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vendor/symfony/event-dispatcher/DependencyInjection/AddEventAliasesPass.php

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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\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+
+/**
+ * This pass allows bundles to extend the list of event aliases.
+ *
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+class AddEventAliasesPass implements CompilerPassInterface
+{
+    public function __construct(
+        private array $eventAliases,
+    ) {
+    }
+
+    public function process(ContainerBuilder $container): void
+    {
+        $eventAliases = $container->hasParameter('event_dispatcher.event_aliases') ? $container->getParameter('event_dispatcher.event_aliases') : [];
+
+        $container->setParameter(
+            'event_dispatcher.event_aliases',
+            array_merge($eventAliases, $this->eventAliases)
+        );
+    }
+}