| // Copyright (c) 2017, 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. | |
| library test; | |
| typedef void F<T>(T t); | |
| class B<T> { | |
| T f(int x) => throw ''; | |
| } | |
| abstract class I<T> { | |
| T f(Object x); | |
| } | |
| abstract class C<T> extends B<F<T>> implements I<F<T>> {} | |
| void main() {} |