 tree using unstable_renderSubtreeIntoContainer, which isn\'t supported. Try to make sure you have only one copy of React (and ideally, switch to ReactDOM.createPortal).');
+  function beginWork(current, workInProgress, renderExpirationTime) {
+    if (workInProgress.expirationTime === NoWork || workInProgress.expirationTime > renderExpirationTime) {
+      return bailoutOnLowPriority(current, workInProgress);
     }
-  });
-  Object.freeze(fakeInternalInstance);
-}
 
-var ReactFiberClassComponent = function (scheduleUpdate, getPriorityContext, memoizeProps, memoizeState) {
-  // Class component state updater
-  var updater = {
-    isMounted: isMounted$1,
-    enqueueSetState: function (instance, partialState, callback) {
-      var fiber = ReactInstanceMap_1.get(instance);
-      var priorityLevel = getPriorityContext(fiber, false);
-      callback = callback === undefined ? null : callback;
-      {
-        warnOnInvalidCallback(callback, 'setState');
-      }
-      addUpdate$1(fiber, partialState, callback, priorityLevel);
-      scheduleUpdate(fiber, priorityLevel);
-    },
-    enqueueReplaceState: function (instance, state, callback) {
-      var fiber = ReactInstanceMap_1.get(instance);
-      var priorityLevel = getPriorityContext(fiber, false);
-      callback = callback === undefined ? null : callback;
-      {
-        warnOnInvalidCallback(callback, 'replaceState');
-      }
-      addReplaceUpdate$1(fiber, state, callback, priorityLevel);
-      scheduleUpdate(fiber, priorityLevel);
-    },
-    enqueueForceUpdate: function (instance, callback) {
-      var fiber = ReactInstanceMap_1.get(instance);
-      var priorityLevel = getPriorityContext(fiber, false);
-      callback = callback === undefined ? null : callback;
-      {
-        warnOnInvalidCallback(callback, 'forceUpdate');
-      }
-      addForceUpdate$1(fiber, callback, priorityLevel);
-      scheduleUpdate(fiber, priorityLevel);
+    switch (workInProgress.tag) {
+      case IndeterminateComponent:
+        return mountIndeterminateComponent(current, workInProgress, renderExpirationTime);
+      case FunctionalComponent:
+        return updateFunctionalComponent(current, workInProgress);
+      case ClassComponent:
+        return updateClassComponent(current, workInProgress, renderExpirationTime);
+      case HostRoot:
+        return updateHostRoot(current, workInProgress, renderExpirationTime);
+      case HostComponent:
+        return updateHostComponent(current, workInProgress, renderExpirationTime);
+      case HostText:
+        return updateHostText(current, workInProgress);
+      case CallHandlerPhase:
+        // This is a restart. Reset the tag to the initial phase.
+        workInProgress.tag = CallComponent;
+      // Intentionally fall through since this is now the same.
+      case CallComponent:
+        return updateCallComponent(current, workInProgress, renderExpirationTime);
+      case ReturnComponent:
+        // A return component is just a placeholder, we can just run through the
+        // next one immediately.
+        return null;
+      case HostPortal:
+        return updatePortalComponent(current, workInProgress, renderExpirationTime);
+      case Fragment:
+        return updateFragment(current, workInProgress);
+      default:
+        invariant(false, 'Unknown unit of work tag. This error is likely caused by a bug in React. Please file an issue.');
     }
-  };
+  }
 
-  function checkShouldComponentUpdate(workInProgress, oldProps, newProps, oldState, newState, newContext) {
-    if (oldProps === null || workInProgress.updateQueue !== null && workInProgress.updateQueue.hasForceUpdate) {
-      // If the workInProgress already has an Update effect, return true
-      return true;
+  function beginFailedWork(current, workInProgress, renderExpirationTime) {
+    // Push context providers here to avoid a push/pop context mismatch.
+    switch (workInProgress.tag) {
+      case ClassComponent:
+        pushContextProvider(workInProgress);
+        break;
+      case HostRoot:
+        pushHostRootContext(workInProgress);
+        break;
+      default:
+        invariant(false, 'Invalid type of work. This error is likely caused by a bug in React. Please file an issue.');
     }
 
-    var instance = workInProgress.stateNode;
-    var type = workInProgress.type;
-    if (typeof instance.shouldComponentUpdate === 'function') {
-      {
-        startPhaseTimer$1(workInProgress, 'shouldComponentUpdate');
-      }
-      var shouldUpdate = instance.shouldComponentUpdate(newProps, newState, newContext);
-      {
-        stopPhaseTimer$1();
-      }
-
-      {
-        warning$25(shouldUpdate !== undefined, '%s.shouldComponentUpdate(): Returned undefined instead of a ' + 'boolean value. Make sure to return true or false.', getComponentName_1(workInProgress) || 'Unknown');
-      }
+    // Add an error effect so we can handle the error during the commit phase
+    workInProgress.effectTag |= Err;
 
-      return shouldUpdate;
+    // This is a weird case where we do "resume" work — work that failed on
+    // our first attempt. Because we no longer have a notion of "progressed
+    // deletions," reset the child to the current child to make sure we delete
+    // it again. TODO: Find a better way to handle this, perhaps during a more
+    // general overhaul of error handling.
+    if (current === null) {
+      workInProgress.child = null;
+    } else if (workInProgress.child !== current.child) {
+      workInProgress.child = current.child;
     }
 
-    if (type.prototype && type.prototype.isPureReactComponent) {
-      return !shallowEqual(oldProps, newProps) || !shallowEqual(oldState, newState);
+    if (workInProgress.expirationTime === NoWork || workInProgress.expirationTime > renderExpirationTime) {
+      return bailoutOnLowPriority(current, workInProgress);
     }
 
-    return true;
-  }
+    // If we don't bail out, we're going be recomputing our children so we need
+    // to drop our effect list.
+    workInProgress.firstEffect = null;
+    workInProgress.lastEffect = null;
 
-  function checkClassInstance(workInProgress) {
-    var instance = workInProgress.stateNode;
-    var type = workInProgress.type;
-    {
-      var name = getComponentName_1(workInProgress);
-      var renderPresent = instance.render;
-      warning$25(renderPresent, '%s(...): No `render` method found on the returned component ' + 'instance: you may have forgotten to define `render`.', name);
-      var noGetInitialStateOnES6 = !instance.getInitialState || instance.getInitialState.isReactClassApproved || instance.state;
-      warning$25(noGetInitialStateOnES6, 'getInitialState was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Did you mean to define a state property instead?', name);
-      var noGetDefaultPropsOnES6 = !instance.getDefaultProps || instance.getDefaultProps.isReactClassApproved;
-      warning$25(noGetDefaultPropsOnES6, 'getDefaultProps was defined on %s, a plain JavaScript class. ' + 'This is only supported for classes created using React.createClass. ' + 'Use a static property to define defaultProps instead.', name);
-      var noInstancePropTypes = !instance.propTypes;
-      warning$25(noInstancePropTypes, 'propTypes was defined as an instance property on %s. Use a static ' + 'property to define propTypes instead.', name);
-      var noInstanceContextTypes = !instance.contextTypes;
-      warning$25(noInstanceContextTypes, 'contextTypes was defined as an instance property on %s. Use a static ' + 'property to define contextTypes instead.', name);
-      var noComponentShouldUpdate = typeof instance.componentShouldUpdate !== 'function';
-      warning$25(noComponentShouldUpdate, '%s has a method called ' + 'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' + 'The name is phrased as a question because the function is ' + 'expected to return a value.', name);
-      if (type.prototype && type.prototype.isPureReactComponent && typeof instance.shouldComponentUpdate !== 'undefined') {
-        warning$25(false, '%s has a method called shouldComponentUpdate(). ' + 'shouldComponentUpdate should not be used when extending React.PureComponent. ' + 'Please extend React.Component if shouldComponentUpdate is used.', getComponentName_1(workInProgress) || 'A pure component');
-      }
-      var noComponentDidUnmount = typeof instance.componentDidUnmount !== 'function';
-      warning$25(noComponentDidUnmount, '%s has a method called ' + 'componentDidUnmount(). But there is no such lifecycle method. ' + 'Did you mean componentWillUnmount()?', name);
-      var noComponentWillRecieveProps = typeof instance.componentWillRecieveProps !== 'function';
-      warning$25(noComponentWillRecieveProps, '%s has a method called ' + 'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?', name);
-      var hasMutatedProps = instance.props !== workInProgress.pendingProps;
-      warning$25(instance.props === undefined || !hasMutatedProps, '%s(...): When calling super() in `%s`, make sure to pass ' + "up the same props that your component's constructor was passed.", name, name);
-      var noInstanceDefaultProps = !instance.defaultProps;
-      warning$25(noInstanceDefaultProps, 'Setting defaultProps as an instance property on %s is not supported and will be ignored.' + ' Instead, define defaultProps as a static property on %s.', name, name);
-    }
+    // Unmount the current children as if the component rendered null
+    var nextChildren = null;
+    reconcileChildrenAtExpirationTime(current, workInProgress, nextChildren, renderExpirationTime);
 
-    var state = instance.state;
-    if (state && (typeof state !== 'object' || isArray$1(state))) {
-      invariant(false, '%s.state: must be set to an object or null', getComponentName_1(workInProgress));
-    }
-    if (typeof instance.getChildContext === 'function') {
-      !(typeof workInProgress.type.childContextTypes === 'object') ? invariant(false, '%s.getChildContext(): childContextTypes must be defined in order to use getChildContext().', getComponentName_1(workInProgress)) : void 0;
+    if (workInProgress.tag === ClassComponent) {
+      var instance = workInProgress.stateNode;
+      workInProgress.memoizedProps = instance.props;
+      workInProgress.memoizedState = instance.state;
     }
-  }
 
-  function resetInputPointers(workInProgress, instance) {
-    instance.props = workInProgress.memoizedProps;
-    instance.state = workInProgress.memoizedState;
+    return workInProgress.child;
   }
 
-  function adoptClassInstance(workInProgress, instance) {
-    instance.updater = updater;
-    workInProgress.stateNode = instance;
-    // The instance needs access to the fiber so that it can schedule updates
-    ReactInstanceMap_1.set(instance, workInProgress);
-    {
-      instance._reactInternalInstance = fakeInternalInstance;
-    }
-  }
+  return {
+    beginWork: beginWork,
+    beginFailedWork: beginFailedWork
+  };
+};
 
-  function constructClassInstance(workInProgress, props) {
-    var ctor = workInProgress.type;
-    var unmaskedContext = getUnmaskedContext$2(workInProgress);
-    var needsContext = isContextConsumer$1(workInProgress);
-    var context = needsContext ? getMaskedContext$2(workInProgress, unmaskedContext) : emptyObject;
-    var instance = new ctor(props, context);
-    adoptClassInstance(workInProgress, instance);
+var ReactFiberCompleteWork = function (config, hostContext, hydrationContext) {
+  var createInstance = config.createInstance,
+      createTextInstance = config.createTextInstance,
+      appendInitialChild = config.appendInitialChild,
+      finalizeInitialChildren = config.finalizeInitialChildren,
+      prepareUpdate = config.prepareUpdate,
+      mutation = config.mutation,
+      persistence = config.persistence;
+  var getRootHostContainer = hostContext.getRootHostContainer,
+      popHostContext = hostContext.popHostContext,
+      getHostContext = hostContext.getHostContext,
+      popHostContainer = hostContext.popHostContainer;
+  var prepareToHydrateHostInstance = hydrationContext.prepareToHydrateHostInstance,
+      prepareToHydrateHostTextInstance = hydrationContext.prepareToHydrateHostTextInstance,
+      popHydrationState = hydrationContext.popHydrationState;
 
-    // Cache unmasked context so we can avoid recreating masked context unless necessary.
-    // ReactFiberContext usually updates this cache but can't for newly-created instances.
-    if (needsContext) {
-      cacheContext$1(workInProgress, unmaskedContext, context);
-    }
 
-    return instance;
+  function markUpdate(workInProgress) {
+    // Tag the fiber with an update effect. This turns a Placement into
+    // an UpdateAndPlacement.
+    workInProgress.effectTag |= Update;
   }
 
-  function callComponentWillMount(workInProgress, instance) {
-    {
-      startPhaseTimer$1(workInProgress, 'componentWillMount');
-    }
-    var oldState = instance.state;
-    instance.componentWillMount();
-    {
-      stopPhaseTimer$1();
-    }
-
-    if (oldState !== instance.state) {
-      {
-        warning$25(false, '%s.componentWillMount(): Assigning directly to this.state is ' + "deprecated (except inside a component's " + 'constructor). Use setState instead.', getComponentName_1(workInProgress));
-      }
-      updater.enqueueReplaceState(instance, instance.state, null);
-    }
+  function markRef(workInProgress) {
+    workInProgress.effectTag |= Ref;
   }
 
-  function callComponentWillReceiveProps(workInProgress, instance, newProps, newContext) {
-    {
-      startPhaseTimer$1(workInProgress, 'componentWillReceiveProps');
-    }
-    var oldState = instance.state;
-    instance.componentWillReceiveProps(newProps, newContext);
-    {
-      stopPhaseTimer$1();
+  function appendAllReturns(returns, workInProgress) {
+    var node = workInProgress.stateNode;
+    if (node) {
+      node['return'] = workInProgress;
     }
-
-    if (instance.state !== oldState) {
-      {
-        warning$25(false, '%s.componentWillReceiveProps(): Assigning directly to ' + "this.state is deprecated (except inside a component's " + 'constructor). Use setState instead.', getComponentName_1(workInProgress));
+    while (node !== null) {
+      if (node.tag === HostComponent || node.tag === HostText || node.tag === HostPortal) {
+        invariant(false, 'A call cannot have host component children.');
+      } else if (node.tag === ReturnComponent) {
+        returns.push(node.type);
+      } else if (node.child !== null) {
+        node.child['return'] = node;
+        node = node.child;
+        continue;
       }
-      updater.enqueueReplaceState(instance, instance.state, null);
+      while (node.sibling === null) {
+        if (node['return'] === null || node['return'] === workInProgress) {
+          return;
+        }
+        node = node['return'];
+      }
+      node.sibling['return'] = node['return'];
+      node = node.sibling;
     }
   }
 
-  // Invokes the mount life-cycles on a previously never rendered instance.
-  function mountClassInstance(workInProgress, priorityLevel) {
-    var current = workInProgress.alternate;
-
-    {
-      checkClassInstance(workInProgress);
-    }
-
-    var instance = workInProgress.stateNode;
-    var state = instance.state || null;
-
-    var props = workInProgress.pendingProps;
-    !props ? invariant(false, 'There must be pending props for an initial mount. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+  function moveCallToHandlerPhase(current, workInProgress, renderExpirationTime) {
+    var call = workInProgress.memoizedProps;
+    !call ? invariant(false, 'Should be resolved by now. This error is likely caused by a bug in React. Please file an issue.') : void 0;
 
-    var unmaskedContext = getUnmaskedContext$2(workInProgress);
+    // First step of the call has completed. Now we need to do the second.
+    // TODO: It would be nice to have a multi stage call represented by a
+    // single component, or at least tail call optimize nested ones. Currently
+    // that requires additional fields that we don't want to add to the fiber.
+    // So this requires nested handlers.
+    // Note: This doesn't mutate the alternate node. I don't think it needs to
+    // since this stage is reset for every pass.
+    workInProgress.tag = CallHandlerPhase;
 
-    instance.props = props;
-    instance.state = state;
-    instance.refs = emptyObject;
-    instance.context = getMaskedContext$2(workInProgress, unmaskedContext);
+    // Build up the returns.
+    // TODO: Compare this to a generator or opaque helpers like Children.
+    var returns = [];
+    appendAllReturns(returns, workInProgress);
+    var fn = call.handler;
+    var props = call.props;
+    var nextChildren = fn(props, returns);
 
-    if (ReactFeatureFlags_1.enableAsyncSubtreeAPI && workInProgress.type != null && workInProgress.type.prototype != null && workInProgress.type.prototype.unstable_isAsyncReactComponent === true) {
-      workInProgress.internalContextTag |= AsyncUpdates$1;
-    }
+    var currentFirstChild = current !== null ? current.child : null;
+    workInProgress.child = reconcileChildFibers(workInProgress, currentFirstChild, nextChildren, renderExpirationTime);
+    return workInProgress.child;
+  }
 
-    if (typeof instance.componentWillMount === 'function') {
-      callComponentWillMount(workInProgress, instance);
-      // If we had additional state updates during this life-cycle, let's
-      // process them now.
-      var updateQueue = workInProgress.updateQueue;
-      if (updateQueue !== null) {
-        instance.state = beginUpdateQueue$2(current, workInProgress, updateQueue, instance, state, props, priorityLevel);
-      }
-    }
-    if (typeof instance.componentDidMount === 'function') {
-      workInProgress.effectTag |= Update$1;
+  function appendAllChildren(parent, workInProgress) {
+    // We only have the top Fiber that was created but we need recurse down its
+    // children to find all the terminal nodes.
+    var node = workInProgress.child;
+    while (node !== null) {
+      if (node.tag === HostComponent || node.tag === HostText) {
+        appendInitialChild(parent, node.stateNode);
+      } else if (node.tag === HostPortal) {
+        // If we have a portal child, then we don't want to traverse
+        // down its children. Instead, we'll get insertions from each child in
+        // the portal directly.
+      } else if (node.child !== null) {
+        node.child['return'] = node;
+        node = node.child;
+        continue;
+      }
+      if (node === workInProgress) {
+        return;
+      }
+      while (node.sibling === null) {
+        if (node['return'] === null || node['return'] === workInProgress) {
+          return;
+        }
+        node = node['return'];
+      }
+      node.sibling['return'] = node['return'];
+      node = node.sibling;
     }
   }
 
-  // Called on a preexisting class instance. Returns false if a resumed render
-  // could be reused.
-  // function resumeMountClassInstance(
-  //   workInProgress: Fiber,
-  //   priorityLevel: PriorityLevel,
-  // ): boolean {
-  //   const instance = workInProgress.stateNode;
-  //   resetInputPointers(workInProgress, instance);
-
-  //   let newState = workInProgress.memoizedState;
-  //   let newProps = workInProgress.pendingProps;
-  //   if (!newProps) {
-  //     // If there isn't any new props, then we'll reuse the memoized props.
-  //     // This could be from already completed work.
-  //     newProps = workInProgress.memoizedProps;
-  //     invariant(
-  //       newProps != null,
-  //       'There should always be pending or memoized props. This error is ' +
-  //         'likely caused by a bug in React. Please file an issue.',
-  //     );
-  //   }
-  //   const newUnmaskedContext = getUnmaskedContext(workInProgress);
-  //   const newContext = getMaskedContext(workInProgress, newUnmaskedContext);
-
-  //   const oldContext = instance.context;
-  //   const oldProps = workInProgress.memoizedProps;
-
-  //   if (
-  //     typeof instance.componentWillReceiveProps === 'function' &&
-  //     (oldProps !== newProps || oldContext !== newContext)
-  //   ) {
-  //     callComponentWillReceiveProps(
-  //       workInProgress,
-  //       instance,
-  //       newProps,
-  //       newContext,
-  //     );
-  //   }
-
-  //   // Process the update queue before calling shouldComponentUpdate
-  //   const updateQueue = workInProgress.updateQueue;
-  //   if (updateQueue !== null) {
-  //     newState = beginUpdateQueue(
-  //       workInProgress,
-  //       updateQueue,
-  //       instance,
-  //       newState,
-  //       newProps,
-  //       priorityLevel,
-  //     );
-  //   }
-
-  //   // TODO: Should we deal with a setState that happened after the last
-  //   // componentWillMount and before this componentWillMount? Probably
-  //   // unsupported anyway.
-
-  //   if (
-  //     !checkShouldComponentUpdate(
-  //       workInProgress,
-  //       workInProgress.memoizedProps,
-  //       newProps,
-  //       workInProgress.memoizedState,
-  //       newState,
-  //       newContext,
-  //     )
-  //   ) {
-  //     // Update the existing instance's state, props, and context pointers even
-  //     // though we're bailing out.
-  //     instance.props = newProps;
-  //     instance.state = newState;
-  //     instance.context = newContext;
-  //     return false;
-  //   }
-
-  //   // Update the input pointers now so that they are correct when we call
-  //   // componentWillMount
-  //   instance.props = newProps;
-  //   instance.state = newState;
-  //   instance.context = newContext;
-
-  //   if (typeof instance.componentWillMount === 'function') {
-  //     callComponentWillMount(workInProgress, instance);
-  //     // componentWillMount may have called setState. Process the update queue.
-  //     const newUpdateQueue = workInProgress.updateQueue;
-  //     if (newUpdateQueue !== null) {
-  //       newState = beginUpdateQueue(
-  //         workInProgress,
-  //         newUpdateQueue,
-  //         instance,
-  //         newState,
-  //         newProps,
-  //         priorityLevel,
-  //       );
-  //     }
-  //   }
-
-  //   if (typeof instance.componentDidMount === 'function') {
-  //     workInProgress.effectTag |= Update;
-  //   }
-
-  //   instance.state = newState;
-
-  //   return true;
-  // }
-
-  // Invokes the update life-cycles and returns false if it shouldn't rerender.
-  function updateClassInstance(current, workInProgress, priorityLevel) {
-    var instance = workInProgress.stateNode;
-    resetInputPointers(workInProgress, instance);
-
-    var oldProps = workInProgress.memoizedProps;
-    var newProps = workInProgress.pendingProps;
-    if (!newProps) {
-      // If there aren't any new props, then we'll reuse the memoized props.
-      // This could be from already completed work.
-      newProps = oldProps;
-      !(newProps != null) ? invariant(false, 'There should always be pending or memoized props. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-    }
-    var oldContext = instance.context;
-    var newUnmaskedContext = getUnmaskedContext$2(workInProgress);
-    var newContext = getMaskedContext$2(workInProgress, newUnmaskedContext);
-
-    // Note: During these life-cycles, instance.props/instance.state are what
-    // ever the previously attempted to render - not the "current". However,
-    // during componentDidUpdate we pass the "current" props.
-
-    if (typeof instance.componentWillReceiveProps === 'function' && (oldProps !== newProps || oldContext !== newContext)) {
-      callComponentWillReceiveProps(workInProgress, instance, newProps, newContext);
+  var updateHostContainer = void 0;
+  var updateHostComponent = void 0;
+  var updateHostText = void 0;
+  if (mutation) {
+    if (enableMutatingReconciler) {
+      // Mutation mode
+      updateHostContainer = function (workInProgress) {
+        // Noop
+      };
+      updateHostComponent = function (current, workInProgress, updatePayload, type, oldProps, newProps, rootContainerInstance) {
+        // TODO: Type this specific to this type of component.
+        workInProgress.updateQueue = updatePayload;
+        // If the update payload indicates that there is a change or if there
+        // is a new ref we mark this as an update. All the work is done in commitWork.
+        if (updatePayload) {
+          markUpdate(workInProgress);
+        }
+      };
+      updateHostText = function (current, workInProgress, oldText, newText) {
+        // If the text differs, mark it as an update. All the work in done in commitWork.
+        if (oldText !== newText) {
+          markUpdate(workInProgress);
+        }
+      };
+    } else {
+      invariant(false, 'Mutating reconciler is disabled.');
+    }
+  } else if (persistence) {
+    if (enablePersistentReconciler) {
+      // Persistent host tree mode
+      var cloneInstance = persistence.cloneInstance,
+          createContainerChildSet = persistence.createContainerChildSet,
+          appendChildToContainerChildSet = persistence.appendChildToContainerChildSet,
+          finalizeContainerChildren = persistence.finalizeContainerChildren;
+
+      // An unfortunate fork of appendAllChildren because we have two different parent types.
+
+      var appendAllChildrenToContainer = function (containerChildSet, workInProgress) {
+        // We only have the top Fiber that was created but we need recurse down its
+        // children to find all the terminal nodes.
+        var node = workInProgress.child;
+        while (node !== null) {
+          if (node.tag === HostComponent || node.tag === HostText) {
+            appendChildToContainerChildSet(containerChildSet, node.stateNode);
+          } else if (node.tag === HostPortal) {
+            // If we have a portal child, then we don't want to traverse
+            // down its children. Instead, we'll get insertions from each child in
+            // the portal directly.
+          } else if (node.child !== null) {
+            node.child['return'] = node;
+            node = node.child;
+            continue;
+          }
+          if (node === workInProgress) {
+            return;
+          }
+          while (node.sibling === null) {
+            if (node['return'] === null || node['return'] === workInProgress) {
+              return;
+            }
+            node = node['return'];
+          }
+          node.sibling['return'] = node['return'];
+          node = node.sibling;
+        }
+      };
+      updateHostContainer = function (workInProgress) {
+        var portalOrRoot = workInProgress.stateNode;
+        var childrenUnchanged = workInProgress.firstEffect === null;
+        if (childrenUnchanged) {
+          // No changes, just reuse the existing instance.
+        } else {
+          var container = portalOrRoot.containerInfo;
+          var newChildSet = createContainerChildSet(container);
+          if (finalizeContainerChildren(container, newChildSet)) {
+            markUpdate(workInProgress);
+          }
+          portalOrRoot.pendingChildren = newChildSet;
+          // If children might have changed, we have to add them all to the set.
+          appendAllChildrenToContainer(newChildSet, workInProgress);
+          // Schedule an update on the container to swap out the container.
+          markUpdate(workInProgress);
+        }
+      };
+      updateHostComponent = function (current, workInProgress, updatePayload, type, oldProps, newProps, rootContainerInstance) {
+        // If there are no effects associated with this node, then none of our children had any updates.
+        // This guarantees that we can reuse all of them.
+        var childrenUnchanged = workInProgress.firstEffect === null;
+        var currentInstance = current.stateNode;
+        if (childrenUnchanged && updatePayload === null) {
+          // No changes, just reuse the existing instance.
+          // Note that this might release a previous clone.
+          workInProgress.stateNode = currentInstance;
+        } else {
+          var recyclableInstance = workInProgress.stateNode;
+          var newInstance = cloneInstance(currentInstance, updatePayload, type, oldProps, newProps, workInProgress, childrenUnchanged, recyclableInstance);
+          if (finalizeInitialChildren(newInstance, type, newProps, rootContainerInstance)) {
+            markUpdate(workInProgress);
+          }
+          workInProgress.stateNode = newInstance;
+          if (childrenUnchanged) {
+            // If there are no other effects in this tree, we need to flag this node as having one.
+            // Even though we're not going to use it for anything.
+            // Otherwise parents won't know that there are new children to propagate upwards.
+            markUpdate(workInProgress);
+          } else {
+            // If children might have changed, we have to add them all to the set.
+            appendAllChildren(newInstance, workInProgress);
+          }
+        }
+      };
+      updateHostText = function (current, workInProgress, oldText, newText) {
+        if (oldText !== newText) {
+          // If the text content differs, we'll create a new text instance for it.
+          var rootContainerInstance = getRootHostContainer();
+          var currentHostContext = getHostContext();
+          workInProgress.stateNode = createTextInstance(newText, rootContainerInstance, currentHostContext, workInProgress);
+          // We'll have to mark it as having an effect, even though we won't use the effect for anything.
+          // This lets the parents know that at least one of their children has changed.
+          markUpdate(workInProgress);
+        }
+      };
+    } else {
+      invariant(false, 'Persistent reconciler is disabled.');
     }
-
-    // Compute the next state using the memoized state and the update queue.
-    var oldState = workInProgress.memoizedState;
-    // TODO: Previous state can be null.
-    var newState = void 0;
-    if (workInProgress.updateQueue !== null) {
-      newState = beginUpdateQueue$2(current, workInProgress, workInProgress.updateQueue, instance, oldState, newProps, priorityLevel);
+  } else {
+    if (enableNoopReconciler) {
+      // No host operations
+      updateHostContainer = function (workInProgress) {
+        // Noop
+      };
+      updateHostComponent = function (current, workInProgress, updatePayload, type, oldProps, newProps, rootContainerInstance) {
+        // Noop
+      };
+      updateHostText = function (current, workInProgress, oldText, newText) {
+        // Noop
+      };
     } else {
-      newState = oldState;
+      invariant(false, 'Noop reconciler is disabled.');
     }
+  }
 
-    if (oldProps === newProps && oldState === newState && !hasContextChanged$2() && !(workInProgress.updateQueue !== null && workInProgress.updateQueue.hasForceUpdate)) {
-      // If an update was already in progress, we should schedule an Update
-      // effect even though we're bailing out, so that cWU/cDU are called.
-      if (typeof instance.componentDidUpdate === 'function') {
-        if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
-          workInProgress.effectTag |= Update$1;
-        }
-      }
-      return false;
+  function completeWork(current, workInProgress, renderExpirationTime) {
+    // Get the latest props.
+    var newProps = workInProgress.pendingProps;
+    if (newProps === null) {
+      newProps = workInProgress.memoizedProps;
+    } else if (workInProgress.expirationTime !== Never || renderExpirationTime === Never) {
+      // Reset the pending props, unless this was a down-prioritization.
+      workInProgress.pendingProps = null;
     }
 
-    var shouldUpdate = checkShouldComponentUpdate(workInProgress, oldProps, newProps, oldState, newState, newContext);
-
-    if (shouldUpdate) {
-      if (typeof instance.componentWillUpdate === 'function') {
+    switch (workInProgress.tag) {
+      case FunctionalComponent:
+        return null;
+      case ClassComponent:
         {
-          startPhaseTimer$1(workInProgress, 'componentWillUpdate');
+          // We are leaving this subtree, so pop context if any.
+          popContextProvider(workInProgress);
+          return null;
         }
-        instance.componentWillUpdate(newProps, newState, newContext);
+      case HostRoot:
         {
-          stopPhaseTimer$1();
-        }
-      }
-      if (typeof instance.componentDidUpdate === 'function') {
-        workInProgress.effectTag |= Update$1;
-      }
-    } else {
-      // If an update was already in progress, we should schedule an Update
-      // effect even though we're bailing out, so that cWU/cDU are called.
-      if (typeof instance.componentDidUpdate === 'function') {
-        if (oldProps !== current.memoizedProps || oldState !== current.memoizedState) {
-          workInProgress.effectTag |= Update$1;
+          popHostContainer(workInProgress);
+          popTopLevelContextObject(workInProgress);
+          var fiberRoot = workInProgress.stateNode;
+          if (fiberRoot.pendingContext) {
+            fiberRoot.context = fiberRoot.pendingContext;
+            fiberRoot.pendingContext = null;
+          }
+
+          if (current === null || current.child === null) {
+            // If we hydrated, pop so that we can delete any remaining children
+            // that weren't hydrated.
+            popHydrationState(workInProgress);
+            // This resets the hacky state to fix isMounted before committing.
+            // TODO: Delete this when we delete isMounted and findDOMNode.
+            workInProgress.effectTag &= ~Placement;
+          }
+          updateHostContainer(workInProgress);
+          return null;
         }
-      }
+      case HostComponent:
+        {
+          popHostContext(workInProgress);
+          var rootContainerInstance = getRootHostContainer();
+          var type = workInProgress.type;
+          if (current !== null && workInProgress.stateNode != null) {
+            // If we have an alternate, that means this is an update and we need to
+            // schedule a side-effect to do the updates.
+            var oldProps = current.memoizedProps;
+            // If we get updated because one of our children updated, we don't
+            // have newProps so we'll have to reuse them.
+            // TODO: Split the update API as separate for the props vs. children.
+            // Even better would be if children weren't special cased at all tho.
+            var instance = workInProgress.stateNode;
+            var currentHostContext = getHostContext();
+            var updatePayload = prepareUpdate(instance, type, oldProps, newProps, rootContainerInstance, currentHostContext);
 
-      // If shouldComponentUpdate returned false, we should still update the
-      // memoized props/state to indicate that this work can be reused.
-      memoizeProps(workInProgress, newProps);
-      memoizeState(workInProgress, newState);
-    }
+            updateHostComponent(current, workInProgress, updatePayload, type, oldProps, newProps, rootContainerInstance);
 
-    // Update the existing instance's state, props, and context pointers even
-    // if shouldComponentUpdate returns false.
-    instance.props = newProps;
-    instance.state = newState;
-    instance.context = newContext;
+            if (current.ref !== workInProgress.ref) {
+              markRef(workInProgress);
+            }
+          } else {
+            if (!newProps) {
+              !(workInProgress.stateNode !== null) ? invariant(false, 'We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+              // This can happen when we abort work.
+              return null;
+            }
 
-    return shouldUpdate;
+            var _currentHostContext = getHostContext();
+            // TODO: Move createInstance to beginWork and keep it on a context
+            // "stack" as the parent. Then append children as we go in beginWork
+            // or completeWork depending on we want to add then top->down or
+            // bottom->up. Top->down is faster in IE11.
+            var wasHydrated = popHydrationState(workInProgress);
+            if (wasHydrated) {
+              // TODO: Move this and createInstance step into the beginPhase
+              // to consolidate.
+              if (prepareToHydrateHostInstance(workInProgress, rootContainerInstance, _currentHostContext)) {
+                // If changes to the hydrated node needs to be applied at the
+                // commit-phase we mark this as such.
+                markUpdate(workInProgress);
+              }
+            } else {
+              var _instance = createInstance(type, newProps, rootContainerInstance, _currentHostContext, workInProgress);
+
+              appendAllChildren(_instance, workInProgress);
+
+              // Certain renderers require commit-time effects for initial mount.
+              // (eg DOM renderer supports auto-focus for certain elements).
+              // Make sure such renderers get scheduled for later work.
+              if (finalizeInitialChildren(_instance, type, newProps, rootContainerInstance)) {
+                markUpdate(workInProgress);
+              }
+              workInProgress.stateNode = _instance;
+            }
+
+            if (workInProgress.ref !== null) {
+              // If there is a ref on a host node we need to schedule a callback
+              markRef(workInProgress);
+            }
+          }
+          return null;
+        }
+      case HostText:
+        {
+          var newText = newProps;
+          if (current && workInProgress.stateNode != null) {
+            var oldText = current.memoizedProps;
+            // If we have an alternate, that means this is an update and we need
+            // to schedule a side-effect to do the updates.
+            updateHostText(current, workInProgress, oldText, newText);
+          } else {
+            if (typeof newText !== 'string') {
+              !(workInProgress.stateNode !== null) ? invariant(false, 'We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+              // This can happen when we abort work.
+              return null;
+            }
+            var _rootContainerInstance = getRootHostContainer();
+            var _currentHostContext2 = getHostContext();
+            var _wasHydrated = popHydrationState(workInProgress);
+            if (_wasHydrated) {
+              if (prepareToHydrateHostTextInstance(workInProgress)) {
+                markUpdate(workInProgress);
+              }
+            } else {
+              workInProgress.stateNode = createTextInstance(newText, _rootContainerInstance, _currentHostContext2, workInProgress);
+            }
+          }
+          return null;
+        }
+      case CallComponent:
+        return moveCallToHandlerPhase(current, workInProgress, renderExpirationTime);
+      case CallHandlerPhase:
+        // Reset the tag to now be a first phase call.
+        workInProgress.tag = CallComponent;
+        return null;
+      case ReturnComponent:
+        // Does nothing.
+        return null;
+      case Fragment:
+        return null;
+      case HostPortal:
+        popHostContainer(workInProgress);
+        updateHostContainer(workInProgress);
+        return null;
+      // Error cases
+      case IndeterminateComponent:
+        invariant(false, 'An indeterminate component should have become determinate before completing. This error is likely caused by a bug in React. Please file an issue.');
+      // eslint-disable-next-line no-fallthrough
+      default:
+        invariant(false, 'Unknown unit of work tag. This error is likely caused by a bug in React. Please file an issue.');
+    }
   }
 
   return {
-    adoptClassInstance: adoptClassInstance,
-    constructClassInstance: constructClassInstance,
-    mountClassInstance: mountClassInstance,
-    // resumeMountClassInstance,
-    updateClassInstance: updateClassInstance
+    completeWork: completeWork
   };
 };
 
-var mountChildFibersInPlace = ReactChildFiber.mountChildFibersInPlace;
-var reconcileChildFibers = ReactChildFiber.reconcileChildFibers;
-var reconcileChildFibersInPlace = ReactChildFiber.reconcileChildFibersInPlace;
-var cloneChildFibers = ReactChildFiber.cloneChildFibers;
-
-var beginUpdateQueue$1 = ReactFiberUpdateQueue.beginUpdateQueue;
+var invokeGuardedCallback$2 = ReactErrorUtils.invokeGuardedCallback;
+var hasCaughtError$1 = ReactErrorUtils.hasCaughtError;
+var clearCaughtError$1 = ReactErrorUtils.clearCaughtError;
 
 
+var ReactFiberCommitWork = function (config, captureError) {
+  var getPublicInstance = config.getPublicInstance,
+      mutation = config.mutation,
+      persistence = config.persistence;
 
-var getMaskedContext$1 = ReactFiberContext.getMaskedContext;
-var getUnmaskedContext$1 = ReactFiberContext.getUnmaskedContext;
-var hasContextChanged$1 = ReactFiberContext.hasContextChanged;
-var pushContextProvider$1 = ReactFiberContext.pushContextProvider;
-var pushTopLevelContextObject$1 = ReactFiberContext.pushTopLevelContextObject;
-var invalidateContextProvider$1 = ReactFiberContext.invalidateContextProvider;
-
-var IndeterminateComponent$2 = ReactTypeOfWork.IndeterminateComponent;
-var FunctionalComponent$1 = ReactTypeOfWork.FunctionalComponent;
-var ClassComponent$6 = ReactTypeOfWork.ClassComponent;
-var HostRoot$7 = ReactTypeOfWork.HostRoot;
-var HostComponent$7 = ReactTypeOfWork.HostComponent;
-var HostText$4 = ReactTypeOfWork.HostText;
-var HostPortal$4 = ReactTypeOfWork.HostPortal;
-var CoroutineComponent$1 = ReactTypeOfWork.CoroutineComponent;
-var CoroutineHandlerPhase = ReactTypeOfWork.CoroutineHandlerPhase;
-var YieldComponent$2 = ReactTypeOfWork.YieldComponent;
-var Fragment$2 = ReactTypeOfWork.Fragment;
-
-var NoWork$3 = ReactPriorityLevel.NoWork;
-var OffscreenPriority$1 = ReactPriorityLevel.OffscreenPriority;
-
-var PerformedWork$1 = ReactTypeOfSideEffect.PerformedWork;
-var Placement$2 = ReactTypeOfSideEffect.Placement;
-var ContentReset$1 = ReactTypeOfSideEffect.ContentReset;
-var Err$1 = ReactTypeOfSideEffect.Err;
-var Ref$1 = ReactTypeOfSideEffect.Ref;
-
-
-
-var ReactCurrentOwner$2 = ReactGlobalSharedState_1.ReactCurrentOwner;
-
-
-
-{
-  var ReactDebugCurrentFiber$4 = ReactDebugCurrentFiber_1;
-
-  var _require7 = ReactDebugFiberPerf_1,
-      cancelWorkTimer = _require7.cancelWorkTimer;
-
-  var warning$23 = require$$0;
-
-  var warnedAboutStatelessRefs = {};
-}
 
-var ReactFiberBeginWork = function (config, hostContext, hydrationContext, scheduleUpdate, getPriorityContext) {
-  var shouldSetTextContent = config.shouldSetTextContent,
-      useSyncScheduling = config.useSyncScheduling,
-      shouldDeprioritizeSubtree = config.shouldDeprioritizeSubtree;
-  var pushHostContext = hostContext.pushHostContext,
-      pushHostContainer = hostContext.pushHostContainer;
-  var enterHydrationState = hydrationContext.enterHydrationState,
-      resetHydrationState = hydrationContext.resetHydrationState,
-      tryToClaimNextHydratableInstance = hydrationContext.tryToClaimNextHydratableInstance;
+  var callComponentWillUnmountWithTimer = function (current, instance) {
+    startPhaseTimer(current, 'componentWillUnmount');
+    instance.props = current.memoizedProps;
+    instance.state = current.memoizedState;
+    instance.componentWillUnmount();
+    stopPhaseTimer();
+  };
 
-  var _ReactFiberClassCompo = ReactFiberClassComponent(scheduleUpdate, getPriorityContext, memoizeProps, memoizeState),
-      adoptClassInstance = _ReactFiberClassCompo.adoptClassInstance,
-      constructClassInstance = _ReactFiberClassCompo.constructClassInstance,
-      mountClassInstance = _ReactFiberClassCompo.mountClassInstance,
-      updateClassInstance = _ReactFiberClassCompo.updateClassInstance;
+  // Capture errors so they don't interrupt unmounting.
+  function safelyCallComponentWillUnmount(current, instance) {
+    {
+      invokeGuardedCallback$2(null, callComponentWillUnmountWithTimer, null, current, instance);
+      if (hasCaughtError$1()) {
+        var unmountError = clearCaughtError$1();
+        captureError(current, unmountError);
+      }
+    }
+  }
 
-  function reconcileChildren(current, workInProgress, nextChildren) {
-    var priorityLevel = workInProgress.pendingWorkPriority;
-    reconcileChildrenAtPriority(current, workInProgress, nextChildren, priorityLevel);
+  function safelyDetachRef(current) {
+    var ref = current.ref;
+    if (ref !== null) {
+      {
+        invokeGuardedCallback$2(null, ref, null, null);
+        if (hasCaughtError$1()) {
+          var refError = clearCaughtError$1();
+          captureError(current, refError);
+        }
+      }
+    }
   }
 
-  function reconcileChildrenAtPriority(current, workInProgress, nextChildren, priorityLevel) {
-    if (current === null) {
-      // If this is a fresh new component that hasn't been rendered yet, we
-      // won't update its child set by applying minimal side-effects. Instead,
-      // we will add them all to the child before it gets rendered. That means
-      // we can optimize this reconciliation pass by not tracking side-effects.
-      workInProgress.child = mountChildFibersInPlace(workInProgress, workInProgress.child, nextChildren, priorityLevel);
-    } else if (current.child === workInProgress.child) {
-      // If the current child is the same as the work in progress, it means that
-      // we haven't yet started any work on these children. Therefore, we use
-      // the clone algorithm to create a copy of all the current children.
+  function commitLifeCycles(current, finishedWork) {
+    switch (finishedWork.tag) {
+      case ClassComponent:
+        {
+          var instance = finishedWork.stateNode;
+          if (finishedWork.effectTag & Update) {
+            if (current === null) {
+              startPhaseTimer(finishedWork, 'componentDidMount');
+              instance.props = finishedWork.memoizedProps;
+              instance.state = finishedWork.memoizedState;
+              instance.componentDidMount();
+              stopPhaseTimer();
+            } else {
+              var prevProps = current.memoizedProps;
+              var prevState = current.memoizedState;
+              startPhaseTimer(finishedWork, 'componentDidUpdate');
+              instance.props = finishedWork.memoizedProps;
+              instance.state = finishedWork.memoizedState;
+              instance.componentDidUpdate(prevProps, prevState);
+              stopPhaseTimer();
+            }
+          }
+          var updateQueue = finishedWork.updateQueue;
+          if (updateQueue !== null) {
+            commitCallbacks(updateQueue, instance);
+          }
+          return;
+        }
+      case HostRoot:
+        {
+          var _updateQueue = finishedWork.updateQueue;
+          if (_updateQueue !== null) {
+            var _instance = finishedWork.child !== null ? finishedWork.child.stateNode : null;
+            commitCallbacks(_updateQueue, _instance);
+          }
+          return;
+        }
+      case HostComponent:
+        {
+          var _instance2 = finishedWork.stateNode;
 
-      // If we had any progressed work already, that is invalid at this point so
-      // let's throw it out.
-      workInProgress.child = reconcileChildFibers(workInProgress, workInProgress.child, nextChildren, priorityLevel);
-    } else {
-      // If, on the other hand, it is already using a clone, that means we've
-      // already begun some work on this tree and we can continue where we left
-      // off by reconciling against the existing children.
-      workInProgress.child = reconcileChildFibersInPlace(workInProgress, workInProgress.child, nextChildren, priorityLevel);
+          // Renderers may schedule work to be done after host components are mounted
+          // (eg DOM renderer may schedule auto-focus for inputs and form controls).
+          // These effects should only be committed when components are first mounted,
+          // aka when there is no current/alternate.
+          if (current === null && finishedWork.effectTag & Update) {
+            var type = finishedWork.type;
+            var props = finishedWork.memoizedProps;
+            commitMount(_instance2, type, props, finishedWork);
+          }
+
+          return;
+        }
+      case HostText:
+        {
+          // We have no life-cycles associated with text.
+          return;
+        }
+      case HostPortal:
+        {
+          // We have no life-cycles associated with portals.
+          return;
+        }
+      default:
+        {
+          invariant(false, 'This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.');
+        }
     }
   }
 
-  function updateFragment(current, workInProgress) {
-    var nextChildren = workInProgress.pendingProps;
-    if (hasContextChanged$1()) {
-      // Normally we can bail out on props equality but if context has changed
-      // we don't do the bailout and we have to reuse existing props instead.
-      if (nextChildren === null) {
-        nextChildren = workInProgress.memoizedProps;
+  function commitAttachRef(finishedWork) {
+    var ref = finishedWork.ref;
+    if (ref !== null) {
+      var instance = finishedWork.stateNode;
+      switch (finishedWork.tag) {
+        case HostComponent:
+          ref(getPublicInstance(instance));
+          break;
+        default:
+          ref(instance);
       }
-    } else if (nextChildren === null || workInProgress.memoizedProps === nextChildren) {
-      return bailoutOnAlreadyFinishedWork(current, workInProgress);
     }
-    reconcileChildren(current, workInProgress, nextChildren);
-    memoizeProps(workInProgress, nextChildren);
-    return workInProgress.child;
   }
 
-  function markRef(current, workInProgress) {
-    var ref = workInProgress.ref;
-    if (ref !== null && (!current || current.ref !== ref)) {
-      // Schedule a Ref effect
-      workInProgress.effectTag |= Ref$1;
+  function commitDetachRef(current) {
+    var currentRef = current.ref;
+    if (currentRef !== null) {
+      currentRef(null);
     }
   }
 
-  function updateFunctionalComponent(current, workInProgress) {
-    var fn = workInProgress.type;
-    var nextProps = workInProgress.pendingProps;
+  // User-originating errors (lifecycles and refs) should not interrupt
+  // deletion, so don't let them throw. Host-originating errors should
+  // interrupt deletion, so it's okay
+  function commitUnmount(current) {
+    if (typeof onCommitUnmount === 'function') {
+      onCommitUnmount(current);
+    }
 
-    var memoizedProps = workInProgress.memoizedProps;
-    if (hasContextChanged$1()) {
-      // Normally we can bail out on props equality but if context has changed
-      // we don't do the bailout and we have to reuse existing props instead.
-      if (nextProps === null) {
-        nextProps = memoizedProps;
-      }
-    } else {
-      if (nextProps === null || memoizedProps === nextProps) {
-        return bailoutOnAlreadyFinishedWork(current, workInProgress);
-      }
-      // TODO: consider bringing fn.shouldComponentUpdate() back.
-      // It used to be here.
-    }
-
-    var unmaskedContext = getUnmaskedContext$1(workInProgress);
-    var context = getMaskedContext$1(workInProgress, unmaskedContext);
-
-    var nextChildren;
-
-    {
-      ReactCurrentOwner$2.current = workInProgress;
-      ReactDebugCurrentFiber$4.setCurrentFiber(workInProgress, 'render');
-      nextChildren = fn(nextProps, context);
-      ReactDebugCurrentFiber$4.setCurrentFiber(workInProgress, null);
+    switch (current.tag) {
+      case ClassComponent:
+        {
+          safelyDetachRef(current);
+          var instance = current.stateNode;
+          if (typeof instance.componentWillUnmount === 'function') {
+            safelyCallComponentWillUnmount(current, instance);
+          }
+          return;
+        }
+      case HostComponent:
+        {
+          safelyDetachRef(current);
+          return;
+        }
+      case CallComponent:
+        {
+          commitNestedUnmounts(current.stateNode);
+          return;
+        }
+      case HostPortal:
+        {
+          // TODO: this is recursive.
+          // We are also not using this parent because
+          // the portal will get pushed immediately.
+          if (enableMutatingReconciler && mutation) {
+            unmountHostComponents(current);
+          } else if (enablePersistentReconciler && persistence) {
+            emptyPortalContainer(current);
+          }
+          return;
+        }
     }
-    // React DevTools reads this flag.
-    workInProgress.effectTag |= PerformedWork$1;
-    reconcileChildren(current, workInProgress, nextChildren);
-    memoizeProps(workInProgress, nextProps);
-    return workInProgress.child;
   }
 
-  function updateClassComponent(current, workInProgress, priorityLevel) {
-    // Push context providers early to prevent context stack mismatches.
-    // During mounting we don't know the child context yet as the instance doesn't exist.
-    // We will invalidate the child context in finishClassComponent() right after rendering.
-    var hasContext = pushContextProvider$1(workInProgress);
-
-    var shouldUpdate = void 0;
-    if (current === null) {
-      if (!workInProgress.stateNode) {
-        // In the initial pass we might need to construct the instance.
-        constructClassInstance(workInProgress, workInProgress.pendingProps);
-        mountClassInstance(workInProgress, priorityLevel);
-        shouldUpdate = true;
-      } else {
-        invariant(false, 'Resuming work not yet implemented.');
-        // In a resume, we'll already have an instance we can reuse.
-        // shouldUpdate = resumeMountClassInstance(workInProgress, priorityLevel);
+  function commitNestedUnmounts(root) {
+    // While we're inside a removed host node we don't want to call
+    // removeChild on the inner nodes because they're removed by the top
+    // call anyway. We also want to call componentWillUnmount on all
+    // composites before this host node is removed from the tree. Therefore
+    var node = root;
+    while (true) {
+      commitUnmount(node);
+      // Visit children because they may contain more composite or host nodes.
+      // Skip portals because commitUnmount() currently visits them recursively.
+      if (node.child !== null && (
+      // If we use mutation we drill down into portals using commitUnmount above.
+      // If we don't use mutation we drill down into portals here instead.
+      !mutation || node.tag !== HostPortal)) {
+        node.child['return'] = node;
+        node = node.child;
+        continue;
       }
-    } else {
-      shouldUpdate = updateClassInstance(current, workInProgress, priorityLevel);
+      if (node === root) {
+        return;
+      }
+      while (node.sibling === null) {
+        if (node['return'] === null || node['return'] === root) {
+          return;
+        }
+        node = node['return'];
+      }
+      node.sibling['return'] = node['return'];
+      node = node.sibling;
     }
-    return finishClassComponent(current, workInProgress, shouldUpdate, hasContext);
   }
 
-  function finishClassComponent(current, workInProgress, shouldUpdate, hasContext) {
-    // Refs should update even if shouldComponentUpdate returns false
-    markRef(current, workInProgress);
-
-    if (!shouldUpdate) {
-      // Context providers should defer to sCU for rendering
-      if (hasContext) {
-        invalidateContextProvider$1(workInProgress, false);
-      }
-
-      return bailoutOnAlreadyFinishedWork(current, workInProgress);
+  function detachFiber(current) {
+    // Cut off the return pointers to disconnect it from the tree. Ideally, we
+    // should clear the child pointer of the parent alternate to let this
+    // get GC:ed but we don't know which for sure which parent is the current
+    // one so we'll settle for GC:ing the subtree of this child. This child
+    // itself will be GC:ed when the parent updates the next time.
+    current['return'] = null;
+    current.child = null;
+    if (current.alternate) {
+      current.alternate.child = null;
+      current.alternate['return'] = null;
     }
+  }
 
-    var instance = workInProgress.stateNode;
-
-    // Rerender
-    ReactCurrentOwner$2.current = workInProgress;
-    var nextChildren = void 0;
-    {
-      ReactDebugCurrentFiber$4.setCurrentFiber(workInProgress, 'render');
-      nextChildren = instance.render();
-      ReactDebugCurrentFiber$4.setCurrentFiber(workInProgress, null);
-    }
-    // React DevTools reads this flag.
-    workInProgress.effectTag |= PerformedWork$1;
-    reconcileChildren(current, workInProgress, nextChildren);
-    // Memoize props and state using the values we just used to render.
-    // TODO: Restructure so we never read values from the instance.
-    memoizeState(workInProgress, instance.state);
-    memoizeProps(workInProgress, instance.props);
+  if (!mutation) {
+    var commitContainer = void 0;
+    if (persistence) {
+      var replaceContainerChildren = persistence.replaceContainerChildren,
+          createContainerChildSet = persistence.createContainerChildSet;
 
-    // The context might have changed so we need to recalculate it.
-    if (hasContext) {
-      invalidateContextProvider$1(workInProgress, true);
-    }
+      var emptyPortalContainer = function (current) {
+        var portal = current.stateNode;
+        var containerInfo = portal.containerInfo;
 
-    return workInProgress.child;
-  }
+        var emptyChildSet = createContainerChildSet(containerInfo);
+        replaceContainerChildren(containerInfo, emptyChildSet);
+      };
+      commitContainer = function (finishedWork) {
+        switch (finishedWork.tag) {
+          case ClassComponent:
+            {
+              return;
+            }
+          case HostComponent:
+            {
+              return;
+            }
+          case HostText:
+            {
+              return;
+            }
+          case HostRoot:
+          case HostPortal:
+            {
+              var portalOrRoot = finishedWork.stateNode;
+              var containerInfo = portalOrRoot.containerInfo,
+                  _pendingChildren = portalOrRoot.pendingChildren;
 
-  function pushHostRootContext(workInProgress) {
-    var root = workInProgress.stateNode;
-    if (root.pendingContext) {
-      pushTopLevelContextObject$1(workInProgress, root.pendingContext, root.pendingContext !== root.context);
-    } else if (root.context) {
-      // Should always be set
-      pushTopLevelContextObject$1(workInProgress, root.context, false);
+              replaceContainerChildren(containerInfo, _pendingChildren);
+              return;
+            }
+          default:
+            {
+              invariant(false, 'This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.');
+            }
+        }
+      };
+    } else {
+      commitContainer = function (finishedWork) {
+        // Noop
+      };
+    }
+    if (enablePersistentReconciler || enableNoopReconciler) {
+      return {
+        commitResetTextContent: function (finishedWork) {},
+        commitPlacement: function (finishedWork) {},
+        commitDeletion: function (current) {
+          // Detach refs and call componentWillUnmount() on the whole subtree.
+          commitNestedUnmounts(current);
+          detachFiber(current);
+        },
+        commitWork: function (current, finishedWork) {
+          commitContainer(finishedWork);
+        },
+
+        commitLifeCycles: commitLifeCycles,
+        commitAttachRef: commitAttachRef,
+        commitDetachRef: commitDetachRef
+      };
+    } else if (persistence) {
+      invariant(false, 'Persistent reconciler is disabled.');
+    } else {
+      invariant(false, 'Noop reconciler is disabled.');
     }
-    pushHostContainer(workInProgress, root.containerInfo);
   }
+  var commitMount = mutation.commitMount,
+      commitUpdate = mutation.commitUpdate,
+      resetTextContent = mutation.resetTextContent,
+      commitTextUpdate = mutation.commitTextUpdate,
+      appendChild = mutation.appendChild,
+      appendChildToContainer = mutation.appendChildToContainer,
+      insertBefore = mutation.insertBefore,
+      insertInContainerBefore = mutation.insertInContainerBefore,
+      removeChild = mutation.removeChild,
+      removeChildFromContainer = mutation.removeChildFromContainer;
 
-  function updateHostRoot(current, workInProgress, priorityLevel) {
-    pushHostRootContext(workInProgress);
-    var updateQueue = workInProgress.updateQueue;
-    if (updateQueue !== null) {
-      var prevState = workInProgress.memoizedState;
-      var state = beginUpdateQueue$1(current, workInProgress, updateQueue, null, prevState, null, priorityLevel);
-      if (prevState === state) {
-        // If the state is the same as before, that's a bailout because we had
-        // no work matching this priority.
-        resetHydrationState();
-        return bailoutOnAlreadyFinishedWork(current, workInProgress);
-      }
-      var element = state.element;
-      if ((current === null || current.child === null) && enterHydrationState(workInProgress)) {
-        // If we don't have any current children this might be the first pass.
-        // We always try to hydrate. If this isn't a hydration pass there won't
-        // be any children to hydrate which is effectively the same thing as
-        // not hydrating.
-
-        // This is a bit of a hack. We track the host root as a placement to
-        // know that we're currently in a mounting state. That way isMounted
-        // works as expected. We must reset this before committing.
-        // TODO: Delete this when we delete isMounted and findDOMNode.
-        workInProgress.effectTag |= Placement$2;
 
-        // Ensure that children mount into this root without tracking
-        // side-effects. This ensures that we don't store Placement effects on
-        // nodes that will be hydrated.
-        workInProgress.child = mountChildFibersInPlace(workInProgress, workInProgress.child, element, priorityLevel);
-      } else {
-        // Otherwise reset hydration state in case we aborted and resumed another
-        // root.
-        resetHydrationState();
-        reconcileChildren(current, workInProgress, element);
+  function getHostParentFiber(fiber) {
+    var parent = fiber['return'];
+    while (parent !== null) {
+      if (isHostParent(parent)) {
+        return parent;
       }
-      memoizeState(workInProgress, state);
-      return workInProgress.child;
+      parent = parent['return'];
     }
-    resetHydrationState();
-    // If there is no update queue, that's a bailout because the root has no props.
-    return bailoutOnAlreadyFinishedWork(current, workInProgress);
+    invariant(false, 'Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue.');
   }
 
-  function updateHostComponent(current, workInProgress, renderPriority) {
-    pushHostContext(workInProgress);
+  function isHostParent(fiber) {
+    return fiber.tag === HostComponent || fiber.tag === HostRoot || fiber.tag === HostPortal;
+  }
 
-    if (current === null) {
-      tryToClaimNextHydratableInstance(workInProgress);
+  function getHostSibling(fiber) {
+    // We're going to search forward into the tree until we find a sibling host
+    // node. Unfortunately, if multiple insertions are done in a row we have to
+    // search past them. This leads to exponential search for the next sibling.
+    var node = fiber;
+    siblings: while (true) {
+      // If we didn't find anything, let's try the next sibling.
+      while (node.sibling === null) {
+        if (node['return'] === null || isHostParent(node['return'])) {
+          // If we pop out of the root or hit the parent the fiber we are the
+          // last sibling.
+          return null;
+        }
+        node = node['return'];
+      }
+      node.sibling['return'] = node['return'];
+      node = node.sibling;
+      while (node.tag !== HostComponent && node.tag !== HostText) {
+        // If it is not host node and, we might have a host node inside it.
+        // Try to search down until we find one.
+        if (node.effectTag & Placement) {
+          // If we don't have a child, try the siblings instead.
+          continue siblings;
+        }
+        // If we don't have a child, try the siblings instead.
+        // We also skip portals because they are not part of this host tree.
+        if (node.child === null || node.tag === HostPortal) {
+          continue siblings;
+        } else {
+          node.child['return'] = node;
+          node = node.child;
+        }
+      }
+      // Check if this host node is stable or about to be placed.
+      if (!(node.effectTag & Placement)) {
+        // Found it!
+        return node.stateNode;
+      }
     }
+  }
 
-    var type = workInProgress.type;
-    var memoizedProps = workInProgress.memoizedProps;
-    var nextProps = workInProgress.pendingProps;
-    if (nextProps === null) {
-      nextProps = memoizedProps;
-      !(nextProps !== null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+  function commitPlacement(finishedWork) {
+    // Recursively insert all host nodes into the parent.
+    var parentFiber = getHostParentFiber(finishedWork);
+    var parent = void 0;
+    var isContainer = void 0;
+    switch (parentFiber.tag) {
+      case HostComponent:
+        parent = parentFiber.stateNode;
+        isContainer = false;
+        break;
+      case HostRoot:
+        parent = parentFiber.stateNode.containerInfo;
+        isContainer = true;
+        break;
+      case HostPortal:
+        parent = parentFiber.stateNode.containerInfo;
+        isContainer = true;
+        break;
+      default:
+        invariant(false, 'Invalid host parent fiber. This error is likely caused by a bug in React. Please file an issue.');
     }
-    var prevProps = current !== null ? current.memoizedProps : null;
-
-    if (hasContextChanged$1()) {
-      // Normally we can bail out on props equality but if context has changed
-      // we don't do the bailout and we have to reuse existing props instead.
-    } else if (nextProps === null || memoizedProps === nextProps) {
-      return bailoutOnAlreadyFinishedWork(current, workInProgress);
+    if (parentFiber.effectTag & ContentReset) {
+      // Reset the text content of the parent before doing any insertions
+      resetTextContent(parent);
+      // Clear ContentReset from the effect tag
+      parentFiber.effectTag &= ~ContentReset;
     }
 
-    var nextChildren = nextProps.children;
-    var isDirectTextChild = shouldSetTextContent(type, nextProps);
-
-    if (isDirectTextChild) {
-      // We special case a direct text child of a host node. This is a common
-      // case. We won't handle it as a reified child. We will instead handle
-      // this in the host environment that also have access to this prop. That
-      // avoids allocating another HostText fiber and traversing it.
-      nextChildren = null;
-    } else if (prevProps && shouldSetTextContent(type, prevProps)) {
-      // If we're switching from a direct text child to a normal child, or to
-      // empty, we need to schedule the text content to be reset.
-      workInProgress.effectTag |= ContentReset$1;
+    var before = getHostSibling(finishedWork);
+    // We only have the top Fiber that was inserted but we need recurse down its
+    // children to find all the terminal nodes.
+    var node = finishedWork;
+    while (true) {
+      if (node.tag === HostComponent || node.tag === HostText) {
+        if (before) {
+          if (isContainer) {
+            insertInContainerBefore(parent, node.stateNode, before);
+          } else {
+            insertBefore(parent, node.stateNode, before);
+          }
+        } else {
+          if (isContainer) {
+            appendChildToContainer(parent, node.stateNode);
+          } else {
+            appendChild(parent, node.stateNode);
+          }
+        }
+      } else if (node.tag === HostPortal) {
+        // If the insertion itself is a portal, then we don't want to traverse
+        // down its children. Instead, we'll get insertions from each child in
+        // the portal directly.
+      } else if (node.child !== null) {
+        node.child['return'] = node;
+        node = node.child;
+        continue;
+      }
+      if (node === finishedWork) {
+        return;
+      }
+      while (node.sibling === null) {
+        if (node['return'] === null || node['return'] === finishedWork) {
+          return;
+        }
+        node = node['return'];
+      }
+      node.sibling['return'] = node['return'];
+      node = node.sibling;
     }
+  }
 
-    markRef(current, workInProgress);
+  function unmountHostComponents(current) {
+    // We only have the top Fiber that was inserted but we need recurse down its
+    var node = current;
 
-    // Check the host config to see if the children are offscreen/hidden.
-    if (renderPriority !== OffscreenPriority$1 && !useSyncScheduling && shouldDeprioritizeSubtree(type, nextProps)) {
-      // Down-prioritize the children.
-      workInProgress.pendingWorkPriority = OffscreenPriority$1;
-      // Bailout and come back to this fiber later at OffscreenPriority.
-      return null;
+    // Each iteration, currentParent is populated with node's host parent if not
+    // currentParentIsValid.
+    var currentParentIsValid = false;
+    var currentParent = void 0;
+    var currentParentIsContainer = void 0;
+
+    while (true) {
+      if (!currentParentIsValid) {
+        var parent = node['return'];
+        findParent: while (true) {
+          !(parent !== null) ? invariant(false, 'Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+          switch (parent.tag) {
+            case HostComponent:
+              currentParent = parent.stateNode;
+              currentParentIsContainer = false;
+              break findParent;
+            case HostRoot:
+              currentParent = parent.stateNode.containerInfo;
+              currentParentIsContainer = true;
+              break findParent;
+            case HostPortal:
+              currentParent = parent.stateNode.containerInfo;
+              currentParentIsContainer = true;
+              break findParent;
+          }
+          parent = parent['return'];
+        }
+        currentParentIsValid = true;
+      }
+
+      if (node.tag === HostComponent || node.tag === HostText) {
+        commitNestedUnmounts(node);
+        // After all the children have unmounted, it is now safe to remove the
+        // node from the tree.
+        if (currentParentIsContainer) {
+          removeChildFromContainer(currentParent, node.stateNode);
+        } else {
+          removeChild(currentParent, node.stateNode);
+        }
+        // Don't visit children because we already visited them.
+      } else if (node.tag === HostPortal) {
+        // When we go into a portal, it becomes the parent to remove from.
+        // We will reassign it back when we pop the portal on the way up.
+        currentParent = node.stateNode.containerInfo;
+        // Visit children because portals might contain host components.
+        if (node.child !== null) {
+          node.child['return'] = node;
+          node = node.child;
+          continue;
+        }
+      } else {
+        commitUnmount(node);
+        // Visit children because we may find more host components below.
+        if (node.child !== null) {
+          node.child['return'] = node;
+          node = node.child;
+          continue;
+        }
+      }
+      if (node === current) {
+        return;
+      }
+      while (node.sibling === null) {
+        if (node['return'] === null || node['return'] === current) {
+          return;
+        }
+        node = node['return'];
+        if (node.tag === HostPortal) {
+          // When we go out of the portal, we need to restore the parent.
+          // Since we don't keep a stack of them, we will search for it.
+          currentParentIsValid = false;
+        }
+      }
+      node.sibling['return'] = node['return'];
+      node = node.sibling;
     }
+  }
 
-    reconcileChildren(current, workInProgress, nextChildren);
-    memoizeProps(workInProgress, nextProps);
-    return workInProgress.child;
+  function commitDeletion(current) {
+    // Recursively delete all host nodes from the parent.
+    // Detach refs and call componentWillUnmount() on the whole subtree.
+    unmountHostComponents(current);
+    detachFiber(current);
   }
 
-  function updateHostText(current, workInProgress) {
-    if (current === null) {
-      tryToClaimNextHydratableInstance(workInProgress);
-    }
-    var nextProps = workInProgress.pendingProps;
-    if (nextProps === null) {
-      nextProps = workInProgress.memoizedProps;
+  function commitWork(current, finishedWork) {
+    switch (finishedWork.tag) {
+      case ClassComponent:
+        {
+          return;
+        }
+      case HostComponent:
+        {
+          var instance = finishedWork.stateNode;
+          if (instance != null) {
+            // Commit the work prepared earlier.
+            var newProps = finishedWork.memoizedProps;
+            // For hydration we reuse the update path but we treat the oldProps
+            // as the newProps. The updatePayload will contain the real change in
+            // this case.
+            var oldProps = current !== null ? current.memoizedProps : newProps;
+            var type = finishedWork.type;
+            // TODO: Type the updateQueue to be specific to host components.
+            var updatePayload = finishedWork.updateQueue;
+            finishedWork.updateQueue = null;
+            if (updatePayload !== null) {
+              commitUpdate(instance, updatePayload, type, oldProps, newProps, finishedWork);
+            }
+          }
+          return;
+        }
+      case HostText:
+        {
+          !(finishedWork.stateNode !== null) ? invariant(false, 'This should have a text node initialized. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+          var textInstance = finishedWork.stateNode;
+          var newText = finishedWork.memoizedProps;
+          // For hydration we reuse the update path but we treat the oldProps
+          // as the newProps. The updatePayload will contain the real change in
+          // this case.
+          var oldText = current !== null ? current.memoizedProps : newText;
+          commitTextUpdate(textInstance, oldText, newText);
+          return;
+        }
+      case HostRoot:
+        {
+          return;
+        }
+      default:
+        {
+          invariant(false, 'This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.');
+        }
     }
-    memoizeProps(workInProgress, nextProps);
-    // Nothing to do here. This is terminal. We'll do the completion step
-    // immediately after.
-    return null;
   }
 
-  function mountIndeterminateComponent(current, workInProgress, priorityLevel) {
-    !(current === null) ? invariant(false, 'An indeterminate component should never have mounted. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-    var fn = workInProgress.type;
-    var props = workInProgress.pendingProps;
-    var unmaskedContext = getUnmaskedContext$1(workInProgress);
-    var context = getMaskedContext$1(workInProgress, unmaskedContext);
+  function commitResetTextContent(current) {
+    resetTextContent(current.stateNode);
+  }
 
-    var value;
+  if (enableMutatingReconciler) {
+    return {
+      commitResetTextContent: commitResetTextContent,
+      commitPlacement: commitPlacement,
+      commitDeletion: commitDeletion,
+      commitWork: commitWork,
+      commitLifeCycles: commitLifeCycles,
+      commitAttachRef: commitAttachRef,
+      commitDetachRef: commitDetachRef
+    };
+  } else {
+    invariant(false, 'Mutating reconciler is disabled.');
+  }
+};
 
-    {
-      ReactCurrentOwner$2.current = workInProgress;
-      value = fn(props, context);
-    }
-    // React DevTools reads this flag.
-    workInProgress.effectTag |= PerformedWork$1;
+var NO_CONTEXT = {};
 
-    if (typeof value === 'object' && value !== null && typeof value.render === 'function') {
-      // Proceed under the assumption that this is a class instance
-      workInProgress.tag = ClassComponent$6;
+var ReactFiberHostContext = function (config) {
+  var getChildHostContext = config.getChildHostContext,
+      getRootHostContext = config.getRootHostContext;
 
-      // Push context providers early to prevent context stack mismatches.
-      // During mounting we don't know the child context yet as the instance doesn't exist.
-      // We will invalidate the child context in finishClassComponent() right after rendering.
-      var hasContext = pushContextProvider$1(workInProgress);
-      adoptClassInstance(workInProgress, value);
-      mountClassInstance(workInProgress, priorityLevel);
-      return finishClassComponent(current, workInProgress, true, hasContext);
-    } else {
-      // Proceed under the assumption that this is a functional component
-      workInProgress.tag = FunctionalComponent$1;
-      {
-        var Component = workInProgress.type;
 
-        if (Component) {
-          warning$23(!Component.childContextTypes, '%s(...): childContextTypes cannot be defined on a functional component.', Component.displayName || Component.name || 'Component');
-        }
-        if (workInProgress.ref !== null) {
-          var info = '';
-          var ownerName = ReactDebugCurrentFiber$4.getCurrentFiberOwnerName();
-          if (ownerName) {
-            info += '\n\nCheck the render method of `' + ownerName + '`.';
-          }
+  var contextStackCursor = createCursor(NO_CONTEXT);
+  var contextFiberStackCursor = createCursor(NO_CONTEXT);
+  var rootInstanceStackCursor = createCursor(NO_CONTEXT);
 
-          var warningKey = ownerName || workInProgress._debugID || '';
-          var debugSource = workInProgress._debugSource;
-          if (debugSource) {
-            warningKey = debugSource.fileName + ':' + debugSource.lineNumber;
-          }
-          if (!warnedAboutStatelessRefs[warningKey]) {
-            warnedAboutStatelessRefs[warningKey] = true;
-            warning$23(false, 'Stateless function components cannot be given refs. ' + 'Attempts to access this ref will fail.%s%s', info, ReactDebugCurrentFiber$4.getCurrentFiberStackAddendum());
-          }
-        }
-      }
-      reconcileChildren(current, workInProgress, value);
-      memoizeProps(workInProgress, props);
-      return workInProgress.child;
-    }
+  function requiredContext(c) {
+    !(c !== NO_CONTEXT) ? invariant(false, 'Expected host context to exist. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    return c;
   }
 
-  function updateCoroutineComponent(current, workInProgress) {
-    var nextCoroutine = workInProgress.pendingProps;
-    if (hasContextChanged$1()) {
-      // Normally we can bail out on props equality but if context has changed
-      // we don't do the bailout and we have to reuse existing props instead.
-      if (nextCoroutine === null) {
-        nextCoroutine = current && current.memoizedProps;
-        !(nextCoroutine !== null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-      }
-    } else if (nextCoroutine === null || workInProgress.memoizedProps === nextCoroutine) {
-      nextCoroutine = workInProgress.memoizedProps;
-      // TODO: When bailing out, we might need to return the stateNode instead
-      // of the child. To check it for work.
-      // return bailoutOnAlreadyFinishedWork(current, workInProgress);
-    }
+  function getRootHostContainer() {
+    var rootInstance = requiredContext(rootInstanceStackCursor.current);
+    return rootInstance;
+  }
 
-    var nextChildren = nextCoroutine.children;
-    var priorityLevel = workInProgress.pendingWorkPriority;
+  function pushHostContainer(fiber, nextRootInstance) {
+    // Push current root instance onto the stack;
+    // This allows us to reset root when portals are popped.
+    push(rootInstanceStackCursor, nextRootInstance, fiber);
 
-    // The following is a fork of reconcileChildrenAtPriority but using
-    // stateNode to store the child.
-    if (current === null) {
-      workInProgress.stateNode = mountChildFibersInPlace(workInProgress, workInProgress.stateNode, nextChildren, priorityLevel);
-    } else if (current.child === workInProgress.child) {
-      workInProgress.stateNode = reconcileChildFibers(workInProgress, workInProgress.stateNode, nextChildren, priorityLevel);
-    } else {
-      workInProgress.stateNode = reconcileChildFibersInPlace(workInProgress, workInProgress.stateNode, nextChildren, priorityLevel);
-    }
+    var nextRootContext = getRootHostContext(nextRootInstance);
 
-    memoizeProps(workInProgress, nextCoroutine);
-    // This doesn't take arbitrary time so we could synchronously just begin
-    // eagerly do the work of workInProgress.child as an optimization.
-    return workInProgress.stateNode;
-  }
-
-  function updatePortalComponent(current, workInProgress) {
-    pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
-    var priorityLevel = workInProgress.pendingWorkPriority;
-    var nextChildren = workInProgress.pendingProps;
-    if (hasContextChanged$1()) {
-      // Normally we can bail out on props equality but if context has changed
-      // we don't do the bailout and we have to reuse existing props instead.
-      if (nextChildren === null) {
-        nextChildren = current && current.memoizedProps;
-        !(nextChildren != null) ? invariant(false, 'We should always have pending or current props. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-      }
-    } else if (nextChildren === null || workInProgress.memoizedProps === nextChildren) {
-      return bailoutOnAlreadyFinishedWork(current, workInProgress);
-    }
-
-    if (current === null) {
-      // Portals are special because we don't append the children during mount
-      // but at commit. Therefore we need to track insertions which the normal
-      // flow doesn't do during mount. This doesn't happen at the root because
-      // the root always starts with a "current" with a null child.
-      // TODO: Consider unifying this with how the root works.
-      workInProgress.child = reconcileChildFibersInPlace(workInProgress, workInProgress.child, nextChildren, priorityLevel);
-      memoizeProps(workInProgress, nextChildren);
-    } else {
-      reconcileChildren(current, workInProgress, nextChildren);
-      memoizeProps(workInProgress, nextChildren);
-    }
-    return workInProgress.child;
+    // Track the context and the Fiber that provided it.
+    // This enables us to pop only Fibers that provide unique contexts.
+    push(contextFiberStackCursor, fiber, fiber);
+    push(contextStackCursor, nextRootContext, fiber);
   }
 
-  /*
-  function reuseChildrenEffects(returnFiber : Fiber, firstChild : Fiber) {
-    let child = firstChild;
-    do {
-      // Ensure that the first and last effect of the parent corresponds
-      // to the children's first and last effect.
-      if (!returnFiber.firstEffect) {
-        returnFiber.firstEffect = child.firstEffect;
-      }
-      if (child.lastEffect) {
-        if (returnFiber.lastEffect) {
-          returnFiber.lastEffect.nextEffect = child.firstEffect;
-        }
-        returnFiber.lastEffect = child.lastEffect;
-      }
-    } while (child = child.sibling);
+  function popHostContainer(fiber) {
+    pop(contextStackCursor, fiber);
+    pop(contextFiberStackCursor, fiber);
+    pop(rootInstanceStackCursor, fiber);
   }
-  */
-
-  function bailoutOnAlreadyFinishedWork(current, workInProgress) {
-    {
-      cancelWorkTimer(workInProgress);
-    }
-
-    // TODO: We should ideally be able to bail out early if the children have no
-    // more work to do. However, since we don't have a separation of this
-    // Fiber's priority and its children yet - we don't know without doing lots
-    // of the same work we do anyway. Once we have that separation we can just
-    // bail out here if the children has no more work at this priority level.
-    // if (workInProgress.priorityOfChildren <= priorityLevel) {
-    //   // If there are side-effects in these children that have not yet been
-    //   // committed we need to ensure that they get properly transferred up.
-    //   if (current && current.child !== workInProgress.child) {
-    //     reuseChildrenEffects(workInProgress, child);
-    //   }
-    //   return null;
-    // }
 
-    cloneChildFibers(current, workInProgress);
-    return workInProgress.child;
+  function getHostContext() {
+    var context = requiredContext(contextStackCursor.current);
+    return context;
   }
 
-  function bailoutOnLowPriority(current, workInProgress) {
-    {
-      cancelWorkTimer(workInProgress);
-    }
+  function pushHostContext(fiber) {
+    var rootInstance = requiredContext(rootInstanceStackCursor.current);
+    var context = requiredContext(contextStackCursor.current);
+    var nextContext = getChildHostContext(context, fiber.type, rootInstance);
 
-    // TODO: Handle HostComponent tags here as well and call pushHostContext()?
-    // See PR 8590 discussion for context
-    switch (workInProgress.tag) {
-      case HostRoot$7:
-        pushHostRootContext(workInProgress);
-        break;
-      case ClassComponent$6:
-        pushContextProvider$1(workInProgress);
-        break;
-      case HostPortal$4:
-        pushHostContainer(workInProgress, workInProgress.stateNode.containerInfo);
-        break;
+    // Don't push this Fiber's context unless it's unique.
+    if (context === nextContext) {
+      return;
     }
-    // TODO: What if this is currently in progress?
-    // How can that happen? How is this not being cloned?
-    return null;
-  }
-
-  // TODO: Delete memoizeProps/State and move to reconcile/bailout instead
-  function memoizeProps(workInProgress, nextProps) {
-    workInProgress.memoizedProps = nextProps;
-  }
 
-  function memoizeState(workInProgress, nextState) {
-    workInProgress.memoizedState = nextState;
-    // Don't reset the updateQueue, in case there are pending updates. Resetting
-    // is handled by beginUpdateQueue.
+    // Track the context and the Fiber that provided it.
+    // This enables us to pop only Fibers that provide unique contexts.
+    push(contextFiberStackCursor, fiber, fiber);
+    push(contextStackCursor, nextContext, fiber);
   }
 
-  function beginWork(current, workInProgress, priorityLevel) {
-    if (workInProgress.pendingWorkPriority === NoWork$3 || workInProgress.pendingWorkPriority > priorityLevel) {
-      return bailoutOnLowPriority(current, workInProgress);
-    }
-
-    {
-      ReactDebugCurrentFiber$4.setCurrentFiber(workInProgress, null);
+  function popHostContext(fiber) {
+    // Do not pop unless this Fiber provided the current context.
+    // pushHostContext() only pushes Fibers that provide unique contexts.
+    if (contextFiberStackCursor.current !== fiber) {
+      return;
     }
 
-    switch (workInProgress.tag) {
-      case IndeterminateComponent$2:
-        return mountIndeterminateComponent(current, workInProgress, priorityLevel);
-      case FunctionalComponent$1:
-        return updateFunctionalComponent(current, workInProgress);
-      case ClassComponent$6:
-        return updateClassComponent(current, workInProgress, priorityLevel);
-      case HostRoot$7:
-        return updateHostRoot(current, workInProgress, priorityLevel);
-      case HostComponent$7:
-        return updateHostComponent(current, workInProgress, priorityLevel);
-      case HostText$4:
-        return updateHostText(current, workInProgress);
-      case CoroutineHandlerPhase:
-        // This is a restart. Reset the tag to the initial phase.
-        workInProgress.tag = CoroutineComponent$1;
-      // Intentionally fall through since this is now the same.
-      case CoroutineComponent$1:
-        return updateCoroutineComponent(current, workInProgress);
-      case YieldComponent$2:
-        // A yield component is just a placeholder, we can just run through the
-        // next one immediately.
-        return null;
-      case HostPortal$4:
-        return updatePortalComponent(current, workInProgress);
-      case Fragment$2:
-        return updateFragment(current, workInProgress);
-      default:
-        invariant(false, 'Unknown unit of work tag. This error is likely caused by a bug in React. Please file an issue.');
-    }
+    pop(contextStackCursor, fiber);
+    pop(contextFiberStackCursor, fiber);
   }
 
-  function beginFailedWork(current, workInProgress, priorityLevel) {
-    // Push context providers here to avoid a push/pop context mismatch.
-    switch (workInProgress.tag) {
-      case ClassComponent$6:
-        pushContextProvider$1(workInProgress);
-        break;
-      case HostRoot$7:
-        pushHostRootContext(workInProgress);
-        break;
-      default:
-        invariant(false, 'Invalid type of work. This error is likely caused by a bug in React. Please file an issue.');
-    }
-
-    // Add an error effect so we can handle the error during the commit phase
-    workInProgress.effectTag |= Err$1;
-
-    // This is a weird case where we do "resume" work — work that failed on
-    // our first attempt. Because we no longer have a notion of "progressed
-    // deletions," reset the child to the current child to make sure we delete
-    // it again. TODO: Find a better way to handle this, perhaps during a more
-    // general overhaul of error handling.
-    if (current === null) {
-      workInProgress.child = null;
-    } else if (workInProgress.child !== current.child) {
-      workInProgress.child = current.child;
-    }
-
-    if (workInProgress.pendingWorkPriority === NoWork$3 || workInProgress.pendingWorkPriority > priorityLevel) {
-      return bailoutOnLowPriority(current, workInProgress);
-    }
-
-    // If we don't bail out, we're going be recomputing our children so we need
-    // to drop our effect list.
-    workInProgress.firstEffect = null;
-    workInProgress.lastEffect = null;
-
-    // Unmount the current children as if the component rendered null
-    var nextChildren = null;
-    reconcileChildrenAtPriority(current, workInProgress, nextChildren, priorityLevel);
-
-    if (workInProgress.tag === ClassComponent$6) {
-      var instance = workInProgress.stateNode;
-      workInProgress.memoizedProps = instance.props;
-      workInProgress.memoizedState = instance.state;
-    }
-
-    return workInProgress.child;
+  function resetHostContainer() {
+    contextStackCursor.current = NO_CONTEXT;
+    rootInstanceStackCursor.current = NO_CONTEXT;
   }
 
   return {
-    beginWork: beginWork,
-    beginFailedWork: beginFailedWork
+    getHostContext: getHostContext,
+    getRootHostContainer: getRootHostContainer,
+    popHostContainer: popHostContainer,
+    popHostContext: popHostContext,
+    pushHostContainer: pushHostContainer,
+    pushHostContext: pushHostContext,
+    resetHostContainer: resetHostContainer
   };
 };
 
-var reconcileChildFibers$2 = ReactChildFiber.reconcileChildFibers;
-
-var popContextProvider$2 = ReactFiberContext.popContextProvider;
-var popTopLevelContextObject$1 = ReactFiberContext.popTopLevelContextObject;
-
-
-
-
-var IndeterminateComponent$3 = ReactTypeOfWork.IndeterminateComponent;
-var FunctionalComponent$3 = ReactTypeOfWork.FunctionalComponent;
-var ClassComponent$8 = ReactTypeOfWork.ClassComponent;
-var HostRoot$8 = ReactTypeOfWork.HostRoot;
-var HostComponent$8 = ReactTypeOfWork.HostComponent;
-var HostText$6 = ReactTypeOfWork.HostText;
-var HostPortal$6 = ReactTypeOfWork.HostPortal;
-var CoroutineComponent$3 = ReactTypeOfWork.CoroutineComponent;
-var CoroutineHandlerPhase$1 = ReactTypeOfWork.CoroutineHandlerPhase;
-var YieldComponent$4 = ReactTypeOfWork.YieldComponent;
-var Fragment$4 = ReactTypeOfWork.Fragment;
-var Placement$4 = ReactTypeOfSideEffect.Placement;
-var Ref$2 = ReactTypeOfSideEffect.Ref;
-var Update$2 = ReactTypeOfSideEffect.Update;
-var OffscreenPriority$2 = ReactPriorityLevel.OffscreenPriority;
-
-
-{
-  var ReactDebugCurrentFiber$5 = ReactDebugCurrentFiber_1;
-}
+var ReactFiberHydrationContext = function (config) {
+  var shouldSetTextContent = config.shouldSetTextContent,
+      hydration = config.hydration;
 
+  // If this doesn't have hydration mode.
 
+  if (!hydration) {
+    return {
+      enterHydrationState: function () {
+        return false;
+      },
+      resetHydrationState: function () {},
+      tryToClaimNextHydratableInstance: function () {},
+      prepareToHydrateHostInstance: function () {
+        invariant(false, 'Expected prepareToHydrateHostInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.');
+      },
+      prepareToHydrateHostTextInstance: function () {
+        invariant(false, 'Expected prepareToHydrateHostTextInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.');
+      },
+      popHydrationState: function (fiber) {
+        return false;
+      }
+    };
+  }
 
-var ReactFiberCompleteWork = function (config, hostContext, hydrationContext) {
-  var createInstance = config.createInstance,
-      createTextInstance = config.createTextInstance,
-      appendInitialChild = config.appendInitialChild,
-      finalizeInitialChildren = config.finalizeInitialChildren,
-      prepareUpdate = config.prepareUpdate;
-  var getRootHostContainer = hostContext.getRootHostContainer,
-      popHostContext = hostContext.popHostContext,
-      getHostContext = hostContext.getHostContext,
-      popHostContainer = hostContext.popHostContainer;
-  var prepareToHydrateHostInstance = hydrationContext.prepareToHydrateHostInstance,
-      prepareToHydrateHostTextInstance = hydrationContext.prepareToHydrateHostTextInstance,
-      popHydrationState = hydrationContext.popHydrationState;
+  var canHydrateInstance = hydration.canHydrateInstance,
+      canHydrateTextInstance = hydration.canHydrateTextInstance,
+      getNextHydratableSibling = hydration.getNextHydratableSibling,
+      getFirstHydratableChild = hydration.getFirstHydratableChild,
+      hydrateInstance = hydration.hydrateInstance,
+      hydrateTextInstance = hydration.hydrateTextInstance,
+      didNotMatchHydratedContainerTextInstance = hydration.didNotMatchHydratedContainerTextInstance,
+      didNotMatchHydratedTextInstance = hydration.didNotMatchHydratedTextInstance,
+      didNotHydrateContainerInstance = hydration.didNotHydrateContainerInstance,
+      didNotHydrateInstance = hydration.didNotHydrateInstance,
+      didNotFindHydratableContainerInstance = hydration.didNotFindHydratableContainerInstance,
+      didNotFindHydratableContainerTextInstance = hydration.didNotFindHydratableContainerTextInstance,
+      didNotFindHydratableInstance = hydration.didNotFindHydratableInstance,
+      didNotFindHydratableTextInstance = hydration.didNotFindHydratableTextInstance;
 
+  // The deepest Fiber on the stack involved in a hydration context.
+  // This may have been an insertion or a hydration.
 
