2 files changed, 8 insertions, 25 deletions

diff --git a/crates/hir/src/diagnostics.rs b/crates/hir/src/diagnostics.rs
index 158626dc0..ec0a8fe41 100644
--- a/crates/hir/src/diagnostics.rs
+++ b/crates/hir/src/diagnostics.rs
@@ -32,7 +32,7 @@ macro_rules! diagnostics {
     };
 }
 
-diagnostics![UnresolvedModule, MissingFields];
+diagnostics![UnresolvedModule, UnresolvedExternCrate, MissingFields];
 
 #[derive(Debug)]
 pub struct UnresolvedModule {
@@ -40,28 +40,9 @@ pub struct UnresolvedModule {
     pub candidate: String,
 }
 
-// Diagnostic: unresolved-extern-crate
-//
-// This diagnostic is triggered if rust-analyzer is unable to discover referred extern crate.
 #[derive(Debug)]
 pub struct UnresolvedExternCrate {
-    pub file: HirFileId,
-    pub item: AstPtr<ast::ExternCrate>,
-}
-
-impl Diagnostic for UnresolvedExternCrate {
-    fn code(&self) -> DiagnosticCode {
-        DiagnosticCode("unresolved-extern-crate")
-    }
-    fn message(&self) -> String {
-        "unresolved extern crate".to_string()
-    }
-    fn display_source(&self) -> InFile<SyntaxNodePtr> {
-        InFile::new(self.file, self.item.clone().into())
-    }
-    fn as_any(&self) -> &(dyn Any + Send + 'static) {
-        self
-    }
+    pub decl: InFile<AstPtr<ast::ExternCrate>>,
 }
 
 #[derive(Debug)]
diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index 373134f62..f7883c469 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -484,10 +484,12 @@ impl Module {
                 }
                 DefDiagnosticKind::UnresolvedExternCrate { ast } => {
                     let item = ast.to_node(db.upcast());
-                    sink.push(UnresolvedExternCrate {
-                        file: ast.file_id,
-                        item: AstPtr::new(&item),
-                    });
+                    acc.push(
+                        UnresolvedExternCrate {
+                            decl: InFile::new(ast.file_id, AstPtr::new(&item)),
+                        }
+                        .into(),
+                    );
                 }
 
                 DefDiagnosticKind::UnresolvedImport { id, index } => {