// 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:
/// Reflexivity: T0 and T1 are the same type.
/// @description Check that if type T1 and T0 are both Null then T0 is a subtype
/// of a type T1
/// @author sgrekhov@unipro.ru
///
/// @description Check that if type T0 is a subtype of a type T1, then instance
/// of T0 can be used as a return value of type T1
/// @author sgrekhov@unipro.ru
///
/// This test is generated from reflexivity_A04.dart and 
/// return_value_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 '../../utils/common.dart';

Null t0Instance = null;
Null t1Instance = null;

const t1Default = null;


Null returnValueFunc() => forgetType(t0Instance);

class ReturnValueTest {
  static Null staticTestMethod() => forgetType(t0Instance);

  Null testMethod() => forgetType(t0Instance);

  Null get testGetter => forgetType(t0Instance);
}

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


main() {
  Null returnValueLocalFunc() => forgetType(t0Instance);

  returnValueFunc();
  returnValueLocalFunc();

  ReturnValueTest.staticTestMethod();

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

  // Test type parameters

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