-  function markUpdate(workInProgress) {
-    // Tag the fiber with an update effect. This turns a Placement into
-    // an UpdateAndPlacement.
-    workInProgress.effectTag |= Update$2;
-  }
+  var hydrationParentFiber = null;
+  var nextHydratableInstance = null;
+  var isHydrating = false;
 
-  function markRef(workInProgress) {
-    workInProgress.effectTag |= Ref$2;
+  function enterHydrationState(fiber) {
+    var parentInstance = fiber.stateNode.containerInfo;
+    nextHydratableInstance = getFirstHydratableChild(parentInstance);
+    hydrationParentFiber = fiber;
+    isHydrating = true;
+    return true;
   }
 
-  function appendAllYields(yields, workInProgress) {
-    var node = workInProgress.stateNode;
-    if (node) {
-      node['return'] = workInProgress;
-    }
-    while (node !== null) {
-      if (node.tag === HostComponent$8 || node.tag === HostText$6 || node.tag === HostPortal$6) {
-        invariant(false, 'A coroutine cannot have host component children.');
-      } else if (node.tag === YieldComponent$4) {
-        yields.push(node.type);
-      } else if (node.child !== null) {
-        node.child['return'] = node;
-        node = node.child;
-        continue;
-      }
-      while (node.sibling === null) {
-        if (node['return'] === null || node['return'] === workInProgress) {
-          return;
-        }
-        node = node['return'];
+  function deleteHydratableInstance(returnFiber, instance) {
+    {
+      switch (returnFiber.tag) {
+        case HostRoot:
+          didNotHydrateContainerInstance(returnFiber.stateNode.containerInfo, instance);
+          break;
+        case HostComponent:
+          didNotHydrateInstance(returnFiber.type, returnFiber.memoizedProps, returnFiber.stateNode, instance);
+          break;
       }
-      node.sibling['return'] = node['return'];
-      node = node.sibling;
     }
-  }
-
-  function moveCoroutineToHandlerPhase(current, workInProgress) {
-    var coroutine = workInProgress.memoizedProps;
-    !coroutine ? invariant(false, 'Should be resolved by now. This error is likely caused by a bug in React. Please file an issue.') : void 0;
 
-    // First step of the coroutine has completed. Now we need to do the second.
-    // TODO: It would be nice to have a multi stage coroutine represented by a
-    // single component, or at least tail call optimize nested ones. Currently
-    // that requires additional fields that we don't want to add to the fiber.
-    // So this requires nested handlers.
-    // Note: This doesn't mutate the alternate node. I don't think it needs to
-    // since this stage is reset for every pass.
-    workInProgress.tag = CoroutineHandlerPhase$1;
-
-    // Build up the yields.
-    // TODO: Compare this to a generator or opaque helpers like Children.
-    var yields = [];
-    appendAllYields(yields, workInProgress);
-    var fn = coroutine.handler;
-    var props = coroutine.props;
-    var nextChildren = fn(props, yields);
+    var childToDelete = createFiberFromHostInstanceForDeletion();
+    childToDelete.stateNode = instance;
+    childToDelete['return'] = returnFiber;
+    childToDelete.effectTag = Deletion;
 
-    var currentFirstChild = current !== null ? current.child : null;
-    // Inherit the priority of the returnFiber.
-    var priority = workInProgress.pendingWorkPriority;
-    workInProgress.child = reconcileChildFibers$2(workInProgress, currentFirstChild, nextChildren, priority);
-    return workInProgress.child;
+    // This might seem like it belongs on progressedFirstDeletion. However,
+    // these children are not part of the reconciliation list of children.
+    // Even if we abort and rereconcile the children, that will try to hydrate
+    // again and the nodes are still in the host tree so these will be
+    // recreated.
+    if (returnFiber.lastEffect !== null) {
+      returnFiber.lastEffect.nextEffect = childToDelete;
+      returnFiber.lastEffect = childToDelete;
+    } else {
+      returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
+    }
   }
 
-  function appendAllChildren(parent, workInProgress) {
-    // We only have the top Fiber that was created but we need recurse down its
-    // children to find all the terminal nodes.
-    var node = workInProgress.child;
-    while (node !== null) {
-      if (node.tag === HostComponent$8 || node.tag === HostText$6) {
-        appendInitialChild(parent, node.stateNode);
-      } else if (node.tag === HostPortal$6) {
-        // If we have a portal child, then we don't want to traverse
-        // down its children. Instead, we'll get insertions from each child in
-        // the portal directly.
-      } else if (node.child !== null) {
-        node = node.child;
-        continue;
-      }
-      if (node === workInProgress) {
-        return;
-      }
-      while (node.sibling === null) {
-        if (node['return'] === null || node['return'] === workInProgress) {
+  function insertNonHydratedInstance(returnFiber, fiber) {
+    fiber.effectTag |= Placement;
+    {
+      switch (returnFiber.tag) {
+        case HostRoot:
+          {
+            var parentContainer = returnFiber.stateNode.containerInfo;
+            switch (fiber.tag) {
+              case HostComponent:
+                var type = fiber.type;
+                var props = fiber.pendingProps;
+                didNotFindHydratableContainerInstance(parentContainer, type, props);
+                break;
+              case HostText:
+                var text = fiber.pendingProps;
+                didNotFindHydratableContainerTextInstance(parentContainer, text);
+                break;
+            }
+            break;
+          }
+        case HostComponent:
+          {
+            var parentType = returnFiber.type;
+            var parentProps = returnFiber.memoizedProps;
+            var parentInstance = returnFiber.stateNode;
+            switch (fiber.tag) {
+              case HostComponent:
+                var _type = fiber.type;
+                var _props = fiber.pendingProps;
+                didNotFindHydratableInstance(parentType, parentProps, parentInstance, _type, _props);
+                break;
+              case HostText:
+                var _text = fiber.pendingProps;
+                didNotFindHydratableTextInstance(parentType, parentProps, parentInstance, _text);
+                break;
+            }
+            break;
+          }
+        default:
           return;
-        }
-        node = node['return'];
       }
-      node = node.sibling;
     }
   }
 
-  function completeWork(current, workInProgress, renderPriority) {
-    {
-      ReactDebugCurrentFiber$5.setCurrentFiber(workInProgress, null);
-    }
-
-    // Get the latest props.
-    var newProps = workInProgress.pendingProps;
-    if (newProps === null) {
-      newProps = workInProgress.memoizedProps;
-    } else if (workInProgress.pendingWorkPriority !== OffscreenPriority$2 || renderPriority === OffscreenPriority$2) {
-      // Reset the pending props, unless this was a down-prioritization.
-      workInProgress.pendingProps = null;
-    }
-
-    switch (workInProgress.tag) {
-      case FunctionalComponent$3:
-        return null;
-      case ClassComponent$8:
+  function tryHydrate(fiber, nextInstance) {
+    switch (fiber.tag) {
+      case HostComponent:
         {
-          // We are leaving this subtree, so pop context if any.
-          popContextProvider$2(workInProgress);
-          return null;
+          var type = fiber.type;
+          var props = fiber.pendingProps;
+          var instance = canHydrateInstance(nextInstance, type, props);
+          if (instance !== null) {
+            fiber.stateNode = instance;
+            return true;
+          }
+          return false;
         }
-      case HostRoot$8:
+      case HostText:
         {
-          popHostContainer(workInProgress);
-          popTopLevelContextObject$1(workInProgress);
-          var fiberRoot = workInProgress.stateNode;
-          if (fiberRoot.pendingContext) {
-            fiberRoot.context = fiberRoot.pendingContext;
-            fiberRoot.pendingContext = null;
-          }
-
-          if (current === null || current.child === null) {
-            // If we hydrated, pop so that we can delete any remaining children
-            // that weren't hydrated.
-            popHydrationState(workInProgress);
-            // This resets the hacky state to fix isMounted before committing.
-            // TODO: Delete this when we delete isMounted and findDOMNode.
-            workInProgress.effectTag &= ~Placement$4;
+          var text = fiber.pendingProps;
+          var textInstance = canHydrateTextInstance(nextInstance, text);
+          if (textInstance !== null) {
+            fiber.stateNode = textInstance;
+            return true;
           }
-          return null;
+          return false;
         }
-      case HostComponent$8:
-        {
-          popHostContext(workInProgress);
-          var rootContainerInstance = getRootHostContainer();
-          var type = workInProgress.type;
-          if (current !== null && workInProgress.stateNode != null) {
-            // If we have an alternate, that means this is an update and we need to
-            // schedule a side-effect to do the updates.
-            var oldProps = current.memoizedProps;
-            // If we get updated because one of our children updated, we don't
-            // have newProps so we'll have to reuse them.
-            // TODO: Split the update API as separate for the props vs. children.
-            // Even better would be if children weren't special cased at all tho.
-            var instance = workInProgress.stateNode;
-            var currentHostContext = getHostContext();
-            var updatePayload = prepareUpdate(instance, type, oldProps, newProps, rootContainerInstance, currentHostContext);
-
-            // TODO: Type this specific to this type of component.
-            workInProgress.updateQueue = updatePayload;
-            // If the update payload indicates that there is a change or if there
-            // is a new ref we mark this as an update.
-            if (updatePayload) {
-              markUpdate(workInProgress);
-            }
-            if (current.ref !== workInProgress.ref) {
-              markRef(workInProgress);
-            }
-          } else {
-            if (!newProps) {
-              !(workInProgress.stateNode !== null) ? invariant(false, 'We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-              // This can happen when we abort work.
-              return null;
-            }
+      default:
+        return false;
+    }
+  }
 
-            var _currentHostContext = getHostContext();
-            // TODO: Move createInstance to beginWork and keep it on a context
-            // "stack" as the parent. Then append children as we go in beginWork
-            // or completeWork depending on we want to add then top->down or
-            // bottom->up. Top->down is faster in IE11.
-            var wasHydrated = popHydrationState(workInProgress);
-            if (wasHydrated) {
-              // TOOD: Move this and createInstance step into the beginPhase
-              // to consolidate.
-              if (prepareToHydrateHostInstance(workInProgress, rootContainerInstance, _currentHostContext)) {
-                // If changes to the hydrated node needs to be applied at the
-                // commit-phase we mark this as such.
-                markUpdate(workInProgress);
-              }
-            } else {
-              var _instance = createInstance(type, newProps, rootContainerInstance, _currentHostContext, workInProgress);
+  function tryToClaimNextHydratableInstance(fiber) {
+    if (!isHydrating) {
+      return;
+    }
+    var nextInstance = nextHydratableInstance;
+    if (!nextInstance) {
+      // Nothing to hydrate. Make it an insertion.
+      insertNonHydratedInstance(hydrationParentFiber, fiber);
+      isHydrating = false;
+      hydrationParentFiber = fiber;
+      return;
+    }
+    if (!tryHydrate(fiber, nextInstance)) {
+      // If we can't hydrate this instance let's try the next one.
+      // We use this as a heuristic. It's based on intuition and not data so it
+      // might be flawed or unnecessary.
+      nextInstance = getNextHydratableSibling(nextInstance);
+      if (!nextInstance || !tryHydrate(fiber, nextInstance)) {
+        // Nothing to hydrate. Make it an insertion.
+        insertNonHydratedInstance(hydrationParentFiber, fiber);
+        isHydrating = false;
+        hydrationParentFiber = fiber;
+        return;
+      }
+      // We matched the next one, we'll now assume that the first one was
+      // superfluous and we'll delete it. Since we can't eagerly delete it
+      // we'll have to schedule a deletion. To do that, this node needs a dummy
+      // fiber associated with it.
+      deleteHydratableInstance(hydrationParentFiber, nextHydratableInstance);
+    }
+    hydrationParentFiber = fiber;
+    nextHydratableInstance = getFirstHydratableChild(nextInstance);
+  }
 
-              appendAllChildren(_instance, workInProgress);
+  function prepareToHydrateHostInstance(fiber, rootContainerInstance, hostContext) {
+    var instance = fiber.stateNode;
+    var updatePayload = hydrateInstance(instance, fiber.type, fiber.memoizedProps, rootContainerInstance, hostContext, fiber);
+    // TODO: Type this specific to this type of component.
+    fiber.updateQueue = updatePayload;
+    // If the update payload indicates that there is a change or if there
+    // is a new ref we mark this as an update.
+    if (updatePayload !== null) {
+      return true;
+    }
+    return false;
+  }
 
-              // Certain renderers require commit-time effects for initial mount.
-              // (eg DOM renderer supports auto-focus for certain elements).
-              // Make sure such renderers get scheduled for later work.
-              if (finalizeInitialChildren(_instance, type, newProps, rootContainerInstance)) {
-                markUpdate(workInProgress);
+  function prepareToHydrateHostTextInstance(fiber) {
+    var textInstance = fiber.stateNode;
+    var textContent = fiber.memoizedProps;
+    var shouldUpdate = hydrateTextInstance(textInstance, textContent, fiber);
+    {
+      if (shouldUpdate) {
+        // We assume that prepareToHydrateHostTextInstance is called in a context where the
+        // hydration parent is the parent host component of this host text.
+        var returnFiber = hydrationParentFiber;
+        if (returnFiber !== null) {
+          switch (returnFiber.tag) {
+            case HostRoot:
+              {
+                var parentContainer = returnFiber.stateNode.containerInfo;
+                didNotMatchHydratedContainerTextInstance(parentContainer, textInstance, textContent);
+                break;
               }
-              workInProgress.stateNode = _instance;
-            }
-
-            if (workInProgress.ref !== null) {
-              // If there is a ref on a host node we need to schedule a callback
-              markRef(workInProgress);
-            }
-          }
-          return null;
-        }
-      case HostText$6:
-        {
-          var newText = newProps;
-          if (current && workInProgress.stateNode != null) {
-            var oldText = current.memoizedProps;
-            // If we have an alternate, that means this is an update and we need
-            // to schedule a side-effect to do the updates.
-            if (oldText !== newText) {
-              markUpdate(workInProgress);
-            }
-          } else {
-            if (typeof newText !== 'string') {
-              !(workInProgress.stateNode !== null) ? invariant(false, 'We must have new props for new mounts. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-              // This can happen when we abort work.
-              return null;
-            }
-            var _rootContainerInstance = getRootHostContainer();
-            var _currentHostContext2 = getHostContext();
-            var _wasHydrated = popHydrationState(workInProgress);
-            if (_wasHydrated) {
-              if (prepareToHydrateHostTextInstance(workInProgress)) {
-                markUpdate(workInProgress);
+            case HostComponent:
+              {
+                var parentType = returnFiber.type;
+                var parentProps = returnFiber.memoizedProps;
+                var parentInstance = returnFiber.stateNode;
+                didNotMatchHydratedTextInstance(parentType, parentProps, parentInstance, textInstance, textContent);
+                break;
               }
-            } else {
-              workInProgress.stateNode = createTextInstance(newText, _rootContainerInstance, _currentHostContext2, workInProgress);
-            }
           }
-          return null;
         }
-      case CoroutineComponent$3:
-        return moveCoroutineToHandlerPhase(current, workInProgress);
-      case CoroutineHandlerPhase$1:
-        // Reset the tag to now be a first phase coroutine.
-        workInProgress.tag = CoroutineComponent$3;
-        return null;
-      case YieldComponent$4:
-        // Does nothing.
-        return null;
-      case Fragment$4:
-        return null;
-      case HostPortal$6:
-        // TODO: Only mark this as an update if we have any pending callbacks.
-        markUpdate(workInProgress);
-        popHostContainer(workInProgress);
-        return null;
-      // Error cases
-      case IndeterminateComponent$3:
-        invariant(false, 'An indeterminate component should have become determinate before completing. This error is likely caused by a bug in React. Please file an issue.');
-      // eslint-disable-next-line no-fallthrough
-      default:
-        invariant(false, 'Unknown unit of work tag. This error is likely caused by a bug in React. Please file an issue.');
+      }
     }
+    return shouldUpdate;
   }
 
-  return {
-    completeWork: completeWork
-  };
-};
+  function popToNextHostParent(fiber) {
+    var parent = fiber['return'];
+    while (parent !== null && parent.tag !== HostComponent && parent.tag !== HostRoot) {
+      parent = parent['return'];
+    }
+    hydrationParentFiber = parent;
+  }
 
-{
-  var warning$26 = require$$0;
-}
+  function popHydrationState(fiber) {
+    if (fiber !== hydrationParentFiber) {
+      // We're deeper than the current hydration context, inside an inserted
+      // tree.
+      return false;
+    }
+    if (!isHydrating) {
+      // If we're not currently hydrating but we're in a hydration context, then
+      // we were an insertion and now need to pop up reenter hydration of our
+      // siblings.
+      popToNextHostParent(fiber);
+      isHydrating = true;
+      return false;
+    }
 
-var onCommitFiberRoot = null;
-var onCommitFiberUnmount = null;
-var hasLoggedError = false;
+    var type = fiber.type;
 
-function catchErrors(fn) {
-  return function (arg) {
-    try {
-      return fn(arg);
-    } catch (err) {
-      if (true && !hasLoggedError) {
-        hasLoggedError = true;
-        warning$26(false, 'React DevTools encountered an error: %s', err);
+    // If we have any remaining hydratable nodes, we need to delete them now.
+    // We only do this deeper than head and body since they tend to have random
+    // other nodes in them. We also ignore components with pure text content in
+    // side of them.
+    // TODO: Better heuristic.
+    if (fiber.tag !== HostComponent || type !== 'head' && type !== 'body' && !shouldSetTextContent(type, fiber.memoizedProps)) {
+      var nextInstance = nextHydratableInstance;
+      while (nextInstance) {
+        deleteHydratableInstance(fiber, nextInstance);
+        nextInstance = getNextHydratableSibling(nextInstance);
       }
     }
-  };
-}
 
-function injectInternals$1(internals) {
-  if (typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ === 'undefined') {
-    // No DevTools
-    return false;
-  }
-  var hook = __REACT_DEVTOOLS_GLOBAL_HOOK__;
-  if (!hook.supportsFiber) {
-    {
-      warning$26(false, 'The installed version of React DevTools is too old and will not work ' + 'with the current version of React. Please update React DevTools. ' + 'https://fb.me/react-devtools');
-    }
-    // DevTools exists, even though it doesn't support Fiber.
+    popToNextHostParent(fiber);
+    nextHydratableInstance = hydrationParentFiber ? getNextHydratableSibling(fiber.stateNode) : null;
     return true;
   }
-  try {
-    var rendererID = hook.inject(internals);
-    // We have successfully injected, so now it is safe to set up hooks.
-    onCommitFiberRoot = catchErrors(function (root) {
-      return hook.onCommitFiberRoot(rendererID, root);
-    });
-    onCommitFiberUnmount = catchErrors(function (fiber) {
-      return hook.onCommitFiberUnmount(rendererID, fiber);
-    });
-  } catch (err) {
-    // Catch all errors because it is unsafe to throw during initialization.
-    {
-      warning$26(false, 'React DevTools encountered an error: %s.', err);
-    }
-  }
-  // DevTools exists
-  return true;
-}
 
-function onCommitRoot$1(root) {
-  if (typeof onCommitFiberRoot === 'function') {
-    onCommitFiberRoot(root);
+  function resetHydrationState() {
+    hydrationParentFiber = null;
+    nextHydratableInstance = null;
+    isHydrating = false;
   }
-}
 
-function onCommitUnmount$1(fiber) {
-  if (typeof onCommitFiberUnmount === 'function') {
-    onCommitFiberUnmount(fiber);
-  }
-}
+  return {
+    enterHydrationState: enterHydrationState,
+    resetHydrationState: resetHydrationState,
+    tryToClaimNextHydratableInstance: tryToClaimNextHydratableInstance,
+    prepareToHydrateHostInstance: prepareToHydrateHostInstance,
+    prepareToHydrateHostTextInstance: prepareToHydrateHostTextInstance,
+    popHydrationState: popHydrationState
+  };
+};
+
+// This lets us hook into Fiber to debug what it's doing.
+// See https://github.com/facebook/react/pull/8033.
+// This is not part of the public API, not even for React DevTools.
+// You may only inject a debugTool if you work on React Fiber itself.
+var ReactFiberInstrumentation = {
+  debugTool: null
+};
 
-var injectInternals_1 = injectInternals$1;
-var onCommitRoot_1 = onCommitRoot$1;
-var onCommitUnmount_1 = onCommitUnmount$1;
+var ReactFiberInstrumentation_1 = ReactFiberInstrumentation;
 
-var ReactFiberDevToolsHook = {
-	injectInternals: injectInternals_1,
-	onCommitRoot: onCommitRoot_1,
-	onCommitUnmount: onCommitUnmount_1
+var defaultShowDialog = function (capturedError) {
+  return true;
 };
 
-var ClassComponent$9 = ReactTypeOfWork.ClassComponent;
-var HostRoot$9 = ReactTypeOfWork.HostRoot;
-var HostComponent$9 = ReactTypeOfWork.HostComponent;
-var HostText$7 = ReactTypeOfWork.HostText;
-var HostPortal$7 = ReactTypeOfWork.HostPortal;
-var CoroutineComponent$4 = ReactTypeOfWork.CoroutineComponent;
+var showDialog = defaultShowDialog;
+
+function logCapturedError(capturedError) {
+  var logError = showDialog(capturedError);
 
-var commitCallbacks$1 = ReactFiberUpdateQueue.commitCallbacks;
+  // Allow injected showDialog() to prevent default console.error logging.
+  // This enables renderers like ReactNative to better manage redbox behavior.
+  if (logError === false) {
+    return;
+  }
 
-var onCommitUnmount = ReactFiberDevToolsHook.onCommitUnmount;
+  var error = capturedError.error;
+  var suppressLogging = error && error.suppressReactErrorLogging;
+  if (suppressLogging) {
+    return;
+  }
 
-var invokeGuardedCallback$2 = ReactErrorUtils_1.invokeGuardedCallback;
-var hasCaughtError$1 = ReactErrorUtils_1.hasCaughtError;
-var clearCaughtError$1 = ReactErrorUtils_1.clearCaughtError;
+  {
+    var componentName = capturedError.componentName,
+        componentStack = capturedError.componentStack,
+        errorBoundaryName = capturedError.errorBoundaryName,
+        errorBoundaryFound = capturedError.errorBoundaryFound,
+        willRetry = capturedError.willRetry;
 
-var Placement$5 = ReactTypeOfSideEffect.Placement;
-var Update$3 = ReactTypeOfSideEffect.Update;
-var Callback$1 = ReactTypeOfSideEffect.Callback;
-var ContentReset$2 = ReactTypeOfSideEffect.ContentReset;
 
+    var componentNameMessage = componentName ? 'The above error occurred in the <' + componentName + '> component:' : 'The above error occurred in one of your React components:';
 
+    var errorBoundaryMessage = void 0;
+    // errorBoundaryFound check is sufficient; errorBoundaryName check is to satisfy Flow.
+    if (errorBoundaryFound && errorBoundaryName) {
+      if (willRetry) {
+        errorBoundaryMessage = 'React will try to recreate this component tree from scratch ' + ('using the error boundary you provided, ' + errorBoundaryName + '.');
+      } else {
+        errorBoundaryMessage = 'This error was initially handled by the error boundary ' + errorBoundaryName + '.\n' + 'Recreating the tree from scratch failed so React will unmount the tree.';
+      }
+    } else {
+      errorBoundaryMessage = 'Consider adding an error boundary to your tree to customize error handling behavior.\n' + 'Visit https://fb.me/react-error-boundaries to learn more about error boundaries.';
+    }
+    var combinedMessage = '' + componentNameMessage + componentStack + '\n\n' + ('' + errorBoundaryMessage);
 
-{
-  var _require5$1 = ReactDebugFiberPerf_1,
-      startPhaseTimer$2 = _require5$1.startPhaseTimer,
-      stopPhaseTimer$2 = _require5$1.stopPhaseTimer;
+    // In development, we provide our own message with just the component stack.
+    // We don't include the original error message and JS stack because the browser
+    // has already printed it. Even if the application swallows the error, it is still
+    // displayed by the browser thanks to the DEV-only fake event trick in ReactErrorUtils.
+    console.error(combinedMessage);
+  }
 }
 
-var ReactFiberCommitWork = function (config, captureError) {
-  var commitMount = config.commitMount,
-      commitUpdate = config.commitUpdate,
-      resetTextContent = config.resetTextContent,
-      commitTextUpdate = config.commitTextUpdate,
-      appendChild = config.appendChild,
-      appendChildToContainer = config.appendChildToContainer,
-      insertBefore = config.insertBefore,
-      insertInContainerBefore = config.insertInContainerBefore,
-      removeChild = config.removeChild,
-      removeChildFromContainer = config.removeChildFromContainer,
-      getPublicInstance = config.getPublicInstance;
+var invokeGuardedCallback$1 = ReactErrorUtils.invokeGuardedCallback;
+var hasCaughtError = ReactErrorUtils.hasCaughtError;
+var clearCaughtError = ReactErrorUtils.clearCaughtError;
 
 
-  {
-    var callComponentWillUnmountWithTimerInDev = function (current, instance) {
-      startPhaseTimer$2(current, 'componentWillUnmount');
-      instance.props = current.memoizedProps;
-      instance.state = current.memoizedState;
-      instance.componentWillUnmount();
-      stopPhaseTimer$2();
-    };
-  }
+{
+  var didWarnAboutStateTransition = false;
+  var didWarnSetStateChildContext = false;
+  var didWarnStateUpdateForUnmountedComponent = {};
 
-  // Capture errors so they don't interrupt unmounting.
-  function safelyCallComponentWillUnmount(current, instance) {
-    {
-      invokeGuardedCallback$2(null, callComponentWillUnmountWithTimerInDev, null, current, instance);
-      if (hasCaughtError$1()) {
-        var unmountError = clearCaughtError$1();
-        captureError(current, unmountError);
-      }
+  var warnAboutUpdateOnUnmounted = function (fiber) {
+    var componentName = getComponentName(fiber) || 'ReactClass';
+    if (didWarnStateUpdateForUnmountedComponent[componentName]) {
+      return;
     }
-  }
+    warning(false, 'Can only update a mounted or mounting ' + 'component. This usually means you called setState, replaceState, ' + 'or forceUpdate on an unmounted component. This is a no-op.\n\nPlease ' + 'check the code for the %s component.', componentName);
+    didWarnStateUpdateForUnmountedComponent[componentName] = true;
+  };
 
-  function safelyDetachRef(current) {
-    var ref = current.ref;
-    if (ref !== null) {
-      {
-        invokeGuardedCallback$2(null, ref, null, null);
-        if (hasCaughtError$1()) {
-          var refError = clearCaughtError$1();
-          captureError(current, refError);
+  var warnAboutInvalidUpdates = function (instance) {
+    switch (ReactDebugCurrentFiber.phase) {
+      case 'getChildContext':
+        if (didWarnSetStateChildContext) {
+          return;
         }
-      }
+        warning(false, 'setState(...): Cannot call setState() inside getChildContext()');
+        didWarnSetStateChildContext = true;
+        break;
+      case 'render':
+        if (didWarnAboutStateTransition) {
+          return;
+        }
+        warning(false, 'Cannot update during an existing state transition (such as within ' + "`render` or another component's constructor). Render methods should " + 'be a pure function of props and state; constructor side-effects are ' + 'an anti-pattern, but can be moved to `componentWillMount`.');
+        didWarnAboutStateTransition = true;
+        break;
     }
+  };
+}
+
+var ReactFiberScheduler = function (config) {
+  var hostContext = ReactFiberHostContext(config);
+  var hydrationContext = ReactFiberHydrationContext(config);
+  var popHostContainer = hostContext.popHostContainer,
+      popHostContext = hostContext.popHostContext,
+      resetHostContainer = hostContext.resetHostContainer;
+
+  var _ReactFiberBeginWork = ReactFiberBeginWork(config, hostContext, hydrationContext, scheduleWork, computeExpirationForFiber),
+      beginWork = _ReactFiberBeginWork.beginWork,
+      beginFailedWork = _ReactFiberBeginWork.beginFailedWork;
+
+  var _ReactFiberCompleteWo = ReactFiberCompleteWork(config, hostContext, hydrationContext),
+      completeWork = _ReactFiberCompleteWo.completeWork;
+
+  var _ReactFiberCommitWork = ReactFiberCommitWork(config, captureError),
+      commitResetTextContent = _ReactFiberCommitWork.commitResetTextContent,
+      commitPlacement = _ReactFiberCommitWork.commitPlacement,
+      commitDeletion = _ReactFiberCommitWork.commitDeletion,
+      commitWork = _ReactFiberCommitWork.commitWork,
+      commitLifeCycles = _ReactFiberCommitWork.commitLifeCycles,
+      commitAttachRef = _ReactFiberCommitWork.commitAttachRef,
+      commitDetachRef = _ReactFiberCommitWork.commitDetachRef;
+
+  var now = config.now,
+      scheduleDeferredCallback = config.scheduleDeferredCallback,
+      cancelDeferredCallback = config.cancelDeferredCallback,
+      useSyncScheduling = config.useSyncScheduling,
+      prepareForCommit = config.prepareForCommit,
+      resetAfterCommit = config.resetAfterCommit;
+
+  // Represents the current time in ms.
+
+  var startTime = now();
+  var mostRecentCurrentTime = msToExpirationTime(0);
+
+  // Represents the expiration time that incoming updates should use. (If this
+  // is NoWork, use the default strategy: async updates in async mode, sync
+  // updates in sync mode.)
+  var expirationContext = NoWork;
+
+  var isWorking = false;
+
+  // The next work in progress fiber that we're currently working on.
+  var nextUnitOfWork = null;
+  var nextRoot = null;
+  // The time at which we're currently rendering work.
+  var nextRenderExpirationTime = NoWork;
+
+  // The next fiber with an effect that we're currently committing.
+  var nextEffect = null;
+
+  // Keep track of which fibers have captured an error that need to be handled.
+  // Work is removed from this collection after componentDidCatch is called.
+  var capturedErrors = null;
+  // Keep track of which fibers have failed during the current batch of work.
+  // This is a different set than capturedErrors, because it is not reset until
+  // the end of the batch. This is needed to propagate errors correctly if a
+  // subtree fails more than once.
+  var failedBoundaries = null;
+  // Error boundaries that captured an error during the current commit.
+  var commitPhaseBoundaries = null;
+  var firstUncaughtError = null;
+  var didFatal = false;
+
+  var isCommitting = false;
+  var isUnmounting = false;
+
+  // Used for performance tracking.
+  var interruptedBy = null;
+
+  function resetContextStack() {
+    // Reset the stack
+    reset$1();
+    // Reset the cursors
+    resetContext();
+    resetHostContainer();
   }
 
-  function getHostParentFiber(fiber) {
-    var parent = fiber['return'];
-    while (parent !== null) {
-      if (isHostParent(parent)) {
-        return parent;
+  function commitAllHostEffects() {
+    while (nextEffect !== null) {
+      {
+        ReactDebugCurrentFiber.setCurrentFiber(nextEffect);
       }
-      parent = parent['return'];
-    }
-    invariant(false, 'Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue.');
-  }
+      recordEffect();
 
-  function isHostParent(fiber) {
-    return fiber.tag === HostComponent$9 || fiber.tag === HostRoot$9 || fiber.tag === HostPortal$7;
-  }
+      var effectTag = nextEffect.effectTag;
+      if (effectTag & ContentReset) {
+        commitResetTextContent(nextEffect);
+      }
 
-  function getHostSibling(fiber) {
-    // We're going to search forward into the tree until we find a sibling host
-    // node. Unfortunately, if multiple insertions are done in a row we have to
-    // search past them. This leads to exponential search for the next sibling.
-    var node = fiber;
-    siblings: while (true) {
-      // If we didn't find anything, let's try the next sibling.
-      while (node.sibling === null) {
-        if (node['return'] === null || isHostParent(node['return'])) {
-          // If we pop out of the root or hit the parent the fiber we are the
-          // last sibling.
-          return null;
+      if (effectTag & Ref) {
+        var current = nextEffect.alternate;
+        if (current !== null) {
+          commitDetachRef(current);
         }
-        node = node['return'];
       }
-      node.sibling['return'] = node['return'];
-      node = node.sibling;
-      while (node.tag !== HostComponent$9 && node.tag !== HostText$7) {
-        // If it is not host node and, we might have a host node inside it.
-        // Try to search down until we find one.
-        if (node.effectTag & Placement$5) {
-          // If we don't have a child, try the siblings instead.
-          continue siblings;
-        }
-        // If we don't have a child, try the siblings instead.
-        // We also skip portals because they are not part of this host tree.
-        if (node.child === null || node.tag === HostPortal$7) {
-          continue siblings;
-        } else {
-          node.child['return'] = node;
-          node = node.child;
-        }
-      }
-      // Check if this host node is stable or about to be placed.
-      if (!(node.effectTag & Placement$5)) {
-        // Found it!
-        return node.stateNode;
-      }
-    }
-  }
 
-  function commitPlacement(finishedWork) {
-    // Recursively insert all host nodes into the parent.
-    var parentFiber = getHostParentFiber(finishedWork);
-    var parent = void 0;
-    var isContainer = void 0;
-    switch (parentFiber.tag) {
-      case HostComponent$9:
-        parent = parentFiber.stateNode;
-        isContainer = false;
-        break;
-      case HostRoot$9:
-        parent = parentFiber.stateNode.containerInfo;
-        isContainer = true;
-        break;
-      case HostPortal$7:
-        parent = parentFiber.stateNode.containerInfo;
-        isContainer = true;
-        break;
-      default:
-        invariant(false, 'Invalid host parent fiber. This error is likely caused by a bug in React. Please file an issue.');
-    }
-    if (parentFiber.effectTag & ContentReset$2) {
-      // Reset the text content of the parent before doing any insertions
-      resetTextContent(parent);
-      // Clear ContentReset from the effect tag
-      parentFiber.effectTag &= ~ContentReset$2;
-    }
+      // The following switch statement is only concerned about placement,
+      // updates, and deletions. To avoid needing to add a case for every
+      // possible bitmap value, we remove the secondary effects from the
+      // effect tag and switch on that value.
+      var primaryEffectTag = effectTag & ~(Callback | Err | ContentReset | Ref | PerformedWork);
+      switch (primaryEffectTag) {
+        case Placement:
+          {
+            commitPlacement(nextEffect);
+            // Clear the "placement" from effect tag so that we know that this is inserted, before
+            // any life-cycles like componentDidMount gets called.
+            // TODO: findDOMNode doesn't rely on this any more but isMounted
+            // does and isMounted is deprecated anyway so we should be able
+            // to kill this.
+            nextEffect.effectTag &= ~Placement;
+            break;
+          }
+        case PlacementAndUpdate:
+          {
+            // Placement
+            commitPlacement(nextEffect);
+            // Clear the "placement" from effect tag so that we know that this is inserted, before
+            // any life-cycles like componentDidMount gets called.
+            nextEffect.effectTag &= ~Placement;
 
-    var before = getHostSibling(finishedWork);
-    // We only have the top Fiber that was inserted but we need recurse down its
-    // children to find all the terminal nodes.
-    var node = finishedWork;
-    while (true) {
-      if (node.tag === HostComponent$9 || node.tag === HostText$7) {
-        if (before) {
-          if (isContainer) {
-            insertInContainerBefore(parent, node.stateNode, before);
-          } else {
-            insertBefore(parent, node.stateNode, before);
+            // Update
+            var _current = nextEffect.alternate;
+            commitWork(_current, nextEffect);
+            break;
           }
-        } else {
-          if (isContainer) {
-            appendChildToContainer(parent, node.stateNode);
-          } else {
-            appendChild(parent, node.stateNode);
+        case Update:
+          {
+            var _current2 = nextEffect.alternate;
+            commitWork(_current2, nextEffect);
+            break;
+          }
+        case Deletion:
+          {
+            isUnmounting = true;
+            commitDeletion(nextEffect);
+            isUnmounting = false;
+            break;
           }
-        }
-      } else if (node.tag === HostPortal$7) {
-        // If the insertion itself is a portal, then we don't want to traverse
-        // down its children. Instead, we'll get insertions from each child in
-        // the portal directly.
-      } else if (node.child !== null) {
-        node.child['return'] = node;
-        node = node.child;
-        continue;
-      }
-      if (node === finishedWork) {
-        return;
-      }
-      while (node.sibling === null) {
-        if (node['return'] === null || node['return'] === finishedWork) {
-          return;
-        }
-        node = node['return'];
       }
-      node.sibling['return'] = node['return'];
-      node = node.sibling;
+      nextEffect = nextEffect.nextEffect;
+    }
+
+    {
+      ReactDebugCurrentFiber.resetCurrentFiber();
     }
   }
 
-  function commitNestedUnmounts(root) {
-    // While we're inside a removed host node we don't want to call
-    // removeChild on the inner nodes because they're removed by the top
-    // call anyway. We also want to call componentWillUnmount on all
-    // composites before this host node is removed from the tree. Therefore
-    var node = root;
-    while (true) {
-      commitUnmount(node);
-      // Visit children because they may contain more composite or host nodes.
-      // Skip portals because commitUnmount() currently visits them recursively.
-      if (node.child !== null && node.tag !== HostPortal$7) {
-        node.child['return'] = node;
-        node = node.child;
-        continue;
+  function commitAllLifeCycles() {
+    while (nextEffect !== null) {
+      var effectTag = nextEffect.effectTag;
+
+      if (effectTag & (Update | Callback)) {
+        recordEffect();
+        var current = nextEffect.alternate;
+        commitLifeCycles(current, nextEffect);
       }
-      if (node === root) {
-        return;
+
+      if (effectTag & Ref) {
+        recordEffect();
+        commitAttachRef(nextEffect);
       }
-      while (node.sibling === null) {
-        if (node['return'] === null || node['return'] === root) {
-          return;
-        }
-        node = node['return'];
+
+      if (effectTag & Err) {
+        recordEffect();
+        commitErrorHandling(nextEffect);
       }
-      node.sibling['return'] = node['return'];
-      node = node.sibling;
+
+      var next = nextEffect.nextEffect;
+      // Ensure that we clean these up so that we don't accidentally keep them.
+      // I'm not actually sure this matters because we can't reset firstEffect
+      // and lastEffect since they're on every node, not just the effectful
+      // ones. So we have to clean everything as we reuse nodes anyway.
+      nextEffect.nextEffect = null;
+      // Ensure that we reset the effectTag here so that we can rely on effect
+      // tags to reason about the current life-cycle.
+      nextEffect = next;
     }
   }
 
-  function unmountHostComponents(current) {
-    // We only have the top Fiber that was inserted but we need recurse down its
-    var node = current;
+  function commitRoot(finishedWork) {
+    // We keep track of this so that captureError can collect any boundaries
+    // that capture an error during the commit phase. The reason these aren't
+    // local to this function is because errors that occur during cWU are
+    // captured elsewhere, to prevent the unmount from being interrupted.
+    isWorking = true;
+    isCommitting = true;
+    startCommitTimer();
 
-    // Each iteration, currentParent is populated with node's host parent if not
-    // currentParentIsValid.
-    var currentParentIsValid = false;
-    var currentParent = void 0;
-    var currentParentIsContainer = void 0;
+    var root = finishedWork.stateNode;
+    !(root.current !== finishedWork) ? invariant(false, 'Cannot commit the same tree as before. This is probably a bug related to the return field. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    root.isReadyForCommit = false;
 
-    while (true) {
-      if (!currentParentIsValid) {
-        var parent = node['return'];
-        findParent: while (true) {
-          !(parent !== null) ? invariant(false, 'Expected to find a host parent. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-          switch (parent.tag) {
-            case HostComponent$9:
-              currentParent = parent.stateNode;
-              currentParentIsContainer = false;
-              break findParent;
-            case HostRoot$9:
-              currentParent = parent.stateNode.containerInfo;
-              currentParentIsContainer = true;
-              break findParent;
-            case HostPortal$7:
-              currentParent = parent.stateNode.containerInfo;
-              currentParentIsContainer = true;
-              break findParent;
-          }
-          parent = parent['return'];
-        }
-        currentParentIsValid = true;
-      }
+    // Reset this to null before calling lifecycles
+    ReactCurrentOwner.current = null;
 
-      if (node.tag === HostComponent$9 || node.tag === HostText$7) {
-        commitNestedUnmounts(node);
-        // After all the children have unmounted, it is now safe to remove the
-        // node from the tree.
-        if (currentParentIsContainer) {
-          removeChildFromContainer(currentParent, node.stateNode);
-        } else {
-          removeChild(currentParent, node.stateNode);
-        }
-        // Don't visit children because we already visited them.
-      } else if (node.tag === HostPortal$7) {
-        // When we go into a portal, it becomes the parent to remove from.
-        // We will reassign it back when we pop the portal on the way up.
-        currentParent = node.stateNode.containerInfo;
-        // Visit children because portals might contain host components.
-        if (node.child !== null) {
-          node.child['return'] = node;
-          node = node.child;
-          continue;
-        }
+    var firstEffect = void 0;
+    if (finishedWork.effectTag > PerformedWork) {
+      // A fiber's effect list consists only of its children, not itself. So if
+      // the root has an effect, we need to add it to the end of the list. The
+      // resulting list is the set that would belong to the root's parent, if
+      // it had one; that is, all the effects in the tree including the root.
+      if (finishedWork.lastEffect !== null) {
+        finishedWork.lastEffect.nextEffect = finishedWork;
+        firstEffect = finishedWork.firstEffect;
       } else {
-        commitUnmount(node);
-        // Visit children because we may find more host components below.
-        if (node.child !== null) {
-          node.child['return'] = node;
-          node = node.child;
-          continue;
-        }
-      }
-      if (node === current) {
-        return;
-      }
-      while (node.sibling === null) {
-        if (node['return'] === null || node['return'] === current) {
-          return;
-        }
-        node = node['return'];
-        if (node.tag === HostPortal$7) {
-          // When we go out of the portal, we need to restore the parent.
-          // Since we don't keep a stack of them, we will search for it.
-          currentParentIsValid = false;
-        }
+        firstEffect = finishedWork;
       }
-      node.sibling['return'] = node['return'];
-      node = node.sibling;
+    } else {
+      // There is no effect on the root.
+      firstEffect = finishedWork.firstEffect;
     }
-  }
 
-  function commitDeletion(current) {
-    // Recursively delete all host nodes from the parent.
-    // Detach refs and call componentWillUnmount() on the whole subtree.
-    unmountHostComponents(current);
-
-    // Cut off the return pointers to disconnect it from the tree. Ideally, we
-    // should clear the child pointer of the parent alternate to let this
-    // get GC:ed but we don't know which for sure which parent is the current
-    // one so we'll settle for GC:ing the subtree of this child. This child
-    // itself will be GC:ed when the parent updates the next time.
-    current['return'] = null;
-    current.child = null;
-    if (current.alternate) {
-      current.alternate.child = null;
-      current.alternate['return'] = null;
-    }
-  }
-
-  // User-originating errors (lifecycles and refs) should not interrupt
-  // deletion, so don't let them throw. Host-originating errors should
-  // interrupt deletion, so it's okay
-  function commitUnmount(current) {
-    if (typeof onCommitUnmount === 'function') {
-      onCommitUnmount(current);
-    }
-
-    switch (current.tag) {
-      case ClassComponent$9:
-        {
-          safelyDetachRef(current);
-          var instance = current.stateNode;
-          if (typeof instance.componentWillUnmount === 'function') {
-            safelyCallComponentWillUnmount(current, instance);
-          }
-          return;
-        }
-      case HostComponent$9:
-        {
-          safelyDetachRef(current);
-          return;
-        }
-      case CoroutineComponent$4:
-        {
-          commitNestedUnmounts(current.stateNode);
-          return;
-        }
-      case HostPortal$7:
-        {
-          // TODO: this is recursive.
-          // We are also not using this parent because
-          // the portal will get pushed immediately.
-          unmountHostComponents(current);
-          return;
-        }
-    }
-  }
+    prepareForCommit();
 
-  function commitWork(current, finishedWork) {
-    switch (finishedWork.tag) {
-      case ClassComponent$9:
-        {
-          return;
-        }
-      case HostComponent$9:
-        {
-          var instance = finishedWork.stateNode;
-          if (instance != null) {
-            // Commit the work prepared earlier.
-            var newProps = finishedWork.memoizedProps;
-            // For hydration we reuse the update path but we treat the oldProps
-            // as the newProps. The updatePayload will contain the real change in
-            // this case.
-            var oldProps = current !== null ? current.memoizedProps : newProps;
-            var type = finishedWork.type;
-            // TODO: Type the updateQueue to be specific to host components.
-            var updatePayload = finishedWork.updateQueue;
-            finishedWork.updateQueue = null;
-            if (updatePayload !== null) {
-              commitUpdate(instance, updatePayload, type, oldProps, newProps, finishedWork);
-            }
-          }
-          return;
-        }
-      case HostText$7:
-        {
-          !(finishedWork.stateNode !== null) ? invariant(false, 'This should have a text node initialized. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-          var textInstance = finishedWork.stateNode;
-          var newText = finishedWork.memoizedProps;
-          // For hydration we reuse the update path but we treat the oldProps
-          // as the newProps. The updatePayload will contain the real change in
-          // this case.
-          var oldText = current !== null ? current.memoizedProps : newText;
-          commitTextUpdate(textInstance, oldText, newText);
-          return;
-        }
-      case HostRoot$9:
-        {
-          return;
-        }
-      case HostPortal$7:
-        {
-          return;
+    // Commit all the side-effects within a tree. We'll do this in two passes.
+    // The first pass performs all the host insertions, updates, deletions and
+    // ref unmounts.
+    nextEffect = firstEffect;
+    startCommitHostEffectsTimer();
+    while (nextEffect !== null) {
+      var didError = false;
+      var _error = void 0;
+      {
+        invokeGuardedCallback$1(null, commitAllHostEffects, null);
+        if (hasCaughtError()) {
+          didError = true;
+          _error = clearCaughtError();
         }
-      default:
-        {
-          invariant(false, 'This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.');
+      }
+      if (didError) {
+        !(nextEffect !== null) ? invariant(false, 'Should have next effect. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+        captureError(nextEffect, _error);
+        // Clean-up
+        if (nextEffect !== null) {
+          nextEffect = nextEffect.nextEffect;
         }
+      }
     }
-  }
+    stopCommitHostEffectsTimer();
 
-  function commitLifeCycles(current, finishedWork) {
-    switch (finishedWork.tag) {
-      case ClassComponent$9:
-        {
-          var instance = finishedWork.stateNode;
-          if (finishedWork.effectTag & Update$3) {
-            if (current === null) {
-              {
-                startPhaseTimer$2(finishedWork, 'componentDidMount');
-              }
-              instance.props = finishedWork.memoizedProps;
-              instance.state = finishedWork.memoizedState;
-              instance.componentDidMount();
-              {
-                stopPhaseTimer$2();
-              }
-            } else {
-              var prevProps = current.memoizedProps;
-              var prevState = current.memoizedState;
-              {
-                startPhaseTimer$2(finishedWork, 'componentDidUpdate');
-              }
-              instance.props = finishedWork.memoizedProps;
-              instance.state = finishedWork.memoizedState;
-              instance.componentDidUpdate(prevProps, prevState);
-              {
-                stopPhaseTimer$2();
-              }
-            }
-          }
-          if (finishedWork.effectTag & Callback$1 && finishedWork.updateQueue !== null) {
-            commitCallbacks$1(finishedWork, finishedWork.updateQueue, instance);
-          }
-          return;
-        }
-      case HostRoot$9:
-        {
-          var updateQueue = finishedWork.updateQueue;
-          if (updateQueue !== null) {
-            var _instance = finishedWork.child && finishedWork.child.stateNode;
-            commitCallbacks$1(finishedWork, updateQueue, _instance);
-          }
-          return;
-        }
-      case HostComponent$9:
-        {
-          var _instance2 = finishedWork.stateNode;
+    resetAfterCommit();
 
-          // Renderers may schedule work to be done after host components are mounted
-          // (eg DOM renderer may schedule auto-focus for inputs and form controls).
-          // These effects should only be committed when components are first mounted,
-          // aka when there is no current/alternate.
-          if (current === null && finishedWork.effectTag & Update$3) {
-            var type = finishedWork.type;
-            var props = finishedWork.memoizedProps;
-            commitMount(_instance2, type, props, finishedWork);
-          }
+    // The work-in-progress tree is now the current tree. This must come after
+    // the first pass of the commit phase, so that the previous tree is still
+    // current during componentWillUnmount, but before the second pass, so that
+    // the finished work is current during componentDidMount/Update.
+    root.current = finishedWork;
 
-          return;
-        }
-      case HostText$7:
-        {
-          // We have no life-cycles associated with text.
-          return;
-        }
-      case HostPortal$7:
-        {
-          // We have no life-cycles associated with portals.
-          return;
+    // In the second pass we'll perform all life-cycles and ref callbacks.
+    // Life-cycles happen as a separate pass so that all placements, updates,
+    // and deletions in the entire tree have already been invoked.
+    // This pass also triggers any renderer-specific initial effects.
+    nextEffect = firstEffect;
+    startCommitLifeCyclesTimer();
+    while (nextEffect !== null) {
+      var _didError = false;
+      var _error2 = void 0;
+      {
+        invokeGuardedCallback$1(null, commitAllLifeCycles, null);
+        if (hasCaughtError()) {
+          _didError = true;
+          _error2 = clearCaughtError();
         }
-      default:
-        {
-          invariant(false, 'This unit of work tag should not have side-effects. This error is likely caused by a bug in React. Please file an issue.');
+      }
+      if (_didError) {
+        !(nextEffect !== null) ? invariant(false, 'Should have next effect. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+        captureError(nextEffect, _error2);
+        if (nextEffect !== null) {
+          nextEffect = nextEffect.nextEffect;
         }
-    }
-  }
-
-  function commitAttachRef(finishedWork) {
-    var ref = finishedWork.ref;
-    if (ref !== null) {
-      var instance = finishedWork.stateNode;
-      switch (finishedWork.tag) {
-        case HostComponent$9:
-          ref(getPublicInstance(instance));
-          break;
-        default:
-          ref(instance);
       }
     }
-  }
 
-  function commitDetachRef(current) {
-    var currentRef = current.ref;
-    if (currentRef !== null) {
-      currentRef(null);
+    isCommitting = false;
+    isWorking = false;
+    stopCommitLifeCyclesTimer();
+    stopCommitTimer();
+    if (typeof onCommitRoot === 'function') {
+      onCommitRoot(finishedWork.stateNode);
+    }
+    if (true && ReactFiberInstrumentation_1.debugTool) {
+      ReactFiberInstrumentation_1.debugTool.onCommitWork(finishedWork);
     }
-  }
-
-  return {
-    commitPlacement: commitPlacement,
-    commitDeletion: commitDeletion,
-    commitWork: commitWork,
-    commitLifeCycles: commitLifeCycles,
-    commitAttachRef: commitAttachRef,
-    commitDetachRef: commitDetachRef
-  };
-};
-
-var createCursor$2 = ReactFiberStack.createCursor;
-var pop$2 = ReactFiberStack.pop;
-var push$2 = ReactFiberStack.push;
-
-
 
-var NO_CONTEXT = {};
+    // If we caught any errors during this commit, schedule their boundaries
+    // to update.
+    if (commitPhaseBoundaries) {
+      commitPhaseBoundaries.forEach(scheduleErrorRecovery);
+      commitPhaseBoundaries = null;
+    }
 
-var ReactFiberHostContext = function (config) {
-  var getChildHostContext = config.getChildHostContext,
-      getRootHostContext = config.getRootHostContext;
+    if (firstUncaughtError !== null) {
+      var _error3 = firstUncaughtError;
+      firstUncaughtError = null;
+      onUncaughtError(_error3);
+    }
 
+    var remainingTime = root.current.expirationTime;
 
-  var contextStackCursor = createCursor$2(NO_CONTEXT);
-  var contextFiberStackCursor = createCursor$2(NO_CONTEXT);
-  var rootInstanceStackCursor = createCursor$2(NO_CONTEXT);
+    if (remainingTime === NoWork) {
+      capturedErrors = null;
+      failedBoundaries = null;
+    }
 
-  function requiredContext(c) {
-    !(c !== NO_CONTEXT) ? invariant(false, 'Expected host context to exist. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-    return c;
+    return remainingTime;
   }
 
-  function getRootHostContainer() {
-    var rootInstance = requiredContext(rootInstanceStackCursor.current);
-    return rootInstance;
-  }
+  function resetExpirationTime(workInProgress, renderTime) {
+    if (renderTime !== Never && workInProgress.expirationTime === Never) {
+      // The children of this component are hidden. Don't bubble their
+      // expiration times.
+      return;
+    }
 
-  function pushHostContainer(fiber, nextRootInstance) {
-    // Push current root instance onto the stack;
-    // This allows us to reset root when portals are popped.
-    push$2(rootInstanceStackCursor, nextRootInstance, fiber);
+    // Check for pending updates.
+    var newExpirationTime = getUpdateExpirationTime(workInProgress);
 
-    var nextRootContext = getRootHostContext(nextRootInstance);
+    // TODO: Calls need to visit stateNode
 
-    // Track the context and the Fiber that provided it.
-    // This enables us to pop only Fibers that provide unique contexts.
-    push$2(contextFiberStackCursor, fiber, fiber);
-    push$2(contextStackCursor, nextRootContext, fiber);
+    // Bubble up the earliest expiration time.
+    var child = workInProgress.child;
+    while (child !== null) {
+      if (child.expirationTime !== NoWork && (newExpirationTime === NoWork || newExpirationTime > child.expirationTime)) {
+        newExpirationTime = child.expirationTime;
+      }
+      child = child.sibling;
+    }
+    workInProgress.expirationTime = newExpirationTime;
   }
 
-  function popHostContainer(fiber) {
-    pop$2(contextStackCursor, fiber);
-    pop$2(contextFiberStackCursor, fiber);
-    pop$2(rootInstanceStackCursor, fiber);
-  }
+  function completeUnitOfWork(workInProgress) {
+    while (true) {
+      // The current, flushed, state of this fiber is the alternate.
+      // Ideally nothing should rely on this, but relying on it here
+      // means that we don't need an additional field on the work in
+      // progress.
+      var current = workInProgress.alternate;
+      {
+        ReactDebugCurrentFiber.setCurrentFiber(workInProgress);
+      }
+      var next = completeWork(current, workInProgress, nextRenderExpirationTime);
+      {
+        ReactDebugCurrentFiber.resetCurrentFiber();
+      }
 
-  function getHostContext() {
-    var context = requiredContext(contextStackCursor.current);
-    return context;
-  }
+      var returnFiber = workInProgress['return'];
+      var siblingFiber = workInProgress.sibling;
 
-  function pushHostContext(fiber) {
-    var rootInstance = requiredContext(rootInstanceStackCursor.current);
-    var context = requiredContext(contextStackCursor.current);
-    var nextContext = getChildHostContext(context, fiber.type, rootInstance);
+      resetExpirationTime(workInProgress, nextRenderExpirationTime);
 
-    // Don't push this Fiber's context unless it's unique.
-    if (context === nextContext) {
-      return;
-    }
+      if (next !== null) {
+        stopWorkTimer(workInProgress);
+        if (true && ReactFiberInstrumentation_1.debugTool) {
+          ReactFiberInstrumentation_1.debugTool.onCompleteWork(workInProgress);
+        }
+        // If completing this work spawned new work, do that next. We'll come
+        // back here again.
+        return next;
+      }
 
-    // Track the context and the Fiber that provided it.
-    // This enables us to pop only Fibers that provide unique contexts.
-    push$2(contextFiberStackCursor, fiber, fiber);
-    push$2(contextStackCursor, nextContext, fiber);
-  }
+      if (returnFiber !== null) {
+        // Append all the effects of the subtree and this fiber onto the effect
+        // list of the parent. The completion order of the children affects the
+        // side-effect order.
+        if (returnFiber.firstEffect === null) {
+          returnFiber.firstEffect = workInProgress.firstEffect;
+        }
+        if (workInProgress.lastEffect !== null) {
+          if (returnFiber.lastEffect !== null) {
+            returnFiber.lastEffect.nextEffect = workInProgress.firstEffect;
+          }
+          returnFiber.lastEffect = workInProgress.lastEffect;
+        }
 
-  function popHostContext(fiber) {
-    // Do not pop unless this Fiber provided the current context.
-    // pushHostContext() only pushes Fibers that provide unique contexts.
-    if (contextFiberStackCursor.current !== fiber) {
-      return;
-    }
+        // If this fiber had side-effects, we append it AFTER the children's
+        // side-effects. We can perform certain side-effects earlier if
+        // needed, by doing multiple passes over the effect list. We don't want
+        // to schedule our own side-effect on our own list because if end up
+        // reusing children we'll schedule this effect onto itself since we're
+        // at the end.
+        var effectTag = workInProgress.effectTag;
+        // Skip both NoWork and PerformedWork tags when creating the effect list.
+        // PerformedWork effect is read by React DevTools but shouldn't be committed.
+        if (effectTag > PerformedWork) {
+          if (returnFiber.lastEffect !== null) {
+            returnFiber.lastEffect.nextEffect = workInProgress;
+          } else {
+            returnFiber.firstEffect = workInProgress;
+          }
+          returnFiber.lastEffect = workInProgress;
+        }
+      }
 
-    pop$2(contextStackCursor, fiber);
-    pop$2(contextFiberStackCursor, fiber);
-  }
+      stopWorkTimer(workInProgress);
+      if (true && ReactFiberInstrumentation_1.debugTool) {
+        ReactFiberInstrumentation_1.debugTool.onCompleteWork(workInProgress);
+      }
 
-  function resetHostContainer() {
-    contextStackCursor.current = NO_CONTEXT;
-    rootInstanceStackCursor.current = NO_CONTEXT;
-  }
+      if (siblingFiber !== null) {
+        // If there is more work to do in this returnFiber, do that next.
+        return siblingFiber;
+      } else if (returnFiber !== null) {
+        // If there's no more work in this returnFiber. Complete the returnFiber.
+        workInProgress = returnFiber;
+        continue;
+      } else {
+        // We've reached the root.
+        var root = workInProgress.stateNode;
+        root.isReadyForCommit = true;
+        return null;
+      }
+    }
 
-  return {
-    getHostContext: getHostContext,
-    getRootHostContainer: getRootHostContainer,
-    popHostContainer: popHostContainer,
-    popHostContext: popHostContext,
-    pushHostContainer: pushHostContainer,
-    pushHostContext: pushHostContext,
-    resetHostContainer: resetHostContainer
-  };
-};
+    // Without this explicit null return Flow complains of invalid return type
+    // TODO Remove the above while(true) loop
+    // eslint-disable-next-line no-unreachable
+    return null;
+  }
 
-var HostComponent$10 = ReactTypeOfWork.HostComponent;
-var HostText$8 = ReactTypeOfWork.HostText;
-var HostRoot$10 = ReactTypeOfWork.HostRoot;
+  function performUnitOfWork(workInProgress) {
+    // The current, flushed, state of this fiber is the alternate.
+    // Ideally nothing should rely on this, but relying on it here
+    // means that we don't need an additional field on the work in
+    // progress.
+    var current = workInProgress.alternate;
 
-var Deletion$2 = ReactTypeOfSideEffect.Deletion;
-var Placement$6 = ReactTypeOfSideEffect.Placement;
+    // See if beginning this work spawns more work.
+    startWorkTimer(workInProgress);
+    {
+      ReactDebugCurrentFiber.setCurrentFiber(workInProgress);
+    }
 
-var createFiberFromHostInstanceForDeletion$1 = ReactFiber.createFiberFromHostInstanceForDeletion;
+    var next = beginWork(current, workInProgress, nextRenderExpirationTime);
+    {
+      ReactDebugCurrentFiber.resetCurrentFiber();
+    }
+    if (true && ReactFiberInstrumentation_1.debugTool) {
+      ReactFiberInstrumentation_1.debugTool.onBeginWork(workInProgress);
+    }
 
-var ReactFiberHydrationContext = function (config) {
-  var shouldSetTextContent = config.shouldSetTextContent,
-      canHydrateInstance = config.canHydrateInstance,
-      canHydrateTextInstance = config.canHydrateTextInstance,
-      getNextHydratableSibling = config.getNextHydratableSibling,
-      getFirstHydratableChild = config.getFirstHydratableChild,
-      hydrateInstance = config.hydrateInstance,
-      hydrateTextInstance = config.hydrateTextInstance,
-      didNotHydrateInstance = config.didNotHydrateInstance,
-      didNotFindHydratableInstance = config.didNotFindHydratableInstance,
-      didNotFindHydratableTextInstance = config.didNotFindHydratableTextInstance;
+    if (next === null) {
+      // If this doesn't spawn new work, complete the current work.
+      next = completeUnitOfWork(workInProgress);
+    }
 
-  // If this doesn't have hydration mode.
+    ReactCurrentOwner.current = null;
 
-  if (!(canHydrateInstance && canHydrateTextInstance && getNextHydratableSibling && getFirstHydratableChild && hydrateInstance && hydrateTextInstance && didNotHydrateInstance && didNotFindHydratableInstance && didNotFindHydratableTextInstance)) {
-    return {
-      enterHydrationState: function () {
-        return false;
-      },
-      resetHydrationState: function () {},
-      tryToClaimNextHydratableInstance: function () {},
-      prepareToHydrateHostInstance: function () {
-        invariant(false, 'Expected prepareToHydrateHostInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.');
-      },
-      prepareToHydrateHostTextInstance: function () {
-        invariant(false, 'Expected prepareToHydrateHostTextInstance() to never be called. This error is likely caused by a bug in React. Please file an issue.');
-      },
-      popHydrationState: function (fiber) {
-        return false;
-      }
-    };
+    return next;
   }
 
-  // The deepest Fiber on the stack involved in a hydration context.
-  // This may have been an insertion or a hydration.
-  var hydrationParentFiber = null;
-  var nextHydratableInstance = null;
-  var isHydrating = false;
-
-  function enterHydrationState(fiber) {
-    var parentInstance = fiber.stateNode.containerInfo;
-    nextHydratableInstance = getFirstHydratableChild(parentInstance);
-    hydrationParentFiber = fiber;
-    isHydrating = true;
-    return true;
-  }
+  function performFailedUnitOfWork(workInProgress) {
+    // The current, flushed, state of this fiber is the alternate.
+    // Ideally nothing should rely on this, but relying on it here
+    // means that we don't need an additional field on the work in
+    // progress.
+    var current = workInProgress.alternate;
 
-  function deleteHydratableInstance(returnFiber, instance) {
+    // See if beginning this work spawns more work.
+    startWorkTimer(workInProgress);
     {
-      switch (returnFiber.tag) {
-        case HostRoot$10:
-          didNotHydrateInstance(returnFiber.stateNode.containerInfo, instance);
-          break;
-        case HostComponent$10:
-          didNotHydrateInstance(returnFiber.stateNode, instance);
-          break;
-      }
-    }
-
-    var childToDelete = createFiberFromHostInstanceForDeletion$1();
-    childToDelete.stateNode = instance;
-    childToDelete['return'] = returnFiber;
-    childToDelete.effectTag = Deletion$2;
-
-    // This might seem like it belongs on progressedFirstDeletion. However,
-    // these children are not part of the reconciliation list of children.
-    // Even if we abort and rereconcile the children, that will try to hydrate
-    // again and the nodes are still in the host tree so these will be
-    // recreated.
-    if (returnFiber.lastEffect !== null) {
-      returnFiber.lastEffect.nextEffect = childToDelete;
-      returnFiber.lastEffect = childToDelete;
-    } else {
-      returnFiber.firstEffect = returnFiber.lastEffect = childToDelete;
+      ReactDebugCurrentFiber.setCurrentFiber(workInProgress);
     }
-  }
-
-  function insertNonHydratedInstance(returnFiber, fiber) {
-    fiber.effectTag |= Placement$6;
+    var next = beginFailedWork(current, workInProgress, nextRenderExpirationTime);
     {
-      var parentInstance;
-      switch (returnFiber.tag) {
-        // TODO: Currently we don't warn for insertions into the root because
-        // we always insert into the root in the non-hydrating case. We just
-        // delete the existing content. Reenable this once we have a better
-        // strategy for determining if we're hydrating or not.
-        // case HostRoot:
-        //   parentInstance = returnFiber.stateNode.containerInfo;
-        //   break;
-        case HostComponent$10:
-          parentInstance = returnFiber.stateNode;
-          break;
-        default:
-          return;
-      }
-      switch (fiber.tag) {
-        case HostComponent$10:
-          var type = fiber.type;
-          var props = fiber.pendingProps;
-          didNotFindHydratableInstance(parentInstance, type, props);
-          break;
-        case HostText$8:
-          var text = fiber.pendingProps;
-          didNotFindHydratableTextInstance(parentInstance, text);
-          break;
-      }
+      ReactDebugCurrentFiber.resetCurrentFiber();
+    }
+    if (true && ReactFiberInstrumentation_1.debugTool) {
+      ReactFiberInstrumentation_1.debugTool.onBeginWork(workInProgress);
     }
-  }
 
-  function canHydrate(fiber, nextInstance) {
-    switch (fiber.tag) {
-      case HostComponent$10:
-        {
-          var type = fiber.type;
-          var props = fiber.pendingProps;
-          return canHydrateInstance(nextInstance, type, props);
-        }
-      case HostText$8:
-        {
-          var text = fiber.pendingProps;
-          return canHydrateTextInstance(nextInstance, text);
-        }
-      default:
-        return false;
+    if (next === null) {
+      // If this doesn't spawn new work, complete the current work.
+      next = completeUnitOfWork(workInProgress);
     }
+
+    ReactCurrentOwner.current = null;
+
+    return next;
   }
 
-  function tryToClaimNextHydratableInstance(fiber) {
-    if (!isHydrating) {
+  function workLoop(expirationTime) {
+    if (capturedErrors !== null) {
+      // If there are unhandled errors, switch to the slow work loop.
+      // TODO: How to avoid this check in the fast path? Maybe the renderer
+      // could keep track of which roots have unhandled errors and call a
+      // forked version of renderRoot.
+      slowWorkLoopThatChecksForFailedWork(expirationTime);
       return;
     }
-    var nextInstance = nextHydratableInstance;
-    if (!nextInstance) {
-      // Nothing to hydrate. Make it an insertion.
-      insertNonHydratedInstance(hydrationParentFiber, fiber);
-      isHydrating = false;
-      hydrationParentFiber = fiber;
+    if (nextRenderExpirationTime === NoWork || nextRenderExpirationTime > expirationTime) {
       return;
     }
-    if (!canHydrate(fiber, nextInstance)) {
-      // If we can't hydrate this instance let's try the next one.
-      // We use this as a heuristic. It's based on intuition and not data so it
-      // might be flawed or unnecessary.
-      nextInstance = getNextHydratableSibling(nextInstance);
-      if (!nextInstance || !canHydrate(fiber, nextInstance)) {
-        // Nothing to hydrate. Make it an insertion.
-        insertNonHydratedInstance(hydrationParentFiber, fiber);
-        isHydrating = false;
-        hydrationParentFiber = fiber;
-        return;
+
+    if (nextRenderExpirationTime <= mostRecentCurrentTime) {
+      // Flush all expired work.
+      while (nextUnitOfWork !== null) {
+        nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
+      }
+    } else {
+      // Flush asynchronous work until the deadline runs out of time.
+      while (nextUnitOfWork !== null && !shouldYield()) {
+        nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
       }
-      // We matched the next one, we'll now assume that the first one was
-      // superfluous and we'll delete it. Since we can't eagerly delete it
-      // we'll have to schedule a deletion. To do that, this node needs a dummy
-      // fiber associated with it.
-      deleteHydratableInstance(hydrationParentFiber, nextHydratableInstance);
     }
-    fiber.stateNode = nextInstance;
-    hydrationParentFiber = fiber;
-    nextHydratableInstance = getFirstHydratableChild(nextInstance);
   }
 
-  function prepareToHydrateHostInstance(fiber, rootContainerInstance, hostContext) {
-    var instance = fiber.stateNode;
-    var updatePayload = hydrateInstance(instance, fiber.type, fiber.memoizedProps, rootContainerInstance, hostContext, fiber);
-    // TODO: Type this specific to this type of component.
-    fiber.updateQueue = updatePayload;
-    // If the update payload indicates that there is a change or if there
-    // is a new ref we mark this as an update.
-    if (updatePayload !== null) {
-      return true;
+  function slowWorkLoopThatChecksForFailedWork(expirationTime) {
+    if (nextRenderExpirationTime === NoWork || nextRenderExpirationTime > expirationTime) {
+      return;
     }
-    return false;
-  }
 
-  function prepareToHydrateHostTextInstance(fiber) {
-    var textInstance = fiber.stateNode;
-    var shouldUpdate = hydrateTextInstance(textInstance, fiber.memoizedProps, fiber);
-    return shouldUpdate;
-  }
-
-  function popToNextHostParent(fiber) {
-    var parent = fiber['return'];
-    while (parent !== null && parent.tag !== HostComponent$10 && parent.tag !== HostRoot$10) {
-      parent = parent['return'];
-    }
-    hydrationParentFiber = parent;
-  }
-
-  function popHydrationState(fiber) {
-    if (fiber !== hydrationParentFiber) {
-      // We're deeper than the current hydration context, inside an inserted
-      // tree.
-      return false;
-    }
-    if (!isHydrating) {
-      // If we're not currently hydrating but we're in a hydration context, then
-      // we were an insertion and now need to pop up reenter hydration of our
-      // siblings.
-      popToNextHostParent(fiber);
-      isHydrating = true;
-      return false;
-    }
-
-    var type = fiber.type;
-
-    // If we have any remaining hydratable nodes, we need to delete them now.
-    // We only do this deeper than head and body since they tend to have random
-    // other nodes in them. We also ignore components with pure text content in
-    // side of them.
-    // TODO: Better heuristic.
-    if (fiber.tag !== HostComponent$10 || type !== 'head' && type !== 'body' && !shouldSetTextContent(type, fiber.memoizedProps)) {
-      var nextInstance = nextHydratableInstance;
-      while (nextInstance) {
-        deleteHydratableInstance(fiber, nextInstance);
-        nextInstance = getNextHydratableSibling(nextInstance);
+    if (nextRenderExpirationTime <= mostRecentCurrentTime) {
+      // Flush all expired work.
+      while (nextUnitOfWork !== null) {
+        if (hasCapturedError(nextUnitOfWork)) {
+          // Use a forked version of performUnitOfWork
+          nextUnitOfWork = performFailedUnitOfWork(nextUnitOfWork);
+        } else {
+          nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
+        }
+      }
+    } else {
+      // Flush asynchronous work until the deadline runs out of time.
+      while (nextUnitOfWork !== null && !shouldYield()) {
+        if (hasCapturedError(nextUnitOfWork)) {
+          // Use a forked version of performUnitOfWork
+          nextUnitOfWork = performFailedUnitOfWork(nextUnitOfWork);
+        } else {
+          nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
+        }
       }
     }
-
-    popToNextHostParent(fiber);
-    nextHydratableInstance = hydrationParentFiber ? getNextHydratableSibling(fiber.stateNode) : null;
-    return true;
   }
 
-  function resetHydrationState() {
-    hydrationParentFiber = null;
-    nextHydratableInstance = null;
-    isHydrating = false;
-  }
+  function renderRootCatchBlock(root, failedWork, boundary, expirationTime) {
+    // We're going to restart the error boundary that captured the error.
+    // Conceptually, we're unwinding the stack. We need to unwind the
+    // context stack, too.
+    unwindContexts(failedWork, boundary);
 
-  return {
-    enterHydrationState: enterHydrationState,
-    resetHydrationState: resetHydrationState,
-    tryToClaimNextHydratableInstance: tryToClaimNextHydratableInstance,
-    prepareToHydrateHostInstance: prepareToHydrateHostInstance,
-    prepareToHydrateHostTextInstance: prepareToHydrateHostTextInstance,
-    popHydrationState: popHydrationState
-  };
-};
+    // Restart the error boundary using a forked version of
+    // performUnitOfWork that deletes the boundary's children. The entire
+    // failed subree will be unmounted. During the commit phase, a special
+    // lifecycle method is called on the error boundary, which triggers
+    // a re-render.
+    nextUnitOfWork = performFailedUnitOfWork(boundary);
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule ReactFiberInstrumentation
- * 
- */
+    // Continue working.
+    workLoop(expirationTime);
+  }
 
-// This lets us hook into Fiber to debug what it's doing.
-// See https://github.com/facebook/react/pull/8033.
-// This is not part of the public API, not even for React DevTools.
-// You may only inject a debugTool if you work on React Fiber itself.
+  function renderRoot(root, expirationTime) {
+    !!isWorking ? invariant(false, 'renderRoot was called recursively. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    isWorking = true;
 
-var ReactFiberInstrumentation$2 = {
-  debugTool: null
-};
+    // We're about to mutate the work-in-progress tree. If the root was pending
+    // commit, it no longer is: we'll need to complete it again.
+    root.isReadyForCommit = false;
 
-var ReactFiberInstrumentation_1 = ReactFiberInstrumentation$2;
+    // Check if we're starting from a fresh stack, or if we're resuming from
+    // previously yielded work.
+    if (root !== nextRoot || expirationTime !== nextRenderExpirationTime || nextUnitOfWork === null) {
+      // Reset the stack and start working from the root.
+      resetContextStack();
+      nextRoot = root;
+      nextRenderExpirationTime = expirationTime;
+      nextUnitOfWork = createWorkInProgress(nextRoot.current, null, expirationTime);
+    }
 
-var popContextProvider$1 = ReactFiberContext.popContextProvider;
+    startWorkLoopTimer(nextUnitOfWork);
 
-var reset$1 = ReactFiberStack.reset;
+    var didError = false;
+    var error = null;
+    {
+      invokeGuardedCallback$1(null, workLoop, null, expirationTime);
+      if (hasCaughtError()) {
+        didError = true;
+        error = clearCaughtError();
+      }
+    }
 
-var getStackAddendumByWorkInProgressFiber$2 = ReactFiberComponentTreeHook.getStackAddendumByWorkInProgressFiber;
+    // An error was thrown during the render phase.
+    while (didError) {
+      if (didFatal) {
+        // This was a fatal error. Don't attempt to recover from it.
+        firstUncaughtError = error;
+        break;
+      }
 
-var logCapturedError = ReactFiberErrorLogger.logCapturedError;
+      var failedWork = nextUnitOfWork;
+      if (failedWork === null) {
+        // An error was thrown but there's no current unit of work. This can
+        // happen during the commit phase if there's a bug in the renderer.
+        didFatal = true;
+        continue;
+      }
 
-var invokeGuardedCallback$1 = ReactErrorUtils_1.invokeGuardedCallback;
-var hasCaughtError = ReactErrorUtils_1.hasCaughtError;
-var clearCaughtError = ReactErrorUtils_1.clearCaughtError;
+      // "Capture" the error by finding the nearest boundary. If there is no
+      // error boundary, we use the root.
+      var boundary = captureError(failedWork, error);
+      !(boundary !== null) ? invariant(false, 'Should have found an error boundary. This error is likely caused by a bug in React. Please file an issue.') : void 0;
 
+      if (didFatal) {
+        // The error we just captured was a fatal error. This happens
+        // when the error propagates to the root more than once.
+        continue;
+      }
 
+      didError = false;
+      error = null;
+      {
+        invokeGuardedCallback$1(null, renderRootCatchBlock, null, root, failedWork, boundary, expirationTime);
+        if (hasCaughtError()) {
+          didError = true;
+          error = clearCaughtError();
+          continue;
+        }
+      }
+      // We're finished working. Exit the error loop.
+      break;
+    }
 
+    var uncaughtError = firstUncaughtError;
 
+    // We're done performing work. Time to clean up.
+    stopWorkLoopTimer(interruptedBy);
+    interruptedBy = null;
+    isWorking = false;
+    didFatal = false;
+    firstUncaughtError = null;
 
+    if (uncaughtError !== null) {
+      onUncaughtError(uncaughtError);
+    }
 
+    return root.isReadyForCommit ? root.current.alternate : null;
+  }
 
-var ReactCurrentOwner$1 = ReactGlobalSharedState_1.ReactCurrentOwner;
+  // Returns the boundary that captured the error, or null if the error is ignored
+  function captureError(failedWork, error) {
+    // It is no longer valid because we exited the user code.
+    ReactCurrentOwner.current = null;
+    {
+      ReactDebugCurrentFiber.resetCurrentFiber();
+    }
 
+    // Search for the nearest error boundary.
+    var boundary = null;
 
+    // Passed to logCapturedError()
+    var errorBoundaryFound = false;
+    var willRetry = false;
+    var errorBoundaryName = null;
 
-var createWorkInProgress$1 = ReactFiber.createWorkInProgress;
-var largerPriority$1 = ReactFiber.largerPriority;
+    // Host containers are a special case. If the failed work itself is a host
+    // container, then it acts as its own boundary. In all other cases, we
+    // ignore the work itself and only search through the parents.
+    if (failedWork.tag === HostRoot) {
+      boundary = failedWork;
 
-var onCommitRoot = ReactFiberDevToolsHook.onCommitRoot;
+      if (isFailedBoundary(failedWork)) {
+        // If this root already failed, there must have been an error when
+        // attempting to unmount it. This is a worst-case scenario and
+        // should only be possible if there's a bug in the renderer.
+        didFatal = true;
+      }
+    } else {
+      var node = failedWork['return'];
+      while (node !== null && boundary === null) {
+        if (node.tag === ClassComponent) {
+          var instance = node.stateNode;
+          if (typeof instance.componentDidCatch === 'function') {
+            errorBoundaryFound = true;
+            errorBoundaryName = getComponentName(node);
 
-var NoWork$2 = ReactPriorityLevel.NoWork;
-var SynchronousPriority$1 = ReactPriorityLevel.SynchronousPriority;
-var TaskPriority$1 = ReactPriorityLevel.TaskPriority;
-var HighPriority = ReactPriorityLevel.HighPriority;
-var LowPriority = ReactPriorityLevel.LowPriority;
-var OffscreenPriority = ReactPriorityLevel.OffscreenPriority;
+            // Found an error boundary!
+            boundary = node;
+            willRetry = true;
+          }
+        } else if (node.tag === HostRoot) {
+          // Treat the root like a no-op error boundary
+          boundary = node;
+        }
 
-var AsyncUpdates = ReactTypeOfInternalContext.AsyncUpdates;
+        if (isFailedBoundary(node)) {
+          // This boundary is already in a failed state.
 
-var PerformedWork = ReactTypeOfSideEffect.PerformedWork;
-var Placement$1 = ReactTypeOfSideEffect.Placement;
-var Update = ReactTypeOfSideEffect.Update;
-var PlacementAndUpdate = ReactTypeOfSideEffect.PlacementAndUpdate;
-var Deletion = ReactTypeOfSideEffect.Deletion;
-var ContentReset = ReactTypeOfSideEffect.ContentReset;
-var Callback = ReactTypeOfSideEffect.Callback;
-var Err = ReactTypeOfSideEffect.Err;
-var Ref = ReactTypeOfSideEffect.Ref;
+          // If we're currently unmounting, that means this error was
+          // thrown while unmounting a failed subtree. We should ignore
+          // the error.
+          if (isUnmounting) {
+            return null;
+          }
 
-var HostRoot$6 = ReactTypeOfWork.HostRoot;
-var HostComponent$6 = ReactTypeOfWork.HostComponent;
-var HostPortal$3 = ReactTypeOfWork.HostPortal;
-var ClassComponent$5 = ReactTypeOfWork.ClassComponent;
+          // If we're in the commit phase, we should check to see if
+          // this boundary already captured an error during this commit.
+          // This case exists because multiple errors can be thrown during
+          // a single commit without interruption.
+          if (commitPhaseBoundaries !== null && (commitPhaseBoundaries.has(node) || node.alternate !== null && commitPhaseBoundaries.has(node.alternate))) {
+            // If so, we should ignore this error.
+            return null;
+          }
 
-var getUpdatePriority$1 = ReactFiberUpdateQueue.getUpdatePriority;
+          // The error should propagate to the next boundary -— we keep looking.
+          boundary = null;
+          willRetry = false;
+        }
 
-var _require14 = ReactFiberContext;
-var resetContext$1 = _require14.resetContext;
+        node = node['return'];
+      }
+    }
 
+    if (boundary !== null) {
+      // Add to the collection of failed boundaries. This lets us know that
+      // subsequent errors in this subtree should propagate to the next boundary.
+      if (failedBoundaries === null) {
+        failedBoundaries = new Set();
+      }
+      failedBoundaries.add(boundary);
 
+      // This method is unsafe outside of the begin and complete phases.
+      // We might be in the commit phase when an error is captured.
+      // The risk is that the return path from this Fiber may not be accurate.
+      // That risk is acceptable given the benefit of providing users more context.
+      var _componentStack = getStackAddendumByWorkInProgressFiber(failedWork);
+      var _componentName = getComponentName(failedWork);
 
-{
-  var warning$22 = require$$0;
-  var ReactFiberInstrumentation$1 = ReactFiberInstrumentation_1;
-  var ReactDebugCurrentFiber$3 = ReactDebugCurrentFiber_1;
-
-  var _require15 = ReactDebugFiberPerf_1,
-      recordEffect = _require15.recordEffect,
-      recordScheduleUpdate = _require15.recordScheduleUpdate,
-      startWorkTimer = _require15.startWorkTimer,
-      stopWorkTimer = _require15.stopWorkTimer,
-      stopFailedWorkTimer = _require15.stopFailedWorkTimer,
-      startWorkLoopTimer = _require15.startWorkLoopTimer,
-      stopWorkLoopTimer = _require15.stopWorkLoopTimer,
-      startCommitTimer = _require15.startCommitTimer,
-      stopCommitTimer = _require15.stopCommitTimer,
-      startCommitHostEffectsTimer = _require15.startCommitHostEffectsTimer,
-      stopCommitHostEffectsTimer = _require15.stopCommitHostEffectsTimer,
-      startCommitLifeCyclesTimer = _require15.startCommitLifeCyclesTimer,
-      stopCommitLifeCyclesTimer = _require15.stopCommitLifeCyclesTimer;
-
-  var warnAboutUpdateOnUnmounted = function (instance) {
-    var ctor = instance.constructor;
-    warning$22(false, 'Can only update a mounted or mounting component. This usually means ' + 'you called setState, replaceState, or forceUpdate on an unmounted ' + 'component. This is a no-op.\n\nPlease check the code for the ' + '%s component.', ctor && (ctor.displayName || ctor.name) || 'ReactClass');
-  };
+      // Add to the collection of captured errors. This is stored as a global
+      // map of errors and their component stack location keyed by the boundaries
+      // that capture them. We mostly use this Map as a Set; it's a Map only to
+      // avoid adding a field to Fiber to store the error.
+      if (capturedErrors === null) {
+        capturedErrors = new Map();
+      }
 
-  var warnAboutInvalidUpdates = function (instance) {
-    switch (ReactDebugCurrentFiber$3.phase) {
-      case 'getChildContext':
-        warning$22(false, 'setState(...): Cannot call setState() inside getChildContext()');
-        break;
-      case 'render':
-        warning$22(false, 'Cannot update during an existing state transition (such as within ' + "`render` or another component's constructor). Render methods should " + 'be a pure function of props and state; constructor side-effects are ' + 'an anti-pattern, but can be moved to `componentWillMount`.');
-        break;
-    }
-  };
-}
+      var capturedError = {
+        componentName: _componentName,
+        componentStack: _componentStack,
+        error: error,
+        errorBoundary: errorBoundaryFound ? boundary.stateNode : null,
+        errorBoundaryFound: errorBoundaryFound,
+        errorBoundaryName: errorBoundaryName,
+        willRetry: willRetry
+      };
 
-var timeHeuristicForUnitOfWork = 1;
+      capturedErrors.set(boundary, capturedError);
 
-var ReactFiberScheduler = function (config) {
-  var hostContext = ReactFiberHostContext(config);
-  var hydrationContext = ReactFiberHydrationContext(config);
-  var popHostContainer = hostContext.popHostContainer,
-      popHostContext = hostContext.popHostContext,
-      resetHostContainer = hostContext.resetHostContainer;
+      try {
+        logCapturedError(capturedError);
+      } catch (e) {
+        // Prevent cycle if logCapturedError() throws.
+        // A cycle may still occur if logCapturedError renders a component that throws.
+        var suppressLogging = e && e.suppressReactErrorLogging;
+        if (!suppressLogging) {
+          console.error(e);
+        }
+      }
 
-  var _ReactFiberBeginWork = ReactFiberBeginWork(config, hostContext, hydrationContext, scheduleUpdate, getPriorityContext),
-      beginWork = _ReactFiberBeginWork.beginWork,
-      beginFailedWork = _ReactFiberBeginWork.beginFailedWork;
+      // If we're in the commit phase, defer scheduling an update on the
+      // boundary until after the commit is complete
+      if (isCommitting) {
+        if (commitPhaseBoundaries === null) {
+          commitPhaseBoundaries = new Set();
+        }
+        commitPhaseBoundaries.add(boundary);
+      } else {
+        // Otherwise, schedule an update now.
+        // TODO: Is this actually necessary during the render phase? Is it
+        // possible to unwind and continue rendering at the same priority,
+        // without corrupting internal state?
+        scheduleErrorRecovery(boundary);
+      }
+      return boundary;
+    } else if (firstUncaughtError === null) {
+      // If no boundary is found, we'll need to throw the error
+      firstUncaughtError = error;
+    }
+    return null;
+  }
 
-  var _ReactFiberCompleteWo = ReactFiberCompleteWork(config, hostContext, hydrationContext),
-      completeWork = _ReactFiberCompleteWo.completeWork;
+  function hasCapturedError(fiber) {
+    // TODO: capturedErrors should store the boundary instance, to avoid needing
+    // to check the alternate.
+    return capturedErrors !== null && (capturedErrors.has(fiber) || fiber.alternate !== null && capturedErrors.has(fiber.alternate));
+  }
 
-  var _ReactFiberCommitWork = ReactFiberCommitWork(config, captureError),
-      commitPlacement = _ReactFiberCommitWork.commitPlacement,
-      commitDeletion = _ReactFiberCommitWork.commitDeletion,
-      commitWork = _ReactFiberCommitWork.commitWork,
-      commitLifeCycles = _ReactFiberCommitWork.commitLifeCycles,
-      commitAttachRef = _ReactFiberCommitWork.commitAttachRef,
-      commitDetachRef = _ReactFiberCommitWork.commitDetachRef;
+  function isFailedBoundary(fiber) {
+    // TODO: failedBoundaries should store the boundary instance, to avoid
+    // needing to check the alternate.
+    return failedBoundaries !== null && (failedBoundaries.has(fiber) || fiber.alternate !== null && failedBoundaries.has(fiber.alternate));
+  }
 
-  var scheduleDeferredCallback = config.scheduleDeferredCallback,
-      useSyncScheduling = config.useSyncScheduling,
-      prepareForCommit = config.prepareForCommit,
-      resetAfterCommit = config.resetAfterCommit;
+  function commitErrorHandling(effectfulFiber) {
+    var capturedError = void 0;
+    if (capturedErrors !== null) {
+      capturedError = capturedErrors.get(effectfulFiber);
+      capturedErrors['delete'](effectfulFiber);
+      if (capturedError == null) {
+        if (effectfulFiber.alternate !== null) {
+          effectfulFiber = effectfulFiber.alternate;
+          capturedError = capturedErrors.get(effectfulFiber);
+          capturedErrors['delete'](effectfulFiber);
+        }
+      }
+    }
 
-  // The priority level to use when scheduling an update. We use NoWork to
-  // represent the default priority.
-  // TODO: Should we change this to an array instead of using the call stack?
-  // Might be less confusing.
+    !(capturedError != null) ? invariant(false, 'No error for given unit of work. This error is likely caused by a bug in React. Please file an issue.') : void 0;
 
-  var priorityContext = NoWork$2;
+    switch (effectfulFiber.tag) {
+      case ClassComponent:
+        var instance = effectfulFiber.stateNode;
 
-  // Keeps track of whether we're currently in a work loop.
-  var isPerformingWork = false;
+        var info = {
+          componentStack: capturedError.componentStack
+        };
 
-  // Keeps track of whether the current deadline has expired.
-  var deadlineHasExpired = false;
+        // Allow the boundary to handle the error, usually by scheduling
+        // an update to itself
+        instance.componentDidCatch(capturedError.error, info);
+        return;
+      case HostRoot:
+        if (firstUncaughtError === null) {
+          firstUncaughtError = capturedError.error;
+        }
+        return;
+      default:
+        invariant(false, 'Invalid type of work. This error is likely caused by a bug in React. Please file an issue.');
+    }
+  }
 
-  // Keeps track of whether we should should batch sync updates.
-  var isBatchingUpdates = false;
+  function unwindContexts(from, to) {
+    var node = from;
+    while (node !== null) {
+      switch (node.tag) {
+        case ClassComponent:
+          popContextProvider(node);
+          break;
+        case HostComponent:
+          popHostContext(node);
+          break;
+        case HostRoot:
+          popHostContainer(node);
+          break;
+        case HostPortal:
+          popHostContainer(node);
+          break;
+      }
+      if (node === to || node.alternate === to) {
+        stopFailedWorkTimer(node);
+        break;
+      } else {
+        stopWorkTimer(node);
+      }
+      node = node['return'];
+    }
+  }
 
-  // This is needed for the weird case where the initial mount is synchronous
-  // even inside batchedUpdates :(
-  var isUnbatchingUpdates = false;
+  function computeAsyncExpiration() {
+    // Given the current clock time, returns an expiration time. We use rounding
+    // to batch like updates together.
+    // Should complete within ~1000ms. 1200ms max.
+    var currentTime = recalculateCurrentTime();
+    var expirationMs = 1000;
+    var bucketSizeMs = 200;
+    return computeExpirationBucket(currentTime, expirationMs, bucketSizeMs);
+  }
 
-  // The next work in progress fiber that we're currently working on.
-  var nextUnitOfWork = null;
-  var nextPriorityLevel = NoWork$2;
+  function computeExpirationForFiber(fiber) {
+    var expirationTime = void 0;
+    if (expirationContext !== NoWork) {
+      // An explicit expiration context was set;
+      expirationTime = expirationContext;
+    } else if (isWorking) {
+      if (isCommitting) {
+        // Updates that occur during the commit phase should have sync priority
+        // by default.
+        expirationTime = Sync;
+      } else {
+        // Updates during the render phase should expire at the same time as
+        // the work that is being rendered.
+        expirationTime = nextRenderExpirationTime;
+      }
+    } else {
+      // No explicit expiration context was set, and we're not currently
+      // performing work. Calculate a new expiration time.
+      if (useSyncScheduling && !(fiber.internalContextTag & AsyncUpdates)) {
+        // This is a sync update
+        expirationTime = Sync;
+      } else {
+        // This is an async update
+        expirationTime = computeAsyncExpiration();
+      }
+    }
+    return expirationTime;
+  }
 
-  // The next fiber with an effect that we're currently committing.
-  var nextEffect = null;
+  function scheduleWork(fiber, expirationTime) {
+    return scheduleWorkImpl(fiber, expirationTime, false);
+  }
 
-  var pendingCommit = null;
+  function checkRootNeedsClearing(root, fiber, expirationTime) {
+    if (!isWorking && root === nextRoot && expirationTime < nextRenderExpirationTime) {
+      // Restart the root from the top.
+      if (nextUnitOfWork !== null) {
+        // This is an interruption. (Used for performance tracking.)
+        interruptedBy = fiber;
+      }
+      nextRoot = null;
+      nextUnitOfWork = null;
+      nextRenderExpirationTime = NoWork;
+    }
+  }
 
-  // Linked list of roots with scheduled work on them.
-  var nextScheduledRoot = null;
-  var lastScheduledRoot = null;
+  function scheduleWorkImpl(fiber, expirationTime, isErrorRecovery) {
+    recordScheduleUpdate();
 
-  // Keep track of which host environment callbacks are scheduled.
-  var isCallbackScheduled = false;
+    {
+      if (!isErrorRecovery && fiber.tag === ClassComponent) {
+        var instance = fiber.stateNode;
+        warnAboutInvalidUpdates(instance);
+      }
+    }
 
-  // Keep track of which fibers have captured an error that need to be handled.
-  // Work is removed from this collection after componentDidCatch is called.
-  var capturedErrors = null;
-  // Keep track of which fibers have failed during the current batch of work.
-  // This is a different set than capturedErrors, because it is not reset until
-  // the end of the batch. This is needed to propagate errors correctly if a
-  // subtree fails more than once.
-  var failedBoundaries = null;
-  // Error boundaries that captured an error during the current commit.
-  var commitPhaseBoundaries = null;
-  var firstUncaughtError = null;
-  var didFatal = false;
+    var node = fiber;
+    while (node !== null) {
+      // Walk the parent path to the root and update each node's
+      // expiration time.
+      if (node.expirationTime === NoWork || node.expirationTime > expirationTime) {
+        node.expirationTime = expirationTime;
+      }
+      if (node.alternate !== null) {
+        if (node.alternate.expirationTime === NoWork || node.alternate.expirationTime > expirationTime) {
+          node.alternate.expirationTime = expirationTime;
+        }
+      }
+      if (node['return'] === null) {
+        if (node.tag === HostRoot) {
+          var root = node.stateNode;
 
