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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\VarExporter;
use Symfony\Component\VarExporter\Internal\Hydrator as InternalHydrator;
/**
* Utility class to hydrate the properties of an object.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
final class Hydrator
{
/**
* Sets the properties of an object, including private and protected ones.
*
* For example:
*
* // Sets the public or protected $object->propertyName property
* Hydrator::hydrate($object, ['propertyName' => $propertyValue]);
*
* // Sets a private property defined on its parent Bar class:
* Hydrator::hydrate($object, ["\0Bar\0privateBarProperty" => $propertyValue]);
*
* // Alternative way to set the private $object->privateBarProperty property
* Hydrator::hydrate($object, [], [
* Bar::class => ['privateBarProperty' => $propertyValue],
* ]);
*
* Instances of ArrayObject, ArrayIterator and SplObjectStorage can be hydrated
* by using the special "\0" property name to define their internal value:
*
* // Hydrates an SplObjectStorage where $info1 is attached to $obj1, etc.
* Hydrator::hydrate($object, ["\0" => [$obj1, $info1, $obj2, $info2...]]);
*
* // Hydrates an ArrayObject populated with $inputArray
* Hydrator::hydrate($object, ["\0" => [$inputArray]]);
*
* @template T of object
*
* @param T $instance The object to hydrate
* @param array<string, mixed> $properties The properties to set on the instance
* @param array<class-string, array<string, mixed>> $scopedProperties The properties to set on the instance,
* keyed by their declaring class
*
* @return T
*/
public static function hydrate(object $instance, array $properties = [], array $scopedProperties = []): object
{
if ($properties) {
$class = $instance::class;
$propertyScopes = InternalHydrator::$propertyScopes[$class] ??= InternalHydrator::getPropertyScopes($class);
foreach ($properties as $name => &$value) {
[$scope, $name, $readonlyScope] = $propertyScopes[$name] ?? [$class, $name, $class];
$scopedProperties[$readonlyScope ?? $scope][$name] = &$value;
}
unset($value);
}
foreach ($scopedProperties as $scope => $properties) {
if ($properties) {
(InternalHydrator::$simpleHydrators[$scope] ??= InternalHydrator::getSimpleHydrator($scope))($properties, $instance);
}
}
return $instance;
}
}
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