From 9f6b4255c20bbfdb28e963e4d4ef4c8813cb911e Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Fri, 28 Mar 2025 23:50:26 +0900
Subject: [PATCH 01/10] fix: resolve doc path if outer comments exist on module
 and replace from cfg_attr bit to doc_place bit

Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
---
 crates/hir-expand/src/attrs.rs                | 47 +++++++--------
 crates/hir/src/attrs.rs                       | 17 +++++-
 crates/ide/src/doc_links/tests.rs             | 57 +++++++++++++++++++
 .../highlight_module_docs_inline.html         |  4 +-
 crates/ide/src/syntax_highlighting/tests.rs   |  8 +--
 5 files changed, 99 insertions(+), 34 deletions(-)

diff --git a/crates/hir-expand/src/attrs.rs b/crates/hir-expand/src/attrs.rs
index bb17eb062760..b350a6f8ac08 100644
--- a/crates/hir-expand/src/attrs.rs
+++ b/crates/hir-expand/src/attrs.rs
@@ -129,9 +129,8 @@ impl RawAttrs {
                     .cloned()
                     .chain(b.slice.iter().map(|it| {
                         let mut it = it.clone();
-                        it.id.id = (it.id.ast_index() as u32 + last_ast_index)
-                            | ((it.id.cfg_attr_index().unwrap_or(0) as u32)
-                                << AttrId::AST_INDEX_BITS);
+                        let id = it.id.ast_index() as u32 + last_ast_index;
+                        it.id = AttrId::new(id as usize, it.id.is_inner_attr());
                         it
                     }))
                     .collect::<Vec<_>>();
@@ -175,25 +174,21 @@ pub struct AttrId {
 // FIXME: This only handles a single level of cfg_attr nesting
 // that is `#[cfg_attr(all(), cfg_attr(all(), cfg(any())))]` breaks again
 impl AttrId {
-    const CFG_ATTR_BITS: usize = 7;
     const AST_INDEX_MASK: usize = 0x00FF_FFFF;
-    const AST_INDEX_BITS: usize = Self::AST_INDEX_MASK.count_ones() as usize;
-    const CFG_ATTR_SET_BITS: u32 = 1 << 31;
+    const INNER_ATTR_BIT: usize = 1 << 31;
 
-    pub fn ast_index(&self) -> usize {
-        self.id as usize & Self::AST_INDEX_MASK
+    pub fn new(id: usize, is_inner: bool) -> Self {
+        let id = id & Self::AST_INDEX_MASK;
+        let id = if is_inner { id | Self::INNER_ATTR_BIT } else { id };
+        Self { id: id as u32 }
     }
 
-    pub fn cfg_attr_index(&self) -> Option<usize> {
-        if self.id & Self::CFG_ATTR_SET_BITS == 0 {
-            None
-        } else {
-            Some(self.id as usize >> Self::AST_INDEX_BITS)
-        }
+    pub fn ast_index(&self) -> usize {
+        self.id as usize & Self::AST_INDEX_MASK
     }
 
-    pub fn with_cfg_attr(self, idx: usize) -> AttrId {
-        AttrId { id: self.id | ((idx as u32) << Self::AST_INDEX_BITS) | Self::CFG_ATTR_SET_BITS }
+    pub fn is_inner_attr(&self) -> bool {
+        (self.id as usize) & Self::INNER_ATTR_BIT != 0
     }
 }
 
@@ -333,10 +328,7 @@ impl Attr {
             None => return smallvec![self.clone()],
         };
         let index = self.id;
-        let attrs = parts
-            .enumerate()
-            .take(1 << AttrId::CFG_ATTR_BITS)
-            .filter_map(|(idx, attr)| Attr::from_tt(db, attr, index.with_cfg_attr(idx)));
+        let attrs = parts.filter_map(|attr| Attr::from_tt(db, attr, index));
 
         let cfg = TopSubtree::from_token_trees(subtree.top_subtree().delimiter, cfg);
         let cfg = CfgExpr::parse(&cfg);
@@ -467,13 +459,18 @@ fn unescape(s: &str) -> Option<Cow<'_, str>> {
 pub fn collect_attrs(
     owner: &dyn ast::HasAttrs,
 ) -> impl Iterator<Item = (AttrId, Either<ast::Attr, ast::Comment>)> {
-    let inner_attrs = inner_attributes(owner.syntax()).into_iter().flatten();
-    let outer_attrs =
-        ast::AttrDocCommentIter::from_syntax_node(owner.syntax()).filter(|el| match el {
+    let inner_attrs =
+        inner_attributes(owner.syntax()).into_iter().flatten().map(|attr| (attr, true));
+    let outer_attrs = ast::AttrDocCommentIter::from_syntax_node(owner.syntax())
+        .filter(|el| match el {
             Either::Left(attr) => attr.kind().is_outer(),
             Either::Right(comment) => comment.is_outer(),
-        });
-    outer_attrs.chain(inner_attrs).enumerate().map(|(id, attr)| (AttrId { id: id as u32 }, attr))
+        })
+        .map(|attr| (attr, false));
+    outer_attrs
+        .chain(inner_attrs)
+        .enumerate()
+        .map(|(id, (attr, is_inner))| (AttrId::new(id, is_inner), attr))
 }
 
 fn inner_attributes(
diff --git a/crates/hir/src/attrs.rs b/crates/hir/src/attrs.rs
index 2d1727a6e904..38ba8d6a3199 100644
--- a/crates/hir/src/attrs.rs
+++ b/crates/hir/src/attrs.rs
@@ -105,11 +105,13 @@ impl HasAttrs for crate::Crate {
 /// Resolves the item `link` points to in the scope of `def`.
 pub fn resolve_doc_path_on(
     db: &dyn HirDatabase,
-    def: impl HasAttrs,
+    def: impl HasAttrs + Copy,
     link: &str,
     ns: Option<Namespace>,
 ) -> Option<DocLinkDef> {
-    resolve_doc_path_on_(db, link, def.attr_id(), ns)
+    let is_inner =
+        def.attrs(db).by_key(&intern::sym::doc).attrs().all(|attr| attr.id.is_inner_attr());
+    resolve_doc_path_on_(db, link, def.attr_id(), ns, is_inner)
 }
 
 fn resolve_doc_path_on_(
@@ -117,9 +119,18 @@ fn resolve_doc_path_on_(
     link: &str,
     attr_id: AttrDefId,
     ns: Option<Namespace>,
+    is_inner: bool,
 ) -> Option<DocLinkDef> {
     let resolver = match attr_id {
-        AttrDefId::ModuleId(it) => it.resolver(db),
+        AttrDefId::ModuleId(it) => {
+            if is_inner {
+                it.resolver(db)
+            } else if let Some(parent) = Module::from(it).parent(db) {
+                parent.id.resolver(db)
+            } else {
+                it.resolver(db)
+            }
+        }
         AttrDefId::FieldId(it) => it.parent.resolver(db),
         AttrDefId::AdtId(it) => it.resolver(db),
         AttrDefId::FunctionId(it) => it.resolver(db),
diff --git a/crates/ide/src/doc_links/tests.rs b/crates/ide/src/doc_links/tests.rs
index 91785be8d8ba..6d56b98e57c8 100644
--- a/crates/ide/src/doc_links/tests.rs
+++ b/crates/ide/src/doc_links/tests.rs
@@ -575,6 +575,40 @@ struct S$0(i32);
     );
 }
 
+#[test]
+fn doc_links_module() {
+    check_doc_links(
+        r#"
+/// [`M`]
+/// [`M::f`]
+mod M$0 {
+  //^ M
+  #![doc = "inner_item[`M::S`]"]
+
+    pub fn f() {}
+         //^ M::f
+    pub struct S;
+             //^ M::S
+}
+"#,
+    );
+
+    check_doc_links(
+        r#"
+mod M$0 {
+  //^ super::M
+    //! [`super::M`]
+    //! [`super::M::f`]
+    //! [`super::M::S`]
+    pub fn f() {}
+         //^ super::M::f
+    pub struct S;
+             //^ super::M::S
+}
+"#,
+    );
+}
+
 #[test]
 fn rewrite_html_root_url() {
     check_rewrite(
@@ -690,6 +724,29 @@ fn rewrite_intra_doc_link_with_anchor() {
     );
 }
 
