286033 - DOM Walking Recursive Functions results in ReferenceError for function

Status: NEW

(Core :: DOM: Core & HTML, defect, P5)

Description

[Zeb Ziggle]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050223 Firefox/1.0.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050223 Firefox/1.0.1

The following snippit was intended to walk the DOM tree. Try the following
javascript snippit in an HTML page. The initial call into findText() works fine,
but the subsequent call attempt into findText() fails with "ReferenceError:
findText not found". 

function findText(x)
{
    try
    {
        document.writeln('In:' + x);

        while (x != null)
        {
            document.writeln('NODE NAME: ' + x.nodeName + ' NODE TYPE: ' +
x.nodeType + ' = ' + x.nodeValue);
            if (x.childNodes != null)
            {
                document.writeln('Children=' + x.childNodes);
    
                for (var i=0; i < x.childNodes.length; i++)
                {
                    var e = x.childNodes[i];
                    document.writeln('i=' + e);
                    findText(e); // This generates ReferenceError.
                }
            }
            document.writeln('After');
            x = x.nextSibling;
        }
        document.writeln('Out');
    }
    catch(e)
    {
        document.writeln('Exception: ' + e);
    }
};

...
    findText(document.documentElement);
...

Reproducible: Always

Steps to Reproduce:
1. Put the above javascript in an HTML page and call it.


Actual Results:  
You should see the something like: 

In:[object HTMLHtmlElement] InZ:0 NODE NAME: HTML NODE TYPE: 1 = null
Children=[object NodeList] i=[object HTMLHeadElement] Exception: ReferenceError:
findText is not defined

Expected Results:  
Walked the child nodes.

Comment 1

[Igor Bukanov]

Product=Rhino has nothing to do with JavaScript or DOM implementations in
mozilla based browsers. 

Comment 2

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.