Chris@0: <?php
Chris@0: // @codingStandardsIgnoreFile
Chris@0: 
Chris@0: namespace Drupal\Core\DependencyInjection;
Chris@0: 
Chris@0: use Symfony\Component\DependencyInjection\ContainerBuilder as SymfonyContainerBuilder;
Chris@0: use Symfony\Component\DependencyInjection\Container as SymfonyContainer;
Chris@0: use Symfony\Component\DependencyInjection\Definition;
Chris@0: use Symfony\Component\DependencyInjection\LazyProxy\Instantiator\RealServiceInstantiator;
Chris@0: use Symfony\Component\DependencyInjection\ParameterBag\ParameterBagInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Drupal's dependency injection container builder.
Chris@0:  *
Chris@0:  * @todo Submit upstream patches to Symfony to not require these overrides.
Chris@0:  *
Chris@0:  * @ingroup container
Chris@0:  */
Chris@0: class ContainerBuilder extends SymfonyContainerBuilder {
Chris@0: 
Chris@0:   /**
Chris@0:    * @var \Doctrine\Instantiator\InstantiatorInterface|null
Chris@0:    */
Chris@0:   private $proxyInstantiator;
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function __construct(ParameterBagInterface $parameterBag = NULL) {
Chris@14:     parent::__construct($parameterBag);
Chris@0:     $this->setResourceTracking(FALSE);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Retrieves the currently set proxy instantiator or instantiates one.
Chris@0:    *
Chris@0:    * @return InstantiatorInterface
Chris@0:    */
Chris@0:   private function getProxyInstantiator()
Chris@0:   {
Chris@0:     if (!$this->proxyInstantiator) {
Chris@0:       $this->proxyInstantiator = new RealServiceInstantiator();
Chris@0:     }
Chris@0: 
Chris@0:     return $this->proxyInstantiator;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@14:    * A 1to1 copy of parent::shareService.
Chris@14:    *
Chris@14:    * @todo https://www.drupal.org/project/drupal/issues/2937010 Since Symfony
Chris@14:    *   3.4 this is not a 1to1 copy.
Chris@0:    */
Chris@14:   protected function shareService(Definition $definition, $service, $id, array &$inlineServices)
Chris@0:   {
Chris@0:     if ($definition->isShared()) {
Chris@0:       $this->services[$lowerId = strtolower($id)] = $service;
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Overrides Symfony\Component\DependencyInjection\ContainerBuilder::set().
Chris@0:    *
Chris@0:    * Drupal's container builder can be used at runtime after compilation, so we
Chris@0:    * override Symfony's ContainerBuilder's restriction on setting services in a
Chris@0:    * frozen builder.
Chris@0:    *
Chris@0:    * @todo Restrict this to synthetic services only. Ideally, the upstream
Chris@0:    *   ContainerBuilder class should be fixed to allow setting synthetic
Chris@0:    *   services in a frozen builder.
Chris@0:    */
Chris@0:   public function set($id, $service) {
Chris@0:     if (strtolower($id) !== $id) {
Chris@0:       throw new \InvalidArgumentException("Service ID names must be lowercase: $id");
Chris@0:     }
Chris@0:     SymfonyContainer::set($id, $service);
Chris@0: 
Chris@0:     // Ensure that the _serviceId property is set on synthetic services as well.
Chris@0:     if (isset($this->services[$id]) && is_object($this->services[$id]) && !isset($this->services[$id]->_serviceId)) {
Chris@0:       $this->services[$id]->_serviceId = $id;
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function register($id, $class = null) {
Chris@0:     if (strtolower($id) !== $id) {
Chris@0:       throw new \InvalidArgumentException("Service ID names must be lowercase: $id");
Chris@0:     }
Chris@0:     return parent::register($id, $class);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@14:   public function setAlias($alias, $id) {
Chris@14:     $alias = parent::setAlias($alias, $id);
Chris@14:     // As of Symfony 3.4 all aliases are private by default.
Chris@14:     $alias->setPublic(TRUE);
Chris@14:     return $alias;
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * {@inheritdoc}
Chris@14:    */
Chris@14:   public function setDefinition($id, Definition $definition) {
Chris@14:     $definition = parent::setDefinition($id, $definition);
Chris@14:     // As of Symfony 3.4 all definitions are private by default.
Chris@14:     // \Symfony\Component\DependencyInjection\Compiler\ResolvePrivatesPassOnly
Chris@14:     // removes services marked as private from the container even if they are
Chris@14:     // also marked as public. Drupal requires services that are public to
Chris@14:     // remain in the container and not be removed.
Chris@14:     if ($definition->isPublic()) {
Chris@14:       $definition->setPrivate(FALSE);
Chris@14:     }
Chris@14:     return $definition;
Chris@14:   }
Chris@14: 
Chris@14:   /**
Chris@14:    * {@inheritdoc}
Chris@14:    */
Chris@0:   public function setParameter($name, $value) {
Chris@0:     if (strtolower($name) !== $name) {
Chris@0:       throw new \InvalidArgumentException("Parameter names must be lowercase: $name");
Chris@0:     }
Chris@0:     parent::setParameter($name, $value);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * A 1to1 copy of parent::callMethod.
Chris@14:    *
Chris@14:    * @todo https://www.drupal.org/project/drupal/issues/2937010 Since Symfony
Chris@14:    *   3.4 this is not a 1to1 copy.
Chris@0:    */
Chris@14:   protected function callMethod($service, $call, array &$inlineServices = array()) {
Chris@0:     $services = self::getServiceConditionals($call[1]);
Chris@0: 
Chris@0:     foreach ($services as $s) {
Chris@0:       if (!$this->has($s)) {
Chris@0:         return;
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     call_user_func_array(array($service, $call[0]), $this->resolveServices($this->getParameterBag()->resolveValue($call[1])));
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function __sleep() {
Chris@0:     assert(FALSE, 'The container was serialized.');
Chris@0:     return array_keys(get_object_vars($this));
Chris@0:   }
Chris@0: 
Chris@0: }