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vendor/symfony/validator/Mapping/PropertyMetadata.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Validator\Mapping;
+
+use Symfony\Component\Validator\Exception\ValidatorException;
+
+/**
+ * Stores all metadata needed for validating a class property.
+ *
+ * The value of the property is obtained by directly accessing the property.
+ * The property will be accessed by reflection, so the access of private and
+ * protected properties is supported.
+ *
+ * This class supports serialization and cloning.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @see PropertyMetadataInterface
+ */
+class PropertyMetadata extends MemberMetadata
+{
+    /**
+     * @param string $class The class this property is defined on
+     * @param string $name  The name of this property
+     *
+     * @throws ValidatorException
+     */
+    public function __construct(string $class, string $name)
+    {
+        if (!property_exists($class, $name)) {
+            throw new ValidatorException(sprintf('Property "%s" does not exist in class "%s".', $name, $class));
+        }
+
+        parent::__construct($class, $name, $name);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getPropertyValue($object)
+    {
+        $reflProperty = $this->getReflectionMember($object);
+
+        if (\PHP_VERSION_ID >= 70400 && $reflProperty->hasType() && !$reflProperty->isInitialized($object)) {
+            // There is no way to check if a property has been unset or if it is uninitialized.
+            // When trying to access an uninitialized property, __get method is triggered.
+
+            // If __get method is not present, no fallback is possible
+            // Otherwise we need to catch an Error in case we are trying to access an uninitialized but set property.
+            if (!method_exists($object, '__get')) {
+                return null;
+            }
+
+            try {
+                return $reflProperty->getValue($object);
+            } catch (\Error $e) {
+                return null;
+            }
+        }
+
+        return $reflProperty->getValue($object);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function newReflectionMember($objectOrClassName)
+    {
+        $originalClass = \is_string($objectOrClassName) ? $objectOrClassName : \get_class($objectOrClassName);
+
+        while (!property_exists($objectOrClassName, $this->getName())) {
+            $objectOrClassName = get_parent_class($objectOrClassName);
+
+            if (false === $objectOrClassName) {
+                throw new ValidatorException(sprintf('Property "%s" does not exist in class "%s".', $this->getName(), $originalClass));
+            }
+        }
+
+        $member = new \ReflectionProperty($objectOrClassName, $this->getName());
+        $member->setAccessible(true);
+
+        return $member;
+    }
+}