| /* |
| * 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 Unless explicitly stated otherwise, all ordinary rules that apply |
| * to methods apply to abstract methods. |
| * 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 an abstract method |
| * overrides an instance method and has a different default value for its |
| * optional parameter. Test type aliases |
| * |
| * See https://github.com/dart-lang/sdk/issues/34437#issuecomment-432093691 |
| * |
| * @issue 27476 |
| * @static-warning |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| class A { |
| foo([x = 1]) {} |
| } |
| typedef AAlias = A; |
| |
| class C extends AAlias { |
| foo([x = '']); /// static type warning |
| } |
| |
| main() { |
| new C().foo(1); |
| } |
