| // Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /// @description Regression test for issue 33421 (Dart does not throw error when |
| /// type parameter is a supertype of its upper bound): checks that two class type |
| /// parameters cannot extend each other. |
| /// @Issue 33421 |
| /// @author iarkh@unipro.ru |
| |
| class A<X extends X1, X1 extends X> {} |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() {} |
