<?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\Normalizer;

use Symfony\Component\Serializer\Exception\CircularReferenceException;
use Symfony\Component\Serializer\Exception\InvalidArgumentException;
use Symfony\Component\Serializer\Exception\LogicException;

/**
 * Defines the interface of normalizers.
 *
 * @author Jordi Boggiano <j.boggiano@seld.be>
 */
interface NormalizerInterface
{
    /**
     * Normalizes an object into a set of arrays/scalars.
     *
     * @param object $object  Object to normalize
     * @param string $format  Format the normalization result will be encoded as
     * @param array  $context Context options for the normalizer
     *
     * @return array|string|int|float|bool
     *
     * @throws InvalidArgumentException   Occurs when the object given is not an attempted type for the normalizer
     * @throws CircularReferenceException Occurs when the normalizer detects a circular reference when no circular
     *                                    reference handler can fix it
     * @throws LogicException             Occurs when the normalizer is not called in an expected context
     */
    public function normalize($object, $format = null, array $context = array());

    /**
     * Checks whether the given class is supported for normalization by this normalizer.
     *
     * @param mixed  $data   Data to normalize
     * @param string $format The format being (de-)serialized from or into
     *
     * @return bool
     */
    public function supportsNormalization($data, $format = null);
}
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