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- 27.10.2014
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NodeVisitorInterface.php
01 <?php
02
03 /*
04 * This file is part of Twig.
05 *
06 * (c) 2009 Fabien Potencier
07 *
08 * For the full copyright and license information, please view the LICENSE
09 * 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 integer The priority level
45 */
46 public function getPriority();
47 }
48