| // 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 static warning if an instance method m1 overrides an |
| * instance member m2, the signature of m2 explicitly specifies a default |
| * value for a formal parameter p and the signature of m1 specifies a different |
| * default value for p. |
| * @description Checks that it is a static warning if overridden method |
| * explicitly specifies a default non-null value for its optional parameter and |
| * overriding method does not. |
| * @issue 27476 |
| * @author msyabro |
| */ |
| |
| class A { |
| foo([x = 0]) {} |
| } |
| |
| class C extends A { |
| foo([x]) { |
| } |
| } |
| |
| main() { |
| new A().foo(2); |
| new C().foo(1); |
| } |