vendor/symfony/translation/Translator.php

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<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Translation;

use Symfony\Component\Config\ConfigCacheFactory;
use Symfony\Component\Config\ConfigCacheFactoryInterface;
use Symfony\Component\Config\ConfigCacheInterface;
use Symfony\Component\Translation\Exception\InvalidArgumentException;
use Symfony\Component\Translation\Exception\NotFoundResourceException;
use Symfony\Component\Translation\Exception\RuntimeException;
use Symfony\Component\Translation\Formatter\IntlFormatterInterface;
use Symfony\Component\Translation\Formatter\MessageFormatter;
use Symfony\Component\Translation\Formatter\MessageFormatterInterface;
use Symfony\Component\Translation\Loader\LoaderInterface;
use Symfony\Contracts\Translation\LocaleAwareInterface;
use Symfony\Contracts\Translation\TranslatorInterface;

// Help opcache.preload discover always-needed symbols
class_exists(MessageCatalogue::class);

/**
 * @author Fabien Potencier <fabien@symfony.com>
 */
class Translator implements TranslatorInterface, TranslatorBagInterface, LocaleAwareInterface
{
    /**
     * @var MessageCatalogueInterface[]
     */
    protected $catalogues = [];

    /**
     * @var string
     */
    private $locale;

    /**
     * @var string[]
     */
    private $fallbackLocales = [];

    /**
     * @var LoaderInterface[]
     */
    private $loaders = [];

    /**
     * @var array
     */
    private $resources = [];

    /**