regress-192414.js - mozsearch

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/* -*- 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/. */

/*

 * Date:    08 February 2003

 * SUMMARY: Parser recursion should check stack overflow

 * See http://bugzilla.mozilla.org/show_bug.cgi?id=192414

*/

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

var UBound = 0;

var BUGNUMBER = 192414;

var summary = 'Parser recursion should check stack overflow';

var status = '';

var statusitems = [];

var actual = '';

var actualvalues = [];

var expect= '';

var expectedvalues = [];

/*

 * We will form an eval string to set the result-variable |actual|.

 * To get a feel for this, suppose N were 3. Then the eval string is

 * 'actual = (1&(1&(1&1)));' The expected value after eval() is 1.

*/

status = inSection(1);

var N = 10000;

var left = repeat_str('(1&', N);

var right = repeat_str(')', N);

var str = 'actual = '.concat(left, '1', right, ';');

try

  eval(str);

catch (e)

/*

   * An exception during this eval is OK, as the runtime can throw one

   * in response to too deep recursion. We haven't crashed; good!

*/

  actual = 1;

expect = 1;

addThis();

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

test();

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

function repeat_str(str, repeat_count)

  var arr = new Array(--repeat_count);

  while (repeat_count != 0)

    arr[--repeat_count] = str;

  return str.concat.apply(str, arr);

function addThis()

  statusitems[UBound] = status;

  actualvalues[UBound] = actual;

  expectedvalues[UBound] = expect;

  UBound++;

function test()

  printBugNumber(BUGNUMBER);

  printStatus(summary);

  for (var i=0; i<UBound; i++)

    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);