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<?php |
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declare(strict_types=1); |
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namespace JMS\Serializer\Handler; |
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use JMS\Serializer\Exception\InvalidMetadataException; |
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use JMS\Serializer\Exception\RuntimeException; |
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use JMS\Serializer\GraphNavigatorInterface; |
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use JMS\Serializer\SerializationContext; |
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use JMS\Serializer\Visitor\DeserializationVisitorInterface; |
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use JMS\Serializer\Visitor\SerializationVisitorInterface; |
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final class EnumHandler implements SubscribingHandlerInterface |
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{ |
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/** |
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* {@inheritdoc} |
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*/ |
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public static function getSubscribingMethods() |
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{ |
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$methods = []; |
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foreach (['json', 'xml'] as $format) { |
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$methods[] = [ |
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'type' => 'enum', |
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'direction' => GraphNavigatorInterface::DIRECTION_DESERIALIZATION, |
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'format' => $format, |
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'method' => 'deserializeEnum', |
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]; |
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$methods[] = [ |
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'type' => 'enum', |
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'format' => $format, |
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'direction' => GraphNavigatorInterface::DIRECTION_SERIALIZATION, |
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'method' => 'serializeEnum', |
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]; |
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} |
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return $methods; |
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} |
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public function serializeEnum( |
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SerializationVisitorInterface $visitor, |
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\UnitEnum $enum, |
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array $type, |
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SerializationContext $context |
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) { |
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if (isset($type['params'][1]) && 'value' === $type['params'][1]) { |
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if (!$enum instanceof \BackedEnum) { |
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throw new InvalidMetadataException(sprintf('The type "%s" is not a backed enum, thus you can not use "value" as serialization mode for its value.', get_class($enum))); |
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} |
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$valueType = isset($type['params'][2]) ? ['name' => $type['params'][2]] : null; |
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return $context->getNavigator()->accept($enum->value, $valueType); |
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} else { |
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return $context->getNavigator()->accept($enum->name); |
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} |
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} |
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/** |
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* @param int|string|\SimpleXMLElement $data |
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* @param array $type |
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*/ |
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public function deserializeEnum(DeserializationVisitorInterface $visitor, $data, array $type): ?\UnitEnum |
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{ |
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$enumType = $type['params'][0]; |
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$caseValue = (string) $data; |
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$ref = new \ReflectionEnum($enumType); |
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if (isset($type['params'][1]) && 'value' === $type['params'][1] || (!isset($type['params'][1]) && is_a($enumType, \BackedEnum::class, true))) { |
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if (!is_a($enumType, \BackedEnum::class, true)) { |
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throw new InvalidMetadataException(sprintf('The type "%s" is not a backed enum, thus you can not use "value" as serialization mode for its value.', $enumType)); |
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} |
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if ('int' === $ref->getBackingType()->getName()) { |
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if (!is_numeric($caseValue)) { |
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throw new RuntimeException(sprintf('"%s" is not a valid backing value for enum "%s"', $caseValue, $enumType)); |
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} |
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$caseValue = (int) $caseValue; |
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} |
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return $enumType::from($caseValue); |
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} else { |
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if (!$ref->hasCase($caseValue)) { |
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throw new InvalidMetadataException(sprintf('The type "%s" does not have the case "%s"', $ref->getName(), $caseValue)); |
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} |
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return $ref->getCase($caseValue)->getValue(); |
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} |
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} |
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} |
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schmittjoh /
serializer
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.