| // 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. |
| |
| // @dart = 2.7 |
| |
| import 'dart:async'; |
| import 'package:expect/expect.dart'; |
| |
| /*class: global#Future:checkedInstance*/ |
| |
| /*class: A:checks=[],instance*/ |
| class A<T> { |
| @pragma('dart2js:noInline') |
| m(o) => o is FutureOr<B<T>>; |
| } |
| |
| /*class: B:checkedInstance,checkedTypeArgument,checks=[],instance,typeArgument*/ |
| class B<T> {} |
| |
| /*class: C:checkedInstance,typeArgument*/ |
| class C {} |
| |
| /*class: D:checkedInstance,typeArgument*/ |
| class D {} |
| |
| main() { |
| Expect.isTrue(new A<C>().m(new B<C>())); |
| Expect.isFalse(new A<D>().m(new B<C>())); |
| } |
