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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\HttpKernel\Controller\ArgumentResolver;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Session\SessionInterface;
use Symfony\Component\HttpKernel\Controller\ValueResolverInterface;
use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;

/**
 * Yields the Session.
 *
 * @author Iltar van der Berg <kjarli@gmail.com>
 */
final class SessionValueResolver implements ValueResolverInterface
{
    public function resolve(Request $request, ArgumentMetadata $argument): array
    {
        if (!$request->hasSession()) {
            return [];
        }

$type = $argument->getType();
        if (SessionInterface::class !== $type && !is_subclass_of($type, SessionInterface::class)) {
            return [];
        }

return $request->getSession() instanceof $type ? [$request->getSession()] : [];
    }
}