vendor/symfony/translation/DataCollectorTranslator.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\HttpKernel\CacheWarmer\WarmableInterface;
use Symfony\Component\Translation\Exception\InvalidArgumentException;
use Symfony\Contracts\Translation\LocaleAwareInterface;
use Symfony\Contracts\Translation\TranslatorInterface;

/**
 * @author Abdellatif Ait boudad <a.aitboudad@gmail.com>
 */
class DataCollectorTranslator implements TranslatorInterface, TranslatorBagInterface, LocaleAwareInterface, WarmableInterface
{
    public const MESSAGE_DEFINED = 0;
    public const MESSAGE_MISSING = 1;
    public const MESSAGE_EQUALS_FALLBACK = 2;

    private $translator;
    private $messages = [];

    /**
     * @param TranslatorInterface&TranslatorBagInterface&LocaleAwareInterface $translator
     */
    public function __construct(TranslatorInterface $translator)
    {
        if (!$translator instanceof TranslatorBagInterface || !$translator instanceof LocaleAwareInterface) {
            throw new InvalidArgumentException(sprintf('The Translator "%s" must implement TranslatorInterface, TranslatorBagInterface and LocaleAwareInterface.', get_debug_type($translator)));
        }

        $this->translator = $translator;
    }

    /**
     * {@inheritdoc}
     */
    public function trans(?string $id, array $parameters = [], string $domain = null, string $locale = null)
    {
        $trans = $this->translator->trans($id = (string) $id, $parameters, $domain, $locale);
        $this->collectMessage($locale, $domain, $id, $trans, $parameters);

        return $trans;
    }

    /**
     * {@inheritdoc}
     */
    public function setLocale(string $locale)
    {
        $this->translator->setLocale($locale);
    }