/*
 * 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> and S0
 * are subtypes of a type T1, then a type T0 is a subtype of a type T1. Case
 * when an instance of T0 is an instance of Future<S0> type and S0 is a generic
 * type
 * @author sgrekhov@unipro.ru
 */
/**
 * @description Check that if type T0 is a subtype of a type T1, then instance
 * of T0 can be be used as a return value of type T1
 * @author sgrekhov@unipro.ru
 */
/*
 * This test is generated from left_FutureOr_A04.dart and 
 * return_value_x01.dart.
 * Don't modify it. If you want to change this file, change one of the files 
 * above and then run generator.dart to regenerate the tests.
 */


import "dart:async";

class A {}
class B extends A {}
class C<X> {}
class S0<X> extends C<X> {}

FutureOr<S0<B>> t0Instance = new Future<S0<B>>.value(new S0<B>());
FutureOr<C<A>> t1Instance = new Future<C<A>>.value(new C<A>());


FutureOr<C<A>> returnValueFunc() => t0Instance;

class ReturnValueTest {
  static FutureOr<C<A>> staticTestMethod() => t0Instance;

  FutureOr<C<A>> testMethod() => t0Instance;

  FutureOr<C<A>> get testGetter => t0Instance;
}

main() {
  FutureOr<C<A>> returnValueLocalFunc() => t0Instance;

  returnValueFunc();
  returnValueLocalFunc();

  ReturnValueTest.staticTestMethod();

  new ReturnValueTest().testMethod();
  new ReturnValueTest().testGetter;

}