2 files changed, 34 insertions, 23 deletions

diff --git a/crates/hir_def/src/nameres/collector.rs b/crates/hir_def/src/nameres/collector.rs
index 66d9396aa..221a5a556 100644
--- a/crates/hir_def/src/nameres/collector.rs
+++ b/crates/hir_def/src/nameres/collector.rs
@@ -539,6 +539,11 @@ impl DefCollector<'_> {
         let res = self.def_map.resolve_name_in_extern_prelude(self.db, &extern_crate.name);
 
         if let Some(ModuleDefId::ModuleId(m)) = res.take_types() {
+            if m == self.def_map.module_id(current_module_id) {
+                cov_mark::hit!(ignore_macro_use_extern_crate_self);
+                return;
+            }
+
             cov_mark::hit!(macro_rules_from_other_crates_are_visible_with_macro_use);
             self.import_all_macros_exported(current_module_id, m.krate);
         }
@@ -864,6 +869,17 @@ impl DefCollector<'_> {
         let mut resolved = Vec::new();
         let mut res = ReachedFixedPoint::Yes;
         macros.retain(|directive| {
+            let resolver = |path| {
+                let resolved_res = self.def_map.resolve_path_fp_with_macro(
+                    self.db,
+                    ResolveMode::Other,
+                    directive.module_id,
+                    &path,
+                    BuiltinShadowMode::Module,
+                );
+                resolved_res.resolved_def.take_macros()
+            };
+
             match &directive.kind {
                 MacroDirectiveKind::FnLike { ast_id, fragment } => {
                     match macro_call_as_call_id(
@@ -871,16 +887,7 @@ impl DefCollector<'_> {
                         *fragment,
                         self.db,
                         self.def_map.krate,
-                        |path| {
-                            let resolved_res = self.def_map.resolve_path_fp_with_macro(
-                                self.db,
-                                ResolveMode::Other,
-                                directive.module_id,
-                                &path,
-                                BuiltinShadowMode::Module,
-                            );
-                            resolved_res.resolved_def.take_macros()
-                        },
+                        &resolver,
                         &mut |_err| (),
                     ) {
                         Ok(Ok(call_id)) => {
@@ -897,7 +904,7 @@ impl DefCollector<'_> {
                         *derive_attr,
                         self.db,
                         self.def_map.krate,
-                        |path| self.resolve_derive_macro(directive.module_id, &path),
+                        &resolver,
                     ) {
                         Ok(call_id) => {
                             resolved.push((directive.module_id, call_id, directive.depth));
@@ -923,18 +930,6 @@ impl DefCollector<'_> {
         res
     }
 
-    fn resolve_derive_macro(&self, module: LocalModuleId, path: &ModPath) -> Option<MacroDefId> {
-        let resolved_res = self.def_map.resolve_path_fp_with_macro(
-            self.db,
-            ResolveMode::Other,
-            module,
-            &path,
-            BuiltinShadowMode::Module,
-        );
-
-        resolved_res.resolved_def.take_macros()
-    }
-
     fn collect_macro_expansion(
         &mut self,
         module_id: LocalModuleId,
diff --git a/crates/hir_def/src/nameres/tests.rs b/crates/hir_def/src/nameres/tests.rs
index 4f2e7a2f9..9f652731d 100644
--- a/crates/hir_def/src/nameres/tests.rs
+++ b/crates/hir_def/src/nameres/tests.rs
@@ -411,6 +411,22 @@ struct Arc;
 }
 
 #[test]
+fn macro_use_extern_crate_self() {
+    cov_mark::check!(ignore_macro_use_extern_crate_self);
+    check(
+        r#"
+//- /main.rs crate:main
+#[macro_use]
+extern crate self as bla;
+"#,
+        expect![[r#"
+            crate
+            bla: t
+        "#]],
+    );
+}
+
+#[test]
 fn reexport_across_crates() {
     check(
         r#"