1 files changed, 35 insertions, 0 deletions
diff --git a/src/test/compile-fail/impl-unused-tps-inherent.rs b/src/test/compile-fail/impl-unused-tps-inherent.rs
new file mode 100644
index 00000000000..3803bb9b045
--- /dev/null
+++ b/src/test/compile-fail/impl-unused-tps-inherent.rs
@@ -0,0 +1,35 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+struct MyType;
+
+struct MyType1<T>(T);
+
+trait Bar {
+    type Out;
+}
+
+impl<T> MyType {
+    //~^ ERROR  the type parameter `T` is not constrained
+}
+
+impl<T> MyType1<T> {
+    // OK, T is used in `Foo<T>`.
+}
+
+impl<T,U> MyType1<T> {
+    //~^ ERROR  the type parameter `U` is not constrained
+}
+
+impl<T,U> MyType1<T> where T: Bar<Out=U> {
+    // OK, T is used in `Foo<T>`.
+}
+
+fn main() { }