src/third_party/mozjs-45/js/src/tests/js1_5/Regress/regress-252892.js

/* -*- indent-tabs-mode: nil; js-indent-level: 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 = 252892;
var summary = 'for (var i in o) in heavyweight function f should define i in f\'s activation';
var actual = '';
var expect = '';

printBugNumber(BUGNUMBER);
printStatus (summary);

var status; 

var dodis;

function f1(o){for(var x in o)printStatus(o[x]); return x}
function f2(o){with(this)for(var x in o)printStatus(o[x]); return x}
function f2novar(o){with(this)for(x in o)printStatus(o[x]); return x}
function f3(i,o){for(var x in o)printStatus(o[x]); return x}
function f4(i,o){with(this)for(var x in o)printStatus(o[x]); return x}

var t=0;
function assert(c)
{
  ++t;

  status = summary + ' ' + inSection(t);
  expect = true;
  actual = c;

  if (!c)
  {
    printStatus(t + " FAILED!");
  }
  reportCompare(expect, actual, summary);
}

assertEq(f1([]), undefined);

assertEq(f1(['first']), "0");

assertEq(f2([]), undefined);

assertEq(f2(['first']), "0");

assertEq(f3(42, []), undefined);

assertEq(f3(42, ['first']), "0");

assertEq(f4(42, []), undefined);

assertEq(f4(42, ['first']), "0");

this.x = 41;

assertEq(f2([]), undefined);

assertEq(f2novar([]), 41);

assertEq(f2(['first']), undefined);

assertEq(f2novar(['first']), "0");

if (typeof reportCompare === "function")
  reportCompare(true, true);