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<?php
declare(strict_types=1);
namespace Stratadox\Instantiator;
use ReflectionClass;
use ReflectionException;
use function sprintf;
use function strlen;
use Throwable;
/**
* Simple Instantiator.
*
* @author Stratadox
*/
final class ObjectInstantiator extends ReflectionClass implements Instantiator
{
/** @throws InstantiationFailure */
private function __construct(string $class)
try {
parent::__construct($class);
} catch (ReflectionException $exception) {
throw NoSuchClass::encountered($exception);
}
if ($this->isAbstract()) {
throw NoConcreteClass::cannotInstantiate($class);
if ($this->isInterface()) {
throw NotAClass::cannotInstantiate($class);
* Produces a new instantiator.
* @param string $class The class to create the instantiator for.
* @return Instantiator The instantiator for the class.
* @throws InstantiationFailure
public static function forThe(string $class): Instantiator
return new ObjectInstantiator($class);
/** @inheritdoc */
public function instance(): object
return $this->newInstanceWithoutConstructor();
} catch (Throwable $exception) {
return $this->newInstanceFromDeserialization();
public function class(): string
return $this->getName();
private function newInstanceFromDeserialization(): object
$class = $this->getName();
return unserialize(sprintf(
'O:%d:"%s":0:{}',
strlen($class),
$class
), ['allowed_classes' => [$class]]);
Stratadox /
Instantiator