-  var isCommitting = false;
-  var isUnmounting = false;
+          checkRootNeedsClearing(root, fiber, expirationTime);
+          requestWork(root, expirationTime);
+          checkRootNeedsClearing(root, fiber, expirationTime);
+        } else {
+          {
+            if (!isErrorRecovery && fiber.tag === ClassComponent) {
+              warnAboutUpdateOnUnmounted(fiber);
+            }
+          }
+          return;
+        }
+      }
+      node = node['return'];
+    }
+  }
+
+  function scheduleErrorRecovery(fiber) {
+    scheduleWorkImpl(fiber, Sync, true);
+  }
+
+  function recalculateCurrentTime() {
+    // Subtract initial time so it fits inside 32bits
+    var ms = now() - startTime;
+    mostRecentCurrentTime = msToExpirationTime(ms);
+    return mostRecentCurrentTime;
+  }
+
+  function deferredUpdates(fn) {
+    var previousExpirationContext = expirationContext;
+    expirationContext = computeAsyncExpiration();
+    try {
+      return fn();
+    } finally {
+      expirationContext = previousExpirationContext;
+    }
+  }
+
+  function syncUpdates(fn) {
+    var previousExpirationContext = expirationContext;
+    expirationContext = Sync;
+    try {
+      return fn();
+    } finally {
+      expirationContext = previousExpirationContext;
+    }
+  }
+
+  // TODO: Everything below this is written as if it has been lifted to the
+  // renderers. I'll do this in a follow-up.
+
+  // Linked-list of roots
+  var firstScheduledRoot = null;
+  var lastScheduledRoot = null;
+
+  var callbackExpirationTime = NoWork;
+  var callbackID = -1;
+  var isRendering = false;
+  var nextFlushedRoot = null;
+  var nextFlushedExpirationTime = NoWork;
+  var deadlineDidExpire = false;
+  var hasUnhandledError = false;
+  var unhandledError = null;
+  var deadline = null;
+
+  var isBatchingUpdates = false;
+  var isUnbatchingUpdates = false;
 
   // Use these to prevent an infinite loop of nested updates
   var NESTED_UPDATE_LIMIT = 1000;
   var nestedUpdateCount = 0;
-  var nextRenderedTree = null;
 
-  function resetContextStack() {
-    // Reset the stack
-    reset$1();
-    // Reset the cursors
-    resetContext$1();
-    resetHostContainer();
-  }
+  var timeHeuristicForUnitOfWork = 1;
 
-  // resetNextUnitOfWork mutates the current priority context. It is reset after
-  // after the workLoop exits, so never call resetNextUnitOfWork from outside
-  // the work loop.
-  function resetNextUnitOfWork() {
-    // Clear out roots with no more work on them, or if they have uncaught errors
-    while (nextScheduledRoot !== null && nextScheduledRoot.current.pendingWorkPriority === NoWork$2) {
-      // Unschedule this root.
-      nextScheduledRoot.isScheduled = false;
-      // Read the next pointer now.
-      // We need to clear it in case this root gets scheduled again later.
-      var next = nextScheduledRoot.nextScheduledRoot;
-      nextScheduledRoot.nextScheduledRoot = null;
-      // Exit if we cleared all the roots and there's no work to do.
-      if (nextScheduledRoot === lastScheduledRoot) {
-        nextScheduledRoot = null;
-        lastScheduledRoot = null;
-        nextPriorityLevel = NoWork$2;
-        return null;
+  function scheduleCallbackWithExpiration(expirationTime) {
+    if (callbackExpirationTime !== NoWork) {
+      // A callback is already scheduled. Check its expiration time (timeout).
+      if (expirationTime > callbackExpirationTime) {
+        // Existing callback has sufficient timeout. Exit.
+        return;
+      } else {
+        // Existing callback has insufficient timeout. Cancel and schedule a
+        // new one.
+        cancelDeferredCallback(callbackID);
       }
-      // Continue with the next root.
-      // If there's no work on it, it will get unscheduled too.
-      nextScheduledRoot = next;
+      // The request callback timer is already running. Don't start a new one.
+    } else {
+      startRequestCallbackTimer();
     }
 
-    var root = nextScheduledRoot;
-    var highestPriorityRoot = null;
-    var highestPriorityLevel = NoWork$2;
-    while (root !== null) {
-      if (root.current.pendingWorkPriority !== NoWork$2 && (highestPriorityLevel === NoWork$2 || highestPriorityLevel > root.current.pendingWorkPriority)) {
-        highestPriorityLevel = root.current.pendingWorkPriority;
-        highestPriorityRoot = root;
-      }
-      // We didn't find anything to do in this root, so let's try the next one.
-      root = root.nextScheduledRoot;
-    }
-    if (highestPriorityRoot !== null) {
-      nextPriorityLevel = highestPriorityLevel;
-      // Before we start any new work, let's make sure that we have a fresh
-      // stack to work from.
-      // TODO: This call is buried a bit too deep. It would be nice to have
-      // a single point which happens right before any new work and
-      // unfortunately this is it.
-      resetContextStack();
+    // Compute a timeout for the given expiration time.
+    var currentMs = now() - startTime;
+    var expirationMs = expirationTimeToMs(expirationTime);
+    var timeout = expirationMs - currentMs;
+
+    callbackExpirationTime = expirationTime;
+    callbackID = scheduleDeferredCallback(performAsyncWork, { timeout: timeout });
+  }
+
+  // requestWork is called by the scheduler whenever a root receives an update.
+  // It's up to the renderer to call renderRoot at some point in the future.
+  function requestWork(root, expirationTime) {
+    if (nestedUpdateCount > NESTED_UPDATE_LIMIT) {
+      invariant(false, 'Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops.');
+    }
 
-      nextUnitOfWork = createWorkInProgress$1(highestPriorityRoot.current, highestPriorityLevel);
-      if (highestPriorityRoot !== nextRenderedTree) {
-        // We've switched trees. Reset the nested update counter.
-        nestedUpdateCount = 0;
-        nextRenderedTree = highestPriorityRoot;
+    // Add the root to the schedule.
+    // Check if this root is already part of the schedule.
+    if (root.nextScheduledRoot === null) {
+      // This root is not already scheduled. Add it.
+      root.remainingExpirationTime = expirationTime;
+      if (lastScheduledRoot === null) {
+        firstScheduledRoot = lastScheduledRoot = root;
+        root.nextScheduledRoot = root;
+      } else {
+        lastScheduledRoot.nextScheduledRoot = root;
+        lastScheduledRoot = root;
+        lastScheduledRoot.nextScheduledRoot = firstScheduledRoot;
+      }
+    } else {
+      // This root is already scheduled, but its priority may have increased.
+      var remainingExpirationTime = root.remainingExpirationTime;
+      if (remainingExpirationTime === NoWork || expirationTime < remainingExpirationTime) {
+        // Update the priority.
+        root.remainingExpirationTime = expirationTime;
       }
-      return;
     }
 
-    nextPriorityLevel = NoWork$2;
-    nextUnitOfWork = null;
-    nextRenderedTree = null;
-    return;
-  }
+    if (isRendering) {
+      // Prevent reentrancy. Remaining work will be scheduled at the end of
+      // the currently rendering batch.
+      return;
+    }
 
-  function commitAllHostEffects() {
-    while (nextEffect !== null) {
-      {
-        ReactDebugCurrentFiber$3.setCurrentFiber(nextEffect, null);
-        recordEffect();
+    if (isBatchingUpdates) {
+      // Flush work at the end of the batch.
+      if (isUnbatchingUpdates) {
+        // ...unless we're inside unbatchedUpdates, in which case we should
+        // flush it now.
+        nextFlushedRoot = root;
+        nextFlushedExpirationTime = Sync;
+        performWorkOnRoot(nextFlushedRoot, nextFlushedExpirationTime);
       }
+      return;
+    }
 
-      var effectTag = nextEffect.effectTag;
-      if (effectTag & ContentReset) {
-        config.resetTextContent(nextEffect.stateNode);
-      }
+    // TODO: Get rid of Sync and use current time?
+    if (expirationTime === Sync) {
+      performWork(Sync, null);
+    } else {
+      scheduleCallbackWithExpiration(expirationTime);
+    }
+  }
 
-      if (effectTag & Ref) {
-        var current = nextEffect.alternate;
-        if (current !== null) {
-          commitDetachRef(current);
-        }
-      }
+  function findHighestPriorityRoot() {
+    var highestPriorityWork = NoWork;
+    var highestPriorityRoot = null;
 
-      // The following switch statement is only concerned about placement,
-      // updates, and deletions. To avoid needing to add a case for every
-      // possible bitmap value, we remove the secondary effects from the
-      // effect tag and switch on that value.
-      var primaryEffectTag = effectTag & ~(Callback | Err | ContentReset | Ref | PerformedWork);
-      switch (primaryEffectTag) {
-        case Placement$1:
-          {
-            commitPlacement(nextEffect);
-            // Clear the "placement" from effect tag so that we know that this is inserted, before
-            // any life-cycles like componentDidMount gets called.
-            // TODO: findDOMNode doesn't rely on this any more but isMounted
-            // does and isMounted is deprecated anyway so we should be able
-            // to kill this.
-            nextEffect.effectTag &= ~Placement$1;
+    if (lastScheduledRoot !== null) {
+      var previousScheduledRoot = lastScheduledRoot;
+      var root = firstScheduledRoot;
+      while (root !== null) {
+        var remainingExpirationTime = root.remainingExpirationTime;
+        if (remainingExpirationTime === NoWork) {
+          // This root no longer has work. Remove it from the scheduler.
+
+          // TODO: This check is redudant, but Flow is confused by the branch
+          // below where we set lastScheduledRoot to null, even though we break
+          // from the loop right after.
+          !(previousScheduledRoot !== null && lastScheduledRoot !== null) ? invariant(false, 'Should have a previous and last root. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+          if (root === root.nextScheduledRoot) {
+            // This is the only root in the list.
+            root.nextScheduledRoot = null;
+            firstScheduledRoot = lastScheduledRoot = null;
             break;
-          }
-        case PlacementAndUpdate:
-          {
-            // Placement
-            commitPlacement(nextEffect);
-            // Clear the "placement" from effect tag so that we know that this is inserted, before
-            // any life-cycles like componentDidMount gets called.
-            nextEffect.effectTag &= ~Placement$1;
-
-            // Update
-            var _current = nextEffect.alternate;
-            commitWork(_current, nextEffect);
+          } else if (root === firstScheduledRoot) {
+            // This is the first root in the list.
+            var next = root.nextScheduledRoot;
+            firstScheduledRoot = next;
+            lastScheduledRoot.nextScheduledRoot = next;
+            root.nextScheduledRoot = null;
+          } else if (root === lastScheduledRoot) {
+            // This is the last root in the list.
+            lastScheduledRoot = previousScheduledRoot;
+            lastScheduledRoot.nextScheduledRoot = firstScheduledRoot;
+            root.nextScheduledRoot = null;
             break;
+          } else {
+            previousScheduledRoot.nextScheduledRoot = root.nextScheduledRoot;
+            root.nextScheduledRoot = null;
           }
-        case Update:
-          {
-            var _current2 = nextEffect.alternate;
-            commitWork(_current2, nextEffect);
-            break;
-          }
-        case Deletion:
-          {
-            isUnmounting = true;
-            commitDeletion(nextEffect);
-            isUnmounting = false;
+          root = previousScheduledRoot.nextScheduledRoot;
+        } else {
+          if (highestPriorityWork === NoWork || remainingExpirationTime < highestPriorityWork) {
+            // Update the priority, if it's higher
+            highestPriorityWork = remainingExpirationTime;
+            highestPriorityRoot = root;
+          }
+          if (root === lastScheduledRoot) {
             break;
           }
+          previousScheduledRoot = root;
+          root = root.nextScheduledRoot;
+        }
       }
-      nextEffect = nextEffect.nextEffect;
     }
 
-    {
-      ReactDebugCurrentFiber$3.resetCurrentFiber();
+    // If the next root is the same as the previous root, this is a nested
+    // update. To prevent an infinite loop, increment the nested update count.
+    var previousFlushedRoot = nextFlushedRoot;
+    if (previousFlushedRoot !== null && previousFlushedRoot === highestPriorityRoot) {
+      nestedUpdateCount++;
+    } else {
+      // Reset whenever we switch roots.
+      nestedUpdateCount = 0;
     }
+    nextFlushedRoot = highestPriorityRoot;
+    nextFlushedExpirationTime = highestPriorityWork;
   }
 
-  function commitAllLifeCycles() {
-    while (nextEffect !== null) {
-      var effectTag = nextEffect.effectTag;
+  function performAsyncWork(dl) {
+    performWork(NoWork, dl);
+  }
 
-      // Use Task priority for lifecycle updates
-      if (effectTag & (Update | Callback)) {
-        {
-          recordEffect();
-        }
-        var current = nextEffect.alternate;
-        commitLifeCycles(current, nextEffect);
-      }
+  function performWork(minExpirationTime, dl) {
+    deadline = dl;
 
-      if (effectTag & Ref) {
-        {
-          recordEffect();
-        }
-        commitAttachRef(nextEffect);
-      }
+    // Keep working on roots until there's no more work, or until the we reach
+    // the deadline.
+    findHighestPriorityRoot();
 
-      if (effectTag & Err) {
-        {
-          recordEffect();
-        }
-        commitErrorHandling(nextEffect);
-      }
+    if (enableUserTimingAPI && deadline !== null) {
+      var didExpire = nextFlushedExpirationTime < recalculateCurrentTime();
+      stopRequestCallbackTimer(didExpire);
+    }
 
-      var next = nextEffect.nextEffect;
-      // Ensure that we clean these up so that we don't accidentally keep them.
-      // I'm not actually sure this matters because we can't reset firstEffect
-      // and lastEffect since they're on every node, not just the effectful
-      // ones. So we have to clean everything as we reuse nodes anyway.
-      nextEffect.nextEffect = null;
-      // Ensure that we reset the effectTag here so that we can rely on effect
-      // tags to reason about the current life-cycle.
-      nextEffect = next;
+    while (nextFlushedRoot !== null && nextFlushedExpirationTime !== NoWork && (minExpirationTime === NoWork || nextFlushedExpirationTime <= minExpirationTime) && !deadlineDidExpire) {
+      performWorkOnRoot(nextFlushedRoot, nextFlushedExpirationTime);
+      // Find the next highest priority work.
+      findHighestPriorityRoot();
     }
-  }
 
-  function commitAllWork(finishedWork) {
-    // We keep track of this so that captureError can collect any boundaries
-    // that capture an error during the commit phase. The reason these aren't
-    // local to this function is because errors that occur during cWU are
-    // captured elsewhere, to prevent the unmount from being interrupted.
-    isCommitting = true;
-    {
-      startCommitTimer();
+    // We're done flushing work. Either we ran out of time in this callback,
+    // or there's no more work left with sufficient priority.
+
+    // If we're inside a callback, set this to false since we just completed it.
+    if (deadline !== null) {
+      callbackExpirationTime = NoWork;
+      callbackID = -1;
+    }
+    // If there's work left over, schedule a new callback.
+    if (nextFlushedExpirationTime !== NoWork) {
+      scheduleCallbackWithExpiration(nextFlushedExpirationTime);
     }
 
-    pendingCommit = null;
-    var root = finishedWork.stateNode;
-    !(root.current !== finishedWork) ? invariant(false, 'Cannot commit the same tree as before. This is probably a bug related to the return field. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    // Clean-up.
+    deadline = null;
+    deadlineDidExpire = false;
+    nestedUpdateCount = 0;
 
-    if (nextPriorityLevel === SynchronousPriority$1 || nextPriorityLevel === TaskPriority$1) {
-      // Keep track of the number of iterations to prevent an infinite
-      // update loop.
-      nestedUpdateCount++;
+    if (hasUnhandledError) {
+      var _error4 = unhandledError;
+      unhandledError = null;
+      hasUnhandledError = false;
+      throw _error4;
     }
+  }
 
-    // Reset this to null before calling lifecycles
-    ReactCurrentOwner$1.current = null;
+  function performWorkOnRoot(root, expirationTime) {
+    !!isRendering ? invariant(false, 'performWorkOnRoot was called recursively. This error is likely caused by a bug in React. Please file an issue.') : void 0;
 
-    var firstEffect = void 0;
-    if (finishedWork.effectTag > PerformedWork) {
-      // A fiber's effect list consists only of its children, not itself. So if
-      // the root has an effect, we need to add it to the end of the list. The
-      // resulting list is the set that would belong to the root's parent, if
-      // it had one; that is, all the effects in the tree including the root.
-      if (finishedWork.lastEffect !== null) {
-        finishedWork.lastEffect.nextEffect = finishedWork;
-        firstEffect = finishedWork.firstEffect;
+    isRendering = true;
+
+    // Check if this is async work or sync/expired work.
+    // TODO: Pass current time as argument to renderRoot, commitRoot
+    if (expirationTime <= recalculateCurrentTime()) {
+      // Flush sync work.
+      var finishedWork = root.finishedWork;
+      if (finishedWork !== null) {
+        // This root is already complete. We can commit it.
+        root.finishedWork = null;
+        root.remainingExpirationTime = commitRoot(finishedWork);
       } else {
-        firstEffect = finishedWork;
+        root.finishedWork = null;
+        finishedWork = renderRoot(root, expirationTime);
+        if (finishedWork !== null) {
+          // We've completed the root. Commit it.
+          root.remainingExpirationTime = commitRoot(finishedWork);
+        }
       }
     } else {
-      // There is no effect on the root.
-      firstEffect = finishedWork.firstEffect;
+      // Flush async work.
+      var _finishedWork = root.finishedWork;
+      if (_finishedWork !== null) {
+        // This root is already complete. We can commit it.
+        root.finishedWork = null;
+        root.remainingExpirationTime = commitRoot(_finishedWork);
+      } else {
+        root.finishedWork = null;
+        _finishedWork = renderRoot(root, expirationTime);
+        if (_finishedWork !== null) {
+          // We've completed the root. Check the deadline one more time
+          // before committing.
+          if (!shouldYield()) {
+            // Still time left. Commit the root.
+            root.remainingExpirationTime = commitRoot(_finishedWork);
+          } else {
+            // There's no time left. Mark this root as complete. We'll come
+            // back and commit it later.
+            root.finishedWork = _finishedWork;
+          }
+        }
+      }
     }
 
-    prepareForCommit();
+    isRendering = false;
+  }
 
-    // Commit all the side-effects within a tree. We'll do this in two passes.
-    // The first pass performs all the host insertions, updates, deletions and
-    // ref unmounts.
-    nextEffect = firstEffect;
-    {
-      startCommitHostEffectsTimer();
+  // When working on async work, the reconciler asks the renderer if it should
+  // yield execution. For DOM, we implement this with requestIdleCallback.
+  function shouldYield() {
+    if (deadline === null) {
+      return false;
     }
-    while (nextEffect !== null) {
-      var didError = false;
-      var _error = void 0;
-      {
-        invokeGuardedCallback$1(null, commitAllHostEffects, null);
-        if (hasCaughtError()) {
-          didError = true;
-          _error = clearCaughtError();
-        }
+    if (deadline.timeRemaining() > timeHeuristicForUnitOfWork) {
+      // Disregard deadline.didTimeout. Only expired work should be flushed
+      // during a timeout. This path is only hit for non-expired work.
+      return false;
+    }
+    deadlineDidExpire = true;
+    return true;
+  }
+
+  // TODO: Not happy about this hook. Conceptually, renderRoot should return a
+  // tuple of (isReadyForCommit, didError, error)
+  function onUncaughtError(error) {
+    !(nextFlushedRoot !== null) ? invariant(false, 'Should be working on a root. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+    // Unschedule this root so we don't work on it again until there's
+    // another update.
+    nextFlushedRoot.remainingExpirationTime = NoWork;
+    if (!hasUnhandledError) {
+      hasUnhandledError = true;
+      unhandledError = error;
+    }
+  }
+
+  // TODO: Batching should be implemented at the renderer level, not inside
+  // the reconciler.
+  function batchedUpdates(fn, a) {
+    var previousIsBatchingUpdates = isBatchingUpdates;
+    isBatchingUpdates = true;
+    try {
+      return fn(a);
+    } finally {
+      isBatchingUpdates = previousIsBatchingUpdates;
+      if (!isBatchingUpdates && !isRendering) {
+        performWork(Sync, null);
       }
-      if (didError) {
-        !(nextEffect !== null) ? invariant(false, 'Should have next effect. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-        captureError(nextEffect, _error);
-        // Clean-up
-        if (nextEffect !== null) {
-          nextEffect = nextEffect.nextEffect;
-        }
+    }
+  }
+
+  // TODO: Batching should be implemented at the renderer level, not inside
+  // the reconciler.
+  function unbatchedUpdates(fn) {
+    if (isBatchingUpdates && !isUnbatchingUpdates) {
+      isUnbatchingUpdates = true;
+      try {
+        return fn();
+      } finally {
+        isUnbatchingUpdates = false;
       }
     }
-    {
-      stopCommitHostEffectsTimer();
+    return fn();
+  }
+
+  // TODO: Batching should be implemented at the renderer level, not within
+  // the reconciler.
+  function flushSync(fn) {
+    var previousIsBatchingUpdates = isBatchingUpdates;
+    isBatchingUpdates = true;
+    try {
+      return syncUpdates(fn);
+    } finally {
+      isBatchingUpdates = previousIsBatchingUpdates;
+      !!isRendering ? invariant(false, 'flushSync was called from inside a lifecycle method. It cannot be called when React is already rendering.') : void 0;
+      performWork(Sync, null);
     }
+  }
 
-    resetAfterCommit();
+  return {
+    computeAsyncExpiration: computeAsyncExpiration,
+    computeExpirationForFiber: computeExpirationForFiber,
+    scheduleWork: scheduleWork,
+    batchedUpdates: batchedUpdates,
+    unbatchedUpdates: unbatchedUpdates,
+    flushSync: flushSync,
+    deferredUpdates: deferredUpdates
+  };
+};
 
-    // The work-in-progress tree is now the current tree. This must come after
-    // the first pass of the commit phase, so that the previous tree is still
-    // current during componentWillUnmount, but before the second pass, so that
-    // the finished work is current during componentDidMount/Update.
-    root.current = finishedWork;
+{
+  var didWarnAboutNestedUpdates = false;
+}
 
-    // In the second pass we'll perform all life-cycles and ref callbacks.
-    // Life-cycles happen as a separate pass so that all placements, updates,
-    // and deletions in the entire tree have already been invoked.
-    // This pass also triggers any renderer-specific initial effects.
-    nextEffect = firstEffect;
+// 0 is PROD, 1 is DEV.
+// Might add PROFILE later.
+
+
+function getContextForSubtree(parentComponent) {
+  if (!parentComponent) {
+    return emptyObject;
+  }
+
+  var fiber = get(parentComponent);
+  var parentContext = findCurrentUnmaskedContext(fiber);
+  return isContextProvider(fiber) ? processChildContext(fiber, parentContext) : parentContext;
+}
+
+var ReactFiberReconciler$1 = function (config) {
+  var getPublicInstance = config.getPublicInstance;
+
+  var _ReactFiberScheduler = ReactFiberScheduler(config),
+      computeAsyncExpiration = _ReactFiberScheduler.computeAsyncExpiration,
+      computeExpirationForFiber = _ReactFiberScheduler.computeExpirationForFiber,
+      scheduleWork = _ReactFiberScheduler.scheduleWork,
+      batchedUpdates = _ReactFiberScheduler.batchedUpdates,
+      unbatchedUpdates = _ReactFiberScheduler.unbatchedUpdates,
+      flushSync = _ReactFiberScheduler.flushSync,
+      deferredUpdates = _ReactFiberScheduler.deferredUpdates;
+
+  function scheduleTopLevelUpdate(current, element, callback) {
     {
-      startCommitLifeCyclesTimer();
-    }
-    while (nextEffect !== null) {
-      var _didError = false;
-      var _error2 = void 0;
-      {
-        invokeGuardedCallback$1(null, commitAllLifeCycles, null);
-        if (hasCaughtError()) {
-          _didError = true;
-          _error2 = clearCaughtError();
-        }
-      }
-      if (_didError) {
-        !(nextEffect !== null) ? invariant(false, 'Should have next effect. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-        captureError(nextEffect, _error2);
-        if (nextEffect !== null) {
-          nextEffect = nextEffect.nextEffect;
-        }
+      if (ReactDebugCurrentFiber.phase === 'render' && ReactDebugCurrentFiber.current !== null && !didWarnAboutNestedUpdates) {
+        didWarnAboutNestedUpdates = true;
+        warning(false, 'Render methods should be a pure function of props and state; ' + 'triggering nested component updates from render is not allowed. ' + 'If necessary, trigger nested updates in componentDidUpdate.\n\n' + 'Check the render method of %s.', getComponentName(ReactDebugCurrentFiber.current) || 'Unknown');
       }
     }
 
-    isCommitting = false;
+    callback = callback === undefined ? null : callback;
     {
-      stopCommitLifeCyclesTimer();
-      stopCommitTimer();
-    }
-    if (typeof onCommitRoot === 'function') {
-      onCommitRoot(finishedWork.stateNode);
-    }
-    if (true && ReactFiberInstrumentation$1.debugTool) {
-      ReactFiberInstrumentation$1.debugTool.onCommitWork(finishedWork);
+      warning(callback === null || typeof callback === 'function', 'render(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callback);
     }
 
-    // If we caught any errors during this commit, schedule their boundaries
-    // to update.
-    if (commitPhaseBoundaries) {
-      commitPhaseBoundaries.forEach(scheduleErrorRecovery);
-      commitPhaseBoundaries = null;
+    var expirationTime = void 0;
+    // Check if the top-level element is an async wrapper component. If so,
+    // treat updates to the root as async. This is a bit weird but lets us
+    // avoid a separate `renderAsync` API.
+    if (enableAsyncSubtreeAPI && element != null && element.type != null && element.type.prototype != null && element.type.prototype.unstable_isAsyncReactComponent === true) {
+      expirationTime = computeAsyncExpiration();
+    } else {
+      expirationTime = computeExpirationForFiber(current);
     }
 
-    // This tree is done. Reset the unit of work pointer to the next highest
-    // priority root. If there's no more work left, the pointer is set to null.
-    resetNextUnitOfWork();
+    var update = {
+      expirationTime: expirationTime,
+      partialState: { element: element },
+      callback: callback,
+      isReplace: false,
+      isForced: false,
+      nextCallback: null,
+      next: null
+    };
+    insertUpdateIntoFiber(current, update);
+    scheduleWork(current, expirationTime);
   }
 
-  function resetWorkPriority(workInProgress, renderPriority) {
-    if (workInProgress.pendingWorkPriority !== NoWork$2 && workInProgress.pendingWorkPriority > renderPriority) {
-      // This was a down-prioritization. Don't bubble priority from children.
-      return;
+  function findHostInstance(fiber) {
+    var hostFiber = findCurrentHostFiber(fiber);
+    if (hostFiber === null) {
+      return null;
     }
+    return hostFiber.stateNode;
+  }
 
-    // Check for pending update priority.
-    var newPriority = getUpdatePriority$1(workInProgress);
+  return {
+    createContainer: function (containerInfo, hydrate) {
+      return createFiberRoot(containerInfo, hydrate);
+    },
+    updateContainer: function (element, container, parentComponent, callback) {
+      // TODO: If this is a nested container, this won't be the root.
+      var current = container.current;
 
-    // TODO: Coroutines need to visit stateNode
+      {
+        if (ReactFiberInstrumentation_1.debugTool) {
+          if (current.alternate === null) {
+            ReactFiberInstrumentation_1.debugTool.onMountContainer(container);
+          } else if (element === null) {
+            ReactFiberInstrumentation_1.debugTool.onUnmountContainer(container);
+          } else {
+            ReactFiberInstrumentation_1.debugTool.onUpdateContainer(container);
+          }
+        }
+      }
 
-    var child = workInProgress.child;
-    while (child !== null) {
-      // Ensure that remaining work priority bubbles up.
-      newPriority = largerPriority$1(newPriority, child.pendingWorkPriority);
-      child = child.sibling;
-    }
-    workInProgress.pendingWorkPriority = newPriority;
-  }
+      var context = getContextForSubtree(parentComponent);
+      if (container.context === null) {
+        container.context = context;
+      } else {
+        container.pendingContext = context;
+      }
 
-  function completeUnitOfWork(workInProgress) {
-    while (true) {
-      // The current, flushed, state of this fiber is the alternate.
-      // Ideally nothing should rely on this, but relying on it here
-      // means that we don't need an additional field on the work in
-      // progress.
-      var current = workInProgress.alternate;
-      var next = completeWork(current, workInProgress, nextPriorityLevel);
+      scheduleTopLevelUpdate(current, element, callback);
+    },
 
-      var returnFiber = workInProgress['return'];
-      var siblingFiber = workInProgress.sibling;
 
-      resetWorkPriority(workInProgress, nextPriorityLevel);
+    batchedUpdates: batchedUpdates,
 
-      if (next !== null) {
-        {
-          stopWorkTimer(workInProgress);
-        }
-        if (true && ReactFiberInstrumentation$1.debugTool) {
-          ReactFiberInstrumentation$1.debugTool.onCompleteWork(workInProgress);
-        }
-        // If completing this work spawned new work, do that next. We'll come
-        // back here again.
-        return next;
-      }
+    unbatchedUpdates: unbatchedUpdates,
 
-      if (returnFiber !== null) {
-        // Append all the effects of the subtree and this fiber onto the effect
-        // list of the parent. The completion order of the children affects the
-        // side-effect order.
-        if (returnFiber.firstEffect === null) {
-          returnFiber.firstEffect = workInProgress.firstEffect;
-        }
-        if (workInProgress.lastEffect !== null) {
-          if (returnFiber.lastEffect !== null) {
-            returnFiber.lastEffect.nextEffect = workInProgress.firstEffect;
-          }
-          returnFiber.lastEffect = workInProgress.lastEffect;
-        }
+    deferredUpdates: deferredUpdates,
 
-        // If this fiber had side-effects, we append it AFTER the children's
-        // side-effects. We can perform certain side-effects earlier if
-        // needed, by doing multiple passes over the effect list. We don't want
-        // to schedule our own side-effect on our own list because if end up
-        // reusing children we'll schedule this effect onto itself since we're
-        // at the end.
-        var effectTag = workInProgress.effectTag;
-        // Skip both NoWork and PerformedWork tags when creating the effect list.
-        // PerformedWork effect is read by React DevTools but shouldn't be committed.
-        if (effectTag > PerformedWork) {
-          if (returnFiber.lastEffect !== null) {
-            returnFiber.lastEffect.nextEffect = workInProgress;
-          } else {
-            returnFiber.firstEffect = workInProgress;
-          }
-          returnFiber.lastEffect = workInProgress;
-        }
-      }
+    flushSync: flushSync,
 
-      {
-        stopWorkTimer(workInProgress);
+    getPublicRootInstance: function (container) {
+      var containerFiber = container.current;
+      if (!containerFiber.child) {
+        return null;
       }
-      if (true && ReactFiberInstrumentation$1.debugTool) {
-        ReactFiberInstrumentation$1.debugTool.onCompleteWork(workInProgress);
+      switch (containerFiber.child.tag) {
+        case HostComponent:
+          return getPublicInstance(containerFiber.child.stateNode);
+        default:
+          return containerFiber.child.stateNode;
       }
+    },
 
-      if (siblingFiber !== null) {
-        // If there is more work to do in this returnFiber, do that next.
-        return siblingFiber;
-      } else if (returnFiber !== null) {
-        // If there's no more work in this returnFiber. Complete the returnFiber.
-        workInProgress = returnFiber;
-        continue;
-      } else {
-        // We've reached the root. Mark the root as pending commit. Depending
-        // on how much time we have left, we'll either commit it now or in
-        // the next frame.
-        pendingCommit = workInProgress;
+
+    findHostInstance: findHostInstance,
+
+    findHostInstanceWithNoPortals: function (fiber) {
+      var hostFiber = findCurrentHostFiberWithNoPortals(fiber);
+      if (hostFiber === null) {
         return null;
       }
+      return hostFiber.stateNode;
+    },
+    injectIntoDevTools: function (devToolsConfig) {
+      var findFiberByHostInstance = devToolsConfig.findFiberByHostInstance;
+
+      return injectInternals(_assign({}, devToolsConfig, {
+        findHostInstanceByFiber: function (fiber) {
+          return findHostInstance(fiber);
+        },
+        findFiberByHostInstance: function (instance) {
+          if (!findFiberByHostInstance) {
+            // Might not be implemented by the renderer.
+            return null;
+          }
+          return findFiberByHostInstance(instance);
+        }
+      }));
     }
+  };
+};
 
-    // Without this explicit null return Flow complains of invalid return type
-    // TODO Remove the above while(true) loop
-    // eslint-disable-next-line no-unreachable
-    return null;
-  }
-
-  function performUnitOfWork(workInProgress) {
-    // The current, flushed, state of this fiber is the alternate.
-    // Ideally nothing should rely on this, but relying on it here
-    // means that we don't need an additional field on the work in
-    // progress.
-    var current = workInProgress.alternate;
-
-    // See if beginning this work spawns more work.
-    {
-      startWorkTimer(workInProgress);
-    }
-    var next = beginWork(current, workInProgress, nextPriorityLevel);
-    if (true && ReactFiberInstrumentation$1.debugTool) {
-      ReactFiberInstrumentation$1.debugTool.onBeginWork(workInProgress);
-    }
+var ReactFiberReconciler$2 = Object.freeze({
+	default: ReactFiberReconciler$1
+});
 
-    if (next === null) {
-      // If this doesn't spawn new work, complete the current work.
-      next = completeUnitOfWork(workInProgress);
-    }
+var ReactFiberReconciler$3 = ( ReactFiberReconciler$2 && ReactFiberReconciler$1 ) || ReactFiberReconciler$2;
 
-    ReactCurrentOwner$1.current = null;
-    {
-      ReactDebugCurrentFiber$3.resetCurrentFiber();
-    }
+// TODO: bundle Flow types with the package.
 
-    return next;
-  }
 
-  function performFailedUnitOfWork(workInProgress) {
-    // The current, flushed, state of this fiber is the alternate.
-    // Ideally nothing should rely on this, but relying on it here
-    // means that we don't need an additional field on the work in
-    // progress.
-    var current = workInProgress.alternate;
 
-    // See if beginning this work spawns more work.
-    {
-      startWorkTimer(workInProgress);
-    }
-    var next = beginFailedWork(current, workInProgress, nextPriorityLevel);
-    if (true && ReactFiberInstrumentation$1.debugTool) {
-      ReactFiberInstrumentation$1.debugTool.onBeginWork(workInProgress);
-    }
+// TODO: decide on the top-level export form.
+// This is hacky but makes it work with both Rollup and Jest.
+var reactReconciler = ReactFiberReconciler$3['default'] ? ReactFiberReconciler$3['default'] : ReactFiberReconciler$3;
 
-    if (next === null) {
-      // If this doesn't spawn new work, complete the current work.
-      next = completeUnitOfWork(workInProgress);
-    }
+function createPortal$1(children, containerInfo,
+// TODO: figure out the API for cross-renderer implementation.
+implementation) {
+  var key = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
 
-    ReactCurrentOwner$1.current = null;
-    {
-      ReactDebugCurrentFiber$3.resetCurrentFiber();
-    }
+  return {
+    // This tag allow us to uniquely identify this as a React Portal
+    $$typeof: REACT_PORTAL_TYPE,
+    key: key == null ? null : '' + key,
+    children: children,
+    containerInfo: containerInfo,
+    implementation: implementation
+  };
+}
 
-    return next;
-  }
+// TODO: this is special because it gets imported during build.
 
-  function performDeferredWork(deadline) {
-    performWork(OffscreenPriority, deadline);
-  }
+var ReactVersion = '16.2.0';
 
-  function handleCommitPhaseErrors() {
-    // This is a special work loop for handling commit phase errors. It's
-    // similar to the syncrhonous work loop, but does an additional check on
-    // each fiber to see if it's an error boundary with an unhandled error. If
-    // so, it uses a forked version of performUnitOfWork that unmounts the
-    // failed subtree.
-    //
-    // The loop stops once the children have unmounted and error lifecycles are
-    // called. Then we return to the regular flow.
+// a requestAnimationFrame, storing the time for the start of the frame, then
+// scheduling a postMessage which gets scheduled after paint. Within the
+// postMessage handler do as much work as possible until time + frame rate.
+// By separating the idle call into a separate event tick we ensure that
+// layout, paint and other browser work is counted against the available time.
+// The frame rate is dynamically adjusted.
 
-    if (capturedErrors !== null && capturedErrors.size > 0 && nextPriorityLevel === TaskPriority$1) {
-      while (nextUnitOfWork !== null) {
-        if (hasCapturedError(nextUnitOfWork)) {
-          // Use a forked version of performUnitOfWork
-          nextUnitOfWork = performFailedUnitOfWork(nextUnitOfWork);
-        } else {
-          nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
-        }
-        if (nextUnitOfWork === null) {
-          !(pendingCommit !== null) ? invariant(false, 'Should have a pending commit. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-          // We just completed a root. Commit it now.
-          priorityContext = TaskPriority$1;
-          commitAllWork(pendingCommit);
-          priorityContext = nextPriorityLevel;
-
-          if (capturedErrors === null || capturedErrors.size === 0 || nextPriorityLevel !== TaskPriority$1) {
-            // There are no more unhandled errors. We can exit this special
-            // work loop. If there's still additional work, we'll perform it
-            // using one of the normal work loops.
-            break;
-          }
-          // The commit phase produced additional errors. Continue working.
-        }
-      }
-    }
+{
+  if (ExecutionEnvironment.canUseDOM && typeof requestAnimationFrame !== 'function') {
+    warning(false, 'React depends on requestAnimationFrame. Make sure that you load a ' + 'polyfill in older browsers. http://fb.me/react-polyfills');
   }
+}
 
-  function workLoop(minPriorityLevel, deadline) {
-    if (pendingCommit !== null) {
-      priorityContext = TaskPriority$1;
-      commitAllWork(pendingCommit);
-      handleCommitPhaseErrors();
-    } else if (nextUnitOfWork === null) {
-      resetNextUnitOfWork();
-    }
+var hasNativePerformanceNow = typeof performance === 'object' && typeof performance.now === 'function';
 
-    if (nextPriorityLevel === NoWork$2 || nextPriorityLevel > minPriorityLevel) {
-      return;
-    }
+var now = void 0;
+if (hasNativePerformanceNow) {
+  now = function () {
+    return performance.now();
+  };
+} else {
+  now = function () {
+    return Date.now();
+  };
+}
 
-    // During the render phase, updates should have the same priority at which
-    // we're rendering.
-    priorityContext = nextPriorityLevel;
+// TODO: There's no way to cancel, because Fiber doesn't atm.
+var rIC = void 0;
+var cIC = void 0;
 
-    loop: do {
-      if (nextPriorityLevel <= TaskPriority$1) {
-        // Flush all synchronous and task work.
-        while (nextUnitOfWork !== null) {
-          nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
-          if (nextUnitOfWork === null) {
-            !(pendingCommit !== null) ? invariant(false, 'Should have a pending commit. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-            // We just completed a root. Commit it now.
-            priorityContext = TaskPriority$1;
-            commitAllWork(pendingCommit);
-            priorityContext = nextPriorityLevel;
-            // Clear any errors that were scheduled during the commit phase.
-            handleCommitPhaseErrors();
-            // The priority level may have changed. Check again.
-            if (nextPriorityLevel === NoWork$2 || nextPriorityLevel > minPriorityLevel || nextPriorityLevel > TaskPriority$1) {
-              // The priority level does not match.
-              break;
-            }
-          }
-        }
-      } else if (deadline !== null) {
-        // Flush asynchronous work until the deadline expires.
-        while (nextUnitOfWork !== null && !deadlineHasExpired) {
-          if (deadline.timeRemaining() > timeHeuristicForUnitOfWork) {
-            nextUnitOfWork = performUnitOfWork(nextUnitOfWork);
-            // In a deferred work batch, iff nextUnitOfWork returns null, we just
-            // completed a root and a pendingCommit exists. Logically, we could
-            // omit either of the checks in the following condition, but we need
-            // both to satisfy Flow.
-            if (nextUnitOfWork === null) {
-              !(pendingCommit !== null) ? invariant(false, 'Should have a pending commit. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-              // We just completed a root. If we have time, commit it now.
-              // Otherwise, we'll commit it in the next frame.
-              if (deadline.timeRemaining() > timeHeuristicForUnitOfWork) {
-                priorityContext = TaskPriority$1;
-                commitAllWork(pendingCommit);
-                priorityContext = nextPriorityLevel;
-                // Clear any errors that were scheduled during the commit phase.
-                handleCommitPhaseErrors();
-                // The priority level may have changed. Check again.
-                if (nextPriorityLevel === NoWork$2 || nextPriorityLevel > minPriorityLevel || nextPriorityLevel < HighPriority) {
-                  // The priority level does not match.
-                  break;
-                }
-              } else {
-                deadlineHasExpired = true;
-              }
-            }
-          } else {
-            deadlineHasExpired = true;
-          }
+if (!ExecutionEnvironment.canUseDOM) {
+  rIC = function (frameCallback) {
+    return setTimeout(function () {
+      frameCallback({
+        timeRemaining: function () {
+          return Infinity;
         }
-      }
+      });
+    });
+  };
+  cIC = function (timeoutID) {
+    clearTimeout(timeoutID);
+  };
+} else if (typeof requestIdleCallback !== 'function' || typeof cancelIdleCallback !== 'function') {
+  // Polyfill requestIdleCallback and cancelIdleCallback
 
-      // There might be work left. Depending on the priority, we should
-      // either perform it now or schedule a callback to perform it later.
-      switch (nextPriorityLevel) {
-        case SynchronousPriority$1:
-        case TaskPriority$1:
-          // We have remaining synchronous or task work. Keep performing it,
-          // regardless of whether we're inside a callback.
-          if (nextPriorityLevel <= minPriorityLevel) {
-            continue loop;
-          }
-          break loop;
-        case HighPriority:
-        case LowPriority:
-        case OffscreenPriority:
-          // We have remaining async work.
-          if (deadline === null) {
-            // We're not inside a callback. Exit and perform the work during
-            // the next callback.
-            break loop;
-          }
-          // We are inside a callback.
-          if (!deadlineHasExpired && nextPriorityLevel <= minPriorityLevel) {
-            // We still have time. Keep working.
-            continue loop;
-          }
-          // We've run out of time. Exit.
-          break loop;
-        case NoWork$2:
-          // No work left. We can exit.
-          break loop;
-        default:
-          invariant(false, 'Switch statement should be exhuastive. This error is likely caused by a bug in React. Please file an issue.');
-      }
-    } while (true);
-  }
+  var scheduledRICCallback = null;
+  var isIdleScheduled = false;
+  var timeoutTime = -1;
 
-  function performWorkCatchBlock(failedWork, boundary, minPriorityLevel, deadline) {
-    // We're going to restart the error boundary that captured the error.
-    // Conceptually, we're unwinding the stack. We need to unwind the
-    // context stack, too.
-    unwindContexts(failedWork, boundary);
+  var isAnimationFrameScheduled = false;
 
-    // Restart the error boundary using a forked version of
-    // performUnitOfWork that deletes the boundary's children. The entire
-    // failed subree will be unmounted. During the commit phase, a special
-    // lifecycle method is called on the error boundary, which triggers
-    // a re-render.
-    nextUnitOfWork = performFailedUnitOfWork(boundary);
+  var frameDeadline = 0;
+  // We start out assuming that we run at 30fps but then the heuristic tracking
+  // will adjust this value to a faster fps if we get more frequent animation
+  // frames.
+  var previousFrameTime = 33;
+  var activeFrameTime = 33;
 
-    // Continue working.
-    workLoop(minPriorityLevel, deadline);
+  var frameDeadlineObject;
+  if (hasNativePerformanceNow) {
+    frameDeadlineObject = {
+      didTimeout: false,
+      timeRemaining: function () {
+        // We assume that if we have a performance timer that the rAF callback
+        // gets a performance timer value. Not sure if this is always true.
+        var remaining = frameDeadline - performance.now();
+        return remaining > 0 ? remaining : 0;
+      }
+    };
+  } else {
+    frameDeadlineObject = {
+      didTimeout: false,
+      timeRemaining: function () {
+        // Fallback to Date.now()
+        var remaining = frameDeadline - Date.now();
+        return remaining > 0 ? remaining : 0;
+      }
+    };
   }
 
-  function performWork(minPriorityLevel, deadline) {
-    {
-      startWorkLoopTimer();
+  // We use the postMessage trick to defer idle work until after the repaint.
+  var messageKey = '__reactIdleCallback$' + Math.random().toString(36).slice(2);
+  var idleTick = function (event) {
+    if (event.source !== window || event.data !== messageKey) {
+      return;
     }
 
-    !!isPerformingWork ? invariant(false, 'performWork was called recursively. This error is likely caused by a bug in React. Please file an issue.') : void 0;
-    isPerformingWork = true;
-
-    // The priority context changes during the render phase. We'll need to
-    // reset it at the end.
-    var previousPriorityContext = priorityContext;
+    isIdleScheduled = false;
 
-    var didError = false;
-    var error = null;
-    {
-      invokeGuardedCallback$1(null, workLoop, null, minPriorityLevel, deadline);
-      if (hasCaughtError()) {
-        didError = true;
-        error = clearCaughtError();
+    var currentTime = now();
+    if (frameDeadline - currentTime <= 0) {
+      // There's no time left in this idle period. Check if the callback has
+      // a timeout and whether it's been exceeded.
+      if (timeoutTime !== -1 && timeoutTime <= currentTime) {
+        // Exceeded the timeout. Invoke the callback even though there's no
+        // time left.
+        frameDeadlineObject.didTimeout = true;
+      } else {
+        // No timeout.
+        if (!isAnimationFrameScheduled) {
+          // Schedule another animation callback so we retry later.
+          isAnimationFrameScheduled = true;
+          requestAnimationFrame(animationTick);
+        }
+        // Exit without invoking the callback.
+        return;
       }
+    } else {
+      // There's still time left in this idle period.
+      frameDeadlineObject.didTimeout = false;
     }
 
-    // An error was thrown during the render phase.
-    while (didError) {
-      if (didFatal) {
-        // This was a fatal error. Don't attempt to recover from it.
-        firstUncaughtError = error;
-        break;
-      }
+    timeoutTime = -1;
+    var callback = scheduledRICCallback;
+    scheduledRICCallback = null;
+    if (callback !== null) {
+      callback(frameDeadlineObject);
+    }
+  };
+  // Assumes that we have addEventListener in this environment. Might need
+  // something better for old IE.
+  window.addEventListener('message', idleTick, false);
 
-      var failedWork = nextUnitOfWork;
-      if (failedWork === null) {
-        // An error was thrown but there's no current unit of work. This can
-        // happen during the commit phase if there's a bug in the renderer.
-        didFatal = true;
-        continue;
+  var animationTick = function (rafTime) {
+    isAnimationFrameScheduled = false;
+    var nextFrameTime = rafTime - frameDeadline + activeFrameTime;
+    if (nextFrameTime < activeFrameTime && previousFrameTime < activeFrameTime) {
+      if (nextFrameTime < 8) {
+        // Defensive coding. We don't support higher frame rates than 120hz.
+        // If we get lower than that, it is probably a bug.
+        nextFrameTime = 8;
       }
+      // If one frame goes long, then the next one can be short to catch up.
+      // If two frames are short in a row, then that's an indication that we
+      // actually have a higher frame rate than what we're currently optimizing.
+      // We adjust our heuristic dynamically accordingly. For example, if we're
+      // running on 120hz display or 90hz VR display.
+      // Take the max of the two in case one of them was an anomaly due to
+      // missed frame deadlines.
+      activeFrameTime = nextFrameTime < previousFrameTime ? previousFrameTime : nextFrameTime;
+    } else {
+      previousFrameTime = nextFrameTime;
+    }
+    frameDeadline = rafTime + activeFrameTime;
+    if (!isIdleScheduled) {
+      isIdleScheduled = true;
+      window.postMessage(messageKey, '*');
+    }
+  };
 
-      // "Capture" the error by finding the nearest boundary. If there is no
-      // error boundary, we use the root.
-      var boundary = captureError(failedWork, error);
-      !(boundary !== null) ? invariant(false, 'Should have found an error boundary. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+  rIC = function (callback, options) {
+    // This assumes that we only schedule one callback at a time because that's
+    // how Fiber uses it.
+    scheduledRICCallback = callback;
+    if (options != null && typeof options.timeout === 'number') {
+      timeoutTime = now() + options.timeout;
+    }
+    if (!isAnimationFrameScheduled) {
+      // If rAF didn't already schedule one, we need to schedule a frame.
+      // TODO: If this rAF doesn't materialize because the browser throttles, we
+      // might want to still have setTimeout trigger rIC as a backup to ensure
+      // that we keep performing work.
+      isAnimationFrameScheduled = true;
+      requestAnimationFrame(animationTick);
+    }
+    return 0;
+  };
 
-      if (didFatal) {
-        // The error we just captured was a fatal error. This happens
-        // when the error propagates to the root more than once.
-        continue;
-      }
+  cIC = function () {
+    scheduledRICCallback = null;
+    isIdleScheduled = false;
+    timeoutTime = -1;
+  };
+} else {
+  rIC = window.requestIdleCallback;
+  cIC = window.cancelIdleCallback;
+}
 
-      didError = false;
-      error = null;
-      {
-        invokeGuardedCallback$1(null, performWorkCatchBlock, null, failedWork, boundary, minPriorityLevel, deadline);
-        if (hasCaughtError()) {
-          didError = true;
-          error = clearCaughtError();
-          continue;
-        }
-      }
-      // We're finished working. Exit the error loop.
-      break;
-    }
+/**
+ * Forked from fbjs/warning:
+ * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
+ *
+ * Only change is we use console.warn instead of console.error,
+ * and do nothing when 'console' is not supported.
+ * This really simplifies the code.
+ * ---
+ * Similar to invariant but only logs a warning if the condition is not met.
+ * This can be used to log issues in development environments in critical
+ * paths. Removing the logging code for production environments will keep the
+ * same logic and follow the same code paths.
+ */
 
-    // Reset the priority context to its previous value.
-    priorityContext = previousPriorityContext;
+var lowPriorityWarning = function () {};
 
-    // If we're inside a callback, set this to false, since we just flushed it.
-    if (deadline !== null) {
-      isCallbackScheduled = false;
-    }
-    // If there's remaining async work, make sure we schedule another callback.
-    if (nextPriorityLevel > TaskPriority$1 && !isCallbackScheduled) {
-      scheduleDeferredCallback(performDeferredWork);
-      isCallbackScheduled = true;
+{
+  var printWarning = function (format) {
+    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+      args[_key - 1] = arguments[_key];
     }
 
-    var errorToThrow = firstUncaughtError;
-
-    // We're done performing work. Time to clean up.
-    isPerformingWork = false;
-    deadlineHasExpired = false;
-    didFatal = false;
-    firstUncaughtError = null;
-    capturedErrors = null;
-    failedBoundaries = null;
-    nextRenderedTree = null;
-    nestedUpdateCount = 0;
+    var argIndex = 0;
+    var message = 'Warning: ' + format.replace(/%s/g, function () {
+      return args[argIndex++];
+    });
+    if (typeof console !== 'undefined') {
+      console.warn(message);
+    }
+    try {
+      // --- Welcome to debugging React ---
+      // This error was thrown as a convenience so that you can use this stack
+      // to find the callsite that caused this warning to fire.
+      throw new Error(message);
+    } catch (x) {}
+  };
 
-    {
-      stopWorkLoopTimer();
+  lowPriorityWarning = function (condition, format) {
+    if (format === undefined) {
+      throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument');
     }
+    if (!condition) {
+      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
+        args[_key2 - 2] = arguments[_key2];
+      }
 
-    // It's safe to throw any unhandled errors.
-    if (errorToThrow !== null) {
-      throw errorToThrow;
+      printWarning.apply(undefined, [format].concat(args));
     }
+  };
+}
+
+var lowPriorityWarning$1 = lowPriorityWarning;
+
+// isAttributeNameSafe() is currently duplicated in DOMMarkupOperations.
+// TODO: Find a better place for this.
+var VALID_ATTRIBUTE_NAME_REGEX = new RegExp('^[' + ATTRIBUTE_NAME_START_CHAR + '][' + ATTRIBUTE_NAME_CHAR + ']*$');
+var illegalAttributeNameCache = {};
+var validatedAttributeNameCache = {};
+function isAttributeNameSafe(attributeName) {
+  if (validatedAttributeNameCache.hasOwnProperty(attributeName)) {
+    return true;
+  }
+  if (illegalAttributeNameCache.hasOwnProperty(attributeName)) {
+    return false;
+  }
+  if (VALID_ATTRIBUTE_NAME_REGEX.test(attributeName)) {
+    validatedAttributeNameCache[attributeName] = true;
+    return true;
+  }
+  illegalAttributeNameCache[attributeName] = true;
+  {
+    warning(false, 'Invalid attribute name: `%s`', attributeName);
   }
+  return false;
+}
 
-  // Returns the boundary that captured the error, or null if the error is ignored
-  function captureError(failedWork, error) {
-    // It is no longer valid because we exited the user code.
-    ReactCurrentOwner$1.current = null;
-    {
-      ReactDebugCurrentFiber$3.resetCurrentFiber();
-    }
+// shouldIgnoreValue() is currently duplicated in DOMMarkupOperations.
+// TODO: Find a better place for this.
+function shouldIgnoreValue(propertyInfo, value) {
+  return value == null || propertyInfo.hasBooleanValue && !value || propertyInfo.hasNumericValue && isNaN(value) || propertyInfo.hasPositiveNumericValue && value < 1 || propertyInfo.hasOverloadedBooleanValue && value === false;
+}
 
-    // Search for the nearest error boundary.
-    var boundary = null;
+/**
+ * Operations for dealing with DOM properties.
+ */
 
-    // Passed to logCapturedError()
-    var errorBoundaryFound = false;
-    var willRetry = false;
-    var errorBoundaryName = null;
 
-    // Host containers are a special case. If the failed work itself is a host
-    // container, then it acts as its own boundary. In all other cases, we
-    // ignore the work itself and only search through the parents.
-    if (failedWork.tag === HostRoot$6) {
-      boundary = failedWork;
 
-      if (isFailedBoundary(failedWork)) {
-        // If this root already failed, there must have been an error when
-        // attempting to unmount it. This is a worst-case scenario and
-        // should only be possible if there's a bug in the renderer.
-        didFatal = true;
-      }
-    } else {
-      var node = failedWork['return'];
-      while (node !== null && boundary === null) {
-        if (node.tag === ClassComponent$5) {
-          var instance = node.stateNode;
-          if (typeof instance.componentDidCatch === 'function') {
-            errorBoundaryFound = true;
-            errorBoundaryName = getComponentName_1(node);
 
-            // Found an error boundary!
-            boundary = node;
-            willRetry = true;
-          }
-        } else if (node.tag === HostRoot$6) {
-          // Treat the root like a no-op error boundary
-          boundary = node;
-        }
 
-        if (isFailedBoundary(node)) {
-          // This boundary is already in a failed state.
+/**
+ * Get the value for a property on a node. Only used in DEV for SSR validation.
+ * The "expected" argument is used as a hint of what the expected value is.
+ * Some properties have multiple equivalent values.
+ */
+function getValueForProperty(node, name, expected) {
+  {
+    var propertyInfo = getPropertyInfo(name);
+    if (propertyInfo) {
+      var mutationMethod = propertyInfo.mutationMethod;
+      if (mutationMethod || propertyInfo.mustUseProperty) {
+        return node[propertyInfo.propertyName];
+      } else {
+        var attributeName = propertyInfo.attributeName;
 
-          // If we're currently unmounting, that means this error was
-          // thrown while unmounting a failed subtree. We should ignore
-          // the error.
-          if (isUnmounting) {
-            return null;
-          }
+        var stringValue = null;
 
-          // If we're in the commit phase, we should check to see if
-          // this boundary already captured an error during this commit.
-          // This case exists because multiple errors can be thrown during
-          // a single commit without interruption.
-          if (commitPhaseBoundaries !== null && (commitPhaseBoundaries.has(node) || node.alternate !== null && commitPhaseBoundaries.has(node.alternate))) {
-            // If so, we should ignore this error.
-            return null;
+        if (propertyInfo.hasOverloadedBooleanValue) {
+          if (node.hasAttribute(attributeName)) {
+            var value = node.getAttribute(attributeName);
+            if (value === '') {
+              return true;
+            }
+            if (shouldIgnoreValue(propertyInfo, expected)) {
+              return value;
+            }
+            if (value === '' + expected) {
+              return expected;
+            }
+            return value;
           }
-
-          // The error should propagate to the next boundary -— we keep looking.
-          boundary = null;
-          willRetry = false;
+        } else if (node.hasAttribute(attributeName)) {
+          if (shouldIgnoreValue(propertyInfo, expected)) {
+            // We had an attribute but shouldn't have had one, so read it
+            // for the error message.
+            return node.getAttribute(attributeName);
+          }
+          if (propertyInfo.hasBooleanValue) {
+            // If this was a boolean, it doesn't matter what the value is
+            // the fact that we have it is the same as the expected.
+            return expected;
+          }
+          // Even if this property uses a namespace we use getAttribute
+          // because we assume its namespaced name is the same as our config.
+          // To use getAttributeNS we need the local name which we don't have
+          // in our config atm.
+          stringValue = node.getAttribute(attributeName);
         }
 
-        node = node['return'];
+        if (shouldIgnoreValue(propertyInfo, expected)) {
+          return stringValue === null ? expected : stringValue;
+        } else if (stringValue === '' + expected) {
+          return expected;
+        } else {
+          return stringValue;
+        }
       }
     }
+  }
+}
 
-    if (boundary !== null) {
-      // Add to the collection of failed boundaries. This lets us know that
-      // subsequent errors in this subtree should propagate to the next boundary.
-      if (failedBoundaries === null) {
-        failedBoundaries = new Set();
-      }
-      failedBoundaries.add(boundary);
-
-      // This method is unsafe outside of the begin and complete phases.
-      // We might be in the commit phase when an error is captured.
-      // The risk is that the return path from this Fiber may not be accurate.
-      // That risk is acceptable given the benefit of providing users more context.
-      var _componentStack = getStackAddendumByWorkInProgressFiber$2(failedWork);
-      var _componentName = getComponentName_1(failedWork);
+/**
+ * Get the value for a attribute on a node. Only used in DEV for SSR validation.
+ * The third argument is used as a hint of what the expected value is. Some
+ * attributes have multiple equivalent values.
+ */
+function getValueForAttribute(node, name, expected) {
+  {
+    if (!isAttributeNameSafe(name)) {
+      return;
+    }
+    if (!node.hasAttribute(name)) {
+      return expected === undefined ? undefined : null;
+    }
+    var value = node.getAttribute(name);
+    if (value === '' + expected) {
+      return expected;
+    }
+    return value;
+  }
+}
 
-      // Add to the collection of captured errors. This is stored as a global
-      // map of errors and their component stack location keyed by the boundaries
-      // that capture them. We mostly use this Map as a Set; it's a Map only to
-      // avoid adding a field to Fiber to store the error.
-      if (capturedErrors === null) {
-        capturedErrors = new Map();
+/**
+ * Sets the value for a property on a node.
+ *
+ * @param {DOMElement} node
+ * @param {string} name
+ * @param {*} value
+ */
+function setValueForProperty(node, name, value) {
+  var propertyInfo = getPropertyInfo(name);
+
+  if (propertyInfo && shouldSetAttribute(name, value)) {
+    var mutationMethod = propertyInfo.mutationMethod;
+    if (mutationMethod) {
+      mutationMethod(node, value);
+    } else if (shouldIgnoreValue(propertyInfo, value)) {
+      deleteValueForProperty(node, name);
+      return;
+    } else if (propertyInfo.mustUseProperty) {
+      // Contrary to `setAttribute`, object properties are properly
+      // `toString`ed by IE8/9.
+      node[propertyInfo.propertyName] = value;
+    } else {
+      var attributeName = propertyInfo.attributeName;
+      var namespace = propertyInfo.attributeNamespace;
+      // `setAttribute` with objects becomes only `[object]` in IE8/9,
+      // ('' + value) makes it output the correct toString()-value.
+      if (namespace) {
+        node.setAttributeNS(namespace, attributeName, '' + value);
+      } else if (propertyInfo.hasBooleanValue || propertyInfo.hasOverloadedBooleanValue && value === true) {
+        node.setAttribute(attributeName, '');
+      } else {
+        node.setAttribute(attributeName, '' + value);
       }
+    }
+  } else {
+    setValueForAttribute(node, name, shouldSetAttribute(name, value) ? value : null);
+    return;
+  }
 
-      var capturedError = {
-        componentName: _componentName,
-        componentStack: _componentStack,
-        error: error,
-        errorBoundary: errorBoundaryFound ? boundary.stateNode : null,
-        errorBoundaryFound: errorBoundaryFound,
-        errorBoundaryName: errorBoundaryName,
-        willRetry: willRetry
-      };
+  {
+    
+  }
+}
 
-      capturedErrors.set(boundary, capturedError);
+function setValueForAttribute(node, name, value) {
+  if (!isAttributeNameSafe(name)) {
+    return;
+  }
+  if (value == null) {
+    node.removeAttribute(name);
+  } else {
+    node.setAttribute(name, '' + value);
+  }
 
-      try {
-        logCapturedError(capturedError);
-      } catch (e) {
-        // Prevent cycle if logCapturedError() throws.
-        // A cycle may still occur if logCapturedError renders a component that throws.
-        console.error(e);
-      }
+  {
+    
+  }
+}
 
-      // If we're in the commit phase, defer scheduling an update on the
-      // boundary until after the commit is complete
-      if (isCommitting) {
-        if (commitPhaseBoundaries === null) {
-          commitPhaseBoundaries = new Set();
-        }
-        commitPhaseBoundaries.add(boundary);
+/**
+ * Deletes an attributes from a node.
+ *
+ * @param {DOMElement} node
+ * @param {string} name
+ */
+function deleteValueForAttribute(node, name) {
+  node.removeAttribute(name);
+}
+
+/**
+ * Deletes the value for a property on a node.
+ *
+ * @param {DOMElement} node
+ * @param {string} name
+ */
+function deleteValueForProperty(node, name) {
+  var propertyInfo = getPropertyInfo(name);
+  if (propertyInfo) {
+    var mutationMethod = propertyInfo.mutationMethod;
+    if (mutationMethod) {
+      mutationMethod(node, undefined);
+    } else if (propertyInfo.mustUseProperty) {
+      var propName = propertyInfo.propertyName;
+      if (propertyInfo.hasBooleanValue) {
+        node[propName] = false;
       } else {
-        // Otherwise, schedule an update now.
-        // TODO: Is this actually necessary during the render phase? Is it
-        // possible to unwind and continue rendering at the same priority,
-        // without corrupting internal state?
-        scheduleErrorRecovery(boundary);
+        node[propName] = '';
       }
-      return boundary;
-    } else if (firstUncaughtError === null) {
-      // If no boundary is found, we'll need to throw the error
-      firstUncaughtError = error;
+    } else {
+      node.removeAttribute(propertyInfo.attributeName);
     }
-    return null;
+  } else {
+    node.removeAttribute(name);
   }
+}
 
-  function hasCapturedError(fiber) {
-    // TODO: capturedErrors should store the boundary instance, to avoid needing
-    // to check the alternate.
-    return capturedErrors !== null && (capturedErrors.has(fiber) || fiber.alternate !== null && capturedErrors.has(fiber.alternate));
-  }
+var ReactControlledValuePropTypes = {
+  checkPropTypes: null
+};
 
-  function isFailedBoundary(fiber) {
-    // TODO: failedBoundaries should store the boundary instance, to avoid
-    // needing to check the alternate.
-    return failedBoundaries !== null && (failedBoundaries.has(fiber) || fiber.alternate !== null && failedBoundaries.has(fiber.alternate));
-  }
+{
+  var hasReadOnlyValue = {
+    button: true,
+    checkbox: true,
+    image: true,
+    hidden: true,
+    radio: true,
+    reset: true,
+    submit: true
+  };
 
-  function commitErrorHandling(effectfulFiber) {
-    var capturedError = void 0;
-    if (capturedErrors !== null) {
-      capturedError = capturedErrors.get(effectfulFiber);
-      capturedErrors['delete'](effectfulFiber);
-      if (capturedError == null) {
-        if (effectfulFiber.alternate !== null) {
-          effectfulFiber = effectfulFiber.alternate;
-          capturedError = capturedErrors.get(effectfulFiber);
-          capturedErrors['delete'](effectfulFiber);
-        }
+  var propTypes = {
+    value: function (props, propName, componentName) {
+      if (!props[propName] || hasReadOnlyValue[props.type] || props.onChange || props.readOnly || props.disabled) {
+        return null;
       }
+      return new Error('You provided a `value` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultValue`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
+    },
+    checked: function (props, propName, componentName) {
+      if (!props[propName] || props.onChange || props.readOnly || props.disabled) {
+        return null;
+      }
+      return new Error('You provided a `checked` prop to a form field without an ' + '`onChange` handler. This will render a read-only field. If ' + 'the field should be mutable use `defaultChecked`. Otherwise, ' + 'set either `onChange` or `readOnly`.');
     }
+  };
 
-    !(capturedError != null) ? invariant(false, 'No error for given unit of work. This error is likely caused by a bug in React. Please file an issue.') : void 0;
+  /**
+   * Provide a linked `value` attribute for controlled forms. You should not use
+   * this outside of the ReactDOM controlled form components.
+   */
+  ReactControlledValuePropTypes.checkPropTypes = function (tagName, props, getStack) {
+    checkPropTypes(propTypes, props, 'prop', tagName, getStack);
+  };
+}
 
-    switch (effectfulFiber.tag) {
-      case ClassComponent$5:
-        var instance = effectfulFiber.stateNode;
+// TODO: direct imports like some-package/src/* are bad. Fix me.
+var getCurrentFiberOwnerName$2 = ReactDebugCurrentFiber.getCurrentFiberOwnerName;
+var getCurrentFiberStackAddendum$3 = ReactDebugCurrentFiber.getCurrentFiberStackAddendum;
 
-        var info = {
-          componentStack: capturedError.componentStack
-        };
+var didWarnValueDefaultValue = false;
+var didWarnCheckedDefaultChecked = false;
+var didWarnControlledToUncontrolled = false;
+var didWarnUncontrolledToControlled = false;
 
-        // Allow the boundary to handle the error, usually by scheduling
-        // an update to itself
-        instance.componentDidCatch(capturedError.error, info);
-        return;
-      case HostRoot$6:
-        if (firstUncaughtError === null) {
-          // If this is the host container, we treat it as a no-op error
-          // boundary. We'll throw the first uncaught error once it's safe to
-          // do so, at the end of the batch.
-          firstUncaughtError = capturedError.error;
-        }
-        return;
-      default:
-        invariant(false, 'Invalid type of work. This error is likely caused by a bug in React. Please file an issue.');
-    }
-  }
+function isControlled(props) {
+  var usesChecked = props.type === 'checkbox' || props.type === 'radio';
+  return usesChecked ? props.checked != null : props.value != null;
+}
 
-  function unwindContexts(from, to) {
-    var node = from;
-    while (node !== null) {
-      switch (node.tag) {
-        case ClassComponent$5:
-          popContextProvider$1(node);
-          break;
-        case HostComponent$6:
-          popHostContext(node);
-          break;
-        case HostRoot$6:
-          popHostContainer(node);
-          break;
-        case HostPortal$3:
-          popHostContainer(node);
-          break;
-      }
-      if (node === to || node.alternate === to) {
-        {
-          stopFailedWorkTimer(node);
-        }
-        break;
-      } else {
-        stopWorkTimer(node);
-      }
-      node = node['return'];
-    }
-  }
+/**
+ * Implements an <input> host component that allows setting these optional
+ * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.
+ *
+ * If `checked` or `value` are not supplied (or null/undefined), user actions
+ * that affect the checked state or value will trigger updates to the element.
+ *
+ * If they are supplied (and not null/undefined), the rendered element will not
+ * trigger updates to the element. Instead, the props must change in order for
+ * the rendered element to be updated.
+ *
+ * The rendered element will be initialized as unchecked (or `defaultChecked`)
+ * with an empty value (or `defaultValue`).
+ *
+ * See http://www.w3.org/TR/2012/WD-html5-20121025/the-input-element.html
+ */
 
-  function scheduleRoot(root, priorityLevel) {
-    if (priorityLevel === NoWork$2) {
-      return;
-    }
+function getHostProps(element, props) {
+  var node = element;
+  var value = props.value;
+  var checked = props.checked;
+
+  var hostProps = _assign({
+    // Make sure we set .type before any other properties (setting .value
+    // before .type means .value is lost in IE11 and below)
+    type: undefined,
+    // Make sure we set .step before .value (setting .value before .step
+    // means .value is rounded on mount, based upon step precision)
+    step: undefined,
+    // Make sure we set .min & .max before .value (to ensure proper order
+    // in corner cases such as min or max deriving from value, e.g. Issue #7170)
+    min: undefined,
+    max: undefined
+  }, props, {
+    defaultChecked: undefined,
+    defaultValue: undefined,
+    value: value != null ? value : node._wrapperState.initialValue,
+    checked: checked != null ? checked : node._wrapperState.initialChecked
+  });
 
-    if (!root.isScheduled) {
-      root.isScheduled = true;
-      if (lastScheduledRoot) {
-        // Schedule ourselves to the end.
-        lastScheduledRoot.nextScheduledRoot = root;
-        lastScheduledRoot = root;
-      } else {
-        // We're the only work scheduled.
-        nextScheduledRoot = root;
-        lastScheduledRoot = root;
-      }
+  return hostProps;
+}
+
+function initWrapperState(element, props) {
+  {
+    ReactControlledValuePropTypes.checkPropTypes('input', props, getCurrentFiberStackAddendum$3);
+
+    if (props.checked !== undefined && props.defaultChecked !== undefined && !didWarnCheckedDefaultChecked) {
+      warning(false, '%s contains an input of type %s with both checked and defaultChecked props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the checked prop, or the defaultChecked prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerName$2() || 'A component', props.type);
+      didWarnCheckedDefaultChecked = true;
+    }
+    if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue) {
+      warning(false, '%s contains an input of type %s with both value and defaultValue props. ' + 'Input elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled input ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components', getCurrentFiberOwnerName$2() || 'A component', props.type);
+      didWarnValueDefaultValue = true;
     }
   }
 
-  function scheduleUpdate(fiber, priorityLevel) {
-    return scheduleUpdateImpl(fiber, priorityLevel, false);
+  var defaultValue = props.defaultValue;
+  var node = element;
+  node._wrapperState = {
+    initialChecked: props.checked != null ? props.checked : props.defaultChecked,
+    initialValue: props.value != null ? props.value : defaultValue,
+    controlled: isControlled(props)
+  };
+}
+
+function updateChecked(element, props) {
+  var node = element;
+  var checked = props.checked;
+  if (checked != null) {
+    setValueForProperty(node, 'checked', checked);
   }
+}
 
-  function scheduleUpdateImpl(fiber, priorityLevel, isErrorRecovery) {
-    {
-      recordScheduleUpdate();
-    }
+function updateWrapper(element, props) {
+  var node = element;
+  {
+    var controlled = isControlled(props);
 
-    if (nestedUpdateCount > NESTED_UPDATE_LIMIT) {
-      didFatal = true;
-      invariant(false, 'Maximum update depth exceeded. This can happen when a component repeatedly calls setState inside componentWillUpdate or componentDidUpdate. React limits the number of nested updates to prevent infinite loops.');
+    if (!node._wrapperState.controlled && controlled && !didWarnUncontrolledToControlled) {
+      warning(false, 'A component is changing an uncontrolled input of type %s to be controlled. ' + 'Input elements should not switch from uncontrolled to controlled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components%s', props.type, getCurrentFiberStackAddendum$3());
+      didWarnUncontrolledToControlled = true;
     }
-
-    if (!isPerformingWork && priorityLevel <= nextPriorityLevel) {
-      // We must reset the current unit of work pointer so that we restart the
-      // search from the root during the next tick, in case there is now higher
-      // priority work somewhere earlier than before.
-      nextUnitOfWork = null;
+    if (node._wrapperState.controlled && !controlled && !didWarnControlledToUncontrolled) {
+      warning(false, 'A component is changing a controlled input of type %s to be uncontrolled. ' + 'Input elements should not switch from controlled to uncontrolled (or vice versa). ' + 'Decide between using a controlled or uncontrolled input ' + 'element for the lifetime of the component. More info: https://fb.me/react-controlled-components%s', props.type, getCurrentFiberStackAddendum$3());
+      didWarnControlledToUncontrolled = true;
     }
+  }
 
-    {
-      if (!isErrorRecovery && fiber.tag === ClassComponent$5) {
-        var instance = fiber.stateNode;
-        warnAboutInvalidUpdates(instance);
-      }
-    }
+  updateChecked(element, props);
 
-    var node = fiber;
-    var shouldContinue = true;
-    while (node !== null && shouldContinue) {
-      // Walk the parent path to the root and update each node's priority. Once
-      // we reach a node whose priority matches (and whose alternate's priority
-      // matches) we can exit safely knowing that the rest of the path is correct.
-      shouldContinue = false;
-      if (node.pendingWorkPriority === NoWork$2 || node.pendingWorkPriority > priorityLevel) {
-        // Priority did not match. Update and keep going.
-        shouldContinue = true;
-        node.pendingWorkPriority = priorityLevel;
-      }
-      if (node.alternate !== null) {
-        if (node.alternate.pendingWorkPriority === NoWork$2 || node.alternate.pendingWorkPriority > priorityLevel) {
-          // Priority did not match. Update and keep going.
-          shouldContinue = true;
-          node.alternate.pendingWorkPriority = priorityLevel;
-        }
-      }
-      if (node['return'] === null) {
-        if (node.tag === HostRoot$6) {
-          var root = node.stateNode;
-          scheduleRoot(root, priorityLevel);
-          if (!isPerformingWork) {
-            switch (priorityLevel) {
-              case SynchronousPriority$1:
-                // Perform this update now.
-                if (isUnbatchingUpdates) {
-                  // We're inside unbatchedUpdates, which is inside either
-                  // batchedUpdates or a lifecycle. We should only flush
-                  // synchronous work, not task work.
-                  performWork(SynchronousPriority$1, null);
-                } else {
-                  // Flush both synchronous and task work.
-                  performWork(TaskPriority$1, null);
-                }
-                break;
-              case TaskPriority$1:
-                !isBatchingUpdates ? invariant(false, 'Task updates can only be scheduled as a nested update or inside batchedUpdates.') : void 0;
-                break;
-              default:
-                // Schedule a callback to perform the work later.
-                if (!isCallbackScheduled) {
-                  scheduleDeferredCallback(performDeferredWork);
-                  isCallbackScheduled = true;
-                }
-            }
-          }
-        } else {
-          {
-            if (!isErrorRecovery && fiber.tag === ClassComponent$5) {
-              warnAboutUpdateOnUnmounted(fiber.stateNode);
-            }
-          }
-          return;
-        }
+  var value = props.value;
+  if (value != null) {
+    if (value === 0 && node.value === '') {
+      node.value = '0';
+      // Note: IE9 reports a number inputs as 'text', so check props instead.
+    } else if (props.type === 'number') {
+      // Simulate `input.valueAsNumber`. IE9 does not support it
+      var valueAsNumber = parseFloat(node.value) || 0;
+
+      if (
+      // eslint-disable-next-line
+      value != valueAsNumber ||
+      // eslint-disable-next-line
+      value == valueAsNumber && node.value != value) {
+        // Cast `value` to a string to ensure the value is set correctly. While
+        // browsers typically do this as necessary, jsdom doesn't.
+        node.value = '' + value;
       }
-      node = node['return'];
+    } else if (node.value !== '' + value) {
+      // Cast `value` to a string to ensure the value is set correctly. While
+      // browsers typically do this as necessary, jsdom doesn't.
+      node.value = '' + value;
     }
-  }
-
-  function getPriorityContext(fiber, forceAsync) {
-    var priorityLevel = priorityContext;
-    if (priorityLevel === NoWork$2) {
-      if (!useSyncScheduling || fiber.internalContextTag & AsyncUpdates || forceAsync) {
-        priorityLevel = LowPriority;
-      } else {
-        priorityLevel = SynchronousPriority$1;
+  } else {
+    if (props.value == null && props.defaultValue != null) {
+      // In Chrome, assigning defaultValue to certain input types triggers input validation.
+      // For number inputs, the display value loses trailing decimal points. For email inputs,
+      // Chrome raises "The specified value <x> is not a valid email address".
+      //
+      // Here we check to see if the defaultValue has actually changed, avoiding these problems
+      // when the user is inputting text
+      //
+      // https://github.com/facebook/react/issues/7253
+      if (node.defaultValue !== '' + props.defaultValue) {
+        node.defaultValue = '' + props.defaultValue;
       }
     }
-
-    // If we're in a batch, or if we're already performing work, downgrade sync
-    // priority to task priority
-    if (priorityLevel === SynchronousPriority$1 && (isPerformingWork || isBatchingUpdates)) {
-      return TaskPriority$1;
+    if (props.checked == null && props.defaultChecked != null) {
+      node.defaultChecked = !!props.defaultChecked;
     }
-    return priorityLevel;
   }
+}
 
-  function scheduleErrorRecovery(fiber) {
-    scheduleUpdateImpl(fiber, TaskPriority$1, true);
-  }
+function postMountWrapper(element, props) {
+  var node = element;
 
-  function batchedUpdates(fn, a) {
-    var previousIsBatchingUpdates = isBatchingUpdates;
-    isBatchingUpdates = true;
-    try {
-      return fn(a);
-    } finally {
-      isBatchingUpdates = previousIsBatchingUpdates;
-      // If we're not already inside a batch, we need to flush any task work
-      // that was created by the user-provided function.
-      if (!isPerformingWork && !isBatchingUpdates) {
-        performWork(TaskPriority$1, null);
-      }
-    }
+  // Detach value from defaultValue. We won't do anything if we're working on
+  // submit or reset inputs as those values & defaultValues are linked. They
+  // are not resetable nodes so this operation doesn't matter and actually
+  // removes browser-default values (eg "Submit Query") when no value is
+  // provided.
+
+  switch (props.type) {
+    case 'submit':
+    case 'reset':
+      break;
+    case 'color':
+    case 'date':
+    case 'datetime':
+    case 'datetime-local':
+    case 'month':
+    case 'time':
+    case 'week':
+      // This fixes the no-show issue on iOS Safari and Android Chrome:
+      // https://github.com/facebook/react/issues/7233
+      node.value = '';
+      node.value = node.defaultValue;
+      break;
+    default:
+      node.value = node.value;
+      break;
   }
 
-  function unbatchedUpdates(fn) {
-    var previousIsUnbatchingUpdates = isUnbatchingUpdates;
-    var previousIsBatchingUpdates = isBatchingUpdates;
-    // This is only true if we're nested inside batchedUpdates.
-    isUnbatchingUpdates = isBatchingUpdates;
-    isBatchingUpdates = false;
-    try {
-      return fn();
-    } finally {
-      isBatchingUpdates = previousIsBatchingUpdates;
-      isUnbatchingUpdates = previousIsUnbatchingUpdates;
-    }
+  // Normally, we'd just do `node.checked = node.checked` upon initial mount, less this bug
+  // this is needed to work around a chrome bug where setting defaultChecked
+  // will sometimes influence the value of checked (even after detachment).
+  // Reference: https://bugs.chromium.org/p/chromium/issues/detail?id=608416
+  // We need to temporarily unset name to avoid disrupting radio button groups.
+  var name = node.name;
+  if (name !== '') {
+    node.name = '';
+  }
+  node.defaultChecked = !node.defaultChecked;
+  node.defaultChecked = !node.defaultChecked;
+  if (name !== '') {
+    node.name = name;
   }
+}
 
-  function flushSync(batch) {
-    var previousIsBatchingUpdates = isBatchingUpdates;
-    var previousPriorityContext = priorityContext;
-    isBatchingUpdates = true;
-    priorityContext = SynchronousPriority$1;
-    try {
-      return batch();
-    } finally {
-      isBatchingUpdates = previousIsBatchingUpdates;
-      priorityContext = previousPriorityContext;
+function restoreControlledState$1(element, props) {
+  var node = element;
+  updateWrapper(node, props);
+  updateNamedCousins(node, props);
+}
+
+function updateNamedCousins(rootNode, props) {
+  var name = props.name;
+  if (props.type === 'radio' && name != null) {
+    var queryRoot = rootNode;
 
-      !!isPerformingWork ? invariant(false, 'flushSync was called from inside a lifecycle method. It cannot be called when React is already rendering.') : void 0;
-      performWork(TaskPriority$1, null);
+    while (queryRoot.parentNode) {
+      queryRoot = queryRoot.parentNode;
     }
-  }
 
-  function deferredUpdates(fn) {
-    var previousPriorityContext = priorityContext;
-    priorityContext = LowPriority;
-    try {
-      return fn();
-    } finally {
-      priorityContext = previousPriorityContext;
-    }
-  }
-
-  return {
-    scheduleUpdate: scheduleUpdate,
-    getPriorityContext: getPriorityContext,
-    batchedUpdates: batchedUpdates,
-    unbatchedUpdates: unbatchedUpdates,
-    flushSync: flushSync,
-    deferredUpdates: deferredUpdates
-  };
-};
+    // If `rootNode.form` was non-null, then we could try `form.elements`,
+    // but that sometimes behaves strangely in IE8. We could also try using
+    // `form.getElementsByName`, but that will only return direct children
+    // and won't include inputs that use the HTML5 `form=` attribute. Since
+    // the input might not even be in a form. It might not even be in the
+    // document. Let's just use the local `querySelectorAll` to ensure we don't
+    // miss anything.
+    var group = queryRoot.querySelectorAll('input[name=' + JSON.stringify('' + name) + '][type="radio"]');
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule getContextForSubtree
- * 
- */
+    for (var i = 0; i < group.length; i++) {
+      var otherNode = group[i];
+      if (otherNode === rootNode || otherNode.form !== rootNode.form) {
+        continue;
+      }
+      // This will throw if radio buttons rendered by different copies of React
+      // and the same name are rendered into the same form (same as #1939).
+      // That's probably okay; we don't support it just as we don't support
+      // mixing React radio buttons with non-React ones.
+      var otherProps = getFiberCurrentPropsFromNode$1(otherNode);
+      !otherProps ? invariant(false, 'ReactDOMInput: Mixing React and non-React radio inputs with the same `name` is not supported.') : void 0;
 
+      // We need update the tracked value on the named cousin since the value
+      // was changed but the input saw no event or value set
+      updateValueIfChanged(otherNode);
 
+      // If this is a controlled radio button group, forcing the input that
+      // was previously checked to update will cause it to be come re-checked
+      // as appropriate.
+      updateWrapper(otherNode, otherProps);
+    }
+  }
+}
 
+function flattenChildren(children) {
+  var content = '';
 
+  // Flatten children and warn if they aren't strings or numbers;
+  // invalid types are ignored.
+  // We can silently skip them because invalid DOM nesting warning
+  // catches these cases in Fiber.
+  React.Children.forEach(children, function (child) {
+    if (child == null) {
+      return;
+    }
+    if (typeof child === 'string' || typeof child === 'number') {
+      content += child;
+    }
+  });
 
+  return content;
+}
 
-var getContextFiber = function (arg) {
-  invariant(false, 'Missing injection for fiber getContextForSubtree');
-};
+/**
+ * Implements an <option> host component that warns when `selected` is set.
+ */
 
-function getContextForSubtree(parentComponent) {
-  if (!parentComponent) {
-    return emptyObject;
+function validateProps(element, props) {
+  // TODO (yungsters): Remove support for `selected` in <option>.
+  {
+    warning(props.selected == null, 'Use the `defaultValue` or `value` props on <select> instead of ' + 'setting `selected` on <option>.');
   }
+}
 
-  var instance = ReactInstanceMap_1.get(parentComponent);
-  if (typeof instance.tag === 'number') {
-    return getContextFiber(instance);
-  } else {
-    return instance._processChildContext(instance._context);
+function postMountWrapper$1(element, props) {
+  // value="" should make a value attribute (#6219)
+  if (props.value != null) {
+    element.setAttribute('value', props.value);
   }
 }
 
-getContextForSubtree._injectFiber = function (fn) {
-  getContextFiber = fn;
-};
-
-var getContextForSubtree_1 = getContextForSubtree;
+function getHostProps$1(element, props) {
+  var hostProps = _assign({ children: undefined }, props);
+  var content = flattenChildren(props.children);
 
-var addTopLevelUpdate = ReactFiberUpdateQueue.addTopLevelUpdate;
-
-var findCurrentUnmaskedContext = ReactFiberContext.findCurrentUnmaskedContext;
-var isContextProvider = ReactFiberContext.isContextProvider;
-var processChildContext = ReactFiberContext.processChildContext;
-
-var createFiberRoot = ReactFiberRoot.createFiberRoot;
+  if (content) {
+    hostProps.children = content;
+  }
 
+  return hostProps;
+}
 
+// TODO: direct imports like some-package/src/* are bad. Fix me.
+var getCurrentFiberOwnerName$3 = ReactDebugCurrentFiber.getCurrentFiberOwnerName;
+var getCurrentFiberStackAddendum$4 = ReactDebugCurrentFiber.getCurrentFiberStackAddendum;
 
-var HostComponent$3 = ReactTypeOfWork.HostComponent;
 
 {
-  var warning$18 = require$$0;
-  var ReactFiberInstrumentation = ReactFiberInstrumentation_1;
-  var ReactDebugCurrentFiber$1 = ReactDebugCurrentFiber_1;
-  var getComponentName$4 = getComponentName_1;
+  var didWarnValueDefaultValue$1 = false;
 }
 
-var findCurrentHostFiber$1 = ReactFiberTreeReflection.findCurrentHostFiber;
-var findCurrentHostFiberWithNoPortals$1 = ReactFiberTreeReflection.findCurrentHostFiberWithNoPortals;
-
-
-
-getContextForSubtree_1._injectFiber(function (fiber) {
-  var parentContext = findCurrentUnmaskedContext(fiber);
-  return isContextProvider(fiber) ? processChildContext(fiber, parentContext, false) : parentContext;
-});
+function getDeclarationErrorAddendum() {
+  var ownerName = getCurrentFiberOwnerName$3();
+  if (ownerName) {
+    return '\n\nCheck the render method of `' + ownerName + '`.';
+  }
+  return '';
+}
 
-var ReactFiberReconciler = function (config) {
-  var getPublicInstance = config.getPublicInstance;
+var valuePropNames = ['value', 'defaultValue'];
 
-  var _ReactFiberScheduler = ReactFiberScheduler(config),
-      scheduleUpdate = _ReactFiberScheduler.scheduleUpdate,
-      getPriorityContext = _ReactFiberScheduler.getPriorityContext,
-      batchedUpdates = _ReactFiberScheduler.batchedUpdates,
-      unbatchedUpdates = _ReactFiberScheduler.unbatchedUpdates,
-      flushSync = _ReactFiberScheduler.flushSync,
-      deferredUpdates = _ReactFiberScheduler.deferredUpdates;
+/**
+ * Validation function for `value` and `defaultValue`.
+ */
+function checkSelectPropTypes(props) {
+  ReactControlledValuePropTypes.checkPropTypes('select', props, getCurrentFiberStackAddendum$4);
 
-  function scheduleTopLevelUpdate(current, element, callback) {
-    {
-      if (ReactDebugCurrentFiber$1.phase === 'render' && ReactDebugCurrentFiber$1.current !== null) {
-        warning$18(false, 'Render methods should be a pure function of props and state; ' + 'triggering nested component updates from render is not allowed. ' + 'If necessary, trigger nested updates in componentDidUpdate.\n\n' + 'Check the render method of %s.', getComponentName$4(ReactDebugCurrentFiber$1.current) || 'Unknown');
-      }
+  for (var i = 0; i < valuePropNames.length; i++) {
+    var propName = valuePropNames[i];
+    if (props[propName] == null) {
+      continue;
     }
-
-    // Check if the top-level element is an async wrapper component. If so, treat
-    // updates to the root as async. This is a bit weird but lets us avoid a separate
-    // `renderAsync` API.
-    var forceAsync = ReactFeatureFlags_1.enableAsyncSubtreeAPI && element != null && element.type != null && element.type.prototype != null && element.type.prototype.unstable_isAsyncReactComponent === true;
-    var priorityLevel = getPriorityContext(current, forceAsync);
-    var nextState = { element: element };
-    callback = callback === undefined ? null : callback;
-    {
-      warning$18(callback === null || typeof callback === 'function', 'render(...): Expected the last optional `callback` argument to be a ' + 'function. Instead received: %s.', callback);
+    var isArray = Array.isArray(props[propName]);
+    if (props.multiple && !isArray) {
+      warning(false, 'The `%s` prop supplied to <select> must be an array if ' + '`multiple` is true.%s', propName, getDeclarationErrorAddendum());
+    } else if (!props.multiple && isArray) {
+      warning(false, 'The `%s` prop supplied to <select> must be a scalar ' + 'value if `multiple` is false.%s', propName, getDeclarationErrorAddendum());
     }
-    addTopLevelUpdate(current, nextState, callback, priorityLevel);
-    scheduleUpdate(current, priorityLevel);
   }
+}
 
-  return {
-    createContainer: function (containerInfo) {
-      return createFiberRoot(containerInfo);
-    },
-    updateContainer: function (element, container, parentComponent, callback) {
-      // TODO: If this is a nested container, this won't be the root.
-      var current = container.current;
-
-      {
-        if (ReactFiberInstrumentation.debugTool) {
-          if (current.alternate === null) {
-            ReactFiberInstrumentation.debugTool.onMountContainer(container);
-          } else if (element === null) {
-            ReactFiberInstrumentation.debugTool.onUnmountContainer(container);
-          } else {
-            ReactFiberInstrumentation.debugTool.onUpdateContainer(container);
-          }
-        }
-      }
-
-      var context = getContextForSubtree_1(parentComponent);
-      if (container.context === null) {
-        container.context = context;
-      } else {
-        container.pendingContext = context;
-      }
-
-      scheduleTopLevelUpdate(current, element, callback);
-    },
-
-
-    batchedUpdates: batchedUpdates,
-
-    unbatchedUpdates: unbatchedUpdates,
-
-    deferredUpdates: deferredUpdates,
-
-    flushSync: flushSync,
+function updateOptions(node, multiple, propValue, setDefaultSelected) {
+  var options = node.options;
 
