| /* |
| * 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. |
| */ |
| /** |
| * @assertion Let S be a class, M be a mixin with required superinterfaces |
| * T1, . . . , Tn, combined superinterface MS, implemented interfaces |
| * I1, . . . , Ik and members as mixin member declarations, and let N be a name. |
| * It is a compile-time error to apply M to S if S does not implement, directly |
| * or indirectly, all of T1, . . . , Tn. |
| * @description Checks that it is a compile error if S does not implement |
| * all the direct superinterfaces of M |
| * @compile-error |
| * @author sgrekhov@unipro.ru |
| */ |
| |
| abstract class A { |
| int get a; |
| } |
| |
| abstract class B { |
| int get b; |
| } |
| |
| abstract class M implements A, B { |
| } |
| |
| class S { |
| } |
| |
| class C extends S with M { |
| } |
| |
| main() { |
| new C(); |
| } |