Re: Can you prototype the XML literal exposed in E4X?

Lucky <[email protected]>
Newsgroups gmane.comp.mozilla.devel.xml
Message-ID <[email protected]>
Martin Honnen wrote:
> Lucky wrote:
> 
>> var xml = <sample/>;
>>
>> can i prototype the resultant document?
> 
> E4X does not know documents, it has XML objects and XMLList objects (and 
> even does a lot to prevent you from distinguishing those). XML objects 
> then can have different node kind, element, comment, processing 
> instruction, attribute.
> In your sample above xml is simply an XML object for which 
> xml.nodeKind() gives 'element'. It is
>   xml instanceof XML
> however.
> 
> E4X as currently specified is a bit broken when it comes to prototype 
> inheritance and the ability to add methods for instance as you can do 
> with other native objects. But Brendan has introduced a special 
> namespace named function in Spidermonkey, the JavaScript engine in 
> Mozilla, and that way you could do e.g.
> 
> var xml = <sample/>;
> XML.prototype.function::praise = function () {
>   alert('Kibology for all!\r\n' + this.toXMLString());
> };
> xml.praise()
> 
> in Firefox 1.5/Mozilla 1.8.
> 
wow, very nice to know, thanks for the help martin.
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