<?php /* * This file is part of Twig. * * (c) 2009 Fabien Potencier * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * Twig_NodeVisitorInterface is the interface the all node visitor classes must implement. * * @package twig * @author Fabien Potencier <fabien@symfony.com> */ interface Twig_NodeVisitorInterface { /** * Called before child nodes are visited. * * @param Twig_NodeInterface $node The node to visit * @param Twig_Environment $env The Twig environment instance * * @return Twig_NodeInterface The modified node */ function enterNode(Twig_NodeInterface $node, Twig_Environment $env); /** * Called after child nodes are visited. * * @param Twig_NodeInterface $node The node to visit * @param Twig_Environment $env The Twig environment instance * * @return Twig_NodeInterface The modified node */ function leaveNode(Twig_NodeInterface $node, Twig_Environment $env); /** * Returns the priority for this visitor. * * Priority should be between -10 and 10 (0 is the default). * * @return integer The priority level */ function getPriority(); }