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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\DependencyInjection; use Psr\Container\ContainerInterface; use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException; /** * Turns public and "container.reversible" services back to their ids. * * @author Nicolas Grekas <p@tchwork.com> */ final class ReverseContainer { private \Closure $getServiceId; public function __construct( private Container $serviceContainer, private ContainerInterface $reversibleLocator, private string $tagName = 'container.reversible', ) { $this->getServiceId = \Closure::bind(fn (object $service): ?string => array_search($service, $this->services, true) ?: array_search($service, $this->privates, true) ?: null, $serviceContainer, Container::class); } /** * Returns the id of the passed object when it exists as a service. * * To be reversible, services need to be either public or be tagged with "container.reversible". */ public function getId(object $service): ?string { if ($this->serviceContainer === $service) { return 'service_container'; } if (null === $id = ($this->getServiceId)($service)) { return null; } if ($this->serviceContainer->has($id) || $this->reversibleLocator->has($id)) { return $id; } return null; } /** * @throws ServiceNotFoundException When the service is not reversible */ public function getService(string $id): object { if ($this->reversibleLocator->has($id)) { return $this->reversibleLocator->get($id); } if (isset($this->serviceContainer->getRemovedIds()[$id])) { throw new ServiceNotFoundException($id, null, null, [], \sprintf('The "%s" service is private and cannot be accessed by reference. You should either make it public, or tag it as "%s".', $id, $this->tagName)); } return $this->serviceContainer->get($id); } }