+#[test]
+fn rewrite_module() {
+    check_rewrite(
+        r#"
+//- /main.rs crate:foo
+/// [Foo]
+pub mod $0Foo{
+};
+"#,
+        expect![[r#"[Foo](https://docs.rs/foo/*/foo/Foo/index.html)"#]],
+    );
+
+    check_rewrite(
+        r#"
+//- /main.rs crate:foo
+pub mod $0Foo{
+    //! [super::Foo]
+};
+"#,
+        expect![[r#"[super::Foo](https://docs.rs/foo/*/foo/Foo/index.html)"#]],
+    );
+}
+
 #[test]
 fn rewrite_intra_doc_link_to_associated_item() {
     check_rewrite(
diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html b/crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html
index 9996a871580f..75d96b422c10 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html
@@ -40,9 +40,9 @@
 .invalid_escape_sequence { color: #FC5555; text-decoration: wavy underline; }
 .unresolved_reference    { color: #FC5555; text-decoration: wavy underline; }
 </style>
-<pre><code><span class="comment documentation">//! </span><span class="struct documentation injected intra_doc_link">[Struct]</span>
+<pre><code><span class="comment documentation">//! </span><span class="struct documentation injected intra_doc_link">[foo::Struct]</span>
 <span class="comment documentation">//! This is an intra doc injection test for modules</span>
-<span class="comment documentation">//! </span><span class="struct documentation injected intra_doc_link">[Struct]</span>
+<span class="comment documentation">//! </span><span class="struct documentation injected intra_doc_link">[foo::Struct]</span>
 <span class="comment documentation">//! This is an intra doc injection test for modules</span>
 
 <span class="keyword">pub</span> <span class="keyword">struct</span> <span class="struct declaration public">Struct</span><span class="semicolon">;</span>
diff --git a/crates/ide/src/syntax_highlighting/tests.rs b/crates/ide/src/syntax_highlighting/tests.rs
index dd359326c61d..a8d953094667 100644
--- a/crates/ide/src/syntax_highlighting/tests.rs
+++ b/crates/ide/src/syntax_highlighting/tests.rs
@@ -1072,9 +1072,9 @@ fn test_mod_hl_injection() {
     check_highlighting(
         r##"
 //- /foo.rs
-//! [Struct]
+//! [foo::Struct]
 //! This is an intra doc injection test for modules
-//! [Struct]
+//! [foo::Struct]
 //! This is an intra doc injection test for modules
 
 pub struct Struct;
@@ -1097,9 +1097,9 @@ mod foo;
 /// This is an intra doc injection test for modules
 mod foo;
 //- /foo.rs
-//! [Struct]
+//! [foo::Struct]
 //! This is an intra doc injection test for modules
-//! [Struct]
+//! [foo::Struct]
 //! This is an intra doc injection test for modules
 
 pub struct Struct;

From b786f98761c16e278d476aaf1cfaf77a0e144e0f Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Tue, 6 May 2025 16:27:23 +0900
Subject: [PATCH 02/10] Update crates/hir-expand/src/attrs.rs

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
---
 crates/hir-expand/src/attrs.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/hir-expand/src/attrs.rs b/crates/hir-expand/src/attrs.rs
index b350a6f8ac08..9eac5c2c7217 100644
--- a/crates/hir-expand/src/attrs.rs
+++ b/crates/hir-expand/src/attrs.rs
@@ -460,7 +460,7 @@ pub fn collect_attrs(
     owner: &dyn ast::HasAttrs,
 ) -> impl Iterator<Item = (AttrId, Either<ast::Attr, ast::Comment>)> {
     let inner_attrs =
-        inner_attributes(owner.syntax()).into_iter().flatten().map(|attr| (attr, true));
+        inner_attributes(owner.syntax()).into_iter().flatten().zip(iter::repeat(true));
     let outer_attrs = ast::AttrDocCommentIter::from_syntax_node(owner.syntax())
         .filter(|el| match el {
             Either::Left(attr) => attr.kind().is_outer(),

From 7d6956ea576ade95d14c161fa2aae75a81863c85 Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Tue, 6 May 2025 16:27:36 +0900
Subject: [PATCH 03/10] Update crates/hir-expand/src/attrs.rs

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>
---
 crates/hir-expand/src/attrs.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/hir-expand/src/attrs.rs b/crates/hir-expand/src/attrs.rs
index 9eac5c2c7217..5fe95f3043ef 100644
--- a/crates/hir-expand/src/attrs.rs
+++ b/crates/hir-expand/src/attrs.rs
@@ -466,7 +466,7 @@ pub fn collect_attrs(
             Either::Left(attr) => attr.kind().is_outer(),
             Either::Right(comment) => comment.is_outer(),
         })
-        .map(|attr| (attr, false));
+        .zip(iter::repeat(false));
     outer_attrs
         .chain(inner_attrs)
         .enumerate()

From 52b523aabe5ae72113e8aa62e2922a92f0511c75 Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Tue, 6 May 2025 17:08:12 +0900
Subject: [PATCH 04/10] import std::iter::repeat

Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
---
 crates/hir-expand/src/attrs.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crates/hir-expand/src/attrs.rs b/crates/hir-expand/src/attrs.rs
index 5fe95f3043ef..8b9e1c42c1ae 100644
--- a/crates/hir-expand/src/attrs.rs
+++ b/crates/hir-expand/src/attrs.rs
@@ -1,4 +1,5 @@
 //! A higher level attributes based on TokenTree, with also some shortcuts.
+use std::iter;
 use std::{borrow::Cow, fmt, ops};
 
 use base_db::Crate;

From ab4ba5cd297c10712fff2ab5a59bc8108dcf1e4d Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Tue, 6 May 2025 17:09:28 +0900
Subject: [PATCH 05/10] Remove ast index mask

Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
---
 crates/hir-expand/src/attrs.rs | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/crates/hir-expand/src/attrs.rs b/crates/hir-expand/src/attrs.rs
index 8b9e1c42c1ae..4e519452aa69 100644
--- a/crates/hir-expand/src/attrs.rs
+++ b/crates/hir-expand/src/attrs.rs
@@ -175,21 +175,24 @@ pub struct AttrId {
 // FIXME: This only handles a single level of cfg_attr nesting
 // that is `#[cfg_attr(all(), cfg_attr(all(), cfg(any())))]` breaks again
 impl AttrId {
-    const AST_INDEX_MASK: usize = 0x00FF_FFFF;
-    const INNER_ATTR_BIT: usize = 1 << 31;
+    const INNER_ATTR_SET_BIT: usize = 1 << 31;
 
     pub fn new(id: usize, is_inner: bool) -> Self {
-        let id = id & Self::AST_INDEX_MASK;
-        let id = if is_inner { id | Self::INNER_ATTR_BIT } else { id };
-        Self { id: id as u32 }
+        Self {
+            id: if is_inner {
+                id | Self::INNER_ATTR_SET_BIT
+            } else {
+                id & !Self::INNER_ATTR_SET_BIT
+            } as u32,
+        }
     }
 
     pub fn ast_index(&self) -> usize {
-        self.id as usize & Self::AST_INDEX_MASK
+        self.id as usize & !Self::INNER_ATTR_SET_BIT
     }
 
     pub fn is_inner_attr(&self) -> bool {
-        (self.id as usize) & Self::INNER_ATTR_BIT != 0
+        (self.id as usize) & Self::INNER_ATTR_SET_BIT != 0
     }
 }
 

From 778322eb31b00ce239781cd29b685f681edaac79 Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Wed, 7 May 2025 00:36:17 +0900
Subject: [PATCH 06/10] check module path inner or outer

Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
---
 crates/hir/src/attrs.rs                       |  9 +-
 crates/ide-db/src/defs.rs                     | 63 +++++++-----
 crates/ide-db/src/documentation.rs            | 83 +++++++++++++---
 crates/ide/src/doc_links.rs                   | 96 ++++++++++++-------
 crates/ide/src/doc_links/tests.rs             | 56 +++++------
 crates/ide/src/hover.rs                       |  4 +-
 crates/ide/src/hover/render.rs                | 46 +++++----
 crates/ide/src/syntax_highlighting/inject.rs  | 17 +++-
 .../highlight_module_docs_inline.html         |  4 +-
 crates/ide/src/syntax_highlighting/tests.rs   |  8 +-
 10 files changed, 256 insertions(+), 130 deletions(-)

diff --git a/crates/hir/src/attrs.rs b/crates/hir/src/attrs.rs
index 38ba8d6a3199..b1cf30b98f5b 100644
--- a/crates/hir/src/attrs.rs
+++ b/crates/hir/src/attrs.rs
@@ -108,10 +108,9 @@ pub fn resolve_doc_path_on(
     def: impl HasAttrs + Copy,
     link: &str,
     ns: Option<Namespace>,
+    is_inner_doc: bool,
 ) -> Option<DocLinkDef> {
-    let is_inner =
-        def.attrs(db).by_key(&intern::sym::doc).attrs().all(|attr| attr.id.is_inner_attr());
-    resolve_doc_path_on_(db, link, def.attr_id(), ns, is_inner)
+    resolve_doc_path_on_(db, link, def.attr_id(), ns, is_inner_doc)
 }
 
 fn resolve_doc_path_on_(
@@ -119,11 +118,11 @@ fn resolve_doc_path_on_(
     link: &str,
     attr_id: AttrDefId,
     ns: Option<Namespace>,
-    is_inner: bool,
+    is_inner_doc: bool,
 ) -> Option<DocLinkDef> {
     let resolver = match attr_id {
         AttrDefId::ModuleId(it) => {
-            if is_inner {
+            if is_inner_doc {
                 it.resolver(db)
             } else if let Some(parent) = Module::from(it).parent(db) {
                 parent.id.resolver(db)
diff --git a/crates/ide-db/src/defs.rs b/crates/ide-db/src/defs.rs
index bf4f541ff54c..d5db1c481b69 100644
--- a/crates/ide-db/src/defs.rs
+++ b/crates/ide-db/src/defs.rs
@@ -6,7 +6,7 @@
 // FIXME: this badly needs rename/rewrite (matklad, 2020-02-06).
 
 use crate::RootDatabase;
-use crate::documentation::{Documentation, HasDocs};
+use crate::documentation::{DocsRangeMap, Documentation, HasDocs};
 use crate::famous_defs::FamousDefs;
 use arrayvec::ArrayVec;
 use either::Either;
@@ -21,7 +21,7 @@ use hir::{
 use span::Edition;
 use stdx::{format_to, impl_from};
 use syntax::{
-    SyntaxKind, SyntaxNode, SyntaxToken,
+    SyntaxKind, SyntaxNode, SyntaxToken, TextSize,
     ast::{self, AstNode},
     match_ast,
 };
@@ -210,29 +210,40 @@ impl Definition {
         famous_defs: Option<&FamousDefs<'_, '_>>,
         display_target: DisplayTarget,
     ) -> Option<Documentation> {
+        self.docs_with_rangemap(db, famous_defs, display_target).map(|(docs, _)| docs)
+    }
+
+    pub fn docs_with_rangemap(
+        &self,
+        db: &RootDatabase,
+        famous_defs: Option<&FamousDefs<'_, '_>>,
+        display_target: DisplayTarget,
+    ) -> Option<(Documentation, Option<DocsRangeMap>)> {
         let docs = match self {
-            Definition::Macro(it) => it.docs(db),
-            Definition::Field(it) => it.docs(db),
-            Definition::Module(it) => it.docs(db),
-            Definition::Crate(it) => it.docs(db),
-            Definition::Function(it) => it.docs(db),
-            Definition::Adt(it) => it.docs(db),
-            Definition::Variant(it) => it.docs(db),
-            Definition::Const(it) => it.docs(db),
-            Definition::Static(it) => it.docs(db),
-            Definition::Trait(it) => it.docs(db),
-            Definition::TraitAlias(it) => it.docs(db),
+            Definition::Macro(it) => it.docs_with_rangemap(db),
+            Definition::Field(it) => it.docs_with_rangemap(db),
+            Definition::Module(it) => it.docs_with_rangemap(db),
+            Definition::Crate(it) => it.docs_with_rangemap(db),
+            Definition::Function(it) => it.docs_with_rangemap(db),
+            Definition::Adt(it) => it.docs_with_rangemap(db),
+            Definition::Variant(it) => it.docs_with_rangemap(db),
+            Definition::Const(it) => it.docs_with_rangemap(db),
+            Definition::Static(it) => it.docs_with_rangemap(db),
+            Definition::Trait(it) => it.docs_with_rangemap(db),
+            Definition::TraitAlias(it) => it.docs_with_rangemap(db),
             Definition::TypeAlias(it) => {
-                it.docs(db).or_else(|| {
+                it.docs_with_rangemap(db).or_else(|| {
                     // docs are missing, try to fall back to the docs of the aliased item.
                     let adt = it.ty(db).as_adt()?;
-                    let docs = adt.docs(db)?;
-                    let docs = format!(
-                        "*This is the documentation for* `{}`\n\n{}",
-                        adt.display(db, display_target),
-                        docs.as_str()
+                    let (docs, range_map) = adt.docs_with_rangemap(db)?;
+                    let header_docs = format!(
+                        "*This is the documentation for* `{}`\n\n",
+                        adt.display(db, display_target)
                     );
-                    Some(Documentation::new(docs))
+                    let offset = TextSize::new(header_docs.len() as u32);
+                    let range_map = range_map.shift_docstring_line_range(offset);
+                    let docs = header_docs + docs.as_str();
+                    Some((Documentation::new(docs), range_map))
                 })
             }
             Definition::BuiltinType(it) => {
@@ -241,17 +252,17 @@ impl Definition {
                     let primitive_mod =
                         format!("prim_{}", it.name().display(fd.0.db, display_target.edition));
                     let doc_owner = find_std_module(fd, &primitive_mod, display_target.edition)?;
-                    doc_owner.docs(fd.0.db)
+                    doc_owner.docs_with_rangemap(fd.0.db)
                 })
             }
             Definition::BuiltinLifetime(StaticLifetime) => None,
             Definition::Local(_) => None,
             Definition::SelfType(impl_def) => {
-                impl_def.self_ty(db).as_adt().map(|adt| adt.docs(db))?
+                impl_def.self_ty(db).as_adt().map(|adt| adt.docs_with_rangemap(db))?
             }
             Definition::GenericParam(_) => None,
             Definition::Label(_) => None,
-            Definition::ExternCrateDecl(it) => it.docs(db),
+            Definition::ExternCrateDecl(it) => it.docs_with_rangemap(db),
 
             Definition::BuiltinAttr(it) => {
                 let name = it.name(db);
@@ -276,7 +287,8 @@ impl Definition {
                         name_value_str
                     );
                 }
-                Some(Documentation::new(docs.replace('*', "\\*")))
+
+                return Some((Documentation::new(docs.replace('*', "\\*")), None));
             }
             Definition::ToolModule(_) => None,
             Definition::DeriveHelper(_) => None,
@@ -291,8 +303,9 @@ impl Definition {
             let trait_ = assoc.implemented_trait(db)?;
             let name = Some(assoc.name(db)?);
             let item = trait_.items(db).into_iter().find(|it| it.name(db) == name)?;
-            item.docs(db)
+            item.docs_with_rangemap(db)
         })
+        .map(|(docs, range_map)| (docs, Some(range_map)))
     }
 
     pub fn label(&self, db: &RootDatabase, display_target: DisplayTarget) -> String {
diff --git a/crates/ide-db/src/documentation.rs b/crates/ide-db/src/documentation.rs
index ef2c83992c04..30c355f8b3f9 100644
--- a/crates/ide-db/src/documentation.rs
+++ b/crates/ide-db/src/documentation.rs
@@ -34,11 +34,13 @@ impl From<Documentation> for String {
 
 pub trait HasDocs: HasAttrs {
     fn docs(self, db: &dyn HirDatabase) -> Option<Documentation>;
+    fn docs_with_rangemap(self, db: &dyn HirDatabase) -> Option<(Documentation, DocsRangeMap)>;
     fn resolve_doc_path(
         self,
         db: &dyn HirDatabase,
         link: &str,
         ns: Option<hir::Namespace>,
+        is_inner_doc: bool,
     ) -> Option<hir::DocLinkDef>;
 }
 /// A struct to map text ranges from [`Documentation`] back to TextRanges in the syntax tree.
@@ -53,7 +55,7 @@ pub struct DocsRangeMap {
 
