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      1 /* ***** BEGIN LICENSE BLOCK *****
      2 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
      3 *
      4 * The contents of this file are subject to the Netscape Public License
      5 * Version 1.1 (the "License"); you may not use this file except in
      6 * compliance with the License. You may obtain a copy of the License at
      7 * http://www.mozilla.org/NPL/
      8 *
      9 * Software distributed under the License is distributed on an "AS IS" basis,
     10 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
     11 * for the specific language governing rights and limitations under the
     12 * License.
     13 *
     14 * The Original Code is JavaScript Engine testing utilities.
     15 *
     16 * The Initial Developer of the Original Code is Netscape Communications Corp.
     17 * Portions created by the Initial Developer are Copyright (C) 2002
     18 * the Initial Developer. All Rights Reserved.
     19 *
     20 * Contributor(s): pschwartau (at) netscape.com, mstoltz (at) netscape.com
     21 *
     22 * Alternatively, the contents of this file may be used under the terms of
     23 * either the GNU General Public License Version 2 or later (the "GPL"), or
     24 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
     25 * in which case the provisions of the GPL or the LGPL are applicable instead
     26 * of those above. If you wish to allow use of your version of this file only
     27 * under the terms of either the GPL or the LGPL, and not to allow others to
     28 * use your version of this file under the terms of the NPL, indicate your
     29 * decision by deleting the provisions above and replace them with the notice
     30 * and other provisions required by the GPL or the LGPL. If you do not delete
     31 * the provisions above, a recipient may use your version of this file under
     32 * the terms of any one of the NPL, the GPL or the LGPL.
     33 *
     34 * ***** END LICENSE BLOCK *****
     35 *
     36 *
     37 * Date:    08 July 2002
     38 * SUMMARY: Testing expressions with large numbers of parentheses
     39 * See http://bugzilla.mozilla.org/show_bug.cgi?id=152646
     40 *
     41 */
     42 //-----------------------------------------------------------------------------
     43 var UBound = 0;
     44 var bug = 152646;
     45 var summary = 'Testing expressions with large numbers of parentheses';
     46 var status = '';
     47 var statusitems = [];
     48 var actual = '';
     49 var actualvalues = [];
     50 var expect= '';
     51 var expectedvalues = [];
     52 
     53 
     54 /*
     55  * Just seeing that we don't crash when compiling this assignment -
     56  *
     57  * We will form an eval string to set the result-variable |actual|.
     58  * To get a feel for this, suppose N were 3. Then the eval string is
     59  * 'actual = (((0)));' The expected value for this after eval() is 0.
     60  */
     61 status = inSection(1);
     62 
     63 var sLeft = '((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((';
     64 sLeft += sLeft;
     65 sLeft += sLeft;
     66 sLeft += sLeft;
     67 sLeft += sLeft;
     68 sLeft += sLeft;
     69 
     70 var sRight = '))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
     71 sRight += sRight;
     72 sRight += sRight;
     73 sRight += sRight;
     74 sRight += sRight;
     75 
     76 var sEval = 'actual = ' + sLeft + '0' + sRight;
     77 try
     78 {
     79   eval(sEval);
     80 }
     81 catch(e)
     82 {
     83   /*
     84    * An exception during this eval is OK, as the runtime can throw one
     85    * in response to too deep recursion. We haven't crashed; good!
     86    */
     87   actual = 0;
     88 }
     89 expect = 0;
     90 addThis();
     91 
     92 
     93 
     94 //-----------------------------------------------------------------------------
     95 test();
     96 //-----------------------------------------------------------------------------
     97 
     98 
     99 
    100 function addThis()
    101 {
    102   statusitems[UBound] = status;
    103   actualvalues[UBound] = actual;
    104   expectedvalues[UBound] = expect;
    105   UBound++;
    106 }
    107 
    108 
    109 function test()
    110 {
    111   enterFunc('test');
    112   printBugNumber(bug);
    113   printStatus(summary);
    114 
    115   for (var i=0; i<UBound; i++)
    116   {
    117     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
    118   }
    119 
    120   exitFunc ('test');
    121 }
    122