Language/Overview/Scoping/conflicting_names_t28.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 It is a compile-time error if there is more than one entity 
 * with the same name declared in the same scope.
 * Dart is lexically scoped. Scopes may nest. A name or declaration d is 
 * available in scope S if d is in the namespace induced by S or if d is 
 * available in the lexically enclosing scope of S. We say that a name or 
 * declaration d is in scope if d is available in the current scope.
 * @description Checks that a nested scope has access to names from enclosing 
 * scopes.
 * @author msyabro
 */
import "../../../Utils/expect.dart";

var x;

main() {
  func (p) {Expect.equals(p, x);};
  x = 1;
  () {
    x = 2;
    func(2);
    {
      x = 3;
      func(3);
      () {
        x = 4;
        func(4);
        {
          x = 5;
          func(5);
        }
      } ();
    }
  }();
}