-    getPublicRootInstance: function (container) {
-      var containerFiber = container.current;
-      if (!containerFiber.child) {
-        return null;
+  if (multiple) {
+    var selectedValues = propValue;
+    var selectedValue = {};
+    for (var i = 0; i < selectedValues.length; i++) {
+      // Prefix to avoid chaos with special keys.
+      selectedValue['$' + selectedValues[i]] = true;
+    }
+    for (var _i = 0; _i < options.length; _i++) {
+      var selected = selectedValue.hasOwnProperty('$' + options[_i].value);
+      if (options[_i].selected !== selected) {
+        options[_i].selected = selected;
       }
-      switch (containerFiber.child.tag) {
-        case HostComponent$3:
-          return getPublicInstance(containerFiber.child.stateNode);
-        default:
-          return containerFiber.child.stateNode;
+      if (selected && setDefaultSelected) {
+        options[_i].defaultSelected = true;
       }
-    },
-    findHostInstance: function (fiber) {
-      var hostFiber = findCurrentHostFiber$1(fiber);
-      if (hostFiber === null) {
-        return null;
+    }
+  } else {
+    // Do not set `select.value` as exact behavior isn't consistent across all
+    // browsers for all cases.
+    var _selectedValue = '' + propValue;
+    var defaultSelected = null;
+    for (var _i2 = 0; _i2 < options.length; _i2++) {
+      if (options[_i2].value === _selectedValue) {
+        options[_i2].selected = true;
+        if (setDefaultSelected) {
+          options[_i2].defaultSelected = true;
+        }
+        return;
       }
-      return hostFiber.stateNode;
-    },
-    findHostInstanceWithNoPortals: function (fiber) {
-      var hostFiber = findCurrentHostFiberWithNoPortals$1(fiber);
-      if (hostFiber === null) {
-        return null;
+      if (defaultSelected === null && !options[_i2].disabled) {
+        defaultSelected = options[_i2];
       }
-      return hostFiber.stateNode;
     }
-  };
-};
-
-var TEXT_NODE$3 = HTMLNodeType_1.TEXT_NODE;
+    if (defaultSelected !== null) {
+      defaultSelected.selected = true;
+    }
+  }
+}
 
 /**
- * Given any node return the first leaf node without children.
+ * Implements a <select> host component that allows optionally setting the
+ * props `value` and `defaultValue`. If `multiple` is false, the prop must be a
+ * stringable. If `multiple` is true, the prop must be an array of stringables.
  *
- * @param {DOMElement|DOMTextNode} node
- * @return {DOMElement|DOMTextNode}
+ * If `value` is not supplied (or null/undefined), user actions that change the
+ * selected option will trigger updates to the rendered options.
+ *
+ * If it is supplied (and not null/undefined), the rendered options will not
+ * update in response to user actions. Instead, the `value` prop must change in
+ * order for the rendered options to update.
+ *
+ * If `defaultValue` is provided, any options with the supplied values will be
+ * selected.
  */
 
+function getHostProps$2(element, props) {
+  return _assign({}, props, {
+    value: undefined
+  });
+}
 
-function getLeafNode(node) {
-  while (node && node.firstChild) {
-    node = node.firstChild;
+function initWrapperState$1(element, props) {
+  var node = element;
+  {
+    checkSelectPropTypes(props);
   }
-  return node;
-}
 
-/**
- * Get the next sibling within a container. This will walk up the
- * DOM if a node's siblings have been exhausted.
- *
- * @param {DOMElement|DOMTextNode} node
- * @return {?DOMElement|DOMTextNode}
- */
-function getSiblingNode(node) {
-  while (node) {
-    if (node.nextSibling) {
-      return node.nextSibling;
+  var value = props.value;
+  node._wrapperState = {
+    initialValue: value != null ? value : props.defaultValue,
+    wasMultiple: !!props.multiple
+  };
+
+  {
+    if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValueDefaultValue$1) {
+      warning(false, 'Select elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled select ' + 'element and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
+      didWarnValueDefaultValue$1 = true;
     }
-    node = node.parentNode;
   }
 }
 
-/**
- * Get object describing the nodes which contain characters at offset.
- *
- * @param {DOMElement|DOMTextNode} root
- * @param {number} offset
- * @return {?object}
- */
-function getNodeForCharacterOffset(root, offset) {
-  var node = getLeafNode(root);
-  var nodeStart = 0;
-  var nodeEnd = 0;
+function postMountWrapper$2(element, props) {
+  var node = element;
+  node.multiple = !!props.multiple;
+  var value = props.value;
+  if (value != null) {
+    updateOptions(node, !!props.multiple, value, false);
+  } else if (props.defaultValue != null) {
+    updateOptions(node, !!props.multiple, props.defaultValue, true);
+  }
+}
 
-  while (node) {
-    if (node.nodeType === TEXT_NODE$3) {
-      nodeEnd = nodeStart + node.textContent.length;
+function postUpdateWrapper(element, props) {
+  var node = element;
+  // After the initial mount, we control selected-ness manually so don't pass
+  // this value down
+  node._wrapperState.initialValue = undefined;
 
-      if (nodeStart <= offset && nodeEnd >= offset) {
-        return {
-          node: node,
-          offset: offset - nodeStart
-        };
-      }
+  var wasMultiple = node._wrapperState.wasMultiple;
+  node._wrapperState.wasMultiple = !!props.multiple;
 
-      nodeStart = nodeEnd;
+  var value = props.value;
+  if (value != null) {
+    updateOptions(node, !!props.multiple, value, false);
+  } else if (wasMultiple !== !!props.multiple) {
+    // For simplicity, reapply `defaultValue` if `multiple` is toggled.
+    if (props.defaultValue != null) {
+      updateOptions(node, !!props.multiple, props.defaultValue, true);
+    } else {
+      // Revert the select back to its default unselected state.
+      updateOptions(node, !!props.multiple, props.multiple ? [] : '', false);
     }
-
-    node = getLeafNode(getSiblingNode(node));
   }
 }
 
-var getNodeForCharacterOffset_1 = getNodeForCharacterOffset;
-
-var contentKey = null;
+function restoreControlledState$2(element, props) {
+  var node = element;
+  var value = props.value;
 
-/**
- * Gets the key used to access text content on a DOM node.
- *
- * @return {?string} Key used to access text content.
- * @internal
- */
-function getTextContentAccessor() {
-  if (!contentKey && ExecutionEnvironment.canUseDOM) {
-    // Prefer textContent to innerText because many browsers support both but
-    // SVG <text> elements don't support innerText even when <div> does.
-    contentKey = 'textContent' in document.documentElement ? 'textContent' : 'innerText';
+  if (value != null) {
+    updateOptions(node, !!props.multiple, value, false);
   }
-  return contentKey;
 }
 
-var getTextContentAccessor_1 = getTextContentAccessor;
+// TODO: direct imports like some-package/src/* are bad. Fix me.
+var getCurrentFiberStackAddendum$5 = ReactDebugCurrentFiber.getCurrentFiberStackAddendum;
 
-/**
- * While `isCollapsed` is available on the Selection object and `collapsed`
- * is available on the Range object, IE11 sometimes gets them wrong.
- * If the anchor/focus nodes and offsets are the same, the range is collapsed.
- */
-function isCollapsed(anchorNode, anchorOffset, focusNode$$1, focusOffset) {
-  return anchorNode === focusNode$$1 && anchorOffset === focusOffset;
-}
+var didWarnValDefaultVal = false;
 
 /**
- * @param {DOMElement} node
- * @return {?object}
+ * Implements a <textarea> host component that allows setting `value`, and
+ * `defaultValue`. This differs from the traditional DOM API because value is
+ * usually set as PCDATA children.
+ *
+ * If `value` is not supplied (or null/undefined), user actions that affect the
+ * value will trigger updates to the element.
+ *
+ * If `value` is supplied (and not null/undefined), the rendered element will
+ * not trigger updates to the element. Instead, the `value` prop must change in
+ * order for the rendered element to be updated.
+ *
+ * The rendered element will be initialized with an empty value, the prop
+ * `defaultValue` if specified, or the children content (deprecated).
  */
-function getModernOffsets(node) {
-  var selection = window.getSelection && window.getSelection();
-
-  if (!selection || selection.rangeCount === 0) {
-    return null;
-  }
 
-  var anchorNode = selection.anchorNode;
-  var anchorOffset = selection.anchorOffset;
-  var focusNode$$1 = selection.focusNode;
-  var focusOffset = selection.focusOffset;
+function getHostProps$3(element, props) {
+  var node = element;
+  !(props.dangerouslySetInnerHTML == null) ? invariant(false, '`dangerouslySetInnerHTML` does not make sense on <textarea>.') : void 0;
+
+  // Always set children to the same thing. In IE9, the selection range will
+  // get reset if `textContent` is mutated.  We could add a check in setTextContent
+  // to only set the value if/when the value differs from the node value (which would
+  // completely solve this IE9 bug), but Sebastian+Sophie seemed to like this
+  // solution. The value can be a boolean or object so that's why it's forced
+  // to be a string.
+  var hostProps = _assign({}, props, {
+    value: undefined,
+    defaultValue: undefined,
+    children: '' + node._wrapperState.initialValue
+  });
 
-  var currentRange = selection.getRangeAt(0);
+  return hostProps;
+}
 
-  // In Firefox, range.startContainer and range.endContainer can be "anonymous
-  // divs", e.g. the up/down buttons on an <input type="number">. Anonymous
-  // divs do not seem to expose properties, triggering a "Permission denied
-  // error" if any of its properties are accessed. The only seemingly possible
-  // way to avoid erroring is to access a property that typically works for
-  // non-anonymous divs and catch any error that may otherwise arise. See
-  // https://bugzilla.mozilla.org/show_bug.cgi?id=208427
-  try {
-    /* eslint-disable no-unused-expressions */
-    currentRange.startContainer.nodeType;
-    currentRange.endContainer.nodeType;
-    /* eslint-enable no-unused-expressions */
-  } catch (e) {
-    return null;
+function initWrapperState$2(element, props) {
+  var node = element;
+  {
+    ReactControlledValuePropTypes.checkPropTypes('textarea', props, getCurrentFiberStackAddendum$5);
+    if (props.value !== undefined && props.defaultValue !== undefined && !didWarnValDefaultVal) {
+      warning(false, 'Textarea elements must be either controlled or uncontrolled ' + '(specify either the value prop, or the defaultValue prop, but not ' + 'both). Decide between using a controlled or uncontrolled textarea ' + 'and remove one of these props. More info: ' + 'https://fb.me/react-controlled-components');
+      didWarnValDefaultVal = true;
+    }
   }
 
-  // If the node and offset values are the same, the selection is collapsed.
-  // `Selection.isCollapsed` is available natively, but IE sometimes gets
-  // this value wrong.
-  var isSelectionCollapsed = isCollapsed(selection.anchorNode, selection.anchorOffset, selection.focusNode, selection.focusOffset);
-
-  var rangeLength = isSelectionCollapsed ? 0 : currentRange.toString().length;
-
-  var tempRange = currentRange.cloneRange();
-  tempRange.selectNodeContents(node);
-  tempRange.setEnd(currentRange.startContainer, currentRange.startOffset);
+  var initialValue = props.value;
 
-  var isTempRangeCollapsed = isCollapsed(tempRange.startContainer, tempRange.startOffset, tempRange.endContainer, tempRange.endOffset);
-
-  var start = isTempRangeCollapsed ? 0 : tempRange.toString().length;
-  var end = start + rangeLength;
+  // Only bother fetching default value if we're going to use it
+  if (initialValue == null) {
+    var defaultValue = props.defaultValue;
+    // TODO (yungsters): Remove support for children content in <textarea>.
+    var children = props.children;
+    if (children != null) {
+      {
+        warning(false, 'Use the `defaultValue` or `value` props instead of setting ' + 'children on <textarea>.');
+      }
+      !(defaultValue == null) ? invariant(false, 'If you supply `defaultValue` on a <textarea>, do not pass children.') : void 0;
+      if (Array.isArray(children)) {
+        !(children.length <= 1) ? invariant(false, '<textarea> can only have at most one child.') : void 0;
+        children = children[0];
+      }
 
-  // Detect whether the selection is backward.
-  var detectionRange = document.createRange();
-  detectionRange.setStart(anchorNode, anchorOffset);
-  detectionRange.setEnd(focusNode$$1, focusOffset);
-  var isBackward = detectionRange.collapsed;
+      defaultValue = '' + children;
+    }
+    if (defaultValue == null) {
+      defaultValue = '';
+    }
+    initialValue = defaultValue;
+  }
 
-  return {
-    start: isBackward ? end : start,
-    end: isBackward ? start : end
+  node._wrapperState = {
+    initialValue: '' + initialValue
   };
 }
 
-/**
- * In modern non-IE browsers, we can support both forward and backward
- * selections.
- *
- * Note: IE10+ supports the Selection object, but it does not support
- * the `extend` method, which means that even in modern IE, it's not possible
- * to programmatically create a backward selection. Thus, for all IE
- * versions, we use the old IE API to create our selections.
- *
- * @param {DOMElement|DOMTextNode} node
- * @param {object} offsets
- */
-function setModernOffsets(node, offsets) {
-  if (!window.getSelection) {
-    return;
-  }
-
-  var selection = window.getSelection();
-  var length = node[getTextContentAccessor_1()].length;
-  var start = Math.min(offsets.start, length);
-  var end = offsets.end === undefined ? start : Math.min(offsets.end, length);
-
-  // IE 11 uses modern selection, but doesn't support the extend method.
-  // Flip backward selections, so we can set with a single range.
-  if (!selection.extend && start > end) {
-    var temp = end;
-    end = start;
-    start = temp;
-  }
-
-  var startMarker = getNodeForCharacterOffset_1(node, start);
-  var endMarker = getNodeForCharacterOffset_1(node, end);
-
-  if (startMarker && endMarker) {
-    var range = document.createRange();
-    range.setStart(startMarker.node, startMarker.offset);
-    selection.removeAllRanges();
+function updateWrapper$1(element, props) {
+  var node = element;
+  var value = props.value;
+  if (value != null) {
+    // Cast `value` to a string to ensure the value is set correctly. While
+    // browsers typically do this as necessary, jsdom doesn't.
+    var newValue = '' + value;
 
-    if (start > end) {
-      selection.addRange(range);
-      selection.extend(endMarker.node, endMarker.offset);
-    } else {
-      range.setEnd(endMarker.node, endMarker.offset);
-      selection.addRange(range);
+    // To avoid side effects (such as losing text selection), only set value if changed
+    if (newValue !== node.value) {
+      node.value = newValue;
     }
+    if (props.defaultValue == null) {
+      node.defaultValue = newValue;
+    }
+  }
+  if (props.defaultValue != null) {
+    node.defaultValue = props.defaultValue;
   }
 }
 
-var ReactDOMSelection = {
-  /**
-   * @param {DOMElement} node
-   */
-  getOffsets: getModernOffsets,
-
-  /**
-   * @param {DOMElement|DOMTextNode} node
-   * @param {object} offsets
-   */
-  setOffsets: setModernOffsets
-};
-
-var ReactDOMSelection_1 = ReactDOMSelection;
+function postMountWrapper$3(element, props) {
+  var node = element;
+  // This is in postMount because we need access to the DOM node, which is not
+  // available until after the component has mounted.
+  var textContent = node.textContent;
 
-var ELEMENT_NODE$2 = HTMLNodeType_1.ELEMENT_NODE;
+  // Only set node.value if textContent is equal to the expected
+  // initial value. In IE10/IE11 there is a bug where the placeholder attribute
+  // will populate textContent as well.
+  // https://developer.microsoft.com/microsoft-edge/platform/issues/101525/
+  if (textContent === node._wrapperState.initialValue) {
+    node.value = textContent;
+  }
+}
 
+function restoreControlledState$3(element, props) {
+  // DOM component is still mounted; update
+  updateWrapper$1(element, props);
+}
 
+var HTML_NAMESPACE$1 = 'http://www.w3.org/1999/xhtml';
+var MATH_NAMESPACE = 'http://www.w3.org/1998/Math/MathML';
+var SVG_NAMESPACE = 'http://www.w3.org/2000/svg';
 
+var Namespaces = {
+  html: HTML_NAMESPACE$1,
+  mathml: MATH_NAMESPACE,
+  svg: SVG_NAMESPACE
+};
 
+// Assumes there is no parent namespace.
+function getIntrinsicNamespace(type) {
+  switch (type) {
+    case 'svg':
+      return SVG_NAMESPACE;
+    case 'math':
+      return MATH_NAMESPACE;
+    default:
+      return HTML_NAMESPACE$1;
+  }
+}
 
-function isInDocument(node) {
-  return containsNode(document.documentElement, node);
+function getChildNamespace(parentNamespace, type) {
+  if (parentNamespace == null || parentNamespace === HTML_NAMESPACE$1) {
+    // No (or default) parent namespace: potential entry point.
+    return getIntrinsicNamespace(type);
+  }
+  if (parentNamespace === SVG_NAMESPACE && type === 'foreignObject') {
+    // We're leaving SVG.
+    return HTML_NAMESPACE$1;
+  }
+  // By default, pass namespace below.
+  return parentNamespace;
 }
 
+/* globals MSApp */
+
 /**
- * @ReactInputSelection: React input selection module. Based on Selection.js,
- * but modified to be suitable for react and has a couple of bug fixes (doesn't
- * assume buttons have range selections allowed).
- * Input selection module for React.
+ * Create a function which has 'unsafe' privileges (required by windows8 apps)
  */
-var ReactInputSelection = {
-  hasSelectionCapabilities: function (elem) {
-    var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
-    return nodeName && (nodeName === 'input' && elem.type === 'text' || nodeName === 'textarea' || elem.contentEditable === 'true');
-  },
-
-  getSelectionInformation: function () {
-    var focusedElem = getActiveElement();
-    return {
-      focusedElem: focusedElem,
-      selectionRange: ReactInputSelection.hasSelectionCapabilities(focusedElem) ? ReactInputSelection.getSelection(focusedElem) : null
+var createMicrosoftUnsafeLocalFunction = function (func) {
+  if (typeof MSApp !== 'undefined' && MSApp.execUnsafeLocalFunction) {
+    return function (arg0, arg1, arg2, arg3) {
+      MSApp.execUnsafeLocalFunction(function () {
+        return func(arg0, arg1, arg2, arg3);
+      });
     };
-  },
-
-  /**
-   * @restoreSelection: If any selection information was potentially lost,
-   * restore it. This is useful when performing operations that could remove dom
-   * nodes and place them back in, resulting in focus being lost.
-   */
-  restoreSelection: function (priorSelectionInformation) {
-    var curFocusedElem = getActiveElement();
-    var priorFocusedElem = priorSelectionInformation.focusedElem;
-    var priorSelectionRange = priorSelectionInformation.selectionRange;
-    if (curFocusedElem !== priorFocusedElem && isInDocument(priorFocusedElem)) {
-      if (ReactInputSelection.hasSelectionCapabilities(priorFocusedElem)) {
-        ReactInputSelection.setSelection(priorFocusedElem, priorSelectionRange);
-      }
-
-      // Focusing a node can change the scroll position, which is undesirable
-      var ancestors = [];
-      var ancestor = priorFocusedElem;
-      while (ancestor = ancestor.parentNode) {
-        if (ancestor.nodeType === ELEMENT_NODE$2) {
-          ancestors.push({
-            element: ancestor,
-            left: ancestor.scrollLeft,
-            top: ancestor.scrollTop
-          });
-        }
-      }
-
-      focusNode(priorFocusedElem);
-
-      for (var i = 0; i < ancestors.length; i++) {
-        var info = ancestors[i];
-        info.element.scrollLeft = info.left;
-        info.element.scrollTop = info.top;
-      }
-    }
-  },
-
-  /**
-   * @getSelection: Gets the selection bounds of a focused textarea, input or
-   * contentEditable node.
-   * -@input: Look up selection bounds of this input
-   * -@return {start: selectionStart, end: selectionEnd}
-   */
-  getSelection: function (input) {
-    var selection;
-
-    if ('selectionStart' in input) {
-      // Modern browser with input or textarea.
-      selection = {
-        start: input.selectionStart,
-        end: input.selectionEnd
-      };
-    } else {
-      // Content editable or old IE textarea.
-      selection = ReactDOMSelection_1.getOffsets(input);
-    }
-
-    return selection || { start: 0, end: 0 };
-  },
-
-  /**
-   * @setSelection: Sets the selection bounds of a textarea or input and focuses
-   * the input.
-   * -@input     Set selection bounds of this input or textarea
-   * -@offsets   Object of same form that is returned from get*
-   */
-  setSelection: function (input, offsets) {
-    var start = offsets.start;
-    var end = offsets.end;
-    if (end === undefined) {
-      end = start;
-    }
-
-    if ('selectionStart' in input) {
-      input.selectionStart = start;
-      input.selectionEnd = Math.min(end, input.value.length);
-    } else {
-      ReactDOMSelection_1.setOffsets(input, offsets);
-    }
+  } else {
+    return func;
   }
 };
 
-var ReactInputSelection_1 = ReactInputSelection;
+// SVG temp container for IE lacking innerHTML
+var reusableSVGContainer = void 0;
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * Set the innerHTML property of a node
  *
- * @providesModule ReactVersion
+ * @param {DOMElement} node
+ * @param {string} html
+ * @internal
  */
+var setInnerHTML = createMicrosoftUnsafeLocalFunction(function (node, html) {
+  // IE does not have innerHTML for SVG nodes, so instead we inject the
+  // new markup in a temp node and then move the child nodes across into
+  // the target node
 
-var ReactVersion = '16.0.0';
+  if (node.namespaceURI === Namespaces.svg && !('innerHTML' in node)) {
+    reusableSVGContainer = reusableSVGContainer || document.createElement('div');
+    reusableSVGContainer.innerHTML = '<svg>' + html + '</svg>';
+    var svgNode = reusableSVGContainer.firstChild;
+    while (node.firstChild) {
+      node.removeChild(node.firstChild);
+    }
+    while (svgNode.firstChild) {
+      node.appendChild(svgNode.firstChild);
+    }
+  } else {
+    node.innerHTML = html;
+  }
+});
 
 /**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
+ * Set the textContent property of a node, ensuring that whitespace is preserved
+ * even in IE8. innerText is a poor substitute for textContent and, among many
+ * issues, inserts <br> instead of the literal newline chars. innerHTML behaves
+ * as it should.
  *
- * @providesModule findDOMNode
- * 
+ * @param {DOMElement} node
+ * @param {string} text
+ * @internal
  */
+var setTextContent = function (node, text) {
+  if (text) {
+    var firstChild = node.firstChild;
 
-
-
-var ELEMENT_NODE$3 = HTMLNodeType_1.ELEMENT_NODE;
-
-var ReactCurrentOwner$3 = ReactGlobalSharedState_1.ReactCurrentOwner;
-
-
-
-
-{
-  var warning$27 = require$$0;
-}
-
-var findFiber = function (arg) {
-  invariant(false, 'Missing injection for fiber findDOMNode');
-};
-var findStack = function (arg) {
-  invariant(false, 'Missing injection for stack findDOMNode');
-};
-
-var findDOMNode = function (componentOrElement) {
-  {
-    var owner = ReactCurrentOwner$3.current;
-    if (owner !== null) {
-      var isFiber = typeof owner.tag === 'number';
-      var warnedAboutRefsInRender = isFiber ? owner.stateNode._warnedAboutRefsInRender : owner._warnedAboutRefsInRender;
-      warning$27(warnedAboutRefsInRender, '%s is accessing findDOMNode inside its render(). ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName_1(owner) || 'A component');
-      if (isFiber) {
-        owner.stateNode._warnedAboutRefsInRender = true;
-      } else {
-        owner._warnedAboutRefsInRender = true;
-      }
-    }
-  }
-  if (componentOrElement == null) {
-    return null;
-  }
-  if (componentOrElement.nodeType === ELEMENT_NODE$3) {
-    return componentOrElement;
-  }
-
-  var inst = ReactInstanceMap_1.get(componentOrElement);
-  if (inst) {
-    if (typeof inst.tag === 'number') {
-      return findFiber(inst);
-    } else {
-      return findStack(inst);
+    if (firstChild && firstChild === node.lastChild && firstChild.nodeType === TEXT_NODE) {
+      firstChild.nodeValue = text;
+      return;
     }
   }
-
-  if (typeof componentOrElement.render === 'function') {
-    invariant(false, 'Unable to find node on an unmounted component.');
-  } else {
-    invariant(false, 'Element appears to be neither ReactComponent nor DOMNode. Keys: %s', Object.keys(componentOrElement));
-  }
-};
-
-findDOMNode._injectFiber = function (fn) {
-  findFiber = fn;
-};
-findDOMNode._injectStack = function (fn) {
-  findStack = fn;
+  node.textContent = text;
 };
 
-var findDOMNode_1 = findDOMNode;
-
 /**
- * Copyright (c) 2014-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule lowPriorityWarning
+ * CSS properties which accept numbers but are not in units of "px".
  */
+var isUnitlessNumber = {
+  animationIterationCount: true,
+  borderImageOutset: true,
+  borderImageSlice: true,
+  borderImageWidth: true,
+  boxFlex: true,
+  boxFlexGroup: true,
+  boxOrdinalGroup: true,
+  columnCount: true,
+  columns: true,
+  flex: true,
+  flexGrow: true,
+  flexPositive: true,
+  flexShrink: true,
+  flexNegative: true,
+  flexOrder: true,
+  gridRow: true,
+  gridRowEnd: true,
+  gridRowSpan: true,
+  gridRowStart: true,
+  gridColumn: true,
+  gridColumnEnd: true,
+  gridColumnSpan: true,
+  gridColumnStart: true,
+  fontWeight: true,
+  lineClamp: true,
+  lineHeight: true,
+  opacity: true,
+  order: true,
+  orphans: true,
+  tabSize: true,
+  widows: true,
+  zIndex: true,
+  zoom: true,
+
+  // SVG-related properties
+  fillOpacity: true,
+  floodOpacity: true,
+  stopOpacity: true,
+  strokeDasharray: true,
+  strokeDashoffset: true,
+  strokeMiterlimit: true,
+  strokeOpacity: true,
+  strokeWidth: true
+};
 
 /**
- * Forked from fbjs/warning:
- * https://github.com/facebook/fbjs/blob/e66ba20ad5be433eb54423f2b097d829324d9de6/packages/fbjs/src/__forks__/warning.js
- *
- * Only change is we use console.warn instead of console.error,
- * and do nothing when 'console' is not supported.
- * This really simplifies the code.
- * ---
- * Similar to invariant but only logs a warning if the condition is not met.
- * This can be used to log issues in development environments in critical
- * paths. Removing the logging code for production environments will keep the
- * same logic and follow the same code paths.
+ * @param {string} prefix vendor-specific prefix, eg: Webkit
+ * @param {string} key style name, eg: transitionDuration
+ * @return {string} style name prefixed with `prefix`, properly camelCased, eg:
+ * WebkitTransitionDuration
  */
+function prefixKey(prefix, key) {
+  return prefix + key.charAt(0).toUpperCase() + key.substring(1);
+}
 
-var lowPriorityWarning$1 = function () {};
+/**
+ * Support style names that may come passed in prefixed by adding permutations
+ * of vendor prefixes.
+ */
+var prefixes = ['Webkit', 'ms', 'Moz', 'O'];
 
-{
-  var printWarning = function (format) {
-    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
-      args[_key - 1] = arguments[_key];
-    }
+// Using Object.keys here, or else the vanilla for-in loop makes IE8 go into an
+// infinite loop, because it iterates over the newly added props too.
+Object.keys(isUnitlessNumber).forEach(function (prop) {
+  prefixes.forEach(function (prefix) {
+    isUnitlessNumber[prefixKey(prefix, prop)] = isUnitlessNumber[prop];
+  });
+});
 
-    var argIndex = 0;
-    var message = 'Warning: ' + format.replace(/%s/g, function () {
-      return args[argIndex++];
-    });
-    if (typeof console !== 'undefined') {
-      console.warn(message);
-    }
-    try {
-      // --- Welcome to debugging React ---
-      // This error was thrown as a convenience so that you can use this stack
-      // to find the callsite that caused this warning to fire.
-      throw new Error(message);
-    } catch (x) {}
-  };
+/**
+ * Convert a value into the proper css writable value. The style name `name`
+ * should be logical (no hyphens), as specified
+ * in `CSSProperty.isUnitlessNumber`.
+ *
+ * @param {string} name CSS property name such as `topMargin`.
+ * @param {*} value CSS property value such as `10px`.
+ * @return {string} Normalized style value with dimensions applied.
+ */
+function dangerousStyleValue(name, value, isCustomProperty) {
+  // Note that we've removed escapeTextForBrowser() calls here since the
+  // whole string will be escaped when the attribute is injected into
+  // the markup. If you provide unsafe user data here they can inject
+  // arbitrary CSS which may be problematic (I couldn't repro this):
+  // https://www.owasp.org/index.php/XSS_Filter_Evasion_Cheat_Sheet
+  // http://www.thespanner.co.uk/2007/11/26/ultimate-xss-css-injection/
+  // This is not an XSS hole but instead a potential CSS injection issue
+  // which has lead to a greater discussion about how we're going to
+  // trust URLs moving forward. See #2115901
 
-  lowPriorityWarning$1 = function (condition, format) {
-    if (format === undefined) {
-      throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument');
-    }
-    if (!condition) {
-      for (var _len2 = arguments.length, args = Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {
-        args[_key2 - 2] = arguments[_key2];
-      }
+  var isEmpty = value == null || typeof value === 'boolean' || value === '';
+  if (isEmpty) {
+    return '';
+  }
 
-      printWarning.apply(undefined, [format].concat(args));
-    }
-  };
-}
+  if (!isCustomProperty && typeof value === 'number' && value !== 0 && !(isUnitlessNumber.hasOwnProperty(name) && isUnitlessNumber[name])) {
+    return value + 'px'; // Presumes implicit 'px' suffix for unitless numbers
+  }
 
-var lowPriorityWarning_1 = lowPriorityWarning$1;
+  return ('' + value).trim();
+}
 
-var validateDOMNesting$1 = emptyFunction;
+var warnValidStyle = emptyFunction;
 
 {
-  var warning$28 = require$$0;
+  // 'msTransform' is correct, but the other prefixes should be capitalized
+  var badVendoredStyleNamePattern = /^(?:webkit|moz|o)[A-Z]/;
 
-  var _require$13 = ReactDebugCurrentFiber_1,
-      getCurrentFiberStackAddendum$6 = _require$13.getCurrentFiberStackAddendum;
+  // style values shouldn't contain a semicolon
+  var badStyleValueWithSemicolonPattern = /;\s*$/;
 
-  // This validation code was written based on the HTML5 parsing spec:
-  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
-  //
-  // Note: this does not catch all invalid nesting, nor does it try to (as it's
-  // not clear what practical benefit doing so provides); instead, we warn only
-  // for cases where the parser will give a parse tree differing from what React
-  // intended. For example, <b><div></div></b> is invalid but we don't warn
-  // because it still parses correctly; we do warn for other cases like nested
-  // <p> tags where the beginning of the second element implicitly closes the
-  // first, causing a confusing mess.
+  var warnedStyleNames = {};
+  var warnedStyleValues = {};
+  var warnedForNaNValue = false;
+  var warnedForInfinityValue = false;
 
-  // https://html.spec.whatwg.org/multipage/syntax.html#special
+  var warnHyphenatedStyleName = function (name, getStack) {
+    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
+      return;
+    }
 
+    warnedStyleNames[name] = true;
+    warning(false, 'Unsupported style property %s. Did you mean %s?%s', name, camelizeStyleName(name), getStack());
+  };
 
-  var specialTags = ['address', 'applet', 'area', 'article', 'aside', 'base', 'basefont', 'bgsound', 'blockquote', 'body', 'br', 'button', 'caption', 'center', 'col', 'colgroup', 'dd', 'details', 'dir', 'div', 'dl', 'dt', 'embed', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'frame', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'iframe', 'img', 'input', 'isindex', 'li', 'link', 'listing', 'main', 'marquee', 'menu', 'menuitem', 'meta', 'nav', 'noembed', 'noframes', 'noscript', 'object', 'ol', 'p', 'param', 'plaintext', 'pre', 'script', 'section', 'select', 'source', 'style', 'summary', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'title', 'tr', 'track', 'ul', 'wbr', 'xmp'];
+  var warnBadVendoredStyleName = function (name, getStack) {
+    if (warnedStyleNames.hasOwnProperty(name) && warnedStyleNames[name]) {
+      return;
+    }
 
-  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
-  var inScopeTags = ['applet', 'caption', 'html', 'table', 'td', 'th', 'marquee', 'object', 'template',
+    warnedStyleNames[name] = true;
+    warning(false, 'Unsupported vendor-prefixed style property %s. Did you mean %s?%s', name, name.charAt(0).toUpperCase() + name.slice(1), getStack());
+  };
 
-  // https://html.spec.whatwg.org/multipage/syntax.html#html-integration-point
-  // TODO: Distinguish by namespace here -- for <title>, including it here
-  // errs on the side of fewer warnings
-  'foreignObject', 'desc', 'title'];
+  var warnStyleValueWithSemicolon = function (name, value, getStack) {
+    if (warnedStyleValues.hasOwnProperty(value) && warnedStyleValues[value]) {
+      return;
+    }
 
-  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-button-scope
-  var buttonScopeTags = inScopeTags.concat(['button']);
+    warnedStyleValues[value] = true;
+    warning(false, "Style property values shouldn't contain a semicolon. " + 'Try "%s: %s" instead.%s', name, value.replace(badStyleValueWithSemicolonPattern, ''), getStack());
+  };
 
-  // https://html.spec.whatwg.org/multipage/syntax.html#generate-implied-end-tags
-  var impliedEndTags = ['dd', 'dt', 'li', 'option', 'optgroup', 'p', 'rp', 'rt'];
+  var warnStyleValueIsNaN = function (name, value, getStack) {
+    if (warnedForNaNValue) {
+      return;
+    }
 
-  var emptyAncestorInfo = {
-    current: null,
+    warnedForNaNValue = true;
+    warning(false, '`NaN` is an invalid value for the `%s` css style property.%s', name, getStack());
+  };
 
-    formTag: null,
-    aTagInScope: null,
-    buttonTagInScope: null,
-    nobrTagInScope: null,
-    pTagInButtonScope: null,
+  var warnStyleValueIsInfinity = function (name, value, getStack) {
+    if (warnedForInfinityValue) {
+      return;
+    }
 
-    listItemTagAutoclosing: null,
-    dlItemTagAutoclosing: null
+    warnedForInfinityValue = true;
+    warning(false, '`Infinity` is an invalid value for the `%s` css style property.%s', name, getStack());
   };
 
-  var updatedAncestorInfo$1 = function (oldInfo, tag, instance) {
-    var ancestorInfo = _assign({}, oldInfo || emptyAncestorInfo);
-    var info = { tag: tag, instance: instance };
-
-    if (inScopeTags.indexOf(tag) !== -1) {
-      ancestorInfo.aTagInScope = null;
-      ancestorInfo.buttonTagInScope = null;
-      ancestorInfo.nobrTagInScope = null;
-    }
-    if (buttonScopeTags.indexOf(tag) !== -1) {
-      ancestorInfo.pTagInButtonScope = null;
+  warnValidStyle = function (name, value, getStack) {
+    if (name.indexOf('-') > -1) {
+      warnHyphenatedStyleName(name, getStack);
+    } else if (badVendoredStyleNamePattern.test(name)) {
+      warnBadVendoredStyleName(name, getStack);
+    } else if (badStyleValueWithSemicolonPattern.test(value)) {
+      warnStyleValueWithSemicolon(name, value, getStack);
     }
 
-    // See rules for 'li', 'dd', 'dt' start tags in
-    // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
-    if (specialTags.indexOf(tag) !== -1 && tag !== 'address' && tag !== 'div' && tag !== 'p') {
-      ancestorInfo.listItemTagAutoclosing = null;
-      ancestorInfo.dlItemTagAutoclosing = null;
+    if (typeof value === 'number') {
+      if (isNaN(value)) {
+        warnStyleValueIsNaN(name, value, getStack);
+      } else if (!isFinite(value)) {
+        warnStyleValueIsInfinity(name, value, getStack);
+      }
     }
+  };
+}
 
-    ancestorInfo.current = info;
+var warnValidStyle$1 = warnValidStyle;
 
-    if (tag === 'form') {
-      ancestorInfo.formTag = info;
+/**
+ * Operations for dealing with CSS properties.
+ */
+
+/**
+ * This creates a string that is expected to be equivalent to the style
+ * attribute generated by server-side rendering. It by-passes warnings and
+ * security checks so it's not safe to use this value for anything other than
+ * comparison. It is only used in DEV for SSR validation.
+ */
+function createDangerousStringForStyles(styles) {
+  {
+    var serialized = '';
+    var delimiter = '';
+    for (var styleName in styles) {
+      if (!styles.hasOwnProperty(styleName)) {
+        continue;
+      }
+      var styleValue = styles[styleName];
+      if (styleValue != null) {
+        var isCustomProperty = styleName.indexOf('--') === 0;
+        serialized += delimiter + hyphenateStyleName(styleName) + ':';
+        serialized += dangerousStyleValue(styleName, styleValue, isCustomProperty);
+
+        delimiter = ';';
+      }
     }
-    if (tag === 'a') {
-      ancestorInfo.aTagInScope = info;
+    return serialized || null;
+  }
+}
+
+/**
+ * Sets the value for multiple styles on a node.  If a value is specified as
+ * '' (empty string), the corresponding style property will be unset.
+ *
+ * @param {DOMElement} node
+ * @param {object} styles
+ */
+function setValueForStyles(node, styles, getStack) {
+  var style = node.style;
+  for (var styleName in styles) {
+    if (!styles.hasOwnProperty(styleName)) {
+      continue;
     }
-    if (tag === 'button') {
-      ancestorInfo.buttonTagInScope = info;
+    var isCustomProperty = styleName.indexOf('--') === 0;
+    {
+      if (!isCustomProperty) {
+        warnValidStyle$1(styleName, styles[styleName], getStack);
+      }
     }
-    if (tag === 'nobr') {
-      ancestorInfo.nobrTagInScope = info;
-    }
-    if (tag === 'p') {
-      ancestorInfo.pTagInButtonScope = info;
+    var styleValue = dangerousStyleValue(styleName, styles[styleName], isCustomProperty);
+    if (styleName === 'float') {
+      styleName = 'cssFloat';
     }
-    if (tag === 'li') {
-      ancestorInfo.listItemTagAutoclosing = info;
-    }
-    if (tag === 'dd' || tag === 'dt') {
-      ancestorInfo.dlItemTagAutoclosing = info;
+    if (isCustomProperty) {
+      style.setProperty(styleName, styleValue);
+    } else {
+      style[styleName] = styleValue;
     }
+  }
+}
 
-    return ancestorInfo;
-  };
+// For HTML, certain tags should omit their close tag. We keep a whitelist for
+// those special-case tags.
 
-  /**
-   * Returns whether
-   */
-  var isTagValidWithParent = function (tag, parentTag) {
-    // First, let's check if we're in an unusual parsing mode...
-    switch (parentTag) {
-      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inselect
-      case 'select':
-        return tag === 'option' || tag === 'optgroup' || tag === '#text';
-      case 'optgroup':
-        return tag === 'option' || tag === '#text';
-      // Strictly speaking, seeing an <option> doesn't mean we're in a <select>
-      // but
-      case 'option':
-        return tag === '#text';
-      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intd
-      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incaption
-      // No special behavior since these rules fall back to "in body" mode for
-      // all except special table nodes which cause bad parsing behavior anyway.
+var omittedCloseTags = {
+  area: true,
+  base: true,
+  br: true,
+  col: true,
+  embed: true,
+  hr: true,
+  img: true,
+  input: true,
+  keygen: true,
+  link: true,
+  meta: true,
+  param: true,
+  source: true,
+  track: true,
+  wbr: true
+};
 
-      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intr
-      case 'tr':
-        return tag === 'th' || tag === 'td' || tag === 'style' || tag === 'script' || tag === 'template';
-      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intbody
-      case 'tbody':
-      case 'thead':
-      case 'tfoot':
-        return tag === 'tr' || tag === 'style' || tag === 'script' || tag === 'template';
-      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incolgroup
-      case 'colgroup':
-        return tag === 'col' || tag === 'template';
-      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intable
-      case 'table':
-        return tag === 'caption' || tag === 'colgroup' || tag === 'tbody' || tag === 'tfoot' || tag === 'thead' || tag === 'style' || tag === 'script' || tag === 'template';
-      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inhead
-      case 'head':
-        return tag === 'base' || tag === 'basefont' || tag === 'bgsound' || tag === 'link' || tag === 'meta' || tag === 'title' || tag === 'noscript' || tag === 'noframes' || tag === 'style' || tag === 'script' || tag === 'template';
-      // https://html.spec.whatwg.org/multipage/semantics.html#the-html-element
-      case 'html':
-        return tag === 'head' || tag === 'body';
-      case '#document':
-        return tag === 'html';
-    }
+// For HTML, certain tags cannot have children. This has the same purpose as
+// `omittedCloseTags` except that `menuitem` should still have its closing tag.
 
-    // Probably in the "in body" parsing mode, so we outlaw only tag combos
-    // where the parsing rules cause implicit opens or closes to be added.
-    // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
-    switch (tag) {
-      case 'h1':
-      case 'h2':
-      case 'h3':
-      case 'h4':
-      case 'h5':
-      case 'h6':
-        return parentTag !== 'h1' && parentTag !== 'h2' && parentTag !== 'h3' && parentTag !== 'h4' && parentTag !== 'h5' && parentTag !== 'h6';
+var voidElementTags = _assign({
+  menuitem: true
+}, omittedCloseTags);
 
-      case 'rp':
-      case 'rt':
-        return impliedEndTags.indexOf(parentTag) === -1;
+var HTML$1 = '__html';
 
-      case 'body':
-      case 'caption':
-      case 'col':
-      case 'colgroup':
-      case 'frame':
-      case 'head':
-      case 'html':
-      case 'tbody':
-      case 'td':
-      case 'tfoot':
-      case 'th':
-      case 'thead':
-      case 'tr':
-        // These tags are only valid with a few parents that have special child
-        // parsing rules -- if we're down here, then none of those matched and
-        // so we allow it only if we don't know what the parent is, as all other
-        // cases are invalid.
-        return parentTag == null;
-    }
+function assertValidProps(tag, props, getStack) {
+  if (!props) {
+    return;
+  }
+  // Note the use of `==` which checks for null or undefined.
+  if (voidElementTags[tag]) {
+    !(props.children == null && props.dangerouslySetInnerHTML == null) ? invariant(false, '%s is a void element tag and must neither have `children` nor use `dangerouslySetInnerHTML`.%s', tag, getStack()) : void 0;
+  }
+  if (props.dangerouslySetInnerHTML != null) {
+    !(props.children == null) ? invariant(false, 'Can only set one of `children` or `props.dangerouslySetInnerHTML`.') : void 0;
+    !(typeof props.dangerouslySetInnerHTML === 'object' && HTML$1 in props.dangerouslySetInnerHTML) ? invariant(false, '`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. Please visit https://fb.me/react-invariant-dangerously-set-inner-html for more information.') : void 0;
+  }
+  {
+    warning(props.suppressContentEditableWarning || !props.contentEditable || props.children == null, 'A component is `contentEditable` and contains `children` managed by ' + 'React. It is now your responsibility to guarantee that none of ' + 'those nodes are unexpectedly modified or duplicated. This is ' + 'probably not intentional.%s', getStack());
+  }
+  !(props.style == null || typeof props.style === 'object') ? invariant(false, 'The `style` prop expects a mapping from style properties to values, not a string. For example, style={{marginRight: spacing + \'em\'}} when using JSX.%s', getStack()) : void 0;
+}
 
-    return true;
-  };
+function isCustomComponent(tagName, props) {
+  if (tagName.indexOf('-') === -1) {
+    return typeof props.is === 'string';
+  }
+  switch (tagName) {
+    // These are reserved SVG and MathML elements.
+    // We don't mind this whitelist too much because we expect it to never grow.
+    // The alternative is to track the namespace in a few places which is convoluted.
+    // https://w3c.github.io/webcomponents/spec/custom/#custom-elements-core-concepts
+    case 'annotation-xml':
+    case 'color-profile':
+    case 'font-face':
+    case 'font-face-src':
+    case 'font-face-uri':
+    case 'font-face-format':
+    case 'font-face-name':
+    case 'missing-glyph':
+      return false;
+    default:
+      return true;
+  }
+}
 
-  /**
-   * Returns whether
-   */
-  var findInvalidAncestorForTag = function (tag, ancestorInfo) {
-    switch (tag) {
-      case 'address':
-      case 'article':
-      case 'aside':
-      case 'blockquote':
-      case 'center':
-      case 'details':
-      case 'dialog':
-      case 'dir':
-      case 'div':
-      case 'dl':
-      case 'fieldset':
-      case 'figcaption':
-      case 'figure':
-      case 'footer':
-      case 'header':
-      case 'hgroup':
-      case 'main':
-      case 'menu':
-      case 'nav':
-      case 'ol':
-      case 'p':
-      case 'section':
-      case 'summary':
-      case 'ul':
-      case 'pre':
-      case 'listing':
-      case 'table':
-      case 'hr':
-      case 'xmp':
-      case 'h1':
-      case 'h2':
-      case 'h3':
-      case 'h4':
-      case 'h5':
-      case 'h6':
-        return ancestorInfo.pTagInButtonScope;
+var ariaProperties = {
+  'aria-current': 0, // state
+  'aria-details': 0,
+  'aria-disabled': 0, // state
+  'aria-hidden': 0, // state
+  'aria-invalid': 0, // state
+  'aria-keyshortcuts': 0,
+  'aria-label': 0,
+  'aria-roledescription': 0,
+  // Widget Attributes
+  'aria-autocomplete': 0,
+  'aria-checked': 0,
+  'aria-expanded': 0,
+  'aria-haspopup': 0,
+  'aria-level': 0,
+  'aria-modal': 0,
+  'aria-multiline': 0,
+  'aria-multiselectable': 0,
+  'aria-orientation': 0,
+  'aria-placeholder': 0,
+  'aria-pressed': 0,
+  'aria-readonly': 0,
+  'aria-required': 0,
+  'aria-selected': 0,
+  'aria-sort': 0,
+  'aria-valuemax': 0,
+  'aria-valuemin': 0,
+  'aria-valuenow': 0,
+  'aria-valuetext': 0,
+  // Live Region Attributes
+  'aria-atomic': 0,
+  'aria-busy': 0,
+  'aria-live': 0,
+  'aria-relevant': 0,
+  // Drag-and-Drop Attributes
+  'aria-dropeffect': 0,
+  'aria-grabbed': 0,
+  // Relationship Attributes
+  'aria-activedescendant': 0,
+  'aria-colcount': 0,
+  'aria-colindex': 0,
+  'aria-colspan': 0,
+  'aria-controls': 0,
+  'aria-describedby': 0,
+  'aria-errormessage': 0,
+  'aria-flowto': 0,
+  'aria-labelledby': 0,
+  'aria-owns': 0,
+  'aria-posinset': 0,
+  'aria-rowcount': 0,
+  'aria-rowindex': 0,
+  'aria-rowspan': 0,
+  'aria-setsize': 0
+};
 
-      case 'form':
-        return ancestorInfo.formTag || ancestorInfo.pTagInButtonScope;
+var warnedProperties = {};
+var rARIA = new RegExp('^(aria)-[' + ATTRIBUTE_NAME_CHAR + ']*$');
+var rARIACamel = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');
 
-      case 'li':
-        return ancestorInfo.listItemTagAutoclosing;
+var hasOwnProperty = Object.prototype.hasOwnProperty;
 
-      case 'dd':
-      case 'dt':
-        return ancestorInfo.dlItemTagAutoclosing;
+function getStackAddendum() {
+  var stack = ReactDebugCurrentFrame.getStackAddendum();
+  return stack != null ? stack : '';
+}
 
-      case 'button':
-        return ancestorInfo.buttonTagInScope;
-
-      case 'a':
-        // Spec says something about storing a list of markers, but it sounds
-        // equivalent to this check.
-        return ancestorInfo.aTagInScope;
-
-      case 'nobr':
-        return ancestorInfo.nobrTagInScope;
-    }
-
-    return null;
-  };
-
-  /**
-   * Given a ReactCompositeComponent instance, return a list of its recursive
-   * owners, starting at the root and ending with the instance itself.
-   */
-  var findOwnerStack = function (instance) {
-    if (!instance) {
-      return [];
-    }
-
-    var stack = [];
-    do {
-      stack.push(instance);
-    } while (instance = instance._currentElement._owner);
-    stack.reverse();
-    return stack;
-  };
-
-  var getOwnerInfo = function (childInstance, childTag, ancestorInstance, ancestorTag, isParent) {
-    var childOwner = childInstance && childInstance._currentElement._owner;
-    var ancestorOwner = ancestorInstance && ancestorInstance._currentElement._owner;
-
-    var childOwners = findOwnerStack(childOwner);
-    var ancestorOwners = findOwnerStack(ancestorOwner);
-
-    var minStackLen = Math.min(childOwners.length, ancestorOwners.length);
-    var i;
-
-    var deepestCommon = -1;
-    for (i = 0; i < minStackLen; i++) {
-      if (childOwners[i] === ancestorOwners[i]) {
-        deepestCommon = i;
-      } else {
-        break;
-      }
-    }
-
-    var UNKNOWN = '(unknown)';
-    var childOwnerNames = childOwners.slice(deepestCommon + 1).map(function (inst) {
-      return getComponentName_1(inst) || UNKNOWN;
-    });
-    var ancestorOwnerNames = ancestorOwners.slice(deepestCommon + 1).map(function (inst) {
-      return getComponentName_1(inst) || UNKNOWN;
-    });
-    var ownerInfo = [].concat(
-    // If the parent and child instances have a common owner ancestor, start
-    // with that -- otherwise we just start with the parent's owners.
-    deepestCommon !== -1 ? getComponentName_1(childOwners[deepestCommon]) || UNKNOWN : [], ancestorOwnerNames, ancestorTag,
-    // If we're warning about an invalid (non-parent) ancestry, add '...'
-    isParent ? [] : ['...'], childOwnerNames, childTag).join(' > ');
-
-    return ownerInfo;
-  };
-
-  var didWarn = {};
-
-  validateDOMNesting$1 = function (childTag, childText, childInstance, ancestorInfo) {
-    ancestorInfo = ancestorInfo || emptyAncestorInfo;
-    var parentInfo = ancestorInfo.current;
-    var parentTag = parentInfo && parentInfo.tag;
+function validateProperty(tagName, name) {
+  if (hasOwnProperty.call(warnedProperties, name) && warnedProperties[name]) {
+    return true;
+  }
 
-    if (childText != null) {
-      warning$28(childTag == null, 'validateDOMNesting: when childText is passed, childTag should be null');
-      childTag = '#text';
-    }
+  if (rARIACamel.test(name)) {
+    var ariaName = 'aria-' + name.slice(4).toLowerCase();
+    var correctName = ariaProperties.hasOwnProperty(ariaName) ? ariaName : null;
 
-    var invalidParent = isTagValidWithParent(childTag, parentTag) ? null : parentInfo;
-    var invalidAncestor = invalidParent ? null : findInvalidAncestorForTag(childTag, ancestorInfo);
-    var invalidParentOrAncestor = invalidParent || invalidAncestor;
-    if (!invalidParentOrAncestor) {
-      return;
+    // If this is an aria-* attribute, but is not listed in the known DOM
+    // DOM properties, then it is an invalid aria-* attribute.
+    if (correctName == null) {
+      warning(false, 'Invalid ARIA attribute `%s`. ARIA attributes follow the pattern aria-* and must be lowercase.%s', name, getStackAddendum());
+      warnedProperties[name] = true;
+      return true;
     }
-
-    var ancestorInstance = invalidParentOrAncestor.instance;
-    var ancestorTag = invalidParentOrAncestor.tag;
-    var addendum;
-
-    if (childInstance != null) {
-      addendum = ' See ' + getOwnerInfo(childInstance, childTag, ancestorInstance, ancestorTag, !!invalidParent) + '.';
-    } else {
-      addendum = getCurrentFiberStackAddendum$6();
+    // aria-* attributes should be lowercase; suggest the lowercase version.
+    if (name !== correctName) {
+      warning(false, 'Invalid ARIA attribute `%s`. Did you mean `%s`?%s', name, correctName, getStackAddendum());
+      warnedProperties[name] = true;
+      return true;
     }
+  }
 
-    var warnKey = !!invalidParent + '|' + childTag + '|' + ancestorTag + '|' + addendum;
-    if (didWarn[warnKey]) {
-      return;
-    }
-    didWarn[warnKey] = true;
+  if (rARIA.test(name)) {
+    var lowerCasedName = name.toLowerCase();
+    var standardName = ariaProperties.hasOwnProperty(lowerCasedName) ? lowerCasedName : null;
 
-    var tagDisplayName = childTag;
-    var whitespaceInfo = '';
-    if (childTag === '#text') {
-      if (/\S/.test(childText)) {
-        tagDisplayName = 'Text nodes';
-      } else {
-        tagDisplayName = 'Whitespace text nodes';
-        whitespaceInfo = " Make sure you don't have any extra whitespace between tags on " + 'each line of your source code.';
-      }
-    } else {
-      tagDisplayName = '<' + childTag + '>';
+    // If this is an aria-* attribute, but is not listed in the known DOM
+    // DOM properties, then it is an invalid aria-* attribute.
+    if (standardName == null) {
+      warnedProperties[name] = true;
+      return false;
     }
-
-    if (invalidParent) {
-      var info = '';
-      if (ancestorTag === 'table' && childTag === 'tr') {
-        info += ' Add a <tbody> to your code to match the DOM tree generated by ' + 'the browser.';
-      }
-      warning$28(false, 'validateDOMNesting(...): %s cannot appear as a child of <%s>.%s%s%s', tagDisplayName, ancestorTag, whitespaceInfo, info, addendum);
-    } else {
-      warning$28(false, 'validateDOMNesting(...): %s cannot appear as a descendant of ' + '<%s>.%s', tagDisplayName, ancestorTag, addendum);
+    // aria-* attributes should be lowercase; suggest the lowercase version.
+    if (name !== standardName) {
+      warning(false, 'Unknown ARIA attribute `%s`. Did you mean `%s`?%s', name, standardName, getStackAddendum());
+      warnedProperties[name] = true;
+      return true;
     }
-  };
-
-  validateDOMNesting$1.updatedAncestorInfo = updatedAncestorInfo$1;
+  }
 
-  // For testing
-  validateDOMNesting$1.isTagValidInContext = function (tag, ancestorInfo) {
-    ancestorInfo = ancestorInfo || emptyAncestorInfo;
-    var parentInfo = ancestorInfo.current;
-    var parentTag = parentInfo && parentInfo.tag;
-    return isTagValidWithParent(tag, parentTag) && !findInvalidAncestorForTag(tag, ancestorInfo);
-  };
+  return true;
 }
 
-var validateDOMNesting_1 = validateDOMNesting$1;
-
-var HostComponent$11 = ReactTypeOfWork.HostComponent;
+function warnInvalidARIAProps(type, props) {
+  var invalidProps = [];
 
-function getParent(inst) {
-  if (inst._hostParent !== undefined) {
-    return inst._hostParent;
-  }
-  if (typeof inst.tag === 'number') {
-    do {
-      inst = inst['return'];
-      // TODO: If this is a HostRoot we might want to bail out.
-      // That is depending on if we want nested subtrees (layers) to bubble
-      // events to their parent. We could also go through parentNode on the
-      // host node but that wouldn't work for React Native and doesn't let us
-      // do the portal feature.
-    } while (inst && inst.tag !== HostComponent$11);
-    if (inst) {
-      return inst;
+  for (var key in props) {
+    var isValid = validateProperty(type, key);
+    if (!isValid) {
+      invalidProps.push(key);
     }
   }
-  return null;
-}
-
-/**
- * Return the lowest common ancestor of A and B, or null if they are in
- * different trees.
- */
-function getLowestCommonAncestor(instA, instB) {
-  var depthA = 0;
-  for (var tempA = instA; tempA; tempA = getParent(tempA)) {
-    depthA++;
-  }
-  var depthB = 0;
-  for (var tempB = instB; tempB; tempB = getParent(tempB)) {
-    depthB++;
-  }
-
-  // If A is deeper, crawl up.
-  while (depthA - depthB > 0) {
-    instA = getParent(instA);
-    depthA--;
-  }
 
-  // If B is deeper, crawl up.
-  while (depthB - depthA > 0) {
-    instB = getParent(instB);
-    depthB--;
-  }
+  var unknownPropString = invalidProps.map(function (prop) {
+    return '`' + prop + '`';
+  }).join(', ');
 
-  // Walk in lockstep until we find a match.
-  var depth = depthA;
-  while (depth--) {
-    if (instA === instB || instA === instB.alternate) {
-      return instA;
-    }
-    instA = getParent(instA);
-    instB = getParent(instB);
+  if (invalidProps.length === 1) {
+    warning(false, 'Invalid aria prop %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop%s', unknownPropString, type, getStackAddendum());
+  } else if (invalidProps.length > 1) {
+    warning(false, 'Invalid aria props %s on <%s> tag. ' + 'For details, see https://fb.me/invalid-aria-prop%s', unknownPropString, type, getStackAddendum());
   }
-  return null;
 }
 
-/**
- * Return if A is an ancestor of B.
- */
-function isAncestor(instA, instB) {
-  while (instB) {
-    if (instA === instB || instA === instB.alternate) {
-      return true;
-    }
-    instB = getParent(instB);
+function validateProperties(type, props) {
+  if (isCustomComponent(type, props)) {
+    return;
   }
-  return false;
+  warnInvalidARIAProps(type, props);
 }
 
-/**
- * Return the parent instance of the passed-in instance.
- */
-function getParentInstance(inst) {
-  return getParent(inst);
-}
+var didWarnValueNull = false;
 
-/**
- * Simulates the traversal of a two-phase, capture/bubble event dispatch.
- */
-function traverseTwoPhase(inst, fn, arg) {
-  var path = [];
-  while (inst) {
-    path.push(inst);
-    inst = getParent(inst);
-  }
-  var i;
-  for (i = path.length; i-- > 0;) {
-    fn(path[i], 'captured', arg);
-  }
-  for (i = 0; i < path.length; i++) {
-    fn(path[i], 'bubbled', arg);
-  }
+function getStackAddendum$1() {
+  var stack = ReactDebugCurrentFrame.getStackAddendum();
+  return stack != null ? stack : '';
 }
 
-/**
- * Traverses the ID hierarchy and invokes the supplied `cb` on any IDs that
- * should would receive a `mouseEnter` or `mouseLeave` event.
- *
- * Does not invoke the callback on the nearest common ancestor because nothing
- * "entered" or "left" that element.
- */
-function traverseEnterLeave(from, to, fn, argFrom, argTo) {
-  var common = from && to ? getLowestCommonAncestor(from, to) : null;
-  var pathFrom = [];
-  while (from && from !== common) {
-    pathFrom.push(from);
-    from = getParent(from);
-  }
-  var pathTo = [];
-  while (to && to !== common) {
-    pathTo.push(to);
-    to = getParent(to);
-  }
-  var i;
-  for (i = 0; i < pathFrom.length; i++) {
-    fn(pathFrom[i], 'bubbled', argFrom);
-  }
-  for (i = pathTo.length; i-- > 0;) {
-    fn(pathTo[i], 'captured', argTo);
+function validateProperties$1(type, props) {
+  if (type !== 'input' && type !== 'textarea' && type !== 'select') {
+    return;
   }
-}
-
-var ReactTreeTraversal = {
-  isAncestor: isAncestor,
-  getLowestCommonAncestor: getLowestCommonAncestor,
-  getParentInstance: getParentInstance,
-  traverseTwoPhase: traverseTwoPhase,
-  traverseEnterLeave: traverseEnterLeave
-};
-
-var getListener = EventPluginHub_1.getListener;
-
-{
-  var warning$29 = require$$0;
-}
-
-/**
- * Some event types have a notion of different registration names for different
- * "phases" of propagation. This finds listeners by a given phase.
- */
-function listenerAtPhase(inst, event, propagationPhase) {
-  var registrationName = event.dispatchConfig.phasedRegistrationNames[propagationPhase];
-  return getListener(inst, registrationName);
-}
 
-/**
- * Tags a `SyntheticEvent` with dispatched listeners. Creating this function
- * here, allows us to not have to bind or create functions for each event.
- * Mutating the event's members allows us to not have to create a wrapping
- * "dispatch" object that pairs the event with the listener.
- */
-function accumulateDirectionalDispatches(inst, phase, event) {
-  {
-    warning$29(inst, 'Dispatching inst must not be null');
-  }
-  var listener = listenerAtPhase(inst, event, phase);
-  if (listener) {
-    event._dispatchListeners = accumulateInto_1(event._dispatchListeners, listener);
-    event._dispatchInstances = accumulateInto_1(event._dispatchInstances, inst);
+  if (props != null && props.value === null && !didWarnValueNull) {
+    didWarnValueNull = true;
+    if (type === 'select' && props.multiple) {
+      warning(false, '`value` prop on `%s` should not be null. ' + 'Consider using an empty array when `multiple` is set to `true` ' + 'to clear the component or `undefined` for uncontrolled components.%s', type, getStackAddendum$1());
+    } else {
+      warning(false, '`value` prop on `%s` should not be null. ' + 'Consider using an empty string to clear the component or `undefined` ' + 'for uncontrolled components.%s', type, getStackAddendum$1());
+    }
   }
 }
 
-/**
- * Collect dispatches (must be entirely collected before dispatching - see unit
- * tests). Lazily allocate the array to conserve memory.  We must loop through
- * each event and perform the traversal for each one. We cannot perform a
- * single traversal for the entire collection of events because each event may
- * have a different target.
- */
-function accumulateTwoPhaseDispatchesSingle(event) {
-  if (event && event.dispatchConfig.phasedRegistrationNames) {
-    ReactTreeTraversal.traverseTwoPhase(event._targetInst, accumulateDirectionalDispatches, event);
-  }
-}
-
-/**
- * Same as `accumulateTwoPhaseDispatchesSingle`, but skips over the targetID.
- */
-function accumulateTwoPhaseDispatchesSingleSkipTarget(event) {
-  if (event && event.dispatchConfig.phasedRegistrationNames) {
-    var targetInst = event._targetInst;
-    var parentInst = targetInst ? ReactTreeTraversal.getParentInstance(targetInst) : null;
-    ReactTreeTraversal.traverseTwoPhase(parentInst, accumulateDirectionalDispatches, event);
-  }
-}
-
-/**
- * Accumulates without regard to direction, does not look for phased
- * registration names. Same as `accumulateDirectDispatchesSingle` but without
- * requiring that the `dispatchMarker` be the same as the dispatched ID.
- */
-function accumulateDispatches(inst, ignoredDirection, event) {
-  if (inst && event && event.dispatchConfig.registrationName) {
-    var registrationName = event.dispatchConfig.registrationName;
-    var listener = getListener(inst, registrationName);
-    if (listener) {
-      event._dispatchListeners = accumulateInto_1(event._dispatchListeners, listener);
-      event._dispatchInstances = accumulateInto_1(event._dispatchInstances, inst);
-    }
-  }
-}
-
-/**
- * Accumulates dispatches on an `SyntheticEvent`, but only for the
- * `dispatchMarker`.
- * @param {SyntheticEvent} event
- */
-function accumulateDirectDispatchesSingle(event) {
-  if (event && event.dispatchConfig.registrationName) {
-    accumulateDispatches(event._targetInst, null, event);
-  }
-}
-
-function accumulateTwoPhaseDispatches(events) {
-  forEachAccumulated_1(events, accumulateTwoPhaseDispatchesSingle);
-}
-
-function accumulateTwoPhaseDispatchesSkipTarget(events) {
-  forEachAccumulated_1(events, accumulateTwoPhaseDispatchesSingleSkipTarget);
-}
-
-function accumulateEnterLeaveDispatches(leave, enter, from, to) {
-  ReactTreeTraversal.traverseEnterLeave(from, to, accumulateDispatches, leave, enter);
-}
-
-function accumulateDirectDispatches(events) {
-  forEachAccumulated_1(events, accumulateDirectDispatchesSingle);
-}
-
-/**
- * A small set of propagation patterns, each of which will accept a small amount
- * of information, and generate a set of "dispatch ready event objects" - which
- * are sets of events that have already been annotated with a set of dispatched
- * listener functions/ids. The API is designed this way to discourage these
- * propagation strategies from actually executing the dispatches, since we
- * always want to collect the entire set of dispatches before executing even a
- * single one.
- *
- * @constructor EventPropagators
- */
-var EventPropagators = {
-  accumulateTwoPhaseDispatches: accumulateTwoPhaseDispatches,
-  accumulateTwoPhaseDispatchesSkipTarget: accumulateTwoPhaseDispatchesSkipTarget,
-  accumulateDirectDispatches: accumulateDirectDispatches,
-  accumulateEnterLeaveDispatches: accumulateEnterLeaveDispatches
-};
-
-var EventPropagators_1 = EventPropagators;
-
-/**
- * This helper object stores information about text content of a target node,
- * allowing comparison of content before and after a given event.
- *
- * Identify the node where selection currently begins, then observe
- * both its text content and its current position in the DOM. Since the
- * browser may natively replace the target node during composition, we can
- * use its position to find its replacement.
- * 
- *
- */
-var compositionState = {
-  _root: null,
-  _startText: null,
-  _fallbackText: null
-};
-
-var FallbackCompositionState = {
-  initialize: function (nativeEventTarget) {
-    compositionState._root = nativeEventTarget;
-    compositionState._startText = FallbackCompositionState.getText();
-    return true;
-  },
-  reset: function () {
-    compositionState._root = null;
-    compositionState._startText = null;
-    compositionState._fallbackText = null;
-  },
-  getData: function () {
-    if (compositionState._fallbackText) {
-      return compositionState._fallbackText;
-    }
-
-    var start;
-    var startValue = compositionState._startText;
-    var startLength = startValue.length;
-    var end;
-    var endValue = FallbackCompositionState.getText();
-    var endLength = endValue.length;
-
-    for (start = 0; start < startLength; start++) {
-      if (startValue[start] !== endValue[start]) {
-        break;
-      }
-    }
-
-    var minEnd = startLength - start;
-    for (end = 1; end <= minEnd; end++) {
-      if (startValue[startLength - end] !== endValue[endLength - end]) {
-        break;
-      }
-    }
-
-    var sliceTail = end > 1 ? 1 - end : undefined;
-    compositionState._fallbackText = endValue.slice(start, sliceTail);
-    return compositionState._fallbackText;
-  },
-  getText: function () {
-    if ('value' in compositionState._root) {
-      return compositionState._root.value;
-    }
-    return compositionState._root[getTextContentAccessor_1()];
-  }
-};
-
-var FallbackCompositionState_1 = FallbackCompositionState;
-
-var didWarnForAddedNewProperty = false;
-var isProxySupported = typeof Proxy === 'function';
-var EVENT_POOL_SIZE = 10;
-
-{
-  var warning$30 = require$$0;
-}
-
-var shouldBeReleasedProperties = ['dispatchConfig', '_targetInst', 'nativeEvent', 'isDefaultPrevented', 'isPropagationStopped', '_dispatchListeners', '_dispatchInstances'];
+// When adding attributes to the HTML or SVG whitelist, be sure to
+// also add them to this module to ensure casing and incorrect name
+// warnings.
+var possibleStandardNames = {
+  // HTML
+  accept: 'accept',
+  acceptcharset: 'acceptCharset',
+  'accept-charset': 'acceptCharset',
+  accesskey: 'accessKey',
+  action: 'action',
+  allowfullscreen: 'allowFullScreen',
+  alt: 'alt',
+  as: 'as',
+  async: 'async',
+  autocapitalize: 'autoCapitalize',
+  autocomplete: 'autoComplete',
+  autocorrect: 'autoCorrect',
+  autofocus: 'autoFocus',
+  autoplay: 'autoPlay',
+  autosave: 'autoSave',
+  capture: 'capture',
+  cellpadding: 'cellPadding',
+  cellspacing: 'cellSpacing',
+  challenge: 'challenge',
+  charset: 'charSet',
+  checked: 'checked',
+  children: 'children',
+  cite: 'cite',
+  'class': 'className',
+  classid: 'classID',
+  classname: 'className',
+  cols: 'cols',
+  colspan: 'colSpan',
+  content: 'content',
+  contenteditable: 'contentEditable',
+  contextmenu: 'contextMenu',
+  controls: 'controls',
+  controlslist: 'controlsList',
+  coords: 'coords',
+  crossorigin: 'crossOrigin',
+  dangerouslysetinnerhtml: 'dangerouslySetInnerHTML',
+  data: 'data',
+  datetime: 'dateTime',
+  'default': 'default',
+  defaultchecked: 'defaultChecked',
+  defaultvalue: 'defaultValue',
+  defer: 'defer',
+  dir: 'dir',
+  disabled: 'disabled',
+  download: 'download',
+  draggable: 'draggable',
+  enctype: 'encType',
+  'for': 'htmlFor',
+  form: 'form',
+  formmethod: 'formMethod',
+  formaction: 'formAction',
+  formenctype: 'formEncType',
+  formnovalidate: 'formNoValidate',
+  formtarget: 'formTarget',
+  frameborder: 'frameBorder',
+  headers: 'headers',
+  height: 'height',
+  hidden: 'hidden',
+  high: 'high',
+  href: 'href',
+  hreflang: 'hrefLang',
+  htmlfor: 'htmlFor',
+  httpequiv: 'httpEquiv',
+  'http-equiv': 'httpEquiv',
+  icon: 'icon',
+  id: 'id',
+  innerhtml: 'innerHTML',
+  inputmode: 'inputMode',
+  integrity: 'integrity',
+  is: 'is',
+  itemid: 'itemID',
+  itemprop: 'itemProp',
+  itemref: 'itemRef',
+  itemscope: 'itemScope',
+  itemtype: 'itemType',
+  keyparams: 'keyParams',
+  keytype: 'keyType',
+  kind: 'kind',
+  label: 'label',
+  lang: 'lang',
+  list: 'list',
+  loop: 'loop',
+  low: 'low',
+  manifest: 'manifest',
+  marginwidth: 'marginWidth',
+  marginheight: 'marginHeight',
+  max: 'max',
+  maxlength: 'maxLength',
+  media: 'media',
+  mediagroup: 'mediaGroup',
+  method: 'method',
+  min: 'min',
+  minlength: 'minLength',
+  multiple: 'multiple',
+  muted: 'muted',
+  name: 'name',
+  nonce: 'nonce',
+  novalidate: 'noValidate',
+  open: 'open',
+  optimum: 'optimum',
+  pattern: 'pattern',
+  placeholder: 'placeholder',
+  playsinline: 'playsInline',
+  poster: 'poster',
+  preload: 'preload',
+  profile: 'profile',
+  radiogroup: 'radioGroup',
+  readonly: 'readOnly',
+  referrerpolicy: 'referrerPolicy',
+  rel: 'rel',
+  required: 'required',
+  reversed: 'reversed',
+  role: 'role',
+  rows: 'rows',
+  rowspan: 'rowSpan',
+  sandbox: 'sandbox',
+  scope: 'scope',
+  scoped: 'scoped',
+  scrolling: 'scrolling',
+  seamless: 'seamless',
+  selected: 'selected',
+  shape: 'shape',
+  size: 'size',
+  sizes: 'sizes',
+  span: 'span',
+  spellcheck: 'spellCheck',
+  src: 'src',
+  srcdoc: 'srcDoc',
+  srclang: 'srcLang',
+  srcset: 'srcSet',
+  start: 'start',
+  step: 'step',
+  style: 'style',
+  summary: 'summary',
+  tabindex: 'tabIndex',
+  target: 'target',
+  title: 'title',
+  type: 'type',
+  usemap: 'useMap',
+  value: 'value',
+  width: 'width',
+  wmode: 'wmode',
+  wrap: 'wrap',
 
