| // Copyright (c) 2019, 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 It is a compile-time error if the superclass of a class C is |
| /// specified as a superinterface of C. |
| /// @description Test checks that it is a compile-time error when a class has |
| /// the same class as superclass and interface. Test type aliases |
| /// @compile-error |
| /// @author sgrekhov@unipro.ru |
| |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| |
| abstract class A {} |
| |
| typedef AAlias = A; |
| |
| class C extends AAlias implements A {} |
| |
| main () { |
| new C(); |
| } |
