/**
* @param $eventName
* @param EventInterface|null $event
* @return Event
* @throws Exception
*/
public function dispatch($eventName, EventInterface $event = null)
{
if ($this->hasListeners($eventName)) {
if ($event === null) {
$event = new Event();
}
foreach ($this->getListeners($eventName) as $listener) {
if (is_callable($listener)) {
call_user_func_array($listener, [$event, $eventName, $this]);
if ($event->isStoped()) {
break;
}
} else {
throw new Exception('Listener is not callable');
}
}
}
return $event;
}