-/**
- * @interface Event
- * @see http://www.w3.org/TR/DOM-Level-3-Events/
- */
-var EventInterface = {
-  type: null,
-  target: null,
-  // currentTarget is set when dispatching; no use in copying it here
-  currentTarget: emptyFunction.thatReturnsNull,
-  eventPhase: null,
-  bubbles: null,
-  cancelable: null,
-  timeStamp: function (event) {
-    return event.timeStamp || Date.now();
-  },
-  defaultPrevented: null,
-  isTrusted: null
-};
-
-/**
- * Synthetic events are dispatched by event plugins, typically in response to a
- * top-level event delegation handler.
- *
- * These systems should generally use pooling to reduce the frequency of garbage
- * collection. The system should check `isPersistent` to determine whether the
- * event should be released into the pool after being dispatched. Users that
- * need a persisted event should invoke `persist`.
- *
- * Synthetic events (and subclasses) implement the DOM Level 3 Events API by
- * normalizing browser quirks. Subclasses do not necessarily have to implement a
- * DOM interface; custom application-specific events can also subclass this.
- *
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {*} targetInst Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @param {DOMEventTarget} nativeEventTarget Target node.
- */
-function SyntheticEvent(dispatchConfig, targetInst, nativeEvent, nativeEventTarget) {
-  {
-    // these have a getter/setter for warnings
-    delete this.nativeEvent;
-    delete this.preventDefault;
-    delete this.stopPropagation;
-  }
-
-  this.dispatchConfig = dispatchConfig;
-  this._targetInst = targetInst;
-  this.nativeEvent = nativeEvent;
-
-  var Interface = this.constructor.Interface;
-  for (var propName in Interface) {
-    if (!Interface.hasOwnProperty(propName)) {
-      continue;
-    }
-    {
-      delete this[propName]; // this has a getter/setter for warnings
-    }
-    var normalize = Interface[propName];
-    if (normalize) {
-      this[propName] = normalize(nativeEvent);
-    } else {
-      if (propName === 'target') {
-        this.target = nativeEventTarget;
-      } else {
-        this[propName] = nativeEvent[propName];
-      }
-    }
-  }
-
-  var defaultPrevented = nativeEvent.defaultPrevented != null ? nativeEvent.defaultPrevented : nativeEvent.returnValue === false;
-  if (defaultPrevented) {
-    this.isDefaultPrevented = emptyFunction.thatReturnsTrue;
-  } else {
-    this.isDefaultPrevented = emptyFunction.thatReturnsFalse;
-  }
-  this.isPropagationStopped = emptyFunction.thatReturnsFalse;
-  return this;
-}
-
-_assign(SyntheticEvent.prototype, {
-  preventDefault: function () {
-    this.defaultPrevented = true;
-    var event = this.nativeEvent;
-    if (!event) {
-      return;
-    }
-
-    if (event.preventDefault) {
-      event.preventDefault();
-    } else if (typeof event.returnValue !== 'unknown') {
-      event.returnValue = false;
-    }
-    this.isDefaultPrevented = emptyFunction.thatReturnsTrue;
-  },
-
-  stopPropagation: function () {
-    var event = this.nativeEvent;
-    if (!event) {
-      return;
-    }
-
-    if (event.stopPropagation) {
-      event.stopPropagation();
-    } else if (typeof event.cancelBubble !== 'unknown') {
-      // The ChangeEventPlugin registers a "propertychange" event for
-      // IE. This event does not support bubbling or cancelling, and
-      // any references to cancelBubble throw "Member not found".  A
-      // typeof check of "unknown" circumvents this issue (and is also
-      // IE specific).
-      event.cancelBubble = true;
-    }
-
-    this.isPropagationStopped = emptyFunction.thatReturnsTrue;
-  },
-
-  /**
-   * We release all dispatched `SyntheticEvent`s after each event loop, adding
-   * them back into the pool. This allows a way to hold onto a reference that
-   * won't be added back into the pool.
-   */
-  persist: function () {
-    this.isPersistent = emptyFunction.thatReturnsTrue;
-  },
-
-  /**
-   * Checks if this event should be released back into the pool.
-   *
-   * @return {boolean} True if this should not be released, false otherwise.
-   */
-  isPersistent: emptyFunction.thatReturnsFalse,
-
-  /**
-   * `PooledClass` looks for `destructor` on each instance it releases.
-   */
-  destructor: function () {
-    var Interface = this.constructor.Interface;
-    for (var propName in Interface) {
-      {
-        Object.defineProperty(this, propName, getPooledWarningPropertyDefinition(propName, Interface[propName]));
-      }
-    }
-    for (var i = 0; i < shouldBeReleasedProperties.length; i++) {
-      this[shouldBeReleasedProperties[i]] = null;
-    }
-    {
-      Object.defineProperty(this, 'nativeEvent', getPooledWarningPropertyDefinition('nativeEvent', null));
-      Object.defineProperty(this, 'preventDefault', getPooledWarningPropertyDefinition('preventDefault', emptyFunction));
-      Object.defineProperty(this, 'stopPropagation', getPooledWarningPropertyDefinition('stopPropagation', emptyFunction));
-    }
-  }
-});
-
-SyntheticEvent.Interface = EventInterface;
-
-/**
- * Helper to reduce boilerplate when creating subclasses.
- *
- * @param {function} Class
- * @param {?object} Interface
- */
-SyntheticEvent.augmentClass = function (Class, Interface) {
-  var Super = this;
-
-  var E = function () {};
-  E.prototype = Super.prototype;
-  var prototype = new E();
-
-  _assign(prototype, Class.prototype);
-  Class.prototype = prototype;
-  Class.prototype.constructor = Class;
-
-  Class.Interface = _assign({}, Super.Interface, Interface);
-  Class.augmentClass = Super.augmentClass;
-  addEventPoolingTo(Class);
-};
-
-/** Proxying after everything set on SyntheticEvent
-  * to resolve Proxy issue on some WebKit browsers
-  * in which some Event properties are set to undefined (GH#10010)
-  */
-{
-  if (isProxySupported) {
-    /*eslint-disable no-func-assign */
-    SyntheticEvent = new Proxy(SyntheticEvent, {
-      construct: function (target, args) {
-        return this.apply(target, Object.create(target.prototype), args);
-      },
-      apply: function (constructor, that, args) {
-        return new Proxy(constructor.apply(that, args), {
-          set: function (target, prop, value) {
-            if (prop !== 'isPersistent' && !target.constructor.Interface.hasOwnProperty(prop) && shouldBeReleasedProperties.indexOf(prop) === -1) {
-              warning$30(didWarnForAddedNewProperty || target.isPersistent(), "This synthetic event is reused for performance reasons. If you're " + "seeing this, you're adding a new property in the synthetic event object. " + 'The property is never released. See ' + 'https://fb.me/react-event-pooling for more information.');
-              didWarnForAddedNewProperty = true;
-            }
-            target[prop] = value;
-            return true;
-          }
-        });
-      }
-    });
-    /*eslint-enable no-func-assign */
-  }
-}
-
-addEventPoolingTo(SyntheticEvent);
-
-var SyntheticEvent_1 = SyntheticEvent;
-
-/**
-  * Helper to nullify syntheticEvent instance properties when destructing
-  *
-  * @param {String} propName
-  * @param {?object} getVal
-  * @return {object} defineProperty object
-  */
-function getPooledWarningPropertyDefinition(propName, getVal) {
-  var isFunction = typeof getVal === 'function';
-  return {
-    configurable: true,
-    set: set,
-    get: get
-  };
-
-  function set(val) {
-    var action = isFunction ? 'setting the method' : 'setting the property';
-    warn(action, 'This is effectively a no-op');
-    return val;
-  }
-
-  function get() {
-    var action = isFunction ? 'accessing the method' : 'accessing the property';
-    var result = isFunction ? 'This is a no-op function' : 'This is set to null';
-    warn(action, result);
-    return getVal;
-  }
-
-  function warn(action, result) {
-    var warningCondition = false;
-    warning$30(warningCondition, "This synthetic event is reused for performance reasons. If you're seeing this, " + "you're %s `%s` on a released/nullified synthetic event. %s. " + 'If you must keep the original synthetic event around, use event.persist(). ' + 'See https://fb.me/react-event-pooling for more information.', action, propName, result);
-  }
-}
-
-function getPooledEvent(dispatchConfig, targetInst, nativeEvent, nativeInst) {
-  var EventConstructor = this;
-  if (EventConstructor.eventPool.length) {
-    var instance = EventConstructor.eventPool.pop();
-    EventConstructor.call(instance, dispatchConfig, targetInst, nativeEvent, nativeInst);
-    return instance;
-  }
-  return new EventConstructor(dispatchConfig, targetInst, nativeEvent, nativeInst);
-}
-
-function releasePooledEvent(event) {
-  var EventConstructor = this;
-  !(event instanceof EventConstructor) ? invariant(false, 'Trying to release an event instance  into a pool of a different type.') : void 0;
-  event.destructor();
-  if (EventConstructor.eventPool.length < EVENT_POOL_SIZE) {
-    EventConstructor.eventPool.push(event);
-  }
-}
-
-function addEventPoolingTo(EventConstructor) {
-  EventConstructor.eventPool = [];
-  EventConstructor.getPooled = getPooledEvent;
-  EventConstructor.release = releasePooledEvent;
-}
-
-/**
- * @interface Event
- * @see http://www.w3.org/TR/DOM-Level-3-Events/#events-compositionevents
- */
-var CompositionEventInterface = {
-  data: null
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticUIEvent}
- */
-function SyntheticCompositionEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticEvent_1.augmentClass(SyntheticCompositionEvent, CompositionEventInterface);
-
-var SyntheticCompositionEvent_1 = SyntheticCompositionEvent;
-
-/**
- * @interface Event
- * @see http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105
- *      /#events-inputevents
- */
-var InputEventInterface = {
-  data: null
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticUIEvent}
- */
-function SyntheticInputEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticEvent_1.augmentClass(SyntheticInputEvent, InputEventInterface);
-
-var SyntheticInputEvent_1 = SyntheticInputEvent;
-
-var END_KEYCODES = [9, 13, 27, 32]; // Tab, Return, Esc, Space
-var START_KEYCODE = 229;
-
-var canUseCompositionEvent = ExecutionEnvironment.canUseDOM && 'CompositionEvent' in window;
-
-var documentMode = null;
-if (ExecutionEnvironment.canUseDOM && 'documentMode' in document) {
-  documentMode = document.documentMode;
-}
-
-// Webkit offers a very useful `textInput` event that can be used to
-// directly represent `beforeInput`. The IE `textinput` event is not as
-// useful, so we don't use it.
-var canUseTextInputEvent = ExecutionEnvironment.canUseDOM && 'TextEvent' in window && !documentMode && !isPresto();
-
-// In IE9+, we have access to composition events, but the data supplied
-// by the native compositionend event may be incorrect. Japanese ideographic
-// spaces, for instance (\u3000) are not recorded correctly.
-var useFallbackCompositionData = ExecutionEnvironment.canUseDOM && (!canUseCompositionEvent || documentMode && documentMode > 8 && documentMode <= 11);
-
-/**
- * Opera <= 12 includes TextEvent in window, but does not fire
- * text input events. Rely on keypress instead.
- */
-function isPresto() {
-  var opera = window.opera;
-  return typeof opera === 'object' && typeof opera.version === 'function' && parseInt(opera.version(), 10) <= 12;
-}
-
-var SPACEBAR_CODE = 32;
-var SPACEBAR_CHAR = String.fromCharCode(SPACEBAR_CODE);
-
-// Events and their corresponding property names.
-var eventTypes = {
-  beforeInput: {
-    phasedRegistrationNames: {
-      bubbled: 'onBeforeInput',
-      captured: 'onBeforeInputCapture'
-    },
-    dependencies: ['topCompositionEnd', 'topKeyPress', 'topTextInput', 'topPaste']
-  },
-  compositionEnd: {
-    phasedRegistrationNames: {
-      bubbled: 'onCompositionEnd',
-      captured: 'onCompositionEndCapture'
-    },
-    dependencies: ['topBlur', 'topCompositionEnd', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
-  },
-  compositionStart: {
-    phasedRegistrationNames: {
-      bubbled: 'onCompositionStart',
-      captured: 'onCompositionStartCapture'
-    },
-    dependencies: ['topBlur', 'topCompositionStart', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
-  },
-  compositionUpdate: {
-    phasedRegistrationNames: {
-      bubbled: 'onCompositionUpdate',
-      captured: 'onCompositionUpdateCapture'
-    },
-    dependencies: ['topBlur', 'topCompositionUpdate', 'topKeyDown', 'topKeyPress', 'topKeyUp', 'topMouseDown']
-  }
-};
-
-// Track whether we've ever handled a keypress on the space key.
-var hasSpaceKeypress = false;
-
-/**
- * Return whether a native keypress event is assumed to be a command.
- * This is required because Firefox fires `keypress` events for key commands
- * (cut, copy, select-all, etc.) even though no character is inserted.
- */
-function isKeypressCommand(nativeEvent) {
-  return (nativeEvent.ctrlKey || nativeEvent.altKey || nativeEvent.metaKey) &&
-  // ctrlKey && altKey is equivalent to AltGr, and is not a command.
-  !(nativeEvent.ctrlKey && nativeEvent.altKey);
-}
-
-/**
- * Translate native top level events into event types.
- *
- * @param {string} topLevelType
- * @return {object}
- */
-function getCompositionEventType(topLevelType) {
-  switch (topLevelType) {
-    case 'topCompositionStart':
-      return eventTypes.compositionStart;
-    case 'topCompositionEnd':
-      return eventTypes.compositionEnd;
-    case 'topCompositionUpdate':
-      return eventTypes.compositionUpdate;
-  }
-}
-
-/**
- * Does our fallback best-guess model think this event signifies that
- * composition has begun?
- *
- * @param {string} topLevelType
- * @param {object} nativeEvent
- * @return {boolean}
- */
-function isFallbackCompositionStart(topLevelType, nativeEvent) {
-  return topLevelType === 'topKeyDown' && nativeEvent.keyCode === START_KEYCODE;
-}
-
-/**
- * Does our fallback mode think that this event is the end of composition?
- *
- * @param {string} topLevelType
- * @param {object} nativeEvent
- * @return {boolean}
- */
-function isFallbackCompositionEnd(topLevelType, nativeEvent) {
-  switch (topLevelType) {
-    case 'topKeyUp':
-      // Command keys insert or clear IME input.
-      return END_KEYCODES.indexOf(nativeEvent.keyCode) !== -1;
-    case 'topKeyDown':
-      // Expect IME keyCode on each keydown. If we get any other
-      // code we must have exited earlier.
-      return nativeEvent.keyCode !== START_KEYCODE;
-    case 'topKeyPress':
-    case 'topMouseDown':
-    case 'topBlur':
-      // Events are not possible without cancelling IME.
-      return true;
-    default:
-      return false;
-  }
-}
-
-/**
- * Google Input Tools provides composition data via a CustomEvent,
- * with the `data` property populated in the `detail` object. If this
- * is available on the event object, use it. If not, this is a plain
- * composition event and we have nothing special to extract.
- *
- * @param {object} nativeEvent
- * @return {?string}
- */
-function getDataFromCustomEvent(nativeEvent) {
-  var detail = nativeEvent.detail;
-  if (typeof detail === 'object' && 'data' in detail) {
-    return detail.data;
-  }
-  return null;
-}
-
-// Track the current IME composition status, if any.
-var isComposing = false;
-
-/**
- * @return {?object} A SyntheticCompositionEvent.
- */
-function extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-  var eventType;
-  var fallbackData;
-
-  if (canUseCompositionEvent) {
-    eventType = getCompositionEventType(topLevelType);
-  } else if (!isComposing) {
-    if (isFallbackCompositionStart(topLevelType, nativeEvent)) {
-      eventType = eventTypes.compositionStart;
-    }
-  } else if (isFallbackCompositionEnd(topLevelType, nativeEvent)) {
-    eventType = eventTypes.compositionEnd;
-  }
-
-  if (!eventType) {
-    return null;
-  }
-
-  if (useFallbackCompositionData) {
-    // The current composition is stored statically and must not be
-    // overwritten while composition continues.
-    if (!isComposing && eventType === eventTypes.compositionStart) {
-      isComposing = FallbackCompositionState_1.initialize(nativeEventTarget);
-    } else if (eventType === eventTypes.compositionEnd) {
-      if (isComposing) {
-        fallbackData = FallbackCompositionState_1.getData();
-      }
-    }
-  }
-
-  var event = SyntheticCompositionEvent_1.getPooled(eventType, targetInst, nativeEvent, nativeEventTarget);
-
-  if (fallbackData) {
-    // Inject data generated from fallback path into the synthetic event.
-    // This matches the property of native CompositionEventInterface.
-    event.data = fallbackData;
-  } else {
-    var customData = getDataFromCustomEvent(nativeEvent);
-    if (customData !== null) {
-      event.data = customData;
-    }
-  }
-
-  EventPropagators_1.accumulateTwoPhaseDispatches(event);
-  return event;
-}
-
-/**
- * @param {TopLevelTypes} topLevelType Record from `BrowserEventConstants`.
- * @param {object} nativeEvent Native browser event.
- * @return {?string} The string corresponding to this `beforeInput` event.
- */
-function getNativeBeforeInputChars(topLevelType, nativeEvent) {
-  switch (topLevelType) {
-    case 'topCompositionEnd':
-      return getDataFromCustomEvent(nativeEvent);
-    case 'topKeyPress':
-      /**
-       * If native `textInput` events are available, our goal is to make
-       * use of them. However, there is a special case: the spacebar key.
-       * In Webkit, preventing default on a spacebar `textInput` event
-       * cancels character insertion, but it *also* causes the browser
-       * to fall back to its default spacebar behavior of scrolling the
-       * page.
-       *
-       * Tracking at:
-       * https://code.google.com/p/chromium/issues/detail?id=355103
-       *
-       * To avoid this issue, use the keypress event as if no `textInput`
-       * event is available.
-       */
-      var which = nativeEvent.which;
-      if (which !== SPACEBAR_CODE) {
-        return null;
-      }
-
-      hasSpaceKeypress = true;
-      return SPACEBAR_CHAR;
-
-    case 'topTextInput':
-      // Record the characters to be added to the DOM.
-      var chars = nativeEvent.data;
-
-      // If it's a spacebar character, assume that we have already handled
-      // it at the keypress level and bail immediately. Android Chrome
-      // doesn't give us keycodes, so we need to blacklist it.
-      if (chars === SPACEBAR_CHAR && hasSpaceKeypress) {
-        return null;
-      }
-
-      return chars;
-
-    default:
-      // For other native event types, do nothing.
-      return null;
-  }
-}
-
-/**
- * For browsers that do not provide the `textInput` event, extract the
- * appropriate string to use for SyntheticInputEvent.
- *
- * @param {string} topLevelType Record from `BrowserEventConstants`.
- * @param {object} nativeEvent Native browser event.
- * @return {?string} The fallback string for this `beforeInput` event.
- */
-function getFallbackBeforeInputChars(topLevelType, nativeEvent) {
-  // If we are currently composing (IME) and using a fallback to do so,
-  // try to extract the composed characters from the fallback object.
-  // If composition event is available, we extract a string only at
-  // compositionevent, otherwise extract it at fallback events.
-  if (isComposing) {
-    if (topLevelType === 'topCompositionEnd' || !canUseCompositionEvent && isFallbackCompositionEnd(topLevelType, nativeEvent)) {
-      var chars = FallbackCompositionState_1.getData();
-      FallbackCompositionState_1.reset();
-      isComposing = false;
-      return chars;
-    }
-    return null;
-  }
-
-  switch (topLevelType) {
-    case 'topPaste':
-      // If a paste event occurs after a keypress, throw out the input
-      // chars. Paste events should not lead to BeforeInput events.
-      return null;
-    case 'topKeyPress':
-      /**
-       * As of v27, Firefox may fire keypress events even when no character
-       * will be inserted. A few possibilities:
-       *
-       * - `which` is `0`. Arrow keys, Esc key, etc.
-       *
-       * - `which` is the pressed key code, but no char is available.
-       *   Ex: 'AltGr + d` in Polish. There is no modified character for
-       *   this key combination and no character is inserted into the
-       *   document, but FF fires the keypress for char code `100` anyway.
-       *   No `input` event will occur.
-       *
-       * - `which` is the pressed key code, but a command combination is
-       *   being used. Ex: `Cmd+C`. No character is inserted, and no
-       *   `input` event will occur.
-       */
-      if (!isKeypressCommand(nativeEvent)) {
-        // IE fires the `keypress` event when a user types an emoji via
-        // Touch keyboard of Windows.  In such a case, the `char` property
-        // holds an emoji character like `\uD83D\uDE0A`.  Because its length
-        // is 2, the property `which` does not represent an emoji correctly.
-        // In such a case, we directly return the `char` property instead of
-        // using `which`.
-        if (nativeEvent.char && nativeEvent.char.length > 1) {
-          return nativeEvent.char;
-        } else if (nativeEvent.which) {
-          return String.fromCharCode(nativeEvent.which);
-        }
-      }
-      return null;
-    case 'topCompositionEnd':
-      return useFallbackCompositionData ? null : nativeEvent.data;
-    default:
-      return null;
-  }
-}
-
-/**
- * Extract a SyntheticInputEvent for `beforeInput`, based on either native
- * `textInput` or fallback behavior.
- *
- * @return {?object} A SyntheticInputEvent.
- */
-function extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-  var chars;
-
-  if (canUseTextInputEvent) {
-    chars = getNativeBeforeInputChars(topLevelType, nativeEvent);
-  } else {
-    chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);
-  }
-
-  // If no characters are being inserted, no BeforeInput event should
-  // be fired.
-  if (!chars) {
-    return null;
-  }
-
-  var event = SyntheticInputEvent_1.getPooled(eventTypes.beforeInput, targetInst, nativeEvent, nativeEventTarget);
-
-  event.data = chars;
-  EventPropagators_1.accumulateTwoPhaseDispatches(event);
-  return event;
-}
-
-/**
- * Create an `onBeforeInput` event to match
- * http://www.w3.org/TR/2013/WD-DOM-Level-3-Events-20131105/#events-inputevents.
- *
- * This event plugin is based on the native `textInput` event
- * available in Chrome, Safari, Opera, and IE. This event fires after
- * `onKeyPress` and `onCompositionEnd`, but before `onInput`.
- *
- * `beforeInput` is spec'd but not implemented in any browsers, and
- * the `input` event does not provide any useful information about what has
- * actually been added, contrary to the spec. Thus, `textInput` is the best
- * available event to identify the characters that have actually been inserted
- * into the target node.
- *
- * This plugin is also responsible for emitting `composition` events, thus
- * allowing us to share composition fallback code for both `beforeInput` and
- * `composition` event types.
- */
-var BeforeInputEventPlugin = {
-  eventTypes: eventTypes,
-
-  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-    return [extractCompositionEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget), extractBeforeInputEvent(topLevelType, targetInst, nativeEvent, nativeEventTarget)];
-  }
-};
-
-var BeforeInputEventPlugin_1 = BeforeInputEventPlugin;
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule isTextInputElement
- * 
- */
-
-/**
- * @see http://www.whatwg.org/specs/web-apps/current-work/multipage/the-input-element.html#input-type-attr-summary
- */
-
-var supportedInputTypes = {
-  color: true,
-  date: true,
-  datetime: true,
-  'datetime-local': true,
-  email: true,
-  month: true,
-  number: true,
-  password: true,
-  range: true,
-  search: true,
-  tel: true,
-  text: true,
-  time: true,
-  url: true,
-  week: true
-};
-
-function isTextInputElement(elem) {
-  var nodeName = elem && elem.nodeName && elem.nodeName.toLowerCase();
-
-  if (nodeName === 'input') {
-    return !!supportedInputTypes[elem.type];
-  }
-
-  if (nodeName === 'textarea') {
-    return true;
-  }
-
-  return false;
-}
-
-var isTextInputElement_1 = isTextInputElement;
-
-var eventTypes$1 = {
-  change: {
-    phasedRegistrationNames: {
-      bubbled: 'onChange',
-      captured: 'onChangeCapture'
-    },
-    dependencies: ['topBlur', 'topChange', 'topClick', 'topFocus', 'topInput', 'topKeyDown', 'topKeyUp', 'topSelectionChange']
-  }
-};
-
-function createAndAccumulateChangeEvent(inst, nativeEvent, target) {
-  var event = SyntheticEvent_1.getPooled(eventTypes$1.change, inst, nativeEvent, target);
-  event.type = 'change';
-  // Flag this event loop as needing state restore.
-  ReactControlledComponent_1.enqueueStateRestore(target);
-  EventPropagators_1.accumulateTwoPhaseDispatches(event);
-  return event;
-}
-/**
- * For IE shims
- */
-var activeElement = null;
-var activeElementInst = null;
-
-/**
- * SECTION: handle `change` event
- */
-function shouldUseChangeEvent(elem) {
-  var nodeName = elem.nodeName && elem.nodeName.toLowerCase();
-  return nodeName === 'select' || nodeName === 'input' && elem.type === 'file';
-}
-
-function manualDispatchChangeEvent(nativeEvent) {
-  var event = createAndAccumulateChangeEvent(activeElementInst, nativeEvent, getEventTarget_1(nativeEvent));
-
-  // If change and propertychange bubbled, we'd just bind to it like all the
-  // other events and have it go through ReactBrowserEventEmitter. Since it
-  // doesn't, we manually listen for the events and so we have to enqueue and
-  // process the abstract event manually.
-  //
-  // Batching is necessary here in order to ensure that all event handlers run
-  // before the next rerender (including event handlers attached to ancestor
-  // elements instead of directly on the input). Without this, controlled
-  // components don't work properly in conjunction with event bubbling because
-  // the component is rerendered and the value reverted before all the event
-  // handlers can run. See https://github.com/facebook/react/issues/708.
-  ReactGenericBatching_1.batchedUpdates(runEventInBatch, event);
-}
-
-function runEventInBatch(event) {
-  EventPluginHub_1.enqueueEvents(event);
-  EventPluginHub_1.processEventQueue(false);
-}
-
-function getInstIfValueChanged(targetInst) {
-  var targetNode = ReactDOMComponentTree_1.getNodeFromInstance(targetInst);
-  if (inputValueTracking_1.updateValueIfChanged(targetNode)) {
-    return targetInst;
-  }
-}
-
-function getTargetInstForChangeEvent(topLevelType, targetInst) {
-  if (topLevelType === 'topChange') {
-    return targetInst;
-  }
-}
-
-/**
- * SECTION: handle `input` event
- */
-var isInputEventSupported = false;
-if (ExecutionEnvironment.canUseDOM) {
-  // IE9 claims to support the input event but fails to trigger it when
-  // deleting text, so we ignore its input events.
-  isInputEventSupported = isEventSupported_1('input') && (!document.documentMode || document.documentMode > 9);
-}
-
-/**
- * (For IE <=9) Starts tracking propertychange events on the passed-in element
- * and override the value property so that we can distinguish user events from
- * value changes in JS.
- */
-function startWatchingForValueChange(target, targetInst) {
-  activeElement = target;
-  activeElementInst = targetInst;
-  activeElement.attachEvent('onpropertychange', handlePropertyChange);
-}
-
-/**
- * (For IE <=9) Removes the event listeners from the currently-tracked element,
- * if any exists.
- */
-function stopWatchingForValueChange() {
-  if (!activeElement) {
-    return;
-  }
-  activeElement.detachEvent('onpropertychange', handlePropertyChange);
-  activeElement = null;
-  activeElementInst = null;
-}
-
-/**
- * (For IE <=9) Handles a propertychange event, sending a `change` event if
- * the value of the active element has changed.
- */
-function handlePropertyChange(nativeEvent) {
-  if (nativeEvent.propertyName !== 'value') {
-    return;
-  }
-  if (getInstIfValueChanged(activeElementInst)) {
-    manualDispatchChangeEvent(nativeEvent);
-  }
-}
-
-function handleEventsForInputEventPolyfill(topLevelType, target, targetInst) {
-  if (topLevelType === 'topFocus') {
-    // In IE9, propertychange fires for most input events but is buggy and
-    // doesn't fire when text is deleted, but conveniently, selectionchange
-    // appears to fire in all of the remaining cases so we catch those and
-    // forward the event if the value has changed
-    // In either case, we don't want to call the event handler if the value
-    // is changed from JS so we redefine a setter for `.value` that updates
-    // our activeElementValue variable, allowing us to ignore those changes
-    //
-    // stopWatching() should be a noop here but we call it just in case we
-    // missed a blur event somehow.
-    stopWatchingForValueChange();
-    startWatchingForValueChange(target, targetInst);
-  } else if (topLevelType === 'topBlur') {
-    stopWatchingForValueChange();
-  }
-}
-
-// For IE8 and IE9.
-function getTargetInstForInputEventPolyfill(topLevelType, targetInst) {
-  if (topLevelType === 'topSelectionChange' || topLevelType === 'topKeyUp' || topLevelType === 'topKeyDown') {
-    // On the selectionchange event, the target is just document which isn't
-    // helpful for us so just check activeElement instead.
-    //
-    // 99% of the time, keydown and keyup aren't necessary. IE8 fails to fire
-    // propertychange on the first input event after setting `value` from a
-    // script and fires only keydown, keypress, keyup. Catching keyup usually
-    // gets it and catching keydown lets us fire an event for the first
-    // keystroke if user does a key repeat (it'll be a little delayed: right
-    // before the second keystroke). Other input methods (e.g., paste) seem to
-    // fire selectionchange normally.
-    return getInstIfValueChanged(activeElementInst);
-  }
-}
-
-/**
- * SECTION: handle `click` event
- */
-function shouldUseClickEvent(elem) {
-  // Use the `click` event to detect changes to checkbox and radio inputs.
-  // This approach works across all browsers, whereas `change` does not fire
-  // until `blur` in IE8.
-  var nodeName = elem.nodeName;
-  return nodeName && nodeName.toLowerCase() === 'input' && (elem.type === 'checkbox' || elem.type === 'radio');
-}
-
-function getTargetInstForClickEvent(topLevelType, targetInst) {
-  if (topLevelType === 'topClick') {
-    return getInstIfValueChanged(targetInst);
-  }
-}
-
-function getTargetInstForInputOrChangeEvent(topLevelType, targetInst) {
-  if (topLevelType === 'topInput' || topLevelType === 'topChange') {
-    return getInstIfValueChanged(targetInst);
-  }
-}
-
-function handleControlledInputBlur(inst, node) {
-  // TODO: In IE, inst is occasionally null. Why?
-  if (inst == null) {
-    return;
-  }
-
-  // Fiber and ReactDOM keep wrapper state in separate places
-  var state = inst._wrapperState || node._wrapperState;
-
-  if (!state || !state.controlled || node.type !== 'number') {
-    return;
-  }
-
-  // If controlled, assign the value attribute to the current value on blur
-  var value = '' + node.value;
-  if (node.getAttribute('value') !== value) {
-    node.setAttribute('value', value);
-  }
-}
-
-/**
- * This plugin creates an `onChange` event that normalizes change events
- * across form elements. This event fires at a time when it's possible to
- * change the element's value without seeing a flicker.
- *
- * Supported elements are:
- * - input (see `isTextInputElement`)
- * - textarea
- * - select
- */
-var ChangeEventPlugin = {
-  eventTypes: eventTypes$1,
-
-  _isInputEventSupported: isInputEventSupported,
-
-  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-    var targetNode = targetInst ? ReactDOMComponentTree_1.getNodeFromInstance(targetInst) : window;
-
-    var getTargetInstFunc, handleEventFunc;
-    if (shouldUseChangeEvent(targetNode)) {
-      getTargetInstFunc = getTargetInstForChangeEvent;
-    } else if (isTextInputElement_1(targetNode)) {
-      if (isInputEventSupported) {
-        getTargetInstFunc = getTargetInstForInputOrChangeEvent;
-      } else {
-        getTargetInstFunc = getTargetInstForInputEventPolyfill;
-        handleEventFunc = handleEventsForInputEventPolyfill;
-      }
-    } else if (shouldUseClickEvent(targetNode)) {
-      getTargetInstFunc = getTargetInstForClickEvent;
-    }
-
-    if (getTargetInstFunc) {
-      var inst = getTargetInstFunc(topLevelType, targetInst);
-      if (inst) {
-        var event = createAndAccumulateChangeEvent(inst, nativeEvent, nativeEventTarget);
-        return event;
-      }
-    }
-
-    if (handleEventFunc) {
-      handleEventFunc(topLevelType, targetNode, targetInst);
-    }
-
-    // When blurring, set the value attribute for number inputs
-    if (topLevelType === 'topBlur') {
-      handleControlledInputBlur(targetInst, targetNode);
-    }
-  }
-};
-
-var ChangeEventPlugin_1 = ChangeEventPlugin;
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule DOMEventPluginOrder
- */
-
-/**
- * Module that is injectable into `EventPluginHub`, that specifies a
- * deterministic ordering of `EventPlugin`s. A convenient way to reason about
- * plugins, without having to package every one of them. This is better than
- * having plugins be ordered in the same order that they are injected because
- * that ordering would be influenced by the packaging order.
- * `ResponderEventPlugin` must occur before `SimpleEventPlugin` so that
- * preventing default on events is convenient in `SimpleEventPlugin` handlers.
- */
-
-var DOMEventPluginOrder = ['ResponderEventPlugin', 'SimpleEventPlugin', 'TapEventPlugin', 'EnterLeaveEventPlugin', 'ChangeEventPlugin', 'SelectEventPlugin', 'BeforeInputEventPlugin'];
-
-var DOMEventPluginOrder_1 = DOMEventPluginOrder;
-
-/**
- * @interface UIEvent
- * @see http://www.w3.org/TR/DOM-Level-3-Events/
- */
-var UIEventInterface = {
-  view: function (event) {
-    if (event.view) {
-      return event.view;
-    }
-
-    var target = getEventTarget_1(event);
-    if (target.window === target) {
-      // target is a window object
-      return target;
-    }
-
-    var doc = target.ownerDocument;
-    // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
-    if (doc) {
-      return doc.defaultView || doc.parentWindow;
-    } else {
-      return window;
-    }
-  },
-  detail: function (event) {
-    return event.detail || 0;
-  }
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticEvent}
- */
-function SyntheticUIEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticEvent_1.augmentClass(SyntheticUIEvent, UIEventInterface);
-
-var SyntheticUIEvent_1 = SyntheticUIEvent;
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule getEventModifierState
- */
-
-/**
- * Translation from modifier key to the associated property in the event.
- * @see http://www.w3.org/TR/DOM-Level-3-Events/#keys-Modifiers
- */
-
-var modifierKeyToProp = {
-  Alt: 'altKey',
-  Control: 'ctrlKey',
-  Meta: 'metaKey',
-  Shift: 'shiftKey'
-};
-
-// IE8 does not implement getModifierState so we simply map it to the only
-// modifier keys exposed by the event itself, does not support Lock-keys.
-// Currently, all major browsers except Chrome seems to support Lock-keys.
-function modifierStateGetter(keyArg) {
-  var syntheticEvent = this;
-  var nativeEvent = syntheticEvent.nativeEvent;
-  if (nativeEvent.getModifierState) {
-    return nativeEvent.getModifierState(keyArg);
-  }
-  var keyProp = modifierKeyToProp[keyArg];
-  return keyProp ? !!nativeEvent[keyProp] : false;
-}
-
-function getEventModifierState(nativeEvent) {
-  return modifierStateGetter;
-}
-
-var getEventModifierState_1 = getEventModifierState;
-
-/**
- * @interface MouseEvent
- * @see http://www.w3.org/TR/DOM-Level-3-Events/
- */
-var MouseEventInterface = {
-  screenX: null,
-  screenY: null,
-  clientX: null,
-  clientY: null,
-  pageX: null,
-  pageY: null,
-  ctrlKey: null,
-  shiftKey: null,
-  altKey: null,
-  metaKey: null,
-  getModifierState: getEventModifierState_1,
-  button: null,
-  buttons: null,
-  relatedTarget: function (event) {
-    return event.relatedTarget || (event.fromElement === event.srcElement ? event.toElement : event.fromElement);
-  }
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticUIEvent}
- */
-function SyntheticMouseEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticUIEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticUIEvent_1.augmentClass(SyntheticMouseEvent, MouseEventInterface);
-
-var SyntheticMouseEvent_1 = SyntheticMouseEvent;
-
-var eventTypes$2 = {
-  mouseEnter: {
-    registrationName: 'onMouseEnter',
-    dependencies: ['topMouseOut', 'topMouseOver']
-  },
-  mouseLeave: {
-    registrationName: 'onMouseLeave',
-    dependencies: ['topMouseOut', 'topMouseOver']
-  }
-};
-
-var EnterLeaveEventPlugin = {
-  eventTypes: eventTypes$2,
-
-  /**
-   * For almost every interaction we care about, there will be both a top-level
-   * `mouseover` and `mouseout` event that occurs. Only use `mouseout` so that
-   * we do not extract duplicate events. However, moving the mouse into the
-   * browser from outside will not fire a `mouseout` event. In this case, we use
-   * the `mouseover` top-level event.
-   */
-  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-    if (topLevelType === 'topMouseOver' && (nativeEvent.relatedTarget || nativeEvent.fromElement)) {
-      return null;
-    }
-    if (topLevelType !== 'topMouseOut' && topLevelType !== 'topMouseOver') {
-      // Must not be a mouse in or mouse out - ignoring.
-      return null;
-    }
-
-    var win;
-    if (nativeEventTarget.window === nativeEventTarget) {
-      // `nativeEventTarget` is probably a window object.
-      win = nativeEventTarget;
-    } else {
-      // TODO: Figure out why `ownerDocument` is sometimes undefined in IE8.
-      var doc = nativeEventTarget.ownerDocument;
-      if (doc) {
-        win = doc.defaultView || doc.parentWindow;
-      } else {
-        win = window;
-      }
-    }
-
-    var from;
-    var to;
-    if (topLevelType === 'topMouseOut') {
-      from = targetInst;
-      var related = nativeEvent.relatedTarget || nativeEvent.toElement;
-      to = related ? ReactDOMComponentTree_1.getClosestInstanceFromNode(related) : null;
-    } else {
-      // Moving to a node from outside the window.
-      from = null;
-      to = targetInst;
-    }
-
-    if (from === to) {
-      // Nothing pertains to our managed components.
-      return null;
-    }
-
-    var fromNode = from == null ? win : ReactDOMComponentTree_1.getNodeFromInstance(from);
-    var toNode = to == null ? win : ReactDOMComponentTree_1.getNodeFromInstance(to);
-
-    var leave = SyntheticMouseEvent_1.getPooled(eventTypes$2.mouseLeave, from, nativeEvent, nativeEventTarget);
-    leave.type = 'mouseleave';
-    leave.target = fromNode;
-    leave.relatedTarget = toNode;
-
-    var enter = SyntheticMouseEvent_1.getPooled(eventTypes$2.mouseEnter, to, nativeEvent, nativeEventTarget);
-    enter.type = 'mouseenter';
-    enter.target = toNode;
-    enter.relatedTarget = fromNode;
-
-    EventPropagators_1.accumulateEnterLeaveDispatches(leave, enter, from, to);
-
-    return [leave, enter];
-  }
-};
-
-var EnterLeaveEventPlugin_1 = EnterLeaveEventPlugin;
-
-var DOCUMENT_NODE$2 = HTMLNodeType_1.DOCUMENT_NODE;
-
-
-
-
-
-var skipSelectionChangeEvent = ExecutionEnvironment.canUseDOM && 'documentMode' in document && document.documentMode <= 11;
-
-var eventTypes$3 = {
-  select: {
-    phasedRegistrationNames: {
-      bubbled: 'onSelect',
-      captured: 'onSelectCapture'
-    },
-    dependencies: ['topBlur', 'topContextMenu', 'topFocus', 'topKeyDown', 'topKeyUp', 'topMouseDown', 'topMouseUp', 'topSelectionChange']
-  }
-};
-
-var activeElement$1 = null;
-var activeElementInst$1 = null;
-var lastSelection = null;
-var mouseDown = false;
-
-// Track whether all listeners exists for this plugin. If none exist, we do
-// not extract events. See #3639.
-var isListeningToAllDependencies = ReactBrowserEventEmitter_1.isListeningToAllDependencies;
-
-/**
- * Get an object which is a unique representation of the current selection.
- *
- * The return value will not be consistent across nodes or browsers, but
- * two identical selections on the same node will return identical objects.
- *
- * @param {DOMElement} node
- * @return {object}
- */
-function getSelection(node) {
-  if ('selectionStart' in node && ReactInputSelection_1.hasSelectionCapabilities(node)) {
-    return {
-      start: node.selectionStart,
-      end: node.selectionEnd
-    };
-  } else if (window.getSelection) {
-    var selection = window.getSelection();
-    return {
-      anchorNode: selection.anchorNode,
-      anchorOffset: selection.anchorOffset,
-      focusNode: selection.focusNode,
-      focusOffset: selection.focusOffset
-    };
-  }
-}
-
-/**
- * Poll selection to see whether it's changed.
- *
- * @param {object} nativeEvent
- * @return {?SyntheticEvent}
- */
-function constructSelectEvent(nativeEvent, nativeEventTarget) {
-  // Ensure we have the right element, and that the user is not dragging a
-  // selection (this matches native `select` event behavior). In HTML5, select
-  // fires only on input and textarea thus if there's no focused element we
-  // won't dispatch.
-  if (mouseDown || activeElement$1 == null || activeElement$1 !== getActiveElement()) {
-    return null;
-  }
-
-  // Only fire when selection has actually changed.
-  var currentSelection = getSelection(activeElement$1);
-  if (!lastSelection || !shallowEqual(lastSelection, currentSelection)) {
-    lastSelection = currentSelection;
-
-    var syntheticEvent = SyntheticEvent_1.getPooled(eventTypes$3.select, activeElementInst$1, nativeEvent, nativeEventTarget);
-
-    syntheticEvent.type = 'select';
-    syntheticEvent.target = activeElement$1;
-
-    EventPropagators_1.accumulateTwoPhaseDispatches(syntheticEvent);
-
-    return syntheticEvent;
-  }
-
-  return null;
-}
-
-/**
- * This plugin creates an `onSelect` event that normalizes select events
- * across form elements.
- *
- * Supported elements are:
- * - input (see `isTextInputElement`)
- * - textarea
- * - contentEditable
- *
- * This differs from native browser implementations in the following ways:
- * - Fires on contentEditable fields as well as inputs.
- * - Fires for collapsed selection.
- * - Fires after user input.
- */
-var SelectEventPlugin = {
-  eventTypes: eventTypes$3,
-
-  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-    var doc = nativeEventTarget.window === nativeEventTarget ? nativeEventTarget.document : nativeEventTarget.nodeType === DOCUMENT_NODE$2 ? nativeEventTarget : nativeEventTarget.ownerDocument;
-    if (!doc || !isListeningToAllDependencies('onSelect', doc)) {
-      return null;
-    }
-
-    var targetNode = targetInst ? ReactDOMComponentTree_1.getNodeFromInstance(targetInst) : window;
-
-    switch (topLevelType) {
-      // Track the input node that has focus.
-      case 'topFocus':
-        if (isTextInputElement_1(targetNode) || targetNode.contentEditable === 'true') {
-          activeElement$1 = targetNode;
-          activeElementInst$1 = targetInst;
-          lastSelection = null;
-        }
-        break;
-      case 'topBlur':
-        activeElement$1 = null;
-        activeElementInst$1 = null;
-        lastSelection = null;
-        break;
-      // Don't fire the event while the user is dragging. This matches the
-      // semantics of the native select event.
-      case 'topMouseDown':
-        mouseDown = true;
-        break;
-      case 'topContextMenu':
-      case 'topMouseUp':
-        mouseDown = false;
-        return constructSelectEvent(nativeEvent, nativeEventTarget);
-      // Chrome and IE fire non-standard event when selection is changed (and
-      // sometimes when it hasn't). IE's event fires out of order with respect
-      // to key and input events on deletion, so we discard it.
-      //
-      // Firefox doesn't support selectionchange, so check selection status
-      // after each key entry. The selection changes after keydown and before
-      // keyup, but we check on keydown as well in the case of holding down a
-      // key, when multiple keydown events are fired but only one keyup is.
-      // This is also our approach for IE handling, for the reason above.
-      case 'topSelectionChange':
-        if (skipSelectionChangeEvent) {
-          break;
-        }
-      // falls through
-      case 'topKeyDown':
-      case 'topKeyUp':
-        return constructSelectEvent(nativeEvent, nativeEventTarget);
-    }
-
-    return null;
-  }
-};
-
-var SelectEventPlugin_1 = SelectEventPlugin;
-
-/**
- * @interface Event
- * @see http://www.w3.org/TR/css3-animations/#AnimationEvent-interface
- * @see https://developer.mozilla.org/en-US/docs/Web/API/AnimationEvent
- */
-var AnimationEventInterface = {
-  animationName: null,
-  elapsedTime: null,
-  pseudoElement: null
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticEvent}
- */
-function SyntheticAnimationEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticEvent_1.augmentClass(SyntheticAnimationEvent, AnimationEventInterface);
-
-var SyntheticAnimationEvent_1 = SyntheticAnimationEvent;
-
-/**
- * @interface Event
- * @see http://www.w3.org/TR/clipboard-apis/
- */
-var ClipboardEventInterface = {
-  clipboardData: function (event) {
-    return 'clipboardData' in event ? event.clipboardData : window.clipboardData;
-  }
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticUIEvent}
- */
-function SyntheticClipboardEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticEvent_1.augmentClass(SyntheticClipboardEvent, ClipboardEventInterface);
-
-var SyntheticClipboardEvent_1 = SyntheticClipboardEvent;
-
-/**
- * @interface FocusEvent
- * @see http://www.w3.org/TR/DOM-Level-3-Events/
- */
-var FocusEventInterface = {
-  relatedTarget: null
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticUIEvent}
- */
-function SyntheticFocusEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticUIEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticUIEvent_1.augmentClass(SyntheticFocusEvent, FocusEventInterface);
-
-var SyntheticFocusEvent_1 = SyntheticFocusEvent;
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @providesModule getEventCharCode
- */
-
-/**
- * `charCode` represents the actual "character code" and is safe to use with
- * `String.fromCharCode`. As such, only keys that correspond to printable
- * characters produce a valid `charCode`, the only exception to this is Enter.
- * The Tab-key is considered non-printable and does not have a `charCode`,
- * presumably because it does not produce a tab-character in browsers.
- *
- * @param {object} nativeEvent Native browser event.
- * @return {number} Normalized `charCode` property.
- */
-
-function getEventCharCode(nativeEvent) {
-  var charCode;
-  var keyCode = nativeEvent.keyCode;
-
-  if ('charCode' in nativeEvent) {
-    charCode = nativeEvent.charCode;
-
-    // FF does not set `charCode` for the Enter-key, check against `keyCode`.
-    if (charCode === 0 && keyCode === 13) {
-      charCode = 13;
-    }
-  } else {
-    // IE8 does not implement `charCode`, but `keyCode` has the correct value.
-    charCode = keyCode;
-  }
-
-  // Some non-printable keys are reported in `charCode`/`keyCode`, discard them.
-  // Must not discard the (non-)printable Enter-key.
-  if (charCode >= 32 || charCode === 13) {
-    return charCode;
-  }
-
-  return 0;
-}
-
-var getEventCharCode_1 = getEventCharCode;
-
-/**
- * Normalization of deprecated HTML5 `key` values
- * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
- */
-var normalizeKey = {
-  Esc: 'Escape',
-  Spacebar: ' ',
-  Left: 'ArrowLeft',
-  Up: 'ArrowUp',
-  Right: 'ArrowRight',
-  Down: 'ArrowDown',
-  Del: 'Delete',
-  Win: 'OS',
-  Menu: 'ContextMenu',
-  Apps: 'ContextMenu',
-  Scroll: 'ScrollLock',
-  MozPrintableKey: 'Unidentified'
-};
-
-/**
- * Translation from legacy `keyCode` to HTML5 `key`
- * Only special keys supported, all others depend on keyboard layout or browser
- * @see https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent#Key_names
- */
-var translateToKey = {
-  8: 'Backspace',
-  9: 'Tab',
-  12: 'Clear',
-  13: 'Enter',
-  16: 'Shift',
-  17: 'Control',
-  18: 'Alt',
-  19: 'Pause',
-  20: 'CapsLock',
-  27: 'Escape',
-  32: ' ',
-  33: 'PageUp',
-  34: 'PageDown',
-  35: 'End',
-  36: 'Home',
-  37: 'ArrowLeft',
-  38: 'ArrowUp',
-  39: 'ArrowRight',
-  40: 'ArrowDown',
-  45: 'Insert',
-  46: 'Delete',
-  112: 'F1',
-  113: 'F2',
-  114: 'F3',
-  115: 'F4',
-  116: 'F5',
-  117: 'F6',
-  118: 'F7',
-  119: 'F8',
-  120: 'F9',
-  121: 'F10',
-  122: 'F11',
-  123: 'F12',
-  144: 'NumLock',
-  145: 'ScrollLock',
-  224: 'Meta'
-};
-
-/**
- * @param {object} nativeEvent Native browser event.
- * @return {string} Normalized `key` property.
- */
-function getEventKey(nativeEvent) {
-  if (nativeEvent.key) {
-    // Normalize inconsistent values reported by browsers due to
-    // implementations of a working draft specification.
-
-    // FireFox implements `key` but returns `MozPrintableKey` for all
-    // printable characters (normalized to `Unidentified`), ignore it.
-    var key = normalizeKey[nativeEvent.key] || nativeEvent.key;
-    if (key !== 'Unidentified') {
-      return key;
-    }
-  }
-
-  // Browser does not implement `key`, polyfill as much of it as we can.
-  if (nativeEvent.type === 'keypress') {
-    var charCode = getEventCharCode_1(nativeEvent);
-
-    // The enter-key is technically both printable and non-printable and can
-    // thus be captured by `keypress`, no other non-printable key should.
-    return charCode === 13 ? 'Enter' : String.fromCharCode(charCode);
-  }
-  if (nativeEvent.type === 'keydown' || nativeEvent.type === 'keyup') {
-    // While user keyboard layout determines the actual meaning of each
-    // `keyCode` value, almost all function keys have a universal value.
-    return translateToKey[nativeEvent.keyCode] || 'Unidentified';
-  }
-  return '';
-}
-
-var getEventKey_1 = getEventKey;
-
-/**
- * @interface KeyboardEvent
- * @see http://www.w3.org/TR/DOM-Level-3-Events/
- */
-var KeyboardEventInterface = {
-  key: getEventKey_1,
-  location: null,
-  ctrlKey: null,
-  shiftKey: null,
-  altKey: null,
-  metaKey: null,
-  repeat: null,
-  locale: null,
-  getModifierState: getEventModifierState_1,
-  // Legacy Interface
-  charCode: function (event) {
-    // `charCode` is the result of a KeyPress event and represents the value of
-    // the actual printable character.
-
-    // KeyPress is deprecated, but its replacement is not yet final and not
-    // implemented in any major browser. Only KeyPress has charCode.
-    if (event.type === 'keypress') {
-      return getEventCharCode_1(event);
-    }
-    return 0;
-  },
-  keyCode: function (event) {
-    // `keyCode` is the result of a KeyDown/Up event and represents the value of
-    // physical keyboard key.
-
-    // The actual meaning of the value depends on the users' keyboard layout
-    // which cannot be detected. Assuming that it is a US keyboard layout
-    // provides a surprisingly accurate mapping for US and European users.
-    // Due to this, it is left to the user to implement at this time.
-    if (event.type === 'keydown' || event.type === 'keyup') {
-      return event.keyCode;
-    }
-    return 0;
-  },
-  which: function (event) {
-    // `which` is an alias for either `keyCode` or `charCode` depending on the
-    // type of the event.
-    if (event.type === 'keypress') {
-      return getEventCharCode_1(event);
-    }
-    if (event.type === 'keydown' || event.type === 'keyup') {
-      return event.keyCode;
-    }
-    return 0;
-  }
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticUIEvent}
- */
-function SyntheticKeyboardEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticUIEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticUIEvent_1.augmentClass(SyntheticKeyboardEvent, KeyboardEventInterface);
-
-var SyntheticKeyboardEvent_1 = SyntheticKeyboardEvent;
-
-/**
- * @interface DragEvent
- * @see http://www.w3.org/TR/DOM-Level-3-Events/
- */
-var DragEventInterface = {
-  dataTransfer: null
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticUIEvent}
- */
-function SyntheticDragEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticMouseEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticMouseEvent_1.augmentClass(SyntheticDragEvent, DragEventInterface);
-
-var SyntheticDragEvent_1 = SyntheticDragEvent;
-
-/**
- * @interface TouchEvent
- * @see http://www.w3.org/TR/touch-events/
- */
-var TouchEventInterface = {
-  touches: null,
-  targetTouches: null,
-  changedTouches: null,
-  altKey: null,
-  metaKey: null,
-  ctrlKey: null,
-  shiftKey: null,
-  getModifierState: getEventModifierState_1
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticUIEvent}
- */
-function SyntheticTouchEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticUIEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticUIEvent_1.augmentClass(SyntheticTouchEvent, TouchEventInterface);
-
-var SyntheticTouchEvent_1 = SyntheticTouchEvent;
-
-/**
- * @interface Event
- * @see http://www.w3.org/TR/2009/WD-css3-transitions-20090320/#transition-events-
- * @see https://developer.mozilla.org/en-US/docs/Web/API/TransitionEvent
- */
-var TransitionEventInterface = {
-  propertyName: null,
-  elapsedTime: null,
-  pseudoElement: null
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticEvent}
- */
-function SyntheticTransitionEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticEvent_1.augmentClass(SyntheticTransitionEvent, TransitionEventInterface);
-
-var SyntheticTransitionEvent_1 = SyntheticTransitionEvent;
-
-/**
- * @interface WheelEvent
- * @see http://www.w3.org/TR/DOM-Level-3-Events/
- */
-var WheelEventInterface = {
-  deltaX: function (event) {
-    return 'deltaX' in event ? event.deltaX : // Fallback to `wheelDeltaX` for Webkit and normalize (right is positive).
-    'wheelDeltaX' in event ? -event.wheelDeltaX : 0;
-  },
-  deltaY: function (event) {
-    return 'deltaY' in event ? event.deltaY : // Fallback to `wheelDeltaY` for Webkit and normalize (down is positive).
-    'wheelDeltaY' in event ? -event.wheelDeltaY : // Fallback to `wheelDelta` for IE<9 and normalize (down is positive).
-    'wheelDelta' in event ? -event.wheelDelta : 0;
-  },
-  deltaZ: null,
-
-  // Browsers without "deltaMode" is reporting in raw wheel delta where one
-  // notch on the scroll is always +/- 120, roughly equivalent to pixels.
-  // A good approximation of DOM_DELTA_LINE (1) is 5% of viewport size or
-  // ~40 pixels, for DOM_DELTA_SCREEN (2) it is 87.5% of viewport size.
-  deltaMode: null
-};
-
-/**
- * @param {object} dispatchConfig Configuration used to dispatch this event.
- * @param {string} dispatchMarker Marker identifying the event target.
- * @param {object} nativeEvent Native browser event.
- * @extends {SyntheticMouseEvent}
- */
-function SyntheticWheelEvent(dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget) {
-  return SyntheticMouseEvent_1.call(this, dispatchConfig, dispatchMarker, nativeEvent, nativeEventTarget);
-}
-
-SyntheticMouseEvent_1.augmentClass(SyntheticWheelEvent, WheelEventInterface);
-
-var SyntheticWheelEvent_1 = SyntheticWheelEvent;
-
-/**
- * Turns
- * ['abort', ...]
- * into
- * eventTypes = {
- *   'abort': {
- *     phasedRegistrationNames: {
- *       bubbled: 'onAbort',
- *       captured: 'onAbortCapture',
- *     },
- *     dependencies: ['topAbort'],
- *   },
- *   ...
- * };
- * topLevelEventsToDispatchConfig = {
- *   'topAbort': { sameConfig }
- * };
- */
-var eventTypes$4 = {};
-var topLevelEventsToDispatchConfig = {};
-['abort', 'animationEnd', 'animationIteration', 'animationStart', 'blur', 'cancel', 'canPlay', 'canPlayThrough', 'click', 'close', 'contextMenu', 'copy', 'cut', 'doubleClick', 'drag', 'dragEnd', 'dragEnter', 'dragExit', 'dragLeave', 'dragOver', 'dragStart', 'drop', 'durationChange', 'emptied', 'encrypted', 'ended', 'error', 'focus', 'input', 'invalid', 'keyDown', 'keyPress', 'keyUp', 'load', 'loadedData', 'loadedMetadata', 'loadStart', 'mouseDown', 'mouseMove', 'mouseOut', 'mouseOver', 'mouseUp', 'paste', 'pause', 'play', 'playing', 'progress', 'rateChange', 'reset', 'scroll', 'seeked', 'seeking', 'stalled', 'submit', 'suspend', 'timeUpdate', 'toggle', 'touchCancel', 'touchEnd', 'touchMove', 'touchStart', 'transitionEnd', 'volumeChange', 'waiting', 'wheel'].forEach(function (event) {
-  var capitalizedEvent = event[0].toUpperCase() + event.slice(1);
-  var onEvent = 'on' + capitalizedEvent;
-  var topEvent = 'top' + capitalizedEvent;
-
-  var type = {
-    phasedRegistrationNames: {
-      bubbled: onEvent,
-      captured: onEvent + 'Capture'
-    },
-    dependencies: [topEvent]
-  };
-  eventTypes$4[event] = type;
-  topLevelEventsToDispatchConfig[topEvent] = type;
-});
-
-var SimpleEventPlugin = {
-  eventTypes: eventTypes$4,
-
-  extractEvents: function (topLevelType, targetInst, nativeEvent, nativeEventTarget) {
-    var dispatchConfig = topLevelEventsToDispatchConfig[topLevelType];
-    if (!dispatchConfig) {
-      return null;
-    }
-    var EventConstructor;
-    switch (topLevelType) {
-      case 'topAbort':
-      case 'topCancel':
-      case 'topCanPlay':
-      case 'topCanPlayThrough':
-      case 'topClose':
-      case 'topDurationChange':
-      case 'topEmptied':
-      case 'topEncrypted':
-      case 'topEnded':
-      case 'topError':
-      case 'topInput':
-      case 'topInvalid':
-      case 'topLoad':
-      case 'topLoadedData':
-      case 'topLoadedMetadata':
-      case 'topLoadStart':
-      case 'topPause':
-      case 'topPlay':
-      case 'topPlaying':
-      case 'topProgress':
-      case 'topRateChange':
-      case 'topReset':
-      case 'topSeeked':
-      case 'topSeeking':
-      case 'topStalled':
-      case 'topSubmit':
-      case 'topSuspend':
-      case 'topTimeUpdate':
-      case 'topToggle':
-      case 'topVolumeChange':
-      case 'topWaiting':
-        // HTML Events
-        // @see http://www.w3.org/TR/html5/index.html#events-0
-        EventConstructor = SyntheticEvent_1;
-        break;
-      case 'topKeyPress':
-        // Firefox creates a keypress event for function keys too. This removes
-        // the unwanted keypress events. Enter is however both printable and
-        // non-printable. One would expect Tab to be as well (but it isn't).
-        if (getEventCharCode_1(nativeEvent) === 0) {
-          return null;
-        }
-      /* falls through */
-      case 'topKeyDown':
-      case 'topKeyUp':
-        EventConstructor = SyntheticKeyboardEvent_1;
-        break;
-      case 'topBlur':
-      case 'topFocus':
-        EventConstructor = SyntheticFocusEvent_1;
-        break;
-      case 'topClick':
-        // Firefox creates a click event on right mouse clicks. This removes the
-        // unwanted click events.
-        if (nativeEvent.button === 2) {
-          return null;
-        }
-      /* falls through */
-      case 'topDoubleClick':
-      case 'topMouseDown':
-      case 'topMouseMove':
-      case 'topMouseUp':
-      // TODO: Disabled elements should not respond to mouse events
-      /* falls through */
-      case 'topMouseOut':
-      case 'topMouseOver':
-      case 'topContextMenu':
-        EventConstructor = SyntheticMouseEvent_1;
-        break;
-      case 'topDrag':
-      case 'topDragEnd':
-      case 'topDragEnter':
-      case 'topDragExit':
-      case 'topDragLeave':
-      case 'topDragOver':
-      case 'topDragStart':
-      case 'topDrop':
-        EventConstructor = SyntheticDragEvent_1;
-        break;
-      case 'topTouchCancel':
-      case 'topTouchEnd':
-      case 'topTouchMove':
-      case 'topTouchStart':
-        EventConstructor = SyntheticTouchEvent_1;
-        break;
-      case 'topAnimationEnd':
-      case 'topAnimationIteration':
-      case 'topAnimationStart':
-        EventConstructor = SyntheticAnimationEvent_1;
-        break;
-      case 'topTransitionEnd':
-        EventConstructor = SyntheticTransitionEvent_1;
-        break;
-      case 'topScroll':
-        EventConstructor = SyntheticUIEvent_1;
-        break;
-      case 'topWheel':
-        EventConstructor = SyntheticWheelEvent_1;
-        break;
-      case 'topCopy':
-      case 'topCut':
-      case 'topPaste':
-        EventConstructor = SyntheticClipboardEvent_1;
-        break;
-    }
-    !EventConstructor ? invariant(false, 'SimpleEventPlugin: Unhandled event type, `%s`.', topLevelType) : void 0;
-    var event = EventConstructor.getPooled(dispatchConfig, targetInst, nativeEvent, nativeEventTarget);
-    EventPropagators_1.accumulateTwoPhaseDispatches(event);
-    return event;
-  }
-};
-
-var SimpleEventPlugin_1 = SimpleEventPlugin;
-
-ReactDOMEventListener_1.setHandleTopLevel(ReactBrowserEventEmitter_1.handleTopLevel);
-
-/**
- * Inject modules for resolving DOM hierarchy and plugin ordering.
- */
-EventPluginHub_1.injection.injectEventPluginOrder(DOMEventPluginOrder_1);
-EventPluginUtils_1.injection.injectComponentTree(ReactDOMComponentTree_1);
-
-/**
- * Some important event plugins included by default (without having to require
- * them).
- */
-EventPluginHub_1.injection.injectEventPluginsByName({
-  SimpleEventPlugin: SimpleEventPlugin_1,
-  EnterLeaveEventPlugin: EnterLeaveEventPlugin_1,
-  ChangeEventPlugin: ChangeEventPlugin_1,
-  SelectEventPlugin: SelectEventPlugin_1,
-  BeforeInputEventPlugin: BeforeInputEventPlugin_1
-});
-
-var MUST_USE_PROPERTY = DOMProperty_1.injection.MUST_USE_PROPERTY;
-var HAS_BOOLEAN_VALUE = DOMProperty_1.injection.HAS_BOOLEAN_VALUE;
-var HAS_NUMERIC_VALUE = DOMProperty_1.injection.HAS_NUMERIC_VALUE;
-var HAS_POSITIVE_NUMERIC_VALUE = DOMProperty_1.injection.HAS_POSITIVE_NUMERIC_VALUE;
-var HAS_OVERLOADED_BOOLEAN_VALUE = DOMProperty_1.injection.HAS_OVERLOADED_BOOLEAN_VALUE;
-var HAS_STRING_BOOLEAN_VALUE = DOMProperty_1.injection.HAS_STRING_BOOLEAN_VALUE;
-
-var HTMLDOMPropertyConfig = {
-  // When adding attributes to this list, be sure to also add them to
-  // the `possibleStandardNames` module to ensure casing and incorrect
-  // name warnings.
-  Properties: {
-    allowFullScreen: HAS_BOOLEAN_VALUE,
-    // IE only true/false iFrame attribute
-    // https://msdn.microsoft.com/en-us/library/ms533072(v=vs.85).aspx
-    allowTransparency: HAS_STRING_BOOLEAN_VALUE,
-    // specifies target context for links with `preload` type
-    async: HAS_BOOLEAN_VALUE,
-    // autoFocus is polyfilled/normalized by AutoFocusUtils
-    // autoFocus: HAS_BOOLEAN_VALUE,
-    autoPlay: HAS_BOOLEAN_VALUE,
-    capture: HAS_BOOLEAN_VALUE,
-    checked: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
-    cols: HAS_POSITIVE_NUMERIC_VALUE,
-    contentEditable: HAS_STRING_BOOLEAN_VALUE,
-    controls: HAS_BOOLEAN_VALUE,
-    'default': HAS_BOOLEAN_VALUE,
-    defer: HAS_BOOLEAN_VALUE,
-    disabled: HAS_BOOLEAN_VALUE,
-    download: HAS_OVERLOADED_BOOLEAN_VALUE,
-    draggable: HAS_STRING_BOOLEAN_VALUE,
-    formNoValidate: HAS_BOOLEAN_VALUE,
-    hidden: HAS_BOOLEAN_VALUE,
-    loop: HAS_BOOLEAN_VALUE,
-    // Caution; `option.selected` is not updated if `select.multiple` is
-    // disabled with `removeAttribute`.
-    multiple: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
-    muted: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
-    noValidate: HAS_BOOLEAN_VALUE,
-    open: HAS_BOOLEAN_VALUE,
-    playsInline: HAS_BOOLEAN_VALUE,
-    readOnly: HAS_BOOLEAN_VALUE,
-    required: HAS_BOOLEAN_VALUE,
-    reversed: HAS_BOOLEAN_VALUE,
-    rows: HAS_POSITIVE_NUMERIC_VALUE,
-    rowSpan: HAS_NUMERIC_VALUE,
-    scoped: HAS_BOOLEAN_VALUE,
-    seamless: HAS_BOOLEAN_VALUE,
-    selected: MUST_USE_PROPERTY | HAS_BOOLEAN_VALUE,
-    size: HAS_POSITIVE_NUMERIC_VALUE,
-    start: HAS_NUMERIC_VALUE,
-    // support for projecting regular DOM Elements via V1 named slots ( shadow dom )
-    span: HAS_POSITIVE_NUMERIC_VALUE,
-    spellCheck: HAS_STRING_BOOLEAN_VALUE,
-    // Style must be explicitly set in the attribute list. React components
-    // expect a style object
-    style: 0,
-    // itemScope is for for Microdata support.
-    // See http://schema.org/docs/gs.html
-    itemScope: HAS_BOOLEAN_VALUE,
-    // These attributes must stay in the white-list because they have
-    // different attribute names (see DOMAttributeNames below)
-    acceptCharset: 0,
-    className: 0,
-    htmlFor: 0,
-    httpEquiv: 0,
-    // Attributes with mutation methods must be specified in the whitelist
-    // Set the string boolean flag to allow the behavior
-    value: HAS_STRING_BOOLEAN_VALUE
-  },
-  DOMAttributeNames: {
-    acceptCharset: 'accept-charset',
-    className: 'class',
-    htmlFor: 'for',
-    httpEquiv: 'http-equiv'
-  },
-  DOMMutationMethods: {
-    value: function (node, value) {
-      if (value == null) {
-        return node.removeAttribute('value');
-      }
-
-      // Number inputs get special treatment due to some edge cases in
-      // Chrome. Let everything else assign the value attribute as normal.
-      // https://github.com/facebook/react/issues/7253#issuecomment-236074326
-      if (node.type !== 'number' || node.hasAttribute('value') === false) {
-        node.setAttribute('value', '' + value);
-      } else if (node.validity && !node.validity.badInput && node.ownerDocument.activeElement !== node) {
-        // Don't assign an attribute if validation reports bad
-        // input. Chrome will clear the value. Additionally, don't
-        // operate on inputs that have focus, otherwise Chrome might
-        // strip off trailing decimal places and cause the user's
-        // cursor position to jump to the beginning of the input.
-        //
-        // In ReactDOMInput, we have an onBlur event that will trigger
-        // this function again when focus is lost.
-        node.setAttribute('value', '' + value);
-      }
-    }
-  }
-};
-
-var HTMLDOMPropertyConfig_1 = HTMLDOMPropertyConfig;
-
-var HAS_STRING_BOOLEAN_VALUE$1 = DOMProperty_1.injection.HAS_STRING_BOOLEAN_VALUE;
-
-
-var NS = {
-  xlink: 'http://www.w3.org/1999/xlink',
-  xml: 'http://www.w3.org/XML/1998/namespace'
-};
-
-/**
- * This is a list of all SVG attributes that need special casing,
- * namespacing, or boolean value assignment.
- *
- * When adding attributes to this list, be sure to also add them to
- * the `possibleStandardNames` module to ensure casing and incorrect
- * name warnings.
- *
- * SVG Attributes List:
- * https://www.w3.org/TR/SVG/attindex.html
- * SMIL Spec:
- * https://www.w3.org/TR/smil
- */
-var ATTRS = ['accent-height', 'alignment-baseline', 'arabic-form', 'baseline-shift', 'cap-height', 'clip-path', 'clip-rule', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'dominant-baseline', 'enable-background', 'fill-opacity', 'fill-rule', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'glyph-name', 'glyph-orientation-horizontal', 'glyph-orientation-vertical', 'horiz-adv-x', 'horiz-origin-x', 'image-rendering', 'letter-spacing', 'lighting-color', 'marker-end', 'marker-mid', 'marker-start', 'overline-position', 'overline-thickness', 'paint-order', 'panose-1', 'pointer-events', 'rendering-intent', 'shape-rendering', 'stop-color', 'stop-opacity', 'strikethrough-position', 'strikethrough-thickness', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke-width', 'text-anchor', 'text-decoration', 'text-rendering', 'underline-position', 'underline-thickness', 'unicode-bidi', 'unicode-range', 'units-per-em', 'v-alphabetic', 'v-hanging', 'v-ideographic', 'v-mathematical', 'vector-effect', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'word-spacing', 'writing-mode', 'x-height', 'xlink:actuate', 'xlink:arcrole', 'xlink:href', 'xlink:role', 'xlink:show', 'xlink:title', 'xlink:type', 'xml:base', 'xmlns:xlink', 'xml:lang', 'xml:space'];
-
-var SVGDOMPropertyConfig = {
-  Properties: {
-    autoReverse: HAS_STRING_BOOLEAN_VALUE$1,
-    externalResourcesRequired: HAS_STRING_BOOLEAN_VALUE$1,
-    preserveAlpha: HAS_STRING_BOOLEAN_VALUE$1
-  },
-  DOMAttributeNames: {
-    autoReverse: 'autoReverse',
-    externalResourcesRequired: 'externalResourcesRequired',
-    preserveAlpha: 'preserveAlpha'
-  },
-  DOMAttributeNamespaces: {
-    xlinkActuate: NS.xlink,
-    xlinkArcrole: NS.xlink,
-    xlinkHref: NS.xlink,
-    xlinkRole: NS.xlink,
-    xlinkShow: NS.xlink,
-    xlinkTitle: NS.xlink,
-    xlinkType: NS.xlink,
-    xmlBase: NS.xml,
-    xmlLang: NS.xml,
-    xmlSpace: NS.xml
-  }
-};
-
-var CAMELIZE = /[\-\:]([a-z])/g;
-var capitalize = function (token) {
-  return token[1].toUpperCase();
+  // SVG
+  about: 'about',
+  accentheight: 'accentHeight',
+  'accent-height': 'accentHeight',
+  accumulate: 'accumulate',
+  additive: 'additive',
+  alignmentbaseline: 'alignmentBaseline',
+  'alignment-baseline': 'alignmentBaseline',
+  allowreorder: 'allowReorder',
+  alphabetic: 'alphabetic',
+  amplitude: 'amplitude',
+  arabicform: 'arabicForm',
+  'arabic-form': 'arabicForm',
+  ascent: 'ascent',
+  attributename: 'attributeName',
+  attributetype: 'attributeType',
+  autoreverse: 'autoReverse',
+  azimuth: 'azimuth',
+  basefrequency: 'baseFrequency',
+  baselineshift: 'baselineShift',
+  'baseline-shift': 'baselineShift',
+  baseprofile: 'baseProfile',
+  bbox: 'bbox',
+  begin: 'begin',
+  bias: 'bias',
+  by: 'by',
+  calcmode: 'calcMode',
+  capheight: 'capHeight',
+  'cap-height': 'capHeight',
+  clip: 'clip',
+  clippath: 'clipPath',
+  'clip-path': 'clipPath',
+  clippathunits: 'clipPathUnits',
+  cliprule: 'clipRule',
+  'clip-rule': 'clipRule',
+  color: 'color',
+  colorinterpolation: 'colorInterpolation',
+  'color-interpolation': 'colorInterpolation',
+  colorinterpolationfilters: 'colorInterpolationFilters',
+  'color-interpolation-filters': 'colorInterpolationFilters',
+  colorprofile: 'colorProfile',
+  'color-profile': 'colorProfile',
+  colorrendering: 'colorRendering',
+  'color-rendering': 'colorRendering',
+  contentscripttype: 'contentScriptType',
+  contentstyletype: 'contentStyleType',
+  cursor: 'cursor',
+  cx: 'cx',
+  cy: 'cy',
+  d: 'd',
+  datatype: 'datatype',
+  decelerate: 'decelerate',
+  descent: 'descent',
+  diffuseconstant: 'diffuseConstant',
+  direction: 'direction',
+  display: 'display',
+  divisor: 'divisor',
+  dominantbaseline: 'dominantBaseline',
+  'dominant-baseline': 'dominantBaseline',
+  dur: 'dur',
+  dx: 'dx',
+  dy: 'dy',
+  edgemode: 'edgeMode',
+  elevation: 'elevation',
+  enablebackground: 'enableBackground',
+  'enable-background': 'enableBackground',
+  end: 'end',
+  exponent: 'exponent',
+  externalresourcesrequired: 'externalResourcesRequired',
+  fill: 'fill',
+  fillopacity: 'fillOpacity',
+  'fill-opacity': 'fillOpacity',
+  fillrule: 'fillRule',
+  'fill-rule': 'fillRule',
+  filter: 'filter',
+  filterres: 'filterRes',
+  filterunits: 'filterUnits',
+  floodopacity: 'floodOpacity',
+  'flood-opacity': 'floodOpacity',
+  floodcolor: 'floodColor',
+  'flood-color': 'floodColor',
+  focusable: 'focusable',
+  fontfamily: 'fontFamily',
+  'font-family': 'fontFamily',
+  fontsize: 'fontSize',
+  'font-size': 'fontSize',
+  fontsizeadjust: 'fontSizeAdjust',
+  'font-size-adjust': 'fontSizeAdjust',
+  fontstretch: 'fontStretch',
+  'font-stretch': 'fontStretch',
+  fontstyle: 'fontStyle',
+  'font-style': 'fontStyle',
+  fontvariant: 'fontVariant',
+  'font-variant': 'fontVariant',
+  fontweight: 'fontWeight',
+  'font-weight': 'fontWeight',
+  format: 'format',
+  from: 'from',
+  fx: 'fx',
+  fy: 'fy',
+  g1: 'g1',
+  g2: 'g2',
+  glyphname: 'glyphName',
+  'glyph-name': 'glyphName',
+  glyphorientationhorizontal: 'glyphOrientationHorizontal',
+  'glyph-orientation-horizontal': 'glyphOrientationHorizontal',
+  glyphorientationvertical: 'glyphOrientationVertical',
+  'glyph-orientation-vertical': 'glyphOrientationVertical',
+  glyphref: 'glyphRef',
+  gradienttransform: 'gradientTransform',
+  gradientunits: 'gradientUnits',
+  hanging: 'hanging',
+  horizadvx: 'horizAdvX',
+  'horiz-adv-x': 'horizAdvX',
+  horizoriginx: 'horizOriginX',
+  'horiz-origin-x': 'horizOriginX',
+  ideographic: 'ideographic',
+  imagerendering: 'imageRendering',
+  'image-rendering': 'imageRendering',
+  in2: 'in2',
+  'in': 'in',
+  inlist: 'inlist',
+  intercept: 'intercept',
+  k1: 'k1',
+  k2: 'k2',
+  k3: 'k3',
+  k4: 'k4',
+  k: 'k',
+  kernelmatrix: 'kernelMatrix',
+  kernelunitlength: 'kernelUnitLength',
+  kerning: 'kerning',
+  keypoints: 'keyPoints',
+  keysplines: 'keySplines',
+  keytimes: 'keyTimes',
+  lengthadjust: 'lengthAdjust',
+  letterspacing: 'letterSpacing',
+  'letter-spacing': 'letterSpacing',
+  lightingcolor: 'lightingColor',
+  'lighting-color': 'lightingColor',
+  limitingconeangle: 'limitingConeAngle',
+  local: 'local',
+  markerend: 'markerEnd',
+  'marker-end': 'markerEnd',
+  markerheight: 'markerHeight',
+  markermid: 'markerMid',
+  'marker-mid': 'markerMid',
+  markerstart: 'markerStart',
+  'marker-start': 'markerStart',
+  markerunits: 'markerUnits',
+  markerwidth: 'markerWidth',
+  mask: 'mask',
+  maskcontentunits: 'maskContentUnits',
+  maskunits: 'maskUnits',
+  mathematical: 'mathematical',
+  mode: 'mode',
+  numoctaves: 'numOctaves',
+  offset: 'offset',
+  opacity: 'opacity',
+  operator: 'operator',
+  order: 'order',
+  orient: 'orient',
+  orientation: 'orientation',
+  origin: 'origin',
+  overflow: 'overflow',
+  overlineposition: 'overlinePosition',
+  'overline-position': 'overlinePosition',
+  overlinethickness: 'overlineThickness',
+  'overline-thickness': 'overlineThickness',
+  paintorder: 'paintOrder',
+  'paint-order': 'paintOrder',
+  panose1: 'panose1',
+  'panose-1': 'panose1',
+  pathlength: 'pathLength',
+  patterncontentunits: 'patternContentUnits',
+  patterntransform: 'patternTransform',
+  patternunits: 'patternUnits',
+  pointerevents: 'pointerEvents',
+  'pointer-events': 'pointerEvents',
+  points: 'points',
+  pointsatx: 'pointsAtX',
+  pointsaty: 'pointsAtY',
+  pointsatz: 'pointsAtZ',
+  prefix: 'prefix',
+  preservealpha: 'preserveAlpha',
+  preserveaspectratio: 'preserveAspectRatio',
+  primitiveunits: 'primitiveUnits',
+  property: 'property',
+  r: 'r',
+  radius: 'radius',
+  refx: 'refX',
+  refy: 'refY',
+  renderingintent: 'renderingIntent',
+  'rendering-intent': 'renderingIntent',
+  repeatcount: 'repeatCount',
+  repeatdur: 'repeatDur',
+  requiredextensions: 'requiredExtensions',
+  requiredfeatures: 'requiredFeatures',
+  resource: 'resource',
+  restart: 'restart',
+  result: 'result',
+  results: 'results',
+  rotate: 'rotate',
+  rx: 'rx',
+  ry: 'ry',
+  scale: 'scale',
+  security: 'security',
+  seed: 'seed',
+  shaperendering: 'shapeRendering',
+  'shape-rendering': 'shapeRendering',
+  slope: 'slope',
+  spacing: 'spacing',
+  specularconstant: 'specularConstant',
+  specularexponent: 'specularExponent',
+  speed: 'speed',
+  spreadmethod: 'spreadMethod',
+  startoffset: 'startOffset',
+  stddeviation: 'stdDeviation',
+  stemh: 'stemh',
+  stemv: 'stemv',
+  stitchtiles: 'stitchTiles',
+  stopcolor: 'stopColor',
+  'stop-color': 'stopColor',
+  stopopacity: 'stopOpacity',
+  'stop-opacity': 'stopOpacity',
+  strikethroughposition: 'strikethroughPosition',
+  'strikethrough-position': 'strikethroughPosition',
+  strikethroughthickness: 'strikethroughThickness',
+  'strikethrough-thickness': 'strikethroughThickness',
+  string: 'string',
+  stroke: 'stroke',
+  strokedasharray: 'strokeDasharray',
+  'stroke-dasharray': 'strokeDasharray',
+  strokedashoffset: 'strokeDashoffset',
+  'stroke-dashoffset': 'strokeDashoffset',
+  strokelinecap: 'strokeLinecap',
+  'stroke-linecap': 'strokeLinecap',
+  strokelinejoin: 'strokeLinejoin',
+  'stroke-linejoin': 'strokeLinejoin',
+  strokemiterlimit: 'strokeMiterlimit',
+  'stroke-miterlimit': 'strokeMiterlimit',
+  strokewidth: 'strokeWidth',
+  'stroke-width': 'strokeWidth',
+  strokeopacity: 'strokeOpacity',
+  'stroke-opacity': 'strokeOpacity',
+  suppresscontenteditablewarning: 'suppressContentEditableWarning',
+  suppresshydrationwarning: 'suppressHydrationWarning',
+  surfacescale: 'surfaceScale',
+  systemlanguage: 'systemLanguage',
+  tablevalues: 'tableValues',
+  targetx: 'targetX',
+  targety: 'targetY',
+  textanchor: 'textAnchor',
+  'text-anchor': 'textAnchor',
+  textdecoration: 'textDecoration',
+  'text-decoration': 'textDecoration',
+  textlength: 'textLength',
+  textrendering: 'textRendering',
+  'text-rendering': 'textRendering',
+  to: 'to',
+  transform: 'transform',
+  'typeof': 'typeof',
+  u1: 'u1',
+  u2: 'u2',
+  underlineposition: 'underlinePosition',
+  'underline-position': 'underlinePosition',
+  underlinethickness: 'underlineThickness',
+  'underline-thickness': 'underlineThickness',
+  unicode: 'unicode',
+  unicodebidi: 'unicodeBidi',
+  'unicode-bidi': 'unicodeBidi',
+  unicoderange: 'unicodeRange',
+  'unicode-range': 'unicodeRange',
+  unitsperem: 'unitsPerEm',
+  'units-per-em': 'unitsPerEm',
+  unselectable: 'unselectable',
+  valphabetic: 'vAlphabetic',
+  'v-alphabetic': 'vAlphabetic',
+  values: 'values',
+  vectoreffect: 'vectorEffect',
+  'vector-effect': 'vectorEffect',
+  version: 'version',
+  vertadvy: 'vertAdvY',
+  'vert-adv-y': 'vertAdvY',
+  vertoriginx: 'vertOriginX',
+  'vert-origin-x': 'vertOriginX',
+  vertoriginy: 'vertOriginY',
+  'vert-origin-y': 'vertOriginY',
+  vhanging: 'vHanging',
+  'v-hanging': 'vHanging',
+  videographic: 'vIdeographic',
+  'v-ideographic': 'vIdeographic',
+  viewbox: 'viewBox',
+  viewtarget: 'viewTarget',
+  visibility: 'visibility',
+  vmathematical: 'vMathematical',
+  'v-mathematical': 'vMathematical',
+  vocab: 'vocab',
+  widths: 'widths',
+  wordspacing: 'wordSpacing',
+  'word-spacing': 'wordSpacing',
+  writingmode: 'writingMode',
+  'writing-mode': 'writingMode',
+  x1: 'x1',
+  x2: 'x2',
+  x: 'x',
+  xchannelselector: 'xChannelSelector',
+  xheight: 'xHeight',
+  'x-height': 'xHeight',
+  xlinkactuate: 'xlinkActuate',
+  'xlink:actuate': 'xlinkActuate',
+  xlinkarcrole: 'xlinkArcrole',
+  'xlink:arcrole': 'xlinkArcrole',
+  xlinkhref: 'xlinkHref',
+  'xlink:href': 'xlinkHref',
+  xlinkrole: 'xlinkRole',
+  'xlink:role': 'xlinkRole',
+  xlinkshow: 'xlinkShow',
+  'xlink:show': 'xlinkShow',
+  xlinktitle: 'xlinkTitle',
+  'xlink:title': 'xlinkTitle',
+  xlinktype: 'xlinkType',
+  'xlink:type': 'xlinkType',
+  xmlbase: 'xmlBase',
+  'xml:base': 'xmlBase',
+  xmllang: 'xmlLang',
+  'xml:lang': 'xmlLang',
+  xmlns: 'xmlns',
+  'xml:space': 'xmlSpace',
+  xmlnsxlink: 'xmlnsXlink',
+  'xmlns:xlink': 'xmlnsXlink',
+  xmlspace: 'xmlSpace',
+  y1: 'y1',
+  y2: 'y2',
+  y: 'y',
+  ychannelselector: 'yChannelSelector',
+  z: 'z',
+  zoomandpan: 'zoomAndPan'
 };
 
-ATTRS.forEach(function (original) {
-  var reactName = original.replace(CAMELIZE, capitalize);
-
-  SVGDOMPropertyConfig.Properties[reactName] = 0;
-  SVGDOMPropertyConfig.DOMAttributeNames[reactName] = original;
-});
-
-var SVGDOMPropertyConfig_1 = SVGDOMPropertyConfig;
-
-DOMProperty_1.injection.injectDOMPropertyConfig(HTMLDOMPropertyConfig_1);
-DOMProperty_1.injection.injectDOMPropertyConfig(SVGDOMPropertyConfig_1);
-
-var injectInternals = ReactFiberDevToolsHook.injectInternals;
-
-var ELEMENT_NODE = HTMLNodeType_1.ELEMENT_NODE;
-var TEXT_NODE = HTMLNodeType_1.TEXT_NODE;
-var COMMENT_NODE = HTMLNodeType_1.COMMENT_NODE;
-var DOCUMENT_NODE = HTMLNodeType_1.DOCUMENT_NODE;
-var DOCUMENT_FRAGMENT_NODE = HTMLNodeType_1.DOCUMENT_FRAGMENT_NODE;
-
-var ROOT_ATTRIBUTE_NAME = DOMProperty_1.ROOT_ATTRIBUTE_NAME;
-
-
-
-
-var getChildNamespace = DOMNamespaces.getChildNamespace;
-var createElement = ReactDOMFiberComponent_1.createElement;
-var createTextNode = ReactDOMFiberComponent_1.createTextNode;
-var setInitialProperties = ReactDOMFiberComponent_1.setInitialProperties;
-var diffProperties = ReactDOMFiberComponent_1.diffProperties;
-var updateProperties = ReactDOMFiberComponent_1.updateProperties;
-var diffHydratedProperties = ReactDOMFiberComponent_1.diffHydratedProperties;
-var diffHydratedText = ReactDOMFiberComponent_1.diffHydratedText;
-var warnForDeletedHydratableElement = ReactDOMFiberComponent_1.warnForDeletedHydratableElement;
-var warnForDeletedHydratableText = ReactDOMFiberComponent_1.warnForDeletedHydratableText;
-var warnForInsertedHydratedElement = ReactDOMFiberComponent_1.warnForInsertedHydratedElement;
-var warnForInsertedHydratedText = ReactDOMFiberComponent_1.warnForInsertedHydratedText;
-var precacheFiberNode = ReactDOMComponentTree_1.precacheFiberNode;
-var updateFiberProps = ReactDOMComponentTree_1.updateFiberProps;
-
+function getStackAddendum$2() {
+  var stack = ReactDebugCurrentFrame.getStackAddendum();
+  return stack != null ? stack : '';
+}
 
 {
-  var lowPriorityWarning = lowPriorityWarning_1;
-  var warning = require$$0;
-  var validateDOMNesting = validateDOMNesting_1;
-  var updatedAncestorInfo = validateDOMNesting.updatedAncestorInfo;
-
-
-  if (typeof Map !== 'function' || Map.prototype == null || typeof Map.prototype.forEach !== 'function' || typeof Set !== 'function' || Set.prototype == null || typeof Set.prototype.clear !== 'function' || typeof Set.prototype.forEach !== 'function') {
-    warning(false, 'React depends on Map and Set built-in types. Make sure that you load a ' + 'polyfill in older browsers. http://fb.me/react-polyfills');
-  }
-}
+  var warnedProperties$1 = {};
+  var hasOwnProperty$1 = Object.prototype.hasOwnProperty;
+  var EVENT_NAME_REGEX = /^on./;
+  var INVALID_EVENT_NAME_REGEX = /^on[^A-Z]/;
+  var rARIA$1 = new RegExp('^(aria)-[' + ATTRIBUTE_NAME_CHAR + ']*$');
+  var rARIACamel$1 = new RegExp('^(aria)[A-Z][' + ATTRIBUTE_NAME_CHAR + ']*$');
 
+  var validateProperty$1 = function (tagName, name, value, canUseEventSystem) {
+    if (hasOwnProperty$1.call(warnedProperties$1, name) && warnedProperties$1[name]) {
+      return true;
+    }
 
+    var lowerCasedName = name.toLowerCase();
+    if (lowerCasedName === 'onfocusin' || lowerCasedName === 'onfocusout') {
+      warning(false, 'React uses onFocus and onBlur instead of onFocusIn and onFocusOut. ' + 'All React events are normalized to bubble, so onFocusIn and onFocusOut ' + 'are not needed/supported by React.');
+      warnedProperties$1[name] = true;
+      return true;
+    }
 
-ReactControlledComponent_1.injection.injectFiberControlledHostComponent(ReactDOMFiberComponent_1);
-findDOMNode_1._injectFiber(function (fiber) {
-  return DOMRenderer.findHostInstance(fiber);
-});
+    // We can't rely on the event system being injected on the server.
+    if (canUseEventSystem) {
+      if (registrationNameModules.hasOwnProperty(name)) {
+        return true;
+      }
+      var registrationName = possibleRegistrationNames.hasOwnProperty(lowerCasedName) ? possibleRegistrationNames[lowerCasedName] : null;
+      if (registrationName != null) {
+        warning(false, 'Invalid event handler property `%s`. Did you mean `%s`?%s', name, registrationName, getStackAddendum$2());
+        warnedProperties$1[name] = true;
+        return true;
+      }
+      if (EVENT_NAME_REGEX.test(name)) {
+        warning(false, 'Unknown event handler property `%s`. It will be ignored.%s', name, getStackAddendum$2());
+        warnedProperties$1[name] = true;
+        return true;
+      }
+    } else if (EVENT_NAME_REGEX.test(name)) {
+      // If no event plugins have been injected, we are in a server environment.
+      // So we can't tell if the event name is correct for sure, but we can filter
+      // out known bad ones like `onclick`. We can't suggest a specific replacement though.
+      if (INVALID_EVENT_NAME_REGEX.test(name)) {
+        warning(false, 'Invalid event handler property `%s`. ' + 'React events use the camelCase naming convention, for example `onClick`.%s', name, getStackAddendum$2());
+      }
+      warnedProperties$1[name] = true;
+      return true;
+    }
 
-var eventsEnabled = null;
-var selectionInformation = null;
+    // Let the ARIA attribute hook validate ARIA attributes
+    if (rARIA$1.test(name) || rARIACamel$1.test(name)) {
+      return true;
+    }
 
-/**
- * True if the supplied DOM node is a valid node element.
- *
- * @param {?DOMElement} node The candidate DOM node.
- * @return {boolean} True if the DOM is a valid DOM node.
- * @internal
- */
-function isValidContainer(node) {
-  return !!(node && (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE || node.nodeType === COMMENT_NODE && node.nodeValue === ' react-mount-point-unstable '));
-}
+    if (lowerCasedName === 'innerhtml') {
+      warning(false, 'Directly setting property `innerHTML` is not permitted. ' + 'For more information, lookup documentation on `dangerouslySetInnerHTML`.');
+      warnedProperties$1[name] = true;
+      return true;
+    }
 
-function getReactRootElementInContainer(container) {
-  if (!container) {
-    return null;
-  }
+    if (lowerCasedName === 'aria') {
+      warning(false, 'The `aria` attribute is reserved for future use in React. ' + 'Pass individual `aria-` attributes instead.');
+      warnedProperties$1[name] = true;
+      return true;
+    }
 
-  if (container.nodeType === DOCUMENT_NODE) {
-    return container.documentElement;
-  } else {
-    return container.firstChild;
-  }
-}
+    if (lowerCasedName === 'is' && value !== null && value !== undefined && typeof value !== 'string') {
+      warning(false, 'Received a `%s` for a string attribute `is`. If this is expected, cast ' + 'the value to a string.%s', typeof value, getStackAddendum$2());
+      warnedProperties$1[name] = true;
+      return true;
+    }
 
-function shouldHydrateDueToLegacyHeuristic(container) {
-  var rootElement = getReactRootElementInContainer(container);
-  return !!(rootElement && rootElement.nodeType === ELEMENT_NODE && rootElement.hasAttribute(ROOT_ATTRIBUTE_NAME));
-}
+    if (typeof value === 'number' && isNaN(value)) {
+      warning(false, 'Received NaN for the `%s` attribute. If this is expected, cast ' + 'the value to a string.%s', name, getStackAddendum$2());
+      warnedProperties$1[name] = true;
+      return true;
+    }
 
-function shouldAutoFocusHostComponent(type, props) {
-  switch (type) {
-    case 'button':
-    case 'input':
-    case 'select':
-    case 'textarea':
-      return !!props.autoFocus;
-  }
-  return false;
-}
+    var isReserved = isReservedProp(name);
 
-var DOMRenderer = ReactFiberReconciler({
-  getRootHostContext: function (rootContainerInstance) {
-    var type = void 0;
-    var namespace = void 0;
-    if (rootContainerInstance.nodeType === DOCUMENT_NODE) {
-      type = '#document';
-      var root = rootContainerInstance.documentElement;
-      namespace = root ? root.namespaceURI : getChildNamespace(null, '');
-    } else {
-      var container = rootContainerInstance.nodeType === COMMENT_NODE ? rootContainerInstance.parentNode : rootContainerInstance;
-      var ownNamespace = container.namespaceURI || null;
-      type = container.tagName;
-      namespace = getChildNamespace(ownNamespace, type);
-    }
-    {
-      var validatedTag = type.toLowerCase();
-      var _ancestorInfo = updatedAncestorInfo(null, validatedTag, null);
-      return { namespace: namespace, ancestorInfo: _ancestorInfo };
-    }
-    return namespace;
-  },
-  getChildHostContext: function (parentHostContext, type) {
-    {
-      var parentHostContextDev = parentHostContext;
-      var _namespace = getChildNamespace(parentHostContextDev.namespace, type);
-      var _ancestorInfo2 = updatedAncestorInfo(parentHostContextDev.ancestorInfo, type, null);
-      return { namespace: _namespace, ancestorInfo: _ancestorInfo2 };
-    }
-    var parentNamespace = parentHostContext;
-    return getChildNamespace(parentNamespace, type);
-  },
-  getPublicInstance: function (instance) {
-    return instance;
-  },
-  prepareForCommit: function () {
-    eventsEnabled = ReactBrowserEventEmitter_1.isEnabled();
-    selectionInformation = ReactInputSelection_1.getSelectionInformation();
-    ReactBrowserEventEmitter_1.setEnabled(false);
-  },
-  resetAfterCommit: function () {
-    ReactInputSelection_1.restoreSelection(selectionInformation);
-    selectionInformation = null;
-    ReactBrowserEventEmitter_1.setEnabled(eventsEnabled);
-    eventsEnabled = null;
-  },
-  createInstance: function (type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
-    var parentNamespace = void 0;
-    {
-      // TODO: take namespace into account when validating.
-      var hostContextDev = hostContext;
-      validateDOMNesting(type, null, null, hostContextDev.ancestorInfo);
-      if (typeof props.children === 'string' || typeof props.children === 'number') {
-        var string = '' + props.children;
-        var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type, null);
-        validateDOMNesting(null, string, null, ownAncestorInfo);
-      }
-      parentNamespace = hostContextDev.namespace;
-    }
-    var domElement = createElement(type, props, rootContainerInstance, parentNamespace);
-    precacheFiberNode(internalInstanceHandle, domElement);
-    updateFiberProps(domElement, props);
-    return domElement;
-  },
-  appendInitialChild: function (parentInstance, child) {
-    parentInstance.appendChild(child);
-  },
-  finalizeInitialChildren: function (domElement, type, props, rootContainerInstance) {
-    setInitialProperties(domElement, type, props, rootContainerInstance);
-    return shouldAutoFocusHostComponent(type, props);
-  },
-  prepareUpdate: function (domElement, type, oldProps, newProps, rootContainerInstance, hostContext) {
-    {
-      var hostContextDev = hostContext;
-      if (typeof newProps.children !== typeof oldProps.children && (typeof newProps.children === 'string' || typeof newProps.children === 'number')) {
-        var string = '' + newProps.children;
-        var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type, null);
-        validateDOMNesting(null, string, null, ownAncestorInfo);
+    // Known attributes should match the casing specified in the property config.
+    if (possibleStandardNames.hasOwnProperty(lowerCasedName)) {
+      var standardName = possibleStandardNames[lowerCasedName];
+      if (standardName !== name) {
+        warning(false, 'Invalid DOM property `%s`. Did you mean `%s`?%s', name, standardName, getStackAddendum$2());
+        warnedProperties$1[name] = true;
+        return true;
       }
+    } else if (!isReserved && name !== lowerCasedName) {
+      // Unknown attributes should have lowercase casing since that's how they
+      // will be cased anyway with server rendering.
+      warning(false, 'React does not recognize the `%s` prop on a DOM element. If you ' + 'intentionally want it to appear in the DOM as a custom ' + 'attribute, spell it as lowercase `%s` instead. ' + 'If you accidentally passed it from a parent component, remove ' + 'it from the DOM element.%s', name, lowerCasedName, getStackAddendum$2());
+      warnedProperties$1[name] = true;
+      return true;
     }
-    return diffProperties(domElement, type, oldProps, newProps, rootContainerInstance);
-  },
-  commitMount: function (domElement, type, newProps, internalInstanceHandle) {
-    domElement.focus();
-  },
-  commitUpdate: function (domElement, updatePayload, type, oldProps, newProps, internalInstanceHandle) {
-    // Update the props handle so that we know which props are the ones with
-    // with current event handlers.
-    updateFiberProps(domElement, newProps);
-    // Apply the diff to the DOM node.
-    updateProperties(domElement, updatePayload, type, oldProps, newProps);
-  },
-  shouldSetTextContent: function (type, props) {
-    return type === 'textarea' || typeof props.children === 'string' || typeof props.children === 'number' || typeof props.dangerouslySetInnerHTML === 'object' && props.dangerouslySetInnerHTML !== null && typeof props.dangerouslySetInnerHTML.__html === 'string';
-  },
-  resetTextContent: function (domElement) {
-    domElement.textContent = '';
-  },
-  shouldDeprioritizeSubtree: function (type, props) {
-    return !!props.hidden;
-  },
-  createTextInstance: function (text, rootContainerInstance, hostContext, internalInstanceHandle) {
-    {
-      var hostContextDev = hostContext;
-      validateDOMNesting(null, text, null, hostContextDev.ancestorInfo);
-    }
-    var textNode = createTextNode(text, rootContainerInstance);
-    precacheFiberNode(internalInstanceHandle, textNode);
-    return textNode;
-  },
-  commitTextUpdate: function (textInstance, oldText, newText) {
-    textInstance.nodeValue = newText;
-  },
-  appendChild: function (parentInstance, child) {
-    parentInstance.appendChild(child);
-  },
-  appendChildToContainer: function (container, child) {
-    if (container.nodeType === COMMENT_NODE) {
-      container.parentNode.insertBefore(child, container);
-    } else {
-      container.appendChild(child);
-    }
-  },
-  insertBefore: function (parentInstance, child, beforeChild) {
-    parentInstance.insertBefore(child, beforeChild);
-  },
-  insertInContainerBefore: function (container, child, beforeChild) {
-    if (container.nodeType === COMMENT_NODE) {
-      container.parentNode.insertBefore(child, beforeChild);
-    } else {
-      container.insertBefore(child, beforeChild);
-    }
-  },
-  removeChild: function (parentInstance, child) {
-    parentInstance.removeChild(child);
-  },
-  removeChildFromContainer: function (container, child) {
-    if (container.nodeType === COMMENT_NODE) {
-      container.parentNode.removeChild(child);
-    } else {
-      container.removeChild(child);
-    }
-  },
-  canHydrateInstance: function (instance, type, props) {
-    return instance.nodeType === ELEMENT_NODE && type === instance.nodeName.toLowerCase();
-  },
-  canHydrateTextInstance: function (instance, text) {
-    if (text === '') {
-      // Empty strings are not parsed by HTML so there won't be a correct match here.
-      return false;
-    }
-    return instance.nodeType === TEXT_NODE;
-  },
-  getNextHydratableSibling: function (instance) {
-    var node = instance.nextSibling;
-    // Skip non-hydratable nodes.
-    while (node && node.nodeType !== ELEMENT_NODE && node.nodeType !== TEXT_NODE) {
-      node = node.nextSibling;
+
+    if (typeof value === 'boolean' && !shouldAttributeAcceptBooleanValue(name)) {
+      if (value) {
+        warning(false, 'Received `%s` for a non-boolean attribute `%s`.\n\n' + 'If you want to write it to the DOM, pass a string instead: ' + '%s="%s" or %s={value.toString()}.%s', value, name, name, value, name, getStackAddendum$2());
+      } else {
+        warning(false, 'Received `%s` for a non-boolean attribute `%s`.\n\n' + 'If you want to write it to the DOM, pass a string instead: ' + '%s="%s" or %s={value.toString()}.\n\n' + 'If you used to conditionally omit it with %s={condition && value}, ' + 'pass %s={condition ? value : undefined} instead.%s', value, name, name, value, name, name, name, getStackAddendum$2());
+      }
+      warnedProperties$1[name] = true;
+      return true;
     }
-    return node;
-  },
-  getFirstHydratableChild: function (parentInstance) {
-    var next = parentInstance.firstChild;
-    // Skip non-hydratable nodes.
-    while (next && next.nodeType !== ELEMENT_NODE && next.nodeType !== TEXT_NODE) {
-      next = next.nextSibling;
+
+    // Now that we've validated casing, do not validate
+    // data types for reserved props
+    if (isReserved) {
+      return true;
     }
-    return next;
-  },
-  hydrateInstance: function (instance, type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
-    precacheFiberNode(internalInstanceHandle, instance);
-    // TODO: Possibly defer this until the commit phase where all the events
-    // get attached.
-    updateFiberProps(instance, props);
-    var parentNamespace = void 0;
-    {
-      var hostContextDev = hostContext;
-      parentNamespace = hostContextDev.namespace;
+
+    // Warn when a known attribute is a bad type
+    if (!shouldSetAttribute(name, value)) {
+      warnedProperties$1[name] = true;
+      return false;
     }
-    return diffHydratedProperties(instance, type, props, parentNamespace, rootContainerInstance);
-  },
-  hydrateTextInstance: function (textInstance, text, internalInstanceHandle) {
-    precacheFiberNode(internalInstanceHandle, textInstance);
-    return diffHydratedText(textInstance, text);
-  },
-  didNotHydrateInstance: function (parentInstance, instance) {
-    if (instance.nodeType === 1) {
-      warnForDeletedHydratableElement(parentInstance, instance);
-    } else {
-      warnForDeletedHydratableText(parentInstance, instance);
+
+    return true;
+  };
+}
+
+var warnUnknownProperties = function (type, props, canUseEventSystem) {
+  var unknownProps = [];
+  for (var key in props) {
+    var isValid = validateProperty$1(type, key, props[key], canUseEventSystem);
+    if (!isValid) {
+      unknownProps.push(key);
     }
-  },
-  didNotFindHydratableInstance: function (parentInstance, type, props) {
-    warnForInsertedHydratedElement(parentInstance, type, props);
-  },
-  didNotFindHydratableTextInstance: function (parentInstance, text) {
-    warnForInsertedHydratedText(parentInstance, text);
-  },
+  }
 
+  var unknownPropString = unknownProps.map(function (prop) {
+    return '`' + prop + '`';
+  }).join(', ');
+  if (unknownProps.length === 1) {
+    warning(false, 'Invalid value for prop %s on <%s> tag. Either remove it from the element, ' + 'or pass a string or number value to keep it in the DOM. ' + 'For details, see https://fb.me/react-attribute-behavior%s', unknownPropString, type, getStackAddendum$2());
+  } else if (unknownProps.length > 1) {
+    warning(false, 'Invalid values for props %s on <%s> tag. Either remove them from the element, ' + 'or pass a string or number value to keep them in the DOM. ' + 'For details, see https://fb.me/react-attribute-behavior%s', unknownPropString, type, getStackAddendum$2());
+  }
+};
 
-  scheduleDeferredCallback: ReactDOMFrameScheduling.rIC,
+function validateProperties$2(type, props, canUseEventSystem) {
+  if (isCustomComponent(type, props)) {
+    return;
+  }
+  warnUnknownProperties(type, props, canUseEventSystem);
+}
 
-  useSyncScheduling: !ReactDOMFeatureFlags_1.fiberAsyncScheduling
-});
+// TODO: direct imports like some-package/src/* are bad. Fix me.
+var getCurrentFiberOwnerName$1 = ReactDebugCurrentFiber.getCurrentFiberOwnerName;
+var getCurrentFiberStackAddendum$2 = ReactDebugCurrentFiber.getCurrentFiberStackAddendum;
 
-ReactGenericBatching_1.injection.injectFiberBatchedUpdates(DOMRenderer.batchedUpdates);
+var didWarnInvalidHydration = false;
+var didWarnShadyDOM = false;
 
-var warnedAboutHydrateAPI = false;
+var DANGEROUSLY_SET_INNER_HTML = 'dangerouslySetInnerHTML';
+var SUPPRESS_CONTENT_EDITABLE_WARNING = 'suppressContentEditableWarning';
+var SUPPRESS_HYDRATION_WARNING$1 = 'suppressHydrationWarning';
+var AUTOFOCUS = 'autoFocus';
+var CHILDREN = 'children';
+var STYLE = 'style';
+var HTML = '__html';
 
-function renderSubtreeIntoContainer(parentComponent, children, container, forceHydrate, callback) {
-  !isValidContainer(container) ? invariant(false, 'Target container is not a DOM element.') : void 0;
+var HTML_NAMESPACE = Namespaces.html;
 
-  {
-    if (container._reactRootContainer && container.nodeType !== COMMENT_NODE) {
-      var hostInstance = DOMRenderer.findHostInstanceWithNoPortals(container._reactRootContainer.current);
-      if (hostInstance) {
-        warning(hostInstance.parentNode === container, 'render(...): It looks like the React-rendered content of this ' + 'container was removed without using React. This is not ' + 'supported and will cause errors. Instead, call ' + 'ReactDOM.unmountComponentAtNode to empty a container.');
-      }
-    }
 
-    var isRootRenderedBySomeReact = !!container._reactRootContainer;
-    var rootEl = getReactRootElementInContainer(container);
-    var hasNonRootReactChild = !!(rootEl && ReactDOMComponentTree_1.getInstanceFromNode(rootEl));
+var getStack = emptyFunction.thatReturns('');
 
-    warning(!hasNonRootReactChild || isRootRenderedBySomeReact, 'render(...): Replacing React-rendered children with a new root ' + 'component. If you intended to update the children of this node, ' + 'you should instead have the existing children update their state ' + 'and render the new components instead of calling ReactDOM.render.');
+{
+  getStack = getCurrentFiberStackAddendum$2;
 
-    warning(container.nodeType !== ELEMENT_NODE || !container.tagName || container.tagName.toUpperCase() !== 'BODY', 'render(): Rendering components directly into document.body is ' + 'discouraged, since its children are often manipulated by third-party ' + 'scripts and browser extensions. This may lead to subtle ' + 'reconciliation issues. Try rendering into a container element created ' + 'for your app.');
-  }
+  var warnedUnknownTags = {
+    // Chrome is the only major browser not shipping <time>. But as of July
+    // 2017 it intends to ship it due to widespread usage. We intentionally
+    // *don't* warn for <time> even if it's unrecognized by Chrome because
+    // it soon will be, and many apps have been using it anyway.
+    time: true,
+    // There are working polyfills for <dialog>. Let people use it.
+    dialog: true
+  };
 
