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<?php
/*
* This file is part of Twig.
*
* (c) Fabien Potencier
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Twig;
use Twig\Node\Expression\FunctionExpression;
use Twig\Node\Node;
/**
* Represents a template function.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @see https://twig.symfony.com/doc/templates.html#functions
*/
final class TwigFunction extends AbstractTwigCallable
{
/**
* @param callable|array{class-string, string}|null $callable A callable implementing the function. If null, you need to overwrite the "node_class" option to customize compilation.
*/
public function __construct(string $name, $callable = null, array $options = [])
{
parent::__construct($name, $callable, $options);
$this->options = array_merge([
'is_safe' => null,
'is_safe_callback' => null,
'node_class' => FunctionExpression::class,
'parser_callable' => null,
], $this->options);
}
public function getType(): string
{
return 'function';
}
public function getParserCallable(): ?callable
{
return $this->options['parser_callable'];
}
public function getSafe(Node $functionArgs): ?array
{
if (null !== $this->options['is_safe']) {
return $this->options['is_safe'];
}
if (null !== $this->options['is_safe_callback']) {
return $this->options['is_safe_callback']($functionArgs);
}
return [];
}
}
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