michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * Date: 24 September 2001
michael@0:  *
michael@0:  * SUMMARY: Truncating arrays that have decimal property names.
michael@0:  * From correspondence with Igor Bukanov <igor@icesoft.no>:
michael@0:  */
michael@0: //-----------------------------------------------------------------------------
michael@0: var UBound = 0;
michael@0: var BUGNUMBER = '(none)';
michael@0: var summary = 'Truncating arrays that have decimal property names';
michael@0: var BIG_INDEX = 4294967290;
michael@0: var status = '';
michael@0: var statusitems = [];
michael@0: var actual = '';
michael@0: var actualvalues = [];
michael@0: var expect= '';
michael@0: var expectedvalues = [];
michael@0: 
michael@0: 
michael@0: var arr = Array(BIG_INDEX);
michael@0: arr[BIG_INDEX - 1] = 'a';
michael@0: arr[BIG_INDEX - 10000] = 'b';
michael@0: arr[BIG_INDEX - 0.5] = 'c';  // not an array index - but a valid property name
michael@0: // Truncate the array -
michael@0: arr.length = BIG_INDEX - 5000;
michael@0: 
michael@0: 
michael@0: // Enumerate its properties with for..in
michael@0: var s = '';
michael@0: for (var i in arr)
michael@0: {
michael@0:   s += arr[i];
michael@0: }
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * We expect s == 'cb' or 'bc' (EcmaScript does not fix the order).
michael@0:  * Note 'c' is included: for..in includes ALL enumerable properties,
michael@0:  * not just array-index properties. The bug was: Rhino gave s == ''.
michael@0:  */
michael@0: status = inSection(1);
michael@0: actual = sortThis(s);
michael@0: expect = 'bc';
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: 
michael@0: 
michael@0: function sortThis(str)
michael@0: {
michael@0:   var chars = str.split('');
michael@0:   chars = chars.sort();
michael@0:   return chars.join('');
michael@0: }
michael@0: 
michael@0: 
michael@0: function addThis()
michael@0: {
michael@0:   statusitems[UBound] = status;
michael@0:   actualvalues[UBound] = actual;
michael@0:   expectedvalues[UBound] = expect;
michael@0:   UBound++;
michael@0: }
michael@0: 
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc ('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus (summary);
michael@0: 
michael@0:   for (var i=0; i<UBound; i++)
michael@0:   {
michael@0:     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
michael@0:   }
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }