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Edit File: StopwatchNode.php

<?php

namespace Barryvdh\Debugbar\Twig\Node;

/**
 * Represents a stopwatch node. Based on Symfony\Bridge\Twig\Node\StopwatchNode
 *
 * @author Wouter J <wouter@wouterj.nl>
 */
class StopwatchNode extends \Twig_Node
{
    public function __construct(
        \Twig_NodeInterface $name,
        $body,
        \Twig_Node_Expression_AssignName $var,
        $lineno = 0,
        $tag = null
    ) {
        parent::__construct(['body' => $body, 'name' => $name, 'var' => $var], [], $lineno, $tag);
    }

public function compile(\Twig_Compiler $compiler)
    {
        $compiler
            ->addDebugInfo($this)
            ->write('')
            ->subcompile($this->getNode('var'))
            ->raw(' = ')
            ->subcompile($this->getNode('name'))
            ->write(";\n")
            ->write("\$this->env->getExtension('stopwatch')->getDebugbar()->startMeasure(")
            ->subcompile($this->getNode('var'))
            ->raw(");\n")
            ->subcompile($this->getNode('body'))
            ->write("\$this->env->getExtension('stopwatch')->getDebugbar()->stopMeasure(")
            ->subcompile($this->getNode('var'))
            ->raw(");\n");
    }
}

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