Remove XML routing loader when it doesn't exist

Author: mbabker

src/DependencyInjection/BabDevWebSocketExtension.php

@@ -17,6 +17,7 @@
 use Symfony\Component\DependencyInjection\Loader\PhpFileLoader;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\HttpKernel\DependencyInjection\ConfigurableExtension;
+use Symfony\Component\Routing\Loader\XmlFileLoader as RoutingXmlFileLoader;
 
 final class BabDevWebSocketExtension extends ConfigurableExtension implements PrependExtensionInterface
 {
@@ -63,6 +64,10 @@ protected function loadInternal(array $mergedConfig, ContainerBuilder $container
         $loader = new PhpFileLoader($container, new FileLocator(__DIR__.'/../../config'));
         $loader->load('services.php');
 
+        if (!class_exists(RoutingXmlFileLoader::class)) {
+            $container->removeDefinition('babdev_websocket_server.routing.loader.xml');
+        }
+
         $container->registerAttributeForAutoconfiguration(AsMessageHandler::class, static function (ChildDefinition $definition, AsMessageHandler $attribute): void {
             $definition->addTag('babdev_websocket_server.message_handler');
         });