[DependencyInjection] Autoconfigurable attributes

Author: derrabus

DependencyInjection/FrameworkExtension.php

@@ -58,6 +58,7 @@
 use Symfony\Component\DependencyInjection\Parameter;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\DependencyInjection\ServiceLocator;
+use Symfony\Component\EventDispatcher\Attribute\EventListener;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
 use Symfony\Component\Finder\Finder;
@@ -549,6 +550,10 @@ public function load(array $configs, ContainerBuilder $container)
         $container->registerForAutoconfiguration(LoggerAwareInterface::class)
             ->addMethodCall('setLogger', [new Reference('logger')]);
 
+        $container->registerAttributeForAutoconfiguration(EventListener::class, static function (ChildDefinition $definition, EventListener $attribute): void {
+            $definition->addTag('kernel.event_listener', get_object_vars($attribute));
+        });
+
         if (!$container->getParameter('kernel.debug')) {
             // remove tagged iterator argument for resource checkers
             $container->getDefinition('config_cache_factory')->setArguments([]);