| // Copyright (c) 2020, 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. |
| |
| import 'value_class_support_lib.dart'; |
| |
| class Animal { |
| final int numberOfLegs; |
| } |
| |
| @valueClass |
| class Cat implements Animal { |
| final int numberOfLegs; |
| final int numberOfWhiskers; |
| } |
| |
| abstract class Animal2 { |
| int get numberOfLegs; |
| } |
| |
| @valueClass |
| class Cat2 implements Animal2 { |
| final int numberOfLegs; |
| final int numberOfWhiskers; |
| } |
| |
| |
| main() { |
| Cat firstCat = Cat(numberOfLegs: 4, numberOfWhiskers: 10); |
| Cat secondCat = Cat(numberOfLegs: 4, numberOfWhiskers: 10); |
| Cat thirdCat = Cat(numberOfLegs: 4, numberOfWhiskers: 0); |
| |
| expect(true, firstCat == secondCat); |
| expect(false, firstCat == thirdCat); |
| |
| expect(true, firstCat.hashCode == secondCat.hashCode); |
| expect(false, firstCat.hashCode == thirdCat.hashCode); |
| |
| Cat2 firstCat2 = Cat2(numberOfLegs: 4, numberOfWhiskers: 10); |
| Cat2 secondCat2 = Cat2(numberOfLegs: 4, numberOfWhiskers: 10); |
| Cat2 thirdCat2 = Cat2(numberOfLegs: 4, numberOfWhiskers: 0); |
| |
| expect(true, firstCat2 == secondCat2); |
| expect(false, firstCat2 == thirdCat2); |
| |
| expect(true, firstCat2.hashCode == secondCat2.hashCode); |
| expect(false, firstCat2.hashCode == thirdCat2.hashCode); |
| } |
| |
| expect(Object? expected, Object? actual) { |
| if (expected != actual) throw 'Expected=$expected, actual=$actual'; |
| } |