std::function<void(folly::dynamic)> makeCallback(
std::weak_ptr<Instance> instance, const folly::dynamic& callbackId) {
if (!callbackId.isInt()) {
throw std::invalid_argument("Expected callback(s) as final argument");
}
auto id = callbackId.getInt();
return [winstance = std::move(instance), id](folly::dynamic args) {
if (auto instance = winstance.lock()) {
instance->callJSCallback(id, std::move(args));
}
};
}
