--- /dev/null
+<?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.
+ */
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final
+ */
+class Twig_Profiler_NodeVisitor_Profiler extends Twig_BaseNodeVisitor
+{
+ private $extensionName;
+
+ public function __construct($extensionName)
+ {
+ $this->extensionName = $extensionName;
+ }
+
+ protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
+ {
+ return $node;
+ }
+
+ protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
+ {
+ if ($node instanceof Twig_Node_Module) {
+ $varName = $this->getVarName();
+ $node->setNode('display_start', new Twig_Node(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::TEMPLATE, $node->getTemplateName(), $varName), $node->getNode('display_start'))));
+ $node->setNode('display_end', new Twig_Node(array(new Twig_Profiler_Node_LeaveProfile($varName), $node->getNode('display_end'))));
+ } elseif ($node instanceof Twig_Node_Block) {
+ $varName = $this->getVarName();
+ $node->setNode('body', new Twig_Node_Body(array(
+ new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::BLOCK, $node->getAttribute('name'), $varName),
+ $node->getNode('body'),
+ new Twig_Profiler_Node_LeaveProfile($varName),
+ )));
+ } elseif ($node instanceof Twig_Node_Macro) {
+ $varName = $this->getVarName();
+ $node->setNode('body', new Twig_Node_Body(array(
+ new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::MACRO, $node->getAttribute('name'), $varName),
+ $node->getNode('body'),
+ new Twig_Profiler_Node_LeaveProfile($varName),
+ )));
+ }
+
+ return $node;
+ }
+
+ private function getVarName()
+ {
+ return sprintf('__internal_%s', hash('sha256', uniqid(mt_rand(), true), false));
+ }
+
+ public function getPriority()
+ {
+ return 0;
+ }
+}