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