| // 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 A new primitive type Never. This type is denoted by the built-in |
| * type declaration Never declared in dart:core. |
| * |
| * @description Check new primitive type Never |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| // Requirements=nnbd-weak |
| import "../../../../Utils/expect.dart"; |
| |
| typedef Neverland = Never; |
| |
| main() { |
| Object? o; |
| Expect.isFalse(o is Neverland); |
| } |
