tor-browser

The Tor Browser
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array-001.js (1963B)

      1 /* -*- indent-tabs-mode: nil; js-indent-level: 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/. */
      5 
      6 /*
      7 * Date: 24 September 2001
      8 *
      9 * SUMMARY: Truncating arrays that have decimal property names.
     10 * From correspondence with Igor Bukanov <igor@icesoft.no>:
     11 */
     12 //-----------------------------------------------------------------------------
     13 var UBound = 0;
     14 var BUGNUMBER = '(none)';
     15 var summary = 'Truncating arrays that have decimal property names';
     16 var BIG_INDEX = 4294967290;
     17 var status = '';
     18 var statusitems = [];
     19 var actual = '';
     20 var actualvalues = [];
     21 var expect= '';
     22 var expectedvalues = [];
     23 
     24 
     25 var arr = Array(BIG_INDEX);
     26 arr[BIG_INDEX - 1] = 'a';
     27 arr[BIG_INDEX - 10000] = 'b';
     28 arr[BIG_INDEX - 0.5] = 'c';  // not an array index - but a valid property name
     29 // Truncate the array -
     30 arr.length = BIG_INDEX - 5000;
     31 
     32 
     33 // Enumerate its properties with for..in
     34 var s = '';
     35 for (var i in arr)
     36 {
     37  s += arr[i];
     38 }
     39 
     40 
     41 /*
     42 * We expect s == 'cb' or 'bc' (EcmaScript does not fix the order).
     43 * Note 'c' is included: for..in includes ALL enumerable properties,
     44 * not just array-index properties. The bug was: Rhino gave s == ''.
     45 */
     46 status = inSection(1);
     47 actual = sortThis(s);
     48 expect = 'bc';
     49 addThis();
     50 
     51 
     52 
     53 //-----------------------------------------------------------------------------
     54 test();
     55 //-----------------------------------------------------------------------------
     56 
     57 
     58 
     59 function sortThis(str)
     60 {
     61  var chars = str.split('');
     62  chars = chars.sort();
     63  return chars.join('');
     64 }
     65 
     66 
     67 function addThis()
     68 {
     69  statusitems[UBound] = status;
     70  actualvalues[UBound] = actual;
     71  expectedvalues[UBound] = expect;
     72  UBound++;
     73 }
     74 
     75 
     76 function test()
     77 {
     78  printBugNumber(BUGNUMBER);
     79  printStatus (summary);
     80 
     81  for (var i=0; i<UBound; i++)
     82  {
     83    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
     84  }
     85 }