ClosureFinisher.php

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<?php
declare(strict_types = 1);
namespace TYPO3\CMS\Form\Domain\Finishers;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It originated from the Neos.Form package (www.neos.io)
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

use TYPO3\CMS\Form\Domain\Finishers\Exception\FinisherException;

class ClosureFinisher extends AbstractFinisher
{

    protected $defaultOptions = [
        'closure' => null
    ];

    protected function executeInternal()
    {
        $closure = $this->parseOption('closure');
        if ($closure === null) {
            return;
        }
        if (!$closure instanceof \Closure) {
            throw new FinisherException(sprintf('The option "closure" must be of type Closure, "%s" given.', gettype($closure)), 1332155239);
        }
        $closure($this->finisherContext);
    }
}