| /* |
| * 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 Unless explicitly stated otherwise, all ordinary rules that apply |
| * to methods apply to abstract methods. |
| * It is a compile error if an instance method m1 overrides an instance member |
| * m2 and m1 has a greater number of required parameters than m2. |
| * @description Checks that a compile error is produced when an abstract |
| * method overrides another abstract method with the same name and a different |
| * number of required parameters. |
| * @compile-error |
| * @author rodionov |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| abstract class A { |
| f(var x); |
| } |
| |
| abstract class C extends A { |
| f(var x, var y); |
| } |
| |
| class D extends C { |
| f(var x, var y) {} |
| } |
| |
| main() { |
| Expect.throws(() => new D().f(2)); |
| |
| new D().f(2, 2); |
| } |
| |
