// 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 Execution of a do statement of the form do s while (e); proceeds
 * as follows:
 *   The statement {s} is executed. Then, the expression e is evaluated to an
 * object o. Then, o is then subjected to boolean conversion, producing an
 * object r. If r is false, execution of the do statement is complete. If r is
 * true, then the do statement is re-executed recursively.
 * @description Checks that do body statement is enclosed in implicit extra
 * block.
 * @author ilya
 */
import '../../../Utils/expect.dart';

main() {
  var x, i = 0;

  do
    var x = i++;
  while (i < 5);

  Expect.isNull(x);
}
