Subj : Re: (Spidermonkey) Converting a property name to a tinyId
To   : netscape.public.mozilla.jseng
From : zakalawe@mac.com (James Turner)
Date : Fri Mar 14 2003 01:11 pm

Brendan Eich <brendan@meer.net> wrote in message news:<3E6F838B.8060907@meer.net>...

> It does, but maybe you can get it from where you need it.  Where in your 
> code do you have this pressing need?  If within a property getter or 
> setter, then of course JSVAL_IS_INT(id) is true, and JSVAL_TO_INT(id) 
> gives the tinyid.  Otherwise, if you have only a short list of 
> properties, linear search should be ok.  We could add a 
> JS_GetPropertyTinyId as you suggest, but maybe it's not worth the code 
> bloat (minor, but still) in the common engine, if only a few embeddings 
> need it and can compute what it returns otherwise.
> 
> So sell me!

Well ... I have no illusions about the general aplicability of this
function to other embedders, feel free to simply post a code snippet
that gets the job done. Anyway, the reason I need this is I'm
'dual-purpose'ing my property setters (and maybe getters too). I.e
they are hooked up as 'direct' JSPropertyOps in the property
defintions for my object. But I also want to invoke the same code
logic in response to some other events (persistence and network
transmission, it's a long story).

So, again, I think I need this. I could make it work by havinng the
implementation of my propertyOps check the property by both ID *and*
name (so either works), but that all seems like hackage and
duplication that could be avoided. Note : obtaining the behaviour by
execting a trival script from an in-memory string is *not* acceptable
(I figure at least one person will suggest it)

Am I right, or just plain silly?
James

.