234 lines
10 KiB
PHP
234 lines
10 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Serializer\Mapping\Loader;
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use Symfony\Component\Serializer\Attribute\Context;
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use Symfony\Component\Serializer\Attribute\DiscriminatorMap;
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use Symfony\Component\Serializer\Attribute\Groups;
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use Symfony\Component\Serializer\Attribute\Ignore;
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use Symfony\Component\Serializer\Attribute\MaxDepth;
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use Symfony\Component\Serializer\Attribute\SerializedName;
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use Symfony\Component\Serializer\Attribute\SerializedPath;
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use Symfony\Component\Serializer\Exception\MappingException;
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use Symfony\Component\Serializer\Mapping\AttributeMetadata;
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use Symfony\Component\Serializer\Mapping\AttributeMetadataInterface;
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use Symfony\Component\Serializer\Mapping\ClassDiscriminatorMapping;
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use Symfony\Component\Serializer\Mapping\ClassMetadataInterface;
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/**
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* Loader for PHP attributes.
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*
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* @author Kévin Dunglas <dunglas@gmail.com>
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* @author Alexander M. Turek <me@derrabus.de>
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* @author Alexandre Daubois <alex.daubois@gmail.com>
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*/
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class AttributeLoader implements LoaderInterface
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{
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private const KNOWN_ATTRIBUTES = [
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DiscriminatorMap::class,
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Groups::class,
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Ignore::class,
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MaxDepth::class,
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SerializedName::class,
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SerializedPath::class,
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Context::class,
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];
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public function __construct()
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{
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}
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public function loadClassMetadata(ClassMetadataInterface $classMetadata): bool
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{
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$reflectionClass = $classMetadata->getReflectionClass();
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$className = $reflectionClass->name;
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$loaded = false;
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$classGroups = [];
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$classContextAnnotation = null;
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$attributesMetadata = $classMetadata->getAttributesMetadata();
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foreach ($this->loadAttributes($reflectionClass) as $annotation) {
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if ($annotation instanceof DiscriminatorMap) {
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$classMetadata->setClassDiscriminatorMapping(new ClassDiscriminatorMapping(
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$annotation->getTypeProperty(),
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$annotation->getMapping()
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));
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continue;
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}
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if ($annotation instanceof Groups) {
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$classGroups = $annotation->getGroups();
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continue;
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}
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if ($annotation instanceof Context) {
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$classContextAnnotation = $annotation;
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}
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}
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foreach ($reflectionClass->getProperties() as $property) {
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if (!isset($attributesMetadata[$property->name])) {
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$attributesMetadata[$property->name] = new AttributeMetadata($property->name);
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$classMetadata->addAttributeMetadata($attributesMetadata[$property->name]);
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}
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if ($property->getDeclaringClass()->name === $className) {
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if ($classContextAnnotation) {
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$this->setAttributeContextsForGroups($classContextAnnotation, $attributesMetadata[$property->name]);
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}
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foreach ($classGroups as $group) {
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$attributesMetadata[$property->name]->addGroup($group);
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}
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foreach ($this->loadAttributes($property) as $annotation) {
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if ($annotation instanceof Groups) {
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foreach ($annotation->getGroups() as $group) {
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$attributesMetadata[$property->name]->addGroup($group);
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}
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} elseif ($annotation instanceof MaxDepth) {
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$attributesMetadata[$property->name]->setMaxDepth($annotation->getMaxDepth());
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} elseif ($annotation instanceof SerializedName) {
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$attributesMetadata[$property->name]->setSerializedName($annotation->getSerializedName());
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} elseif ($annotation instanceof SerializedPath) {
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$attributesMetadata[$property->name]->setSerializedPath($annotation->getSerializedPath());
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} elseif ($annotation instanceof Ignore) {
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$attributesMetadata[$property->name]->setIgnore(true);
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} elseif ($annotation instanceof Context) {
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$this->setAttributeContextsForGroups($annotation, $attributesMetadata[$property->name]);
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}
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$loaded = true;
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}
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}
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}
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foreach ($reflectionClass->getMethods() as $method) {
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if ($method->getDeclaringClass()->name !== $className) {
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continue;
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}
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if (0 === stripos($method->name, 'get') && $method->getNumberOfRequiredParameters()) {
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continue; /* matches the BC behavior in `Symfony\Component\Serializer\Normalizer\ObjectNormalizer::extractAttributes` */
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}
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$accessorOrMutator = preg_match('/^(get|is|has|set)(.+)$/i', $method->name, $matches);
