| /* |
| * Copyright (c) 2019, 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 Any use of a type [T] which is not well-bounded is a |
| * compile-time error. |
| * @description Checks that compile error is not thrown when non-function type |
| * alias with well bounded type parameter is declared |
| * @author iarkh@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=nonfunction-type-aliases |
| |
| class A<T extends A<T>> {} |
| |
| typedef B1<X> = A<X>; |
| typedef B2<X extends A<dynamic>> = A<X>; |
| typedef B3<X extends A<Null>> = A<X>; |
| typedef B4<X extends A<void>> = A<X>; |
| |
| main() { |
| } |
