/*
 * 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 DateTime subtract(Duration other)
 * Throws [Error] if [other] is [:null:].
 * @description Checks that an compile error appears if [object] is [:null:]
 * statically.
 * @author iarkh
 */

main() {
  DateTime dateTime = new DateTime(2000, 1, 1);
  dateTime.subtract(null);
//                  ^
// [analyzer] unspecified
// [cfe] unspecified

}