| // Copyright (c) 2012, 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. |
| // Check that dart2js emits code for classes that implement another |
| // class. |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| class A { |
| factory A() => new B(); |
| foo() => 0; |
| } |
| |
| class B implements A { |
| foo() => 42; |
| } |
| |
| main() { |
| var a = new A(); |
| if (a is A) { |
| Expect.equals(42, a.foo()); |
| } else { |
| Expect.fail('Should not be here'); |
| } |
| } |
