// 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 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.


Null t0Instance = null;
Null t1Instance = null;

const t1Default = null;


Null returnValueFunc() => t0Instance;

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

  Null testMethod() => t0Instance;

  Null get testGetter => t0Instance;
}

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

  returnValueFunc();
  returnValueLocalFunc();

  ReturnValueTest.staticTestMethod();

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

}