class StreamWrapperClassesPass

Collects the classes of services tagged 'stream_wrapper'.

Stream wrapper classes have to be registered with PHP by class name, as PHP instantiates stream wrappers itself without dependency injection. Collecting the class names at compile time allows the stream wrapper manager to register wrappers without instantiating the individual services.

Hierarchy

• class \Drupal\Core\DependencyInjection\Compiler\StreamWrapperClassesPass implements \Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface

Expanded class hierarchy of StreamWrapperClassesPass

File

core/lib/Drupal/Core/DependencyInjection/Compiler/StreamWrapperClassesPass.php, line 18

Namespace

class StreamWrapperClassesPass implements CompilerPassInterface {
  
  /**
   * {@inheritdoc}
   */
  public function process(ContainerBuilder $container) : void {
    if (!$container->hasDefinition('stream_wrapper_manager')) {
      return;
    }
    $wrapper_classes = [];
    foreach ($container->findTaggedServiceIds('stream_wrapper') as $id => $tags) {
      $class = $container->getDefinition($id)
        ->getClass();
      foreach ($tags as $attributes) {
        $wrapper_classes[$attributes['scheme']] = $class;
      }
    }
    $container->getDefinition('stream_wrapper_manager')
      ->setArgument('$wrapperClasses', $wrapper_classes);
  }

}