gecko/js/tests/e4x/extensions/regress-353165.js

/* -*- Mode: java; tab-width:8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
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 *
 * Software distributed under the License is distributed on an "AS IS" basis,
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 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is JavaScript Engine testing utilities.
 *
 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s): Igor Bukanov
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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gTestfile = 'regress-353165.js';

var BUGNUMBER = 353165;
var summary = 'Do not crash with xml_getMethod';
var actual = 'No Crash';
var expect = 'No Crash';

printBugNumber(BUGNUMBER);
START(summary);

crash1();
crash2();

END();

function crash1()
{
    try {
        var set = new XML('<a><b>text</b></a>').children('b');
        var counter = 0;
        Object.prototype.unrooter getter = function() {
            ++counter;
            if (counter == 5) {
                set[0] = new XML('<c/>');
                if (typeof gc == "function") {
                    gc();
                    var tmp = Math.sqrt(2), tmp2;
                    for (i = 0; i != 50000; ++i)
                        tmp2 = tmp / 2;
                }
            }
            return undefined;
        }

        set.unrooter();
    }
    catch(ex) {
        print('1: ' + ex);
    }
    TEST(1, expect, actual);

}

function crash2() {
    try {
        var expected = "SOME RANDOM TEXT";

        var set = <a><b>{expected}</b></a>.children('b');
        var counter = 0;

        function unrooter_impl() {
                return String(this);
        }

        Object.prototype.unrooter getter = function() {
            ++counter;
            if (counter == 7)
            return unrooter_impl;
            if (counter == 5) {
                set[0] = new XML('<c/>');
                if (typeof gc == "function") {
                    gc();
                    var tmp = 1e500, tmp2;
                    for (i = 0; i != 50000; ++i)
                        tmp2 = tmp / 1.1;
                }
            }
            return undefined;
        }

        set.unrooter();
    }
    catch(ex) {
        print('2: ' + ex);
    }
    TEST(2, expect, actual);
}