| /* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| /* |
| * Date: 24 September 2001 |
| * |
| * SUMMARY: Try assigning arr.length = new Number(n) |
| * From correspondence with Igor Bukanov <igor@icesoft.no> |
| * See http://bugzilla.mozilla.org/show_bug.cgi?id=101488 |
| * |
| * Without the "new" keyword, assigning arr.length = Number(n) worked. |
| * But with it, Rhino was giving an error "Inappropriate array length" |
| * and SpiderMonkey was exiting without giving any error or return value - |
| * |
| * Comments on the Rhino code by igor@icesoft.no: |
| * |
| * jsSet_length requires that the new length value should be an instance |
| * of Number. But according to Ecma 15.4.5.1, item 12-13, an error should |
| * be thrown only if ToUint32(length_value) != ToNumber(length_value) |
| */ |
| //----------------------------------------------------------------------------- |
| var UBound = 0; |
| var BUGNUMBER = 101488; |
| var summary = 'Try assigning arr.length = new Number(n)'; |
| var status = ''; |
| var statusitems = []; |
| var actual = ''; |
| var actualvalues = []; |
| var expect= ''; |
| var expectedvalues = []; |
| var arr = []; |
| |
| |
| status = inSection(1); |
| arr = Array(); |
| tryThis('arr.length = new Number(1);'); |
| actual = arr.length; |
| expect = 1; |
| addThis(); |
| |
| status = inSection(2); |
| arr = Array(5); |
| tryThis('arr.length = new Number(1);'); |
| actual = arr.length; |
| expect = 1; |
| addThis(); |
| |
| status = inSection(3); |
| arr = Array(); |
| tryThis('arr.length = new Number(17);'); |
| actual = arr.length; |
| expect = 17; |
| addThis(); |
| |
| status = inSection(4); |
| arr = Array(5); |
| tryThis('arr.length = new Number(17);'); |
| actual = arr.length; |
| expect = 17; |
| addThis(); |
| |
| |
| /* |
| * Also try the above with the "new" keyword before Array(). |
| * Array() and new Array() should be equivalent, by ECMA 15.4.1.1 |
| */ |
| status = inSection(5); |
| arr = new Array(); |
| tryThis('arr.length = new Number(1);'); |
| actual = arr.length; |
| expect = 1; |
| addThis(); |
| |
| status = inSection(6); |
| arr = new Array(5); |
| tryThis('arr.length = new Number(1);'); |
| actual = arr.length; |
| expect = 1; |
| addThis(); |
| |
| arr = new Array(); |
| tryThis('arr.length = new Number(17);'); |
| actual = arr.length; |
| expect = 17; |
| addThis(); |
| |
| status = inSection(7); |
| arr = new Array(5); |
| tryThis('arr.length = new Number(17);'); |
| actual = arr.length; |
| expect = 17; |
| addThis(); |
| |
| |
| |
| //----------------------------------------------------------------------------- |
| test(); |
| //----------------------------------------------------------------------------- |
| |
| |
| |
| function tryThis(s) |
| { |
| try |
| { |
| eval(s); |
| } |
| catch(e) |
| { |
| // keep going |
| } |
| } |
| |
| |
| function addThis() |
| { |
| statusitems[UBound] = status; |
| actualvalues[UBound] = actual; |
| expectedvalues[UBound] = expect; |
| UBound++; |
| } |
| |
| |
| function test() |
| { |
| enterFunc ('test'); |
| printBugNumber(BUGNUMBER); |
| printStatus (summary); |
| |
| for (var i=0; i<UBound; i++) |
| { |
| reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]); |
| } |
| |
| exitFunc ('test'); |
| } |