| /* |
| * Copyright (c) 2011, 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 An interface has a set of direct superinterfaces. |
| * An interface J is a superinterface of an interface I ff either J is a direct |
| * superinterface of I or J is a superinterface of a direct superinterface of I. |
| * @description Checks that it is a compile-time error if the implements clause of an interface is empty. |
| * @compile-error |
| * @author rodionov |
| * @reviewer kaigorodov |
| */ |
| |
| abstract class I implements { |
| } |
| |
| class C implements I { |
| } |
| |
| main() { |
| try { |
| I i1=new C(); |
| assert(i1!=null); |
| } catch(x) { |
| } |
| } |
| |
