| // Copyright (c) 2021, 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 The modifier required is added as a built-in identifier. The |
| /// grammar of function types is extended to allow any named parameter |
| /// declaration to be prefixed by the required modifier (e.g. int Function(int, |
| /// {int? y, required int z}). |
| /// |
| /// @description Checks that the 'required' word cannot be used as a type name |
| /// @author sgrekhov@unipro.ru |
| |
| typedef required = int Function(Object a, Object b); |
| // ^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| |
| main() { |
| required? l; |
| //^^^^^^^^ |
| // [analyzer] unspecified |
| // [cfe] unspecified |
| } |
