| // Copyright (c) 2016, 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 'package:expect/expect.dart'; | 
 |  | 
 | class BaseMixin { | 
 |   method(x) { | 
 |     print(x); | 
 |     return x + 'error'; | 
 |   } | 
 |  | 
 |   set setter(x) { | 
 |     print(x); | 
 |   } | 
 | } | 
 |  | 
 | class Base { | 
 |   var field; | 
 |  | 
 |   method(x) { | 
 |     print(x); | 
 |     return x; | 
 |   } | 
 |  | 
 |   set setter(x) { | 
 |     print(x); | 
 |     field = x; | 
 |   } | 
 | } | 
 |  | 
 | class Mixin extends BaseMixin { | 
 |   method(x) { | 
 |     return super.method(x + 'Mixin'); | 
 |   } | 
 |  | 
 |   set setter(x) { | 
 |     super.setter = x + 'Mixin'; | 
 |   } | 
 | } | 
 |  | 
 | class Sub extends Base with Mixin {} | 
 |  | 
 | main() { | 
 |   var object = new Sub(); | 
 |   Expect.isTrue(object.method('x') == 'xMixin'); | 
 |   object.setter = 'y'; | 
 |   Expect.isTrue(object.field == 'yMixin'); | 
 | } |