| /* |
| * 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 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 and overriding |
| * methods have different default values for their optional parameter. Test type |
| * aliases |
| * @issue 27476 |
| * @static-warning |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| class A { |
| foo([x = '']) {} |
| } |
| |
| typedef AAlias = A; |
| |
| class C extends AAlias { |
| foo([x = 1]) { /// static type warning |
| } |
| } |
| |
| main() { |
| new A().foo(2); |
| new C().foo(1); |
| } |
