--- /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\DependencyInjection\Compiler;
+
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+
+/**
+ * Interface that must be implemented by compilation passes.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface CompilerPassInterface
+{
+ /**
+ * You can modify the container here before it is dumped to PHP code.
+ *
+ * @param ContainerBuilder $container
+ */
+ public function process(ContainerBuilder $container);
+}