// Copyright (c) 2011, 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 Constructs a regular expression.
/// @description Checks that using a null pattern argument results in Error.
/// @author rodionov


main() {
  new RegExp(null);
//           ^^^^
// [analyzer] unspecified
// [cfe] unspecified
}