/**
* Adds an event subscriber that listens on the specified events.
* Internally this will convert all handlers to listeners.
*
* @param EventSubscriber $eventSubscriber The subscriber
* @throws \InvalidArgumentException
*
* @api
*/
public function addSubscriber(EventSubscriber $eventSubscriber)
{
$listeners = $eventSubscriber->getEvents();
foreach ($listeners as $listener => $data) {
if (is_array($data)) {
$data = new SubscriberConfiguration($data[0], $data[1] ?? self::USE_ALL, $data[2] ?? 100);
}
if (!$data instanceof SubscriberConfiguration) {
throw new \InvalidArgumentException('SubscriberConfiguration for ' . $listener . ' in ' . get_class($eventSubscriber) . ' is invalid!');
}
// horrible hack due to array not being a callable in this case ... whut?
$listenerCallable = function ($events) use($eventSubscriber, $listener) {
$eventSubscriber->{$listener}($events);
};
$this->addWeightedListener($listenerCallable, $data->getUseType(), $data->getWeight(), ...$data->getEvents());
}
}
