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<?php
/*
* This file is part of Twig.
*
* (c) 2010 Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Represents a template function.
*
* @package twig
* @author Fabien Potencier <fabien@symfony.com>
*/
abstract class Twig_Function implements Twig_FunctionInterface
{
protected $options;
protected $arguments = array();
public function __construct(array $options = array())
{
$this->options = array_merge(array(
'needs_environment' => false,
'needs_context' => false,
), $options);
}
public function setArguments($arguments)
{
$this->arguments = $arguments;
}
public function getArguments()
{
return $this->arguments;
}
public function needsEnvironment()
{
return $this->options['needs_environment'];
}
public function needsContext()
{
return $this->options['needs_context'];
}
public function getSafe(Twig_Node $functionArgs)
{
if (isset($this->options['is_safe'])) {
return $this->options['is_safe'];
}
if (isset($this->options['is_safe_callback'])) {
return call_user_func($this->options['is_safe_callback'], $functionArgs);
}
return array();
}
}