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52 lines
1.2 KiB
PHP
52 lines
1.2 KiB
PHP
<?php
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/*
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* This file is part of Twig.
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*
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* (c) 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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namespace Twig\NodeVisitor;
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use Twig\Environment;
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use Twig\Node\Node;
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/**
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* Interface for node visitor classes.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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interface NodeVisitorInterface
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{
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/**
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* Called before child nodes are visited.
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*
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* @return Node The modified node
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*/
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public function enterNode(Node $node, Environment $env);
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/**
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* Called after child nodes are visited.
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*
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* @return Node|null The modified node or null if the node must be removed
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*/
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public function leaveNode(Node $node, Environment $env);
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/**
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* Returns the priority for this visitor.
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*
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* Priority should be between -10 and 10 (0 is the default).
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*
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* @return int The priority level
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*/
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public function getPriority();
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}
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class_alias('Twig\NodeVisitor\NodeVisitorInterface', 'Twig_NodeVisitorInterface');
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// Ensure that the aliased name is loaded to keep BC for classes implementing the typehint with the old aliased name.
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class_exists('Twig\Environment');
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