bool
WrapperAnswer::RecvDropObject(const ObjectId &objId)
{
JSObject *obj = objects_.find(objId);
if (obj) {
objectIdMap(objId.hasXrayWaiver()).remove(obj);
objects_.remove(objId);
}
return true;
}
bool
WrapperOwner::toObjectVariant(JSContext* cx, JSObject* objArg, ObjectVariant* objVarp)
{
RootedObject obj(cx, objArg);
MOZ_ASSERT(obj);
// We always save objects unwrapped in the CPOW table. If we stored
// wrappers, then the wrapper might be GCed while the target remained alive.
// Whenever operating on an object that comes from the table, we wrap it
// in findObjectById.
unsigned wrapperFlags = 0;
obj = js::UncheckedUnwrap(obj, true, &wrapperFlags);
if (obj && IsCPOW(obj) && OwnerOf(obj) == this) {
*objVarp = LocalObject(idOf(obj).serialize());
return true;
}
bool waiveXray = wrapperFlags & xpc::WrapperFactory::WAIVE_XRAY_WRAPPER_FLAG;
ObjectId id = objectIdMap(waiveXray).find(obj);
if (!id.isNull()) {
MOZ_ASSERT(id.hasXrayWaiver() == waiveXray);
*objVarp = MakeRemoteObject(cx, id, obj);
return true;
}
// Need to call PreserveWrapper on |obj| in case it's a reflector.
// FIXME: What if it's an XPCWrappedNative?
if (mozilla::dom::IsDOMObject(obj))
mozilla::dom::TryPreserveWrapper(obj);
id = ObjectId(nextSerialNumber_++, waiveXray);
if (!objects_.add(id, obj))
return false;
if (!objectIdMap(waiveXray).add(cx, obj, id))
return false;
*objVarp = MakeRemoteObject(cx, id, obj);
return true;
}