<?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\Serializer\Extractor;

use Symfony\Component\PropertyInfo\PropertyListExtractorInterface;

/**
 * @author David Maicher <mail@dmaicher.de>
 *
 * @experimental in 4.3
 */
final class ObjectPropertyListExtractor implements ObjectPropertyListExtractorInterface
{
    private $propertyListExtractor;
    private $objectClassResolver;

    public function __construct(PropertyListExtractorInterface $propertyListExtractor, ?callable $objectClassResolver = null)
    {
        $this->propertyListExtractor = $propertyListExtractor;
        $this->objectClassResolver = $objectClassResolver;
    }

    /**
     * {@inheritdoc}
     */
    public function getProperties($object, array $context = []): ?array
    {
        $class = $this->objectClassResolver ? ($this->objectClassResolver)($object) : \get_class($object);

        return $this->propertyListExtractor->getProperties($class, $context);
    }
}

<?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\Serializer\Extractor;

use Symfony\Component\PropertyInfo\PropertyListExtractorInterface;

/**
 * @author David Maicher <mail@dmaicher.de>
 *
 * @experimental in 4.3
 */
final class ObjectPropertyListExtractor implements ObjectPropertyListExtractorInterface
{
    private $propertyListExtractor;
    private $objectClassResolver;

    public function __construct(PropertyListExtractorInterface $propertyListExtractor, callable $objectClassResolver = null)
    {
        $this->propertyListExtractor = $propertyListExtractor;
        $this->objectClassResolver = $objectClassResolver;
    }

    /**
     * {@inheritdoc}
     */
    public function getProperties($object, array $context = []): ?array
    {
        $class = $this->objectClassResolver ? ($this->objectClassResolver)($object) : \get_class($object);

        return $this->propertyListExtractor->getProperties($class, $context);
    }
}

Fix CS regarding nullable arguments
Fix CS regarding nullable arguments

