NodeVisitorInterface.php (1371B)
1 <?php 2 3 /* 4 * This file is part of Twig. 5 * 6 * (c) 2009 Fabien Potencier 7 * 8 * For the full copyright and license information, please view the LICENSE 9 * file that was distributed with this source code. 10 */ 11 12 /** 13 * Twig_NodeVisitorInterface is the interface the all node visitor classes must implement. 14 * 15 * @author Fabien Potencier <fabien@symfony.com> 16 */ 17 interface Twig_NodeVisitorInterface 18 { 19 /** 20 * Called before child nodes are visited. 21 * 22 * @param Twig_NodeInterface $node The node to visit 23 * @param Twig_Environment $env The Twig environment instance 24 * 25 * @return Twig_NodeInterface The modified node 26 */ 27 public function enterNode(Twig_NodeInterface $node, Twig_Environment $env); 28 29 /** 30 * Called after child nodes are visited. 31 * 32 * @param Twig_NodeInterface $node The node to visit 33 * @param Twig_Environment $env The Twig environment instance 34 * 35 * @return Twig_NodeInterface|false The modified node or false if the node must be removed 36 */ 37 public function leaveNode(Twig_NodeInterface $node, Twig_Environment $env); 38 39 /** 40 * Returns the priority for this visitor. 41 * 42 * Priority should be between -10 and 10 (0 is the default). 43 * 44 * @return int The priority level 45 */ 46 public function getPriority(); 47 }