/* NB: An error object's private must be set through this function. */
static void
SetExnPrivate(RawObject exnObject, JSExnPrivate *priv)
{
JS_ASSERT(!exnObject->getPrivate());
JS_ASSERT(exnObject->isError());
if (JSErrorReport *report = priv->errorReport) {
if (JSPrincipals *prin = report->originPrincipals)
JS_HoldPrincipals(prin);
}
exnObject->setPrivate(priv);
}
JSErrorReport *
js_ErrorFromException(jsval exn)
{
if (JSVAL_IS_PRIMITIVE(exn))
return NULL;
RawObject obj = JSVAL_TO_OBJECT(exn);
if (!obj->isError())
return NULL;
JSExnPrivate *priv = GetExnPrivate(obj);
if (!priv)
return NULL;
return priv->errorReport;
}