| // 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. | |
| class C { | |
| int value; | |
| C() : value = 0 {} | |
| init() { | |
| value = 0; | |
| } | |
| int get id => value; | |
| void set id(int v) { | |
| this.value = v; | |
| } | |
| } | |
| extension Ext on C { | |
| int get id => this.value + 1; | |
| } | |
| test() { | |
| C c = C(); | |
| Ext(c).id++; | |
| } | |
| main() {} |