code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case XtextPackage.RULE_CALL__RULE:
  				return rule != null;
  			case XtextPackage.RULE_CALL__ARGUMENTS:
  				return arguments != null && !arguments.isEmpty();
  			case XtextPackage.RULE_CALL__EXPLICITLY_CALLED:
  				return explicitlyCalled != EXPLICITLY_CALLED_EDEFAULT;
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated