The Tor Browser / file revision

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 //-----------------------------------------------------------------------------

 var BUGNUMBER = 372331;

 var summary = 'for-in should not bind name too early';

 var actual = '';

 var expect = '';

 //-----------------------------------------------------------------------------

 test();

 //-----------------------------------------------------------------------------

 function test()

 {

   enterFunc ('test');

   printBugNumber(BUGNUMBER);

   printStatus (summary);

   var index;

   var obj = { index: 1 };

   expect = 'No Error';

   actual = 'No Error';

   function gen()

   {

     delete obj.index;

     yield 2;

   }

   with (obj) {

     for (index in gen());

   }

   try

   {

     if ('index' in obj)

       throw "for-in binds name to early";

     if (index !== 2)

       throw "unexpected value of index: "+index;

   }

   catch(ex)

   {

     actual = ex + '';

   }

   reportCompare(expect, actual, summary);

   exitFunc ('test');

 }