regress-152646.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 July 2002

 * SUMMARY: Testing expressions with large numbers of parentheses

 * See http://bugzilla.mozilla.org/show_bug.cgi?id=152646

*/

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

var UBound = 0;

var BUGNUMBER = 152646;

var summary = 'Testing expressions with large numbers of parentheses';

var status = '';

var statusitems = [];

var actual = '';

var actualvalues = [];

var expect= '';

var expectedvalues = [];

/*

 * Just seeing that we don't crash when compiling this assignment -

 * 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 = (((0)));' The expected value for this after eval() is 0.

*/

status = inSection(1);

var sLeft = '((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((';

sLeft += sLeft;

sLeft += sLeft;

sLeft += sLeft;

sLeft += sLeft;

sLeft += sLeft;

var sRight = '))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';

sRight += sRight;

sRight += sRight;

sRight += sRight;

sRight += sRight;

sRight += sRight;

var sEval = 'actual = ' + sLeft + '0' + sRight;

try

  eval(sEval);

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 = 0;

expect = 0;

addThis();

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

test();

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

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]);