| // Copyright (c) 2016, 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 factories_test; |
| |
| import 'test_base.dart'; |
| |
| class A<T> { |
| factory A() { |
| return new B<T>(); |
| } |
| |
| factory A.named() { |
| return new A<T>.internal(); |
| } |
| |
| factory A.forward() = A<T>.internal; |
| |
| A.internal(); |
| } |
| |
| class B<T> extends A<T> { |
| B() : super.internal(); |
| } |
| |
| class X {} |
| |
| class Y {} |
| |
| main() { |
| expectTrue(new A<X>.named() is A<X>); |
| expectTrue(new A<X>.named() is! A<Y>); |
| expectTrue(new A<X>.forward() is A<X>); |
| expectTrue(new A<X>.forward() is! A<Y>); |
| expectTrue(new A<X>() is B<X>); |
| expectTrue(new A<X>() is! B<Y>); |
| expectTrue(new A<X>.named() is! B<X>); |
| expectTrue(new A<X>.forward() is! B<X>); |
| } |