-  var root = container._reactRootContainer;
-  if (!root) {
-    var shouldHydrate = forceHydrate || shouldHydrateDueToLegacyHeuristic(container);
-    // First clear any existing content.
-    if (!shouldHydrate) {
-      var warned = false;
-      var rootSibling = void 0;
-      while (rootSibling = container.lastChild) {
-        {
-          if (!warned && rootSibling.nodeType === ELEMENT_NODE && rootSibling.hasAttribute(ROOT_ATTRIBUTE_NAME)) {
-            warned = true;
-            warning(false, 'render(): Target node has markup rendered by React, but there ' + 'are unrelated nodes as well. This is most commonly caused by ' + 'white-space inserted around server-rendered markup.');
-          }
-        }
-        container.removeChild(rootSibling);
-      }
+  var validatePropertiesInDevelopment = function (type, props) {
+    validateProperties(type, props);
+    validateProperties$1(type, props);
+    validateProperties$2(type, props, /* canUseEventSystem */true);
+  };
+
+  // HTML parsing normalizes CR and CRLF to LF.
+  // It also can turn \u0000 into \uFFFD inside attributes.
+  // https://www.w3.org/TR/html5/single-page.html#preprocessing-the-input-stream
+  // If we have a mismatch, it might be caused by that.
+  // We will still patch up in this case but not fire the warning.
+  var NORMALIZE_NEWLINES_REGEX = /\r\n?/g;
+  var NORMALIZE_NULL_AND_REPLACEMENT_REGEX = /\u0000|\uFFFD/g;
+
+  var normalizeMarkupForTextOrAttribute = function (markup) {
+    var markupString = typeof markup === 'string' ? markup : '' + markup;
+    return markupString.replace(NORMALIZE_NEWLINES_REGEX, '\n').replace(NORMALIZE_NULL_AND_REPLACEMENT_REGEX, '');
+  };
+
+  var warnForTextDifference = function (serverText, clientText) {
+    if (didWarnInvalidHydration) {
+      return;
     }
-    {
-      if (shouldHydrate && !forceHydrate && !warnedAboutHydrateAPI) {
-        warnedAboutHydrateAPI = true;
-        lowPriorityWarning(false, 'render(): Calling ReactDOM.render() to hydrate server-rendered markup ' + 'will stop working in React v17. Replace the ReactDOM.render() call ' + 'with ReactDOM.hydrate() if you want React to attach to the server HTML.');
-      }
+    var normalizedClientText = normalizeMarkupForTextOrAttribute(clientText);
+    var normalizedServerText = normalizeMarkupForTextOrAttribute(serverText);
+    if (normalizedServerText === normalizedClientText) {
+      return;
     }
-    var newRoot = DOMRenderer.createContainer(container);
-    root = container._reactRootContainer = newRoot;
-    // Initial mount should not be batched.
-    DOMRenderer.unbatchedUpdates(function () {
-      DOMRenderer.updateContainer(children, newRoot, parentComponent, callback);
+    didWarnInvalidHydration = true;
+    warning(false, 'Text content did not match. Server: "%s" Client: "%s"', normalizedServerText, normalizedClientText);
+  };
+
+  var warnForPropDifference = function (propName, serverValue, clientValue) {
+    if (didWarnInvalidHydration) {
+      return;
+    }
+    var normalizedClientValue = normalizeMarkupForTextOrAttribute(clientValue);
+    var normalizedServerValue = normalizeMarkupForTextOrAttribute(serverValue);
+    if (normalizedServerValue === normalizedClientValue) {
+      return;
+    }
+    didWarnInvalidHydration = true;
+    warning(false, 'Prop `%s` did not match. Server: %s Client: %s', propName, JSON.stringify(normalizedServerValue), JSON.stringify(normalizedClientValue));
+  };
+
+  var warnForExtraAttributes = function (attributeNames) {
+    if (didWarnInvalidHydration) {
+      return;
+    }
+    didWarnInvalidHydration = true;
+    var names = [];
+    attributeNames.forEach(function (name) {
+      names.push(name);
     });
-  } else {
-    DOMRenderer.updateContainer(children, root, parentComponent, callback);
-  }
-  return DOMRenderer.getPublicRootInstance(root);
+    warning(false, 'Extra attributes from the server: %s', names);
+  };
+
+  var warnForInvalidEventListener = function (registrationName, listener) {
+    if (listener === false) {
+      warning(false, 'Expected `%s` listener to be a function, instead got `false`.\n\n' + 'If you used to conditionally omit it with %s={condition && value}, ' + 'pass %s={condition ? value : undefined} instead.%s', registrationName, registrationName, registrationName, getCurrentFiberStackAddendum$2());
+    } else {
+      warning(false, 'Expected `%s` listener to be a function, instead got a value of `%s` type.%s', registrationName, typeof listener, getCurrentFiberStackAddendum$2());
+    }
+  };
+
+  // Parse the HTML and read it back to normalize the HTML string so that it
+  // can be used for comparison.
+  var normalizeHTML = function (parent, html) {
+    // We could have created a separate document here to avoid
+    // re-initializing custom elements if they exist. But this breaks
+    // how <noscript> is being handled. So we use the same document.
+    // See the discussion in https://github.com/facebook/react/pull/11157.
+    var testElement = parent.namespaceURI === HTML_NAMESPACE ? parent.ownerDocument.createElement(parent.tagName) : parent.ownerDocument.createElementNS(parent.namespaceURI, parent.tagName);
+    testElement.innerHTML = html;
+    return testElement.innerHTML;
+  };
 }
 
-function createPortal(children, container) {
-  var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
+function ensureListeningTo(rootContainerElement, registrationName) {
+  var isDocumentOrFragment = rootContainerElement.nodeType === DOCUMENT_NODE || rootContainerElement.nodeType === DOCUMENT_FRAGMENT_NODE;
+  var doc = isDocumentOrFragment ? rootContainerElement : rootContainerElement.ownerDocument;
+  listenTo(registrationName, doc);
+}
 
-  !isValidContainer(container) ? invariant(false, 'Target container is not a DOM element.') : void 0;
-  // TODO: pass ReactDOM portal implementation as third argument
-  return ReactPortal.createPortal(children, container, null, key);
+function getOwnerDocumentFromRootContainer(rootContainerElement) {
+  return rootContainerElement.nodeType === DOCUMENT_NODE ? rootContainerElement : rootContainerElement.ownerDocument;
 }
 
-var ReactDOMFiber = {
-  createPortal: createPortal,
+// There are so many media events, it makes sense to just
+// maintain a list rather than create a `trapBubbledEvent` for each
+var mediaEvents = {
+  topAbort: 'abort',
+  topCanPlay: 'canplay',
+  topCanPlayThrough: 'canplaythrough',
+  topDurationChange: 'durationchange',
+  topEmptied: 'emptied',
+  topEncrypted: 'encrypted',
+  topEnded: 'ended',
+  topError: 'error',
+  topLoadedData: 'loadeddata',
+  topLoadedMetadata: 'loadedmetadata',
+  topLoadStart: 'loadstart',
+  topPause: 'pause',
+  topPlay: 'play',
+  topPlaying: 'playing',
+  topProgress: 'progress',
+  topRateChange: 'ratechange',
+  topSeeked: 'seeked',
+  topSeeking: 'seeking',
+  topStalled: 'stalled',
+  topSuspend: 'suspend',
+  topTimeUpdate: 'timeupdate',
+  topVolumeChange: 'volumechange',
+  topWaiting: 'waiting'
+};
 
-  hydrate: function (element, container, callback) {
-    // TODO: throw or warn if we couldn't hydrate?
-    return renderSubtreeIntoContainer(null, element, container, true, callback);
-  },
-  render: function (element, container, callback) {
-    return renderSubtreeIntoContainer(null, element, container, false, callback);
-  },
-  unstable_renderSubtreeIntoContainer: function (parentComponent, element, containerNode, callback) {
-    !(parentComponent != null && ReactInstanceMap_1.has(parentComponent)) ? invariant(false, 'parentComponent must be a valid React Component') : void 0;
-    return renderSubtreeIntoContainer(parentComponent, element, containerNode, false, callback);
-  },
-  unmountComponentAtNode: function (container) {
-    !isValidContainer(container) ? invariant(false, 'unmountComponentAtNode(...): Target container is not a DOM element.') : void 0;
+function trapClickOnNonInteractiveElement(node) {
+  // Mobile Safari does not fire properly bubble click events on
+  // non-interactive elements, which means delegated click listeners do not
+  // fire. The workaround for this bug involves attaching an empty click
+  // listener on the target node.
+  // http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html
+  // Just set it using the onclick property so that we don't have to manage any
+  // bookkeeping for it. Not sure if we need to clear it when the listener is
+  // removed.
+  // TODO: Only do this for the relevant Safaris maybe?
+  node.onclick = emptyFunction;
+}
 
-    if (container._reactRootContainer) {
+function setInitialDOMProperties(tag, domElement, rootContainerElement, nextProps, isCustomComponentTag) {
+  for (var propKey in nextProps) {
+    if (!nextProps.hasOwnProperty(propKey)) {
+      continue;
+    }
+    var nextProp = nextProps[propKey];
+    if (propKey === STYLE) {
       {
-        var rootEl = getReactRootElementInContainer(container);
-        var renderedByDifferentReact = rootEl && !ReactDOMComponentTree_1.getInstanceFromNode(rootEl);
-        warning(!renderedByDifferentReact, "unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by another copy of React.');
+        if (nextProp) {
+          // Freeze the next style object so that we can assume it won't be
+          // mutated. We have already warned for this in the past.
+          Object.freeze(nextProp);
+        }
+      }
+      // Relies on `updateStylesByID` not mutating `styleUpdates`.
+      setValueForStyles(domElement, nextProp, getStack);
+    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
+      var nextHtml = nextProp ? nextProp[HTML] : undefined;
+      if (nextHtml != null) {
+        setInnerHTML(domElement, nextHtml);
+      }
+    } else if (propKey === CHILDREN) {
+      if (typeof nextProp === 'string') {
+        // Avoid setting initial textContent when the text is empty. In IE11 setting
+        // textContent on a <textarea> will cause the placeholder to not
+        // show within the <textarea> until it has been focused and blurred again.
+        // https://github.com/facebook/react/issues/6731#issuecomment-254874553
+        var canSetTextContent = tag !== 'textarea' || nextProp !== '';
+        if (canSetTextContent) {
+          setTextContent(domElement, nextProp);
+        }
+      } else if (typeof nextProp === 'number') {
+        setTextContent(domElement, '' + nextProp);
+      }
+    } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {
+      // Noop
+    } else if (propKey === AUTOFOCUS) {
+      // We polyfill it separately on the client during commit.
+      // We blacklist it here rather than in the property list because we emit it in SSR.
+    } else if (registrationNameModules.hasOwnProperty(propKey)) {
+      if (nextProp != null) {
+        if (true && typeof nextProp !== 'function') {
+          warnForInvalidEventListener(propKey, nextProp);
+        }
+        ensureListeningTo(rootContainerElement, propKey);
+      }
+    } else if (isCustomComponentTag) {
+      setValueForAttribute(domElement, propKey, nextProp);
+    } else if (nextProp != null) {
+      // If we're updating to null or undefined, we should remove the property
+      // from the DOM node instead of inadvertently setting to a string. This
+      // brings us in line with the same behavior we have on initial render.
+      setValueForProperty(domElement, propKey, nextProp);
+    }
+  }
+}
+
+function updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag) {
+  // TODO: Handle wasCustomComponentTag
+  for (var i = 0; i < updatePayload.length; i += 2) {
+    var propKey = updatePayload[i];
+    var propValue = updatePayload[i + 1];
+    if (propKey === STYLE) {
+      setValueForStyles(domElement, propValue, getStack);
+    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
+      setInnerHTML(domElement, propValue);
+    } else if (propKey === CHILDREN) {
+      setTextContent(domElement, propValue);
+    } else if (isCustomComponentTag) {
+      if (propValue != null) {
+        setValueForAttribute(domElement, propKey, propValue);
+      } else {
+        deleteValueForAttribute(domElement, propKey);
       }
-
-      // Unmount should not be batched.
-      DOMRenderer.unbatchedUpdates(function () {
-        renderSubtreeIntoContainer(null, null, container, false, function () {
-          container._reactRootContainer = null;
-        });
-      });
-      // If you call unmountComponentAtNode twice in quick succession, you'll
-      // get `true` twice. That's probably fine?
-      return true;
+    } else if (propValue != null) {
+      setValueForProperty(domElement, propKey, propValue);
     } else {
-      {
-        var _rootEl = getReactRootElementInContainer(container);
-        var hasNonRootReactChild = !!(_rootEl && ReactDOMComponentTree_1.getInstanceFromNode(_rootEl));
+      // If we're updating to null or undefined, we should remove the property
+      // from the DOM node instead of inadvertently setting to a string. This
+      // brings us in line with the same behavior we have on initial render.
+      deleteValueForProperty(domElement, propKey);
+    }
+  }
+}
 
-        // Check if the container itself is a React root node.
-        var isContainerReactRoot = container.nodeType === 1 && isValidContainer(container.parentNode) && !!container.parentNode._reactRootContainer;
+function createElement$1(type, props, rootContainerElement, parentNamespace) {
+  // We create tags in the namespace of their parent container, except HTML
+  var ownerDocument = getOwnerDocumentFromRootContainer(rootContainerElement);
+  var domElement;
+  var namespaceURI = parentNamespace;
+  if (namespaceURI === HTML_NAMESPACE) {
+    namespaceURI = getIntrinsicNamespace(type);
+  }
+  if (namespaceURI === HTML_NAMESPACE) {
+    {
+      var isCustomComponentTag = isCustomComponent(type, props);
+      // Should this check be gated by parent namespace? Not sure we want to
+      // allow <SVG> or <mATH>.
+      warning(isCustomComponentTag || type === type.toLowerCase(), '<%s /> is using uppercase HTML. Always use lowercase HTML tags ' + 'in React.', type);
+    }
+
+    if (type === 'script') {
+      // Create the script via .innerHTML so its "parser-inserted" flag is
+      // set to true and it does not execute
+      var div = ownerDocument.createElement('div');
+      div.innerHTML = '<script><' + '/script>'; // eslint-disable-line
+      // This is guaranteed to yield a script element.
+      var firstChild = div.firstChild;
+      domElement = div.removeChild(firstChild);
+    } else if (typeof props.is === 'string') {
+      // $FlowIssue `createElement` should be updated for Web Components
+      domElement = ownerDocument.createElement(type, { is: props.is });
+    } else {
+      // Separate else branch instead of using `props.is || undefined` above because of a Firefox bug.
+      // See discussion in https://github.com/facebook/react/pull/6896
+      // and discussion in https://bugzilla.mozilla.org/show_bug.cgi?id=1276240
+      domElement = ownerDocument.createElement(type);
+    }
+  } else {
+    domElement = ownerDocument.createElementNS(namespaceURI, type);
+  }
 
-        warning(!hasNonRootReactChild, "unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by React and is not a top-level container. %s', isContainerReactRoot ? 'You may have accidentally passed in a React root node instead ' + 'of its container.' : 'Instead, have the parent component update its state and ' + 'rerender in order to remove this component.');
+  {
+    if (namespaceURI === HTML_NAMESPACE) {
+      if (!isCustomComponentTag && Object.prototype.toString.call(domElement) === '[object HTMLUnknownElement]' && !Object.prototype.hasOwnProperty.call(warnedUnknownTags, type)) {
+        warnedUnknownTags[type] = true;
+        warning(false, 'The tag <%s> is unrecognized in this browser. ' + 'If you meant to render a React component, start its name with ' + 'an uppercase letter.', type);
       }
+    }
+  }
 
-      return false;
+  return domElement;
+}
+
+function createTextNode$1(text, rootContainerElement) {
+  return getOwnerDocumentFromRootContainer(rootContainerElement).createTextNode(text);
+}
+
+function setInitialProperties$1(domElement, tag, rawProps, rootContainerElement) {
+  var isCustomComponentTag = isCustomComponent(tag, rawProps);
+  {
+    validatePropertiesInDevelopment(tag, rawProps);
+    if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
+      warning(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerName$1() || 'A component');
+      didWarnShadyDOM = true;
     }
-  },
+  }
 
+  // TODO: Make sure that we check isMounted before firing any of these events.
+  var props;
+  switch (tag) {
+    case 'iframe':
+    case 'object':
+      trapBubbledEvent('topLoad', 'load', domElement);
+      props = rawProps;
+      break;
+    case 'video':
+    case 'audio':
+      // Create listener for each media event
+      for (var event in mediaEvents) {
+        if (mediaEvents.hasOwnProperty(event)) {
+          trapBubbledEvent(event, mediaEvents[event], domElement);
+        }
+      }
+      props = rawProps;
+      break;
+    case 'source':
+      trapBubbledEvent('topError', 'error', domElement);
+      props = rawProps;
+      break;
+    case 'img':
+    case 'image':
+      trapBubbledEvent('topError', 'error', domElement);
+      trapBubbledEvent('topLoad', 'load', domElement);
+      props = rawProps;
+      break;
+    case 'form':
+      trapBubbledEvent('topReset', 'reset', domElement);
+      trapBubbledEvent('topSubmit', 'submit', domElement);
+      props = rawProps;
+      break;
+    case 'details':
+      trapBubbledEvent('topToggle', 'toggle', domElement);
+      props = rawProps;
+      break;
+    case 'input':
+      initWrapperState(domElement, rawProps);
+      props = getHostProps(domElement, rawProps);
+      trapBubbledEvent('topInvalid', 'invalid', domElement);
+      // For controlled components we always need to ensure we're listening
+      // to onChange. Even if there is no listener.
+      ensureListeningTo(rootContainerElement, 'onChange');
+      break;
+    case 'option':
+      validateProps(domElement, rawProps);
+      props = getHostProps$1(domElement, rawProps);
+      break;
+    case 'select':
+      initWrapperState$1(domElement, rawProps);
+      props = getHostProps$2(domElement, rawProps);
+      trapBubbledEvent('topInvalid', 'invalid', domElement);
+      // For controlled components we always need to ensure we're listening
+      // to onChange. Even if there is no listener.
+      ensureListeningTo(rootContainerElement, 'onChange');
+      break;
+    case 'textarea':
+      initWrapperState$2(domElement, rawProps);
+      props = getHostProps$3(domElement, rawProps);
+      trapBubbledEvent('topInvalid', 'invalid', domElement);
+      // For controlled components we always need to ensure we're listening
+      // to onChange. Even if there is no listener.
+      ensureListeningTo(rootContainerElement, 'onChange');
+      break;
+    default:
+      props = rawProps;
+  }
 
-  findDOMNode: findDOMNode_1,
+  assertValidProps(tag, props, getStack);
 
-  // Temporary alias since we already shipped React 16 RC with it.
-  // TODO: remove in React 17.
-  unstable_createPortal: createPortal,
+  setInitialDOMProperties(tag, domElement, rootContainerElement, props, isCustomComponentTag);
 
-  unstable_batchedUpdates: ReactGenericBatching_1.batchedUpdates,
+  switch (tag) {
+    case 'input':
+      // TODO: Make sure we check if this is still unmounted or do any clean
+      // up necessary since we never stop tracking anymore.
+      track(domElement);
+      postMountWrapper(domElement, rawProps);
+      break;
+    case 'textarea':
+      // TODO: Make sure we check if this is still unmounted or do any clean
+      // up necessary since we never stop tracking anymore.
+      track(domElement);
+      postMountWrapper$3(domElement, rawProps);
+      break;
+    case 'option':
+      postMountWrapper$1(domElement, rawProps);
+      break;
+    case 'select':
+      postMountWrapper$2(domElement, rawProps);
+      break;
+    default:
+      if (typeof props.onClick === 'function') {
+        // TODO: This cast may not be sound for SVG, MathML or custom elements.
+        trapClickOnNonInteractiveElement(domElement);
+      }
+      break;
+  }
+}
 
-  unstable_deferredUpdates: DOMRenderer.deferredUpdates,
+// Calculate the diff between the two objects.
+function diffProperties$1(domElement, tag, lastRawProps, nextRawProps, rootContainerElement) {
+  {
+    validatePropertiesInDevelopment(tag, nextRawProps);
+  }
 
-  flushSync: DOMRenderer.flushSync,
+  var updatePayload = null;
 
-  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
-    // For TapEventPlugin which is popular in open source
-    EventPluginHub: EventPluginHub_1,
-    // Used by test-utils
-    EventPluginRegistry: EventPluginRegistry_1,
-    EventPropagators: EventPropagators_1,
-    ReactControlledComponent: ReactControlledComponent_1,
-    ReactDOMComponentTree: ReactDOMComponentTree_1,
-    ReactDOMEventListener: ReactDOMEventListener_1
+  var lastProps;
+  var nextProps;
+  switch (tag) {
+    case 'input':
+      lastProps = getHostProps(domElement, lastRawProps);
+      nextProps = getHostProps(domElement, nextRawProps);
+      updatePayload = [];
+      break;
+    case 'option':
+      lastProps = getHostProps$1(domElement, lastRawProps);
+      nextProps = getHostProps$1(domElement, nextRawProps);
+      updatePayload = [];
+      break;
+    case 'select':
+      lastProps = getHostProps$2(domElement, lastRawProps);
+      nextProps = getHostProps$2(domElement, nextRawProps);
+      updatePayload = [];
+      break;
+    case 'textarea':
+      lastProps = getHostProps$3(domElement, lastRawProps);
+      nextProps = getHostProps$3(domElement, nextRawProps);
+      updatePayload = [];
+      break;
+    default:
+      lastProps = lastRawProps;
+      nextProps = nextRawProps;
+      if (typeof lastProps.onClick !== 'function' && typeof nextProps.onClick === 'function') {
+        // TODO: This cast may not be sound for SVG, MathML or custom elements.
+        trapClickOnNonInteractiveElement(domElement);
+      }
+      break;
   }
-};
 
-var foundDevTools = injectInternals({
-  findFiberByHostInstance: ReactDOMComponentTree_1.getClosestInstanceFromNode,
-  findHostInstanceByFiber: DOMRenderer.findHostInstance,
-  // This is an enum because we may add more (e.g. profiler build)
-  bundleType: 1,
-  version: ReactVersion,
-  rendererPackageName: 'react-dom'
-});
+  assertValidProps(tag, nextProps, getStack);
 
-{
-  if (!foundDevTools && ExecutionEnvironment.canUseDOM && window.top === window.self) {
-    // If we're in Chrome or Firefox, provide a download link if not installed.
-    if (navigator.userAgent.indexOf('Chrome') > -1 && navigator.userAgent.indexOf('Edge') === -1 || navigator.userAgent.indexOf('Firefox') > -1) {
-      var protocol = window.location.protocol;
-      // Don't warn in exotic cases like chrome-extension://.
-      if (/^(https?|file):$/.test(protocol)) {
-        console.info('%cDownload the React DevTools ' + 'for a better development experience: ' + 'https://fb.me/react-devtools' + (protocol === 'file:' ? '\nYou might need to use a local HTTP server (instead of file://): ' + 'https://fb.me/react-devtools-faq' : ''), 'font-weight:bold');
+  var propKey;
+  var styleName;
+  var styleUpdates = null;
+  for (propKey in lastProps) {
+    if (nextProps.hasOwnProperty(propKey) || !lastProps.hasOwnProperty(propKey) || lastProps[propKey] == null) {
+      continue;
+    }
+    if (propKey === STYLE) {
+      var lastStyle = lastProps[propKey];
+      for (styleName in lastStyle) {
+        if (lastStyle.hasOwnProperty(styleName)) {
+          if (!styleUpdates) {
+            styleUpdates = {};
+          }
+          styleUpdates[styleName] = '';
+        }
+      }
+    } else if (propKey === DANGEROUSLY_SET_INNER_HTML || propKey === CHILDREN) {
+      // Noop. This is handled by the clear text mechanism.
+    } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {
+      // Noop
+    } else if (propKey === AUTOFOCUS) {
+      // Noop. It doesn't work on updates anyway.
+    } else if (registrationNameModules.hasOwnProperty(propKey)) {
+      // This is a special case. If any listener updates we need to ensure
+      // that the "current" fiber pointer gets updated so we need a commit
+      // to update this element.
+      if (!updatePayload) {
+        updatePayload = [];
+      }
+    } else {
+      // For all other deleted properties we add it to the queue. We use
+      // the whitelist in the commit phase instead.
+      (updatePayload = updatePayload || []).push(propKey, null);
+    }
+  }
+  for (propKey in nextProps) {
+    var nextProp = nextProps[propKey];
+    var lastProp = lastProps != null ? lastProps[propKey] : undefined;
+    if (!nextProps.hasOwnProperty(propKey) || nextProp === lastProp || nextProp == null && lastProp == null) {
+      continue;
+    }
+    if (propKey === STYLE) {
+      {
+        if (nextProp) {
+          // Freeze the next style object so that we can assume it won't be
+          // mutated. We have already warned for this in the past.
+          Object.freeze(nextProp);
+        }
+      }
+      if (lastProp) {
+        // Unset styles on `lastProp` but not on `nextProp`.
+        for (styleName in lastProp) {
+          if (lastProp.hasOwnProperty(styleName) && (!nextProp || !nextProp.hasOwnProperty(styleName))) {
+            if (!styleUpdates) {
+              styleUpdates = {};
+            }
+            styleUpdates[styleName] = '';
+          }
+        }
+        // Update styles that changed since `lastProp`.
+        for (styleName in nextProp) {
+          if (nextProp.hasOwnProperty(styleName) && lastProp[styleName] !== nextProp[styleName]) {
+            if (!styleUpdates) {
+              styleUpdates = {};
+            }
+            styleUpdates[styleName] = nextProp[styleName];
+          }
+        }
+      } else {
+        // Relies on `updateStylesByID` not mutating `styleUpdates`.
+        if (!styleUpdates) {
+          if (!updatePayload) {
+            updatePayload = [];
+          }
+          updatePayload.push(propKey, styleUpdates);
+        }
+        styleUpdates = nextProp;
+      }
+    } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
+      var nextHtml = nextProp ? nextProp[HTML] : undefined;
+      var lastHtml = lastProp ? lastProp[HTML] : undefined;
+      if (nextHtml != null) {
+        if (lastHtml !== nextHtml) {
+          (updatePayload = updatePayload || []).push(propKey, '' + nextHtml);
+        }
+      } else {
+        // TODO: It might be too late to clear this if we have children
+        // inserted already.
+      }
+    } else if (propKey === CHILDREN) {
+      if (lastProp !== nextProp && (typeof nextProp === 'string' || typeof nextProp === 'number')) {
+        (updatePayload = updatePayload || []).push(propKey, '' + nextProp);
+      }
+    } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1) {
+      // Noop
+    } else if (registrationNameModules.hasOwnProperty(propKey)) {
+      if (nextProp != null) {
+        // We eagerly listen to this even though we haven't committed yet.
+        if (true && typeof nextProp !== 'function') {
+          warnForInvalidEventListener(propKey, nextProp);
+        }
+        ensureListeningTo(rootContainerElement, propKey);
+      }
+      if (!updatePayload && lastProp !== nextProp) {
+        // This is a special case. If any listener updates we need to ensure
+        // that the "current" props pointer gets updated so we need a commit
+        // to update this element.
+        updatePayload = [];
       }
+    } else {
+      // For any other property we always add it to the queue and then we
+      // filter it out using the whitelist during the commit.
+      (updatePayload = updatePayload || []).push(propKey, nextProp);
     }
   }
+  if (styleUpdates) {
+    (updatePayload = updatePayload || []).push(STYLE, styleUpdates);
+  }
+  return updatePayload;
 }
 
-var ReactDOMFiberEntry = ReactDOMFiber;
+// Apply the diff.
+function updateProperties$1(domElement, updatePayload, tag, lastRawProps, nextRawProps) {
+  // Update checked *before* name.
+  // In the middle of an update, it is possible to have multiple checked.
+  // When a checked radio tries to change name, browser makes another radio's checked false.
+  if (tag === 'input' && nextRawProps.type === 'radio' && nextRawProps.name != null) {
+    updateChecked(domElement, nextRawProps);
+  }
 
-module.exports = ReactDOMFiberEntry;
+  var wasCustomComponentTag = isCustomComponent(tag, lastRawProps);
+  var isCustomComponentTag = isCustomComponent(tag, nextRawProps);
+  // Apply the diff.
+  updateDOMProperties(domElement, updatePayload, wasCustomComponentTag, isCustomComponentTag);
 
-})();
+  // TODO: Ensure that an update gets scheduled if any of the special props
+  // changed.
+  switch (tag) {
+    case 'input':
+      // Update the wrapper around inputs *after* updating props. This has to
+      // happen after `updateDOMProperties`. Otherwise HTML5 input validations
+      // raise warnings and prevent the new value from being assigned.
+      updateWrapper(domElement, nextRawProps);
+      break;
+    case 'textarea':
+      updateWrapper$1(domElement, nextRawProps);
+      break;
+    case 'select':
+      // <select> value update needs to occur after <option> children
+      // reconciliation
+      postUpdateWrapper(domElement, nextRawProps);
+      break;
+  }
 }
 
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
-
-/***/ }),
-/* 49 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
-
+function diffHydratedProperties$1(domElement, tag, rawProps, parentNamespace, rootContainerElement) {
+  {
+    var suppressHydrationWarning = rawProps[SUPPRESS_HYDRATION_WARNING$1] === true;
+    var isCustomComponentTag = isCustomComponent(tag, rawProps);
+    validatePropertiesInDevelopment(tag, rawProps);
+    if (isCustomComponentTag && !didWarnShadyDOM && domElement.shadyRoot) {
+      warning(false, '%s is using shady DOM. Using shady DOM with React can ' + 'cause things to break subtly.', getCurrentFiberOwnerName$1() || 'A component');
+      didWarnShadyDOM = true;
+    }
+  }
 
+  // TODO: Make sure that we check isMounted before firing any of these events.
+  switch (tag) {
+    case 'iframe':
+    case 'object':
+      trapBubbledEvent('topLoad', 'load', domElement);
+      break;
+    case 'video':
+    case 'audio':
+      // Create listener for each media event
+      for (var event in mediaEvents) {
+        if (mediaEvents.hasOwnProperty(event)) {
+          trapBubbledEvent(event, mediaEvents[event], domElement);
+        }
+      }
+      break;
+    case 'source':
+      trapBubbledEvent('topError', 'error', domElement);
+      break;
+    case 'img':
+    case 'image':
+      trapBubbledEvent('topError', 'error', domElement);
+      trapBubbledEvent('topLoad', 'load', domElement);
+      break;
+    case 'form':
+      trapBubbledEvent('topReset', 'reset', domElement);
+      trapBubbledEvent('topSubmit', 'submit', domElement);
+      break;
+    case 'details':
+      trapBubbledEvent('topToggle', 'toggle', domElement);
+      break;
+    case 'input':
+      initWrapperState(domElement, rawProps);
+      trapBubbledEvent('topInvalid', 'invalid', domElement);
+      // For controlled components we always need to ensure we're listening
+      // to onChange. Even if there is no listener.
+      ensureListeningTo(rootContainerElement, 'onChange');
+      break;
+    case 'option':
+      validateProps(domElement, rawProps);
+      break;
+    case 'select':
+      initWrapperState$1(domElement, rawProps);
+      trapBubbledEvent('topInvalid', 'invalid', domElement);
+      // For controlled components we always need to ensure we're listening
+      // to onChange. Even if there is no listener.
+      ensureListeningTo(rootContainerElement, 'onChange');
+      break;
+    case 'textarea':
+      initWrapperState$2(domElement, rawProps);
+      trapBubbledEvent('topInvalid', 'invalid', domElement);
+      // For controlled components we always need to ensure we're listening
+      // to onChange. Even if there is no listener.
+      ensureListeningTo(rootContainerElement, 'onChange');
+      break;
+  }
 
-var hyphenate = __webpack_require__(50);
+  assertValidProps(tag, rawProps, getStack);
 
-var msPattern = /^ms-/;
+  {
+    var extraAttributeNames = new Set();
+    var attributes = domElement.attributes;
+    for (var i = 0; i < attributes.length; i++) {
+      var name = attributes[i].name.toLowerCase();
+      switch (name) {
+        // Built-in SSR attribute is whitelisted
+        case 'data-reactroot':
+          break;
+        // Controlled attributes are not validated
+        // TODO: Only ignore them on controlled tags.
+        case 'value':
+          break;
+        case 'checked':
+          break;
+        case 'selected':
+          break;
+        default:
+          // Intentionally use the original name.
+          // See discussion in https://github.com/facebook/react/pull/10676.
+          extraAttributeNames.add(attributes[i].name);
+      }
+    }
+  }
 
-/**
- * Hyphenates a camelcased CSS property name, for example:
- *
- *   > hyphenateStyleName('backgroundColor')
- *   < "background-color"
- *   > hyphenateStyleName('MozTransition')
- *   < "-moz-transition"
- *   > hyphenateStyleName('msTransition')
- *   < "-ms-transition"
- *
- * As Modernizr suggests (http://modernizr.com/docs/#prefixed), an `ms` prefix
- * is converted to `-ms-`.
- *
- * @param {string} string
- * @return {string}
- */
-function hyphenateStyleName(string) {
-  return hyphenate(string).replace(msPattern, '-ms-');
-}
+  var updatePayload = null;
+  for (var propKey in rawProps) {
+    if (!rawProps.hasOwnProperty(propKey)) {
+      continue;
+    }
+    var nextProp = rawProps[propKey];
+    if (propKey === CHILDREN) {
+      // For text content children we compare against textContent. This
+      // might match additional HTML that is hidden when we read it using
+      // textContent. E.g. "foo" will match "f<span>oo</span>" but that still
+      // satisfies our requirement. Our requirement is not to produce perfect
+      // HTML and attributes. Ideally we should preserve structure but it's
+      // ok not to if the visible content is still enough to indicate what
+      // even listeners these nodes might be wired up to.
+      // TODO: Warn if there is more than a single textNode as a child.
+      // TODO: Should we use domElement.firstChild.nodeValue to compare?
+      if (typeof nextProp === 'string') {
+        if (domElement.textContent !== nextProp) {
+          if (true && !suppressHydrationWarning) {
+            warnForTextDifference(domElement.textContent, nextProp);
+          }
+          updatePayload = [CHILDREN, nextProp];
+        }
+      } else if (typeof nextProp === 'number') {
+        if (domElement.textContent !== '' + nextProp) {
+          if (true && !suppressHydrationWarning) {
+            warnForTextDifference(domElement.textContent, nextProp);
+          }
+          updatePayload = [CHILDREN, '' + nextProp];
+        }
+      }
+    } else if (registrationNameModules.hasOwnProperty(propKey)) {
+      if (nextProp != null) {
+        if (true && typeof nextProp !== 'function') {
+          warnForInvalidEventListener(propKey, nextProp);
+        }
+        ensureListeningTo(rootContainerElement, propKey);
+      }
+    } else {
+      // Validate that the properties correspond to their expected values.
+      var serverValue;
+      var propertyInfo;
+      if (suppressHydrationWarning) {
+        // Don't bother comparing. We're ignoring all these warnings.
+      } else if (propKey === SUPPRESS_CONTENT_EDITABLE_WARNING || propKey === SUPPRESS_HYDRATION_WARNING$1 ||
+      // Controlled attributes are not validated
+      // TODO: Only ignore them on controlled tags.
+      propKey === 'value' || propKey === 'checked' || propKey === 'selected') {
+        // Noop
+      } else if (propKey === DANGEROUSLY_SET_INNER_HTML) {
+        var rawHtml = nextProp ? nextProp[HTML] || '' : '';
+        var serverHTML = domElement.innerHTML;
+        var expectedHTML = normalizeHTML(domElement, rawHtml);
+        if (expectedHTML !== serverHTML) {
+          warnForPropDifference(propKey, serverHTML, expectedHTML);
+        }
+      } else if (propKey === STYLE) {
+        // $FlowFixMe - Should be inferred as not undefined.
+        extraAttributeNames['delete'](propKey);
+        var expectedStyle = createDangerousStringForStyles(nextProp);
+        serverValue = domElement.getAttribute('style');
+        if (expectedStyle !== serverValue) {
+          warnForPropDifference(propKey, serverValue, expectedStyle);
+        }
+      } else if (isCustomComponentTag) {
+        // $FlowFixMe - Should be inferred as not undefined.
+        extraAttributeNames['delete'](propKey.toLowerCase());
+        serverValue = getValueForAttribute(domElement, propKey, nextProp);
 
-module.exports = hyphenateStyleName;
+        if (nextProp !== serverValue) {
+          warnForPropDifference(propKey, serverValue, nextProp);
+        }
+      } else if (shouldSetAttribute(propKey, nextProp)) {
+        if (propertyInfo = getPropertyInfo(propKey)) {
+          // $FlowFixMe - Should be inferred as not undefined.
+          extraAttributeNames['delete'](propertyInfo.attributeName);
+          serverValue = getValueForProperty(domElement, propKey, nextProp);
+        } else {
+          var ownNamespace = parentNamespace;
+          if (ownNamespace === HTML_NAMESPACE) {
+            ownNamespace = getIntrinsicNamespace(tag);
+          }
+          if (ownNamespace === HTML_NAMESPACE) {
+            // $FlowFixMe - Should be inferred as not undefined.
+            extraAttributeNames['delete'](propKey.toLowerCase());
+          } else {
+            // $FlowFixMe - Should be inferred as not undefined.
+            extraAttributeNames['delete'](propKey);
+          }
+          serverValue = getValueForAttribute(domElement, propKey, nextProp);
+        }
 
-/***/ }),
-/* 50 */
-/***/ (function(module, exports, __webpack_require__) {
+        if (nextProp !== serverValue) {
+          warnForPropDifference(propKey, serverValue, nextProp);
+        }
+      }
+    }
+  }
 
-"use strict";
+  {
+    // $FlowFixMe - Should be inferred as not undefined.
+    if (extraAttributeNames.size > 0 && !suppressHydrationWarning) {
+      // $FlowFixMe - Should be inferred as not undefined.
+      warnForExtraAttributes(extraAttributeNames);
+    }
+  }
 
+  switch (tag) {
+    case 'input':
+      // TODO: Make sure we check if this is still unmounted or do any clean
+      // up necessary since we never stop tracking anymore.
+      track(domElement);
+      postMountWrapper(domElement, rawProps);
+      break;
+    case 'textarea':
+      // TODO: Make sure we check if this is still unmounted or do any clean
+      // up necessary since we never stop tracking anymore.
+      track(domElement);
+      postMountWrapper$3(domElement, rawProps);
+      break;
+    case 'select':
+    case 'option':
+      // For input and textarea we current always set the value property at
+      // post mount to force it to diverge from attributes. However, for
+      // option and select we don't quite do the same thing and select
+      // is not resilient to the DOM state changing so we don't do that here.
+      // TODO: Consider not doing this for input and textarea.
+      break;
+    default:
+      if (typeof rawProps.onClick === 'function') {
+        // TODO: This cast may not be sound for SVG, MathML or custom elements.
+        trapClickOnNonInteractiveElement(domElement);
+      }
+      break;
+  }
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
+  return updatePayload;
+}
 
-var _uppercasePattern = /([A-Z])/g;
+function diffHydratedText$1(textNode, text) {
+  var isDifferent = textNode.nodeValue !== text;
+  return isDifferent;
+}
 
-/**
- * Hyphenates a camelcased string, for example:
- *
- *   > hyphenate('backgroundColor')
- *   < "background-color"
- *
- * For CSS style names, use `hyphenateStyleName` instead which works properly
- * with all vendor prefixes, including `ms`.
- *
- * @param {string} string
- * @return {string}
- */
-function hyphenate(string) {
-  return string.replace(_uppercasePattern, '-$1').toLowerCase();
+function warnForUnmatchedText$1(textNode, text) {
+  {
+    warnForTextDifference(textNode.nodeValue, text);
+  }
 }
 
-module.exports = hyphenate;
+function warnForDeletedHydratableElement$1(parentNode, child) {
+  {
+    if (didWarnInvalidHydration) {
+      return;
+    }
+    didWarnInvalidHydration = true;
+    warning(false, 'Did not expect server HTML to contain a <%s> in <%s>.', child.nodeName.toLowerCase(), parentNode.nodeName.toLowerCase());
+  }
+}
 
-/***/ }),
-/* 51 */
-/***/ (function(module, exports, __webpack_require__) {
+function warnForDeletedHydratableText$1(parentNode, child) {
+  {
+    if (didWarnInvalidHydration) {
+      return;
+    }
+    didWarnInvalidHydration = true;
+    warning(false, 'Did not expect server HTML to contain the text node "%s" in <%s>.', child.nodeValue, parentNode.nodeName.toLowerCase());
+  }
+}
 
-"use strict";
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
+function warnForInsertedHydratedElement$1(parentNode, tag, props) {
+  {
+    if (didWarnInvalidHydration) {
+      return;
+    }
+    didWarnInvalidHydration = true;
+    warning(false, 'Expected server HTML to contain a matching <%s> in <%s>.', tag, parentNode.nodeName.toLowerCase());
+  }
+}
 
+function warnForInsertedHydratedText$1(parentNode, text) {
+  {
+    if (text === '') {
+      // We expect to insert empty text nodes since they're not represented in
+      // the HTML.
+      // TODO: Remove this special case if we can just avoid inserting empty
+      // text nodes.
+      return;
+    }
+    if (didWarnInvalidHydration) {
+      return;
+    }
+    didWarnInvalidHydration = true;
+    warning(false, 'Expected server HTML to contain a matching text node for "%s" in <%s>.', text, parentNode.nodeName.toLowerCase());
+  }
+}
 
+function restoreControlledState(domElement, tag, props) {
+  switch (tag) {
+    case 'input':
+      restoreControlledState$1(domElement, props);
+      return;
+    case 'textarea':
+      restoreControlledState$3(domElement, props);
+      return;
+    case 'select':
+      restoreControlledState$2(domElement, props);
+      return;
+  }
+}
 
-var camelize = __webpack_require__(52);
+var ReactDOMFiberComponent = Object.freeze({
+	createElement: createElement$1,
+	createTextNode: createTextNode$1,
+	setInitialProperties: setInitialProperties$1,
+	diffProperties: diffProperties$1,
+	updateProperties: updateProperties$1,
+	diffHydratedProperties: diffHydratedProperties$1,
+	diffHydratedText: diffHydratedText$1,
+	warnForUnmatchedText: warnForUnmatchedText$1,
+	warnForDeletedHydratableElement: warnForDeletedHydratableElement$1,
+	warnForDeletedHydratableText: warnForDeletedHydratableText$1,
+	warnForInsertedHydratedElement: warnForInsertedHydratedElement$1,
+	warnForInsertedHydratedText: warnForInsertedHydratedText$1,
+	restoreControlledState: restoreControlledState
+});
 
-var msPattern = /^-ms-/;
+// TODO: direct imports like some-package/src/* are bad. Fix me.
+var getCurrentFiberStackAddendum$6 = ReactDebugCurrentFiber.getCurrentFiberStackAddendum;
 
-/**
- * Camelcases a hyphenated CSS property name, for example:
- *
- *   > camelizeStyleName('background-color')
- *   < "backgroundColor"
- *   > camelizeStyleName('-moz-transition')
- *   < "MozTransition"
- *   > camelizeStyleName('-ms-transition')
- *   < "msTransition"
- *
- * As Andi Smith suggests
- * (http://www.andismith.com/blog/2012/02/modernizr-prefixed/), an `-ms` prefix
- * is converted to lowercase `ms`.
- *
- * @param {string} string
- * @return {string}
- */
-function camelizeStyleName(string) {
-  return camelize(string.replace(msPattern, 'ms-'));
-}
+var validateDOMNesting = emptyFunction;
 
-module.exports = camelizeStyleName;
+{
+  // This validation code was written based on the HTML5 parsing spec:
+  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
+  //
+  // Note: this does not catch all invalid nesting, nor does it try to (as it's
+  // not clear what practical benefit doing so provides); instead, we warn only
+  // for cases where the parser will give a parse tree differing from what React
+  // intended. For example, <b><div></div></b> is invalid but we don't warn
+  // because it still parses correctly; we do warn for other cases like nested
+  // <p> tags where the beginning of the second element implicitly closes the
+  // first, causing a confusing mess.
 
-/***/ }),
-/* 52 */
-/***/ (function(module, exports, __webpack_require__) {
+  // https://html.spec.whatwg.org/multipage/syntax.html#special
+  var specialTags = ['address', 'applet', 'area', 'article', 'aside', 'base', 'basefont', 'bgsound', 'blockquote', 'body', 'br', 'button', 'caption', 'center', 'col', 'colgroup', 'dd', 'details', 'dir', 'div', 'dl', 'dt', 'embed', 'fieldset', 'figcaption', 'figure', 'footer', 'form', 'frame', 'frameset', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'iframe', 'img', 'input', 'isindex', 'li', 'link', 'listing', 'main', 'marquee', 'menu', 'menuitem', 'meta', 'nav', 'noembed', 'noframes', 'noscript', 'object', 'ol', 'p', 'param', 'plaintext', 'pre', 'script', 'section', 'select', 'source', 'style', 'summary', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'title', 'tr', 'track', 'ul', 'wbr', 'xmp'];
 
-"use strict";
+  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-scope
+  var inScopeTags = ['applet', 'caption', 'html', 'table', 'td', 'th', 'marquee', 'object', 'template',
 
+  // https://html.spec.whatwg.org/multipage/syntax.html#html-integration-point
+  // TODO: Distinguish by namespace here -- for <title>, including it here
+  // errs on the side of fewer warnings
+  'foreignObject', 'desc', 'title'];
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
+  // https://html.spec.whatwg.org/multipage/syntax.html#has-an-element-in-button-scope
+  var buttonScopeTags = inScopeTags.concat(['button']);
 
-var _hyphenPattern = /-(.)/g;
+  // https://html.spec.whatwg.org/multipage/syntax.html#generate-implied-end-tags
+  var impliedEndTags = ['dd', 'dt', 'li', 'option', 'optgroup', 'p', 'rp', 'rt'];
 
-/**
- * Camelcases a hyphenated string, for example:
- *
- *   > camelize('background-color')
- *   < "backgroundColor"
- *
- * @param {string} string
- * @return {string}
- */
-function camelize(string) {
-  return string.replace(_hyphenPattern, function (_, character) {
-    return character.toUpperCase();
-  });
-}
+  var emptyAncestorInfo = {
+    current: null,
 
-module.exports = camelize;
+    formTag: null,
+    aTagInScope: null,
+    buttonTagInScope: null,
+    nobrTagInScope: null,
+    pTagInButtonScope: null,
 
-/***/ }),
-/* 53 */
-/***/ (function(module, exports, __webpack_require__) {
+    listItemTagAutoclosing: null,
+    dlItemTagAutoclosing: null
+  };
 
-"use strict";
+  var updatedAncestorInfo$1 = function (oldInfo, tag, instance) {
+    var ancestorInfo = _assign({}, oldInfo || emptyAncestorInfo);
+    var info = { tag: tag, instance: instance };
 
+    if (inScopeTags.indexOf(tag) !== -1) {
+      ancestorInfo.aTagInScope = null;
+      ancestorInfo.buttonTagInScope = null;
+      ancestorInfo.nobrTagInScope = null;
+    }
+    if (buttonScopeTags.indexOf(tag) !== -1) {
+      ancestorInfo.pTagInButtonScope = null;
+    }
 
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
+    // See rules for 'li', 'dd', 'dt' start tags in
+    // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
+    if (specialTags.indexOf(tag) !== -1 && tag !== 'address' && tag !== 'div' && tag !== 'p') {
+      ancestorInfo.listItemTagAutoclosing = null;
+      ancestorInfo.dlItemTagAutoclosing = null;
+    }
 
-var performance = __webpack_require__(54);
+    ancestorInfo.current = info;
 
-var performanceNow;
+    if (tag === 'form') {
+      ancestorInfo.formTag = info;
+    }
+    if (tag === 'a') {
+      ancestorInfo.aTagInScope = info;
+    }
+    if (tag === 'button') {
+      ancestorInfo.buttonTagInScope = info;
+    }
+    if (tag === 'nobr') {
+      ancestorInfo.nobrTagInScope = info;
+    }
+    if (tag === 'p') {
+      ancestorInfo.pTagInButtonScope = info;
+    }
+    if (tag === 'li') {
+      ancestorInfo.listItemTagAutoclosing = info;
+    }
+    if (tag === 'dd' || tag === 'dt') {
+      ancestorInfo.dlItemTagAutoclosing = info;
+    }
 
-/**
- * Detect if we can use `window.performance.now()` and gracefully fallback to
- * `Date.now()` if it doesn't exist. We need to support Firefox < 15 for now
- * because of Facebook's testing infrastructure.
- */
-if (performance.now) {
-  performanceNow = function performanceNow() {
-    return performance.now();
-  };
-} else {
-  performanceNow = function performanceNow() {
-    return Date.now();
+    return ancestorInfo;
   };
-}
-
-module.exports = performanceNow;
 
-/***/ }),
-/* 54 */
-/***/ (function(module, exports, __webpack_require__) {
+  /**
+   * Returns whether
+   */
+  var isTagValidWithParent = function (tag, parentTag) {
+    // First, let's check if we're in an unusual parsing mode...
+    switch (parentTag) {
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inselect
+      case 'select':
+        return tag === 'option' || tag === 'optgroup' || tag === '#text';
+      case 'optgroup':
+        return tag === 'option' || tag === '#text';
+      // Strictly speaking, seeing an <option> doesn't mean we're in a <select>
+      // but
+      case 'option':
+        return tag === '#text';
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intd
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incaption
+      // No special behavior since these rules fall back to "in body" mode for
+      // all except special table nodes which cause bad parsing behavior anyway.
 
-"use strict";
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intr
+      case 'tr':
+        return tag === 'th' || tag === 'td' || tag === 'style' || tag === 'script' || tag === 'template';
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intbody
+      case 'tbody':
+      case 'thead':
+      case 'tfoot':
+        return tag === 'tr' || tag === 'style' || tag === 'script' || tag === 'template';
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-incolgroup
+      case 'colgroup':
+        return tag === 'col' || tag === 'template';
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-intable
+      case 'table':
+        return tag === 'caption' || tag === 'colgroup' || tag === 'tbody' || tag === 'tfoot' || tag === 'thead' || tag === 'style' || tag === 'script' || tag === 'template';
+      // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inhead
+      case 'head':
+        return tag === 'base' || tag === 'basefont' || tag === 'bgsound' || tag === 'link' || tag === 'meta' || tag === 'title' || tag === 'noscript' || tag === 'noframes' || tag === 'style' || tag === 'script' || tag === 'template';
+      // https://html.spec.whatwg.org/multipage/semantics.html#the-html-element
+      case 'html':
+        return tag === 'head' || tag === 'body';
+      case '#document':
+        return tag === 'html';
+    }
 
+    // Probably in the "in body" parsing mode, so we outlaw only tag combos
+    // where the parsing rules cause implicit opens or closes to be added.
+    // https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inbody
+    switch (tag) {
+      case 'h1':
+      case 'h2':
+      case 'h3':
+      case 'h4':
+      case 'h5':
+      case 'h6':
+        return parentTag !== 'h1' && parentTag !== 'h2' && parentTag !== 'h3' && parentTag !== 'h4' && parentTag !== 'h5' && parentTag !== 'h6';
 
+      case 'rp':
+      case 'rt':
+        return impliedEndTags.indexOf(parentTag) === -1;
 
-var ExecutionEnvironment = __webpack_require__(19);
+      case 'body':
+      case 'caption':
+      case 'col':
+      case 'colgroup':
+      case 'frame':
+      case 'head':
+      case 'html':
+      case 'tbody':
+      case 'td':
+      case 'tfoot':
+      case 'th':
+      case 'thead':
+      case 'tr':
+        // These tags are only valid with a few parents that have special child
+        // parsing rules -- if we're down here, then none of those matched and
+        // so we allow it only if we don't know what the parent is, as all other
+        // cases are invalid.
+        return parentTag == null;
+    }
 
-var performance;
+    return true;
+  };
 
-if (ExecutionEnvironment.canUseDOM) {
-  performance = window.performance || window.msPerformance || window.webkitPerformance;
-}
+  /**
+   * Returns whether
+   */
+  var findInvalidAncestorForTag = function (tag, ancestorInfo) {
+    switch (tag) {
+      case 'address':
+      case 'article':
+      case 'aside':
+      case 'blockquote':
+      case 'center':
+      case 'details':
+      case 'dialog':
+      case 'dir':
+      case 'div':
+      case 'dl':
+      case 'fieldset':
+      case 'figcaption':
+      case 'figure':
+      case 'footer':
+      case 'header':
+      case 'hgroup':
+      case 'main':
+      case 'menu':
+      case 'nav':
+      case 'ol':
+      case 'p':
+      case 'section':
+      case 'summary':
+      case 'ul':
+      case 'pre':
+      case 'listing':
+      case 'table':
+      case 'hr':
+      case 'xmp':
+      case 'h1':
+      case 'h2':
+      case 'h3':
+      case 'h4':
+      case 'h5':
+      case 'h6':
+        return ancestorInfo.pTagInButtonScope;
 
-module.exports = performance || {};
+      case 'form':
+        return ancestorInfo.formTag || ancestorInfo.pTagInButtonScope;
 
-/***/ }),
-/* 55 */
-/***/ (function(module, exports, __webpack_require__) {
+      case 'li':
+        return ancestorInfo.listItemTagAutoclosing;
 
-"use strict";
-/* WEBPACK VAR INJECTION */(function(process) {/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
+      case 'dd':
+      case 'dt':
+        return ancestorInfo.dlItemTagAutoclosing;
 
+      case 'button':
+        return ancestorInfo.buttonTagInScope;
 
+      case 'a':
+        // Spec says something about storing a list of markers, but it sounds
+        // equivalent to this check.
+        return ancestorInfo.aTagInScope;
 
-var emptyFunction = __webpack_require__(3);
-var invariant = __webpack_require__(4);
-var warning = __webpack_require__(9);
-var assign = __webpack_require__(7);
+      case 'nobr':
+        return ancestorInfo.nobrTagInScope;
+    }
 
-var ReactPropTypesSecret = __webpack_require__(18);
-var checkPropTypes = __webpack_require__(17);
+    return null;
+  };
 
-module.exports = function(isValidElement, throwOnDirectAccess) {
-  /* global Symbol */
-  var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
-  var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.
+  var didWarn = {};
 
-  /**
-   * Returns the iterator method function contained on the iterable object.
-   *
-   * Be sure to invoke the function with the iterable as context:
-   *
-   *     var iteratorFn = getIteratorFn(myIterable);
-   *     if (iteratorFn) {
-   *       var iterator = iteratorFn.call(myIterable);
-   *       ...
-   *     }
-   *
-   * @param {?object} maybeIterable
-   * @return {?function}
-   */
-  function getIteratorFn(maybeIterable) {
-    var iteratorFn = maybeIterable && (ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]);
-    if (typeof iteratorFn === 'function') {
-      return iteratorFn;
-    }
-  }
+  validateDOMNesting = function (childTag, childText, ancestorInfo) {
+    ancestorInfo = ancestorInfo || emptyAncestorInfo;
+    var parentInfo = ancestorInfo.current;
+    var parentTag = parentInfo && parentInfo.tag;
 
-  /**
-   * Collection of methods that allow declaration and validation of props that are
-   * supplied to React components. Example usage:
-   *
-   *   var Props = require('ReactPropTypes');
-   *   var MyArticle = React.createClass({
-   *     propTypes: {
-   *       // An optional string prop named "description".
-   *       description: Props.string,
-   *
-   *       // A required enum prop named "category".
-   *       category: Props.oneOf(['News','Photos']).isRequired,
-   *
-   *       // A prop named "dialog" that requires an instance of Dialog.
-   *       dialog: Props.instanceOf(Dialog).isRequired
-   *     },
-   *     render: function() { ... }
-   *   });
-   *
-   * A more formal specification of how these methods are used:
-   *
-   *   type := array|bool|func|object|number|string|oneOf([...])|instanceOf(...)
-   *   decl := ReactPropTypes.{type}(.isRequired)?
-   *
-   * Each and every declaration produces a function with the same signature. This
-   * allows the creation of custom validation functions. For example:
-   *
-   *  var MyLink = React.createClass({
-   *    propTypes: {
-   *      // An optional string or URI prop named "href".
-   *      href: function(props, propName, componentName) {
-   *        var propValue = props[propName];
-   *        if (propValue != null && typeof propValue !== 'string' &&
-   *            !(propValue instanceof URI)) {
-   *          return new Error(
-   *            'Expected a string or an URI for ' + propName + ' in ' +
-   *            componentName
-   *          );
-   *        }
-   *      }
-   *    },
-   *    render: function() {...}
-   *  });
-   *
-   * @internal
-   */
+    if (childText != null) {
+      warning(childTag == null, 'validateDOMNesting: when childText is passed, childTag should be null');
+      childTag = '#text';
+    }
 
-  var ANONYMOUS = '<<anonymous>>';
+    var invalidParent = isTagValidWithParent(childTag, parentTag) ? null : parentInfo;
+    var invalidAncestor = invalidParent ? null : findInvalidAncestorForTag(childTag, ancestorInfo);
+    var invalidParentOrAncestor = invalidParent || invalidAncestor;
+    if (!invalidParentOrAncestor) {
+      return;
+    }
 
-  // Important!
-  // Keep this list in sync with production version in `./factoryWithThrowingShims.js`.
-  var ReactPropTypes = {
-    array: createPrimitiveTypeChecker('array'),
-    bool: createPrimitiveTypeChecker('boolean'),
-    func: createPrimitiveTypeChecker('function'),
-    number: createPrimitiveTypeChecker('number'),
-    object: createPrimitiveTypeChecker('object'),
-    string: createPrimitiveTypeChecker('string'),
-    symbol: createPrimitiveTypeChecker('symbol'),
+    var ancestorTag = invalidParentOrAncestor.tag;
+    var addendum = getCurrentFiberStackAddendum$6();
 
-    any: createAnyTypeChecker(),
-    arrayOf: createArrayOfTypeChecker,
-    element: createElementTypeChecker(),
-    instanceOf: createInstanceTypeChecker,
-    node: createNodeChecker(),
-    objectOf: createObjectOfTypeChecker,
-    oneOf: createEnumTypeChecker,
-    oneOfType: createUnionTypeChecker,
-    shape: createShapeTypeChecker,
-    exact: createStrictShapeTypeChecker,
-  };
+    var warnKey = !!invalidParent + '|' + childTag + '|' + ancestorTag + '|' + addendum;
+    if (didWarn[warnKey]) {
+      return;
+    }
+    didWarn[warnKey] = true;
 
-  /**
-   * inlined Object.is polyfill to avoid requiring consumers ship their own
-   * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
-   */
-  /*eslint-disable no-self-compare*/
-  function is(x, y) {
-    // SameValue algorithm
-    if (x === y) {
-      // Steps 1-5, 7-10
-      // Steps 6.b-6.e: +0 != -0
-      return x !== 0 || 1 / x === 1 / y;
+    var tagDisplayName = childTag;
+    var whitespaceInfo = '';
+    if (childTag === '#text') {
+      if (/\S/.test(childText)) {
+        tagDisplayName = 'Text nodes';
+      } else {
+        tagDisplayName = 'Whitespace text nodes';
+        whitespaceInfo = " Make sure you don't have any extra whitespace between tags on " + 'each line of your source code.';
+      }
     } else {
-      // Step 6.a: NaN == NaN
-      return x !== x && y !== y;
+      tagDisplayName = '<' + childTag + '>';
+    }
+
+    if (invalidParent) {
+      var info = '';
+      if (ancestorTag === 'table' && childTag === 'tr') {
+        info += ' Add a <tbody> to your code to match the DOM tree generated by ' + 'the browser.';
+      }
+      warning(false, 'validateDOMNesting(...): %s cannot appear as a child of <%s>.%s%s%s', tagDisplayName, ancestorTag, whitespaceInfo, info, addendum);
+    } else {
+      warning(false, 'validateDOMNesting(...): %s cannot appear as a descendant of ' + '<%s>.%s', tagDisplayName, ancestorTag, addendum);
     }
+  };
+
+  // TODO: turn this into a named export
+  validateDOMNesting.updatedAncestorInfo = updatedAncestorInfo$1;
+
+  // For testing
+  validateDOMNesting.isTagValidInContext = function (tag, ancestorInfo) {
+    ancestorInfo = ancestorInfo || emptyAncestorInfo;
+    var parentInfo = ancestorInfo.current;
+    var parentTag = parentInfo && parentInfo.tag;
+    return isTagValidWithParent(tag, parentTag) && !findInvalidAncestorForTag(tag, ancestorInfo);
+  };
+}
+
+var validateDOMNesting$1 = validateDOMNesting;
+
+// TODO: direct imports like some-package/src/* are bad. Fix me.
+var createElement = createElement$1;
+var createTextNode = createTextNode$1;
+var setInitialProperties = setInitialProperties$1;
+var diffProperties = diffProperties$1;
+var updateProperties = updateProperties$1;
+var diffHydratedProperties = diffHydratedProperties$1;
+var diffHydratedText = diffHydratedText$1;
+var warnForUnmatchedText = warnForUnmatchedText$1;
+var warnForDeletedHydratableElement = warnForDeletedHydratableElement$1;
+var warnForDeletedHydratableText = warnForDeletedHydratableText$1;
+var warnForInsertedHydratedElement = warnForInsertedHydratedElement$1;
+var warnForInsertedHydratedText = warnForInsertedHydratedText$1;
+var updatedAncestorInfo = validateDOMNesting$1.updatedAncestorInfo;
+var precacheFiberNode = precacheFiberNode$1;
+var updateFiberProps = updateFiberProps$1;
+
+
+{
+  var SUPPRESS_HYDRATION_WARNING = 'suppressHydrationWarning';
+  if (typeof Map !== 'function' || Map.prototype == null || typeof Map.prototype.forEach !== 'function' || typeof Set !== 'function' || Set.prototype == null || typeof Set.prototype.clear !== 'function' || typeof Set.prototype.forEach !== 'function') {
+    warning(false, 'React depends on Map and Set built-in types. Make sure that you load a ' + 'polyfill in older browsers. http://fb.me/react-polyfills');
   }
-  /*eslint-enable no-self-compare*/
+}
 
-  /**
-   * We use an Error-like object for backward compatibility as people may call
-   * PropTypes directly and inspect their output. However, we don't use real
-   * Errors anymore. We don't inspect their stack anyway, and creating them
-   * is prohibitively expensive if they are created too often, such as what
-   * happens in oneOfType() for any type before the one that matched.
-   */
-  function PropTypeError(message) {
-    this.message = message;
-    this.stack = '';
+injection$3.injectFiberControlledHostComponent(ReactDOMFiberComponent);
+
+var eventsEnabled = null;
+var selectionInformation = null;
+
+/**
+ * True if the supplied DOM node is a valid node element.
+ *
+ * @param {?DOMElement} node The candidate DOM node.
+ * @return {boolean} True if the DOM is a valid DOM node.
+ * @internal
+ */
+function isValidContainer(node) {
+  return !!(node && (node.nodeType === ELEMENT_NODE || node.nodeType === DOCUMENT_NODE || node.nodeType === DOCUMENT_FRAGMENT_NODE || node.nodeType === COMMENT_NODE && node.nodeValue === ' react-mount-point-unstable '));
+}
+
+function getReactRootElementInContainer(container) {
+  if (!container) {
+    return null;
   }
-  // Make `instanceof Error` still work for returned errors.
-  PropTypeError.prototype = Error.prototype;
 
-  function createChainableTypeChecker(validate) {
-    if (process.env.NODE_ENV !== 'production') {
-      var manualPropTypeCallCache = {};
-      var manualPropTypeWarningCount = 0;
-    }
-    function checkType(isRequired, props, propName, componentName, location, propFullName, secret) {
-      componentName = componentName || ANONYMOUS;
-      propFullName = propFullName || propName;
+  if (container.nodeType === DOCUMENT_NODE) {
+    return container.documentElement;
+  } else {
+    return container.firstChild;
+  }
+}
 
-      if (secret !== ReactPropTypesSecret) {
-        if (throwOnDirectAccess) {
-          // New behavior only for users of `prop-types` package
-          invariant(
-            false,
-            'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
-            'Use `PropTypes.checkPropTypes()` to call them. ' +
-            'Read more at http://fb.me/use-check-prop-types'
-          );
-        } else if (process.env.NODE_ENV !== 'production' && typeof console !== 'undefined') {
-          // Old behavior for people using React.PropTypes
-          var cacheKey = componentName + ':' + propName;
-          if (
-            !manualPropTypeCallCache[cacheKey] &&
-            // Avoid spamming the console because they are often not actionable except for lib authors
-            manualPropTypeWarningCount < 3
-          ) {
-            warning(
-              false,
-              'You are manually calling a React.PropTypes validation ' +
-              'function for the `%s` prop on `%s`. This is deprecated ' +
-              'and will throw in the standalone `prop-types` package. ' +
-              'You may be seeing this warning due to a third-party PropTypes ' +
-              'library. See https://fb.me/react-warning-dont-call-proptypes ' + 'for details.',
-              propFullName,
-              componentName
-            );
-            manualPropTypeCallCache[cacheKey] = true;
-            manualPropTypeWarningCount++;
-          }
+function shouldHydrateDueToLegacyHeuristic(container) {
+  var rootElement = getReactRootElementInContainer(container);
+  return !!(rootElement && rootElement.nodeType === ELEMENT_NODE && rootElement.hasAttribute(ROOT_ATTRIBUTE_NAME));
+}
+
+function shouldAutoFocusHostComponent(type, props) {
+  switch (type) {
+    case 'button':
+    case 'input':
+    case 'select':
+    case 'textarea':
+      return !!props.autoFocus;
+  }
+  return false;
+}
+
+var DOMRenderer = reactReconciler({
+  getRootHostContext: function (rootContainerInstance) {
+    var type = void 0;
+    var namespace = void 0;
+    var nodeType = rootContainerInstance.nodeType;
+    switch (nodeType) {
+      case DOCUMENT_NODE:
+      case DOCUMENT_FRAGMENT_NODE:
+        {
+          type = nodeType === DOCUMENT_NODE ? '#document' : '#fragment';
+          var root = rootContainerInstance.documentElement;
+          namespace = root ? root.namespaceURI : getChildNamespace(null, '');
+          break;
         }
-      }
-      if (props[propName] == null) {
-        if (isRequired) {
-          if (props[propName] === null) {
-            return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required ' + ('in `' + componentName + '`, but its value is `null`.'));
-          }
-          return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required in ' + ('`' + componentName + '`, but its value is `undefined`.'));
+      default:
+        {
+          var container = nodeType === COMMENT_NODE ? rootContainerInstance.parentNode : rootContainerInstance;
+          var ownNamespace = container.namespaceURI || null;
+          type = container.tagName;
+          namespace = getChildNamespace(ownNamespace, type);
+          break;
         }
-        return null;
-      } else {
-        return validate(props, propName, componentName, location, propFullName);
+    }
+    {
+      var validatedTag = type.toLowerCase();
+      var _ancestorInfo = updatedAncestorInfo(null, validatedTag, null);
+      return { namespace: namespace, ancestorInfo: _ancestorInfo };
+    }
+    return namespace;
+  },
+  getChildHostContext: function (parentHostContext, type) {
+    {
+      var parentHostContextDev = parentHostContext;
+      var _namespace = getChildNamespace(parentHostContextDev.namespace, type);
+      var _ancestorInfo2 = updatedAncestorInfo(parentHostContextDev.ancestorInfo, type, null);
+      return { namespace: _namespace, ancestorInfo: _ancestorInfo2 };
+    }
+    var parentNamespace = parentHostContext;
+    return getChildNamespace(parentNamespace, type);
+  },
+  getPublicInstance: function (instance) {
+    return instance;
+  },
+  prepareForCommit: function () {
+    eventsEnabled = isEnabled();
+    selectionInformation = getSelectionInformation();
+    setEnabled(false);
+  },
+  resetAfterCommit: function () {
+    restoreSelection(selectionInformation);
+    selectionInformation = null;
+    setEnabled(eventsEnabled);
+    eventsEnabled = null;
+  },
+  createInstance: function (type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
+    var parentNamespace = void 0;
+    {
+      // TODO: take namespace into account when validating.
+      var hostContextDev = hostContext;
+      validateDOMNesting$1(type, null, hostContextDev.ancestorInfo);
+      if (typeof props.children === 'string' || typeof props.children === 'number') {
+        var string = '' + props.children;
+        var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type, null);
+        validateDOMNesting$1(null, string, ownAncestorInfo);
+      }
+      parentNamespace = hostContextDev.namespace;
+    }
+    var domElement = createElement(type, props, rootContainerInstance, parentNamespace);
+    precacheFiberNode(internalInstanceHandle, domElement);
+    updateFiberProps(domElement, props);
+    return domElement;
+  },
+  appendInitialChild: function (parentInstance, child) {
+    parentInstance.appendChild(child);
+  },
+  finalizeInitialChildren: function (domElement, type, props, rootContainerInstance) {
+    setInitialProperties(domElement, type, props, rootContainerInstance);
+    return shouldAutoFocusHostComponent(type, props);
+  },
+  prepareUpdate: function (domElement, type, oldProps, newProps, rootContainerInstance, hostContext) {
+    {
+      var hostContextDev = hostContext;
+      if (typeof newProps.children !== typeof oldProps.children && (typeof newProps.children === 'string' || typeof newProps.children === 'number')) {
+        var string = '' + newProps.children;
+        var ownAncestorInfo = updatedAncestorInfo(hostContextDev.ancestorInfo, type, null);
+        validateDOMNesting$1(null, string, ownAncestorInfo);
       }
     }
+    return diffProperties(domElement, type, oldProps, newProps, rootContainerInstance);
+  },
+  shouldSetTextContent: function (type, props) {
+    return type === 'textarea' || typeof props.children === 'string' || typeof props.children === 'number' || typeof props.dangerouslySetInnerHTML === 'object' && props.dangerouslySetInnerHTML !== null && typeof props.dangerouslySetInnerHTML.__html === 'string';
+  },
+  shouldDeprioritizeSubtree: function (type, props) {
+    return !!props.hidden;
+  },
+  createTextInstance: function (text, rootContainerInstance, hostContext, internalInstanceHandle) {
+    {
+      var hostContextDev = hostContext;
+      validateDOMNesting$1(null, text, hostContextDev.ancestorInfo);
+    }
+    var textNode = createTextNode(text, rootContainerInstance);
+    precacheFiberNode(internalInstanceHandle, textNode);
+    return textNode;
+  },
 
-    var chainedCheckType = checkType.bind(null, false);
-    chainedCheckType.isRequired = checkType.bind(null, true);
-
-    return chainedCheckType;
-  }
 
-  function createPrimitiveTypeChecker(expectedType) {
-    function validate(props, propName, componentName, location, propFullName, secret) {
-      var propValue = props[propName];
-      var propType = getPropType(propValue);
-      if (propType !== expectedType) {
-        // `propValue` being instance of, say, date/regexp, pass the 'object'
-        // check, but we can offer a more precise error message here rather than
-        // 'of type `object`'.
-        var preciseType = getPreciseType(propValue);
+  now: now,
 
-        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + preciseType + '` supplied to `' + componentName + '`, expected ') + ('`' + expectedType + '`.'));
+  mutation: {
+    commitMount: function (domElement, type, newProps, internalInstanceHandle) {
+      domElement.focus();
+    },
+    commitUpdate: function (domElement, updatePayload, type, oldProps, newProps, internalInstanceHandle) {
+      // Update the props handle so that we know which props are the ones with
+      // with current event handlers.
+      updateFiberProps(domElement, newProps);
+      // Apply the diff to the DOM node.
+      updateProperties(domElement, updatePayload, type, oldProps, newProps);
+    },
+    resetTextContent: function (domElement) {
+      domElement.textContent = '';
+    },
+    commitTextUpdate: function (textInstance, oldText, newText) {
+      textInstance.nodeValue = newText;
+    },
+    appendChild: function (parentInstance, child) {
+      parentInstance.appendChild(child);
+    },
+    appendChildToContainer: function (container, child) {
+      if (container.nodeType === COMMENT_NODE) {
+        container.parentNode.insertBefore(child, container);
+      } else {
+        container.appendChild(child);
+      }
+    },
+    insertBefore: function (parentInstance, child, beforeChild) {
+      parentInstance.insertBefore(child, beforeChild);
+    },
+    insertInContainerBefore: function (container, child, beforeChild) {
+      if (container.nodeType === COMMENT_NODE) {
+        container.parentNode.insertBefore(child, beforeChild);
+      } else {
+        container.insertBefore(child, beforeChild);
+      }
+    },
+    removeChild: function (parentInstance, child) {
+      parentInstance.removeChild(child);
+    },
+    removeChildFromContainer: function (container, child) {
+      if (container.nodeType === COMMENT_NODE) {
+        container.parentNode.removeChild(child);
+      } else {
+        container.removeChild(child);
       }
-      return null;
     }
-    return createChainableTypeChecker(validate);
-  }
-
-  function createAnyTypeChecker() {
-    return createChainableTypeChecker(emptyFunction.thatReturnsNull);
-  }
+  },
 
-  function createArrayOfTypeChecker(typeChecker) {
-    function validate(props, propName, componentName, location, propFullName) {
-      if (typeof typeChecker !== 'function') {
-        return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside arrayOf.');
+  hydration: {
+    canHydrateInstance: function (instance, type, props) {
+      if (instance.nodeType !== ELEMENT_NODE || type.toLowerCase() !== instance.nodeName.toLowerCase()) {
+        return null;
       }
-      var propValue = props[propName];
-      if (!Array.isArray(propValue)) {
-        var propType = getPropType(propValue);
-        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an array.'));
+      // This has now been refined to an element node.
+      return instance;
+    },
+    canHydrateTextInstance: function (instance, text) {
+      if (text === '' || instance.nodeType !== TEXT_NODE) {
+        // Empty strings are not parsed by HTML so there won't be a correct match here.
+        return null;
       }
-      for (var i = 0; i < propValue.length; i++) {
-        var error = typeChecker(propValue, i, componentName, location, propFullName + '[' + i + ']', ReactPropTypesSecret);
-        if (error instanceof Error) {
-          return error;
-        }
+      // This has now been refined to a text node.
+      return instance;
+    },
+    getNextHydratableSibling: function (instance) {
+      var node = instance.nextSibling;
+      // Skip non-hydratable nodes.
+      while (node && node.nodeType !== ELEMENT_NODE && node.nodeType !== TEXT_NODE) {
+        node = node.nextSibling;
       }
-      return null;
-    }
-    return createChainableTypeChecker(validate);
-  }
-
-  function createElementTypeChecker() {
-    function validate(props, propName, componentName, location, propFullName) {
-      var propValue = props[propName];
-      if (!isValidElement(propValue)) {
-        var propType = getPropType(propValue);
-        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected a single ReactElement.'));
+      return node;
+    },
+    getFirstHydratableChild: function (parentInstance) {
+      var next = parentInstance.firstChild;
+      // Skip non-hydratable nodes.
+      while (next && next.nodeType !== ELEMENT_NODE && next.nodeType !== TEXT_NODE) {
+        next = next.nextSibling;
       }
-      return null;
-    }
-    return createChainableTypeChecker(validate);
-  }
-
-  function createInstanceTypeChecker(expectedClass) {
-    function validate(props, propName, componentName, location, propFullName) {
-      if (!(props[propName] instanceof expectedClass)) {
-        var expectedClassName = expectedClass.name || ANONYMOUS;
-        var actualClassName = getClassName(props[propName]);
-        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + actualClassName + '` supplied to `' + componentName + '`, expected ') + ('instance of `' + expectedClassName + '`.'));
+      return next;
+    },
+    hydrateInstance: function (instance, type, props, rootContainerInstance, hostContext, internalInstanceHandle) {
+      precacheFiberNode(internalInstanceHandle, instance);
+      // TODO: Possibly defer this until the commit phase where all the events
+      // get attached.
+      updateFiberProps(instance, props);
+      var parentNamespace = void 0;
+      {
+        var hostContextDev = hostContext;
+        parentNamespace = hostContextDev.namespace;
       }
-      return null;
-    }
-    return createChainableTypeChecker(validate);
-  }
-
-  function createEnumTypeChecker(expectedValues) {
-    if (!Array.isArray(expectedValues)) {
-      process.env.NODE_ENV !== 'production' ? warning(false, 'Invalid argument supplied to oneOf, expected an instance of array.') : void 0;
-      return emptyFunction.thatReturnsNull;
-    }
-
-    function validate(props, propName, componentName, location, propFullName) {
-      var propValue = props[propName];
-      for (var i = 0; i < expectedValues.length; i++) {
-        if (is(propValue, expectedValues[i])) {
-          return null;
-        }
+      return diffHydratedProperties(instance, type, props, parentNamespace, rootContainerInstance);
+    },
+    hydrateTextInstance: function (textInstance, text, internalInstanceHandle) {
+      precacheFiberNode(internalInstanceHandle, textInstance);
+      return diffHydratedText(textInstance, text);
+    },
+    didNotMatchHydratedContainerTextInstance: function (parentContainer, textInstance, text) {
+      {
+        warnForUnmatchedText(textInstance, text);
       }
-
-      var valuesString = JSON.stringify(expectedValues);
-      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of value `' + propValue + '` ' + ('supplied to `' + componentName + '`, expected one of ' + valuesString + '.'));
-    }
-    return createChainableTypeChecker(validate);
-  }
-
-  function createObjectOfTypeChecker(typeChecker) {
-    function validate(props, propName, componentName, location, propFullName) {
-      if (typeof typeChecker !== 'function') {
-        return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside objectOf.');
+    },
+    didNotMatchHydratedTextInstance: function (parentType, parentProps, parentInstance, textInstance, text) {
+      if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
+        warnForUnmatchedText(textInstance, text);
       }
-      var propValue = props[propName];
-      var propType = getPropType(propValue);
-      if (propType !== 'object') {
-        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an object.'));
+    },
+    didNotHydrateContainerInstance: function (parentContainer, instance) {
+      {
+        if (instance.nodeType === 1) {
+          warnForDeletedHydratableElement(parentContainer, instance);
+        } else {
+          warnForDeletedHydratableText(parentContainer, instance);
+        }
       }
-      for (var key in propValue) {
-        if (propValue.hasOwnProperty(key)) {
-          var error = typeChecker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
-          if (error instanceof Error) {
-            return error;
-          }
+    },
+    didNotHydrateInstance: function (parentType, parentProps, parentInstance, instance) {
+      if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
+        if (instance.nodeType === 1) {
+          warnForDeletedHydratableElement(parentInstance, instance);
+        } else {
+          warnForDeletedHydratableText(parentInstance, instance);
         }
       }
-      return null;
+    },
+    didNotFindHydratableContainerInstance: function (parentContainer, type, props) {
+      {
+        warnForInsertedHydratedElement(parentContainer, type, props);
+      }
+    },
+    didNotFindHydratableContainerTextInstance: function (parentContainer, text) {
+      {
+        warnForInsertedHydratedText(parentContainer, text);
+      }
+    },
+    didNotFindHydratableInstance: function (parentType, parentProps, parentInstance, type, props) {
+      if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
+        warnForInsertedHydratedElement(parentInstance, type, props);
+      }
+    },
+    didNotFindHydratableTextInstance: function (parentType, parentProps, parentInstance, text) {
+      if (true && parentProps[SUPPRESS_HYDRATION_WARNING] !== true) {
+        warnForInsertedHydratedText(parentInstance, text);
+      }
     }
-    return createChainableTypeChecker(validate);
-  }
+  },
 
-  function createUnionTypeChecker(arrayOfTypeCheckers) {
-    if (!Array.isArray(arrayOfTypeCheckers)) {
-      process.env.NODE_ENV !== 'production' ? warning(false, 'Invalid argument supplied to oneOfType, expected an instance of array.') : void 0;
-      return emptyFunction.thatReturnsNull;
-    }
+  scheduleDeferredCallback: rIC,
+  cancelDeferredCallback: cIC,
 
-    for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
-      var checker = arrayOfTypeCheckers[i];
-      if (typeof checker !== 'function') {
-        warning(
-          false,
-          'Invalid argument supplied to oneOfType. Expected an array of check functions, but ' +
-          'received %s at index %s.',
-          getPostfixForTypeWarning(checker),
-          i
-        );
-        return emptyFunction.thatReturnsNull;
-      }
-    }
+  useSyncScheduling: !enableAsyncSchedulingByDefaultInReactDOM
+});
 
-    function validate(props, propName, componentName, location, propFullName) {
-      for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
-        var checker = arrayOfTypeCheckers[i];
-        if (checker(props, propName, componentName, location, propFullName, ReactPropTypesSecret) == null) {
-          return null;
-        }
-      }
+injection$4.injectFiberBatchedUpdates(DOMRenderer.batchedUpdates);
 
-      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`.'));
-    }
-    return createChainableTypeChecker(validate);
-  }
+var warnedAboutHydrateAPI = false;
 
-  function createNodeChecker() {
-    function validate(props, propName, componentName, location, propFullName) {
-      if (!isNode(props[propName])) {
-        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`, expected a ReactNode.'));
-      }
-      return null;
-    }
-    return createChainableTypeChecker(validate);
-  }
+function renderSubtreeIntoContainer(parentComponent, children, container, forceHydrate, callback) {
+  !isValidContainer(container) ? invariant(false, 'Target container is not a DOM element.') : void 0;
 
-  function createShapeTypeChecker(shapeTypes) {
-    function validate(props, propName, componentName, location, propFullName) {
-      var propValue = props[propName];
-      var propType = getPropType(propValue);
-      if (propType !== 'object') {
-        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
-      }
-      for (var key in shapeTypes) {
-        var checker = shapeTypes[key];
-        if (!checker) {
-          continue;
-        }
-        var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
-        if (error) {
-          return error;
-        }
+  {
+    if (container._reactRootContainer && container.nodeType !== COMMENT_NODE) {
+      var hostInstance = DOMRenderer.findHostInstanceWithNoPortals(container._reactRootContainer.current);
+      if (hostInstance) {
+        warning(hostInstance.parentNode === container, 'render(...): It looks like the React-rendered content of this ' + 'container was removed without using React. This is not ' + 'supported and will cause errors. Instead, call ' + 'ReactDOM.unmountComponentAtNode to empty a container.');
       }
-      return null;
     }
-    return createChainableTypeChecker(validate);
+
+    var isRootRenderedBySomeReact = !!container._reactRootContainer;
+    var rootEl = getReactRootElementInContainer(container);
+    var hasNonRootReactChild = !!(rootEl && getInstanceFromNode$1(rootEl));
+
+    warning(!hasNonRootReactChild || isRootRenderedBySomeReact, 'render(...): Replacing React-rendered children with a new root ' + 'component. If you intended to update the children of this node, ' + 'you should instead have the existing children update their state ' + 'and render the new components instead of calling ReactDOM.render.');
+
+    warning(container.nodeType !== ELEMENT_NODE || !container.tagName || container.tagName.toUpperCase() !== 'BODY', 'render(): Rendering components directly into document.body is ' + 'discouraged, since its children are often manipulated by third-party ' + 'scripts and browser extensions. This may lead to subtle ' + 'reconciliation issues. Try rendering into a container element created ' + 'for your app.');
   }
 
-  function createStrictShapeTypeChecker(shapeTypes) {
-    function validate(props, propName, componentName, location, propFullName) {
-      var propValue = props[propName];
-      var propType = getPropType(propValue);
-      if (propType !== 'object') {
-        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
-      }
-      // We need to check all keys in case some are required but missing from
-      // props.
-      var allKeys = assign({}, props[propName], shapeTypes);
-      for (var key in allKeys) {
-        var checker = shapeTypes[key];
-        if (!checker) {
-          return new PropTypeError(
-            'Invalid ' + location + ' `' + propFullName + '` key `' + key + '` supplied to `' + componentName + '`.' +
-            '\nBad object: ' + JSON.stringify(props[propName], null, '  ') +
-            '\nValid keys: ' +  JSON.stringify(Object.keys(shapeTypes), null, '  ')
-          );
-        }
-        var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
-        if (error) {
-          return error;
+  var root = container._reactRootContainer;
+  if (!root) {
+    var shouldHydrate = forceHydrate || shouldHydrateDueToLegacyHeuristic(container);
+    // First clear any existing content.
+    if (!shouldHydrate) {
+      var warned = false;
+      var rootSibling = void 0;
+      while (rootSibling = container.lastChild) {
+        {
+          if (!warned && rootSibling.nodeType === ELEMENT_NODE && rootSibling.hasAttribute(ROOT_ATTRIBUTE_NAME)) {
+            warned = true;
+            warning(false, 'render(): Target node has markup rendered by React, but there ' + 'are unrelated nodes as well. This is most commonly caused by ' + 'white-space inserted around server-rendered markup.');
+          }
         }
+        container.removeChild(rootSibling);
       }
-      return null;
     }
-
-    return createChainableTypeChecker(validate);
+    {
+      if (shouldHydrate && !forceHydrate && !warnedAboutHydrateAPI) {
+        warnedAboutHydrateAPI = true;
+        lowPriorityWarning$1(false, 'render(): Calling ReactDOM.render() to hydrate server-rendered markup ' + 'will stop working in React v17. Replace the ReactDOM.render() call ' + 'with ReactDOM.hydrate() if you want React to attach to the server HTML.');
+      }
+    }
+    var newRoot = DOMRenderer.createContainer(container, shouldHydrate);
+    root = container._reactRootContainer = newRoot;
+    // Initial mount should not be batched.
+    DOMRenderer.unbatchedUpdates(function () {
+      DOMRenderer.updateContainer(children, newRoot, parentComponent, callback);
+    });
+  } else {
+    DOMRenderer.updateContainer(children, root, parentComponent, callback);
   }
+  return DOMRenderer.getPublicRootInstance(root);
+}
 
-  function isNode(propValue) {
-    switch (typeof propValue) {
-      case 'number':
-      case 'string':
-      case 'undefined':
-        return true;
-      case 'boolean':
-        return !propValue;
-      case 'object':
-        if (Array.isArray(propValue)) {
-          return propValue.every(isNode);
-        }
-        if (propValue === null || isValidElement(propValue)) {
-          return true;
-        }
+function createPortal(children, container) {
+  var key = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
 
-        var iteratorFn = getIteratorFn(propValue);
-        if (iteratorFn) {
-          var iterator = iteratorFn.call(propValue);
-          var step;
-          if (iteratorFn !== propValue.entries) {
-            while (!(step = iterator.next()).done) {
-              if (!isNode(step.value)) {
-                return false;
-              }
-            }
-          } else {
-            // Iterator will provide entry [k,v] tuples rather than values.
-            while (!(step = iterator.next()).done) {
-              var entry = step.value;
-              if (entry) {
-                if (!isNode(entry[1])) {
-                  return false;
-                }
-              }
-            }
-          }
-        } else {
-          return false;
-        }
+  !isValidContainer(container) ? invariant(false, 'Target container is not a DOM element.') : void 0;
+  // TODO: pass ReactDOM portal implementation as third argument
+  return createPortal$1(children, container, null, key);
+}
 
-        return true;
-      default:
-        return false;
+function ReactRoot(container, hydrate) {
+  var root = DOMRenderer.createContainer(container, hydrate);
+  this._reactRootContainer = root;
+}
+ReactRoot.prototype.render = function (children, callback) {
+  var root = this._reactRootContainer;
+  DOMRenderer.updateContainer(children, root, null, callback);
+};
+ReactRoot.prototype.unmount = function (callback) {
+  var root = this._reactRootContainer;
+  DOMRenderer.updateContainer(null, root, null, callback);
+};
+
+var ReactDOM = {
+  createPortal: createPortal,
+
+  findDOMNode: function (componentOrElement) {
+    {
+      var owner = ReactCurrentOwner.current;
+      if (owner !== null) {
+        var warnedAboutRefsInRender = owner.stateNode._warnedAboutRefsInRender;
+        warning(warnedAboutRefsInRender, '%s is accessing findDOMNode inside its render(). ' + 'render() should be a pure function of props and state. It should ' + 'never access something that requires stale data from the previous ' + 'render, such as refs. Move this logic to componentDidMount and ' + 'componentDidUpdate instead.', getComponentName(owner) || 'A component');
+        owner.stateNode._warnedAboutRefsInRender = true;
+      }
+    }
+    if (componentOrElement == null) {
+      return null;
+    }
+    if (componentOrElement.nodeType === ELEMENT_NODE) {
+      return componentOrElement;
     }
-  }
 
-  function isSymbol(propType, propValue) {
-    // Native Symbol.
-    if (propType === 'symbol') {
-      return true;
+    var inst = get(componentOrElement);
+    if (inst) {
+      return DOMRenderer.findHostInstance(inst);
     }
 
-    // 19.4.3.5 Symbol.prototype[@@toStringTag] === 'Symbol'
-    if (propValue['@@toStringTag'] === 'Symbol') {
-      return true;
+    if (typeof componentOrElement.render === 'function') {
+      invariant(false, 'Unable to find node on an unmounted component.');
+    } else {
+      invariant(false, 'Element appears to be neither ReactComponent nor DOMNode. Keys: %s', Object.keys(componentOrElement));
     }
+  },
+  hydrate: function (element, container, callback) {
+    // TODO: throw or warn if we couldn't hydrate?
+    return renderSubtreeIntoContainer(null, element, container, true, callback);
+  },
+  render: function (element, container, callback) {
+    return renderSubtreeIntoContainer(null, element, container, false, callback);
+  },
+  unstable_renderSubtreeIntoContainer: function (parentComponent, element, containerNode, callback) {
+    !(parentComponent != null && has(parentComponent)) ? invariant(false, 'parentComponent must be a valid React Component') : void 0;
+    return renderSubtreeIntoContainer(parentComponent, element, containerNode, false, callback);
+  },
+  unmountComponentAtNode: function (container) {
+    !isValidContainer(container) ? invariant(false, 'unmountComponentAtNode(...): Target container is not a DOM element.') : void 0;
 
-    // Fallback for non-spec compliant Symbols which are polyfilled.
-    if (typeof Symbol === 'function' && propValue instanceof Symbol) {
+    if (container._reactRootContainer) {
+      {
+        var rootEl = getReactRootElementInContainer(container);
+        var renderedByDifferentReact = rootEl && !getInstanceFromNode$1(rootEl);
+        warning(!renderedByDifferentReact, "unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by another copy of React.');
+      }
+
+      // Unmount should not be batched.
+      DOMRenderer.unbatchedUpdates(function () {
+        renderSubtreeIntoContainer(null, null, container, false, function () {
+          container._reactRootContainer = null;
+        });
+      });
+      // If you call unmountComponentAtNode twice in quick succession, you'll
+      // get `true` twice. That's probably fine?
       return true;
-    }
+    } else {
+      {
+        var _rootEl = getReactRootElementInContainer(container);
+        var hasNonRootReactChild = !!(_rootEl && getInstanceFromNode$1(_rootEl));
 
-    return false;
-  }
+        // Check if the container itself is a React root node.
+        var isContainerReactRoot = container.nodeType === 1 && isValidContainer(container.parentNode) && !!container.parentNode._reactRootContainer;
 
