// 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";

FutureOr t0Instance = 42;
Future t1Instance = Future.value(42);

const t1Default = null;

//# @T0 = FutureOr
//# @T1 = Future?