All classes that implement ContextInterface in Drupal 8
- class \Drupal\Core\Plugin\Context\Context implements ContextInterface uses DependencySerializationTrait, TypedDataTrait
- class \Drupal\Core\Plugin\Context\EntityContext
- class \Drupal\ctools\Context\AutomaticContext
- class \Drupal\ctools\Context\EntityLazyLoadContext
- class \Drupal\flexiform\FormEntity\FormEntityContext implements FormEntityContextInterface uses DependencySerializationTrait
- class \Drupal\page_manager\Context\EntityLazyLoadContext
- class \Drupal\page_manager\Context\EntityLazyLoadContext