1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/rustc_ast_passes/src/errors.rs b/compiler/rustc_ast_passes/src/errors.rs
index 8e53e600f7a..2373a7d223e 100644
--- a/compiler/rustc_ast_passes/src/errors.rs
+++ b/compiler/rustc_ast_passes/src/errors.rs
@@ -823,3 +823,12 @@ pub(crate) struct DuplicatePreciseCapturing {
     #[label]
     pub bound2: Span,
 }
+
+#[derive(Diagnostic)]
+#[diag(ast_passes_extern_without_abi)]
+#[help]
+pub(crate) struct MissingAbi {
+    #[primary_span]
+    #[suggestion(code = "extern \"<abi>\"", applicability = "has-placeholders")]
+    pub span: Span,
+}