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CHANGELOG.md (2.13 KB)

Debug/

DependencyInjection/

EventDispatcherInterface.php (2.68 KB)

EventSubscriberInterface.php (1.48 KB)

ImmutableEventDispatcher.php (2.45 KB)

LegacyEventDispatcherProxy.php (4.51 KB)

README.md (610 B)

composer.json (1.47 KB)

Edit: ImmutableEventDispatcher.php

<?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 $dispatcher;

public function __construct(EventDispatcherInterface $dispatcher)
    {
        $this->dispatcher = LegacyEventDispatcherProxy::decorate($dispatcher);
    }

/**
     * {@inheritdoc}
     *
     * @param string|null $eventName
     */
    public function dispatch($event/*, string $eventName = null*/)
    {
        $eventName = 1 < \func_num_args() ? func_get_arg(1) : null;

if (is_scalar($event)) {
            // deprecated
            $swap = $event;
            $event = $eventName ?? new Event();
            $eventName = $swap;
        }

return $this->dispatcher->dispatch($event, $eventName);
    }

/**
     * {@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);
    }
}