/*
 * 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 nullable type alias exported from opted-in library to
 * legacy library and then back to the opted in code retains its status.
 * @author iarkh@unipro.ru
 */
// SharedOptions=--enable-experiment=non-nullable
// Requirements=nnbd-strong

import "dart:async";
import "../../Utils/expect.dart";
import "exports_A01_legacy_aliases_lib.dart";

typedef exp_A                                              = A?         ;
typedef exp_Int                                            = int?       ;
typedef exp_Function                                       = Function?  ;
typedef exp_Object                                         = Object?    ;
typedef exp_Dynamic                                        = dynamic    ;
typedef exp_Null                                           = Null       ;
typedef exp_FutureOr                                       = FutureOr   ;
typedef exp_FutureOrFutureOr<T extends FutureOr<FutureOr>> = FutureOr<T>;

main() {
  Expect.equals(typeOf<exp_A>(),                typeOf<NullableAAlias>()       );
  Expect.equals(typeOf<exp_Int>(),              typeOf<NullableIntAlias>()     );
  Expect.equals(typeOf<exp_Function>(),         typeOf<NullableFunctionAlias>());
  Expect.equals(typeOf<exp_Object>(),           typeOf<NullableObjectAlias>()  );
  Expect.equals(typeOf<exp_Dynamic>(),          typeOf<DynamicAlias>()         );
  Expect.equals(typeOf<exp_Null>(),             typeOf<NullAlias>()            );
  Expect.equals(typeOf<exp_FutureOr>(),         typeOf<FutureOrAlias>()        );
  Expect.equals(typeOf<exp_FutureOrFutureOr>(), typeOf<FutureOrFutureOrAlias>());
}