code: @Override
  	public void eUnset(int featureID)
  	{
  		switch (featureID)
  		{
  			case XbasePackage.XBASIC_FOR_LOOP_EXPRESSION__EXPRESSION:
  				setExpression((XExpression)null);
  				return;
  			case XbasePackage.XBASIC_FOR_LOOP_EXPRESSION__EACH_EXPRESSION:
  				setEachExpression((XExpression)null);
  				return;
  			case XbasePackage.XBASIC_FOR_LOOP_EXPRESSION__INIT_EXPRESSIONS:
  				getInitExpressions().clear();
  				return;
  			case XbasePackage.XBASIC_FOR_LOOP_EXPRESSION__UPDATE_EXPRESSIONS:
  				getUpdateExpressions().clear();
  				return;
  		}
  		super.eUnset(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated