| // Copyright (c) 2013, 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. |
| // Dart test program for constructors and initializers. |
| |
| // @dart = 2.9 |
| |
| // Check function subtyping of type arguments. |
| |
| import 'package:expect/expect.dart'; |
| |
| class C<T> {} |
| |
| class I {} |
| |
| class J extends I {} |
| |
| typedef J f1(); |
| typedef I f2(); |
| |
| main() { |
| Expect.isTrue(new C<f1>() is C<f2>); |
| Expect.isFalse(new C<f2>() is C<f1>); |
| } |