--- /dev/null
+<?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\HttpKernel\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+
+/**
+ * Adds services tagged kernel.fragment_renderer as HTTP content rendering strategies.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FragmentRendererPass implements CompilerPassInterface
+{
+ private $handlerService;
+ private $rendererTag;
+
+ /**
+ * @param string $handlerService Service name of the fragment handler in the container
+ * @param string $rendererTag Tag name used for fragments
+ */
+ public function __construct($handlerService = 'fragment.handler', $rendererTag = 'kernel.fragment_renderer')
+ {
+ $this->handlerService = $handlerService;
+ $this->rendererTag = $rendererTag;
+ }
+
+ public function process(ContainerBuilder $container)
+ {
+ if (!$container->hasDefinition($this->handlerService)) {
+ return;
+ }
+
+ $definition = $container->getDefinition($this->handlerService);
+ foreach ($container->findTaggedServiceIds($this->rendererTag) as $id => $tags) {
+ $def = $container->getDefinition($id);
+ if (!$def->isPublic()) {
+ throw new \InvalidArgumentException(sprintf('The service "%s" must be public as fragment renderer are lazy-loaded.', $id));
+ }
+
+ if ($def->isAbstract()) {
+ throw new \InvalidArgumentException(sprintf('The service "%s" must not be abstract as fragment renderer are lazy-loaded.', $id));
+ }
+
+ $class = $container->getParameterBag()->resolveValue($def->getClass());
+ $interface = 'Symfony\Component\HttpKernel\Fragment\FragmentRendererInterface';
+
+ if (!is_subclass_of($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, $interface));
+ }
+
+ foreach ($tags as $tag) {
+ if (!isset($tag['alias'])) {
+ @trigger_error(sprintf('Service "%s" will have to define the "alias" attribute on the "%s" tag as of Symfony 3.0.', $id, $this->rendererTag), E_USER_DEPRECATED);
+
+ // register the handler as a non-lazy-loaded one
+ $definition->addMethodCall('addRenderer', array(new Reference($id)));
+ } else {
+ $definition->addMethodCall('addRendererService', array($tag['alias'], $id));
+ }
+ }
+ }
+ }
+}