 impl DocsRangeMap {
     /// Maps a [`TextRange`] relative to the documentation string back to its AST range
-    pub fn map(&self, range: TextRange) -> Option<InFile<TextRange>> {
+    pub fn map(&self, range: TextRange) -> Option<(InFile<TextRange>, AttrId)> {
         let found = self.mapping.binary_search_by(|(probe, ..)| probe.ordering(range)).ok()?;
         let (line_docs_range, idx, original_line_src_range) = self.mapping[found];
         if !line_docs_range.contains_range(range) {
@@ -71,7 +73,7 @@ impl DocsRangeMap {
                     text_range.end() + original_line_src_range.start() + relative_range.start(),
                     string.syntax().text_range().len().min(range.len()),
                 );
-                Some(InFile { file_id, value: range })
+                Some((InFile { file_id, value: range }, idx))
             }
             Either::Right(comment) => {
                 let text_range = comment.syntax().text_range();
@@ -82,10 +84,22 @@ impl DocsRangeMap {
                         + relative_range.start(),
                     text_range.len().min(range.len()),
                 );
-                Some(InFile { file_id, value: range })
+                Some((InFile { file_id, value: range }, idx))
             }
         }
     }
+
+    pub fn shift_docstring_line_range(self, offset: TextSize) -> DocsRangeMap {
+        let mapping = self
+            .mapping
+            .into_iter()
+            .map(|(buf_offset, id, base_offset)| {
+                let buf_offset = buf_offset.checked_add(offset).unwrap();
+                (buf_offset, id, base_offset)
+            })
+            .collect_vec();
+        DocsRangeMap { source_map: self.source_map, mapping }
+    }
 }
 
 pub fn docs_with_rangemap(
@@ -161,13 +175,20 @@ macro_rules! impl_has_docs {
             fn docs(self, db: &dyn HirDatabase) -> Option<Documentation> {
                 docs_from_attrs(&self.attrs(db)).map(Documentation)
             }
+            fn docs_with_rangemap(
+                self,
+                db: &dyn HirDatabase,
+            ) -> Option<(Documentation, DocsRangeMap)> {
+                docs_with_rangemap(db, &self.attrs(db))
+            }
             fn resolve_doc_path(
                 self,
                 db: &dyn HirDatabase,
                 link: &str,
-                ns: Option<hir::Namespace>
+                ns: Option<hir::Namespace>,
+                is_inner_doc: bool,
             ) -> Option<hir::DocLinkDef> {
-                resolve_doc_path_on(db, self, link, ns)
+                resolve_doc_path_on(db, self, link, ns, is_inner_doc)
             }
         }
     )*};
@@ -184,13 +205,21 @@ macro_rules! impl_has_docs_enum {
             fn docs(self, db: &dyn HirDatabase) -> Option<Documentation> {
                 hir::$enum::$variant(self).docs(db)
             }
+
+            fn docs_with_rangemap(
+                self,
+                db: &dyn HirDatabase,
+            ) -> Option<(Documentation, DocsRangeMap)> {
+                hir::$enum::$variant(self).docs_with_rangemap(db)
+            }
             fn resolve_doc_path(
                 self,
                 db: &dyn HirDatabase,
                 link: &str,
-                ns: Option<hir::Namespace>
+                ns: Option<hir::Namespace>,
+                is_inner_doc: bool,
             ) -> Option<hir::DocLinkDef> {
-                hir::$enum::$variant(self).resolve_doc_path(db, link, ns)
+                hir::$enum::$variant(self).resolve_doc_path(db, link, ns, is_inner_doc)
             }
         }
     )*};
@@ -207,16 +236,25 @@ impl HasDocs for hir::AssocItem {
         }
     }
 
+    fn docs_with_rangemap(self, db: &dyn HirDatabase) -> Option<(Documentation, DocsRangeMap)> {
+        match self {
+            hir::AssocItem::Function(it) => it.docs_with_rangemap(db),
+            hir::AssocItem::Const(it) => it.docs_with_rangemap(db),
+            hir::AssocItem::TypeAlias(it) => it.docs_with_rangemap(db),
+        }
+    }
+
     fn resolve_doc_path(
         self,
         db: &dyn HirDatabase,
         link: &str,
         ns: Option<hir::Namespace>,
+        is_inner_doc: bool,
     ) -> Option<hir::DocLinkDef> {
         match self {
-            hir::AssocItem::Function(it) => it.resolve_doc_path(db, link, ns),
-            hir::AssocItem::Const(it) => it.resolve_doc_path(db, link, ns),
-            hir::AssocItem::TypeAlias(it) => it.resolve_doc_path(db, link, ns),
+            hir::AssocItem::Function(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+            hir::AssocItem::Const(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+            hir::AssocItem::TypeAlias(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
         }
     }
 }
@@ -238,13 +276,36 @@ impl HasDocs for hir::ExternCrateDecl {
         }
         .map(Documentation::new)
     }
+
+    fn docs_with_rangemap(self, db: &dyn HirDatabase) -> Option<(Documentation, DocsRangeMap)> {
+        let crate_docs = docs_with_rangemap(db, &self.resolved_crate(db)?.root_module().attrs(db));
+        let decl_docs = docs_with_rangemap(db, &self.attrs(db));
+        match (decl_docs, crate_docs) {
+            (None, None) => None,
+            (Some(decl_docs), None) => Some(decl_docs),
+            (None, Some(crate_docs)) => Some(crate_docs),
+            (
+                Some((Documentation(mut decl_docs), mut decl_range_map)),
+                Some((Documentation(crate_docs), crate_range_map)),
+            ) => {
+                decl_docs.push('\n');
+                decl_docs.push('\n');
+                let offset = TextSize::new(decl_docs.len() as u32);
+                decl_docs += &crate_docs;
+                let crate_range_map = crate_range_map.shift_docstring_line_range(offset);
+                decl_range_map.mapping.extend(crate_range_map.mapping);
+                Some((Documentation(decl_docs), decl_range_map))
+            }
+        }
+    }
     fn resolve_doc_path(
         self,
         db: &dyn HirDatabase,
         link: &str,
         ns: Option<hir::Namespace>,
+        is_inner_doc: bool,
     ) -> Option<hir::DocLinkDef> {
-        resolve_doc_path_on(db, self, link, ns)
+        resolve_doc_path_on(db, self, link, ns, is_inner_doc)
     }
 }
 
diff --git a/crates/ide/src/doc_links.rs b/crates/ide/src/doc_links.rs
index f0247f32d7ec..290420346060 100644
--- a/crates/ide/src/doc_links.rs
+++ b/crates/ide/src/doc_links.rs
@@ -5,6 +5,8 @@ mod tests;
 
 mod intra_doc_links;
 
+use std::ops::Range;
+
 use pulldown_cmark::{BrokenLink, CowStr, Event, InlineStr, LinkType, Options, Parser, Tag};
 use pulldown_cmark_to_cmark::{Options as CMarkOptions, cmark_resume_with_options};
 use stdx::format_to;
@@ -15,7 +17,7 @@ use ide_db::{
     RootDatabase,
     base_db::{CrateOrigin, LangCrateOrigin, ReleaseChannel, RootQueryDb},
     defs::{Definition, NameClass, NameRefClass},
-    documentation::{Documentation, HasDocs, docs_with_rangemap},
+    documentation::{DocsRangeMap, Documentation, HasDocs, docs_with_rangemap},
     helpers::pick_best_token,
 };
 use syntax::{
@@ -46,11 +48,17 @@ const MARKDOWN_OPTIONS: Options =
     Options::ENABLE_FOOTNOTES.union(Options::ENABLE_TABLES).union(Options::ENABLE_TASKLISTS);
 
 /// Rewrite documentation links in markdown to point to an online host (e.g. docs.rs)
-pub(crate) fn rewrite_links(db: &RootDatabase, markdown: &str, definition: Definition) -> String {
+pub(crate) fn rewrite_links(
+    db: &RootDatabase,
+    markdown: &str,
+    definition: Definition,
+    range_map: Option<DocsRangeMap>,
+) -> String {
     let mut cb = broken_link_clone_cb;
-    let doc = Parser::new_with_broken_link_callback(markdown, MARKDOWN_OPTIONS, Some(&mut cb));
+    let doc = Parser::new_with_broken_link_callback(markdown, MARKDOWN_OPTIONS, Some(&mut cb))
+        .into_offset_iter();
 
