| /* |
| * Copyright (c) 2018, 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 We say that a type T0 is a subtype of a type T1 (written T0 <: T1) |
| * when: |
| * Left Bottom: if T0 is Never then T0 <: T1 |
| * @description Check that if type T0 is Never then T0 is a subtype of T1 |
| * @author sgrekhov@unipro.ru |
| */ |
| // SharedOptions=--enable-experiment=non-nullable,nonfunction-type-aliases |
| import "../../../../Utils/expect.dart"; |
| class T1 {} |
| |
| class C<X extends T1> {} |
| void foo<X extends T1>() {} |
| |
| typedef Neverland = Never; |
| |
| main() { |
| Expect.isTrue(C<Neverland>() is C<Never>); |
| void x2 = foo<Neverland>(); |
| } |
