| // Copyright (c) 2018, 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 A mixin declaration introduces a mixin and an interface, but not a |
| /// class. |
| /// |
| /// @description Checks that a mixin declaration introduces an interface and |
| /// therefore it cannot be extended. |
| /// @compile-error |
| /// @author sgrekhov@unipro.ru |
| |
| import "../../Utils/expect.dart"; |
| |
| class C { |
| String get g => "C.g"; |
| } |
| |
| mixin M on C { |
| String get g => "M.g"; |
| } |
| |
| class MA extends M { |
| String get g => "MA.g"; |
| } |
| |
| main() { |
| MA m = new MA(); |
| Expect.equals("MA.g", m.g); |
| } |
