| // Copyright (c) 2011, 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. |
| |
| interface A default B { |
| A(int x, int y); |
| } |
| |
| interface X default B { |
| X(int x, int y); |
| } |
| |
| class XImpl implements X { |
| final int x; |
| final int y; |
| XImpl(this.x, this.y); |
| } |
| |
| // new A invokes B constructor because B implements A. |
| class B implements A { |
| final int x; |
| final int y; |
| |
| B(this.x, this.y); |
| // This factory will never be invoked. |
| // TODO(ahe): Is this a compile time error? |
| factory A(int a, int b) { return new B(0, 0); } |
| |
| factory X(int a, int b) { return new XImpl(a * 10, b * 10); } |
| } |
| |
| main() { |
| var a = new A(1, 2); |
| // Check that constructor B is invoked and not factory A. |
| Expect.equals(1, a.x); |
| Expect.equals(2, a.y); |
| |
| var x = new X(11, 22); |
| // Check that factory is invoked. |
| Expect.equals(110, x.x); |
| Expect.equals(220, x.y); |
| } |