Auto merge of #12913 - Veykril:attr-merge, r=Veykril

fix: Fix ast-id up when merging raw attributes

Fixes https://github.com/rust-lang/rust-analyzer/issues/12912

crates/hir-def/src/attr.rs

@@ -124,13 +124,24 @@ impl RawAttrs {
 
     pub(crate) fn merge(&self, other: Self) -> Self {
         // FIXME: This needs to fixup `AttrId`s
-        match (&self.entries, &other.entries) {
+        match (&self.entries, other.entries) {
             (None, None) => Self::EMPTY,
-            (Some(entries), None) | (None, Some(entries)) => {
+            (None, entries @ Some(_)) => Self { entries },
-                Self { entries: Some(entries.clone()) }
+            (Some(entries), None) => Self { entries: Some(entries.clone()) },
-            }
             (Some(a), Some(b)) => {
-                Self { entries: Some(a.iter().chain(b.iter()).cloned().collect()) }
+                let last_ast_index = a.last().map_or(0, |it| it.id.ast_index + 1);
+                Self {
+                    entries: Some(
+                        a.iter()
+                            .cloned()
+                            .chain(b.iter().map(|it| {
+                                let mut it = it.clone();
+                                it.id.ast_index += last_ast_index;
+                                it
+                            }))
+                            .collect(),
+                    ),
+                }
             }
         }
     }

crates/ide/src/syntax_highlighting.rs

@@ -13,7 +13,7 @@ mod html;
 #[cfg(test)]
 mod tests;
 
-use hir::{InFile, Name, Semantics};
+use hir::{Name, Semantics};
 use ide_db::{FxHashMap, RootDatabase};
 use syntax::{
     ast, AstNode, AstToken, NodeOrToken, SyntaxKind::*, SyntaxNode, TextRange, WalkEvent, T,
@@ -325,7 +325,7 @@ fn traverse(
             Leave(NodeOrToken::Node(node)) => {
                 // Doc comment highlighting injection, we do this when leaving the node
                 // so that we overwrite the highlighting of the doc comment itself.
-                inject::doc_comment(hl, sema, InFile::new(file_id.into(), &node));
+                inject::doc_comment(hl, sema, file_id, &node);
                 continue;
             }
         };

crates/ide/src/syntax_highlighting/inject.rs

@@ -5,7 +5,8 @@ use std::mem;
 use either::Either;
 use hir::{InFile, Semantics};
 use ide_db::{
-    active_parameter::ActiveParameter, defs::Definition, rust_doc::is_rust_fence, SymbolKind,
+    active_parameter::ActiveParameter, base_db::FileId, defs::Definition, rust_doc::is_rust_fence,
+    SymbolKind,
 };
 use syntax::{
     ast::{self, AstNode, IsString, QuoteOffsets},
@@ -81,16 +82,18 @@ pub(super) fn ra_fixture(
 const RUSTDOC_FENCE_LENGTH: usize = 3;
 const RUSTDOC_FENCES: [&str; 2] = ["```", "~~~"];
 
-/// Injection of syntax highlighting of doctests.
+/// Injection of syntax highlighting of doctests and intra doc links.
 pub(super) fn doc_comment(
     hl: &mut Highlights,
     sema: &Semantics<'_, RootDatabase>,
-    InFile { file_id: src_file_id, value: node }: InFile<&SyntaxNode>,
+    src_file_id: FileId,
+    node: &SyntaxNode,
 ) {
     let (attributes, def) = match doc_attributes(sema, node) {
         Some(it) => it,
         None => return,
     };
+    let src_file_id = src_file_id.into();
 
     // Extract intra-doc links and emit highlights for them.
     if let Some((docs, doc_mapping)) = attributes.docs_with_rangemap(sema.db) {

crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_inline.html

@@ -0,0 +1,51 @@
+
+<style>
+body                { margin: 0; }
+pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padding: 0.4em; }
+
+.lifetime           { color: #DFAF8F; font-style: italic; }
+.label              { color: #DFAF8F; font-style: italic; }
+.comment            { color: #7F9F7F; }
+.documentation      { color: #629755; }
+.intra_doc_link     { font-style: italic; }
+.injected           { opacity: 0.65 ; }
+.struct, .enum      { color: #7CB8BB; }
+.enum_variant       { color: #BDE0F3; }
+.string_literal     { color: #CC9393; }
+.field              { color: #94BFF3; }
+.function           { color: #93E0E3; }
+.function.unsafe    { color: #BC8383; }
+.trait.unsafe       { color: #BC8383; }
+.operator.unsafe    { color: #BC8383; }
+.mutable.unsafe     { color: #BC8383; text-decoration: underline; }
+.keyword.unsafe     { color: #BC8383; font-weight: bold; }
+.macro.unsafe       { color: #BC8383; }
+.parameter          { color: #94BFF3; }
+.text               { color: #DCDCCC; }
+.type               { color: #7CB8BB; }
+.builtin_type       { color: #8CD0D3; }
+.type_param         { color: #DFAF8F; }
+.attribute          { color: #94BFF3; }
+.numeric_literal    { color: #BFEBBF; }
+.bool_literal       { color: #BFE6EB; }
+.macro              { color: #94BFF3; }
+.derive             { color: #94BFF3; font-style: italic; }
+.module             { color: #AFD8AF; }
+.value_param        { color: #DCDCCC; }
+.variable           { color: #DCDCCC; }
+.format_specifier   { color: #CC696B; }
+.mutable            { text-decoration: underline; }
+.escape_sequence    { color: #94BFF3; }
+.keyword            { color: #F0DFAF; font-weight: bold; }
+.control            { font-style: italic; }
+.reference          { font-style: italic; font-weight: bold; }
+
+.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>
+<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">//! 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>
+</code></pre>

