Subj : Re: using  js_HashString in a getter callback
To   : netscape.public.mozilla.jseng
From : Sterling Bates
Date : Fri May 21 2004 11:28 am

Brann Joly wrote:
> I would like to be able to store a private pointer somewhere, and to get it
> back in my generic getter method, but it seems I can't.

The obj parameter in your getter method is the object containing the 
property.  You can use the JS_SetPrivate and JS_GetPrivate methods on 
that object to set & get your private data.

> this raises the following question: Is Id something stable over time, or
> should I always use JS_ValueToString ?

I'll try this one (could be wrong): the value pointed to by id should 
not be moved by reallocation, so it should be safe to track id.

> 
> second, i may have different objects with the same property name. in this
> case, are both id (i mean the id parameter getting passed to the getter
> callback) equals, or are them different, but still returning the same string
> when you call JS_ValueToString(id).

They'll be different pointers if you set them separately.  I think you 
could try using a prototype, if it fits your code.  I don't have enough 
experience to say one way or the other, so I'll let someone else say for 
sure :)

Sterling

.