LanguageFeatures/Subtyping/dynamic/generated/right_FutureOr_return_value_A04_t01.dart

/*
 * 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 S1 and a type T0 is X0 and X0 has
 * bound S0 and S0 <: S1, then a type T0 is a subtype of a type T1.
 * @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 right_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 '../../utils/common.dart';
import "dart:async";

class S1 {}
class S0 extends S1 {
}
class X0 extends S0 {
}

X0 t0Instance = new X0();
FutureOr<S1> t1Instance = new S1();




FutureOr<S1> returnValueFunc() => forgetType(t0Instance);

class ReturnValueTest {
  static FutureOr<S1> staticTestMethod() => forgetType(t0Instance);

  FutureOr<S1> testMethod() => forgetType(t0Instance);

  FutureOr<S1> get testGetter => forgetType(t0Instance);
}

class ReturnValueGen<X> {
  X testMethod() => forgetType(t0Instance);
  X get testGetter => forgetType(t0Instance);
}


main() {
  FutureOr<S1> returnValueLocalFunc() => forgetType(t0Instance);

  returnValueFunc();
  returnValueLocalFunc();

  ReturnValueTest.staticTestMethod();

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

  // Test type parameters

  //# <-- NotGenericFunctionType
  new ReturnValueGen<FutureOr<S1>>().testMethod();
  new ReturnValueGen<FutureOr<S1>>().testGetter;
  //# -->
}