// Copyright (c) 2020, 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 If an unmigrated library re-exports a migrated library, the
/// re-exported symbols retain their migrated status (that is, downstream
/// migrated libraries will see their migrated types).
/// @description Check that if function typedef which returns nullable value is
/// exported from opted-in library to legacy library and then back to the opted
/// in code, it retains its status. Typedef is in the form [typedef
/// <typeIdentifier> <typeParameters> = <functionType>].
/// @author iarkh@unipro.ru

// Requirements=nnbd-weak

import "dart:async";
import "../../../Utils/expect.dart";
import "exports_A01_opted_out_lib.dart";

typedef exp_getNullableInt      = int? Function();
typedef exp_getNullableObject   = Object? Function();
typedef exp_getDynamic          = dynamic Function();
typedef exp_getNullableFunction = Function? Function();
typedef exp_getNull             = Null Function();
typedef exp_getFutureOr         = FutureOr Function();

main() {
  Expect.equals(exp_getNullableInt,      def_getNullableInt);
  Expect.equals(exp_getNullableObject,   def_getNullableObject);
  Expect.equals(exp_getDynamic,          def_getDynamic);
  Expect.equals(exp_getNullableFunction, def_getNullableFunction);
  Expect.equals(exp_getNull,             def_getNull);
  Expect.equals(exp_getFutureOr,         def_getFutureOr);
}