diff -r 000000000000 -r 7f95f8617b0b vendor/symfony/src/Symfony/Component/DependencyInjection/Reference.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/DependencyInjection/Reference.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,72 @@
+<?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;
+
+/**
+ * Reference represents a service reference.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @api
+ */
+class Reference
+{
+    private $id;
+    private $invalidBehavior;
+    private $strict;
+
+    /**
+     * Constructor.
+     *
+     * @param string  $id              The service identifier
+     * @param int     $invalidBehavior The behavior when the service does not exist
+     * @param Boolean $strict          Sets how this reference is validated
+     *
+     * @see Container
+     */
+    public function __construct($id, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE, $strict = true)
+    {
+        $this->id = $id;
+        $this->invalidBehavior = $invalidBehavior;
+        $this->strict = $strict;
+    }
+
+    /**
+     * __toString.
+     *
+     * @return string The service identifier
+     */
+    public function __toString()
+    {
+        return (string) $this->id;
+    }
+
+    /**
+     * Returns the behavior to be used when the service does not exist.
+     *
+     * @return int
+     */
+    public function getInvalidBehavior()
+    {
+        return $this->invalidBehavior;
+    }
+
+    /**
+     * Returns true when this Reference is strict
+     *
+     * @return Boolean
+     */
+    public function isStrict()
+    {
+        return $this->strict;
+    }
+}