-  // Equivalent of `typeof` but with special handling for array and regexp.
-  function getPropType(propValue) {
-    var propType = typeof propValue;
-    if (Array.isArray(propValue)) {
-      return 'array';
-    }
-    if (propValue instanceof RegExp) {
-      // Old webkits (at least until Android 4.0) return 'function' rather than
-      // 'object' for typeof a RegExp. We'll normalize this here so that /bla/
-      // passes PropTypes.object.
-      return 'object';
-    }
-    if (isSymbol(propType, propValue)) {
-      return 'symbol';
+        warning(!hasNonRootReactChild, "unmountComponentAtNode(): The node you're attempting to unmount " + 'was rendered by React and is not a top-level container. %s', isContainerReactRoot ? 'You may have accidentally passed in a React root node instead ' + 'of its container.' : 'Instead, have the parent component update its state and ' + 'rerender in order to remove this component.');
+      }
+
+      return false;
     }
-    return propType;
+  },
+
+
+  // Temporary alias since we already shipped React 16 RC with it.
+  // TODO: remove in React 17.
+  unstable_createPortal: createPortal,
+
+  unstable_batchedUpdates: batchedUpdates,
+
+  unstable_deferredUpdates: DOMRenderer.deferredUpdates,
+
+  flushSync: DOMRenderer.flushSync,
+
+  __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
+    // For TapEventPlugin which is popular in open source
+    EventPluginHub: EventPluginHub,
+    // Used by test-utils
+    EventPluginRegistry: EventPluginRegistry,
+    EventPropagators: EventPropagators,
+    ReactControlledComponent: ReactControlledComponent,
+    ReactDOMComponentTree: ReactDOMComponentTree,
+    ReactDOMEventListener: ReactDOMEventListener
   }
+};
 
-  // This handles more types than `getPropType`. Only used for error messages.
-  // See `createPrimitiveTypeChecker`.
-  function getPreciseType(propValue) {
-    if (typeof propValue === 'undefined' || propValue === null) {
-      return '' + propValue;
-    }
-    var propType = getPropType(propValue);
-    if (propType === 'object') {
-      if (propValue instanceof Date) {
-        return 'date';
-      } else if (propValue instanceof RegExp) {
-        return 'regexp';
+if (enableCreateRoot) {
+  ReactDOM.createRoot = function createRoot(container, options) {
+    var hydrate = options != null && options.hydrate === true;
+    return new ReactRoot(container, hydrate);
+  };
+}
+
+var foundDevTools = DOMRenderer.injectIntoDevTools({
+  findFiberByHostInstance: getClosestInstanceFromNode,
+  bundleType: 1,
+  version: ReactVersion,
+  rendererPackageName: 'react-dom'
+});
+
+{
+  if (!foundDevTools && ExecutionEnvironment.canUseDOM && window.top === window.self) {
+    // If we're in Chrome or Firefox, provide a download link if not installed.
+    if (navigator.userAgent.indexOf('Chrome') > -1 && navigator.userAgent.indexOf('Edge') === -1 || navigator.userAgent.indexOf('Firefox') > -1) {
+      var protocol = window.location.protocol;
+      // Don't warn in exotic cases like chrome-extension://.
+      if (/^(https?|file):$/.test(protocol)) {
+        console.info('%cDownload the React DevTools ' + 'for a better development experience: ' + 'https://fb.me/react-devtools' + (protocol === 'file:' ? '\nYou might need to use a local HTTP server (instead of file://): ' + 'https://fb.me/react-devtools-faq' : ''), 'font-weight:bold');
       }
     }
-    return propType;
   }
+}
 
-  // Returns a string that is postfixed to a warning about an invalid type.
-  // For example, "undefined" or "of type array"
-  function getPostfixForTypeWarning(value) {
-    var type = getPreciseType(value);
-    switch (type) {
-      case 'array':
-      case 'object':
-        return 'an ' + type;
-      case 'boolean':
-      case 'date':
-      case 'regexp':
-        return 'a ' + type;
-      default:
-        return type;
-    }
-  }
 
-  // Returns class name of the object, if any.
-  function getClassName(propValue) {
-    if (!propValue.constructor || !propValue.constructor.name) {
-      return ANONYMOUS;
-    }
-    return propValue.constructor.name;
-  }
 
-  ReactPropTypes.checkPropTypes = checkPropTypes;
-  ReactPropTypes.PropTypes = ReactPropTypes;
+var ReactDOM$2 = Object.freeze({
+	default: ReactDOM
+});
+
+var ReactDOM$3 = ( ReactDOM$2 && ReactDOM ) || ReactDOM$2;
+
+// TODO: decide on the top-level export form.
+// This is hacky but makes it work with both Rollup and Jest.
+var reactDom = ReactDOM$3['default'] ? ReactDOM$3['default'] : ReactDOM$3;
+
+module.exports = reactDom;
+  })();
+}
+
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
+
+/***/ }),
+/* 49 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
+ */
+
+
+
+var hyphenate = __webpack_require__(50);
+
+var msPattern = /^ms-/;
+
+/**
+ * Hyphenates a camelcased CSS property name, for example:
+ *
+ *   > hyphenateStyleName('backgroundColor')
+ *   < "background-color"
+ *   > hyphenateStyleName('MozTransition')
+ *   < "-moz-transition"
+ *   > hyphenateStyleName('msTransition')
+ *   < "-ms-transition"
+ *
+ * As Modernizr suggests (http://modernizr.com/docs/#prefixed), an `ms` prefix
+ * is converted to `-ms-`.
+ *
+ * @param {string} string
+ * @return {string}
+ */
+function hyphenateStyleName(string) {
+  return hyphenate(string).replace(msPattern, '-ms-');
+}
+
+module.exports = hyphenateStyleName;
+
+/***/ }),
+/* 50 */
+/***/ (function(module, exports, __webpack_require__) {
 
-  return ReactPropTypes;
-};
+"use strict";
 
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
+
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
+ */
+
+var _uppercasePattern = /([A-Z])/g;
+
+/**
+ * Hyphenates a camelcased string, for example:
+ *
+ *   > hyphenate('backgroundColor')
+ *   < "background-color"
+ *
+ * For CSS style names, use `hyphenateStyleName` instead which works properly
+ * with all vendor prefixes, including `ms`.
+ *
+ * @param {string} string
+ * @return {string}
+ */
+function hyphenate(string) {
+  return string.replace(_uppercasePattern, '-$1').toLowerCase();
+}
+
+module.exports = hyphenate;
 
 /***/ }),
-/* 56 */
+/* 51 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -22336,63 +19450,76 @@ module.exports = function(isValidElement, throwOnDirectAccess) {
  *
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
  */
 
 
 
-var emptyFunction = __webpack_require__(3);
-var invariant = __webpack_require__(4);
-var ReactPropTypesSecret = __webpack_require__(18);
+var camelize = __webpack_require__(52);
 
-module.exports = function() {
-  function shim(props, propName, componentName, location, propFullName, secret) {
-    if (secret === ReactPropTypesSecret) {
-      // It is still safe when called from React.
-      return;
-    }
-    invariant(
-      false,
-      'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
-      'Use PropTypes.checkPropTypes() to call them. ' +
-      'Read more at http://fb.me/use-check-prop-types'
-    );
-  };
-  shim.isRequired = shim;
-  function getShim() {
-    return shim;
-  };
-  // Important!
-  // Keep this list in sync with production version in `./factoryWithTypeCheckers.js`.
-  var ReactPropTypes = {
-    array: shim,
-    bool: shim,
-    func: shim,
-    number: shim,
-    object: shim,
-    string: shim,
-    symbol: shim,
+var msPattern = /^-ms-/;
 
-    any: shim,
-    arrayOf: getShim,
-    element: shim,
-    instanceOf: getShim,
-    node: shim,
-    objectOf: getShim,
-    oneOf: getShim,
-    oneOfType: getShim,
-    shape: getShim,
-    exact: getShim
-  };
+/**
+ * Camelcases a hyphenated CSS property name, for example:
+ *
+ *   > camelizeStyleName('background-color')
+ *   < "backgroundColor"
+ *   > camelizeStyleName('-moz-transition')
+ *   < "MozTransition"
+ *   > camelizeStyleName('-ms-transition')
+ *   < "msTransition"
+ *
+ * As Andi Smith suggests
+ * (http://www.andismith.com/blog/2012/02/modernizr-prefixed/), an `-ms` prefix
+ * is converted to lowercase `ms`.
+ *
+ * @param {string} string
+ * @return {string}
+ */
+function camelizeStyleName(string) {
+  return camelize(string.replace(msPattern, 'ms-'));
+}
 
-  ReactPropTypes.checkPropTypes = emptyFunction;
-  ReactPropTypes.PropTypes = ReactPropTypes;
+module.exports = camelizeStyleName;
 
-  return ReactPropTypes;
-};
+/***/ }),
+/* 52 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
+ */
+
+var _hyphenPattern = /-(.)/g;
+
+/**
+ * Camelcases a hyphenated string, for example:
+ *
+ *   > camelize('background-color')
+ *   < "backgroundColor"
+ *
+ * @param {string} string
+ * @return {string}
+ */
+function camelize(string) {
+  return string.replace(_hyphenPattern, function (_, character) {
+    return character.toUpperCase();
+  });
+}
 
+module.exports = camelize;
 
 /***/ }),
-/* 57 */
+/* 53 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -22408,7 +19535,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(5);
+var _reactCheckboxTree = __webpack_require__(4);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -22532,10 +19659,10 @@ var BasicExample = function (_React$Component) {
 exports.default = BasicExample;
 
 /***/ }),
-/* 58 */
+/* 54 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseIsEqual = __webpack_require__(59);
+var baseIsEqual = __webpack_require__(55);
 
 /**
  * Performs a deep comparison between two values to determine if they are
@@ -22573,11 +19700,11 @@ module.exports = isEqual;
 
 
 /***/ }),
-/* 59 */
+/* 55 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseIsEqualDeep = __webpack_require__(60),
-    isObjectLike = __webpack_require__(16);
+var baseIsEqualDeep = __webpack_require__(56),
+    isObjectLike = __webpack_require__(15);
 
 /**
  * The base implementation of `_.isEqual` which supports partial comparisons
@@ -22607,15 +19734,15 @@ module.exports = baseIsEqual;
 
 
 /***/ }),
-/* 60 */
+/* 56 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var Stack = __webpack_require__(61),
+var Stack = __webpack_require__(57),
     equalArrays = __webpack_require__(35),
-    equalByTag = __webpack_require__(96),
-    equalObjects = __webpack_require__(100),
-    getTag = __webpack_require__(122),
-    isArray = __webpack_require__(22),
+    equalByTag = __webpack_require__(92),
+    equalObjects = __webpack_require__(96),
+    getTag = __webpack_require__(118),
+    isArray = __webpack_require__(20),
     isBuffer = __webpack_require__(36),
     isTypedArray = __webpack_require__(38);
 
@@ -22696,15 +19823,15 @@ module.exports = baseIsEqualDeep;
 
 
 /***/ }),
-/* 61 */
+/* 57 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var ListCache = __webpack_require__(11),
-    stackClear = __webpack_require__(67),
-    stackDelete = __webpack_require__(68),
-    stackGet = __webpack_require__(69),
-    stackHas = __webpack_require__(70),
-    stackSet = __webpack_require__(71);
+var ListCache = __webpack_require__(10),
+    stackClear = __webpack_require__(63),
+    stackDelete = __webpack_require__(64),
+    stackGet = __webpack_require__(65),
+    stackHas = __webpack_require__(66),
+    stackSet = __webpack_require__(67);
 
 /**
  * Creates a stack cache object to store key-value pairs.
@@ -22729,7 +19856,7 @@ module.exports = Stack;
 
 
 /***/ }),
-/* 62 */
+/* 58 */
 /***/ (function(module, exports) {
 
 /**
@@ -22748,10 +19875,10 @@ module.exports = listCacheClear;
 
 
 /***/ }),
-/* 63 */
+/* 59 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var assocIndexOf = __webpack_require__(12);
+var assocIndexOf = __webpack_require__(11);
 
 /** Used for built-in method references. */
 var arrayProto = Array.prototype;
@@ -22789,10 +19916,10 @@ module.exports = listCacheDelete;
 
 
 /***/ }),
-/* 64 */
+/* 60 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var assocIndexOf = __webpack_require__(12);
+var assocIndexOf = __webpack_require__(11);
 
 /**
  * Gets the list cache value for `key`.
@@ -22814,10 +19941,10 @@ module.exports = listCacheGet;
 
 
 /***/ }),
-/* 65 */
+/* 61 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var assocIndexOf = __webpack_require__(12);
+var assocIndexOf = __webpack_require__(11);
 
 /**
  * Checks if a list cache value for `key` exists.
@@ -22836,10 +19963,10 @@ module.exports = listCacheHas;
 
 
 /***/ }),
-/* 66 */
+/* 62 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var assocIndexOf = __webpack_require__(12);
+var assocIndexOf = __webpack_require__(11);
 
 /**
  * Sets the list cache `key` to `value`.
@@ -22868,10 +19995,10 @@ module.exports = listCacheSet;
 
 
 /***/ }),
-/* 67 */
+/* 63 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var ListCache = __webpack_require__(11);
+var ListCache = __webpack_require__(10);
 
 /**
  * Removes all key-value entries from the stack.
@@ -22889,7 +20016,7 @@ module.exports = stackClear;
 
 
 /***/ }),
-/* 68 */
+/* 64 */
 /***/ (function(module, exports) {
 
 /**
@@ -22913,7 +20040,7 @@ module.exports = stackDelete;
 
 
 /***/ }),
-/* 69 */
+/* 65 */
 /***/ (function(module, exports) {
 
 /**
@@ -22933,7 +20060,7 @@ module.exports = stackGet;
 
 
 /***/ }),
-/* 70 */
+/* 66 */
 /***/ (function(module, exports) {
 
 /**
@@ -22953,11 +20080,11 @@ module.exports = stackHas;
 
 
 /***/ }),
-/* 71 */
+/* 67 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var ListCache = __webpack_require__(11),
-    Map = __webpack_require__(20),
+var ListCache = __webpack_require__(10),
+    Map = __webpack_require__(18),
     MapCache = __webpack_require__(34);
 
 /** Used as the size to enable large array optimizations. */
@@ -22993,11 +20120,11 @@ module.exports = stackSet;
 
 
 /***/ }),
-/* 72 */
+/* 68 */
 /***/ (function(module, exports, __webpack_require__) {
 
 var isFunction = __webpack_require__(30),
-    isMasked = __webpack_require__(76),
+    isMasked = __webpack_require__(72),
     isObject = __webpack_require__(32),
     toSource = __webpack_require__(33);
 
@@ -23046,37 +20173,37 @@ module.exports = baseIsNative;
 
 
 /***/ }),
-/* 73 */
+/* 69 */
 /***/ (function(module, exports) {
 
-var g;
-
-// This works in non-strict mode
-g = (function() {
-	return this;
-})();
-
-try {
-	// This works if eval is allowed (see CSP)
-	g = g || Function("return this")() || (1,eval)("this");
-} catch(e) {
-	// This works if the window reference is available
-	if(typeof window === "object")
-		g = window;
-}
-
-// g can still be undefined, but nothing to do about it...
-// We return undefined, instead of nothing here, so it's
-// easier to handle this case. if(!global) { ...}
-
-module.exports = g;
+var g;
+
+// This works in non-strict mode
+g = (function() {
+	return this;
+})();
+
+try {
+	// This works if eval is allowed (see CSP)
+	g = g || Function("return this")() || (1,eval)("this");
+} catch(e) {
+	// This works if the window reference is available
+	if(typeof window === "object")
+		g = window;
+}
+
+// g can still be undefined, but nothing to do about it...
+// We return undefined, instead of nothing here, so it's
+// easier to handle this case. if(!global) { ...}
+
+module.exports = g;
 
 
 /***/ }),
-/* 74 */
+/* 70 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var Symbol = __webpack_require__(21);
+var Symbol = __webpack_require__(19);
 
 /** Used for built-in method references. */
 var objectProto = Object.prototype;
@@ -23125,7 +20252,7 @@ module.exports = getRawTag;
 
 
 /***/ }),
-/* 75 */
+/* 71 */
 /***/ (function(module, exports) {
 
 /** Used for built-in method references. */
@@ -23153,10 +20280,10 @@ module.exports = objectToString;
 
 
 /***/ }),
-/* 76 */
+/* 72 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var coreJsData = __webpack_require__(77);
+var coreJsData = __webpack_require__(73);
 
 /** Used to detect methods masquerading as native. */
 var maskSrcKey = (function() {
@@ -23179,7 +20306,7 @@ module.exports = isMasked;
 
 
 /***/ }),
-/* 77 */
+/* 73 */
 /***/ (function(module, exports, __webpack_require__) {
 
 var root = __webpack_require__(2);
@@ -23191,7 +20318,7 @@ module.exports = coreJsData;
 
 
 /***/ }),
-/* 78 */
+/* 74 */
 /***/ (function(module, exports) {
 
 /**
@@ -23210,12 +20337,12 @@ module.exports = getValue;
 
 
 /***/ }),
-/* 79 */
+/* 75 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var Hash = __webpack_require__(80),
-    ListCache = __webpack_require__(11),
-    Map = __webpack_require__(20);
+var Hash = __webpack_require__(76),
+    ListCache = __webpack_require__(10),
+    Map = __webpack_require__(18);
 
 /**
  * Removes all key-value entries from the map.
@@ -23237,14 +20364,14 @@ module.exports = mapCacheClear;
 
 
 /***/ }),
-/* 80 */
+/* 76 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var hashClear = __webpack_require__(81),
-    hashDelete = __webpack_require__(82),
-    hashGet = __webpack_require__(83),
-    hashHas = __webpack_require__(84),
-    hashSet = __webpack_require__(85);
+var hashClear = __webpack_require__(77),
+    hashDelete = __webpack_require__(78),
+    hashGet = __webpack_require__(79),
+    hashHas = __webpack_require__(80),
+    hashSet = __webpack_require__(81);
 
 /**
  * Creates a hash object.
@@ -23275,10 +20402,10 @@ module.exports = Hash;
 
 
 /***/ }),
-/* 81 */
+/* 77 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var nativeCreate = __webpack_require__(14);
+var nativeCreate = __webpack_require__(13);
 
 /**
  * Removes all key-value entries from the hash.
@@ -23296,7 +20423,7 @@ module.exports = hashClear;
 
 
 /***/ }),
-/* 82 */
+/* 78 */
 /***/ (function(module, exports) {
 
 /**
@@ -23319,10 +20446,10 @@ module.exports = hashDelete;
 
 
 /***/ }),
-/* 83 */
+/* 79 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var nativeCreate = __webpack_require__(14);
+var nativeCreate = __webpack_require__(13);
 
 /** Used to stand-in for `undefined` hash values. */
 var HASH_UNDEFINED = '__lodash_hash_undefined__';
@@ -23355,10 +20482,10 @@ module.exports = hashGet;
 
 
 /***/ }),
-/* 84 */
+/* 80 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var nativeCreate = __webpack_require__(14);
+var nativeCreate = __webpack_require__(13);
 
 /** Used for built-in method references. */
 var objectProto = Object.prototype;
@@ -23384,10 +20511,10 @@ module.exports = hashHas;
 
 
 /***/ }),
-/* 85 */
+/* 81 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var nativeCreate = __webpack_require__(14);
+var nativeCreate = __webpack_require__(13);
 
 /** Used to stand-in for `undefined` hash values. */
 var HASH_UNDEFINED = '__lodash_hash_undefined__';
@@ -23413,10 +20540,10 @@ module.exports = hashSet;
 
 
 /***/ }),
-/* 86 */
+/* 82 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var getMapData = __webpack_require__(15);
+var getMapData = __webpack_require__(14);
 
 /**
  * Removes `key` and its value from the map.
@@ -23437,7 +20564,7 @@ module.exports = mapCacheDelete;
 
 
 /***/ }),
-/* 87 */
+/* 83 */
 /***/ (function(module, exports) {
 
 /**
@@ -23458,10 +20585,10 @@ module.exports = isKeyable;
 
 
 /***/ }),
-/* 88 */
+/* 84 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var getMapData = __webpack_require__(15);
+var getMapData = __webpack_require__(14);
 
 /**
  * Gets the map value for `key`.
@@ -23480,10 +20607,10 @@ module.exports = mapCacheGet;
 
 
 /***/ }),
-/* 89 */
+/* 85 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var getMapData = __webpack_require__(15);
+var getMapData = __webpack_require__(14);
 
 /**
  * Checks if a map value for `key` exists.
@@ -23502,10 +20629,10 @@ module.exports = mapCacheHas;
 
 
 /***/ }),
-/* 90 */
+/* 86 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var getMapData = __webpack_require__(15);
+var getMapData = __webpack_require__(14);
 
 /**
  * Sets the map `key` to `value`.
@@ -23530,12 +20657,12 @@ module.exports = mapCacheSet;
 
 
 /***/ }),
-/* 91 */
+/* 87 */
 /***/ (function(module, exports, __webpack_require__) {
 
 var MapCache = __webpack_require__(34),
-    setCacheAdd = __webpack_require__(92),
-    setCacheHas = __webpack_require__(93);
+    setCacheAdd = __webpack_require__(88),
+    setCacheHas = __webpack_require__(89);
 
 /**
  *
@@ -23563,7 +20690,7 @@ module.exports = SetCache;
 
 
 /***/ }),
-/* 92 */
+/* 88 */
 /***/ (function(module, exports) {
 
 /** Used to stand-in for `undefined` hash values. */
@@ -23588,7 +20715,7 @@ module.exports = setCacheAdd;
 
 
 /***/ }),
-/* 93 */
+/* 89 */
 /***/ (function(module, exports) {
 
 /**
@@ -23608,7 +20735,7 @@ module.exports = setCacheHas;
 
 
 /***/ }),
-/* 94 */
+/* 90 */
 /***/ (function(module, exports) {
 
 /**
@@ -23637,7 +20764,7 @@ module.exports = arraySome;
 
 
 /***/ }),
-/* 95 */
+/* 91 */
 /***/ (function(module, exports) {
 
 /**
@@ -23656,15 +20783,15 @@ module.exports = cacheHas;
 
 
 /***/ }),
-/* 96 */
+/* 92 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var Symbol = __webpack_require__(21),
-    Uint8Array = __webpack_require__(97),
+var Symbol = __webpack_require__(19),
+    Uint8Array = __webpack_require__(93),
     eq = __webpack_require__(29),
     equalArrays = __webpack_require__(35),
-    mapToArray = __webpack_require__(98),
-    setToArray = __webpack_require__(99);
+    mapToArray = __webpack_require__(94),
+    setToArray = __webpack_require__(95);
 
 /** Used to compose bitmasks for value comparisons. */
 var COMPARE_PARTIAL_FLAG = 1,
@@ -23774,7 +20901,7 @@ module.exports = equalByTag;
 
 
 /***/ }),
-/* 97 */
+/* 93 */
 /***/ (function(module, exports, __webpack_require__) {
 
 var root = __webpack_require__(2);
@@ -23786,7 +20913,7 @@ module.exports = Uint8Array;
 
 
 /***/ }),
-/* 98 */
+/* 94 */
 /***/ (function(module, exports) {
 
 /**
@@ -23810,7 +20937,7 @@ module.exports = mapToArray;
 
 
 /***/ }),
-/* 99 */
+/* 95 */
 /***/ (function(module, exports) {
 
 /**
@@ -23834,10 +20961,10 @@ module.exports = setToArray;
 
 
 /***/ }),
-/* 100 */
+/* 96 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var getAllKeys = __webpack_require__(101);
+var getAllKeys = __webpack_require__(97);
 
 /** Used to compose bitmasks for value comparisons. */
 var COMPARE_PARTIAL_FLAG = 1;
@@ -23929,12 +21056,12 @@ module.exports = equalObjects;
 
 
 /***/ }),
-/* 101 */
+/* 97 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseGetAllKeys = __webpack_require__(102),
-    getSymbols = __webpack_require__(104),
-    keys = __webpack_require__(107);
+var baseGetAllKeys = __webpack_require__(98),
+    getSymbols = __webpack_require__(100),
+    keys = __webpack_require__(103);
 
 /**
  * Creates an array of own enumerable property names and symbols of `object`.
@@ -23951,11 +21078,11 @@ module.exports = getAllKeys;
 
 
 /***/ }),
-/* 102 */
+/* 98 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var arrayPush = __webpack_require__(103),
-    isArray = __webpack_require__(22);
+var arrayPush = __webpack_require__(99),
+    isArray = __webpack_require__(20);
 
 /**
  * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
@@ -23977,7 +21104,7 @@ module.exports = baseGetAllKeys;
 
 
 /***/ }),
-/* 103 */
+/* 99 */
 /***/ (function(module, exports) {
 
 /**
@@ -24003,11 +21130,11 @@ module.exports = arrayPush;
 
 
 /***/ }),
-/* 104 */
+/* 100 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var arrayFilter = __webpack_require__(105),
-    stubArray = __webpack_require__(106);
+var arrayFilter = __webpack_require__(101),
+    stubArray = __webpack_require__(102);
 
 /** Used for built-in method references. */
 var objectProto = Object.prototype;
@@ -24039,7 +21166,7 @@ module.exports = getSymbols;
 
 
 /***/ }),
-/* 105 */
+/* 101 */
 /***/ (function(module, exports) {
 
 /**
@@ -24070,7 +21197,7 @@ module.exports = arrayFilter;
 
 
 /***/ }),
-/* 106 */
+/* 102 */
 /***/ (function(module, exports) {
 
 /**
@@ -24099,12 +21226,12 @@ module.exports = stubArray;
 
 
 /***/ }),
-/* 107 */
+/* 103 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var arrayLikeKeys = __webpack_require__(108),
-    baseKeys = __webpack_require__(117),
-    isArrayLike = __webpack_require__(121);
+var arrayLikeKeys = __webpack_require__(104),
+    baseKeys = __webpack_require__(113),
+    isArrayLike = __webpack_require__(117);
 
 /**
  * Creates an array of the own enumerable property names of `object`.
@@ -24142,14 +21269,14 @@ module.exports = keys;
 
 
 /***/ }),
-/* 108 */
+/* 104 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseTimes = __webpack_require__(109),
-    isArguments = __webpack_require__(110),
-    isArray = __webpack_require__(22),
+var baseTimes = __webpack_require__(105),
+    isArguments = __webpack_require__(106),
+    isArray = __webpack_require__(20),
     isBuffer = __webpack_require__(36),
-    isIndex = __webpack_require__(113),
+    isIndex = __webpack_require__(109),
     isTypedArray = __webpack_require__(38);
 
 /** Used for built-in method references. */
@@ -24197,7 +21324,7 @@ module.exports = arrayLikeKeys;
 
 
 /***/ }),
-/* 109 */
+/* 105 */
 /***/ (function(module, exports) {
 
 /**
@@ -24223,11 +21350,11 @@ module.exports = baseTimes;
 
 
 /***/ }),
-/* 110 */
+/* 106 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseIsArguments = __webpack_require__(111),
-    isObjectLike = __webpack_require__(16);
+var baseIsArguments = __webpack_require__(107),
+    isObjectLike = __webpack_require__(15);
 
 /** Used for built-in method references. */
 var objectProto = Object.prototype;
@@ -24265,11 +21392,11 @@ module.exports = isArguments;
 
 
 /***/ }),
-/* 111 */
+/* 107 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseGetTag = __webpack_require__(13),
-    isObjectLike = __webpack_require__(16);
+var baseGetTag = __webpack_require__(12),
+    isObjectLike = __webpack_require__(15);
 
 /** `Object#toString` result references. */
 var argsTag = '[object Arguments]';
@@ -24289,7 +21416,7 @@ module.exports = baseIsArguments;
 
 
 /***/ }),
-/* 112 */
+/* 108 */
 /***/ (function(module, exports) {
 
 /**
@@ -24313,7 +21440,7 @@ module.exports = stubFalse;
 
 
 /***/ }),
-/* 113 */
+/* 109 */
 /***/ (function(module, exports) {
 
 /** Used as references for various `Number` constants. */
@@ -24337,377 +21464,992 @@ function isIndex(value, length) {
     (value > -1 && value % 1 == 0 && value < length);
 }
 
-module.exports = isIndex;
+module.exports = isIndex;
+
+
+/***/ }),
+/* 110 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var baseGetTag = __webpack_require__(12),
+    isLength = __webpack_require__(39),
+    isObjectLike = __webpack_require__(15);
+
+/** `Object#toString` result references. */
+var argsTag = '[object Arguments]',
+    arrayTag = '[object Array]',
+    boolTag = '[object Boolean]',
+    dateTag = '[object Date]',
+    errorTag = '[object Error]',
+    funcTag = '[object Function]',
+    mapTag = '[object Map]',
+    numberTag = '[object Number]',
+    objectTag = '[object Object]',
+    regexpTag = '[object RegExp]',
+    setTag = '[object Set]',
+    stringTag = '[object String]',
+    weakMapTag = '[object WeakMap]';
+
+var arrayBufferTag = '[object ArrayBuffer]',
+    dataViewTag = '[object DataView]',
+    float32Tag = '[object Float32Array]',
+    float64Tag = '[object Float64Array]',
+    int8Tag = '[object Int8Array]',
+    int16Tag = '[object Int16Array]',
+    int32Tag = '[object Int32Array]',
+    uint8Tag = '[object Uint8Array]',
+    uint8ClampedTag = '[object Uint8ClampedArray]',
+    uint16Tag = '[object Uint16Array]',
+    uint32Tag = '[object Uint32Array]';
+
+/** Used to identify `toStringTag` values of typed arrays. */
+var typedArrayTags = {};
+typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
+typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
+typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
+typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
+typedArrayTags[uint32Tag] = true;
+typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
+typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
+typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
+typedArrayTags[errorTag] = typedArrayTags[funcTag] =
+typedArrayTags[mapTag] = typedArrayTags[numberTag] =
+typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
+typedArrayTags[setTag] = typedArrayTags[stringTag] =
+typedArrayTags[weakMapTag] = false;
+
+/**
+ * The base implementation of `_.isTypedArray` without Node.js optimizations.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+ */
+function baseIsTypedArray(value) {
+  return isObjectLike(value) &&
+    isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
+}
+
+module.exports = baseIsTypedArray;
+
+
+/***/ }),
+/* 111 */
+/***/ (function(module, exports) {
+
+/**
+ * The base implementation of `_.unary` without support for storing metadata.
+ *
+ * @private
+ * @param {Function} func The function to cap arguments for.
+ * @returns {Function} Returns the new capped function.
+ */
+function baseUnary(func) {
+  return function(value) {
+    return func(value);
+  };
+}
+
+module.exports = baseUnary;
+
+
+/***/ }),
+/* 112 */
+/***/ (function(module, exports, __webpack_require__) {
+
+/* WEBPACK VAR INJECTION */(function(module) {var freeGlobal = __webpack_require__(31);
+
+/** Detect free variable `exports`. */
+var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
+
+/** Detect free variable `module`. */
+var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
+
+/** Detect the popular CommonJS extension `module.exports`. */
+var moduleExports = freeModule && freeModule.exports === freeExports;
+
+/** Detect free variable `process` from Node.js. */
+var freeProcess = moduleExports && freeGlobal.process;
+
+/** Used to access faster Node.js helpers. */
+var nodeUtil = (function() {
+  try {
+    return freeProcess && freeProcess.binding && freeProcess.binding('util');
+  } catch (e) {}
+}());
+
+module.exports = nodeUtil;
+
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(37)(module)))
+
+/***/ }),
+/* 113 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var isPrototype = __webpack_require__(114),
+    nativeKeys = __webpack_require__(115);
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of property names.
+ */
+function baseKeys(object) {
+  if (!isPrototype(object)) {
+    return nativeKeys(object);
+  }
+  var result = [];
+  for (var key in Object(object)) {
+    if (hasOwnProperty.call(object, key) && key != 'constructor') {
+      result.push(key);
+    }
+  }
+  return result;
+}
+
+module.exports = baseKeys;
+
+
+/***/ }),
+/* 114 */
+/***/ (function(module, exports) {
+
+/** Used for built-in method references. */
+var objectProto = Object.prototype;
+
+/**
+ * Checks if `value` is likely a prototype object.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
+ */
+function isPrototype(value) {
+  var Ctor = value && value.constructor,
+      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
+
+  return value === proto;
+}
+
+module.exports = isPrototype;
+
+
+/***/ }),
+/* 115 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var overArg = __webpack_require__(116);
+
+/* Built-in method references for those with the same name as other `lodash` methods. */
+var nativeKeys = overArg(Object.keys, Object);
+
+module.exports = nativeKeys;
+
+
+/***/ }),
+/* 116 */
+/***/ (function(module, exports) {
+
+/**
+ * Creates a unary function that invokes `func` with its argument transformed.
+ *
+ * @private
+ * @param {Function} func The function to wrap.
+ * @param {Function} transform The argument transform.
+ * @returns {Function} Returns the new function.
+ */
+function overArg(func, transform) {
+  return function(arg) {
+    return func(transform(arg));
+  };
+}
+
+module.exports = overArg;
+
+
+/***/ }),
+/* 117 */
+/***/ (function(module, exports, __webpack_require__) {
+
+var isFunction = __webpack_require__(30),
+    isLength = __webpack_require__(39);
+
+/**
+ * Checks if `value` is array-like. A value is considered array-like if it's
+ * not a function and has a `value.length` that's an integer greater than or
+ * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
+ *
+ * @static
+ * @memberOf _
+ * @since 4.0.0
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
+ * @example
+ *
+ * _.isArrayLike([1, 2, 3]);
+ * // => true
+ *
+ * _.isArrayLike(document.body.children);
+ * // => true
+ *
+ * _.isArrayLike('abc');
+ * // => true
+ *
+ * _.isArrayLike(_.noop);
+ * // => false
+ */
+function isArrayLike(value) {
+  return value != null && isLength(value.length) && !isFunction(value);
+}
+
+module.exports = isArrayLike;
 
 
 /***/ }),
-/* 114 */
+/* 118 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var baseGetTag = __webpack_require__(13),
-    isLength = __webpack_require__(39),
-    isObjectLike = __webpack_require__(16);
+var DataView = __webpack_require__(119),
+    Map = __webpack_require__(18),
+    Promise = __webpack_require__(120),
+    Set = __webpack_require__(121),
+    WeakMap = __webpack_require__(122),
+    baseGetTag = __webpack_require__(12),
+    toSource = __webpack_require__(33);
 
 /** `Object#toString` result references. */
-var argsTag = '[object Arguments]',
-    arrayTag = '[object Array]',
-    boolTag = '[object Boolean]',
-    dateTag = '[object Date]',
-    errorTag = '[object Error]',
-    funcTag = '[object Function]',
-    mapTag = '[object Map]',
-    numberTag = '[object Number]',
+var mapTag = '[object Map]',
     objectTag = '[object Object]',
-    regexpTag = '[object RegExp]',
+    promiseTag = '[object Promise]',
     setTag = '[object Set]',
-    stringTag = '[object String]',
     weakMapTag = '[object WeakMap]';
 
-var arrayBufferTag = '[object ArrayBuffer]',
-    dataViewTag = '[object DataView]',
-    float32Tag = '[object Float32Array]',
-    float64Tag = '[object Float64Array]',
-    int8Tag = '[object Int8Array]',
-    int16Tag = '[object Int16Array]',
-    int32Tag = '[object Int32Array]',
-    uint8Tag = '[object Uint8Array]',
-    uint8ClampedTag = '[object Uint8ClampedArray]',
-    uint16Tag = '[object Uint16Array]',
-    uint32Tag = '[object Uint32Array]';
+var dataViewTag = '[object DataView]';
 
-/** Used to identify `toStringTag` values of typed arrays. */
-var typedArrayTags = {};
-typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
-typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
-typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
-typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
-typedArrayTags[uint32Tag] = true;
-typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
-typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
-typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
-typedArrayTags[errorTag] = typedArrayTags[funcTag] =
-typedArrayTags[mapTag] = typedArrayTags[numberTag] =
-typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
-typedArrayTags[setTag] = typedArrayTags[stringTag] =
-typedArrayTags[weakMapTag] = false;
+/** Used to detect maps, sets, and weakmaps. */
+var dataViewCtorString = toSource(DataView),
+    mapCtorString = toSource(Map),
+    promiseCtorString = toSource(Promise),
+    setCtorString = toSource(Set),
+    weakMapCtorString = toSource(WeakMap);
 
 /**
- * The base implementation of `_.isTypedArray` without Node.js optimizations.
+ * Gets the `toStringTag` of `value`.
  *
  * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
+ * @param {*} value The value to query.
+ * @returns {string} Returns the `toStringTag`.
  */
-function baseIsTypedArray(value) {
-  return isObjectLike(value) &&
-    isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
+var getTag = baseGetTag;
+
+// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
+if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
+    (Map && getTag(new Map) != mapTag) ||
+    (Promise && getTag(Promise.resolve()) != promiseTag) ||
+    (Set && getTag(new Set) != setTag) ||
+    (WeakMap && getTag(new WeakMap) != weakMapTag)) {
+  getTag = function(value) {
+    var result = baseGetTag(value),
+        Ctor = result == objectTag ? value.constructor : undefined,
+        ctorString = Ctor ? toSource(Ctor) : '';
+
+    if (ctorString) {
+      switch (ctorString) {
+        case dataViewCtorString: return dataViewTag;
+        case mapCtorString: return mapTag;
+        case promiseCtorString: return promiseTag;
+        case setCtorString: return setTag;
+        case weakMapCtorString: return weakMapTag;
+      }
+    }
+    return result;
+  };
 }
 
-module.exports = baseIsTypedArray;
+module.exports = getTag;
 
 
 /***/ }),
-/* 115 */
-/***/ (function(module, exports) {
+/* 119 */
+/***/ (function(module, exports, __webpack_require__) {
 
-/**
- * The base implementation of `_.unary` without support for storing metadata.
- *
- * @private
- * @param {Function} func The function to cap arguments for.
- * @returns {Function} Returns the new capped function.
- */
-function baseUnary(func) {
-  return function(value) {
-    return func(value);
-  };
-}
+var getNative = __webpack_require__(5),
+    root = __webpack_require__(2);
 
-module.exports = baseUnary;
+/* Built-in method references that are verified to be native. */
+var DataView = getNative(root, 'DataView');
+
+module.exports = DataView;
 
 
 /***/ }),
-/* 116 */
+/* 120 */
 /***/ (function(module, exports, __webpack_require__) {
 
-/* WEBPACK VAR INJECTION */(function(module) {var freeGlobal = __webpack_require__(31);
+var getNative = __webpack_require__(5),
+    root = __webpack_require__(2);
 
-/** Detect free variable `exports`. */
-var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
+/* Built-in method references that are verified to be native. */
+var Promise = getNative(root, 'Promise');
 
-/** Detect free variable `module`. */
-var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
+module.exports = Promise;
 
-/** Detect the popular CommonJS extension `module.exports`. */
-var moduleExports = freeModule && freeModule.exports === freeExports;
 
-/** Detect free variable `process` from Node.js. */
-var freeProcess = moduleExports && freeGlobal.process;
+/***/ }),
+/* 121 */
+/***/ (function(module, exports, __webpack_require__) {
 
-/** Used to access faster Node.js helpers. */
-var nodeUtil = (function() {
-  try {
-    return freeProcess && freeProcess.binding && freeProcess.binding('util');
-  } catch (e) {}
-}());
+var getNative = __webpack_require__(5),
+    root = __webpack_require__(2);
 
-module.exports = nodeUtil;
+/* Built-in method references that are verified to be native. */
+var Set = getNative(root, 'Set');
+
+module.exports = Set;
 
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(37)(module)))
 
 /***/ }),
-/* 117 */
+/* 122 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var isPrototype = __webpack_require__(118),
-    nativeKeys = __webpack_require__(119);
+var getNative = __webpack_require__(5),
+    root = __webpack_require__(2);
 
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
+/* Built-in method references that are verified to be native. */
+var WeakMap = getNative(root, 'WeakMap');
 
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
+module.exports = WeakMap;
 
-/**
- * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
+
+/***/ }),
+/* 123 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+/* WEBPACK VAR INJECTION */(function(process) {/**
+ * Copyright (c) 2013-present, Facebook, Inc.
  *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
  */
-function baseKeys(object) {
-  if (!isPrototype(object)) {
-    return nativeKeys(object);
-  }
-  var result = [];
-  for (var key in Object(object)) {
-    if (hasOwnProperty.call(object, key) && key != 'constructor') {
-      result.push(key);
-    }
-  }
-  return result;
-}
 
-module.exports = baseKeys;
 
 
-/***/ }),
-/* 118 */
-/***/ (function(module, exports) {
+var emptyFunction = __webpack_require__(3);
+var invariant = __webpack_require__(7);
+var warning = __webpack_require__(9);
+var assign = __webpack_require__(6);
 
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
+var ReactPropTypesSecret = __webpack_require__(17);
+var checkPropTypes = __webpack_require__(16);
+
+module.exports = function(isValidElement, throwOnDirectAccess) {
+  /* global Symbol */
+  var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
+  var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.
+
+  /**
+   * Returns the iterator method function contained on the iterable object.
+   *
+   * Be sure to invoke the function with the iterable as context:
+   *
+   *     var iteratorFn = getIteratorFn(myIterable);
+   *     if (iteratorFn) {
+   *       var iterator = iteratorFn.call(myIterable);
+   *       ...
+   *     }
+   *
+   * @param {?object} maybeIterable
+   * @return {?function}
+   */
+  function getIteratorFn(maybeIterable) {
+    var iteratorFn = maybeIterable && (ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL] || maybeIterable[FAUX_ITERATOR_SYMBOL]);
+    if (typeof iteratorFn === 'function') {
+      return iteratorFn;
+    }
+  }
+
+  /**
+   * Collection of methods that allow declaration and validation of props that are
+   * supplied to React components. Example usage:
+   *
+   *   var Props = require('ReactPropTypes');
+   *   var MyArticle = React.createClass({
+   *     propTypes: {
+   *       // An optional string prop named "description".
+   *       description: Props.string,
+   *
+   *       // A required enum prop named "category".
+   *       category: Props.oneOf(['News','Photos']).isRequired,
+   *
+   *       // A prop named "dialog" that requires an instance of Dialog.
+   *       dialog: Props.instanceOf(Dialog).isRequired
+   *     },
+   *     render: function() { ... }
+   *   });
+   *
+   * A more formal specification of how these methods are used:
+   *
+   *   type := array|bool|func|object|number|string|oneOf([...])|instanceOf(...)
+   *   decl := ReactPropTypes.{type}(.isRequired)?
+   *
+   * Each and every declaration produces a function with the same signature. This
+   * allows the creation of custom validation functions. For example:
+   *
+   *  var MyLink = React.createClass({
+   *    propTypes: {
+   *      // An optional string or URI prop named "href".
+   *      href: function(props, propName, componentName) {
+   *        var propValue = props[propName];
+   *        if (propValue != null && typeof propValue !== 'string' &&
+   *            !(propValue instanceof URI)) {
+   *          return new Error(
+   *            'Expected a string or an URI for ' + propName + ' in ' +
+   *            componentName
+   *          );
+   *        }
+   *      }
+   *    },
+   *    render: function() {...}
+   *  });
+   *
+   * @internal
+   */
 
-/**
- * Checks if `value` is likely a prototype object.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
- */
-function isPrototype(value) {
-  var Ctor = value && value.constructor,
-      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
+  var ANONYMOUS = '<<anonymous>>';
 
-  return value === proto;
-}
+  // Important!
+  // Keep this list in sync with production version in `./factoryWithThrowingShims.js`.
+  var ReactPropTypes = {
+    array: createPrimitiveTypeChecker('array'),
+    bool: createPrimitiveTypeChecker('boolean'),
+    func: createPrimitiveTypeChecker('function'),
+    number: createPrimitiveTypeChecker('number'),
+    object: createPrimitiveTypeChecker('object'),
+    string: createPrimitiveTypeChecker('string'),
+    symbol: createPrimitiveTypeChecker('symbol'),
 
-module.exports = isPrototype;
+    any: createAnyTypeChecker(),
+    arrayOf: createArrayOfTypeChecker,
+    element: createElementTypeChecker(),
+    instanceOf: createInstanceTypeChecker,
+    node: createNodeChecker(),
+    objectOf: createObjectOfTypeChecker,
+    oneOf: createEnumTypeChecker,
+    oneOfType: createUnionTypeChecker,
+    shape: createShapeTypeChecker,
+    exact: createStrictShapeTypeChecker,
+  };
 
+  /**
+   * inlined Object.is polyfill to avoid requiring consumers ship their own
+   * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is
+   */
+  /*eslint-disable no-self-compare*/
+  function is(x, y) {
+    // SameValue algorithm
+    if (x === y) {
+      // Steps 1-5, 7-10
+      // Steps 6.b-6.e: +0 != -0
+      return x !== 0 || 1 / x === 1 / y;
+    } else {
+      // Step 6.a: NaN == NaN
+      return x !== x && y !== y;
+    }
+  }
+  /*eslint-enable no-self-compare*/
 
-/***/ }),
-/* 119 */
-/***/ (function(module, exports, __webpack_require__) {
+  /**
+   * We use an Error-like object for backward compatibility as people may call
+   * PropTypes directly and inspect their output. However, we don't use real
+   * Errors anymore. We don't inspect their stack anyway, and creating them
+   * is prohibitively expensive if they are created too often, such as what
+   * happens in oneOfType() for any type before the one that matched.
+   */
+  function PropTypeError(message) {
+    this.message = message;
+    this.stack = '';
+  }
+  // Make `instanceof Error` still work for returned errors.
+  PropTypeError.prototype = Error.prototype;
 
-var overArg = __webpack_require__(120);
+  function createChainableTypeChecker(validate) {
+    if (process.env.NODE_ENV !== 'production') {
+      var manualPropTypeCallCache = {};
+      var manualPropTypeWarningCount = 0;
+    }
+    function checkType(isRequired, props, propName, componentName, location, propFullName, secret) {
+      componentName = componentName || ANONYMOUS;
+      propFullName = propFullName || propName;
 
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeKeys = overArg(Object.keys, Object);
+      if (secret !== ReactPropTypesSecret) {
+        if (throwOnDirectAccess) {
+          // New behavior only for users of `prop-types` package
+          invariant(
+            false,
+            'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
+            'Use `PropTypes.checkPropTypes()` to call them. ' +
+            'Read more at http://fb.me/use-check-prop-types'
+          );
+        } else if (process.env.NODE_ENV !== 'production' && typeof console !== 'undefined') {
+          // Old behavior for people using React.PropTypes
+          var cacheKey = componentName + ':' + propName;
+          if (
+            !manualPropTypeCallCache[cacheKey] &&
+            // Avoid spamming the console because they are often not actionable except for lib authors
+            manualPropTypeWarningCount < 3
+          ) {
+            warning(
+              false,
+              'You are manually calling a React.PropTypes validation ' +
+              'function for the `%s` prop on `%s`. This is deprecated ' +
+              'and will throw in the standalone `prop-types` package. ' +
+              'You may be seeing this warning due to a third-party PropTypes ' +
+              'library. See https://fb.me/react-warning-dont-call-proptypes ' + 'for details.',
+              propFullName,
+              componentName
+            );
+            manualPropTypeCallCache[cacheKey] = true;
+            manualPropTypeWarningCount++;
+          }
+        }
+      }
+      if (props[propName] == null) {
+        if (isRequired) {
+          if (props[propName] === null) {
+            return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required ' + ('in `' + componentName + '`, but its value is `null`.'));
+          }
+          return new PropTypeError('The ' + location + ' `' + propFullName + '` is marked as required in ' + ('`' + componentName + '`, but its value is `undefined`.'));
+        }
+        return null;
+      } else {
+        return validate(props, propName, componentName, location, propFullName);
+      }
+    }
 
-module.exports = nativeKeys;
+    var chainedCheckType = checkType.bind(null, false);
+    chainedCheckType.isRequired = checkType.bind(null, true);
 
+    return chainedCheckType;
+  }
 
-/***/ }),
-/* 120 */
-/***/ (function(module, exports) {
+  function createPrimitiveTypeChecker(expectedType) {
+    function validate(props, propName, componentName, location, propFullName, secret) {
+      var propValue = props[propName];
+      var propType = getPropType(propValue);
+      if (propType !== expectedType) {
+        // `propValue` being instance of, say, date/regexp, pass the 'object'
+        // check, but we can offer a more precise error message here rather than
+        // 'of type `object`'.
+        var preciseType = getPreciseType(propValue);
 
-/**
- * Creates a unary function that invokes `func` with its argument transformed.
- *
- * @private
- * @param {Function} func The function to wrap.
- * @param {Function} transform The argument transform.
- * @returns {Function} Returns the new function.
- */
-function overArg(func, transform) {
-  return function(arg) {
-    return func(transform(arg));
-  };
-}
+        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + preciseType + '` supplied to `' + componentName + '`, expected ') + ('`' + expectedType + '`.'));
+      }
+      return null;
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-module.exports = overArg;
+  function createAnyTypeChecker() {
+    return createChainableTypeChecker(emptyFunction.thatReturnsNull);
+  }
 
+  function createArrayOfTypeChecker(typeChecker) {
+    function validate(props, propName, componentName, location, propFullName) {
+      if (typeof typeChecker !== 'function') {
+        return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside arrayOf.');
+      }
+      var propValue = props[propName];
+      if (!Array.isArray(propValue)) {
+        var propType = getPropType(propValue);
+        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an array.'));
+      }
+      for (var i = 0; i < propValue.length; i++) {
+        var error = typeChecker(propValue, i, componentName, location, propFullName + '[' + i + ']', ReactPropTypesSecret);
+        if (error instanceof Error) {
+          return error;
+        }
+      }
+      return null;
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-/***/ }),
-/* 121 */
-/***/ (function(module, exports, __webpack_require__) {
+  function createElementTypeChecker() {
+    function validate(props, propName, componentName, location, propFullName) {
+      var propValue = props[propName];
+      if (!isValidElement(propValue)) {
+        var propType = getPropType(propValue);
+        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected a single ReactElement.'));
+      }
+      return null;
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-var isFunction = __webpack_require__(30),
-    isLength = __webpack_require__(39);
+  function createInstanceTypeChecker(expectedClass) {
+    function validate(props, propName, componentName, location, propFullName) {
+      if (!(props[propName] instanceof expectedClass)) {
+        var expectedClassName = expectedClass.name || ANONYMOUS;
+        var actualClassName = getClassName(props[propName]);
+        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + actualClassName + '` supplied to `' + componentName + '`, expected ') + ('instance of `' + expectedClassName + '`.'));
+      }
+      return null;
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-/**
- * Checks if `value` is array-like. A value is considered array-like if it's
- * not a function and has a `value.length` that's an integer greater than or
- * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- * @example
- *
- * _.isArrayLike([1, 2, 3]);
- * // => true
- *
- * _.isArrayLike(document.body.children);
- * // => true
- *
- * _.isArrayLike('abc');
- * // => true
- *
- * _.isArrayLike(_.noop);
- * // => false
- */
-function isArrayLike(value) {
-  return value != null && isLength(value.length) && !isFunction(value);
-}
+  function createEnumTypeChecker(expectedValues) {
+    if (!Array.isArray(expectedValues)) {
+      process.env.NODE_ENV !== 'production' ? warning(false, 'Invalid argument supplied to oneOf, expected an instance of array.') : void 0;
+      return emptyFunction.thatReturnsNull;
+    }
 
-module.exports = isArrayLike;
+    function validate(props, propName, componentName, location, propFullName) {
+      var propValue = props[propName];
+      for (var i = 0; i < expectedValues.length; i++) {
+        if (is(propValue, expectedValues[i])) {
+          return null;
+        }
+      }
 
+      var valuesString = JSON.stringify(expectedValues);
+      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of value `' + propValue + '` ' + ('supplied to `' + componentName + '`, expected one of ' + valuesString + '.'));
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-/***/ }),
-/* 122 */
-/***/ (function(module, exports, __webpack_require__) {
+  function createObjectOfTypeChecker(typeChecker) {
+    function validate(props, propName, componentName, location, propFullName) {
+      if (typeof typeChecker !== 'function') {
+        return new PropTypeError('Property `' + propFullName + '` of component `' + componentName + '` has invalid PropType notation inside objectOf.');
+      }
+      var propValue = props[propName];
+      var propType = getPropType(propValue);
+      if (propType !== 'object') {
+        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type ' + ('`' + propType + '` supplied to `' + componentName + '`, expected an object.'));
+      }
+      for (var key in propValue) {
+        if (propValue.hasOwnProperty(key)) {
+          var error = typeChecker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
+          if (error instanceof Error) {
+            return error;
+          }
+        }
+      }
+      return null;
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-var DataView = __webpack_require__(123),
-    Map = __webpack_require__(20),
-    Promise = __webpack_require__(124),
-    Set = __webpack_require__(125),
-    WeakMap = __webpack_require__(126),
-    baseGetTag = __webpack_require__(13),
-    toSource = __webpack_require__(33);
+  function createUnionTypeChecker(arrayOfTypeCheckers) {
+    if (!Array.isArray(arrayOfTypeCheckers)) {
+      process.env.NODE_ENV !== 'production' ? warning(false, 'Invalid argument supplied to oneOfType, expected an instance of array.') : void 0;
+      return emptyFunction.thatReturnsNull;
+    }
 
-/** `Object#toString` result references. */
-var mapTag = '[object Map]',
-    objectTag = '[object Object]',
-    promiseTag = '[object Promise]',
-    setTag = '[object Set]',
-    weakMapTag = '[object WeakMap]';
+    for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
+      var checker = arrayOfTypeCheckers[i];
+      if (typeof checker !== 'function') {
+        warning(
+          false,
+          'Invalid argument supplied to oneOfType. Expected an array of check functions, but ' +
+          'received %s at index %s.',
+          getPostfixForTypeWarning(checker),
+          i
+        );
+        return emptyFunction.thatReturnsNull;
+      }
+    }
 
-var dataViewTag = '[object DataView]';
+    function validate(props, propName, componentName, location, propFullName) {
+      for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
+        var checker = arrayOfTypeCheckers[i];
+        if (checker(props, propName, componentName, location, propFullName, ReactPropTypesSecret) == null) {
+          return null;
+        }
+      }
 
-/** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = toSource(DataView),
-    mapCtorString = toSource(Map),
-    promiseCtorString = toSource(Promise),
-    setCtorString = toSource(Set),
-    weakMapCtorString = toSource(WeakMap);
+      return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`.'));
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-/**
- * Gets the `toStringTag` of `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-var getTag = baseGetTag;
+  function createNodeChecker() {
+    function validate(props, propName, componentName, location, propFullName) {
+      if (!isNode(props[propName])) {
+        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` supplied to ' + ('`' + componentName + '`, expected a ReactNode.'));
+      }
+      return null;
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
-if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
-    (Map && getTag(new Map) != mapTag) ||
-    (Promise && getTag(Promise.resolve()) != promiseTag) ||
-    (Set && getTag(new Set) != setTag) ||
-    (WeakMap && getTag(new WeakMap) != weakMapTag)) {
-  getTag = function(value) {
-    var result = baseGetTag(value),
-        Ctor = result == objectTag ? value.constructor : undefined,
-        ctorString = Ctor ? toSource(Ctor) : '';
+  function createShapeTypeChecker(shapeTypes) {
+    function validate(props, propName, componentName, location, propFullName) {
+      var propValue = props[propName];
+      var propType = getPropType(propValue);
+      if (propType !== 'object') {
+        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
+      }
+      for (var key in shapeTypes) {
+        var checker = shapeTypes[key];
+        if (!checker) {
+          continue;
+        }
+        var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
+        if (error) {
+          return error;
+        }
+      }
+      return null;
+    }
+    return createChainableTypeChecker(validate);
+  }
 
-    if (ctorString) {
-      switch (ctorString) {
-        case dataViewCtorString: return dataViewTag;
-        case mapCtorString: return mapTag;
-        case promiseCtorString: return promiseTag;
-        case setCtorString: return setTag;
-        case weakMapCtorString: return weakMapTag;
+  function createStrictShapeTypeChecker(shapeTypes) {
+    function validate(props, propName, componentName, location, propFullName) {
+      var propValue = props[propName];
+      var propType = getPropType(propValue);
+      if (propType !== 'object') {
+        return new PropTypeError('Invalid ' + location + ' `' + propFullName + '` of type `' + propType + '` ' + ('supplied to `' + componentName + '`, expected `object`.'));
+      }
+      // We need to check all keys in case some are required but missing from
+      // props.
+      var allKeys = assign({}, props[propName], shapeTypes);
+      for (var key in allKeys) {
+        var checker = shapeTypes[key];
+        if (!checker) {
+          return new PropTypeError(
+            'Invalid ' + location + ' `' + propFullName + '` key `' + key + '` supplied to `' + componentName + '`.' +
+            '\nBad object: ' + JSON.stringify(props[propName], null, '  ') +
+            '\nValid keys: ' +  JSON.stringify(Object.keys(shapeTypes), null, '  ')
+          );
+        }
+        var error = checker(propValue, key, componentName, location, propFullName + '.' + key, ReactPropTypesSecret);
+        if (error) {
+          return error;
+        }
       }
+      return null;
     }
-    return result;
-  };
-}
 
-module.exports = getTag;
+    return createChainableTypeChecker(validate);
+  }
 
+  function isNode(propValue) {
+    switch (typeof propValue) {
+      case 'number':
+      case 'string':
+      case 'undefined':
+        return true;
+      case 'boolean':
+        return !propValue;
+      case 'object':
+        if (Array.isArray(propValue)) {
+          return propValue.every(isNode);
+        }
+        if (propValue === null || isValidElement(propValue)) {
+          return true;
+        }
 
-/***/ }),
-/* 123 */
-/***/ (function(module, exports, __webpack_require__) {
+        var iteratorFn = getIteratorFn(propValue);
+        if (iteratorFn) {
+          var iterator = iteratorFn.call(propValue);
+          var step;
+          if (iteratorFn !== propValue.entries) {
+            while (!(step = iterator.next()).done) {
+              if (!isNode(step.value)) {
+                return false;
+              }
+            }
+          } else {
+            // Iterator will provide entry [k,v] tuples rather than values.
+            while (!(step = iterator.next()).done) {
+              var entry = step.value;
+              if (entry) {
+                if (!isNode(entry[1])) {
+                  return false;
+                }
+              }
+            }
+          }
+        } else {
+          return false;
+        }
 
-var getNative = __webpack_require__(6),
-    root = __webpack_require__(2);
+        return true;
+      default:
+        return false;
+    }
+  }
 
-/* Built-in method references that are verified to be native. */
-var DataView = getNative(root, 'DataView');
+  function isSymbol(propType, propValue) {
+    // Native Symbol.
+    if (propType === 'symbol') {
+      return true;
+    }
 
-module.exports = DataView;
+    // 19.4.3.5 Symbol.prototype[@@toStringTag] === 'Symbol'
+    if (propValue['@@toStringTag'] === 'Symbol') {
+      return true;
+    }
+
+    // Fallback for non-spec compliant Symbols which are polyfilled.
+    if (typeof Symbol === 'function' && propValue instanceof Symbol) {
+      return true;
+    }
+
+    return false;
+  }
+
+  // Equivalent of `typeof` but with special handling for array and regexp.
+  function getPropType(propValue) {
+    var propType = typeof propValue;
+    if (Array.isArray(propValue)) {
+      return 'array';
+    }
+    if (propValue instanceof RegExp) {
+      // Old webkits (at least until Android 4.0) return 'function' rather than
+      // 'object' for typeof a RegExp. We'll normalize this here so that /bla/
+      // passes PropTypes.object.
+      return 'object';
+    }
+    if (isSymbol(propType, propValue)) {
+      return 'symbol';
+    }
+    return propType;
+  }
 
+  // This handles more types than `getPropType`. Only used for error messages.
+  // See `createPrimitiveTypeChecker`.
+  function getPreciseType(propValue) {
+    if (typeof propValue === 'undefined' || propValue === null) {
+      return '' + propValue;
+    }
+    var propType = getPropType(propValue);
+    if (propType === 'object') {
+      if (propValue instanceof Date) {
+        return 'date';
+      } else if (propValue instanceof RegExp) {
+        return 'regexp';
+      }
+    }
+    return propType;
+  }
 
-/***/ }),
-/* 124 */
-/***/ (function(module, exports, __webpack_require__) {
+  // Returns a string that is postfixed to a warning about an invalid type.
+  // For example, "undefined" or "of type array"
+  function getPostfixForTypeWarning(value) {
+    var type = getPreciseType(value);
+    switch (type) {
+      case 'array':
+      case 'object':
+        return 'an ' + type;
+      case 'boolean':
+      case 'date':
+      case 'regexp':
+        return 'a ' + type;
+      default:
+        return type;
+    }
+  }
 
-var getNative = __webpack_require__(6),
-    root = __webpack_require__(2);
+  // Returns class name of the object, if any.
+  function getClassName(propValue) {
+    if (!propValue.constructor || !propValue.constructor.name) {
+      return ANONYMOUS;
+    }
+    return propValue.constructor.name;
+  }
 
-/* Built-in method references that are verified to be native. */
-var Promise = getNative(root, 'Promise');
+  ReactPropTypes.checkPropTypes = checkPropTypes;
+  ReactPropTypes.PropTypes = ReactPropTypes;
 
-module.exports = Promise;
+  return ReactPropTypes;
+};
 
+/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 125 */
+/* 124 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var getNative = __webpack_require__(6),
-    root = __webpack_require__(2);
+"use strict";
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
 
-/* Built-in method references that are verified to be native. */
-var Set = getNative(root, 'Set');
 
-module.exports = Set;
 
+var emptyFunction = __webpack_require__(3);
+var invariant = __webpack_require__(7);
+var ReactPropTypesSecret = __webpack_require__(17);
 
-/***/ }),
-/* 126 */
-/***/ (function(module, exports, __webpack_require__) {
+module.exports = function() {
+  function shim(props, propName, componentName, location, propFullName, secret) {
+    if (secret === ReactPropTypesSecret) {
+      // It is still safe when called from React.
+      return;
+    }
+    invariant(
+      false,
+      'Calling PropTypes validators directly is not supported by the `prop-types` package. ' +
+      'Use PropTypes.checkPropTypes() to call them. ' +
+      'Read more at http://fb.me/use-check-prop-types'
+    );
+  };
+  shim.isRequired = shim;
+  function getShim() {
+    return shim;
+  };
+  // Important!
+  // Keep this list in sync with production version in `./factoryWithTypeCheckers.js`.
+  var ReactPropTypes = {
+    array: shim,
+    bool: shim,
+    func: shim,
+    number: shim,
+    object: shim,
+    string: shim,
+    symbol: shim,
 
-var getNative = __webpack_require__(6),
-    root = __webpack_require__(2);
+    any: shim,
+    arrayOf: getShim,
+    element: shim,
+    instanceOf: getShim,
+    node: shim,
+    objectOf: getShim,
+    oneOf: getShim,
+    oneOfType: getShim,
+    shape: getShim,
+    exact: getShim
+  };
 
-/* Built-in method references that are verified to be native. */
-var WeakMap = getNative(root, 'WeakMap');
+  ReactPropTypes.checkPropTypes = emptyFunction;
+  ReactPropTypes.PropTypes = ReactPropTypes;
 
-module.exports = WeakMap;
+  return ReactPropTypes;
+};
 
 
 /***/ }),
-/* 127 */
+/* 125 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var random = __webpack_require__(128)
+var random = __webpack_require__(126)
 
 var url = '_~0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
 
@@ -24739,7 +22481,7 @@ module.exports = function (size) {
 
 
 /***/ }),
-/* 128 */
+/* 126 */
 /***/ (function(module, exports) {
 
 var crypto = window.crypto || window.msCrypto
@@ -24750,7 +22492,7 @@ module.exports = function (bytes) {
 
 
 /***/ }),
-/* 129 */
+/* 127 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -24766,7 +22508,7 @@ var _classnames = __webpack_require__(28);
 
 var _classnames2 = _interopRequireDefault(_classnames);
 
-var _propTypes = __webpack_require__(10);
+var _propTypes = __webpack_require__(21);
 
 var _propTypes2 = _interopRequireDefault(_propTypes);
 
@@ -24997,7 +22739,7 @@ TreeNode.defaultProps = {
 exports.default = TreeNode;
 
 /***/ }),
-/* 130 */
+/* 128 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -25013,7 +22755,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(5);
+var _reactCheckboxTree = __webpack_require__(4);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -25107,7 +22849,7 @@ var CustomIconsExamples = function (_React$Component) {
 exports.default = CustomIconsExamples;
 
 /***/ }),
-/* 131 */
+/* 129 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -25123,7 +22865,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(5);
+var _reactCheckboxTree = __webpack_require__(4);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -25248,7 +22990,7 @@ var DisabledExample = function (_React$Component) {
 exports.default = DisabledExample;
 
 /***/ }),
-/* 132 */
+/* 130 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -25264,7 +23006,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(5);
+var _reactCheckboxTree = __webpack_require__(4);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -25390,7 +23132,7 @@ var NoCascadeExample = function (_React$Component) {
 exports.default = NoCascadeExample;
 
 /***/ }),
-/* 133 */
+/* 131 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -25406,7 +23148,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(5);
+var _reactCheckboxTree = __webpack_require__(4);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -25531,7 +23273,7 @@ var PessimisticToggleExample = function (_React$Component) {
 exports.default = PessimisticToggleExample;
 
 /***/ }),
-/* 134 */
+/* 132 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -25547,7 +23289,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(5);
+var _reactCheckboxTree = __webpack_require__(4);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -25635,6 +23377,221 @@ var LargeDataExample = function (_React$Component) {
 
 exports.default = LargeDataExample;
 
+/***/ }),
+/* 133 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _react = __webpack_require__(0);
+
+var _react2 = _interopRequireDefault(_react);
+
+var _reactCheckboxTree = __webpack_require__(4);
+
+var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var nodes = [{
+    value: '/app',
+    label: 'app',
+    children: [{
+        value: '/app/Http',
+        label: 'Http',
+        children: [{
+            value: '/app/Http/Controllers',
+            label: 'Controllers',
+            children: [{
+                value: '/app/Http/Controllers/WelcomeController.js',
+                label: 'WelcomeController.js'
+            }]
+        }, {
+            value: '/app/Http/routes.js',
+            label: 'routes.js'
+        }]
+    }, {
+        value: '/app/Providers',
+        label: 'Providers',
+        children: [{
+            value: '/app/Http/Providers/EventServiceProvider.js',
+            label: 'EventServiceProvider.js'
+        }]
+    }]
+}, {
+    value: '/config',
+    label: 'config',
+    children: [{
+        value: '/config/app.js',
+        label: 'app.js'
+    }, {
+        value: '/config/database.js',
+        label: 'database.js'
+    }]
+}, {
+    value: '/public',
+    label: 'public',
+    children: [{
+        value: '/public/assets/',
+        label: 'assets',
+        children: [{
+            value: '/public/assets/style.css',
+            label: 'style.css'
+        }]
+    }, {
+        value: '/public/index.html',
+        label: 'index.html'
+    }]
+}, {
+    value: '/.env',
+    label: '.env'
+}, {
+    value: '/.gitignore',
+    label: '.gitignore'
+}, {
+    value: '/README.md',
+    label: 'README.md'
+}];
+
+var SearchingExample = function (_React$Component) {
+    _inherits(SearchingExample, _React$Component);
+
+    function SearchingExample() {
+        _classCallCheck(this, SearchingExample);
+
+        var _this = _possibleConstructorReturn(this, (SearchingExample.__proto__ || Object.getPrototypeOf(SearchingExample)).call(this));
+
+        _this.state = {
+            checked: [],
+            expanded: [],
+            nodes: []
+        };
+
+        _this.onCheck = _this.onCheck.bind(_this);
+        _this.onExpand = _this.onExpand.bind(_this);
+        _this.onFilterMouseUp = _this.onFilterMouseUp.bind(_this);
+        return _this;
+    }
+
+    _createClass(SearchingExample, [{
+        key: 'componentDidMount',
+        value: function componentDidMount() {
+            this.setState({
+                nodes: nodes,
+                checked: ['/app/Http/Controllers/WelcomeController.js', '/app/Http/routes.js', '/public/assets/style.css', '/public/index.html', '/.gitignore'],
+                expanded: ['/app']
+            });
+        }
+    }, {
+        key: 'onCheck',
+        value: function onCheck(checked) {
+            this.setState({ checked: checked });
+        }
+    }, {
+        key: 'onExpand',
+        value: function onExpand(expanded) {
+            this.setState({ expanded: expanded });
+        }
+    }, {
+        key: 'onFilterMouseUp',
+        value: function onFilterMouseUp(e) {
+            var filter = e.target.value.trim();
+            if (!filter) {
+                return this.setState({ nodes: nodes });
+            }
+
+            var filtered = this.filteredNodes(JSON.parse(JSON.stringify(nodes)), filter, this.defaultMatcher);
+            return this.setState({ nodes: filtered });
+        }
+    }, {
+        key: 'defaultMatcher',
+        value: function defaultMatcher(node, filter) {
+            return node.label.trim().toLowerCase().indexOf(filter.toLowerCase()) !== -1;
+        }
+    }, {
+        key: 'filteredNodes',
+        value: function filteredNodes(nodes, filter, matcher) {
+            var _this2 = this;
+
+            var expanded = [];
+            return nodes.filter(function (node) {
+                if (matcher(node, filter)) {
+                    expanded.push(node.value);
+                    _this2.setState({ expanded: expanded });
+                    if (node.children && node.children.length) {
+                        var children = node.children.filter(function (child) {
+                            return matcher(child, filter);
+                        });
+                        if (children.length > 0) {
+                            Object.assign(node, { children: children });
+                            return true;
+                        }
+                    }
+                    return true;
+                } else {
+                    if (node.children && node.children.length) {
+                        var _children = node.children.filter(function (child) {
+                            return matcher(child, filter);
+                        });
+                        if (_children.length > 0) {
+                            expanded.push(node.value);
+                            _this2.setState({ expanded: expanded });
+                            Object.assign(node, { children: _children });
+                            return true;
+                        }
+                        return false;
+                    }
+                    return false;
+                }
+            });
+        }
+    }, {
+        key: 'render',
+        value: function render() {
+
+            return _react2.default.createElement(
+                'div',
+                null,
+                _react2.default.createElement(
+                    'div',
+                    { className: 'input-group' },
+                    _react2.default.createElement(
+                        'span',
+                        { className: 'input-group-addon', id: 'search-bar' },
+                        _react2.default.createElement('i', { className: 'fa fa-search', 'aria-hidden': 'true' })
+                    ),
+                    _react2.default.createElement('input', { type: 'text', className: 'form-control', placeholder: 'Search',
+                        'aria-describedby': 'search-bar', onKeyUp: this.onFilterMouseUp })
+                ),
+                _react2.default.createElement(_reactCheckboxTree2.default, {
+                    checked: this.state.checked,
+                    expanded: this.state.expanded,
+                    nodes: this.state.nodes,
+                    onCheck: this.onCheck,
+                    onExpand: this.onExpand
+                })
+            );
+        }
+    }]);
+
+    return SearchingExample;
+}(_react2.default.Component);
+
+exports.default = SearchingExample;
+
 /***/ })
 /******/ ]);
 });
\ No newline at end of file
diff --git a/examples/dist/style.css b/examples/dist/style.css
index d9cfebc3..0facb326 100644
--- a/examples/dist/style.css
+++ b/examples/dist/style.css
@@ -144,6 +144,35 @@
   content: "\f114";
 }
 
+.input-group {
+  position: relative;
+  display: -ms-flexbox;
+  display: -webkit-box;
+  display: flex;
+  -ms-flex-align: stretch;
+  -webkit-box-align: stretch;
+          align-items: stretch;
+  width: 100%;
+}
+
+.input-group-addon {
+  padding: .375rem .75rem;
+  margin-bottom: 0;
+  font-size: 1rem;
+  font-weight: 400;
+  line-height: 1.5;
+  color: #495057;
+  text-align: center;
+  background-color: #e9ecef;
+  border: 1px solid #ced4da;
+  border-right-width: 1px;
+  border-right-style: solid;
+  border-right-color: #ced4da;
+  border-radius: .25rem;
+  border-top-right-radius: 0.25rem;
+  border-bottom-right-radius: 0.25rem;
+}
+
 * {
   -webkit-box-sizing: border-box;
           box-sizing: border-box;
diff --git a/examples/src/index.html b/examples/src/index.html
index 514d9a8a..9bfbc720 100644
--- a/examples/src/index.html
+++ b/examples/src/index.html
@@ -56,6 +56,11 @@ <h2>Large Data Example</h2>
       <p>The checkbox tree is capable of supporting a large number of nodes at once.</p>
       <div id="large-data-example"></div>
 
+      <h2>SearchingExample</h2>
+      <p>Real Time Searching and Lazy Loading</p>
+      <div id="searching-example"></div>
+
+
       <footer class="site-footer">
         <span class="site-footer-owner">
           <a href="https://github.com/jakezatecky/react-checkbox-tree">React Checkbox Tree</a> is maintained by <a href="https://github.com/jakezatecky">jakezatecky</a>.
diff --git a/examples/src/index.js b/examples/src/index.js
index 612522a4..700b47b9 100644
--- a/examples/src/index.js
+++ b/examples/src/index.js
@@ -7,6 +7,7 @@ import DisabledExample from './js/DisabledExample';
 import NoCascadeExample from './js/NoCascadeExample';
 import PessimisticToggleExample from './js/PessimisticToggleExample';
 import LargeDataExample from './js/LargeDataExample';
+import SearchingExample from './js/SearchingExample';
 
 ReactDOM.render(<BasicExample />, document.getElementById('basic-example'));
 ReactDOM.render(<CustomIconsExample />, document.getElementById('custom-icons-example'));
@@ -14,3 +15,4 @@ ReactDOM.render(<DisabledExample />, document.getElementById('disabled-example')
 ReactDOM.render(<NoCascadeExample />, document.getElementById('no-cascade-example'));
 ReactDOM.render(<PessimisticToggleExample />, document.getElementById('pessimistic-toggle-example'));
 ReactDOM.render(<LargeDataExample />, document.getElementById('large-data-example'));
+ReactDOM.render(<SearchingExample />, document.getElementById('searching-example'));
diff --git a/examples/src/js/SearchingExample.js b/examples/src/js/SearchingExample.js
new file mode 100644
index 00000000..6bebfe43
--- /dev/null
+++ b/examples/src/js/SearchingExample.js
@@ -0,0 +1,189 @@
+import React from 'react';
+import CheckboxTree from 'react-checkbox-tree';
+
+const nodes = [
+    {
+        value: '/app',
+        label: 'app',
+        children: [
+            {
+                value: '/app/Http',
+                label: 'Http',
+                children: [
+                    {
+                        value: '/app/Http/Controllers',
+                        label: 'Controllers',
+                        children: [{
+                            value: '/app/Http/Controllers/WelcomeController.js',
+                            label: 'WelcomeController.js',
+                        }],
+                    },
+                    {
+                        value: '/app/Http/routes.js',
+                        label: 'routes.js',
+                    },
+                ],
+            },
+            {
+                value: '/app/Providers',
+                label: 'Providers',
+                children: [{
+                    value: '/app/Http/Providers/EventServiceProvider.js',
+                    label: 'EventServiceProvider.js',
+                }],
+            },
+        ],
+    },
+    {
+        value: '/config',
+        label: 'config',
+        children: [
+            {
+                value: '/config/app.js',
+                label: 'app.js',
+            },
+            {
+                value: '/config/database.js',
+                label: 'database.js',
+            },
+        ],
+    },
+    {
+        value: '/public',
+        label: 'public',
+        children: [
+            {
+                value: '/public/assets/',
+                label: 'assets',
+                children: [{
+                    value: '/public/assets/style.css',
+                    label: 'style.css',
+                }],
+            },
+            {
+                value: '/public/index.html',
+                label: 'index.html',
+            },
+        ],
+    },
+    {
+        value: '/.env',
+        label: '.env',
+    },
+    {
+        value: '/.gitignore',
+        label: '.gitignore',
+    },
+    {
+        value: '/README.md',
+        label: 'README.md',
+    },
+];
+
+class SearchingExample extends React.Component {
+    constructor() {
+        super();
+
+        this.state = {
+            checked: [],
+            expanded: [],
+            nodes:[]
+        };
+
+        this.onCheck = this.onCheck.bind(this);
+        this.onExpand = this.onExpand.bind(this);
+        this.onFilterMouseUp = this.onFilterMouseUp.bind(this);
+    }
+
+    componentDidMount() {
+        this.setState({ 
+            nodes: nodes,
+            checked: [
+                '/app/Http/Controllers/WelcomeController.js',
+                '/app/Http/routes.js',
+                '/public/assets/style.css',
+                '/public/index.html',
+                '/.gitignore'
+            ],
+            expanded: [
+                '/app'
+            ]
+        });
+    }
+
+    onCheck(checked) {
+        this.setState({ checked });
+    }
+
+    onExpand(expanded) {
+        this.setState({ expanded });
+    }
+
+    onFilterMouseUp(e) {
+        let filter = e.target.value.trim();
+        if (!filter) {
+            return this.setState({ nodes: nodes });
+        }
+
+        let filtered = this.filteredNodes(JSON.parse(JSON.stringify(nodes)), filter, this.defaultMatcher);
+        return this.setState({ nodes: filtered });
+    }
+
+    defaultMatcher(node, filter) {
+        return node.label.trim().toLowerCase().indexOf(filter.toLowerCase()) !== -1;
+    }
+
+    filteredNodes(nodes, filter, matcher) {
+        let expanded = [];
+        return nodes
+            .filter(node => {
+                if (matcher(node, filter)) {
+                    expanded.push(node.value);
+                    this.setState({ expanded });
+                    if (node.children && node.children.length) {
+                        let children = node.children.filter(child => (matcher(child, filter)));
+                        if (children.length > 0) {
+                            Object.assign(node, { children: children });
+                            return true;
+                        }
+                    }
+                    return true;
+                } else {
+                    if (node.children && node.children.length) {
+                        let children = node.children.filter(child => (matcher(child, filter)));
+                        if (children.length > 0) {
+                            expanded.push(node.value);
+                            this.setState({ expanded });
+                            Object.assign(node, { children: children });
+                            return true;
+                        }
+                        return false;
+                    }
+                    return false;
+                }
+            });
+    };
+
+    render() {
+    
+        return (
+            <div>
+                <div className="input-group">
+                    <span className="input-group-addon" id="search-bar">
+                        <i className="fa fa-search" aria-hidden="true"/></span>
+                    <input type="text" className="form-control" placeholder="Search"
+                           aria-describedby="search-bar" onKeyUp={this.onFilterMouseUp}/>
+                </div>
+                <CheckboxTree
+                    checked={this.state.checked}
+                    expanded={this.state.expanded}
+                    nodes={this.state.nodes}
+                    onCheck={this.onCheck}
+                    onExpand={this.onExpand}
+                />
+            </div>
+        );
+    }
+}
+
+export default SearchingExample;
diff --git a/src/js/CheckboxTree.js b/src/js/CheckboxTree.js
index 1c082534..ac038430 100644
--- a/src/js/CheckboxTree.js
+++ b/src/js/CheckboxTree.js
@@ -55,11 +55,8 @@ class CheckboxTree extends React.Component {
     }
 
     componentWillReceiveProps({ nodes, checked, expanded }) {
-        if (!isEqual(this.props.nodes, nodes)) {
             this.flattenNodes(nodes);
-        }
-
-        this.unserializeLists({ checked, expanded });
+            this.unserializeLists({ checked, expanded });
     }
 
     onCheck(node) {
diff --git a/src/scss/react-checkbox-tree.scss b/src/scss/react-checkbox-tree.scss
index 1d63c4ef..a6dde7a7 100644
--- a/src/scss/react-checkbox-tree.scss
+++ b/src/scss/react-checkbox-tree.scss
@@ -143,3 +143,30 @@ $rct-label-active: rgba($rct-icon-color, .15) !default;
 .rct-icon-parent-close::before {
   content: "\f114";
 }
+
+.input-group {
+  position: relative;
+  display: -ms-flexbox;
+  display: flex;
+  -ms-flex-align: stretch;
+  align-items: stretch;
+  width: 100%;
+}
+
+.input-group-addon {
+  padding: .375rem .75rem;
+  margin-bottom: 0;
+  font-size: 1rem;
+  font-weight: 400;
+  line-height: 1.5;
+  color: #495057;
+  text-align: center;
+  background-color: #e9ecef;
+  border: 1px solid #ced4da;
+  border-right-width: 1px;
+  border-right-style: solid;
+  border-right-color: rgb(206, 212, 218);
+  border-radius: .25rem;
+  border-top-right-radius: 0.25rem;
+  border-bottom-right-radius: 0.25rem;
+}
\ No newline at end of file

From 39d45ec89dc1135e2236a908c2379654eb293015 Mon Sep 17 00:00:00 2001
From: Qingbao <qingbao86@gmail.com>
Date: Sun, 3 Dec 2017 01:03:45 +0100
Subject: [PATCH 2/4] Removed CSS

---
 examples/dist/style.css           | 29 -----------------------------
 src/scss/react-checkbox-tree.scss | 27 ---------------------------
 2 files changed, 56 deletions(-)

diff --git a/examples/dist/style.css b/examples/dist/style.css
index 0facb326..d9cfebc3 100644
--- a/examples/dist/style.css
+++ b/examples/dist/style.css
@@ -144,35 +144,6 @@
   content: "\f114";
 }
 
-.input-group {
-  position: relative;
-  display: -ms-flexbox;
-  display: -webkit-box;
-  display: flex;
-  -ms-flex-align: stretch;
-  -webkit-box-align: stretch;
-          align-items: stretch;
-  width: 100%;
-}
-
-.input-group-addon {
-  padding: .375rem .75rem;
-  margin-bottom: 0;
-  font-size: 1rem;
-  font-weight: 400;
-  line-height: 1.5;
-  color: #495057;
-  text-align: center;
-  background-color: #e9ecef;
-  border: 1px solid #ced4da;
-  border-right-width: 1px;
-  border-right-style: solid;
-  border-right-color: #ced4da;
-  border-radius: .25rem;
-  border-top-right-radius: 0.25rem;
-  border-bottom-right-radius: 0.25rem;
-}
-
 * {
   -webkit-box-sizing: border-box;
           box-sizing: border-box;
diff --git a/src/scss/react-checkbox-tree.scss b/src/scss/react-checkbox-tree.scss
index a6dde7a7..a1621537 100644
--- a/src/scss/react-checkbox-tree.scss
+++ b/src/scss/react-checkbox-tree.scss
@@ -142,31 +142,4 @@ $rct-label-active: rgba($rct-icon-color, .15) !default;
 
 .rct-icon-parent-close::before {
   content: "\f114";
-}
-
-.input-group {
-  position: relative;
-  display: -ms-flexbox;
-  display: flex;
-  -ms-flex-align: stretch;
-  align-items: stretch;
-  width: 100%;
-}
-
-.input-group-addon {
-  padding: .375rem .75rem;
-  margin-bottom: 0;
-  font-size: 1rem;
-  font-weight: 400;
-  line-height: 1.5;
-  color: #495057;
-  text-align: center;
-  background-color: #e9ecef;
-  border: 1px solid #ced4da;
-  border-right-width: 1px;
-  border-right-style: solid;
-  border-right-color: rgb(206, 212, 218);
-  border-radius: .25rem;
-  border-top-right-radius: 0.25rem;
-  border-bottom-right-radius: 0.25rem;
 }
\ No newline at end of file

From 2d4a95666725c87314f16f4b60635810deb0d080 Mon Sep 17 00:00:00 2001
From: Qingbao <qingbao86@gmail.com>
Date: Sun, 3 Dec 2017 01:10:41 +0100
Subject: [PATCH 3/4] react-checkbox-tree.scss:145 [W] FinalNewline: Files
 should end with a trailing newline

---
 src/scss/react-checkbox-tree.scss | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/scss/react-checkbox-tree.scss b/src/scss/react-checkbox-tree.scss
index a1621537..6df0ba2e 100644
--- a/src/scss/react-checkbox-tree.scss
+++ b/src/scss/react-checkbox-tree.scss
@@ -142,4 +142,5 @@ $rct-label-active: rgba($rct-icon-color, .15) !default;
 
 .rct-icon-parent-close::before {
   content: "\f114";
-}
\ No newline at end of file
+}
+

From bbfedb468327883b8292cf00e4a2a48d99d297b9 Mon Sep 17 00:00:00 2001
From: Qingbao <qingbao86@gmail.com>
Date: Sun, 3 Dec 2017 09:57:32 +0100
Subject: [PATCH 4/4] Removed unused import

---
 examples/dist/index.js            | 3571 +++--------------------------
 src/js/CheckboxTree.js            |    5 +-
 src/scss/react-checkbox-tree.scss |    1 -
 3 files changed, 347 insertions(+), 3230 deletions(-)

diff --git a/examples/dist/index.js b/examples/dist/index.js
index 1f35ebae..ead91f33 100644
--- a/examples/dist/index.js
+++ b/examples/dist/index.js
@@ -70,7 +70,7 @@ return /******/ (function(modules) { // webpackBootstrap
 /******/ 	__webpack_require__.p = "";
 /******/
 /******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(__webpack_require__.s = 41);
+/******/ 	return __webpack_require__(__webpack_require__.s = 19);
 /******/ })
 /************************************************************************/
 /******/ ([
@@ -81,9 +81,9 @@ return /******/ (function(modules) { // webpackBootstrap
 /* WEBPACK VAR INJECTION */(function(process) {
 
 if (process.env.NODE_ENV === 'production') {
-  module.exports = __webpack_require__(42);
+  module.exports = __webpack_require__(20);
 } else {
-  module.exports = __webpack_require__(43);
+  module.exports = __webpack_require__(21);
 }
 
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
@@ -282,21 +282,6 @@ process.umask = function() { return 0; };
 /* 2 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var freeGlobal = __webpack_require__(31);
-
-/** Detect free variable `self`. */
-var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
-
-/** Used as a reference to the global object. */
-var root = freeGlobal || freeSelf || Function('return this')();
-
-module.exports = root;
-
-
-/***/ }),
-/* 3 */
-/***/ (function(module, exports, __webpack_require__) {
-
 "use strict";
 
 
@@ -336,7 +321,7 @@ emptyFunction.thatReturnsArgument = function (arg) {
 module.exports = emptyFunction;
 
 /***/ }),
-/* 4 */
+/* 3 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -350,15 +335,11 @@ var _extends = Object.assign || function (target) { for (var i = 1; i < argument
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _classnames = __webpack_require__(28);
+var _classnames = __webpack_require__(17);
 
 var _classnames2 = _interopRequireDefault(_classnames);
 
-var _isEqual = __webpack_require__(54);
-
-var _isEqual2 = _interopRequireDefault(_isEqual);
-
-var _propTypes = __webpack_require__(21);
+var _propTypes = __webpack_require__(10);
 
 var _propTypes2 = _interopRequireDefault(_propTypes);
 
@@ -366,15 +347,15 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _nanoid = __webpack_require__(125);
+var _nanoid = __webpack_require__(34);
 
 var _nanoid2 = _interopRequireDefault(_nanoid);
 
-var _TreeNode = __webpack_require__(127);
+var _TreeNode = __webpack_require__(36);
 
 var _TreeNode2 = _interopRequireDefault(_TreeNode);
 
-var _nodeShape = __webpack_require__(40);
+var _nodeShape = __webpack_require__(18);
 
 var _nodeShape2 = _interopRequireDefault(_nodeShape);
 
@@ -723,30 +704,7 @@ CheckboxTree.defaultProps = {
 exports.default = CheckboxTree;
 
 /***/ }),
-/* 5 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseIsNative = __webpack_require__(68),
-    getValue = __webpack_require__(74);
-
-/**
- * Gets the native function at `key` of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {string} key The key of the method to get.
- * @returns {*} Returns the function if it's native, else `undefined`.
- */
-function getNative(object, key) {
-  var value = getValue(object, key);
-  return baseIsNative(value) ? value : undefined;
-}
-
-module.exports = getNative;
-
-
-/***/ }),
-/* 6 */
+/* 4 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -843,7 +801,7 @@ module.exports = shouldUseNative() ? Object.assign : function (target, source) {
 
 
 /***/ }),
-/* 7 */
+/* 5 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -903,7 +861,7 @@ module.exports = invariant;
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 8 */
+/* 6 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -927,7 +885,7 @@ module.exports = emptyObject;
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 9 */
+/* 7 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -941,7 +899,7 @@ module.exports = emptyObject;
 
 
 
-var emptyFunction = __webpack_require__(3);
+var emptyFunction = __webpack_require__(2);
 
 /**
  * Similar to invariant but only logs a warning if the condition is not met.
@@ -996,177 +954,7 @@ module.exports = warning;
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 10 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var listCacheClear = __webpack_require__(58),
-    listCacheDelete = __webpack_require__(59),
-    listCacheGet = __webpack_require__(60),
-    listCacheHas = __webpack_require__(61),
-    listCacheSet = __webpack_require__(62);
-
-/**
- * Creates an list cache object.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function ListCache(entries) {
-  var index = -1,
-      length = entries == null ? 0 : entries.length;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-// Add methods to `ListCache`.
-ListCache.prototype.clear = listCacheClear;
-ListCache.prototype['delete'] = listCacheDelete;
-ListCache.prototype.get = listCacheGet;
-ListCache.prototype.has = listCacheHas;
-ListCache.prototype.set = listCacheSet;
-
-module.exports = ListCache;
-
-
-/***/ }),
-/* 11 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var eq = __webpack_require__(29);
-
-/**
- * Gets the index at which the `key` is found in `array` of key-value pairs.
- *
- * @private
- * @param {Array} array The array to inspect.
- * @param {*} key The key to search for.
- * @returns {number} Returns the index of the matched value, else `-1`.
- */
-function assocIndexOf(array, key) {
-  var length = array.length;
-  while (length--) {
-    if (eq(array[length][0], key)) {
-      return length;
-    }
-  }
-  return -1;
-}
-
-module.exports = assocIndexOf;
-
-
-/***/ }),
-/* 12 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Symbol = __webpack_require__(19),
-    getRawTag = __webpack_require__(70),
-    objectToString = __webpack_require__(71);
-
-/** `Object#toString` result references. */
-var nullTag = '[object Null]',
-    undefinedTag = '[object Undefined]';
-
-/** Built-in value references. */
-var symToStringTag = Symbol ? Symbol.toStringTag : undefined;
-
-/**
- * The base implementation of `getTag` without fallbacks for buggy environments.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-function baseGetTag(value) {
-  if (value == null) {
-    return value === undefined ? undefinedTag : nullTag;
-  }
-  return (symToStringTag && symToStringTag in Object(value))
-    ? getRawTag(value)
-    : objectToString(value);
-}
-
-module.exports = baseGetTag;
-
-
-/***/ }),
-/* 13 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var getNative = __webpack_require__(5);
-
-/* Built-in method references that are verified to be native. */
-var nativeCreate = getNative(Object, 'create');
-
-module.exports = nativeCreate;
-
-
-/***/ }),
-/* 14 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var isKeyable = __webpack_require__(83);
-
-/**
- * Gets the data for `map`.
- *
- * @private
- * @param {Object} map The map to query.
- * @param {string} key The reference key.
- * @returns {*} Returns the map data.
- */
-function getMapData(map, key) {
-  var data = map.__data__;
-  return isKeyable(key)
-    ? data[typeof key == 'string' ? 'string' : 'hash']
-    : data.map;
-}
-
-module.exports = getMapData;
-
-
-/***/ }),
-/* 15 */
-/***/ (function(module, exports) {
-
-/**
- * Checks if `value` is object-like. A value is object-like if it's not `null`
- * and has a `typeof` result of "object".
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
- * @example
- *
- * _.isObjectLike({});
- * // => true
- *
- * _.isObjectLike([1, 2, 3]);
- * // => true
- *
- * _.isObjectLike(_.noop);
- * // => false
- *
- * _.isObjectLike(null);
- * // => false
- */
-function isObjectLike(value) {
-  return value != null && typeof value == 'object';
-}
-
-module.exports = isObjectLike;
-
-
-/***/ }),
-/* 16 */
+/* 8 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1180,9 +968,9 @@ module.exports = isObjectLike;
 
 
 if (process.env.NODE_ENV !== 'production') {
-  var invariant = __webpack_require__(7);
-  var warning = __webpack_require__(9);
-  var ReactPropTypesSecret = __webpack_require__(17);
+  var invariant = __webpack_require__(5);
+  var warning = __webpack_require__(7);
+  var ReactPropTypesSecret = __webpack_require__(9);
   var loggedTypeFailures = {};
 }
 
