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1 <?php
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2
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3 /*
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4 * This file is part of the Symfony package.
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5 *
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6 * (c) Fabien Potencier <fabien@symfony.com>
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7 *
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8 * For the full copyright and license information, please view the LICENSE
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9 * file that was distributed with this source code.
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10 */
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11
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12 namespace Symfony\Component\Serializer\Normalizer;
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13
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14 use Symfony\Component\Serializer\Exception\InvalidArgumentException;
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15 use Symfony\Component\Serializer\Exception\LogicException;
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16
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17 /**
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18 * A normalizer that uses an objects own JsonSerializable implementation.
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19 *
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20 * @author Fred Cox <mcfedr@gmail.com>
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21 */
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22 class JsonSerializableNormalizer extends AbstractNormalizer
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23 {
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24 /**
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25 * {@inheritdoc}
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26 */
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27 public function normalize($object, $format = null, array $context = [])
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28 {
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29 if ($this->isCircularReference($object, $context)) {
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30 return $this->handleCircularReference($object);
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31 }
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32
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33 if (!$object instanceof \JsonSerializable) {
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34 throw new InvalidArgumentException(sprintf('The object must implement "%s".', \JsonSerializable::class));
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35 }
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36
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37 if (!$this->serializer instanceof NormalizerInterface) {
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38 throw new LogicException('Cannot normalize object because injected serializer is not a normalizer');
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39 }
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40
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41 return $this->serializer->normalize($object->jsonSerialize(), $format, $context);
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42 }
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43
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44 /**
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45 * {@inheritdoc}
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46 */
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47 public function supportsNormalization($data, $format = null)
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48 {
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49 return $data instanceof \JsonSerializable;
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50 }
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51
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52 /**
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53 * {@inheritdoc}
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54 */
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55 public function supportsDenormalization($data, $type, $format = null)
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56 {
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57 return false;
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58 }
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59
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60 /**
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61 * {@inheritdoc}
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62 */
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63 public function denormalize($data, $class, $format = null, array $context = [])
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64 {
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65 throw new LogicException(sprintf('Cannot denormalize with "%s".', \JsonSerializable::class));
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66 }
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67 }
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