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📁 ..
📁 Cache
📄 Compiler.php(7.12 KB)
📄 Environment.php(51.72 KB)
📁 Error
📄 ExpressionParser.php(31.94 KB)
📁 Extension
📄 FileExtensionEscapingStrategy.php(1.49 KB)
📄 Lexer.php(20.08 KB)
📁 Loader
📄 Markup.php(818 B)
📁 Node
📄 NodeTraverser.php(2.03 KB)
📁 NodeVisitor
📄 Parser.php(13.29 KB)
📁 Profiler
📁 RuntimeLoader
📁 Sandbox
📄 Source.php(1 KB)
📄 Template.php(24.67 KB)
📄 TemplateWrapper.php(3.81 KB)
📁 Test
📄 Token.php(5.85 KB)
📁 TokenParser
📄 TokenStream.php(5.36 KB)
📄 TwigFilter.php(2.75 KB)
📄 TwigFunction.php(2.51 KB)
📄 TwigTest.php(1.65 KB)
📁 Util

Editing: NodeTraverser.php

<?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.
 */

namespace Twig;

use Twig\NodeVisitor\NodeVisitorInterface;

/**
 * A node traverser.
 *
 * It visits all nodes and their children and calls the given visitor for each.
 *
 * @final
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class NodeTraverser
{
    protected $env;
    protected $visitors = [];

/**
     * @param NodeVisitorInterface[] $visitors
     */
    public function __construct(Environment $env, array $visitors = [])
    {
        $this->env = $env;
        foreach ($visitors as $visitor) {
            $this->addVisitor($visitor);
        }
    }

public function addVisitor(NodeVisitorInterface $visitor)
    {
        $this->visitors[$visitor->getPriority()][] = $visitor;
    }

/**
     * Traverses a node and calls the registered visitors.
     *
     * @return \Twig_NodeInterface
     */
    public function traverse(\Twig_NodeInterface $node)
    {
        ksort($this->visitors);
        foreach ($this->visitors as $visitors) {
            foreach ($visitors as $visitor) {
                $node = $this->traverseForVisitor($visitor, $node);
            }
        }

return $node;
    }

protected function traverseForVisitor(NodeVisitorInterface $visitor, \Twig_NodeInterface $node = null)
    {
        if (null === $node) {
            return;
        }

$node = $visitor->enterNode($node, $this->env);

foreach ($node as $k => $n) {
            if (null === $n) {
                continue;
            }

if (false !== ($m = $this->traverseForVisitor($visitor, $n)) && null !== $m) {
                if ($m !== $n) {
                    $node->setNode($k, $m);
                }
            } else {
                $node->removeNode($k);
            }
        }

return $visitor->leaveNode($node, $this->env);
    }
}

class_alias('Twig\NodeTraverser', 'Twig_NodeTraverser');

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Editing: NodeTraverser.php

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