1 files changed, 100 insertions, 0 deletions
diff --git a/vendor/symfony/event-dispatcher/DependencyInjection/RegisterListenersPass.php b/vendor/symfony/event-dispatcher/DependencyInjection/RegisterListenersPass.php
new file mode 100644
index 0000000..5a94ae8
--- /dev/null
+++ b/vendor/symfony/event-dispatcher/DependencyInjection/RegisterListenersPass.php
@@ -0,0 +1,100 @@
+<?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;
+
+/**
+ * Compiler pass to register tagged services for an event dispatcher.
+ */
+class RegisterListenersPass implements CompilerPassInterface
+{
+    protected $dispatcherService;
+    protected $listenerTag;
+    protected $subscriberTag;
+
+    /**
+     * @param string $dispatcherService Service name of the event dispatcher in processed container
+     * @param string $listenerTag       Tag name used for listener
+     * @param string $subscriberTag     Tag name used for subscribers
+     */
+    public function __construct($dispatcherService = 'event_dispatcher', $listenerTag = 'kernel.event_listener', $subscriberTag = 'kernel.event_subscriber')
+    {
+        $this->dispatcherService = $dispatcherService;
+        $this->listenerTag = $listenerTag;
+        $this->subscriberTag = $subscriberTag;
+    }
+
+    public function process(ContainerBuilder $container)
+    {
+        if (!$container->hasDefinition($this->dispatcherService) && !$container->hasAlias($this->dispatcherService)) {
+            return;
+        }
+
+        $definition = $container->findDefinition($this->dispatcherService);
+
+        foreach ($container->findTaggedServiceIds($this->listenerTag) as $id => $events) {
+            $def = $container->getDefinition($id);
+            if (!$def->isPublic()) {
+                throw new \InvalidArgumentException(sprintf('The service "%s" must be public as event listeners are lazy-loaded.', $id));
+            }
+
+            if ($def->isAbstract()) {
+                throw new \InvalidArgumentException(sprintf('The service "%s" must not be abstract as event listeners are lazy-loaded.', $id));
+            }
+
+            foreach ($events as $event) {
+                $priority = isset($event['priority']) ? $event['priority'] : 0;
+
+                if (!isset($event['event'])) {
+                    throw new \InvalidArgumentException(sprintf('Service "%s" must define the "event" attribute on "%s" tags.', $id, $this->listenerTag));
+                }
+
+                if (!isset($event['method'])) {
+                    $event['method'] = 'on'.preg_replace_callback(array(
+                        '/(?<=\b)[a-z]/i',
+                        '/[^a-z0-9]/i',
+                    ), function ($matches) { return strtoupper($matches[0]); }, $event['event']);
+                    $event['method'] = preg_replace('/[^a-z0-9]/i', '', $event['method']);
+                }
+
+                $definition->addMethodCall('addListenerService', array($event['event'], array($id, $event['method']), $priority));
+            }
+        }
+
+        foreach ($container->findTaggedServiceIds($this->subscriberTag) as $id => $attributes) {
+            $def = $container->getDefinition($id);
+            if (!$def->isPublic()) {
+                throw new \InvalidArgumentException(sprintf('The service "%s" must be public as event subscribers are lazy-loaded.', $id));
+            }
+
+            if ($def->isAbstract()) {
+                throw new \InvalidArgumentException(sprintf('The service "%s" must not be abstract as event subscribers are lazy-loaded.', $id));
+            }
+
+            // We must assume that the class value has been correctly filled, even if the service is created by a factory
+            $class = $container->getParameterBag()->resolveValue($def->getClass());
+            $interface = 'Symfony\Component\EventDispatcher\EventSubscriberInterface';
+
+            if (!is_subclass_of($class, $interface)) {
+                if (!class_exists($class, false)) {
+                    throw new \InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id));
+                }
+
+                throw new \InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, $interface));
+            }
+
+            $definition->addMethodCall('addSubscriberService', array($id, $class));
+        }
+    }
+}