js/src/tests/js1_5/Regress/regress-192414.js

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     2 /* This Source Code Form is subject to the terms of the Mozilla Public
     3  * License, v. 2.0. If a copy of the MPL was not distributed with this
     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     6 /*
     7  *
     8  * Date:    08 February 2003
     9  * SUMMARY: Parser recursion should check stack overflow
    10  *
    11  * See http://bugzilla.mozilla.org/show_bug.cgi?id=192414
    12  *
    13  */
    14 //-----------------------------------------------------------------------------
    15 var UBound = 0;
    16 var BUGNUMBER = 192414;
    17 var summary = 'Parser recursion should check stack overflow';
    18 var status = '';
    19 var statusitems = [];
    20 var actual = '';
    21 var actualvalues = [];
    22 var expect= '';
    23 var expectedvalues = [];
    25 /*
    26  * We will form an eval string to set the result-variable |actual|.
    27  * To get a feel for this, suppose N were 3. Then the eval string is
    28  * 'actual = (1&(1&(1&1)));' The expected value after eval() is 1.
    29  */
    30 status = inSection(1);
    31 var N = 10000;
    32 var left = repeat_str('(1&', N);
    33 var right = repeat_str(')', N);
    34 var str = 'actual = '.concat(left, '1', right, ';');
    35 try
    36 {
    37   eval(str);
    38 }
    39 catch (e)
    40 {
    41   /*
    42    * An exception during this eval is OK, as the runtime can throw one
    43    * in response to too deep recursion. We haven't crashed; good!
    44    */
    45   actual = 1;
    46 }
    47 expect = 1;
    48 addThis();
    52 //-----------------------------------------------------------------------------
    53 test();
    54 //-----------------------------------------------------------------------------
    58 function repeat_str(str, repeat_count)
    59 {
    60   var arr = new Array(--repeat_count);
    61   while (repeat_count != 0)
    62     arr[--repeat_count] = str;
    63   return str.concat.apply(str, arr);
    64 }
    67 function addThis()
    68 {
    69   statusitems[UBound] = status;
    70   actualvalues[UBound] = actual;
    71   expectedvalues[UBound] = expect;
    72   UBound++;
    73 }
    76 function test()
    77 {
    78   enterFunc('test');
    79   printBugNumber(BUGNUMBER);
    80   printStatus(summary);
    82   for (var i=0; i<UBound; i++)
    83   {
    84     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
    85   }
    87   exitFunc ('test');
    88 }

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