/*
 * 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:
 * Function Type/Function: T0 is a function type and T1 is Function
 * @description Check that if type T0 is a function type and T1 is Function then
 * T0 is a subtype of T1. Test void function with required arguments
 * @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 function_type_function_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';
// SharedOptions=--enable-experiment=non-nullable
class C {}

typedef void T0(C c);

void t0Instance(C c) {}
Function t1Instance = () {};

void foo() {}
const t1Default = foo;


Function returnValueFunc() => forgetType(t0Instance);

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

  Function testMethod() => forgetType(t0Instance);

  Function get testGetter => forgetType(t0Instance);
}

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


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

  returnValueFunc();
  returnValueLocalFunc();

  ReturnValueTest.staticTestMethod();

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

  // Test type parameters

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