-    let doc = map_links(doc, |target, title| {
+    let doc = map_links(doc, |target, title, range| {
         // This check is imperfect, there's some overlap between valid intra-doc links
         // and valid URLs so we choose to be too eager to try to resolve what might be
         // a URL.
@@ -60,7 +68,16 @@ pub(crate) fn rewrite_links(db: &RootDatabase, markdown: &str, definition: Defin
             // Two possibilities:
             // * path-based links: `../../module/struct.MyStruct.html`
             // * module-based links (AKA intra-doc links): `super::super::module::MyStruct`
-            if let Some((target, title)) = rewrite_intra_doc_link(db, definition, target, title) {
+            let text_range =
+                TextRange::new(range.start.try_into().unwrap(), range.end.try_into().unwrap());
+            let is_inner_doc = range_map
+                .as_ref()
+                .and_then(|range_map| range_map.map(text_range))
+                .map(|(_, attr_id)| attr_id.is_inner_attr())
+                .unwrap_or(false);
+            if let Some((target, title)) =
+                rewrite_intra_doc_link(db, definition, target, title, is_inner_doc)
+            {
                 (None, target, title)
             } else if let Some(target) = rewrite_url_link(db, definition, target) {
                 (Some(LinkType::Inline), target, title.to_owned())
@@ -195,22 +212,23 @@ pub(crate) fn resolve_doc_path_for_def(
     def: Definition,
     link: &str,
     ns: Option<hir::Namespace>,
+    is_inner_doc: bool,
 ) -> Option<Definition> {
     match def {
-        Definition::Module(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Crate(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Function(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Adt(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Variant(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Const(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Static(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Trait(it) => it.resolve_doc_path(db, link, ns),
-        Definition::TraitAlias(it) => it.resolve_doc_path(db, link, ns),
-        Definition::TypeAlias(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Macro(it) => it.resolve_doc_path(db, link, ns),
-        Definition::Field(it) => it.resolve_doc_path(db, link, ns),
-        Definition::SelfType(it) => it.resolve_doc_path(db, link, ns),
-        Definition::ExternCrateDecl(it) => it.resolve_doc_path(db, link, ns),
+        Definition::Module(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Crate(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Function(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Adt(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Variant(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Const(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Static(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Trait(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::TraitAlias(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::TypeAlias(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Macro(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::Field(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::SelfType(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
+        Definition::ExternCrateDecl(it) => it.resolve_doc_path(db, link, ns, is_inner_doc),
         Definition::BuiltinAttr(_)
         | Definition::BuiltinType(_)
         | Definition::BuiltinLifetime(_)
@@ -289,28 +307,39 @@ impl DocCommentToken {
         let relative_comment_offset = offset - original_start - prefix_len;
 
         sema.descend_into_macros(doc_token).into_iter().find_map(|t| {
-            let (node, descended_prefix_len) = match_ast! {
+            let (node, descended_prefix_len, is_inner) = match_ast!{
                 match t {
-                    ast::Comment(comment) => (t.parent()?, TextSize::try_from(comment.prefix().len()).ok()?),
-                    ast::String(string) => (t.parent_ancestors().skip_while(|n| n.kind() != ATTR).nth(1)?, string.open_quote_text_range()?.len()),
+                    ast::Comment(comment) => {
+                        (t.parent()?, TextSize::try_from(comment.prefix().len()).ok()?, comment.is_inner())
+                    },
+                    ast::String(string) => {
+                        let attr = t.parent_ancestors().find_map(ast::Attr::cast)?;
+                        let attr_is_inner = attr.excl_token().map(|excl| excl.kind() == BANG).unwrap_or(false);
+                        (attr.syntax().parent()?, string.open_quote_text_range()?.len(), attr_is_inner)
+                    },
                     _ => return None,
                 }
             };
             let token_start = t.text_range().start();
             let abs_in_expansion_offset = token_start + relative_comment_offset + descended_prefix_len;
 
-            let (attributes, def) = doc_attributes(sema, &node)?;
+            let (attributes, def) = if is_inner && node.kind() != SOURCE_FILE {
+                let parent = node.parent()?;
+                doc_attributes(sema, &parent).unwrap_or(doc_attributes(sema, &parent.parent()?)?)
+            }else {
+                doc_attributes(sema, &node)?
+            };
             let (docs, doc_mapping) = docs_with_rangemap(sema.db, &attributes)?;
-            let (in_expansion_range, link, ns) =
+            let (in_expansion_range, link, ns, is_inner) =
                 extract_definitions_from_docs(&docs).into_iter().find_map(|(range, link, ns)| {
-                    let mapped = doc_mapping.map(range)?;
-                    (mapped.value.contains(abs_in_expansion_offset)).then_some((mapped.value, link, ns))
+                    let (mapped, idx) = doc_mapping.map(range)?;
+                    (mapped.value.contains(abs_in_expansion_offset)).then_some((mapped.value, link, ns, idx.is_inner_attr()))
                 })?;
             // get the relative range to the doc/attribute in the expansion
             let in_expansion_relative_range = in_expansion_range - descended_prefix_len - token_start;
             // Apply relative range to the original input comment
             let absolute_range = in_expansion_relative_range + original_start + prefix_len;
-            let def = resolve_doc_path_for_def(sema.db, def, &link, ns)?;
+            let def = resolve_doc_path_for_def(sema.db, def, &link, ns, is_inner)?;
             cb(def, node, absolute_range)
         })
     }
@@ -369,6 +398,7 @@ fn rewrite_intra_doc_link(
     def: Definition,
     target: &str,
     title: &str,
+    is_inner_doc: bool,
 ) -> Option<(String, String)> {
     let (link, ns) = parse_intra_doc_link(target);
 
@@ -377,7 +407,7 @@ fn rewrite_intra_doc_link(
         None => (link, None),
     };
 
-    let resolved = resolve_doc_path_for_def(db, def, link, ns)?;
+    let resolved = resolve_doc_path_for_def(db, def, link, ns, is_inner_doc)?;
     let mut url = get_doc_base_urls(db, resolved, None, None).0?;
 
     let (_, file, frag) = filename_and_frag_for_def(db, resolved)?;
@@ -421,8 +451,8 @@ fn mod_path_of_def(db: &RootDatabase, def: Definition) -> Option<String> {
 
 /// Rewrites a markdown document, applying 'callback' to each link.
 fn map_links<'e>(
-    events: impl Iterator<Item = Event<'e>>,
-    callback: impl Fn(&str, &str) -> (Option<LinkType>, String, String),
+    events: impl Iterator<Item = (Event<'e>, Range<usize>)>,
+    callback: impl Fn(&str, &str, Range<usize>) -> (Option<LinkType>, String, String),
 ) -> impl Iterator<Item = Event<'e>> {
     let mut in_link = false;
     // holds the origin link target on start event and the rewritten one on end event
@@ -432,7 +462,7 @@ fn map_links<'e>(
     // `Shortcut` type parsed from Start/End tags doesn't make sense for url links
     let mut end_link_type: Option<LinkType> = None;
 
-    events.map(move |evt| match evt {
+    events.map(move |(evt, range)| match evt {
         Event::Start(Tag::Link(link_type, ref target, _)) => {
             in_link = true;
             end_link_target = Some(target.clone());
@@ -449,7 +479,7 @@ fn map_links<'e>(
         }
         Event::Text(s) if in_link => {
             let (link_type, link_target_s, link_name) =
-                callback(&end_link_target.take().unwrap(), &s);
+                callback(&end_link_target.take().unwrap(), &s, range);
             end_link_target = Some(CowStr::Boxed(link_target_s.into()));
             if !matches!(end_link_type, Some(LinkType::Autolink)) {
                 end_link_type = link_type;
@@ -458,7 +488,7 @@ fn map_links<'e>(
         }
         Event::Code(s) if in_link => {
             let (link_type, link_target_s, link_name) =
-                callback(&end_link_target.take().unwrap(), &s);
+                callback(&end_link_target.take().unwrap(), &s, range);
             end_link_target = Some(CowStr::Boxed(link_target_s.into()));
             if !matches!(end_link_type, Some(LinkType::Autolink)) {
                 end_link_type = link_type;
diff --git a/crates/ide/src/doc_links/tests.rs b/crates/ide/src/doc_links/tests.rs
index 6d56b98e57c8..6af156fa668f 100644
--- a/crates/ide/src/doc_links/tests.rs
+++ b/crates/ide/src/doc_links/tests.rs
@@ -5,7 +5,7 @@ use hir::Semantics;
 use ide_db::{
     FilePosition, FileRange, RootDatabase,
     defs::Definition,
-    documentation::{Documentation, HasDocs},
+    documentation::{DocsRangeMap, Documentation, HasDocs},
 };
 use itertools::Itertools;
 use syntax::{AstNode, SyntaxNode, ast, match_ast};
@@ -45,8 +45,8 @@ fn check_external_docs(
 fn check_rewrite(#[rust_analyzer::rust_fixture] ra_fixture: &str, expect: Expect) {
     let (analysis, position) = fixture::position(ra_fixture);
     let sema = &Semantics::new(&analysis.db);
-    let (cursor_def, docs) = def_under_cursor(sema, &position);
-    let res = rewrite_links(sema.db, docs.as_str(), cursor_def);
+    let (cursor_def, docs, range) = def_under_cursor(sema, &position);
+    let res = rewrite_links(sema.db, docs.as_str(), cursor_def, Some(range));
     expect.assert_eq(&res)
 }
 
