| // Copyright (c) 2026, 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. | |
| class const Self(); | |
| class Base { | |
| Base(int x); | |
| } | |
| class MyComponent(@Self() final int? x) extends Base { | |
| this : super(42); | |
| } |