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