blob: 461b05ed5064314ef644d1d55503987fbd9ba98a [file] [log] [blame]
* 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 S0 type.
* @author
* @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
* This test is generated from left_FutureOr_A01.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 C {}
class S0 extends C {}
FutureOr<S0> t0Instance = new S0();
FutureOr<C> t1Instance = new Future<C>.value(new C());
FutureOr<C> returnValueFunc() => t0Instance;
class ReturnValueTest {
static FutureOr<C> staticTestMethod() => t0Instance;
FutureOr<C> testMethod() => t0Instance;
FutureOr<C> get testGetter => t0Instance;
main() {
FutureOr<C> returnValueLocalFunc() => t0Instance;
new ReturnValueTest().testMethod();
new ReturnValueTest().testGetter;