| // 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. | |
| import 'package:expect/expect.dart'; | |
| bool f<T, S>(T a, S b) => a is S; | |
| typedef bool F<P, Q>(P a, Q b); | |
| class B<X, Y> { | |
| F<X, Y> c; | |
| B() : c = f; | |
| } | |
| main() { | |
| Expect.isTrue(new B<int, int>().c(0, 0)); | |
| Expect.isFalse(new B<int, String>().c(0, '')); | |
| } |