| // 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 to declare an optional parameter in an |
| /// operator. |
| /// @description Checks that a compile-time error is produced if a user-defined |
| /// operator []= specifies one optional positional parameter in addition to the |
| /// two required ones. |
| /// @compile-error |
| /// @author rodionov |
| |
| |
| class C { |
| operator []=(var x, var y, [var o]) {} |
| } |
| |
| main() { |
| C c = new C(); |
| c[0] = new C(); |
| } |
