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// 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:
/// Right FutureOr: T1 is FutureOr<S1> and
/// either T0 <: Future<S1>
/// or T0 <: S1
/// or T0 is X0 and X0 has bound S0 and S0 <: T1
/// or T0 is X0 & S0 and S0 <: T1
/// @description Check that if a type T1 is FutureOr<S1> and a type T0 is not
/// a subtype of types Future<S1> or S1, then a type T0 is not a subtype of a
/// type T1.
/// @author
import "dart:async";
class S1 {
const S1();
class T0 {}
T0 t0Instance = new T0();
FutureOr<S1> t1Instance = new Future.value(new S1());
const t1Default = const S1();
//# @T0 = T0
//# @T1 = FutureOr<S1>