| /* |
| * 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. |
| * @author ngl@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_A02.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 '../../utils/common.dart'; |
| import "dart:async"; |
| |
| class C { |
| const C(); |
| } |
| class S0 extends C {} |
| |
| FutureOr<S0> t0Instance = new Future<S0>.value(new S0()); |
| FutureOr<C> t1Instance = new Future<C>.value(new C()); |
| |
| const t1Default = const C(); |
| |
| |
| |
| |
| FutureOr<C> returnValueFunc() => forgetType(t0Instance); |
| |
| class ReturnValueTest { |
| static FutureOr<C> staticTestMethod() => forgetType(t0Instance); |
| |
| FutureOr<C> testMethod() => forgetType(t0Instance); |
| |
| FutureOr<C> get testGetter => forgetType(t0Instance); |
| } |
| |
| class ReturnValueGen<X> { |
| X testMethod() => forgetType(t0Instance); |
| X get testGetter => forgetType(t0Instance); |
| } |
| |
| |
| main() { |
| FutureOr<C> returnValueLocalFunc() => forgetType(t0Instance); |
| |
| returnValueFunc(); |
| returnValueLocalFunc(); |
| |
| ReturnValueTest.staticTestMethod(); |
| |
| new ReturnValueTest().testMethod(); |
| new ReturnValueTest().testGetter; |
| |
| // Test type parameters |
| |
| //# <-- NotGenericFunctionType |
| new ReturnValueGen<FutureOr<C>>().testMethod(); |
| new ReturnValueGen<FutureOr<C>>().testGetter; |
| //# --> |
| } |