// 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
///
/// @description Check that if type T0 not a subtype of a type T1, then instance
/// of T0 cannot be be used as a return value of type T1. Return value is tested.
/// @author sgrekhov@unipro.ru
/// @author ngl@unipro.ru
///
/// This test is generated from left_FutureOr_fail_A04.dart and 
/// return_value_fail_x01.dart.
/// Don't modify it. If you want to change this test, change one of the files 
/// above and then run generator.dart to regenerate the tests.


import "dart:async";

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

const t1Default = null;


Future? returnValueFunc() => t0Instance;
//                       ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

class ReturnValueTest {
  static Future? staticTestMethod() => t0Instance;
//                                 ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
  Future? testMethod() => t0Instance;
//                    ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified

  Future? get testGetter => t0Instance;
//                      ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}

main() {
  Future? returnValueLocalFunc() => t0Instance;
//                              ^^^^^^^^^^
// [analyzer] unspecified
// [cfe] unspecified
}