// 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 A class has a set of direct superinterfaces. This set includes
/// the interface of its superclass and the interfaces specified in the
/// implements clause of the class.
/// interfaces:
///   implements typeList
/// ;
/// @description Checks that it is a compile-time error if the implements
/// clause of a class does not list any types.
/// @author rodionov

class A implements {}
//                 ^
// [analyzer] unspecified
// [cfe] unspecified

main() {
  new A();
}