| // 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. | |
| // SharedOptions=--enable-experiment=sealed-class | |
| sealed class SealedClass {} | |
| abstract class A extends SealedClass {} | |
| class B extends SealedClass {} | |
| sealed mixin SealedMixin {} | |
| class C extends SealedClass with SealedMixin {} | |
| class D with SealedMixin {} |