| // 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. |
| // Dart test program for testing setting/getting of instance fields. |
| |
| import "package:expect/expect.dart"; |
| |
| class A { |
| int? x = 4; |
| A(this.x); |
| A.named([this.x]); |
| A.named2([this.x = 2]); |
| A.named3(); |
| } |
| |
| class B extends A { |
| B(x) : super(x + 10); |
| B.named_() : super.named(); |
| B.named(x) : super.named(x + 10); |
| B.named2_() : super.named2(); |
| B.named2(x) : super.named2(x + 10); |
| B.named3() : super.named3(); |
| } |
| |
| main() { |
| Expect.equals(0, new A(0).x); |
| Expect.equals(null, new A.named().x); |
| Expect.equals(1, new A.named(1).x); |
| Expect.equals(2, new A.named2().x); |
| Expect.equals(3, new A.named2(3).x); |
| Expect.equals(4, new A.named3().x); |
| |
| Expect.equals(10, new B(0).x); |
| Expect.equals(null, new B.named_().x); |
| Expect.equals(11, new B.named(1).x); |
| Expect.equals(2, new B.named2_().x); |
| Expect.equals(13, new B.named2(3).x); |
| Expect.equals(4, new B.named3().x); |
| } |