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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\FilterExpression; use Twig\Node\Node; /** * Represents a template filter. * * @final since Twig 2.4.0 * * @author Fabien Potencier <fabien@symfony.com> * * @see https://twig.symfony.com/doc/templates.html#filters */ class TwigFilter { private $name; private $callable; private $options; private $arguments = []; /** * Creates a template filter. * * @param string $name Name of this filter * @param callable|null $callable A callable implementing the filter. If null, you need to overwrite the "node_class" option to customize compilation. * @param array $options Options array */ public function __construct(string $name, $callable = null, array $options = []) { if (__CLASS__ !== \get_class($this)) { @trigger_error('Overriding '.__CLASS__.' is deprecated since Twig 2.4.0 and the class will be final in 3.0.', E_USER_DEPRECATED); } $this->name = $name; $this->callable = $callable; $this->options = array_merge([ 'needs_environment' => false, 'needs_context' => false, 'is_variadic' => false, 'is_safe' => null, 'is_safe_callback' => null, 'pre_escape' => null, 'preserves_safety' => null, 'node_class' => FilterExpression::class, 'deprecated' => false, 'alternative' => null, ], $options); } public function getName() { return $this->name; } /** * Returns the callable to execute for this filter. * * @return callable|null */ public function getCallable() { return $this->callable; } public function getNodeClass() { return $this->options['node_class']; } public function setArguments($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(Node $filterArgs) { if (null !== $this->options['is_safe']) { return $this->options['is_safe']; } if (null !== $this->options['is_safe_callback']) { return $this->options['is_safe_callback']($filterArgs); } } public function getPreservesSafety() { return $this->options['preserves_safety']; } public function getPreEscape() { return $this->options['pre_escape']; } public function isVariadic() { return $this->options['is_variadic']; } public function isDeprecated() { return (bool) $this->options['deprecated']; } public function getDeprecatedVersion() { return $this->options['deprecated']; } public function getAlternative() { return $this->options['alternative']; } } // For Twig 1.x compatibility class_alias('Twig\TwigFilter', 'Twig_SimpleFilter', false); class_alias('Twig\TwigFilter', 'Twig_Filter'); // Ensure that the aliased name is loaded to keep BC for classes implementing the typehint with the old aliased name. class_exists('Twig\Node\Node');