diff -r 000000000000 -r 7f95f8617b0b vendor/symfony/src/Symfony/Component/Config/Definition/NodeInterface.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/Config/Definition/NodeInterface.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,84 @@
+<?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\Config\Definition;
+
+/**
+ * Common Interface among all nodes.
+ *
+ * In most cases, it is better to inherit from BaseNode instead of implementing
+ * this interface yourself.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface NodeInterface
+{
+    /**
+     * Returns the name of the node.
+     *
+     * @return string The name of the node
+     */
+    function getName();
+
+    /**
+     * Returns the path of the node.
+     *
+     * @return string The node path
+     */
+    function getPath();
+
+    /**
+     * Returns true when the node is required.
+     *
+     * @return Boolean If the node is required
+     */
+    function isRequired();
+
+    /**
+     * Returns true when the node has a default value.
+     *
+     * @return Boolean If the node has a default value
+     */
+    function hasDefaultValue();
+
+    /**
+     * Returns the default value of the node.
+     *
+     * @return mixed The default value
+     * @throws \RuntimeException if the node has no default value
+     */
+    function getDefaultValue();
+
+    /**
+     * Normalizes the supplied value.
+     *
+     * @param mixed $value The value to normalize
+     * @return mixed The normalized value
+     */
+    function normalize($value);
+
+    /**
+     * Merges two values together.
+     *
+     * @param mixed $leftSide
+     * @param mixed $rightSide
+     * @return mixed The merged values
+     */
+    function merge($leftSide, $rightSide);
+
+    /**
+     * Finalizes a value.
+     *
+     * @param mixed $value The value to finalize
+     * @return mixed The finalized value
+     */
+    function finalize($value);
+}