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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 { /** * The proxied dispatcher. * * @var EventDispatcherInterface */ private $dispatcher; /** * Creates an unmodifiable proxy for an event dispatcher. * * @param EventDispatcherInterface $dispatcher The proxied event dispatcher */ public function __construct(EventDispatcherInterface $dispatcher) { $this->dispatcher = $dispatcher; } /** * {@inheritdoc} */ public function dispatch($eventName, Event $event = null) { return $this->dispatcher->dispatch($eventName, $event); } /** * {@inheritdoc} */ public function addListener($eventName, $listener, $priority = 0) { throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.'); } /** * {@inheritdoc} */ public function addSubscriber(EventSubscriberInterface $subscriber) { throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.'); } /** * {@inheritdoc} */ public function removeListener($eventName, $listener) { throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.'); } /** * {@inheritdoc} */ public function removeSubscriber(EventSubscriberInterface $subscriber) { throw new \BadMethodCallException('Unmodifiable event dispatchers must not be modified.'); } /** * {@inheritdoc} */ public function getListeners($eventName = null) { return $this->dispatcher->getListeners($eventName); } /** * {@inheritdoc} */ public function getListenerPriority($eventName, $listener) { return $this->dispatcher->getListenerPriority($eventName, $listener); } /** * {@inheritdoc} */ public function hasListeners($eventName = null) { return $this->dispatcher->hasListeners($eventName); } }