516 lines
16 KiB
PHP
516 lines
16 KiB
PHP
<?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\Validator\Mapping;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\Constraints\Cascade;
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use Symfony\Component\Validator\Constraints\Composite;
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use Symfony\Component\Validator\Constraints\GroupSequence;
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use Symfony\Component\Validator\Constraints\Traverse;
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use Symfony\Component\Validator\Constraints\Valid;
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use Symfony\Component\Validator\Exception\ConstraintDefinitionException;
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use Symfony\Component\Validator\Exception\GroupDefinitionException;
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use Symfony\Component\Validator\GroupSequenceProviderInterface;
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/**
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* Default implementation of {@link ClassMetadataInterface}.
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*
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* This class supports serialization and cloning.
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class ClassMetadata extends GenericMetadata implements ClassMetadataInterface
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{
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/**
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link getClassName()} instead.
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*/
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public string $name;
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/**
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link getDefaultGroup()} instead.
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*/
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public string $defaultGroup;
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/**
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* @var MemberMetadata[][]
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*
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link getPropertyMetadata()} instead.
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*/
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public array $members = [];
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/**
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* @var PropertyMetadata[]
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*
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link getPropertyMetadata()} instead.
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*/
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public array $properties = [];
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/**
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* @var GetterMetadata[]
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*
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link getPropertyMetadata()} instead.
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*/
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public array $getters = [];
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/**
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link getGroupSequence()} instead.
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*/
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public ?GroupSequence $groupSequence = null;
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/**
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link isGroupSequenceProvider()} instead.
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*/
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public bool $groupSequenceProvider = false;
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/**
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link getGroupProvider()} instead.
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*/
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public ?string $groupProvider = null;
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/**
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* The strategy for traversing traversable objects.
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*
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* By default, only instances of {@link \Traversable} are traversed.
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*
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* @var TraversalStrategy::*
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*
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* @internal This property is public in order to reduce the size of the
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* class' serialized representation. Do not access it. Use
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* {@link getTraversalStrategy()} instead.
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*/
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public int $traversalStrategy = TraversalStrategy::IMPLICIT;
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private \ReflectionClass $reflClass;
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public function __construct(string $class)
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{
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$this->name = $class;
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// class name without namespace
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if (false !== $nsSep = strrpos($class, '\\')) {
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$this->defaultGroup = substr($class, $nsSep + 1);
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} else {
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$this->defaultGroup = $class;
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}
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}
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public function __sleep(): array
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{
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$parentProperties = parent::__sleep();
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// Don't store the cascading strategy. Classes never cascade.
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unset($parentProperties[array_search('cascadingStrategy', $parentProperties)]);
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return array_merge($parentProperties, [
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'getters',
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'groupSequence',
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'groupSequenceProvider',
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'groupProvider',
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'members',
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'name',
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'properties',
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'defaultGroup',
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]);
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}
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public function getClassName(): string
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{
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return $this->name;
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}
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/**
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* Returns the name of the default group for this class.
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*
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* For each class, the group "Default" is an alias for the group
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* "<ClassName>", where <ClassName> is the non-namespaced name of the
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* class. All constraints implicitly or explicitly assigned to group
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* "Default" belong to both of these groups, unless the class defines
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* a group sequence.
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*
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* If a class defines a group sequence, validating the class in "Default"
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* will validate the group sequence. The constraints assigned to "Default"
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* can still be validated by validating the class in "<ClassName>".
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*/
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public function getDefaultGroup(): string
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{
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return $this->defaultGroup;
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}
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/**
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* If the constraint {@link Cascade} is added, the cascading strategy will be
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* changed to {@link CascadingStrategy::CASCADE}.
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*
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* If the constraint {@link Traverse} is added, the traversal strategy will be
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* changed. Depending on the $traverse property of that constraint,
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* the traversal strategy will be set to one of the following:
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*
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* - {@link TraversalStrategy::IMPLICIT} by default
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* - {@link TraversalStrategy::NONE} if $traverse is disabled
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* - {@link TraversalStrategy::TRAVERSE} if $traverse is enabled
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*/
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public function addConstraint(Constraint $constraint): static
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{
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$this->checkConstraint($constraint);
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if ($constraint instanceof Traverse) {
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if ($constraint->traverse) {
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// If traverse is true, traversal should be explicitly enabled
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$this->traversalStrategy = TraversalStrategy::TRAVERSE;
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} else {
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// If traverse is false, traversal should be explicitly disabled
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$this->traversalStrategy = TraversalStrategy::NONE;
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}
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// The constraint is not added
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return $this;
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}
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if ($constraint instanceof Cascade) {
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$this->cascadingStrategy = CascadingStrategy::CASCADE;
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foreach ($this->getReflectionClass()->getProperties() as $property) {
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if (isset($constraint->exclude[$property->getName()])) {
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continue;
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}
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if ($this->canCascade($property->getType())) {
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$this->addPropertyConstraint($property->getName(), new Valid());
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}
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}
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// The constraint is not added
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return $this;
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}
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$constraint->addImplicitGroupName($this->getDefaultGroup());
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parent::addConstraint($constraint);
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return $this;
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}
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/**
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* Adds a constraint to the given property.
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*
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* @return $this
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*/
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public function addPropertyConstraint(string $property, Constraint $constraint): static
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{
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if (!isset($this->properties[$property])) {
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$this->properties[$property] = new PropertyMetadata($this->getClassName(), $property);
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$this->addPropertyMetadata($this->properties[$property]);
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}
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$constraint->addImplicitGroupName($this->getDefaultGroup());
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$this->properties[$property]->addConstraint($constraint);
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return $this;
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}
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/**
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* @param Constraint[] $constraints
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*
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* @return $this
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*/
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public function addPropertyConstraints(string $property, array $constraints): static
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{
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foreach ($constraints as $constraint) {
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$this->addPropertyConstraint($property, $constraint);
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}
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return $this;
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}
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/**
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* Adds a constraint to the getter of the given property.
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*
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* The name of the getter is assumed to be the name of the property with an
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* uppercased first letter and the prefix "get", "is" or "has".
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*
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* @return $this
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*/
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public function addGetterConstraint(string $property, Constraint $constraint): static
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{
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if (!isset($this->getters[$property])) {
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$this->getters[$property] = new GetterMetadata($this->getClassName(), $property);
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$this->addPropertyMetadata($this->getters[$property]);
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}
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$constraint->addImplicitGroupName($this->getDefaultGroup());
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$this->getters[$property]->addConstraint($constraint);
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return $this;
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}
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/**
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* Adds a constraint to the getter of the given property.
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*
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* @return $this
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*/
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public function addGetterMethodConstraint(string $property, string $method, Constraint $constraint): static
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{
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if (!isset($this->getters[$property])) {
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$this->getters[$property] = new GetterMetadata($this->getClassName(), $property, $method);
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$this->addPropertyMetadata($this->getters[$property]);
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}
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$constraint->addImplicitGroupName($this->getDefaultGroup());
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$this->getters[$property]->addConstraint($constraint);
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return $this;
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}
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/**
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* @param Constraint[] $constraints
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*
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* @return $this
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*/
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public function addGetterConstraints(string $property, array $constraints): static
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{
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foreach ($constraints as $constraint) {
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$this->addGetterConstraint($property, $constraint);
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}
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return $this;
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}
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/**
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* @param Constraint[] $constraints
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*
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* @return $this
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*/
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public function addGetterMethodConstraints(string $property, string $method, array $constraints): static
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{
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foreach ($constraints as $constraint) {
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$this->addGetterMethodConstraint($property, $method, $constraint);
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}
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return $this;
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}
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/**
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* Merges the constraints of the given metadata into this object.
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*/
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public function mergeConstraints(self $source): void
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{
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if ($source->isGroupSequenceProvider()) {
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$this->setGroupProvider($source->getGroupProvider());
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$this->setGroupSequenceProvider(true);
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}
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foreach ($source->getConstraints() as $constraint) {
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$this->addConstraint(clone $constraint);
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}
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foreach ($source->getConstrainedProperties() as $property) {
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foreach ($source->getPropertyMetadata($property) as $member) {
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$member = clone $member;
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foreach ($member->getConstraints() as $constraint) {
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if (\in_array($constraint::DEFAULT_GROUP, $constraint->groups, true)) {
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$member->constraintsByGroup[$this->getDefaultGroup()][] = $constraint;
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}
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$constraint->addImplicitGroupName($this->getDefaultGroup());
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}
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if ($member instanceof MemberMetadata && !$member->isPrivate($this->name)) {
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$property = $member->getPropertyName();
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$this->members[$property][] = $member;
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if ($member instanceof PropertyMetadata && !isset($this->properties[$property])) {
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$this->properties[$property] = $member;
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} elseif ($member instanceof GetterMetadata && !isset($this->getters[$property])) {
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$this->getters[$property] = $member;
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}
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} else {
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$this->addPropertyMetadata($member);
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}
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}
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}
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}
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public function hasPropertyMetadata(string $property): bool
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{
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return \array_key_exists($property, $this->members);
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}
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public function getPropertyMetadata(string $property): array
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{
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return $this->members[$property] ?? [];
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}
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public function getConstrainedProperties(): array
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{
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return array_keys($this->members);
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}
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/**
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* Sets the default group sequence for this class.