@@ -56,12 +56,14 @@ fn check_doc_links(#[rust_analyzer::rust_fixture] ra_fixture: &str) {
     let (analysis, position, mut expected) = fixture::annotations(ra_fixture);
     expected.sort_by_key(key_fn);
     let sema = &Semantics::new(&analysis.db);
-    let (cursor_def, docs) = def_under_cursor(sema, &position);
+    let (cursor_def, docs, range) = def_under_cursor(sema, &position);
     let defs = extract_definitions_from_docs(&docs);
     let actual: Vec<_> = defs
         .into_iter()
-        .flat_map(|(_, link, ns)| {
-            let def = resolve_doc_path_for_def(sema.db, cursor_def, &link, ns)
+        .flat_map(|(text_range, link, ns)| {
+            let attr = range.map(text_range);
+            let is_inner_attr = attr.map(|(_file, attr)| attr.is_inner_attr()).unwrap_or(false);
+            let def = resolve_doc_path_for_def(sema.db, cursor_def, &link, ns, is_inner_attr)
                 .unwrap_or_else(|| panic!("Failed to resolve {link}"));
             def.try_to_nav(sema.db).unwrap().into_iter().zip(iter::repeat(link))
         })
@@ -78,7 +80,7 @@ fn check_doc_links(#[rust_analyzer::rust_fixture] ra_fixture: &str) {
 fn def_under_cursor(
     sema: &Semantics<'_, RootDatabase>,
     position: &FilePosition,
-) -> (Definition, Documentation) {
+) -> (Definition, Documentation, DocsRangeMap) {
     let (docs, def) = sema
         .parse_guess_edition(position.file_id)
         .syntax()
@@ -89,31 +91,31 @@ fn def_under_cursor(
         .find_map(|it| node_to_def(sema, &it))
         .expect("no def found")
         .unwrap();
-    let docs = docs.expect("no docs found for cursor def");
-    (def, docs)
+    let (docs, range) = docs.expect("no docs found for cursor def");
+    (def, docs, range)
 }
 
 fn node_to_def(
     sema: &Semantics<'_, RootDatabase>,
     node: &SyntaxNode,
-) -> Option<Option<(Option<Documentation>, Definition)>> {
+) -> Option<Option<(Option<(Documentation, DocsRangeMap)>, Definition)>> {
     Some(match_ast! {
         match node {
-            ast::SourceFile(it)  => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Module(def))),
-            ast::Module(it)      => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Module(def))),
-            ast::Fn(it)          => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Function(def))),
-            ast::Struct(it)      => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Adt(hir::Adt::Struct(def)))),
-            ast::Union(it)       => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Adt(hir::Adt::Union(def)))),
-            ast::Enum(it)        => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Adt(hir::Adt::Enum(def)))),
-            ast::Variant(it)     => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Variant(def))),
-            ast::Trait(it)       => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Trait(def))),
-            ast::Static(it)      => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Static(def))),
-            ast::Const(it)       => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Const(def))),
-            ast::TypeAlias(it)   => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::TypeAlias(def))),
-            ast::Impl(it)        => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::SelfType(def))),
-            ast::RecordField(it) => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Field(def))),
-            ast::TupleField(it)  => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Field(def))),
-            ast::Macro(it)       => sema.to_def(&it).map(|def| (def.docs(sema.db), Definition::Macro(def))),
+            ast::SourceFile(it)  => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Module(def))),
+            ast::Module(it)      => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Module(def))),
+            ast::Fn(it)          => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Function(def))),
+            ast::Struct(it)      => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Adt(hir::Adt::Struct(def)))),
+            ast::Union(it)       => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Adt(hir::Adt::Union(def)))),
+            ast::Enum(it)        => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Adt(hir::Adt::Enum(def)))),
+            ast::Variant(it)     => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Variant(def))),
+            ast::Trait(it)       => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Trait(def))),
+            ast::Static(it)      => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Static(def))),
+            ast::Const(it)       => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Const(def))),
+            ast::TypeAlias(it)   => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::TypeAlias(def))),
+            ast::Impl(it)        => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::SelfType(def))),
+            ast::RecordField(it) => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Field(def))),
+            ast::TupleField(it)  => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Field(def))),
+            ast::Macro(it)       => sema.to_def(&it).map(|def| (def.docs_with_rangemap(sema.db), Definition::Macro(def))),
             // ast::Use(it) => sema.to_def(&it).map(|def| (Box::new(it) as _, def.attrs(sema.db))),
             _ => return None,
         }
@@ -583,12 +585,12 @@ fn doc_links_module() {
 /// [`M::f`]
 mod M$0 {
   //^ M
-  #![doc = "inner_item[`M::S`]"]
+  #![doc = "inner_item[`S`]"]
 
     pub fn f() {}
          //^ M::f
     pub struct S;
-             //^ M::S
+             //^ S
 }
 "#,
     );
diff --git a/crates/ide/src/hover.rs b/crates/ide/src/hover.rs
index 075afcec019f..873e31b4a337 100644
--- a/crates/ide/src/hover.rs
+++ b/crates/ide/src/hover.rs
@@ -456,7 +456,7 @@ pub(crate) fn hover_for_definition(
     let notable_traits = def_ty.map(|ty| notable_traits(db, &ty)).unwrap_or_default();
     let subst_types = subst.map(|subst| subst.types(db));
 
-    let markup = render::definition(
+    let (markup, range_map) = render::definition(
         sema.db,
         def,
         famous_defs.as_ref(),
@@ -469,7 +469,7 @@ pub(crate) fn hover_for_definition(
         display_target,
     );
     HoverResult {
-        markup: render::process_markup(sema.db, def, &markup, config),
+        markup: render::process_markup(sema.db, def, &markup, range_map, config),
         actions: [
             show_fn_references_action(sema.db, def),
             show_implementations_action(sema.db, def),
diff --git a/crates/ide/src/hover/render.rs b/crates/ide/src/hover/render.rs
index 69b83f3b12d8..ad720c8a6274 100644
--- a/crates/ide/src/hover/render.rs
+++ b/crates/ide/src/hover/render.rs
@@ -11,7 +11,7 @@ use hir::{
 use ide_db::{
     RootDatabase,
     defs::Definition,
-    documentation::HasDocs,
+    documentation::{DocsRangeMap, HasDocs},
     famous_defs::FamousDefs,
     generated::lints::{CLIPPY_LINTS, DEFAULT_LINTS, FEATURES},
     syntax_helpers::prettify_macro_expansion,
@@ -21,7 +21,7 @@ use rustc_apfloat::{
     Float,
     ieee::{Half as f16, Quad as f128},
 };
-use span::Edition;
+use span::{Edition, TextSize};
 use stdx::format_to;
 use syntax::{AstNode, AstToken, Direction, SyntaxToken, T, algo, ast, match_ast};
 
@@ -276,13 +276,10 @@ pub(super) fn keyword(
         keyword_hints(sema, token, parent, edition, display_target);
 
     let doc_owner = find_std_module(&famous_defs, &keyword_mod, edition)?;
-    let docs = doc_owner.docs(sema.db)?;
-    let markup = process_markup(
-        sema.db,
-        Definition::Module(doc_owner),
-        &markup(Some(docs.into()), description, None, None, String::new()),
-        config,
-    );
+    let (docs, range_map) = doc_owner.docs_with_rangemap(sema.db)?;
+    let (markup, range_map) =
+        markup(Some(docs.into()), Some(range_map), description, None, None, String::new());
+    let markup = process_markup(sema.db, Definition::Module(doc_owner), &markup, range_map, config);
     Some(HoverResult { markup, actions })
 }
 
