regress-101488.js - mozsearch

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/* -*- 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()

  printBugNumber(BUGNUMBER);

  printStatus (summary);

  for (var i=0; i<UBound; i++)

    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);