| /* |
| * 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 FutureOr: T0 is FutureOr<S0> |
| * and Future<S0> <: T1 |
| * and S0 <: T1 |
| * @description Check that if a type T0 is FutureOr<S0> and Future<S0> is a |
| * subtype of T1 but S0 is not a subtype of a type T1, then a type T0 is not a |
| * subtype of a type T1. |
| * @author ngl@unipro.ru |
| */ |
| |
| import "dart:async"; |
| |
| class S0 {} |
| |
| FutureOr<S0> t0Instance = new S0(); |
| Future<S0> t1Instance = new Future<S0>.value(new S0()); // S0 is not a subtype of T1 (T1 is Future<S0>) |
| |
| //# @T0 = FutureOr<S0> |
| //# @T1 = Future<S0> |
