| /* |
| * 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 an interface is a superinterface |
| * of itself. |
| * @description Checks that it is a compile-time error if a non-generic |
| * interface is a superinterface of itself. Test type alias |
| * @compile-error |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| |
| abstract class I implements IAlias {} |
| typedef IAlias = I; |
| |
| class A implements I {} |
| |
| main() { |
| try { |
| new A(); |
| } catch (e) {} |
| } |
| |