Viewing file:  Instantiator.php (2.34 KB) -rw-r--r--
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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\Exception\ExceptionInterface;
use Symfony\Component\VarExporter\Exception\NotInstantiableTypeException;
use Symfony\Component\VarExporter\Internal\Registry;
/**
* A utility class to create objects without calling their constructor.
*
* @author Nicolas Grekas <p@tchwork.com>
*/
final class Instantiator
{
/**
* Creates an object and sets its properties without calling its constructor nor any other methods.
*
* @see Hydrator::hydrate() for examples
*
* @template T of object
*
* @param class-string<T> $class The class of the instance to create
* @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
*
* @throws ExceptionInterface When the instance cannot be created
*/
public static function instantiate(string $class, array $properties = [], array $scopedProperties = []): object
{
$reflector = Registry::$reflectors[$class] ??= Registry::getClassReflector($class);
if (Registry::$cloneable[$class]) {
$instance = clone Registry::$prototypes[$class];
} elseif (Registry::$instantiableWithoutConstructor[$class]) {
$instance = $reflector->newInstanceWithoutConstructor();
} elseif (null === Registry::$prototypes[$class]) {
throw new NotInstantiableTypeException($class);
} elseif ($reflector->implementsInterface('Serializable') && !method_exists($class, '__unserialize')) {
$instance = unserialize('C:'.\strlen($class).':"'.$class.'":0:{}');
} else {
$instance = unserialize('O:'.\strlen($class).':"'.$class.'":0:{}');
}
return $properties || $scopedProperties ? Hydrator::hydrate($instance, $properties, $scopedProperties) : $instance;
}
}
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