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*
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* @param string[]|GroupSequence $groupSequence An array of group names
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*
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* @return $this
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*
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* @throws GroupDefinitionException
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*/
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public function setGroupSequence(array|GroupSequence $groupSequence): static
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{
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if ($this->isGroupSequenceProvider()) {
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throw new GroupDefinitionException('Defining a static group sequence is not allowed with a group sequence provider.');
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}
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if (\is_array($groupSequence)) {
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$groupSequence = new GroupSequence($groupSequence);
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}
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if (\in_array(Constraint::DEFAULT_GROUP, $groupSequence->groups, true)) {
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throw new GroupDefinitionException(sprintf('The group "%s" is not allowed in group sequences.', Constraint::DEFAULT_GROUP));
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}
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if (!\in_array($this->getDefaultGroup(), $groupSequence->groups, true)) {
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throw new GroupDefinitionException(sprintf('The group "%s" is missing in the group sequence.', $this->getDefaultGroup()));
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}
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$this->groupSequence = $groupSequence;
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return $this;
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}
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public function hasGroupSequence(): bool
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{
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return isset($this->groupSequence) && \count($this->groupSequence->groups) > 0;
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}
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public function getGroupSequence(): ?GroupSequence
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{
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return $this->groupSequence;
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}
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/**
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* Returns a ReflectionClass instance for this class.
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*/
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public function getReflectionClass(): \ReflectionClass
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{
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return $this->reflClass ??= new \ReflectionClass($this->getClassName());
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}
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/**
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* Sets whether a group sequence provider should be used.
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*
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* @throws GroupDefinitionException
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*/
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public function setGroupSequenceProvider(bool $active): void
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{
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if ($this->hasGroupSequence()) {
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throw new GroupDefinitionException('Defining a group sequence provider is not allowed with a static group sequence.');
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}
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if (null === $this->groupProvider && !$this->getReflectionClass()->implementsInterface(GroupSequenceProviderInterface::class)) {
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throw new GroupDefinitionException(sprintf('Class "%s" must implement GroupSequenceProviderInterface.', $this->name));
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}
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$this->groupSequenceProvider = $active;
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}
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public function isGroupSequenceProvider(): bool
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{
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return $this->groupSequenceProvider;
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}
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public function setGroupProvider(?string $provider): void
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{
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$this->groupProvider = $provider;
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}
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public function getGroupProvider(): ?string
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{
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return $this->groupProvider;
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}
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public function getCascadingStrategy(): int
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{
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return $this->cascadingStrategy;
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}
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private function addPropertyMetadata(PropertyMetadataInterface $metadata): void
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{
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$property = $metadata->getPropertyName();
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$this->members[$property][] = $metadata;
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}
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private function checkConstraint(Constraint $constraint): void
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{
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if (!\in_array(Constraint::CLASS_CONSTRAINT, (array) $constraint->getTargets(), true)) {
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throw new ConstraintDefinitionException(sprintf('The constraint "%s" cannot be put on classes.', get_debug_type($constraint)));
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}
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if ($constraint instanceof Composite) {
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foreach ($constraint->getNestedConstraints() as $nestedConstraint) {
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$this->checkConstraint($nestedConstraint);
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}
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}
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}
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private function canCascade(?\ReflectionType $type = null): bool
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{
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if (null === $type) {
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return false;
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}
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if ($type instanceof \ReflectionIntersectionType) {
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foreach ($type->getTypes() as $nestedType) {
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if ($this->canCascade($nestedType)) {
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return true;
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}
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}
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return false;
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}
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if ($type instanceof \ReflectionUnionType) {
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foreach ($type->getTypes() as $nestedType) {
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if (!$this->canCascade($nestedType)) {
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return false;
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}
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}
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return true;
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}
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return $type instanceof \ReflectionNamedType && (\in_array($type->getName(), ['array', 'null'], true) || class_exists($type->getName()));
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}
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}
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