<?php

declare(strict_types=1);

/*
 * This file is part of the TYPO3 CMS project.
 *
 * 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!
 */

namespace TYPO3\CMS\Frontend\ContentObject;

/**
 * A simple key/value store. See class RegisterStack for more information.
 *
 * @internal This class is not part of the TYPO3 Core API
 */
final class Register
{
    private array $keyValues = [];

    /**
     * Unable to deal with objects, accepts simple types only.
     * This is done by intention to not run into issues if this
     * state needs to be serialized (cached).
     */
    public function set(string $key, string|int|bool|float $value): void
    {
        $this->keyValues[$key] = $value;
    }

    public function get(string $key, string|int|bool|float|null $default = null): string|int|bool|float|null
    {
        return $this->keyValues[$key] ?? $default;
    }
}