| // 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. |
| |
| // @dart = 2.9 |
| |
| /// @assertion It is a compile-time error if the name of a named |
| /// optional parameter begins with an _ character. |
| /// @description Checks that it is a compile-time error if the name of a named |
| /// optional parameter begins with an '_' character. |
| /// @author rodionov |
| /// @reviewer kaigorodov |
| |
| |
| class A { |
| var _p; |
| A({this._p: ""}) { |
| // ^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| print(_p); |
| } |
| } |
| |
| main() { |
| try { |
| new A(_p: "Optional parameters names must not begin with an underscore!"); |
| } catch (x) {} |
| } |