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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 * Interface implemented by extension classes.
14 *
15 * @author Fabien Potencier <fabien@symfony.com>
16 */
17interface Twig_ExtensionInterface
18{
19 /**
20 * Initializes the runtime environment.
21 *
22 * This is where you can load some file that contains filter functions for instance.
23 *
24 * @param Twig_Environment $environment The current Twig_Environment instance
25 */
26 public function initRuntime(Twig_Environment $environment);
27
28 /**
29 * Returns the token parser instances to add to the existing list.
30 *
31 * @return array An array of Twig_TokenParserInterface or Twig_TokenParserBrokerInterface instances
32 */
33 public function getTokenParsers();
34
35 /**
36 * Returns the node visitor instances to add to the existing list.
37 *
38 * @return array An array of Twig_NodeVisitorInterface instances
39 */
40 public function getNodeVisitors();
41
42 /**
43 * Returns a list of filters to add to the existing list.
44 *
45 * @return array An array of filters
46 */
47 public function getFilters();
48
49 /**
50 * Returns a list of tests to add to the existing list.
51 *
52 * @return array An array of tests
53 */
54 public function getTests();
55
56 /**
57 * Returns a list of functions to add to the existing list.
58 *
59 * @return array An array of functions
60 */
61 public function getFunctions();
62
63 /**
64 * Returns a list of operators to add to the existing list.
65 *
66 * @return array An array of operators
67 */
68 public function getOperators();
69
70 /**
71 * Returns a list of global variables to add to the existing list.
72 *
73 * @return array An array of global variables
74 */
75 public function getGlobals();
76
77 /**
78 * Returns the name of the extension.
79 *
80 * @return string The extension name
81 */
82 public function getName();
83}