function DrupalKernel::getServicesToPersist

Returns service instances to persist from an old container to a new one.

File

core/lib/Drupal/Core/DrupalKernel.php, line 1112

Class

DrupalKernel

The DrupalKernel class is the core of Drupal itself.

Namespace

Code

protected function getServicesToPersist(ContainerInterface $container) {
    $persist = [];
    foreach ($container->getParameter('persist_ids') as $id) {
        // It's pointless to persist services not yet initialized.
        if ($container->initialized($id)) {
            $persist[$id] = $container->get($id);
        }
    }
    return $persist;
}