| // Copyright (c) 2022, 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. |
| |
| // Allow interface classes to be implemented by multiple classes outside its |
| // library. |
| |
| import 'package:expect/expect.dart'; |
| import 'interface_class_implement_lib.dart'; |
| |
| abstract class AOutside implements InterfaceClass {} |
| |
| class AOutsideImpl implements AOutside { |
| int foo = 1; |
| } |
| |
| class DoesNotPreventExtension extends AOutsideImpl {} |
| |
| class BOutside implements InterfaceClass { |
| int foo = 1; |
| } |
| |
| enum EnumOutside implements ClassForEnum { x } |
| |
| main() { |
| Expect.equals(1, AOutsideImpl().foo); |
| Expect.equals(1, DoesNotPreventExtension().foo); |
| Expect.equals(1, BOutside().foo); |
| Expect.equals(0, EnumOutside.x.index); |
| } |