1 <?php

     2 

     3 /*

     4  * This file is part of Twig.

     5  *

     6  * (c) 2010 Fabien Potencier

     7  * (c) 2010 Arnaud Le Blanc

     8  *

     9  * For the full copyright and license information, please view the LICENSE

    10  * file that was distributed with this source code.

    11  */

    12 

    13 /**

    14  * Represents a template function.

    15  *

    16  * @package    twig

    17  * @author     Arnaud Le Blanc <arnaud.lb@gmail.com>

    18  */

    19 interface Twig_FunctionInterface

    20 {

    21     /**

    22      * Compiles a function.

    23      *

    24      * @return string The PHP code for the function

    25      */

    26     function compile();

    27 

    28     function needsEnvironment();

    29 

    30     function needsContext();

    31 

    32     function getSafe(Twig_Node $filterArgs);

    33 }