JSObject *
js_FindVariableScope(JSContext *cx, JSFunction **funp)
{
JSStackFrame *fp;
JSObject *obj, *parent, *withobj;
JSClass *clasp;
JSFunction *fun;
PR_ASSERT(JS_IS_LOCKED(cx));
fp = cx->fp;
for (obj = fp->scopeChain, withobj = NULL; ; obj = parent) {
parent = OBJ_GET_PARENT(obj);
clasp = obj->map->clasp;
if (!parent || clasp != &js_WithClass)
break;
withobj = obj;
}
fun = (clasp == &js_FunctionClass) ? JS_GetPrivate(cx, obj) : NULL;
#if JS_HAS_CALL_OBJECT
if (fun && fun->script) {
for (; fp && fp->fun != fun; fp = fp->down)
;
if (fp) {
obj = js_GetCallObject(cx, fp, parent);
if (withobj)
OBJ_SET_PARENT(withobj, obj);
}
}
#endif
*funp = fun;
return obj;
}
JS_GetFrameCallObject(JSContext *cx, JSStackFrame *fp)
{
if (! fp->fun)
return NULL;
#if JS_HAS_ARGS_OBJECT
/* Force creation of argument object if not yet created */
(void) js_GetArgsObject(cx, fp);
#endif
#if JS_HAS_CALL_OBJECT
/*
* XXX ill-defined: null return here means error was reported, unlike a
* null returned above or in the #else
*/
return js_GetCallObject(cx, fp, NULL);
#else
return NULL;
#endif /* JS_HAS_CALL_OBJECT */
}