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