Add tests and error messages

2023-03-11 04:10:09 +00:00 · 2023-03-11 04:10:09 +00:00 · 104aacb49f
commit 104aacb49f
parent 0308d4ad18
17 changed files with 339 additions and 14 deletions
--- a/compiler/rustc_ast_lowering/src/errors.rs
+++ b/compiler/rustc_ast_lowering/src/errors.rs
@ -347,3 +347,19 @@ pub struct TraitFnAsync {
    #[label]
    pub span: Span,
 }
+
+#[derive(Diagnostic)]
+pub enum BadReturnTypeNotation {
+    #[diag(ast_lowering_bad_return_type_notation_inputs)]
+    Inputs {
+        #[primary_span]
+        #[suggestion(code = "()", applicability = "maybe-incorrect")]
+        span: Span,
+    },
+    #[diag(ast_lowering_bad_return_type_notation_output)]
+    Output {
+        #[primary_span]
+        #[suggestion(code = "", applicability = "maybe-incorrect")]
+        span: Span,
+    },
+}