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diff --git a/vendor/twig/twig/lib/Twig/Extension/Profiler.php b/vendor/twig/twig/lib/Twig/Extension/Profiler.php
new file mode 100644
index 000000000..1d874ef8e
--- /dev/null
+++ b/vendor/twig/twig/lib/Twig/Extension/Profiler.php
@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) Fabien Potencier
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+class Twig_Extension_Profiler extends Twig_Extension
+{
+    private $actives = array();
+
+    public function __construct(Twig_Profiler_Profile $profile)
+    {
+        $this->actives[] = $profile;
+    }
+
+    public function enter(Twig_Profiler_Profile $profile)
+    {
+        $this->actives[0]->addProfile($profile);
+        array_unshift($this->actives, $profile);
+    }
+
+    public function leave(Twig_Profiler_Profile $profile)
+    {
+        $profile->leave();
+        array_shift($this->actives);
+
+        if (1 === count($this->actives)) {
+            $this->actives[0]->leave();
+        }
+    }
+
+    public function getNodeVisitors()
+    {
+        return array(new Twig_Profiler_NodeVisitor_Profiler(get_class($this)));
+    }
+
+    public function getName()
+    {
+        return 'profiler';
+    }
+}