docs: @Override
  	public boolean eIsSet(int featureID)
  	{
  		switch (featureID)
  		{
  			case SarlPackage.SARL_CASTED_EXPRESSION__FEATURE:
  				return feature != null;
  			case SarlPackage.SARL_CASTED_EXPRESSION__RECEIVER:
  				return receiver != null;
  			case SarlPackage.SARL_CASTED_EXPRESSION__ARGUMENT:
  				return argument != null;
  		}
  		return super.eIsSet(featureID);
  	}