@@ -371,11 +368,15 @@ pub(super) fn process_markup(
     db: &RootDatabase,
     def: Definition,
     markup: &Markup,
+    markup_range_map: Option<DocsRangeMap>,
     config: &HoverConfig,
 ) -> Markup {
     let markup = markup.as_str();
-    let markup =
-        if config.links_in_hover { rewrite_links(db, markup, def) } else { remove_links(markup) };
+    let markup = if config.links_in_hover {
+        rewrite_links(db, markup, def, markup_range_map)
+    } else {
+        remove_links(markup)
+    };
     Markup::from(markup)
 }
 
@@ -482,7 +483,7 @@ pub(super) fn definition(
     config: &HoverConfig,
     edition: Edition,
     display_target: DisplayTarget,
-) -> Markup {
+) -> (Markup, Option<DocsRangeMap>) {
     let mod_path = definition_path(db, &def, edition);
     let label = match def {
         Definition::Trait(trait_) => trait_
@@ -518,7 +519,12 @@ pub(super) fn definition(
         }
         _ => def.label(db, display_target),
     };
-    let docs = def.docs(db, famous_defs, display_target);
+    let (docs, range_map) =
+        if let Some((docs, doc_range)) = def.docs_with_rangemap(db, famous_defs, display_target) {
+            (Some(docs), doc_range)
+        } else {
+            (None, None)
+        };
     let value = || match def {
         Definition::Variant(it) => {
             if !it.parent_enum(db).is_data_carrying(db) {
@@ -807,6 +813,7 @@ pub(super) fn definition(
 
     markup(
         docs.map(Into::into),
+        range_map,
         desc,
         extra.is_empty().not().then_some(extra),
         mod_path,
@@ -1083,11 +1090,12 @@ fn definition_path(db: &RootDatabase, &def: &Definition, edition: Edition) -> Op
 
 fn markup(
     docs: Option<String>,
+    range_map: Option<DocsRangeMap>,
     rust: String,
     extra: Option<String>,
     mod_path: Option<String>,
     subst_types: String,
-) -> Markup {
+) -> (Markup, Option<DocsRangeMap>) {
     let mut buf = String::new();
 
     if let Some(mod_path) = mod_path {
@@ -1106,9 +1114,15 @@ fn markup(
     }
 
     if let Some(doc) = docs {
-        format_to!(buf, "\n___\n\n{}", doc);
+        format_to!(buf, "\n___\n\n");
+        let offset = TextSize::new(buf.len() as u32);
+        let buf_range_map = range_map.map(|range_map| range_map.shift_docstring_line_range(offset));
+        format_to!(buf, "{}", doc);
+
+        (buf.into(), buf_range_map)
+    } else {
+        (buf.into(), None)
     }
-    buf.into()
 }
 
 fn find_std_module(
diff --git a/crates/ide/src/syntax_highlighting/inject.rs b/crates/ide/src/syntax_highlighting/inject.rs
index 0998e14c87ba..7f5c2c1ec849 100644
--- a/crates/ide/src/syntax_highlighting/inject.rs
+++ b/crates/ide/src/syntax_highlighting/inject.rs
@@ -129,11 +129,18 @@ pub(super) fn doc_comment(
         extract_definitions_from_docs(&docs)
             .into_iter()
             .filter_map(|(range, link, ns)| {
-                doc_mapping.map(range).filter(|mapping| mapping.file_id == src_file_id).and_then(
-                    |InFile { value: mapped_range, .. }| {
-                        Some(mapped_range).zip(resolve_doc_path_for_def(sema.db, def, &link, ns))
-                    },
-                )
+                doc_mapping
+                    .map(range)
+                    .filter(|(mapping, _)| mapping.file_id == src_file_id)
+                    .and_then(|(InFile { value: mapped_range, .. }, attr_id)| {
+                        Some(mapped_range).zip(resolve_doc_path_for_def(
+                            sema.db,
+                            def,
+                            &link,
+                            ns,
+                            attr_id.is_inner_attr(),
+                        ))
+                    })
             })
             .for_each(|(range, def)| {
                 hl.add(HlRange {
diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html b/crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html
index 75d96b422c10..9996a871580f 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html
@@ -40,9 +40,9 @@
 .invalid_escape_sequence { color: #FC5555; text-decoration: wavy underline; }
 .unresolved_reference    { color: #FC5555; text-decoration: wavy underline; }
 </style>
-<pre><code><span class="comment documentation">//! </span><span class="struct documentation injected intra_doc_link">[foo::Struct]</span>
+<pre><code><span class="comment documentation">//! </span><span class="struct documentation injected intra_doc_link">[Struct]</span>
 <span class="comment documentation">//! This is an intra doc injection test for modules</span>
-<span class="comment documentation">//! </span><span class="struct documentation injected intra_doc_link">[foo::Struct]</span>
+<span class="comment documentation">//! </span><span class="struct documentation injected intra_doc_link">[Struct]</span>
 <span class="comment documentation">//! This is an intra doc injection test for modules</span>
 
 <span class="keyword">pub</span> <span class="keyword">struct</span> <span class="struct declaration public">Struct</span><span class="semicolon">;</span>
diff --git a/crates/ide/src/syntax_highlighting/tests.rs b/crates/ide/src/syntax_highlighting/tests.rs
index a8d953094667..dd359326c61d 100644
--- a/crates/ide/src/syntax_highlighting/tests.rs
+++ b/crates/ide/src/syntax_highlighting/tests.rs
@@ -1072,9 +1072,9 @@ fn test_mod_hl_injection() {
     check_highlighting(
         r##"
 //- /foo.rs
-//! [foo::Struct]
+//! [Struct]
 //! This is an intra doc injection test for modules
-//! [foo::Struct]
+//! [Struct]
 //! This is an intra doc injection test for modules
 
 pub struct Struct;
@@ -1097,9 +1097,9 @@ mod foo;
 /// This is an intra doc injection test for modules
 mod foo;
 //- /foo.rs
-//! [foo::Struct]
+//! [Struct]
 //! This is an intra doc injection test for modules
-//! [foo::Struct]
+//! [Struct]
 //! This is an intra doc injection test for modules
 
 pub struct Struct;

From 318185720c689927daaa58577e078cd288709e26 Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Wed, 7 May 2025 00:36:42 +0900
Subject: [PATCH 07/10] add doc link test for goto def

Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
---
 crates/ide/src/goto_definition.rs | 68 +++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/crates/ide/src/goto_definition.rs b/crates/ide/src/goto_definition.rs
index b894e857522f..c60ca3562f66 100644
--- a/crates/ide/src/goto_definition.rs
+++ b/crates/ide/src/goto_definition.rs
@@ -1922,6 +1922,74 @@ pub fn foo() { }
         )
     }
 
+    #[test]
+    fn goto_def_for_intra_doc_link_outer_same_file() {
+        check(
+            r#"
+/// [`S$0`]
+mod m {
+    //! [`super::S`]
+}
+struct S;
+     //^
+            "#,
+        );
+
+        check(
+            r#"
+/// [`S$0`]
+mod m {}
+struct S;
+     //^
+            "#,
+        );
+
+        check(
+            r#"
+/// [`S$0`]
+fn f() {
+    //! [`S`]
+}
+struct S;
+     //^
+            "#,
+        );
+    }
+
+    #[test]
+    fn goto_def_for_intra_doc_link_inner_same_file() {
+        check(
+            r#"
+/// [`S`]
+mod m {
+    //! [`super::S$0`]
+}
+struct S;
+     //^
+            "#,
+        );
+
+        check(
+            r#"
+mod m {
+    //! [`super::S$0`]
+}
+struct S;
+     //^
+            "#,
+        );
+
+        check(
+            r#"
+fn f() {
+    //! [`S$0`]
+}
+struct S;
+     //^
+            "#,
+        );
+    }
+
     #[test]
     fn goto_def_for_intra_doc_link_inner() {
         check(

From cc0e3acd91de448f0491343cb701bc9a6cf60d0d Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Wed, 7 May 2025 00:36:52 +0900
Subject: [PATCH 08/10] add doc link test for hover

Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
---
 crates/ide/src/hover/tests.rs | 122 ++++++++++++++++++++++++++++++++++
 1 file changed, 122 insertions(+)

diff --git a/crates/ide/src/hover/tests.rs b/crates/ide/src/hover/tests.rs
index 7b7eef9d5793..06ca24c3ec35 100644
--- a/crates/ide/src/hover/tests.rs
+++ b/crates/ide/src/hover/tests.rs
@@ -7374,6 +7374,128 @@ pub struct Foo(i32);
     );
 }
 