crates/ide/src/syntax_highlighting/test_data/highlight_module_docs_outline.html

@@ -0,0 +1,50 @@
+
+<style>
+body                { margin: 0; }
+pre                 { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padding: 0.4em; }
+
+.lifetime           { color: #DFAF8F; font-style: italic; }
+.label              { color: #DFAF8F; font-style: italic; }
+.comment            { color: #7F9F7F; }
+.documentation      { color: #629755; }
+.intra_doc_link     { font-style: italic; }
+.injected           { opacity: 0.65 ; }
+.struct, .enum      { color: #7CB8BB; }
+.enum_variant       { color: #BDE0F3; }
+.string_literal     { color: #CC9393; }
+.field              { color: #94BFF3; }
+.function           { color: #93E0E3; }
+.function.unsafe    { color: #BC8383; }
+.trait.unsafe       { color: #BC8383; }
+.operator.unsafe    { color: #BC8383; }
+.mutable.unsafe     { color: #BC8383; text-decoration: underline; }
+.keyword.unsafe     { color: #BC8383; font-weight: bold; }
+.macro.unsafe       { color: #BC8383; }
+.parameter          { color: #94BFF3; }
+.text               { color: #DCDCCC; }
+.type               { color: #7CB8BB; }
+.builtin_type       { color: #8CD0D3; }
+.type_param         { color: #DFAF8F; }
+.attribute          { color: #94BFF3; }
+.numeric_literal    { color: #BFEBBF; }
+.bool_literal       { color: #BFE6EB; }
+.macro              { color: #94BFF3; }
+.derive             { color: #94BFF3; font-style: italic; }
+.module             { color: #AFD8AF; }
+.value_param        { color: #DCDCCC; }
+.variable           { color: #DCDCCC; }
+.format_specifier   { color: #CC696B; }
+.mutable            { text-decoration: underline; }
+.escape_sequence    { color: #94BFF3; }
+.keyword            { color: #F0DFAF; font-weight: bold; }
+.control            { font-style: italic; }
+.reference          { font-style: italic; font-weight: bold; }
+
+.unresolved_reference { color: #FC5555; text-decoration: wavy underline; }
+</style>
+<pre><code><span class="comment documentation">/// </span><span class="struct documentation injected intra_doc_link">[crate::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">[crate::foo::Struct]</span>
+<span class="comment documentation">/// This is an intra doc injection test for modules</span>
+<span class="keyword">mod</span> <span class="module declaration">foo</span><span class="semicolon">;</span>
+</code></pre>

crates/ide/src/syntax_highlighting/tests.rs

@@ -914,6 +914,48 @@ fn main() {
     );
 }
 
+#[test]
+fn test_mod_hl_injection() {
+    check_highlighting(
+        r##"
+//- /foo.rs
+//! [Struct]
+//! This is an intra doc injection test for modules
+//! [Struct]
+//! This is an intra doc injection test for modules
+
+pub struct Struct;
+//- /lib.rs crate:foo
+/// [crate::foo::Struct]
+/// This is an intra doc injection test for modules
+/// [crate::foo::Struct]
+/// This is an intra doc injection test for modules
+mod foo;
+"##,
+        expect_file!["./test_data/highlight_module_docs_inline.html"],
+        false,
+    );
+    check_highlighting(
+        r##"
+//- /lib.rs crate:foo
+/// [crate::foo::Struct]
+/// This is an intra doc injection test for modules
+/// [crate::foo::Struct]
+/// This is an intra doc injection test for modules
+mod foo;
+//- /foo.rs
+//! [Struct]
+//! This is an intra doc injection test for modules
+//! [Struct]
+//! This is an intra doc injection test for modules
+
+pub struct Struct;
+"##,
+        expect_file!["./test_data/highlight_module_docs_outline.html"],
+        false,
+    );
+}
+
 #[test]
 #[cfg_attr(
     all(unix, not(target_pointer_width = "64")),