// 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 with [Never] argument is exported from
 * opted-in library to legacy library and then back to the opted in code, it
 * retains its status and so never be can called.
 * @author iarkh@unipro.ru
 */
// Requirements=nnbd-weak

import "exports_A01_opted_out_lib.dart";

main() {
  test_never_arg(1);
//               ^
// [analyzer] unspecified
// [cfe] unspecified

  test_never_arg(null);
//               ^^^^
// [analyzer] unspecified
// [cfe] unspecified
}