// 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 It is a compile-time error for any type other than the types | |
/// int and double to attempt to extend, mix in or implement num. | |
/// @description Checks that a user-defined interface can not extend num. | |
/// @author iefremov | |
abstract class A extends num {} | |
// ^ | |
// [analyzer] unspecified | |
// [cfe] unspecified | |
class B implements A {} | |
// ^ | |
// [analyzer] unspecified | |
// [cfe] unspecified | |
main() { | |
new B(); | |
} |