85 lines
2.8 KiB
PHP
85 lines
2.8 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\Exception\ValidatorException;
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/**
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* Stores all metadata needed for validating a class property.
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*
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* The value of the property is obtained by directly accessing the property.
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* The property will be accessed by reflection, so the access of private and
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* protected properties is supported.
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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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*
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* @see PropertyMetadataInterface
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*/
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class PropertyMetadata extends MemberMetadata
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{
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/**
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* @param string $class The class this property is defined on
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* @param string $name The name of this property
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*
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* @throws ValidatorException
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*/
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public function __construct(string $class, string $name)
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{
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if (!property_exists($class, $name)) {
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throw new ValidatorException(sprintf('Property "%s" does not exist in class "%s".', $name, $class));
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}
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parent::__construct($class, $name, $name);
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}
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public function getPropertyValue(mixed $object): mixed
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{
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$reflProperty = $this->getReflectionMember($object);
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if ($reflProperty->hasType() && !$reflProperty->isInitialized($object)) {
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// There is no way to check if a property has been unset or if it is uninitialized.
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// When trying to access an uninitialized property, __get method is triggered.
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// If __get method is not present, no fallback is possible
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// Otherwise we need to catch an Error in case we are trying to access an uninitialized but set property.
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if (!method_exists($object, '__get')) {
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return null;
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}
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try {
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return $reflProperty->getValue($object);
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} catch (\Error) {
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return null;
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}
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}
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return $reflProperty->getValue($object);
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}
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protected function newReflectionMember(object|string $objectOrClassName): \ReflectionMethod|\ReflectionProperty
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{
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$originalClass = \is_string($objectOrClassName) ? $objectOrClassName : $objectOrClassName::class;
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while (!property_exists($objectOrClassName, $this->getName())) {
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$objectOrClassName = get_parent_class($objectOrClassName);
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if (false === $objectOrClassName) {
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throw new ValidatorException(sprintf('Property "%s" does not exist in class "%s".', $this->getName(), $originalClass));
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}
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}
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return new \ReflectionProperty($objectOrClassName, $this->getName());
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}
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}
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