+#[test]
+fn hover_intra_inner_attr() {
+    check(
+        r#"
+/// outer comment for [`Foo`]
+#[doc = "Doc outer comment for [`Foo`]"]
+pub fn Foo {
+    //! inner comment for [`Foo$0`]
+    #![doc = "Doc inner comment for [`Foo`]"]
+}
+"#,
+        expect![[r#"
+            *[`Foo`]*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            pub fn Foo()
+            ```
+
+            ---
+
+            outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            Doc outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            inner comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            Doc inner comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+        "#]],
+    );
+
+    check(
+        r#"
+/// outer comment for [`Foo`]
+#[doc = "Doc outer comment for [`Foo`]"]
+pub mod Foo {
+    //! inner comment for [`super::Foo$0`]
+    #![doc = "Doc inner comment for [`super::Foo`]"]
+}
+"#,
+        expect![[r#"
+            *[`super::Foo`]*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            pub mod Foo
+            ```
+
+            ---
+
+            outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            Doc outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            inner comment for [`super::Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            Doc inner comment for [`super::Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+        "#]],
+    );
+}
+
+#[test]
+fn hover_intra_outer_attr() {
+    check(
+        r#"
+/// outer comment for [`Foo$0`]
+#[doc = "Doc outer comment for [`Foo`]"]
+pub fn Foo() {
+    //! inner comment for [`Foo`]
+    #![doc = "Doc inner comment for [`Foo`]"]
+}
+"#,
+        expect![[r#"
+            *[`Foo`]*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            pub fn Foo()
+            ```
+
+            ---
+
+            outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            Doc outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            inner comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+            Doc inner comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/fn.Foo.html)
+        "#]],
+    );
+
+    check(
+        r#"
+/// outer comment for [`Foo$0`]
+#[doc = "Doc outer comment for [`Foo`]"]
+pub mod Foo {
+    //! inner comment for [`super::Foo`]
+    #![doc = "Doc inner comment for [`super::Foo`]"]
+}
+"#,
+        expect![[r#"
+            *[`Foo`]*
+
+            ```rust
+            ra_test_fixture
+            ```
+
+            ```rust
+            pub mod Foo
+            ```
+
+            ---
+
+            outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            Doc outer comment for [`Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            inner comment for [`super::Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+            Doc inner comment for [`super::Foo`](https://docs.rs/ra_test_fixture/*/ra_test_fixture/Foo/index.html)
+        "#]],
+    );
+}
+
 #[test]
 fn hover_intra_generics() {
     check(

From 0235ff883f01e865fc41c4393c0e15559b0876f3 Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Wed, 7 May 2025 02:56:03 +0900
Subject: [PATCH 09/10] extract function: `doc_attributes` to find def from
 inner doc

Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
---
 crates/ide/src/doc_links.rs | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/crates/ide/src/doc_links.rs b/crates/ide/src/doc_links.rs
index 290420346060..2c983287d89c 100644
--- a/crates/ide/src/doc_links.rs
+++ b/crates/ide/src/doc_links.rs
@@ -12,7 +12,9 @@ use pulldown_cmark_to_cmark::{Options as CMarkOptions, cmark_resume_with_options
 use stdx::format_to;
 use url::Url;
 
-use hir::{Adt, AsAssocItem, AssocItem, AssocItemContainer, HasAttrs, db::HirDatabase, sym};
+use hir::{
+    Adt, AsAssocItem, AssocItem, AssocItemContainer, AttrsWithOwner, HasAttrs, db::HirDatabase, sym,
+};
 use ide_db::{
     RootDatabase,
     base_db::{CrateOrigin, LangCrateOrigin, ReleaseChannel, RootQueryDb},
@@ -322,13 +324,7 @@ impl DocCommentToken {
             };
             let token_start = t.text_range().start();
             let abs_in_expansion_offset = token_start + relative_comment_offset + descended_prefix_len;
-
-            let (attributes, def) = if is_inner && node.kind() != SOURCE_FILE {
-                let parent = node.parent()?;
-                doc_attributes(sema, &parent).unwrap_or(doc_attributes(sema, &parent.parent()?)?)
-            }else {
-                doc_attributes(sema, &node)?
-            };
+            let (attributes, def) = Self::doc_attributes(sema, &node, is_inner)?;
             let (docs, doc_mapping) = docs_with_rangemap(sema.db, &attributes)?;
             let (in_expansion_range, link, ns, is_inner) =
                 extract_definitions_from_docs(&docs).into_iter().find_map(|(range, link, ns)| {
@@ -343,6 +339,28 @@ impl DocCommentToken {
             cb(def, node, absolute_range)
         })
     }
+
+    /// When we hover a inner doc item, this find a attached definition.
+    /// ```
+    /// // node == ITEM_LIST
+    /// // node.parent == EXPR_BLOCK
+    /// // node.parent().parent() == FN
+    /// fn f() {
+    ///    //! [`S$0`]
+    /// }
+    /// ```
+    fn doc_attributes(
+        sema: &Semantics<'_, RootDatabase>,
+        node: &SyntaxNode,
+        is_inner_doc: bool,
+    ) -> Option<(AttrsWithOwner, Definition)> {
+        if is_inner_doc && node.kind() != SOURCE_FILE {
+            let parent = node.parent()?;
+            doc_attributes(sema, &parent).or(doc_attributes(sema, &parent.parent()?))
+        } else {
+            doc_attributes(sema, node)
+        }
+    }
 }
 
 fn broken_link_clone_cb(link: BrokenLink<'_>) -> Option<(CowStr<'_>, CowStr<'_>)> {

From 7c7d4401884bd4e614923210897e639c9eada692 Mon Sep 17 00:00:00 2001
From: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
Date: Thu, 8 May 2025 23:37:47 +0900
Subject: [PATCH 10/10] add assert to check ast_index smaller than
 INNER_ATTR_SET_BIT

Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
---
 crates/hir-expand/src/attrs.rs | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/crates/hir-expand/src/attrs.rs b/crates/hir-expand/src/attrs.rs
index 4e519452aa69..94c97713f065 100644
--- a/crates/hir-expand/src/attrs.rs
+++ b/crates/hir-expand/src/attrs.rs
@@ -123,15 +123,15 @@ impl RawAttrs {
             (None, entries @ Some(_)) => Self { entries },
             (Some(entries), None) => Self { entries: Some(entries.clone()) },
             (Some(a), Some(b)) => {
-                let last_ast_index = a.slice.last().map_or(0, |it| it.id.ast_index() + 1) as u32;
+                let last_ast_index = a.slice.last().map_or(0, |it| it.id.ast_index() + 1);
                 let items = a
                     .slice
                     .iter()
                     .cloned()
                     .chain(b.slice.iter().map(|it| {
                         let mut it = it.clone();
-                        let id = it.id.ast_index() as u32 + last_ast_index;
-                        it.id = AttrId::new(id as usize, it.id.is_inner_attr());
+                        let id = it.id.ast_index() + last_ast_index;
+                        it.id = AttrId::new(id, it.id.is_inner_attr());
                         it
                     }))
                     .collect::<Vec<_>>();
@@ -175,24 +175,20 @@ pub struct AttrId {
 // FIXME: This only handles a single level of cfg_attr nesting
 // that is `#[cfg_attr(all(), cfg_attr(all(), cfg(any())))]` breaks again
 impl AttrId {
-    const INNER_ATTR_SET_BIT: usize = 1 << 31;
+    const INNER_ATTR_SET_BIT: u32 = 1 << 31;
 
     pub fn new(id: usize, is_inner: bool) -> Self {
-        Self {
-            id: if is_inner {
-                id | Self::INNER_ATTR_SET_BIT
-            } else {
-                id & !Self::INNER_ATTR_SET_BIT
-            } as u32,
-        }
+        assert!(id <= !Self::INNER_ATTR_SET_BIT as usize);
+        let id = id as u32;
+        Self { id: if is_inner { id | Self::INNER_ATTR_SET_BIT } else { id } }
     }
 
     pub fn ast_index(&self) -> usize {
-        self.id as usize & !Self::INNER_ATTR_SET_BIT
+        (self.id & !Self::INNER_ATTR_SET_BIT) as usize
     }
 
     pub fn is_inner_attr(&self) -> bool {
-        (self.id as usize) & Self::INNER_ATTR_SET_BIT != 0
+        self.id & Self::INNER_ATTR_SET_BIT != 0
     }
 }