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								vendor/symfony/event-dispatcher/DependencyInjection/RegisterListenersPass.php
									
									
									
									
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								vendor/symfony/event-dispatcher/DependencyInjection/RegisterListenersPass.php
									
									
									
									
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							| @@ -0,0 +1,136 @@ | ||||
| <?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\Argument\ServiceClosureArgument; | ||||
| use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface; | ||||
| use Symfony\Component\DependencyInjection\ContainerBuilder; | ||||
| use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException; | ||||
| use Symfony\Component\DependencyInjection\Reference; | ||||
| use Symfony\Component\EventDispatcher\EventDispatcher; | ||||
| use Symfony\Component\EventDispatcher\EventSubscriberInterface; | ||||
|  | ||||
| /** | ||||
|  * Compiler pass to register tagged services for an event dispatcher. | ||||
|  */ | ||||
| class RegisterListenersPass implements CompilerPassInterface | ||||
| { | ||||
|     protected $dispatcherService; | ||||
|     protected $listenerTag; | ||||
|     protected $subscriberTag; | ||||
|  | ||||
|     private $hotPathEvents = []; | ||||
|     private $hotPathTagName; | ||||
|  | ||||
|     public function __construct(string $dispatcherService = 'event_dispatcher', string $listenerTag = 'kernel.event_listener', string $subscriberTag = 'kernel.event_subscriber') | ||||
|     { | ||||
|         $this->dispatcherService = $dispatcherService; | ||||
|         $this->listenerTag = $listenerTag; | ||||
|         $this->subscriberTag = $subscriberTag; | ||||
|     } | ||||
|  | ||||
|     public function setHotPathEvents(array $hotPathEvents, $tagName = 'container.hot_path') | ||||
|     { | ||||
|         $this->hotPathEvents = array_flip($hotPathEvents); | ||||
|         $this->hotPathTagName = $tagName; | ||||
|  | ||||
|         return $this; | ||||
|     } | ||||
|  | ||||
|     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, true) as $id => $events) { | ||||
|             foreach ($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'])) { | ||||
|                     $event['method'] = 'on'.preg_replace_callback([ | ||||
|                         '/(?<=\b)[a-z]/i', | ||||
|                         '/[^a-z0-9]/i', | ||||
|                     ], function ($matches) { return strtoupper($matches[0]); }, $event['event']); | ||||
|                     $event['method'] = preg_replace('/[^a-z0-9]/i', '', $event['method']); | ||||
|  | ||||
|                     if (null !== ($class = $container->getDefinition($id)->getClass()) && ($r = $container->getReflectionClass($class, false)) && !$r->hasMethod($event['method']) && $r->hasMethod('__invoke')) { | ||||
|                         $event['method'] = '__invoke'; | ||||
|                     } | ||||
|                 } | ||||
|  | ||||
|                 $definition->addMethodCall('addListener', [$event['event'], [new ServiceClosureArgument(new Reference($id)), $event['method']], $priority]); | ||||
|  | ||||
|                 if (isset($this->hotPathEvents[$event['event']])) { | ||||
|                     $container->getDefinition($id)->addTag($this->hotPathTagName); | ||||
|                 } | ||||
|             } | ||||
|         } | ||||
|  | ||||
|         $extractingDispatcher = new ExtractingEventDispatcher(); | ||||
|  | ||||
|         foreach ($container->findTaggedServiceIds($this->subscriberTag, true) as $id => $attributes) { | ||||
|             $def = $container->getDefinition($id); | ||||
|  | ||||
|             // We must assume that the class value has been correctly filled, even if the service is created by a factory | ||||
|             $class = $def->getClass(); | ||||
|  | ||||
|             if (!$r = $container->getReflectionClass($class)) { | ||||
|                 throw new InvalidArgumentException(sprintf('Class "%s" used for service "%s" cannot be found.', $class, $id)); | ||||
|             } | ||||
|             if (!$r->isSubclassOf(EventSubscriberInterface::class)) { | ||||
|                 throw new InvalidArgumentException(sprintf('Service "%s" must implement interface "%s".', $id, EventSubscriberInterface::class)); | ||||
|             } | ||||
|             $class = $r->name; | ||||
|  | ||||
|             ExtractingEventDispatcher::$subscriber = $class; | ||||
|             $extractingDispatcher->addSubscriber($extractingDispatcher); | ||||
|             foreach ($extractingDispatcher->listeners as $args) { | ||||
|                 $args[1] = [new ServiceClosureArgument(new Reference($id)), $args[1]]; | ||||
|                 $definition->addMethodCall('addListener', $args); | ||||
|  | ||||
|                 if (isset($this->hotPathEvents[$args[0]])) { | ||||
|                     $container->getDefinition($id)->addTag($this->hotPathTagName); | ||||
|                 } | ||||
|             } | ||||
|             $extractingDispatcher->listeners = []; | ||||
|         } | ||||
|     } | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * @internal | ||||
|  */ | ||||
| class ExtractingEventDispatcher extends EventDispatcher implements EventSubscriberInterface | ||||
| { | ||||
|     public $listeners = []; | ||||
|  | ||||
|     public static $subscriber; | ||||
|  | ||||
|     public function addListener($eventName, $listener, $priority = 0) | ||||
|     { | ||||
|         $this->listeners[] = [$eventName, $listener[1], $priority]; | ||||
|     } | ||||
|  | ||||
|     public static function getSubscribedEvents() | ||||
|     { | ||||
|         $callback = [self::$subscriber, 'getSubscribedEvents']; | ||||
|  | ||||
|         return $callback(); | ||||
|     } | ||||
| } | ||||
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