Chris@18: <?php
Chris@18: 
Chris@18: namespace Drupal\Core\DependencyInjection;
Chris@18: 
Chris@18: /**
Chris@18:  * Provides a standard way to announce deprecated properties.
Chris@18:  */
Chris@18: trait DeprecatedServicePropertyTrait {
Chris@18: 
Chris@18:   /**
Chris@18:    * Alows to access deprecated/removed properties.
Chris@18:    *
Chris@18:    * This method must be public.
Chris@18:    */
Chris@18:   public function __get($name) {
Chris@18:     if (!isset($this->deprecatedProperties)) {
Chris@18:       throw new \LogicException('The deprecatedProperties property must be defined to use this trait.');
Chris@18:     }
Chris@18: 
Chris@18:     if (isset($this->deprecatedProperties[$name])) {
Chris@18:       $service_name = $this->deprecatedProperties[$name];
Chris@18:       $class_name = static::class;
Chris@18:       @trigger_error("The property $name ($service_name service) is deprecated in $class_name and will be removed before Drupal 9.0.0.", E_USER_DEPRECATED);
Chris@18:       return \Drupal::service($service_name);
Chris@18:     }
Chris@18:   }
Chris@18: 
Chris@18: }