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

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
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  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is JavaScript Engine testing utilities.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corp.
  19  * Portions created by the Initial Developer are Copyright (C) 2003
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *   igor@icesoft.com, pschwartau@netscape.com
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
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  35  * the terms of any one of the MPL, the GPL or the LGPL.
  36  *
  37  * ***** END LICENSE BLOCK ***** */
  38
  39 /*
  40  *
  41  * Date:    08 February 2003
  42  * SUMMARY: Parser recursion should check stack overflow
  43  *
  44  * See http://bugzilla.mozilla.org/show_bug.cgi?id=192414
  45  *
  46  */
  47 //-----------------------------------------------------------------------------
  48 var gTestfile = 'regress-192414.js';
  49 var UBound = 0;
  50 var BUGNUMBER = 192414;
  51 var summary = 'Parser recursion should check stack overflow';
  52 var status = '';
  53 var statusitems = [];
  54 var actual = '';
  55 var actualvalues = [];
  56 var expect= '';
  57 var expectedvalues = [];
  58
  59 /*
  60  * We will form an eval string to set the result-variable |actual|.
  61  * To get a feel for this, suppose N were 3. Then the eval string is
  62  * 'actual = (1&(1&(1&1)));' The expected value after eval() is 1.
  63  */
  64 status = inSection(1);
  65 var N = 10000;
  66 var left = repeat_str('(1&', N);
  67 var right = repeat_str(')', N);
  68 var str = 'actual = '.concat(left, '1', right, ';');
  69 try
  70 {
  71   eval(str);
  72 }
  73 catch (e)
  74 {
  75   /*
  76    * An exception during this eval is OK, as the runtime can throw one
  77    * in response to too deep recursion. We haven't crashed; good!
  78    */
  79   actual = 1;
  80 }
  81 expect = 1;
  82 addThis();
  83
  84
  85
  86 //-----------------------------------------------------------------------------
  87 test();
  88 //-----------------------------------------------------------------------------
  89
  90
  91
  92 function repeat_str(str, repeat_count)
  93 {
  94   var arr = new Array(--repeat_count);
  95   while (repeat_count != 0)
  96     arr[--repeat_count] = str;
  97   return str.concat.apply(str, arr);
  98 }
  99
 100
 101 function addThis()
 102 {
 103   statusitems[UBound] = status;
 104   actualvalues[UBound] = actual;
 105   expectedvalues[UBound] = expect;
 106   UBound++;
 107 }
 108
 109
 110 function test()
 111 {
 112   enterFunc('test');
 113   printBugNumber(BUGNUMBER);
 114   printStatus(summary);
 115
 116   for (var i=0; i<UBound; i++)
 117   {
 118     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
 119   }
 120
 121   exitFunc ('test');
 122 }