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<?php
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/*
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* This file is part of Twig.
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*
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* (c) 2015 Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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/**
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Twig_Profiler_NodeVisitor_Profiler extends Twig_BaseNodeVisitor
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{
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private $extensionName;
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public function __construct($extensionName)
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{
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$this->extensionName = $extensionName;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doEnterNode(Twig_Node $node, Twig_Environment $env)
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{
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return $node;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doLeaveNode(Twig_Node $node, Twig_Environment $env)
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{
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if ($node instanceof Twig_Node_Module) {
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$varName = $this->getVarName();
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$node->setNode('display_start', new Twig_Node(array(new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::TEMPLATE, $node->getAttribute('filename'), $varName), $node->getNode('display_start'))));
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$node->setNode('display_end', new Twig_Node(array(new Twig_Profiler_Node_LeaveProfile($varName), $node->getNode('display_end'))));
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} elseif ($node instanceof Twig_Node_Block) {
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$varName = $this->getVarName();
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$node->setNode('body', new Twig_Node_Body(array(
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new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::BLOCK, $node->getAttribute('name'), $varName),
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$node->getNode('body'),
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new Twig_Profiler_Node_LeaveProfile($varName),
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)));
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} elseif ($node instanceof Twig_Node_Macro) {
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$varName = $this->getVarName();
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$node->setNode('body', new Twig_Node_Body(array(
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new Twig_Profiler_Node_EnterProfile($this->extensionName, Twig_Profiler_Profile::MACRO, $node->getAttribute('name'), $varName),
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$node->getNode('body'),
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new Twig_Profiler_Node_LeaveProfile($varName),
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)));
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}
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return $node;
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}
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private function getVarName()
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{
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return sprintf('__internal_%s', hash('sha256', uniqid(mt_rand(), true), false));
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}
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/**
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* {@inheritdoc}
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*/
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public function getPriority()
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{
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return 0;
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}
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}
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