Language/Overview/Scoping/hiding_declaration_t15.dart

// 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 If a declaration d named n is in the namespace induced by a 
 * scope S, then d hides any declaration named n that is available in the 
 * lexically enclosing scope of S.
 * @description Checks that no static warning is produced if a for loop variable
 * shadows another local variable declared in an enclosing lexical scope.
 * @author iefremov
 */
import "../../../Utils/expect.dart";

var flag = false;

once() {
  if (flag) {
    return flag;
  }
  flag = true;
  return false;
}

main() {
  var x = 1;
  for (var x = 42; once(); );
  Expect.equals(1, x);
}