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Diffstat (limited to 'crates/ide-diagnostics/src/handlers/macro_error.rs')
-rw-r--r--crates/ide-diagnostics/src/handlers/macro_error.rs17
1 files changed, 17 insertions, 0 deletions
diff --git a/crates/ide-diagnostics/src/handlers/macro_error.rs b/crates/ide-diagnostics/src/handlers/macro_error.rs
index b6571e02ef..7acbcad22c 100644
--- a/crates/ide-diagnostics/src/handlers/macro_error.rs
+++ b/crates/ide-diagnostics/src/handlers/macro_error.rs
@@ -327,4 +327,21 @@ fn it_works() {
"#,
);
}
+
+ #[test]
+ fn unimplemented_builtin_macro() {
+ check_diagnostics(
+ r#"
+#[rustc_builtin_macro]
+macro_rules! unimplemented_builtin_macro {
+ // ^^^^^^^^^^^^^^^^^^^^^^^^^^^ weak: unimplemented built-in macro
+ () => {};
+}
+
+ #[unimplemented_builtin_macro]
+// ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: this built-in macro is not implemented
+struct Foo;
+ "#,
+ );
+ }
}