1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/on-unimplemented/parent-label.rs b/src/test/ui/on-unimplemented/parent-label.rs
new file mode 100644
index 000000000..b65f64968
--- /dev/null
+++ b/src/test/ui/on-unimplemented/parent-label.rs
@@ -0,0 +1,27 @@
+// Test scope annotations from `parent_label` parameter
+
+#![feature(rustc_attrs)]
+
+#[rustc_on_unimplemented(parent_label = "in this scope")]
+trait Trait {}
+
+struct Foo;
+
+fn f<T: Trait>(x: T) {}
+
+fn main() {
+    let x = || {
+        f(Foo {}); //~ ERROR the trait bound `Foo: Trait` is not satisfied
+        let y = || {
+            f(Foo {}); //~ ERROR the trait bound `Foo: Trait` is not satisfied
+        };
+    };
+
+    {
+        {
+            f(Foo {}); //~ ERROR the trait bound `Foo: Trait` is not satisfied
+        }
+    }
+
+    f(Foo {}); //~ ERROR the trait bound `Foo: Trait` is not satisfied
+}