class ClassResolver in Service Container 7

Implements the class resolver interface supporting class names and services.

Hierarchy

• class \Drupal\Core\DependencyInjection\ClassResolver implements ClassResolverInterface, ContainerAwareInterface uses DependencySerializationTrait, ContainerAwareTrait

File

lib/Drupal/Core/DependencyInjection/ClassResolver.php, line 16

Contains \Drupal\Core\DependencyInjection\ClassResolver.

Namespace

Drupal\Core\DependencyInjection

class ClassResolver implements ClassResolverInterface, ContainerAwareInterface {
  use DependencySerializationTrait;
  use ContainerAwareTrait;

  /**
   * {@inheritdoc}
   */
  public function getInstanceFromDefinition($definition) {
    if ($this->container
      ->has($definition)) {
      $instance = $this->container
        ->get($definition);
    }
    else {
      if (!class_exists($definition)) {
        throw new \InvalidArgumentException(sprintf('Class "%s" does not exist.', $definition));
      }
      if (is_subclass_of($definition, 'Drupal\\Core\\DependencyInjection\\ContainerInjectionInterface')) {
        $instance = $definition::create($this->container);
      }
      else {
        $instance = new $definition();
      }
    }
    if ($instance instanceof ContainerAwareInterface) {
      $instance
        ->setContainer($this->container);
    }
    return $instance;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ClassResolver::getInstanceFromDefinition	public	function	Returns a class instance with a given class definition. Overrides ClassResolverInterface::getInstanceFromDefinition
ContainerAwareTrait::$container	protected	property
ContainerAwareTrait::setContainer	public	function	Sets the Container associated with this Controller.
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function
DependencySerializationTrait::__wakeup	public	function