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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\EventDispatcher;
/**
* A read-only proxy for an event dispatcher.
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class ImmutableEventDispatcher implements EventDispatcherInterface
{
private EventDispatcherInterface $dispatcher;
public function __construct(EventDispatcherInterface $dispatcher)
{
$this->dispatcher = $dispatcher;
}
public function dispatch(object $event, string $eventName = null): object
{
return $this->dispatcher->dispatch($event, $eventName);
}
/**
* @return never
*/
public function addListener(string $eventName, callable|array $listener, int $priority = 0)
{
throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
}
/**
* @return never
*/
public function addSubscriber(EventSubscriberInterface $subscriber)
{
throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
}
/**
* @return never
*/
public function removeListener(string $eventName, callable|array $listener)
{
throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
}
/**
* @return never
*/
public function removeSubscriber(EventSubscriberInterface $subscriber)
{
throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.');
}
public function getListeners(string $eventName = null): array
{
return $this->dispatcher->getListeners($eventName);
}
public function getListenerPriority(string $eventName, callable|array $listener): ?int
{
return $this->dispatcher->getListenerPriority($eventName, $listener);
}
public function hasListeners(string $eventName = null): bool
{
return $this->dispatcher->hasListeners($eventName);
}
}