fix: Fix IDE layer not resolving some macro calls

Author: Veykril

src/tools/rust-analyzer/crates/hir-def/src/nameres/assoc.rs

@@ -75,7 +75,7 @@ impl TraitItems {
         })
     }
 
-    pub fn attribute_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ {
+    pub fn macro_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ {
         self.macro_calls.iter().flat_map(|it| it.iter()).copied()
     }
 }
@@ -109,7 +109,7 @@ impl ImplItems {
         (Arc::new(ImplItems { items, macro_calls }), DefDiagnostics::new(diagnostics))
     }
 
-    pub fn attribute_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ {
+    pub fn macro_calls(&self) -> impl Iterator<Item = (AstId<ast::Item>, MacroCallId)> + '_ {
         self.macro_calls.iter().flat_map(|it| it.iter()).copied()
     }
 }

src/tools/rust-analyzer/crates/hir/src/semantics.rs

@@ -408,11 +408,7 @@ impl<'db> SemanticsImpl<'db> {
     }
 
     pub fn expand_macro_call(&self, macro_call: &ast::MacroCall) -> Option<InFile<SyntaxNode>> {
-        let sa = self.analyze_no_infer(macro_call.syntax())?;
-
-        let macro_call = InFile::new(sa.file_id, macro_call);
-        let file_id = sa.expansion(self.db, macro_call)?;
-
+        let file_id = self.to_def(macro_call)?;
         let node = self.parse_or_expand(file_id.into());
         Some(InFile::new(file_id.into(), node))
     }
@@ -434,10 +430,7 @@ impl<'db> SemanticsImpl<'db> {
         &self,
         macro_call: &ast::MacroCall,
     ) -> Option<ExpandResult<SyntaxNode>> {
-        let sa = self.analyze_no_infer(macro_call.syntax())?;
-
-        let macro_call = InFile::new(sa.file_id, macro_call);
-        let file_id = sa.expansion(self.db, macro_call)?;
+        let file_id = self.to_def(macro_call)?;
         let macro_call = self.db.lookup_intern_macro_call(file_id);
 
         let skip = matches!(
@@ -1097,16 +1090,7 @@ impl<'db> SemanticsImpl<'db> {
                             let file_id = match m_cache.get(&mcall) {
                                 Some(&it) => it,
                                 None => {
-                                    let it = token
-                                        .parent()
-                                        .and_then(|parent| {
-                                            self.analyze_impl(
-                                                InFile::new(expansion, &parent),
-                                                None,
-                                                false,
-                                            )
-                                        })?
-                                        .expansion(self.db, mcall.as_ref())?;
+                                    let it = ast::MacroCall::to_def(self, mcall.as_ref())?;
                                     m_cache.insert(mcall, it);
                                     it
                                 }
@@ -1562,14 +1546,8 @@ impl<'db> SemanticsImpl<'db> {
     }
 
     pub fn resolve_macro_call_arm(&self, macro_call: &ast::MacroCall) -> Option<u32> {
-        let sa = self.analyze(macro_call.syntax())?;
-        self.db
-            .parse_macro_expansion(
-                sa.expansion(self.db, self.wrap_node_infile(macro_call.clone()).as_ref())?,
-            )
-            .value
-            .1
-            .matched_arm
+        let file_id = self.to_def(macro_call)?;
+        self.db.parse_macro_expansion(file_id).value.1.matched_arm
     }
 
     pub fn get_unsafe_ops(&self, def: DefWithBody) -> FxHashSet<ExprOrPatSource> {

src/tools/rust-analyzer/crates/hir/src/semantics/child_by_source.rs

@@ -36,9 +36,14 @@ impl ChildBySource for TraitId {
     fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) {
         let data = db.trait_items(*self);
 
-        data.attribute_calls().filter(|(ast_id, _)| ast_id.file_id == file_id).for_each(
+        data.macro_calls().filter(|(ast_id, _)| ast_id.file_id == file_id).for_each(
             |(ast_id, call_id)| {
-                res[keys::ATTR_MACRO_CALL].insert(ast_id.to_ptr(db), call_id);
+                let ptr = ast_id.to_ptr(db);
+                if let Some(ptr) = ptr.cast::<ast::MacroCall>() {
+                    res[keys::MACRO_CALL].insert(ptr, call_id);
+                } else {
+                    res[keys::ATTR_MACRO_CALL].insert(ptr, call_id);
+                }
             },
         );
         data.items.iter().for_each(|&(_, item)| {
@@ -50,10 +55,14 @@ impl ChildBySource for TraitId {
 impl ChildBySource for ImplId {
     fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) {
         let data = db.impl_items(*self);
-        // FIXME: Macro calls
-        data.attribute_calls().filter(|(ast_id, _)| ast_id.file_id == file_id).for_each(
+        data.macro_calls().filter(|(ast_id, _)| ast_id.file_id == file_id).for_each(
             |(ast_id, call_id)| {
-                res[keys::ATTR_MACRO_CALL].insert(ast_id.to_ptr(db), call_id);
+                let ptr = ast_id.to_ptr(db);
+                if let Some(ptr) = ptr.cast::<ast::MacroCall>() {
+                    res[keys::MACRO_CALL].insert(ptr, call_id);
+                } else {
+                    res[keys::ATTR_MACRO_CALL].insert(ptr, call_id);
+                }
             },
         );
         data.items.iter().for_each(|&(_, item)| {

src/tools/rust-analyzer/crates/ide/src/expand_macro.rs

@@ -719,4 +719,44 @@ __log!(written:%; "Test"$0);
             "#]],
         );
     }
+
+    #[test]
+    fn assoc_call() {
+        check(
+            r#"
+macro_rules! mac {
+    () => { fn assoc() {} }
+}
+impl () {
+    mac$0!();
+}
+    "#,
+            expect![[r#"
+                mac!
+                fn assoc(){}"#]],
+        );
+    }
+
+    #[test]
+    fn eager() {
+        check(
+            r#"
+//- minicore: concat
+macro_rules! my_concat {
+    ($head:expr, $($tail:tt)*) => { concat!($head, $($tail)*) };
+}
+
+
+fn test() {
+    _ = my_concat!(
+        conc$0at!("<", ">"),
+        "hi",
+    );
+}
+    "#,
+            expect![[r#"
+                my_concat!
+                "<>hi""#]],
+        );
+    }
 }

src/tools/rust-analyzer/crates/rust-analyzer/src/cli/analysis_stats.rs

@@ -1023,7 +1023,7 @@ impl flags::AnalysisStats {
             percentage(num_pats_partially_unknown, num_pats),
             num_pat_type_mismatches
         );
-        eprintln!("  panics: {}", panics);
+        eprintln!("  panics: {panics}");
         eprintln!("{:<20} {}", "Inference:", inference_time);
         report_metric("unknown type", num_exprs_unknown, "#");
         report_metric("type mismatches", num_expr_type_mismatches, "#");