diff -r 000000000000 -r 7f95f8617b0b vendor/symfony/src/Symfony/Component/DependencyInjection/Alias.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/DependencyInjection/Alias.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,71 @@
+<?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;
+
+/**
+ * @api
+ */
+class Alias
+{
+    private $id;
+    private $public;
+
+    /**
+     * Constructor.
+     *
+     * @param string $id Alias identifier
+     * @param Boolean $public If this alias is public
+     *
+     * @api
+     */
+    public function __construct($id, $public = true)
+    {
+        $this->id = strtolower($id);
+        $this->public = $public;
+    }
+
+    /**
+     * Checks if this DI Alias should be public or not.
+     *
+     * @return Boolean
+     *
+     * @api
+     */
+    public function isPublic()
+    {
+        return $this->public;
+    }
+
+    /**
+     * Sets if this Alias is public.
+     *
+     * @param Boolean $boolean If this Alias should be public
+     *
+     * @api
+     */
+    public function setPublic($boolean)
+    {
+        $this->public = (Boolean) $boolean;
+    }
+
+    /**
+     * Returns the Id of this alias.
+     *
+     * @return string The alias id
+     *
+     * @api
+     */
+    public function __toString()
+    {
+        return $this->id;
+    }
+}