Subj : GC question: JS_GetStringBytes
To   : netscape.public.mozilla.jseng
From : Eric Anholt
Date : Sat Aug 27 2005 04:47 pm

I'm one of the developers of swfdec, and we've been using the 
spidermonkey code for interpreting actionscript with pretty good success 
(primary complaint would be the lack of a build system outside of 
mozilla that properly builds and installs shared libraries).

However, while re-reading the code I realized I was being really sloppy 
with GC, and I had a couple of questions as a result:

- I assume JS_GetStringBytes returns GCed bytes, right?  What is the 
guaranteed lifetime of these guys?  If it's "as long as the original 
stirng is rooted," I'm fine.

- What would you do if you have to maintain a stack of jsvals?  I'm 
using a manually rooted JS array and setting jsvals into indexes of it, 
but I'm not terribly pleased with this method.

.