[EventDispatcher][FrameworkBundle] Rework union types on #[AsEventListener]

Author: HypeMC

DependencyInjection/FrameworkExtension.php

@@ -779,32 +779,13 @@ public function load(array $configs, ContainerBuilder $container): void
 
         $container->registerAttributeForAutoconfiguration(AsEventListener::class, static function (ChildDefinition $definition, AsEventListener $attribute, \ReflectionClass|\ReflectionMethod $reflector) {
             $tagAttributes = get_object_vars($attribute);
-
-            if (!$reflector instanceof \ReflectionMethod) {
-                $definition->addTag('kernel.event_listener', $tagAttributes);
-
-                return;
-            }
-
-            if (isset($tagAttributes['method'])) {
-                throw new LogicException(\sprintf('AsEventListener attribute cannot declare a method on "%s::%s()".', $reflector->class, $reflector->name));
-            }
-
-            $tagAttributes['method'] = $reflector->getName();
-
-            if (!$eventArg = $reflector->getParameters()[0] ?? null) {
-                throw new LogicException(\sprintf('AsEventListener attribute requires the first argument of "%s::%s()" to be an event object.', $reflector->class, $reflector->name));
-            }
-
-            $types = ($type = $eventArg->getType() instanceof \ReflectionUnionType ? $eventArg->getType()->getTypes() : [$eventArg->getType()]) ?: [];
-
-            foreach ($types as $type) {
-                if ($type instanceof \ReflectionNamedType && !$type->isBuiltin()) {
-                    $tagAttributes['event'] = $type->getName();
-
-                    $definition->addTag('kernel.event_listener', $tagAttributes);
+            if ($reflector instanceof \ReflectionMethod) {
+                if (isset($tagAttributes['method'])) {
+                    throw new LogicException(\sprintf('AsEventListener attribute cannot declare a method on "%s::%s()".', $reflector->class, $reflector->name));
                 }
+                $tagAttributes['method'] = $reflector->getName();
             }
+            $definition->addTag('kernel.event_listener', $tagAttributes);
         });
         $container->registerAttributeForAutoconfiguration(AsController::class, static function (ChildDefinition $definition, AsController $attribute): void {
             $definition->addTag('controller.service_arguments');