@@ -1233,7 +1021,7 @@ module.exports = checkPropTypes;
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 17 */
+/* 9 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1252,64 +1040,7 @@ module.exports = ReactPropTypesSecret;
 
 
 /***/ }),
-/* 18 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var getNative = __webpack_require__(5),
-    root = __webpack_require__(2);
-
-/* Built-in method references that are verified to be native. */
-var Map = getNative(root, 'Map');
-
-module.exports = Map;
-
-
-/***/ }),
-/* 19 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var root = __webpack_require__(2);
-
-/** Built-in value references. */
-var Symbol = root.Symbol;
-
-module.exports = Symbol;
-
-
-/***/ }),
-/* 20 */
-/***/ (function(module, exports) {
-
-/**
- * Checks if `value` is classified as an `Array` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an array, else `false`.
- * @example
- *
- * _.isArray([1, 2, 3]);
- * // => true
- *
- * _.isArray(document.body.children);
- * // => false
- *
- * _.isArray('abc');
- * // => false
- *
- * _.isArray(_.noop);
- * // => false
- */
-var isArray = Array.isArray;
-
-module.exports = isArray;
-
-
-/***/ }),
-/* 21 */
+/* 10 */
 /***/ (function(module, exports, __webpack_require__) {
 
 /* WEBPACK VAR INJECTION */(function(process) {/**
@@ -1334,17 +1065,17 @@ if (process.env.NODE_ENV !== 'production') {
   // By explicitly using `prop-types` you are opting into new development behavior.
   // http://fb.me/prop-types-in-prod
   var throwOnDirectAccess = true;
-  module.exports = __webpack_require__(123)(isValidElement, throwOnDirectAccess);
+  module.exports = __webpack_require__(32)(isValidElement, throwOnDirectAccess);
 } else {
   // By explicitly using `prop-types` you are opting into new production behavior.
   // http://fb.me/prop-types-in-prod
-  module.exports = __webpack_require__(124)();
+  module.exports = __webpack_require__(33)();
 }
 
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 22 */
+/* 11 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1383,7 +1114,7 @@ var ExecutionEnvironment = {
 module.exports = ExecutionEnvironment;
 
 /***/ }),
-/* 23 */
+/* 12 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1398,7 +1129,7 @@ module.exports = ExecutionEnvironment;
  * @typechecks
  */
 
-var emptyFunction = __webpack_require__(3);
+var emptyFunction = __webpack_require__(2);
 
 /**
  * Upstream version of event listener. Does not take into account specific
@@ -1464,7 +1195,7 @@ module.exports = EventListener;
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 24 */
+/* 13 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1506,7 +1237,7 @@ function getActiveElement(doc) /*?DOMElement*/{
 module.exports = getActiveElement;
 
 /***/ }),
-/* 25 */
+/* 14 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1577,7 +1308,7 @@ function shallowEqual(objA, objB) {
 module.exports = shallowEqual;
 
 /***/ }),
-/* 26 */
+/* 15 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1592,7 +1323,7 @@ module.exports = shallowEqual;
  * 
  */
 
-var isTextNode = __webpack_require__(46);
+var isTextNode = __webpack_require__(24);
 
 /*eslint-disable no-bitwise */
 
@@ -1620,7 +1351,7 @@ function containsNode(outerNode, innerNode) {
 module.exports = containsNode;
 
 /***/ }),
-/* 27 */
+/* 16 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -1650,7 +1381,7 @@ function focusNode(node) {
 module.exports = focusNode;
 
 /***/ }),
-/* 28 */
+/* 17 */
 /***/ (function(module, exports, __webpack_require__) {
 
 var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
@@ -1705,517 +1436,77 @@ var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
 
 
 /***/ }),
-/* 29 */
-/***/ (function(module, exports) {
+/* 18 */
+/***/ (function(module, exports, __webpack_require__) {
 
-/**
- * Performs a
- * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
- * comparison between two values to determine if they are equivalent.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- * @example
- *
- * var object = { 'a': 1 };
- * var other = { 'a': 1 };
- *
- * _.eq(object, object);
- * // => true
- *
- * _.eq(object, other);
- * // => false
- *
- * _.eq('a', 'a');
- * // => true
- *
- * _.eq('a', Object('a'));
- * // => false
- *
- * _.eq(NaN, NaN);
- * // => true
- */
-function eq(value, other) {
-  return value === other || (value !== value && other !== other);
-}
+"use strict";
 
-module.exports = eq;
 
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
 
-/***/ }),
-/* 30 */
-/***/ (function(module, exports, __webpack_require__) {
+var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
 
-var baseGetTag = __webpack_require__(12),
-    isObject = __webpack_require__(32);
+var _propTypes = __webpack_require__(10);
 
-/** `Object#toString` result references. */
-var asyncTag = '[object AsyncFunction]',
-    funcTag = '[object Function]',
-    genTag = '[object GeneratorFunction]',
-    proxyTag = '[object Proxy]';
+var _propTypes2 = _interopRequireDefault(_propTypes);
 
-/**
- * Checks if `value` is classified as a `Function` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a function, else `false`.
- * @example
- *
- * _.isFunction(_);
- * // => true
- *
- * _.isFunction(/abc/);
- * // => false
- */
-function isFunction(value) {
-  if (!isObject(value)) {
-    return false;
-  }
-  // The use of `Object#toString` avoids issues with the `typeof` operator
-  // in Safari 9 which returns 'object' for typed arrays and other constructors.
-  var tag = baseGetTag(value);
-  return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
-}
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var nodeShape = {
+    label: _propTypes2.default.node.isRequired,
+    value: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.number]).isRequired,
+
+    icon: _propTypes2.default.node
+};
 
-module.exports = isFunction;
+var nodeShapeWithChildren = _propTypes2.default.oneOfType([_propTypes2.default.shape(nodeShape), _propTypes2.default.shape(_extends({}, nodeShape, {
+    children: _propTypes2.default.arrayOf(nodeShape).isRequired
+}))]);
 
+exports.default = nodeShapeWithChildren;
 
 /***/ }),
-/* 31 */
+/* 19 */
 /***/ (function(module, exports, __webpack_require__) {
 
-/* WEBPACK VAR INJECTION */(function(global) {/** Detect free variable `global` from Node.js. */
-var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
+"use strict";
 
-module.exports = freeGlobal;
 
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(69)))
+var _react = __webpack_require__(0);
 
-/***/ }),
-/* 32 */
-/***/ (function(module, exports) {
+var _react2 = _interopRequireDefault(_react);
 
-/**
- * Checks if `value` is the
- * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
- * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an object, else `false`.
- * @example
- *
- * _.isObject({});
- * // => true
- *
- * _.isObject([1, 2, 3]);
- * // => true
- *
- * _.isObject(_.noop);
- * // => true
- *
- * _.isObject(null);
- * // => false
- */
-function isObject(value) {
-  var type = typeof value;
-  return value != null && (type == 'object' || type == 'function');
-}
+var _reactDom = __webpack_require__(22);
 
-module.exports = isObject;
+var _reactDom2 = _interopRequireDefault(_reactDom);
 
+var _BasicExample = __webpack_require__(31);
 
-/***/ }),
-/* 33 */
-/***/ (function(module, exports) {
+var _BasicExample2 = _interopRequireDefault(_BasicExample);
 
-/** Used for built-in method references. */
-var funcProto = Function.prototype;
+var _CustomIconsExample = __webpack_require__(37);
 
-/** Used to resolve the decompiled source of functions. */
-var funcToString = funcProto.toString;
+var _CustomIconsExample2 = _interopRequireDefault(_CustomIconsExample);
 
-/**
- * Converts `func` to its source code.
- *
- * @private
- * @param {Function} func The function to convert.
- * @returns {string} Returns the source code.
- */
-function toSource(func) {
-  if (func != null) {
-    try {
-      return funcToString.call(func);
-    } catch (e) {}
-    try {
-      return (func + '');
-    } catch (e) {}
-  }
-  return '';
-}
+var _DisabledExample = __webpack_require__(38);
 
-module.exports = toSource;
+var _DisabledExample2 = _interopRequireDefault(_DisabledExample);
 
+var _NoCascadeExample = __webpack_require__(39);
 
-/***/ }),
-/* 34 */
-/***/ (function(module, exports, __webpack_require__) {
+var _NoCascadeExample2 = _interopRequireDefault(_NoCascadeExample);
 
-var mapCacheClear = __webpack_require__(75),
-    mapCacheDelete = __webpack_require__(82),
-    mapCacheGet = __webpack_require__(84),
-    mapCacheHas = __webpack_require__(85),
-    mapCacheSet = __webpack_require__(86);
-
-/**
- * Creates a map cache object to store key-value pairs.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function MapCache(entries) {
-  var index = -1,
-      length = entries == null ? 0 : entries.length;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-// Add methods to `MapCache`.
-MapCache.prototype.clear = mapCacheClear;
-MapCache.prototype['delete'] = mapCacheDelete;
-MapCache.prototype.get = mapCacheGet;
-MapCache.prototype.has = mapCacheHas;
-MapCache.prototype.set = mapCacheSet;
-
-module.exports = MapCache;
-
-
-/***/ }),
-/* 35 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var SetCache = __webpack_require__(87),
-    arraySome = __webpack_require__(90),
-    cacheHas = __webpack_require__(91);
-
-/** Used to compose bitmasks for value comparisons. */
-var COMPARE_PARTIAL_FLAG = 1,
-    COMPARE_UNORDERED_FLAG = 2;
-
-/**
- * A specialized version of `baseIsEqualDeep` for arrays with support for
- * partial deep comparisons.
- *
- * @private
- * @param {Array} array The array to compare.
- * @param {Array} other The other array to compare.
- * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
- * @param {Function} customizer The function to customize comparisons.
- * @param {Function} equalFunc The function to determine equivalents of values.
- * @param {Object} stack Tracks traversed `array` and `other` objects.
- * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
- */
-function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
-  var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
-      arrLength = array.length,
-      othLength = other.length;
-
-  if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
-    return false;
-  }
-  // Assume cyclic values are equal.
-  var stacked = stack.get(array);
-  if (stacked && stack.get(other)) {
-    return stacked == other;
-  }
-  var index = -1,
-      result = true,
-      seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;
-
-  stack.set(array, other);
-  stack.set(other, array);
-
-  // Ignore non-index properties.
-  while (++index < arrLength) {
-    var arrValue = array[index],
-        othValue = other[index];
-
-    if (customizer) {
-      var compared = isPartial
-        ? customizer(othValue, arrValue, index, other, array, stack)
-        : customizer(arrValue, othValue, index, array, other, stack);
-    }
-    if (compared !== undefined) {
-      if (compared) {
-        continue;
-      }
-      result = false;
-      break;
-    }
-    // Recursively compare arrays (susceptible to call stack limits).
-    if (seen) {
-      if (!arraySome(other, function(othValue, othIndex) {
-            if (!cacheHas(seen, othIndex) &&
-                (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
-              return seen.push(othIndex);
-            }
-          })) {
-        result = false;
-        break;
-      }
-    } else if (!(
-          arrValue === othValue ||
-            equalFunc(arrValue, othValue, bitmask, customizer, stack)
-        )) {
-      result = false;
-      break;
-    }
-  }
-  stack['delete'](array);
-  stack['delete'](other);
-  return result;
-}
-
-module.exports = equalArrays;
-
-
-/***/ }),
-/* 36 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/* WEBPACK VAR INJECTION */(function(module) {var root = __webpack_require__(2),
-    stubFalse = __webpack_require__(108);
-
-/** Detect free variable `exports`. */
-var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
-
-/** Detect free variable `module`. */
-var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
-
-/** Detect the popular CommonJS extension `module.exports`. */
-var moduleExports = freeModule && freeModule.exports === freeExports;
-
-/** Built-in value references. */
-var Buffer = moduleExports ? root.Buffer : undefined;
-
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined;
-
-/**
- * Checks if `value` is a buffer.
- *
- * @static
- * @memberOf _
- * @since 4.3.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
- * @example
- *
- * _.isBuffer(new Buffer(2));
- * // => true
- *
- * _.isBuffer(new Uint8Array(2));
- * // => false
- */
-var isBuffer = nativeIsBuffer || stubFalse;
-
-module.exports = isBuffer;
-
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(37)(module)))
-
-/***/ }),
-/* 37 */
-/***/ (function(module, exports) {
-
-module.exports = function(module) {
-	if(!module.webpackPolyfill) {
-		module.deprecate = function() {};
-		module.paths = [];
-		// module.parent = undefined by default
-		if(!module.children) module.children = [];
-		Object.defineProperty(module, "loaded", {
-			enumerable: true,
-			get: function() {
-				return module.l;
-			}
-		});
-		Object.defineProperty(module, "id", {
-			enumerable: true,
-			get: function() {
-				return module.i;
-			}
-		});
-		module.webpackPolyfill = 1;
-	}
-	return module;
-};
-
-
-/***/ }),
-/* 38 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseIsTypedArray = __webpack_require__(110),
-    baseUnary = __webpack_require__(111),
-    nodeUtil = __webpack_require__(112);
-
-/* Node.js helper references. */
-var nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
-
-/**
- * Checks if `value` is classified as a typed array.
- *
- * @static
- * @memberOf _
- * @since 3.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
- * @example
- *
- * _.isTypedArray(new Uint8Array);
- * // => true
- *
- * _.isTypedArray([]);
- * // => false
- */
-var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;
-
-module.exports = isTypedArray;
-
-
-/***/ }),
-/* 39 */
-/***/ (function(module, exports) {
-
-/** Used as references for various `Number` constants. */
-var MAX_SAFE_INTEGER = 9007199254740991;
-
-/**
- * Checks if `value` is a valid array-like length.
- *
- * **Note:** This method is loosely based on
- * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
- * @example
- *
- * _.isLength(3);
- * // => true
- *
- * _.isLength(Number.MIN_VALUE);
- * // => false
- *
- * _.isLength(Infinity);
- * // => false
- *
- * _.isLength('3');
- * // => false
- */
-function isLength(value) {
-  return typeof value == 'number' &&
-    value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
-}
-
-module.exports = isLength;
-
-
-/***/ }),
-/* 40 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-    value: true
-});
-
-var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
-
-var _propTypes = __webpack_require__(21);
-
-var _propTypes2 = _interopRequireDefault(_propTypes);
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-var nodeShape = {
-    label: _propTypes2.default.node.isRequired,
-    value: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.number]).isRequired,
-
-    icon: _propTypes2.default.node
-};
-
-var nodeShapeWithChildren = _propTypes2.default.oneOfType([_propTypes2.default.shape(nodeShape), _propTypes2.default.shape(_extends({}, nodeShape, {
-    children: _propTypes2.default.arrayOf(nodeShape).isRequired
-}))]);
-
-exports.default = nodeShapeWithChildren;
-
-/***/ }),
-/* 41 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-var _react = __webpack_require__(0);
-
-var _react2 = _interopRequireDefault(_react);
-
-var _reactDom = __webpack_require__(44);
-
-var _reactDom2 = _interopRequireDefault(_reactDom);
-
-var _BasicExample = __webpack_require__(53);
-
-var _BasicExample2 = _interopRequireDefault(_BasicExample);
-
-var _CustomIconsExample = __webpack_require__(128);
-
-var _CustomIconsExample2 = _interopRequireDefault(_CustomIconsExample);
-
-var _DisabledExample = __webpack_require__(129);
-
-var _DisabledExample2 = _interopRequireDefault(_DisabledExample);
-
-var _NoCascadeExample = __webpack_require__(130);
-
-var _NoCascadeExample2 = _interopRequireDefault(_NoCascadeExample);
-
-var _PessimisticToggleExample = __webpack_require__(131);
+var _PessimisticToggleExample = __webpack_require__(40);
 
 var _PessimisticToggleExample2 = _interopRequireDefault(_PessimisticToggleExample);
 
-var _LargeDataExample = __webpack_require__(132);
+var _LargeDataExample = __webpack_require__(41);
 
 var _LargeDataExample2 = _interopRequireDefault(_LargeDataExample);
 
-var _SearchingExample = __webpack_require__(133);
+var _SearchingExample = __webpack_require__(42);
 
 var _SearchingExample2 = _interopRequireDefault(_SearchingExample);
 
@@ -2230,7 +1521,7 @@ _reactDom2.default.render(_react2.default.createElement(_LargeDataExample2.defau
 _reactDom2.default.render(_react2.default.createElement(_SearchingExample2.default, null), document.getElementById('searching-example'));
 
 /***/ }),
-/* 42 */
+/* 20 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -2243,7 +1534,7 @@ _reactDom2.default.render(_react2.default.createElement(_SearchingExample2.defau
  * LICENSE file in the root directory of this source tree.
  */
 
-var m=__webpack_require__(6),n=__webpack_require__(8),p=__webpack_require__(3),q="function"===typeof Symbol&&Symbol["for"],r=q?Symbol["for"]("react.element"):60103,t=q?Symbol["for"]("react.call"):60104,u=q?Symbol["for"]("react.return"):60105,v=q?Symbol["for"]("react.portal"):60106,w=q?Symbol["for"]("react.fragment"):60107,x="function"===typeof Symbol&&Symbol.iterator;
+var m=__webpack_require__(4),n=__webpack_require__(6),p=__webpack_require__(2),q="function"===typeof Symbol&&Symbol["for"],r=q?Symbol["for"]("react.element"):60103,t=q?Symbol["for"]("react.call"):60104,u=q?Symbol["for"]("react.return"):60105,v=q?Symbol["for"]("react.portal"):60106,w=q?Symbol["for"]("react.fragment"):60107,x="function"===typeof Symbol&&Symbol.iterator;
 function y(a){for(var b=arguments.length-1,e="Minified React error #"+a+"; visit http://facebook.github.io/react/docs/error-decoder.html?invariant\x3d"+a,c=0;c<b;c++)e+="\x26args[]\x3d"+encodeURIComponent(arguments[c+1]);b=Error(e+" for the full message or use the non-minified dev environment for full errors and additional helpful warnings.");b.name="Invariant Violation";b.framesToPop=1;throw b;}
 var z={isMounted:function(){return!1},enqueueForceUpdate:function(){},enqueueReplaceState:function(){},enqueueSetState:function(){}};function A(a,b,e){this.props=a;this.context=b;this.refs=n;this.updater=e||z}A.prototype.isReactComponent={};A.prototype.setState=function(a,b){"object"!==typeof a&&"function"!==typeof a&&null!=a?y("85"):void 0;this.updater.enqueueSetState(this,a,b,"setState")};A.prototype.forceUpdate=function(a){this.updater.enqueueForceUpdate(this,a,"forceUpdate")};
 function B(a,b,e){this.props=a;this.context=b;this.refs=n;this.updater=e||z}function C(){}C.prototype=A.prototype;var D=B.prototype=new C;D.constructor=B;m(D,A.prototype);D.isPureReactComponent=!0;function E(a,b,e){this.props=a;this.context=b;this.refs=n;this.updater=e||z}var F=E.prototype=new C;F.constructor=E;m(F,A.prototype);F.unstable_isAsyncReactComponent=!0;F.render=function(){return this.props.children};var G={current:null},H=Object.prototype.hasOwnProperty,I={key:!0,ref:!0,__self:!0,__source:!0};
@@ -2258,7 +1549,7 @@ isValidElement:K,version:"16.2.0",__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_F
 
 
 /***/ }),
-/* 43 */
+/* 21 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -2279,12 +1570,12 @@ if (process.env.NODE_ENV !== "production") {
   (function() {
 'use strict';
 
-var _assign = __webpack_require__(6);
-var emptyObject = __webpack_require__(8);
-var invariant = __webpack_require__(7);
-var warning = __webpack_require__(9);
-var emptyFunction = __webpack_require__(3);
-var checkPropTypes = __webpack_require__(16);
+var _assign = __webpack_require__(4);
+var emptyObject = __webpack_require__(6);
+var invariant = __webpack_require__(5);
+var warning = __webpack_require__(7);
+var emptyFunction = __webpack_require__(2);
+var checkPropTypes = __webpack_require__(8);
 
 // TODO: this is special because it gets imported during build.
 
@@ -3623,7 +2914,7 @@ module.exports = react;
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 44 */
+/* 22 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -3661,15 +2952,15 @@ if (process.env.NODE_ENV === 'production') {
   // DCE check should happen before ReactDOM bundle executes so that
   // DevTools can report bad minification during injection.
   checkDCE();
-  module.exports = __webpack_require__(45);
+  module.exports = __webpack_require__(23);
 } else {
-  module.exports = __webpack_require__(48);
+  module.exports = __webpack_require__(26);
 }
 
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 45 */
+/* 23 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -3685,7 +2976,7 @@ if (process.env.NODE_ENV === 'production') {
 /*
  Modernizr 3.0.0pre (Custom Build) | MIT
 */
-var aa=__webpack_require__(0),l=__webpack_require__(22),B=__webpack_require__(6),C=__webpack_require__(3),ba=__webpack_require__(23),da=__webpack_require__(24),ea=__webpack_require__(25),fa=__webpack_require__(26),ia=__webpack_require__(27),D=__webpack_require__(8);
+var aa=__webpack_require__(0),l=__webpack_require__(11),B=__webpack_require__(4),C=__webpack_require__(2),ba=__webpack_require__(12),da=__webpack_require__(13),ea=__webpack_require__(14),fa=__webpack_require__(15),ia=__webpack_require__(16),D=__webpack_require__(6);
 function E(a){for(var b=arguments.length-1,c="Minified React error #"+a+"; visit http://facebook.github.io/react/docs/error-decoder.html?invariant\x3d"+a,d=0;d<b;d++)c+="\x26args[]\x3d"+encodeURIComponent(arguments[d+1]);b=Error(c+" for the full message or use the non-minified dev environment for full errors and additional helpful warnings.");b.name="Invariant Violation";b.framesToPop=1;throw b;}aa?void 0:E("227");
 var oa={children:!0,dangerouslySetInnerHTML:!0,defaultValue:!0,defaultChecked:!0,innerHTML:!0,suppressContentEditableWarning:!0,suppressHydrationWarning:!0,style:!0};function pa(a,b){return(a&b)===b}
 var ta={MUST_USE_PROPERTY:1,HAS_BOOLEAN_VALUE:4,HAS_NUMERIC_VALUE:8,HAS_POSITIVE_NUMERIC_VALUE:24,HAS_OVERLOADED_BOOLEAN_VALUE:32,HAS_STRING_BOOLEAN_VALUE:64,injectDOMPropertyConfig:function(a){var b=ta,c=a.Properties||{},d=a.DOMAttributeNamespaces||{},e=a.DOMAttributeNames||{};a=a.DOMMutationMethods||{};for(var f in c){ua.hasOwnProperty(f)?E("48",f):void 0;var g=f.toLowerCase(),h=c[f];g={attributeName:g,attributeNamespace:null,propertyName:f,mutationMethod:null,mustUseProperty:pa(h,b.MUST_USE_PROPERTY),
@@ -3905,7 +3196,7 @@ Z.injectIntoDevTools({findFiberByHostInstance:pb,bundleType:0,version:"16.2.0",r
 
 
 /***/ }),
-/* 46 */
+/* 24 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -3920,7 +3211,7 @@ Z.injectIntoDevTools({findFiberByHostInstance:pb,bundleType:0,version:"16.2.0",r
  * @typechecks
  */
 
-var isNode = __webpack_require__(47);
+var isNode = __webpack_require__(25);
 
 /**
  * @param {*} object The object to check.
@@ -3933,7 +3224,7 @@ function isTextNode(object) {
 module.exports = isTextNode;
 
 /***/ }),
-/* 47 */
+/* 25 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -3961,7 +3252,7 @@ function isNode(object) {
 module.exports = isNode;
 
 /***/ }),
-/* 48 */
+/* 26 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -3983,20 +3274,20 @@ if (process.env.NODE_ENV !== "production") {
 'use strict';
 
 var React = __webpack_require__(0);
-var invariant = __webpack_require__(7);
-var warning = __webpack_require__(9);
-var ExecutionEnvironment = __webpack_require__(22);
-var _assign = __webpack_require__(6);
-var emptyFunction = __webpack_require__(3);
-var EventListener = __webpack_require__(23);
-var getActiveElement = __webpack_require__(24);
-var shallowEqual = __webpack_require__(25);
-var containsNode = __webpack_require__(26);
-var focusNode = __webpack_require__(27);
-var emptyObject = __webpack_require__(8);
-var checkPropTypes = __webpack_require__(16);
-var hyphenateStyleName = __webpack_require__(49);
-var camelizeStyleName = __webpack_require__(51);
+var invariant = __webpack_require__(5);
+var warning = __webpack_require__(7);
+var ExecutionEnvironment = __webpack_require__(11);
+var _assign = __webpack_require__(4);
+var emptyFunction = __webpack_require__(2);
+var EventListener = __webpack_require__(12);
+var getActiveElement = __webpack_require__(13);
+var shallowEqual = __webpack_require__(14);
+var containsNode = __webpack_require__(15);
+var focusNode = __webpack_require__(16);
+var emptyObject = __webpack_require__(6);
+var checkPropTypes = __webpack_require__(8);
+var hyphenateStyleName = __webpack_require__(27);
+var camelizeStyleName = __webpack_require__(29);
 
 /**
  * WARNING: DO NOT manually require this module.
@@ -19363,85 +18654,7 @@ module.exports = reactDom;
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 49 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
-
-
-
-var hyphenate = __webpack_require__(50);
-
-var msPattern = /^ms-/;
-
-/**
- * Hyphenates a camelcased CSS property name, for example:
- *
- *   > hyphenateStyleName('backgroundColor')
- *   < "background-color"
- *   > hyphenateStyleName('MozTransition')
- *   < "-moz-transition"
- *   > hyphenateStyleName('msTransition')
- *   < "-ms-transition"
- *
- * As Modernizr suggests (http://modernizr.com/docs/#prefixed), an `ms` prefix
- * is converted to `-ms-`.
- *
- * @param {string} string
- * @return {string}
- */
-function hyphenateStyleName(string) {
-  return hyphenate(string).replace(msPattern, '-ms-');
-}
-
-module.exports = hyphenateStyleName;
-
-/***/ }),
-/* 50 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
-
-var _uppercasePattern = /([A-Z])/g;
-
-/**
- * Hyphenates a camelcased string, for example:
- *
- *   > hyphenate('backgroundColor')
- *   < "background-color"
- *
- * For CSS style names, use `hyphenateStyleName` instead which works properly
- * with all vendor prefixes, including `ms`.
- *
- * @param {string} string
- * @return {string}
- */
-function hyphenate(string) {
-  return string.replace(_uppercasePattern, '-$1').toLowerCase();
-}
-
-module.exports = hyphenate;
-
-/***/ }),
-/* 51 */
+/* 27 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -19449,2389 +18662,295 @@ module.exports = hyphenate;
  * Copyright (c) 2013-present, Facebook, Inc.
  *
  * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
-
-
-
-var camelize = __webpack_require__(52);
-
-var msPattern = /^-ms-/;
-
-/**
- * Camelcases a hyphenated CSS property name, for example:
- *
- *   > camelizeStyleName('background-color')
- *   < "backgroundColor"
- *   > camelizeStyleName('-moz-transition')
- *   < "MozTransition"
- *   > camelizeStyleName('-ms-transition')
- *   < "msTransition"
- *
- * As Andi Smith suggests
- * (http://www.andismith.com/blog/2012/02/modernizr-prefixed/), an `-ms` prefix
- * is converted to lowercase `ms`.
- *
- * @param {string} string
- * @return {string}
- */
-function camelizeStyleName(string) {
-  return camelize(string.replace(msPattern, 'ms-'));
-}
-
-module.exports = camelizeStyleName;
-
-/***/ }),
-/* 52 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @typechecks
- */
-
-var _hyphenPattern = /-(.)/g;
-
-/**
- * Camelcases a hyphenated string, for example:
- *
- *   > camelize('background-color')
- *   < "backgroundColor"
- *
- * @param {string} string
- * @return {string}
- */
-function camelize(string) {
-  return string.replace(_hyphenPattern, function (_, character) {
-    return character.toUpperCase();
-  });
-}
-
-module.exports = camelize;
-
-/***/ }),
-/* 53 */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-    value: true
-});
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _react = __webpack_require__(0);
-
-var _react2 = _interopRequireDefault(_react);
-
-var _reactCheckboxTree = __webpack_require__(4);
-
-var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
-
-var nodes = [{
-    value: '/app',
-    label: 'app',
-    children: [{
-        value: '/app/Http',
-        label: 'Http',
-        children: [{
-            value: '/app/Http/Controllers',
-            label: 'Controllers',
-            children: [{
-                value: '/app/Http/Controllers/WelcomeController.js',
-                label: 'WelcomeController.js'
-            }]
-        }, {
-            value: '/app/Http/routes.js',
-            label: 'routes.js'
-        }]
-    }, {
-        value: '/app/Providers',
-        label: 'Providers',
-        children: [{
-            value: '/app/Http/Providers/EventServiceProvider.js',
-            label: 'EventServiceProvider.js'
-        }]
-    }]
-}, {
-    value: '/config',
-    label: 'config',
-    children: [{
-        value: '/config/app.js',
-        label: 'app.js'
-    }, {
-        value: '/config/database.js',
-        label: 'database.js'
-    }]
-}, {
-    value: '/public',
-    label: 'public',
-    children: [{
-        value: '/public/assets/',
-        label: 'assets',
-        children: [{
-            value: '/public/assets/style.css',
-            label: 'style.css'
-        }]
-    }, {
-        value: '/public/index.html',
-        label: 'index.html'
-    }]
-}, {
-    value: '/.env',
-    label: '.env'
-}, {
-    value: '/.gitignore',
-    label: '.gitignore'
-}, {
-    value: '/README.md',
-    label: 'README.md'
-}];
-
-var BasicExample = function (_React$Component) {
-    _inherits(BasicExample, _React$Component);
-
-    function BasicExample() {
-        _classCallCheck(this, BasicExample);
-
-        var _this = _possibleConstructorReturn(this, (BasicExample.__proto__ || Object.getPrototypeOf(BasicExample)).call(this));
-
-        _this.state = {
-            checked: ['/app/Http/Controllers/WelcomeController.js', '/app/Http/routes.js', '/public/assets/style.css', '/public/index.html', '/.gitignore'],
-            expanded: ['/app']
-        };
-
-        _this.onCheck = _this.onCheck.bind(_this);
-        _this.onExpand = _this.onExpand.bind(_this);
-        return _this;
-    }
-
-    _createClass(BasicExample, [{
-        key: 'onCheck',
-        value: function onCheck(checked) {
-            this.setState({ checked: checked });
-        }
-    }, {
-        key: 'onExpand',
-        value: function onExpand(expanded) {
-            this.setState({ expanded: expanded });
-        }
-    }, {
-        key: 'render',
-        value: function render() {
-            var _state = this.state,
-                checked = _state.checked,
-                expanded = _state.expanded;
-
-
-            return _react2.default.createElement(_reactCheckboxTree2.default, {
-                checked: checked,
-                expanded: expanded,
-                nodes: nodes,
-                onCheck: this.onCheck,
-                onExpand: this.onExpand
-            });
-        }
-    }]);
-
-    return BasicExample;
-}(_react2.default.Component);
-
-exports.default = BasicExample;
-
-/***/ }),
-/* 54 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseIsEqual = __webpack_require__(55);
-
-/**
- * Performs a deep comparison between two values to determine if they are
- * equivalent.
- *
- * **Note:** This method supports comparing arrays, array buffers, booleans,
- * date objects, error objects, maps, numbers, `Object` objects, regexes,
- * sets, strings, symbols, and typed arrays. `Object` objects are compared
- * by their own, not inherited, enumerable properties. Functions and DOM
- * nodes are compared by strict equality, i.e. `===`.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- * @example
- *
- * var object = { 'a': 1 };
- * var other = { 'a': 1 };
- *
- * _.isEqual(object, other);
- * // => true
- *
- * object === other;
- * // => false
- */
-function isEqual(value, other) {
-  return baseIsEqual(value, other);
-}
-
-module.exports = isEqual;
-
-
-/***/ }),
-/* 55 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseIsEqualDeep = __webpack_require__(56),
-    isObjectLike = __webpack_require__(15);
-
-/**
- * The base implementation of `_.isEqual` which supports partial comparisons
- * and tracks traversed objects.
- *
- * @private
- * @param {*} value The value to compare.
- * @param {*} other The other value to compare.
- * @param {boolean} bitmask The bitmask flags.
- *  1 - Unordered comparison
- *  2 - Partial comparison
- * @param {Function} [customizer] The function to customize comparisons.
- * @param {Object} [stack] Tracks traversed `value` and `other` objects.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- */
-function baseIsEqual(value, other, bitmask, customizer, stack) {
-  if (value === other) {
-    return true;
-  }
-  if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
-    return value !== value && other !== other;
-  }
-  return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
-}
-
-module.exports = baseIsEqual;
-
-
-/***/ }),
-/* 56 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Stack = __webpack_require__(57),
-    equalArrays = __webpack_require__(35),
-    equalByTag = __webpack_require__(92),
-    equalObjects = __webpack_require__(96),
-    getTag = __webpack_require__(118),
-    isArray = __webpack_require__(20),
-    isBuffer = __webpack_require__(36),
-    isTypedArray = __webpack_require__(38);
-
-/** Used to compose bitmasks for value comparisons. */
-var COMPARE_PARTIAL_FLAG = 1;
-
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]',
-    arrayTag = '[object Array]',
-    objectTag = '[object Object]';
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * A specialized version of `baseIsEqual` for arrays and objects which performs
- * deep comparisons and tracks traversed objects enabling objects with circular
- * references to be compared.
- *
- * @private
- * @param {Object} object The object to compare.
- * @param {Object} other The other object to compare.
- * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
- * @param {Function} customizer The function to customize comparisons.
- * @param {Function} equalFunc The function to determine equivalents of values.
- * @param {Object} [stack] Tracks traversed `object` and `other` objects.
- * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
- */
-function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
-  var objIsArr = isArray(object),
-      othIsArr = isArray(other),
-      objTag = objIsArr ? arrayTag : getTag(object),
-      othTag = othIsArr ? arrayTag : getTag(other);
-
-  objTag = objTag == argsTag ? objectTag : objTag;
-  othTag = othTag == argsTag ? objectTag : othTag;
-
-  var objIsObj = objTag == objectTag,
-      othIsObj = othTag == objectTag,
-      isSameTag = objTag == othTag;
-
-  if (isSameTag && isBuffer(object)) {
-    if (!isBuffer(other)) {
-      return false;
-    }
-    objIsArr = true;
-    objIsObj = false;
-  }
-  if (isSameTag && !objIsObj) {
-    stack || (stack = new Stack);
-    return (objIsArr || isTypedArray(object))
-      ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
-      : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
-  }
-  if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
-    var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
-        othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
-
-    if (objIsWrapped || othIsWrapped) {
-      var objUnwrapped = objIsWrapped ? object.value() : object,
-          othUnwrapped = othIsWrapped ? other.value() : other;
-
-      stack || (stack = new Stack);
-      return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
-    }
-  }
-  if (!isSameTag) {
-    return false;
-  }
-  stack || (stack = new Stack);
-  return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
-}
-
-module.exports = baseIsEqualDeep;
-
-
-/***/ }),
-/* 57 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var ListCache = __webpack_require__(10),
-    stackClear = __webpack_require__(63),
-    stackDelete = __webpack_require__(64),
-    stackGet = __webpack_require__(65),
-    stackHas = __webpack_require__(66),
-    stackSet = __webpack_require__(67);
-
-/**
- * Creates a stack cache object to store key-value pairs.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function Stack(entries) {
-  var data = this.__data__ = new ListCache(entries);
-  this.size = data.size;
-}
-
-// Add methods to `Stack`.
-Stack.prototype.clear = stackClear;
-Stack.prototype['delete'] = stackDelete;
-Stack.prototype.get = stackGet;
-Stack.prototype.has = stackHas;
-Stack.prototype.set = stackSet;
-
-module.exports = Stack;
-
-
-/***/ }),
-/* 58 */
-/***/ (function(module, exports) {
-
-/**
- * Removes all key-value entries from the list cache.
- *
- * @private
- * @name clear
- * @memberOf ListCache
- */
-function listCacheClear() {
-  this.__data__ = [];
-  this.size = 0;
-}
-
-module.exports = listCacheClear;
-
-
-/***/ }),
-/* 59 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var assocIndexOf = __webpack_require__(11);
-
-/** Used for built-in method references. */
-var arrayProto = Array.prototype;
-
-/** Built-in value references. */
-var splice = arrayProto.splice;
-
-/**
- * Removes `key` and its value from the list cache.
- *
- * @private
- * @name delete
- * @memberOf ListCache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function listCacheDelete(key) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  if (index < 0) {
-    return false;
-  }
-  var lastIndex = data.length - 1;
-  if (index == lastIndex) {
-    data.pop();
-  } else {
-    splice.call(data, index, 1);
-  }
-  --this.size;
-  return true;
-}
-
-module.exports = listCacheDelete;
-
-
-/***/ }),
-/* 60 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var assocIndexOf = __webpack_require__(11);
-
-/**
- * Gets the list cache value for `key`.
- *
- * @private
- * @name get
- * @memberOf ListCache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function listCacheGet(key) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  return index < 0 ? undefined : data[index][1];
-}
-
-module.exports = listCacheGet;
-
-
-/***/ }),
-/* 61 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var assocIndexOf = __webpack_require__(11);
-
-/**
- * Checks if a list cache value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf ListCache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function listCacheHas(key) {
-  return assocIndexOf(this.__data__, key) > -1;
-}
-
-module.exports = listCacheHas;
-
-
-/***/ }),
-/* 62 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var assocIndexOf = __webpack_require__(11);
-
-/**
- * Sets the list cache `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf ListCache
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the list cache instance.
- */
-function listCacheSet(key, value) {
-  var data = this.__data__,
-      index = assocIndexOf(data, key);
-
-  if (index < 0) {
-    ++this.size;
-    data.push([key, value]);
-  } else {
-    data[index][1] = value;
-  }
-  return this;
-}
-
-module.exports = listCacheSet;
-
-
-/***/ }),
-/* 63 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var ListCache = __webpack_require__(10);
-
-/**
- * Removes all key-value entries from the stack.
- *
- * @private
- * @name clear
- * @memberOf Stack
- */
-function stackClear() {
-  this.__data__ = new ListCache;
-  this.size = 0;
-}
-
-module.exports = stackClear;
-
-
-/***/ }),
-/* 64 */
-/***/ (function(module, exports) {
-
-/**
- * Removes `key` and its value from the stack.
- *
- * @private
- * @name delete
- * @memberOf Stack
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function stackDelete(key) {
-  var data = this.__data__,
-      result = data['delete'](key);
-
-  this.size = data.size;
-  return result;
-}
-
-module.exports = stackDelete;
-
-
-/***/ }),
-/* 65 */
-/***/ (function(module, exports) {
-
-/**
- * Gets the stack value for `key`.
- *
- * @private
- * @name get
- * @memberOf Stack
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function stackGet(key) {
-  return this.__data__.get(key);
-}
-
-module.exports = stackGet;
-
-
-/***/ }),
-/* 66 */
-/***/ (function(module, exports) {
-
-/**
- * Checks if a stack value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf Stack
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function stackHas(key) {
-  return this.__data__.has(key);
-}
-
-module.exports = stackHas;
-
-
-/***/ }),
-/* 67 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var ListCache = __webpack_require__(10),
-    Map = __webpack_require__(18),
-    MapCache = __webpack_require__(34);
-
-/** Used as the size to enable large array optimizations. */
-var LARGE_ARRAY_SIZE = 200;
-
-/**
- * Sets the stack `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf Stack
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the stack cache instance.
- */
-function stackSet(key, value) {
-  var data = this.__data__;
-  if (data instanceof ListCache) {
-    var pairs = data.__data__;
-    if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
-      pairs.push([key, value]);
-      this.size = ++data.size;
-      return this;
-    }
-    data = this.__data__ = new MapCache(pairs);
-  }
-  data.set(key, value);
-  this.size = data.size;
-  return this;
-}
-
-module.exports = stackSet;
-
-
-/***/ }),
-/* 68 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var isFunction = __webpack_require__(30),
-    isMasked = __webpack_require__(72),
-    isObject = __webpack_require__(32),
-    toSource = __webpack_require__(33);
-
-/**
- * Used to match `RegExp`
- * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
- */
-var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
-
-/** Used to detect host constructors (Safari). */
-var reIsHostCtor = /^\[object .+?Constructor\]$/;
-
-/** Used for built-in method references. */
-var funcProto = Function.prototype,
-    objectProto = Object.prototype;
-
-/** Used to resolve the decompiled source of functions. */
-var funcToString = funcProto.toString;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/** Used to detect if a method is native. */
-var reIsNative = RegExp('^' +
-  funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
-  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
-);
-
-/**
- * The base implementation of `_.isNative` without bad shim checks.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a native function,
- *  else `false`.
- */
-function baseIsNative(value) {
-  if (!isObject(value) || isMasked(value)) {
-    return false;
-  }
-  var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
-  return pattern.test(toSource(value));
-}
-
-module.exports = baseIsNative;
-
-
-/***/ }),
-/* 69 */
-/***/ (function(module, exports) {
-
-var g;
-
-// This works in non-strict mode
-g = (function() {
-	return this;
-})();
-
-try {
-	// This works if eval is allowed (see CSP)
-	g = g || Function("return this")() || (1,eval)("this");
-} catch(e) {
-	// This works if the window reference is available
-	if(typeof window === "object")
-		g = window;
-}
-
-// g can still be undefined, but nothing to do about it...
-// We return undefined, instead of nothing here, so it's
-// easier to handle this case. if(!global) { ...}
-
-module.exports = g;
-
-
-/***/ }),
-/* 70 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Symbol = __webpack_require__(19);
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var nativeObjectToString = objectProto.toString;
-
-/** Built-in value references. */
-var symToStringTag = Symbol ? Symbol.toStringTag : undefined;
-
-/**
- * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the raw `toStringTag`.
- */
-function getRawTag(value) {
-  var isOwn = hasOwnProperty.call(value, symToStringTag),
-      tag = value[symToStringTag];
-
-  try {
-    value[symToStringTag] = undefined;
-    var unmasked = true;
-  } catch (e) {}
-
-  var result = nativeObjectToString.call(value);
-  if (unmasked) {
-    if (isOwn) {
-      value[symToStringTag] = tag;
-    } else {
-      delete value[symToStringTag];
-    }
-  }
-  return result;
-}
-
-module.exports = getRawTag;
-
-
-/***/ }),
-/* 71 */
-/***/ (function(module, exports) {
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/**
- * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
- * of values.
- */
-var nativeObjectToString = objectProto.toString;
-
-/**
- * Converts `value` to a string using `Object.prototype.toString`.
- *
- * @private
- * @param {*} value The value to convert.
- * @returns {string} Returns the converted string.
- */
-function objectToString(value) {
-  return nativeObjectToString.call(value);
-}
-
-module.exports = objectToString;
-
-
-/***/ }),
-/* 72 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var coreJsData = __webpack_require__(73);
-
-/** Used to detect methods masquerading as native. */
-var maskSrcKey = (function() {
-  var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
-  return uid ? ('Symbol(src)_1.' + uid) : '';
-}());
-
-/**
- * Checks if `func` has its source masked.
- *
- * @private
- * @param {Function} func The function to check.
- * @returns {boolean} Returns `true` if `func` is masked, else `false`.
- */
-function isMasked(func) {
-  return !!maskSrcKey && (maskSrcKey in func);
-}
-
-module.exports = isMasked;
-
-
-/***/ }),
-/* 73 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var root = __webpack_require__(2);
-
-/** Used to detect overreaching core-js shims. */
-var coreJsData = root['__core-js_shared__'];
-
-module.exports = coreJsData;
-
-
-/***/ }),
-/* 74 */
-/***/ (function(module, exports) {
-
-/**
- * Gets the value at `key` of `object`.
- *
- * @private
- * @param {Object} [object] The object to query.
- * @param {string} key The key of the property to get.
- * @returns {*} Returns the property value.
- */
-function getValue(object, key) {
-  return object == null ? undefined : object[key];
-}
-
-module.exports = getValue;
-
-
-/***/ }),
-/* 75 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Hash = __webpack_require__(76),
-    ListCache = __webpack_require__(10),
-    Map = __webpack_require__(18);
-
-/**
- * Removes all key-value entries from the map.
- *
- * @private
- * @name clear
- * @memberOf MapCache
- */
-function mapCacheClear() {
-  this.size = 0;
-  this.__data__ = {
-    'hash': new Hash,
-    'map': new (Map || ListCache),
-    'string': new Hash
-  };
-}
-
-module.exports = mapCacheClear;
-
-
-/***/ }),
-/* 76 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var hashClear = __webpack_require__(77),
-    hashDelete = __webpack_require__(78),
-    hashGet = __webpack_require__(79),
-    hashHas = __webpack_require__(80),
-    hashSet = __webpack_require__(81);
-
-/**
- * Creates a hash object.
- *
- * @private
- * @constructor
- * @param {Array} [entries] The key-value pairs to cache.
- */
-function Hash(entries) {
-  var index = -1,
-      length = entries == null ? 0 : entries.length;
-
-  this.clear();
-  while (++index < length) {
-    var entry = entries[index];
-    this.set(entry[0], entry[1]);
-  }
-}
-
-// Add methods to `Hash`.
-Hash.prototype.clear = hashClear;
-Hash.prototype['delete'] = hashDelete;
-Hash.prototype.get = hashGet;
-Hash.prototype.has = hashHas;
-Hash.prototype.set = hashSet;
-
-module.exports = Hash;
-
-
-/***/ }),
-/* 77 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var nativeCreate = __webpack_require__(13);
-
-/**
- * Removes all key-value entries from the hash.
- *
- * @private
- * @name clear
- * @memberOf Hash
- */
-function hashClear() {
-  this.__data__ = nativeCreate ? nativeCreate(null) : {};
-  this.size = 0;
-}
-
-module.exports = hashClear;
-
-
-/***/ }),
-/* 78 */
-/***/ (function(module, exports) {
-
-/**
- * Removes `key` and its value from the hash.
- *
- * @private
- * @name delete
- * @memberOf Hash
- * @param {Object} hash The hash to modify.
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function hashDelete(key) {
-  var result = this.has(key) && delete this.__data__[key];
-  this.size -= result ? 1 : 0;
-  return result;
-}
-
-module.exports = hashDelete;
-
-
-/***/ }),
-/* 79 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var nativeCreate = __webpack_require__(13);
-
-/** Used to stand-in for `undefined` hash values. */
-var HASH_UNDEFINED = '__lodash_hash_undefined__';
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * Gets the hash value for `key`.
- *
- * @private
- * @name get
- * @memberOf Hash
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function hashGet(key) {
-  var data = this.__data__;
-  if (nativeCreate) {
-    var result = data[key];
-    return result === HASH_UNDEFINED ? undefined : result;
-  }
-  return hasOwnProperty.call(data, key) ? data[key] : undefined;
-}
-
-module.exports = hashGet;
-
-
-/***/ }),
-/* 80 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var nativeCreate = __webpack_require__(13);
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * Checks if a hash value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf Hash
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function hashHas(key) {
-  var data = this.__data__;
-  return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
-}
-
-module.exports = hashHas;
-
-
-/***/ }),
-/* 81 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var nativeCreate = __webpack_require__(13);
-
-/** Used to stand-in for `undefined` hash values. */
-var HASH_UNDEFINED = '__lodash_hash_undefined__';
-
-/**
- * Sets the hash `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf Hash
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the hash instance.
- */
-function hashSet(key, value) {
-  var data = this.__data__;
-  this.size += this.has(key) ? 0 : 1;
-  data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
-  return this;
-}
-
-module.exports = hashSet;
-
-
-/***/ }),
-/* 82 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var getMapData = __webpack_require__(14);
-
-/**
- * Removes `key` and its value from the map.
- *
- * @private
- * @name delete
- * @memberOf MapCache
- * @param {string} key The key of the value to remove.
- * @returns {boolean} Returns `true` if the entry was removed, else `false`.
- */
-function mapCacheDelete(key) {
-  var result = getMapData(this, key)['delete'](key);
-  this.size -= result ? 1 : 0;
-  return result;
-}
-
-module.exports = mapCacheDelete;
-
-
-/***/ }),
-/* 83 */
-/***/ (function(module, exports) {
-
-/**
- * Checks if `value` is suitable for use as unique object key.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
- */
-function isKeyable(value) {
-  var type = typeof value;
-  return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
-    ? (value !== '__proto__')
-    : (value === null);
-}
-
-module.exports = isKeyable;
-
-
-/***/ }),
-/* 84 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var getMapData = __webpack_require__(14);
-
-/**
- * Gets the map value for `key`.
- *
- * @private
- * @name get
- * @memberOf MapCache
- * @param {string} key The key of the value to get.
- * @returns {*} Returns the entry value.
- */
-function mapCacheGet(key) {
-  return getMapData(this, key).get(key);
-}
-
-module.exports = mapCacheGet;
-
-
-/***/ }),
-/* 85 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var getMapData = __webpack_require__(14);
-
-/**
- * Checks if a map value for `key` exists.
- *
- * @private
- * @name has
- * @memberOf MapCache
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function mapCacheHas(key) {
-  return getMapData(this, key).has(key);
-}
-
-module.exports = mapCacheHas;
-
-
-/***/ }),
-/* 86 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var getMapData = __webpack_require__(14);
-
-/**
- * Sets the map `key` to `value`.
- *
- * @private
- * @name set
- * @memberOf MapCache
- * @param {string} key The key of the value to set.
- * @param {*} value The value to set.
- * @returns {Object} Returns the map cache instance.
- */
-function mapCacheSet(key, value) {
-  var data = getMapData(this, key),
-      size = data.size;
-
-  data.set(key, value);
-  this.size += data.size == size ? 0 : 1;
-  return this;
-}
-
-module.exports = mapCacheSet;
-
-
-/***/ }),
-/* 87 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var MapCache = __webpack_require__(34),
-    setCacheAdd = __webpack_require__(88),
-    setCacheHas = __webpack_require__(89);
-
-/**
- *
- * Creates an array cache object to store unique values.
- *
- * @private
- * @constructor
- * @param {Array} [values] The values to cache.
- */
-function SetCache(values) {
-  var index = -1,
-      length = values == null ? 0 : values.length;
-
-  this.__data__ = new MapCache;
-  while (++index < length) {
-    this.add(values[index]);
-  }
-}
-
-// Add methods to `SetCache`.
-SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
-SetCache.prototype.has = setCacheHas;
-
-module.exports = SetCache;
-
-
-/***/ }),
-/* 88 */
-/***/ (function(module, exports) {
-
-/** Used to stand-in for `undefined` hash values. */
-var HASH_UNDEFINED = '__lodash_hash_undefined__';
-
-/**
- * Adds `value` to the array cache.
- *
- * @private
- * @name add
- * @memberOf SetCache
- * @alias push
- * @param {*} value The value to cache.
- * @returns {Object} Returns the cache instance.
- */
-function setCacheAdd(value) {
-  this.__data__.set(value, HASH_UNDEFINED);
-  return this;
-}
-
-module.exports = setCacheAdd;
-
-
-/***/ }),
-/* 89 */
-/***/ (function(module, exports) {
-
-/**
- * Checks if `value` is in the array cache.
- *
- * @private
- * @name has
- * @memberOf SetCache
- * @param {*} value The value to search for.
- * @returns {number} Returns `true` if `value` is found, else `false`.
- */
-function setCacheHas(value) {
-  return this.__data__.has(value);
-}
-
-module.exports = setCacheHas;
-
-
-/***/ }),
-/* 90 */
-/***/ (function(module, exports) {
-
-/**
- * A specialized version of `_.some` for arrays without support for iteratee
- * shorthands.
- *
- * @private
- * @param {Array} [array] The array to iterate over.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {boolean} Returns `true` if any element passes the predicate check,
- *  else `false`.
- */
-function arraySome(array, predicate) {
-  var index = -1,
-      length = array == null ? 0 : array.length;
-
-  while (++index < length) {
-    if (predicate(array[index], index, array)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-module.exports = arraySome;
-
-
-/***/ }),
-/* 91 */
-/***/ (function(module, exports) {
-
-/**
- * Checks if a `cache` value for `key` exists.
- *
- * @private
- * @param {Object} cache The cache to query.
- * @param {string} key The key of the entry to check.
- * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
- */
-function cacheHas(cache, key) {
-  return cache.has(key);
-}
-
-module.exports = cacheHas;
-
-
-/***/ }),
-/* 92 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var Symbol = __webpack_require__(19),
-    Uint8Array = __webpack_require__(93),
-    eq = __webpack_require__(29),
-    equalArrays = __webpack_require__(35),
-    mapToArray = __webpack_require__(94),
-    setToArray = __webpack_require__(95);
-
-/** Used to compose bitmasks for value comparisons. */
-var COMPARE_PARTIAL_FLAG = 1,
-    COMPARE_UNORDERED_FLAG = 2;
-
-/** `Object#toString` result references. */
-var boolTag = '[object Boolean]',
-    dateTag = '[object Date]',
-    errorTag = '[object Error]',
-    mapTag = '[object Map]',
-    numberTag = '[object Number]',
-    regexpTag = '[object RegExp]',
-    setTag = '[object Set]',
-    stringTag = '[object String]',
-    symbolTag = '[object Symbol]';
-
-var arrayBufferTag = '[object ArrayBuffer]',
-    dataViewTag = '[object DataView]';
-
-/** Used to convert symbols to primitives and strings. */
-var symbolProto = Symbol ? Symbol.prototype : undefined,
-    symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
-
-/**
- * A specialized version of `baseIsEqualDeep` for comparing objects of
- * the same `toStringTag`.
- *
- * **Note:** This function only supports comparing values with tags of
- * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
- *
- * @private
- * @param {Object} object The object to compare.
- * @param {Object} other The other object to compare.
- * @param {string} tag The `toStringTag` of the objects to compare.
- * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
- * @param {Function} customizer The function to customize comparisons.
- * @param {Function} equalFunc The function to determine equivalents of values.
- * @param {Object} stack Tracks traversed `object` and `other` objects.
- * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
- */
-function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
-  switch (tag) {
-    case dataViewTag:
-      if ((object.byteLength != other.byteLength) ||
-          (object.byteOffset != other.byteOffset)) {
-        return false;
-      }
-      object = object.buffer;
-      other = other.buffer;
-
-    case arrayBufferTag:
-      if ((object.byteLength != other.byteLength) ||
-          !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
-        return false;
-      }
-      return true;
-
-    case boolTag:
-    case dateTag:
-    case numberTag:
-      // Coerce booleans to `1` or `0` and dates to milliseconds.
-      // Invalid dates are coerced to `NaN`.
-      return eq(+object, +other);
-
-    case errorTag:
-      return object.name == other.name && object.message == other.message;
-
-    case regexpTag:
-    case stringTag:
-      // Coerce regexes to strings and treat strings, primitives and objects,
-      // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
-      // for more details.
-      return object == (other + '');
-
-    case mapTag:
-      var convert = mapToArray;
-
-    case setTag:
-      var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
-      convert || (convert = setToArray);
-
-      if (object.size != other.size && !isPartial) {
-        return false;
-      }
-      // Assume cyclic values are equal.
-      var stacked = stack.get(object);
-      if (stacked) {
-        return stacked == other;
-      }
-      bitmask |= COMPARE_UNORDERED_FLAG;
-
-      // Recursively compare objects (susceptible to call stack limits).
-      stack.set(object, other);
-      var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
-      stack['delete'](object);
-      return result;
-
-    case symbolTag:
-      if (symbolValueOf) {
-        return symbolValueOf.call(object) == symbolValueOf.call(other);
-      }
-  }
-  return false;
-}
-
-module.exports = equalByTag;
-
-
-/***/ }),
-/* 93 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var root = __webpack_require__(2);
-
-/** Built-in value references. */
-var Uint8Array = root.Uint8Array;
-
-module.exports = Uint8Array;
-
-
-/***/ }),
-/* 94 */
-/***/ (function(module, exports) {
-
-/**
- * Converts `map` to its key-value pairs.
- *
- * @private
- * @param {Object} map The map to convert.
- * @returns {Array} Returns the key-value pairs.
- */
-function mapToArray(map) {
-  var index = -1,
-      result = Array(map.size);
-
-  map.forEach(function(value, key) {
-    result[++index] = [key, value];
-  });
-  return result;
-}
-
-module.exports = mapToArray;
-
-
-/***/ }),
-/* 95 */
-/***/ (function(module, exports) {
-
-/**
- * Converts `set` to an array of its values.
- *
- * @private
- * @param {Object} set The set to convert.
- * @returns {Array} Returns the values.
- */
-function setToArray(set) {
-  var index = -1,
-      result = Array(set.size);
-
-  set.forEach(function(value) {
-    result[++index] = value;
-  });
-  return result;
-}
-
-module.exports = setToArray;
-
-
-/***/ }),
-/* 96 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var getAllKeys = __webpack_require__(97);
-
-/** Used to compose bitmasks for value comparisons. */
-var COMPARE_PARTIAL_FLAG = 1;
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * A specialized version of `baseIsEqualDeep` for objects with support for
- * partial deep comparisons.
- *
- * @private
- * @param {Object} object The object to compare.
- * @param {Object} other The other object to compare.
- * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
- * @param {Function} customizer The function to customize comparisons.
- * @param {Function} equalFunc The function to determine equivalents of values.
- * @param {Object} stack Tracks traversed `object` and `other` objects.
- * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
- */
-function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
-  var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
-      objProps = getAllKeys(object),
-      objLength = objProps.length,
-      othProps = getAllKeys(other),
-      othLength = othProps.length;
-
-  if (objLength != othLength && !isPartial) {
-    return false;
-  }
-  var index = objLength;
-  while (index--) {
-    var key = objProps[index];
-    if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
-      return false;
-    }
-  }
-  // Assume cyclic values are equal.
-  var stacked = stack.get(object);
-  if (stacked && stack.get(other)) {
-    return stacked == other;
-  }
-  var result = true;
-  stack.set(object, other);
-  stack.set(other, object);
-
-  var skipCtor = isPartial;
-  while (++index < objLength) {
-    key = objProps[index];
-    var objValue = object[key],
-        othValue = other[key];
-
-    if (customizer) {
-      var compared = isPartial
-        ? customizer(othValue, objValue, key, other, object, stack)
-        : customizer(objValue, othValue, key, object, other, stack);
-    }
-    // Recursively compare objects (susceptible to call stack limits).
-    if (!(compared === undefined
-          ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
-          : compared
-        )) {
-      result = false;
-      break;
-    }
-    skipCtor || (skipCtor = key == 'constructor');
-  }
-  if (result && !skipCtor) {
-    var objCtor = object.constructor,
-        othCtor = other.constructor;
-
-    // Non `Object` object instances with different constructors are not equal.
-    if (objCtor != othCtor &&
-        ('constructor' in object && 'constructor' in other) &&
-        !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
-          typeof othCtor == 'function' && othCtor instanceof othCtor)) {
-      result = false;
-    }
-  }
-  stack['delete'](object);
-  stack['delete'](other);
-  return result;
-}
-
-module.exports = equalObjects;
-
-
-/***/ }),
-/* 97 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseGetAllKeys = __webpack_require__(98),
-    getSymbols = __webpack_require__(100),
-    keys = __webpack_require__(103);
-
-/**
- * Creates an array of own enumerable property names and symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names and symbols.
- */
-function getAllKeys(object) {
-  return baseGetAllKeys(object, keys, getSymbols);
-}
-
-module.exports = getAllKeys;
-
-
-/***/ }),
-/* 98 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var arrayPush = __webpack_require__(99),
-    isArray = __webpack_require__(20);
-
-/**
- * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
- * `keysFunc` and `symbolsFunc` to get the enumerable property names and
- * symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @param {Function} keysFunc The function to get the keys of `object`.
- * @param {Function} symbolsFunc The function to get the symbols of `object`.
- * @returns {Array} Returns the array of property names and symbols.
- */
-function baseGetAllKeys(object, keysFunc, symbolsFunc) {
-  var result = keysFunc(object);
-  return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
-}
-
-module.exports = baseGetAllKeys;
-
-
-/***/ }),
-/* 99 */
-/***/ (function(module, exports) {
-
-/**
- * Appends the elements of `values` to `array`.
- *
- * @private
- * @param {Array} array The array to modify.
- * @param {Array} values The values to append.
- * @returns {Array} Returns `array`.
- */
-function arrayPush(array, values) {
-  var index = -1,
-      length = values.length,
-      offset = array.length;
-
-  while (++index < length) {
-    array[offset + index] = values[index];
-  }
-  return array;
-}
-
-module.exports = arrayPush;
-
-
-/***/ }),
-/* 100 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var arrayFilter = __webpack_require__(101),
-    stubArray = __webpack_require__(102);
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Built-in value references. */
-var propertyIsEnumerable = objectProto.propertyIsEnumerable;
-
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeGetSymbols = Object.getOwnPropertySymbols;
-
-/**
- * Creates an array of the own enumerable symbols of `object`.
- *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of symbols.
- */
-var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
-  if (object == null) {
-    return [];
-  }
-  object = Object(object);
-  return arrayFilter(nativeGetSymbols(object), function(symbol) {
-    return propertyIsEnumerable.call(object, symbol);
-  });
-};
-
-module.exports = getSymbols;
-
-
-/***/ }),
-/* 101 */
-/***/ (function(module, exports) {
-
-/**
- * A specialized version of `_.filter` for arrays without support for
- * iteratee shorthands.
- *
- * @private
- * @param {Array} [array] The array to iterate over.
- * @param {Function} predicate The function invoked per iteration.
- * @returns {Array} Returns the new filtered array.
- */
-function arrayFilter(array, predicate) {
-  var index = -1,
-      length = array == null ? 0 : array.length,
-      resIndex = 0,
-      result = [];
-
-  while (++index < length) {
-    var value = array[index];
-    if (predicate(value, index, array)) {
-      result[resIndex++] = value;
-    }
-  }
-  return result;
-}
-
-module.exports = arrayFilter;
-
-
-/***/ }),
-/* 102 */
-/***/ (function(module, exports) {
-
-/**
- * This method returns a new empty array.
- *
- * @static
- * @memberOf _
- * @since 4.13.0
- * @category Util
- * @returns {Array} Returns the new empty array.
- * @example
- *
- * var arrays = _.times(2, _.stubArray);
- *
- * console.log(arrays);
- * // => [[], []]
- *
- * console.log(arrays[0] === arrays[1]);
- * // => false
- */
-function stubArray() {
-  return [];
-}
-
-module.exports = stubArray;
-
-
-/***/ }),
-/* 103 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var arrayLikeKeys = __webpack_require__(104),
-    baseKeys = __webpack_require__(113),
-    isArrayLike = __webpack_require__(117);
-
-/**
- * Creates an array of the own enumerable property names of `object`.
- *
- * **Note:** Non-object values are coerced to objects. See the
- * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
- * for more details.
- *
- * @static
- * @since 0.1.0
- * @memberOf _
- * @category Object
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
- * @example
- *
- * function Foo() {
- *   this.a = 1;
- *   this.b = 2;
- * }
- *
- * Foo.prototype.c = 3;
- *
- * _.keys(new Foo);
- * // => ['a', 'b'] (iteration order is not guaranteed)
- *
- * _.keys('hi');
- * // => ['0', '1']
- */
-function keys(object) {
-  return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
-}
-
-module.exports = keys;
-
-
-/***/ }),
-/* 104 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseTimes = __webpack_require__(105),
-    isArguments = __webpack_require__(106),
-    isArray = __webpack_require__(20),
-    isBuffer = __webpack_require__(36),
-    isIndex = __webpack_require__(109),
-    isTypedArray = __webpack_require__(38);
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/**
- * Creates an array of the enumerable property names of the array-like `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @param {boolean} inherited Specify returning inherited property names.
- * @returns {Array} Returns the array of property names.
- */
-function arrayLikeKeys(value, inherited) {
-  var isArr = isArray(value),
-      isArg = !isArr && isArguments(value),
-      isBuff = !isArr && !isArg && isBuffer(value),
-      isType = !isArr && !isArg && !isBuff && isTypedArray(value),
-      skipIndexes = isArr || isArg || isBuff || isType,
-      result = skipIndexes ? baseTimes(value.length, String) : [],
-      length = result.length;
-
-  for (var key in value) {
-    if ((inherited || hasOwnProperty.call(value, key)) &&
-        !(skipIndexes && (
-           // Safari 9 has enumerable `arguments.length` in strict mode.
-           key == 'length' ||
-           // Node.js 0.10 has enumerable non-index properties on buffers.
-           (isBuff && (key == 'offset' || key == 'parent')) ||
-           // PhantomJS 2 has enumerable non-index properties on typed arrays.
-           (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
-           // Skip index properties.
-           isIndex(key, length)
-        ))) {
-      result.push(key);
-    }
-  }
-  return result;
-}
-
-module.exports = arrayLikeKeys;
-
-
-/***/ }),
-/* 105 */
-/***/ (function(module, exports) {
-
-/**
- * The base implementation of `_.times` without support for iteratee shorthands
- * or max array length checks.
- *
- * @private
- * @param {number} n The number of times to invoke `iteratee`.
- * @param {Function} iteratee The function invoked per iteration.
- * @returns {Array} Returns the array of results.
- */
-function baseTimes(n, iteratee) {
-  var index = -1,
-      result = Array(n);
-
-  while (++index < n) {
-    result[index] = iteratee(index);
-  }
-  return result;
-}
-
-module.exports = baseTimes;
-
-
-/***/ }),
-/* 106 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseIsArguments = __webpack_require__(107),
-    isObjectLike = __webpack_require__(15);
-
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
-
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
-
-/** Built-in value references. */
-var propertyIsEnumerable = objectProto.propertyIsEnumerable;
-
-/**
- * Checks if `value` is likely an `arguments` object.
- *
- * @static
- * @memberOf _
- * @since 0.1.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an `arguments` object,
- *  else `false`.
- * @example
- *
- * _.isArguments(function() { return arguments; }());
- * // => true
- *
- * _.isArguments([1, 2, 3]);
- * // => false
- */
-var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
-  return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
-    !propertyIsEnumerable.call(value, 'callee');
-};
-
-module.exports = isArguments;
-
-
-/***/ }),
-/* 107 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseGetTag = __webpack_require__(12),
-    isObjectLike = __webpack_require__(15);
-
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]';
-
-/**
- * The base implementation of `_.isArguments`.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is an `arguments` object,
- */
-function baseIsArguments(value) {
-  return isObjectLike(value) && baseGetTag(value) == argsTag;
-}
-
-module.exports = baseIsArguments;
-
-
-/***/ }),
-/* 108 */
-/***/ (function(module, exports) {
-
-/**
- * This method returns `false`.
- *
- * @static
- * @memberOf _
- * @since 4.13.0
- * @category Util
- * @returns {boolean} Returns `false`.
- * @example
- *
- * _.times(2, _.stubFalse);
- * // => [false, false]
- */
-function stubFalse() {
-  return false;
-}
-
-module.exports = stubFalse;
-
-
-/***/ }),
-/* 109 */
-/***/ (function(module, exports) {
-
-/** Used as references for various `Number` constants. */
-var MAX_SAFE_INTEGER = 9007199254740991;
-
-/** Used to detect unsigned integer values. */
-var reIsUint = /^(?:0|[1-9]\d*)$/;
-
-/**
- * Checks if `value` is a valid array-like index.
- *
- * @private
- * @param {*} value The value to check.
- * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
- * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
- */
-function isIndex(value, length) {
-  length = length == null ? MAX_SAFE_INTEGER : length;
-  return !!length &&
-    (typeof value == 'number' || reIsUint.test(value)) &&
-    (value > -1 && value % 1 == 0 && value < length);
-}
-
-module.exports = isIndex;
-
-
-/***/ }),
-/* 110 */
-/***/ (function(module, exports, __webpack_require__) {
-
-var baseGetTag = __webpack_require__(12),
-    isLength = __webpack_require__(39),
-    isObjectLike = __webpack_require__(15);
-
-/** `Object#toString` result references. */
-var argsTag = '[object Arguments]',
-    arrayTag = '[object Array]',
-    boolTag = '[object Boolean]',
-    dateTag = '[object Date]',
-    errorTag = '[object Error]',
-    funcTag = '[object Function]',
-    mapTag = '[object Map]',
-    numberTag = '[object Number]',
-    objectTag = '[object Object]',
-    regexpTag = '[object RegExp]',
-    setTag = '[object Set]',
-    stringTag = '[object String]',
-    weakMapTag = '[object WeakMap]';
-
-var arrayBufferTag = '[object ArrayBuffer]',
-    dataViewTag = '[object DataView]',
-    float32Tag = '[object Float32Array]',
-    float64Tag = '[object Float64Array]',
-    int8Tag = '[object Int8Array]',
-    int16Tag = '[object Int16Array]',
-    int32Tag = '[object Int32Array]',
-    uint8Tag = '[object Uint8Array]',
-    uint8ClampedTag = '[object Uint8ClampedArray]',
-    uint16Tag = '[object Uint16Array]',
-    uint32Tag = '[object Uint32Array]';
-
-/** Used to identify `toStringTag` values of typed arrays. */
-var typedArrayTags = {};
-typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
-typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
-typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
-typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
-typedArrayTags[uint32Tag] = true;
-typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
-typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
-typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
-typedArrayTags[errorTag] = typedArrayTags[funcTag] =
-typedArrayTags[mapTag] = typedArrayTags[numberTag] =
-typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
-typedArrayTags[setTag] = typedArrayTags[stringTag] =
-typedArrayTags[weakMapTag] = false;
-
-/**
- * The base implementation of `_.isTypedArray` without Node.js optimizations.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
- */
-function baseIsTypedArray(value) {
-  return isObjectLike(value) &&
-    isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
-}
-
-module.exports = baseIsTypedArray;
-
-
-/***/ }),
-/* 111 */
-/***/ (function(module, exports) {
-
-/**
- * The base implementation of `_.unary` without support for storing metadata.
- *
- * @private
- * @param {Function} func The function to cap arguments for.
- * @returns {Function} Returns the new capped function.
- */
-function baseUnary(func) {
-  return function(value) {
-    return func(value);
-  };
-}
-
-module.exports = baseUnary;
-
-
-/***/ }),
-/* 112 */
-/***/ (function(module, exports, __webpack_require__) {
-
-/* WEBPACK VAR INJECTION */(function(module) {var freeGlobal = __webpack_require__(31);
-
-/** Detect free variable `exports`. */
-var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
-
-/** Detect free variable `module`. */
-var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
-
-/** Detect the popular CommonJS extension `module.exports`. */
-var moduleExports = freeModule && freeModule.exports === freeExports;
-
-/** Detect free variable `process` from Node.js. */
-var freeProcess = moduleExports && freeGlobal.process;
-
-/** Used to access faster Node.js helpers. */
-var nodeUtil = (function() {
-  try {
-    return freeProcess && freeProcess.binding && freeProcess.binding('util');
-  } catch (e) {}
-}());
-
-module.exports = nodeUtil;
-
-/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(37)(module)))
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
+ */
 
-/***/ }),
-/* 113 */
-/***/ (function(module, exports, __webpack_require__) {
 
-var isPrototype = __webpack_require__(114),
-    nativeKeys = __webpack_require__(115);
 
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
+var hyphenate = __webpack_require__(28);
 
-/** Used to check objects for own properties. */
-var hasOwnProperty = objectProto.hasOwnProperty;
+var msPattern = /^ms-/;
 
 /**
- * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
+ * Hyphenates a camelcased CSS property name, for example:
  *
- * @private
- * @param {Object} object The object to query.
- * @returns {Array} Returns the array of property names.
+ *   > hyphenateStyleName('backgroundColor')
+ *   < "background-color"
+ *   > hyphenateStyleName('MozTransition')
+ *   < "-moz-transition"
+ *   > hyphenateStyleName('msTransition')
+ *   < "-ms-transition"
+ *
+ * As Modernizr suggests (http://modernizr.com/docs/#prefixed), an `ms` prefix
+ * is converted to `-ms-`.
+ *
+ * @param {string} string
+ * @return {string}
  */
-function baseKeys(object) {
-  if (!isPrototype(object)) {
-    return nativeKeys(object);
-  }
-  var result = [];
-  for (var key in Object(object)) {
-    if (hasOwnProperty.call(object, key) && key != 'constructor') {
-      result.push(key);
-    }
-  }
-  return result;
+function hyphenateStyleName(string) {
+  return hyphenate(string).replace(msPattern, '-ms-');
 }
 
-module.exports = baseKeys;
-
+module.exports = hyphenateStyleName;
 
 /***/ }),
-/* 114 */
-/***/ (function(module, exports) {
+/* 28 */
+/***/ (function(module, exports, __webpack_require__) {
+
+"use strict";
 
-/** Used for built-in method references. */
-var objectProto = Object.prototype;
 
 /**
- * Checks if `value` is likely a prototype object.
+ * Copyright (c) 2013-present, Facebook, Inc.
  *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
  */
-function isPrototype(value) {
-  var Ctor = value && value.constructor,
-      proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
 
-  return value === proto;
-}
+var _uppercasePattern = /([A-Z])/g;
 
-module.exports = isPrototype;
+/**
+ * Hyphenates a camelcased string, for example:
+ *
+ *   > hyphenate('backgroundColor')
+ *   < "background-color"
+ *
+ * For CSS style names, use `hyphenateStyleName` instead which works properly
+ * with all vendor prefixes, including `ms`.
+ *
+ * @param {string} string
+ * @return {string}
+ */
+function hyphenate(string) {
+  return string.replace(_uppercasePattern, '-$1').toLowerCase();
+}
 
+module.exports = hyphenate;
 
 /***/ }),
-/* 115 */
+/* 29 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var overArg = __webpack_require__(116);
+"use strict";
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @typechecks
+ */
 
-/* Built-in method references for those with the same name as other `lodash` methods. */
-var nativeKeys = overArg(Object.keys, Object);
 
-module.exports = nativeKeys;
 
+var camelize = __webpack_require__(30);
 
-/***/ }),
-/* 116 */
-/***/ (function(module, exports) {
+var msPattern = /^-ms-/;
 
 /**
- * Creates a unary function that invokes `func` with its argument transformed.
+ * Camelcases a hyphenated CSS property name, for example:
  *
- * @private
- * @param {Function} func The function to wrap.
- * @param {Function} transform The argument transform.
- * @returns {Function} Returns the new function.
+ *   > camelizeStyleName('background-color')
+ *   < "backgroundColor"
+ *   > camelizeStyleName('-moz-transition')
+ *   < "MozTransition"
+ *   > camelizeStyleName('-ms-transition')
+ *   < "msTransition"
+ *
+ * As Andi Smith suggests
+ * (http://www.andismith.com/blog/2012/02/modernizr-prefixed/), an `-ms` prefix
+ * is converted to lowercase `ms`.
+ *
+ * @param {string} string
+ * @return {string}
  */
-function overArg(func, transform) {
-  return function(arg) {
-    return func(transform(arg));
-  };
+function camelizeStyleName(string) {
+  return camelize(string.replace(msPattern, 'ms-'));
 }
 
-module.exports = overArg;
-
+module.exports = camelizeStyleName;
 
 /***/ }),
-/* 117 */
+/* 30 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var isFunction = __webpack_require__(30),
-    isLength = __webpack_require__(39);
+"use strict";
+
 
 /**
- * Checks if `value` is array-like. A value is considered array-like if it's
- * not a function and has a `value.length` that's an integer greater than or
- * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
- *
- * @static
- * @memberOf _
- * @since 4.0.0
- * @category Lang
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
- * @example
+ * Copyright (c) 2013-present, Facebook, Inc.
  *
- * _.isArrayLike([1, 2, 3]);
- * // => true
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
  *
- * _.isArrayLike(document.body.children);
- * // => true
+ * @typechecks
+ */
+
+var _hyphenPattern = /-(.)/g;
+
+/**
+ * Camelcases a hyphenated string, for example:
  *
- * _.isArrayLike('abc');
- * // => true
+ *   > camelize('background-color')
+ *   < "backgroundColor"
  *
- * _.isArrayLike(_.noop);
- * // => false
+ * @param {string} string
+ * @return {string}
  */
-function isArrayLike(value) {
-  return value != null && isLength(value.length) && !isFunction(value);
+function camelize(string) {
+  return string.replace(_hyphenPattern, function (_, character) {
+    return character.toUpperCase();
+  });
 }
 
-module.exports = isArrayLike;
-
+module.exports = camelize;
 
 /***/ }),
-/* 118 */
+/* 31 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var DataView = __webpack_require__(119),
-    Map = __webpack_require__(18),
-    Promise = __webpack_require__(120),
-    Set = __webpack_require__(121),
-    WeakMap = __webpack_require__(122),
-    baseGetTag = __webpack_require__(12),
-    toSource = __webpack_require__(33);
-
-/** `Object#toString` result references. */
-var mapTag = '[object Map]',
-    objectTag = '[object Object]',
-    promiseTag = '[object Promise]',
-    setTag = '[object Set]',
-    weakMapTag = '[object WeakMap]';
-
-var dataViewTag = '[object DataView]';
-
-/** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = toSource(DataView),
-    mapCtorString = toSource(Map),
-    promiseCtorString = toSource(Promise),
-    setCtorString = toSource(Set),
-    weakMapCtorString = toSource(WeakMap);
-
-/**
- * Gets the `toStringTag` of `value`.
- *
- * @private
- * @param {*} value The value to query.
- * @returns {string} Returns the `toStringTag`.
- */
-var getTag = baseGetTag;
-
-// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
-if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
-    (Map && getTag(new Map) != mapTag) ||
-    (Promise && getTag(Promise.resolve()) != promiseTag) ||
-    (Set && getTag(new Set) != setTag) ||
-    (WeakMap && getTag(new WeakMap) != weakMapTag)) {
-  getTag = function(value) {
-    var result = baseGetTag(value),
-        Ctor = result == objectTag ? value.constructor : undefined,
-        ctorString = Ctor ? toSource(Ctor) : '';
-
-    if (ctorString) {
-      switch (ctorString) {
-        case dataViewCtorString: return dataViewTag;
-        case mapCtorString: return mapTag;
-        case promiseCtorString: return promiseTag;
-        case setCtorString: return setTag;
-        case weakMapCtorString: return weakMapTag;
-      }
-    }
-    return result;
-  };
-}
+"use strict";
 
-module.exports = getTag;
 
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
 
-/***/ }),
-/* 119 */
-/***/ (function(module, exports, __webpack_require__) {
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var getNative = __webpack_require__(5),
-    root = __webpack_require__(2);
+var _react = __webpack_require__(0);
 
-/* Built-in method references that are verified to be native. */
-var DataView = getNative(root, 'DataView');
+var _react2 = _interopRequireDefault(_react);
 
-module.exports = DataView;
+var _reactCheckboxTree = __webpack_require__(3);
 
+var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
-/***/ }),
-/* 120 */
-/***/ (function(module, exports, __webpack_require__) {
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-var getNative = __webpack_require__(5),
-    root = __webpack_require__(2);
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
-/* Built-in method references that are verified to be native. */
-var Promise = getNative(root, 'Promise');
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
 
-module.exports = Promise;
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
+var nodes = [{
+    value: '/app',
+    label: 'app',
+    children: [{
+        value: '/app/Http',
+        label: 'Http',
+        children: [{
+            value: '/app/Http/Controllers',
+            label: 'Controllers',
+            children: [{
+                value: '/app/Http/Controllers/WelcomeController.js',
+                label: 'WelcomeController.js'
+            }]
+        }, {
+            value: '/app/Http/routes.js',
+            label: 'routes.js'
+        }]
+    }, {
+        value: '/app/Providers',
+        label: 'Providers',
+        children: [{
+            value: '/app/Http/Providers/EventServiceProvider.js',
+            label: 'EventServiceProvider.js'
+        }]
+    }]
+}, {
+    value: '/config',
+    label: 'config',
+    children: [{
+        value: '/config/app.js',
+        label: 'app.js'
+    }, {
+        value: '/config/database.js',
+        label: 'database.js'
+    }]
+}, {
+    value: '/public',
+    label: 'public',
+    children: [{
+        value: '/public/assets/',
+        label: 'assets',
+        children: [{
+            value: '/public/assets/style.css',
+            label: 'style.css'
+        }]
+    }, {
+        value: '/public/index.html',
+        label: 'index.html'
+    }]
+}, {
+    value: '/.env',
+    label: '.env'
+}, {
+    value: '/.gitignore',
+    label: '.gitignore'
+}, {
+    value: '/README.md',
+    label: 'README.md'
+}];
 
-/***/ }),
-/* 121 */
-/***/ (function(module, exports, __webpack_require__) {
+var BasicExample = function (_React$Component) {
+    _inherits(BasicExample, _React$Component);
 
-var getNative = __webpack_require__(5),
-    root = __webpack_require__(2);
+    function BasicExample() {
+        _classCallCheck(this, BasicExample);
 
-/* Built-in method references that are verified to be native. */
-var Set = getNative(root, 'Set');
+        var _this = _possibleConstructorReturn(this, (BasicExample.__proto__ || Object.getPrototypeOf(BasicExample)).call(this));
 
-module.exports = Set;
+        _this.state = {
+            checked: ['/app/Http/Controllers/WelcomeController.js', '/app/Http/routes.js', '/public/assets/style.css', '/public/index.html', '/.gitignore'],
+            expanded: ['/app']
+        };
 
+        _this.onCheck = _this.onCheck.bind(_this);
+        _this.onExpand = _this.onExpand.bind(_this);
+        return _this;
+    }
 
-/***/ }),
-/* 122 */
-/***/ (function(module, exports, __webpack_require__) {
+    _createClass(BasicExample, [{
+        key: 'onCheck',
+        value: function onCheck(checked) {
+            this.setState({ checked: checked });
+        }
+    }, {
+        key: 'onExpand',
+        value: function onExpand(expanded) {
+            this.setState({ expanded: expanded });
+        }
+    }, {
+        key: 'render',
+        value: function render() {
+            var _state = this.state,
+                checked = _state.checked,
+                expanded = _state.expanded;
 
-var getNative = __webpack_require__(5),
-    root = __webpack_require__(2);
 
-/* Built-in method references that are verified to be native. */
-var WeakMap = getNative(root, 'WeakMap');
+            return _react2.default.createElement(_reactCheckboxTree2.default, {
+                checked: checked,
+                expanded: expanded,
+                nodes: nodes,
+                onCheck: this.onCheck,
+                onExpand: this.onExpand
+            });
+        }
+    }]);
 
-module.exports = WeakMap;
+    return BasicExample;
+}(_react2.default.Component);
 
+exports.default = BasicExample;
 
 /***/ }),
-/* 123 */
+/* 32 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -21844,13 +18963,13 @@ module.exports = WeakMap;
 
 
 
-var emptyFunction = __webpack_require__(3);
-var invariant = __webpack_require__(7);
-var warning = __webpack_require__(9);
-var assign = __webpack_require__(6);
+var emptyFunction = __webpack_require__(2);
+var invariant = __webpack_require__(5);
+var warning = __webpack_require__(7);
+var assign = __webpack_require__(4);
 
-var ReactPropTypesSecret = __webpack_require__(17);
-var checkPropTypes = __webpack_require__(16);
+var ReactPropTypesSecret = __webpack_require__(9);
+var checkPropTypes = __webpack_require__(8);
 
 module.exports = function(isValidElement, throwOnDirectAccess) {
   /* global Symbol */
@@ -22381,7 +19500,7 @@ module.exports = function(isValidElement, throwOnDirectAccess) {
 /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(1)))
 
 /***/ }),
-/* 124 */
+/* 33 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -22394,9 +19513,9 @@ module.exports = function(isValidElement, throwOnDirectAccess) {
 
 
 
-var emptyFunction = __webpack_require__(3);
-var invariant = __webpack_require__(7);
-var ReactPropTypesSecret = __webpack_require__(17);
+var emptyFunction = __webpack_require__(2);
+var invariant = __webpack_require__(5);
+var ReactPropTypesSecret = __webpack_require__(9);
 
 module.exports = function() {
   function shim(props, propName, componentName, location, propFullName, secret) {
@@ -22446,10 +19565,10 @@ module.exports = function() {
 
 
 /***/ }),
-/* 125 */
+/* 34 */
 /***/ (function(module, exports, __webpack_require__) {
 
-var random = __webpack_require__(126)
+var random = __webpack_require__(35)
 
 var url = '_~0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
 
@@ -22481,7 +19600,7 @@ module.exports = function (size) {
 
 
 /***/ }),
-/* 126 */
+/* 35 */
 /***/ (function(module, exports) {
 
 var crypto = window.crypto || window.msCrypto
@@ -22492,7 +19611,7 @@ module.exports = function (bytes) {
 
 
 /***/ }),
-/* 127 */
+/* 36 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -22504,11 +19623,11 @@ Object.defineProperty(exports, "__esModule", {
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _classnames = __webpack_require__(28);
+var _classnames = __webpack_require__(17);
 
 var _classnames2 = _interopRequireDefault(_classnames);
 
-var _propTypes = __webpack_require__(21);
+var _propTypes = __webpack_require__(10);
 
 var _propTypes2 = _interopRequireDefault(_propTypes);
 
@@ -22516,7 +19635,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _nodeShape = __webpack_require__(40);
+var _nodeShape = __webpack_require__(18);
 
 var _nodeShape2 = _interopRequireDefault(_nodeShape);
 
@@ -22739,7 +19858,7 @@ TreeNode.defaultProps = {
 exports.default = TreeNode;
 
 /***/ }),
-/* 128 */
+/* 37 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -22755,7 +19874,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(4);
+var _reactCheckboxTree = __webpack_require__(3);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -22849,7 +19968,7 @@ var CustomIconsExamples = function (_React$Component) {
 exports.default = CustomIconsExamples;
 
 /***/ }),
-/* 129 */
+/* 38 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -22865,7 +19984,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(4);
+var _reactCheckboxTree = __webpack_require__(3);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -22990,7 +20109,7 @@ var DisabledExample = function (_React$Component) {
 exports.default = DisabledExample;
 
 /***/ }),
-/* 130 */
+/* 39 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -23006,7 +20125,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(4);
+var _reactCheckboxTree = __webpack_require__(3);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -23132,7 +20251,7 @@ var NoCascadeExample = function (_React$Component) {
 exports.default = NoCascadeExample;
 
 /***/ }),
-/* 131 */
+/* 40 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -23148,7 +20267,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(4);
+var _reactCheckboxTree = __webpack_require__(3);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -23273,7 +20392,7 @@ var PessimisticToggleExample = function (_React$Component) {
 exports.default = PessimisticToggleExample;
 
 /***/ }),
-/* 132 */
+/* 41 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -23289,7 +20408,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(4);
+var _reactCheckboxTree = __webpack_require__(3);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
@@ -23378,7 +20497,7 @@ var LargeDataExample = function (_React$Component) {
 exports.default = LargeDataExample;
 
 /***/ }),
-/* 133 */
+/* 42 */
 /***/ (function(module, exports, __webpack_require__) {
 
 "use strict";
@@ -23394,7 +20513,7 @@ var _react = __webpack_require__(0);
 
 var _react2 = _interopRequireDefault(_react);
 
-var _reactCheckboxTree = __webpack_require__(4);
+var _reactCheckboxTree = __webpack_require__(3);
 
 var _reactCheckboxTree2 = _interopRequireDefault(_reactCheckboxTree);
 
diff --git a/src/js/CheckboxTree.js b/src/js/CheckboxTree.js
index ac038430..86efad67 100644
--- a/src/js/CheckboxTree.js
+++ b/src/js/CheckboxTree.js
@@ -1,5 +1,4 @@
 import classNames from 'classnames';
-import isEqual from 'lodash/isEqual';
 import PropTypes from 'prop-types';
 import React from 'react';
 import nanoid from 'nanoid';
@@ -55,8 +54,8 @@ class CheckboxTree extends React.Component {
     }
 
     componentWillReceiveProps({ nodes, checked, expanded }) {
-            this.flattenNodes(nodes);
-            this.unserializeLists({ checked, expanded });
+        this.flattenNodes(nodes);
+        this.unserializeLists({ checked, expanded });
     }
 
     onCheck(node) {
diff --git a/src/scss/react-checkbox-tree.scss b/src/scss/react-checkbox-tree.scss
index 6df0ba2e..1d63c4ef 100644
--- a/src/scss/react-checkbox-tree.scss
+++ b/src/scss/react-checkbox-tree.scss
@@ -143,4 +143,3 @@ $rct-label-active: rgba($rct-icon-color, .15) !default;
 .rct-icon-parent-close::before {
   content: "\f114";
 }
-