Get service ID from Symfony container by object service

ContainerServiceId.php

<?php

namespace Vrt\UtilsBundle\Service;

use RuntimeException;
use Symfony\Component\DependencyInjection\Container;

// AppKernel::initializeContainer()
// if ('dev' === $this->environment) {
//     ContainerServiceId::setContainer($this->container);
// }


/**
 * For debugging container service IDs in dev environment.
 * Can be used while debugging.
 */
final class ContainerServiceId
{
    /** @var Container|null */
    private static $container;

    public static function setContainer(Container $container): void
    {
        self::$container = $container;
    }

    /**
     * @param object $object
     *
     * @return string|null
     */
    public static function get($object): ?string
    {
        if (null === self::$container) {
            throw new RuntimeException('ContainerServiceId::get() only works in dev environment');
        }

        $helper = new class extends Container
        {
            public function findServiceId(Container $container, $object): ?string
            {
                foreach ($container->services as $serviceId => $service) {
                    if ($object === $service) {
                        return $serviceId;
                    }
                }
                return null;
            }
        };

        return $helper->findServiceId(self::$container, $object);
    }
}