--- /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\Compiler\CompilerPassInterface;
+use Symfony\Component\HttpKernel\Kernel;
+
+/**
+ * Sets the classes to compile in the cache for the container.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class AddClassesToCachePass implements CompilerPassInterface
+{
+ private $kernel;
+
+ public function __construct(Kernel $kernel)
+ {
+ $this->kernel = $kernel;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function process(ContainerBuilder $container)
+ {
+ $classes = array();
+ foreach ($container->getExtensions() as $extension) {
+ if ($extension instanceof Extension) {
+ $classes = array_merge($classes, $extension->getClassesToCompile());
+ }
+ }
+
+ $this->kernel->setClassCache(array_unique($container->getParameterBag()->resolveValue($classes)));
+ }
+}