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<?php

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* This file is part of Twig.

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* (c) Fabien Potencier

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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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namespace WPML\Core\Twig\NodeVisitor;

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use WPML\Core\Twig\Environment;

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use WPML\Core\Twig\Node\Node;

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/**

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* Used to make node visitors compatible with Twig 1.x and 2.x.

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* To be removed in Twig 3.1.

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* @author Fabien Potencier <fabien@symfony.com>

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abstract class AbstractNodeVisitor implements \WPML\Core\Twig\NodeVisitor\NodeVisitorInterface

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{

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public final function enterNode(\WPML\Core\Twig_NodeInterface $node, \WPML\Core\Twig\Environment $env)

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{

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if (!$node instanceof \WPML\Core\Twig\Node\Node) {

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throw new \LogicException(\sprintf('%s only supports \\Twig\\Node\\Node instances.', __CLASS__));

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}

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return $this->doEnterNode($node, $env);

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}

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public final function leaveNode(\WPML\Core\Twig_NodeInterface $node, \WPML\Core\Twig\Environment $env)

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{

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if (!$node instanceof \WPML\Core\Twig\Node\Node) {

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throw new \LogicException(\sprintf('%s only supports \\Twig\\Node\\Node instances.', __CLASS__));

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}

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return $this->doLeaveNode($node, $env);

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}

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/**

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* Called before child nodes are visited.

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* @return Node The modified node

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protected abstract function doEnterNode(\WPML\Core\Twig\Node\Node $node, \WPML\Core\Twig\Environment $env);

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/**

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* Called after child nodes are visited.

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* @return Node|false|null The modified node or null if the node must be removed

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protected abstract function doLeaveNode(\WPML\Core\Twig\Node\Node $node, \WPML\Core\Twig\Environment $env);

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}

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\class_alias('WPML\\Core\\Twig\\NodeVisitor\\AbstractNodeVisitor', 'WPML\\Core\\Twig_BaseNodeVisitor');

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