Subj : Re: JS_GetArrayLength() crashing (garbage collection issue)
To   : sebastien maraux
From : Brendan Eich
Date : Fri Feb 25 2005 10:50 am

> A children is typically added with
> JSObject *localObj = JSConstructObject(...my objectClass...);
> JS_AddRoot(context, &localObj);
> jsval localVal = OBJECT_TO_JSVAL(localObj);
> JS_SetElement(Context, pDataHolder, (jsint) u4Index, &localVal );
> 
> But (I guess that) as it is local, localObj is being deleted, causing
> a bit later a JS_GC call to crash.


Don't guess, and don't root unnecessarily.  If pDataHolder is rooted or 
well-connected, you shouldn't need to root localObj above.  Have you 
read http://www.mozilla.org/js/spidermonkey/gctips.html yet?

How is pDataHolder protected from GC?

/be

.