/* -*- 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 * 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() { printBugNumber(BUGNUMBER); printStatus (summary); for (var i=0; i