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if ($accessorOrMutator) {
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$attributeName = lcfirst($matches[2]);
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if (isset($attributesMetadata[$attributeName])) {
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$attributeMetadata = $attributesMetadata[$attributeName];
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} else {
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$attributesMetadata[$attributeName] = $attributeMetadata = new AttributeMetadata($attributeName);
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$classMetadata->addAttributeMetadata($attributeMetadata);
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}
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}
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foreach ($this->loadAttributes($method) as $annotation) {
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if ($annotation instanceof Groups) {
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if (!$accessorOrMutator) {
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throw new MappingException(sprintf('Groups on "%s::%s()" cannot be added. Groups can only be added on methods beginning with "get", "is", "has" or "set".', $className, $method->name));
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}
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foreach ($annotation->getGroups() as $group) {
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$attributeMetadata->addGroup($group);
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}
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} elseif ($annotation instanceof MaxDepth) {
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if (!$accessorOrMutator) {
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throw new MappingException(sprintf('MaxDepth on "%s::%s()" cannot be added. MaxDepth can only be added on methods beginning with "get", "is", "has" or "set".', $className, $method->name));
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}
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$attributeMetadata->setMaxDepth($annotation->getMaxDepth());
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} elseif ($annotation instanceof SerializedName) {
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if (!$accessorOrMutator) {
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throw new MappingException(sprintf('SerializedName on "%s::%s()" cannot be added. SerializedName can only be added on methods beginning with "get", "is", "has" or "set".', $className, $method->name));
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}
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$attributeMetadata->setSerializedName($annotation->getSerializedName());
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} elseif ($annotation instanceof SerializedPath) {
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if (!$accessorOrMutator) {
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throw new MappingException(sprintf('SerializedPath on "%s::%s()" cannot be added. SerializedPath can only be added on methods beginning with "get", "is", "has" or "set".', $className, $method->name));
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}
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$attributeMetadata->setSerializedPath($annotation->getSerializedPath());
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} elseif ($annotation instanceof Ignore) {
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if ($accessorOrMutator) {
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$attributeMetadata->setIgnore(true);
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}
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} elseif ($annotation instanceof Context) {
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if (!$accessorOrMutator) {
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throw new MappingException(sprintf('Context on "%s::%s()" cannot be added. Context can only be added on methods beginning with "get", "is", "has" or "set".', $className, $method->name));
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}
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$this->setAttributeContextsForGroups($annotation, $attributeMetadata);
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}
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$loaded = true;
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}
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}
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return $loaded;
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}
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private function loadAttributes(\ReflectionMethod|\ReflectionClass|\ReflectionProperty $reflector): iterable
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{
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foreach ($reflector->getAttributes() as $attribute) {
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if ($this->isKnownAttribute($attribute->getName())) {
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try {
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yield $attribute->newInstance();
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} catch (\Error $e) {
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if (\Error::class !== $e::class) {
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throw $e;
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}
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$on = match (true) {
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$reflector instanceof \ReflectionClass => ' on class '.$reflector->name,
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$reflector instanceof \ReflectionMethod => sprintf(' on "%s::%s()"', $reflector->getDeclaringClass()->name, $reflector->name),
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$reflector instanceof \ReflectionProperty => sprintf(' on "%s::$%s"', $reflector->getDeclaringClass()->name, $reflector->name),
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default => '',
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};
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throw new MappingException(sprintf('Could not instantiate attribute "%s"%s.', $attribute->getName(), $on), 0, $e);
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}
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}
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}
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}
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private function setAttributeContextsForGroups(Context $annotation, AttributeMetadataInterface $attributeMetadata): void
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{
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if ($annotation->getContext()) {
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$attributeMetadata->setNormalizationContextForGroups($annotation->getContext(), $annotation->getGroups());
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$attributeMetadata->setDenormalizationContextForGroups($annotation->getContext(), $annotation->getGroups());
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}
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if ($annotation->getNormalizationContext()) {
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$attributeMetadata->setNormalizationContextForGroups($annotation->getNormalizationContext(), $annotation->getGroups());
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}
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if ($annotation->getDenormalizationContext()) {
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$attributeMetadata->setDenormalizationContextForGroups($annotation->getDenormalizationContext(), $annotation->getGroups());
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}
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}
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private function isKnownAttribute(string $attributeName): bool
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{
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foreach (self::KNOWN_ATTRIBUTES as $knownAttribute) {
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if (is_a($attributeName, $knownAttribute, true)) {
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return true;
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}
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}
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return false;
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}
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}
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