[DAFFODIL-1667] remove restriction that dfdl:inputValueCalc and dfdl:outputValueCalc can't be on the same element.

• Type: New Feature
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.0.0
• Component/s: Back End, DFDL Language, Front End
• Assignee: Unassigned
• Reporter: Mike Beckerle
• Created: 30/Nov/16 20:58
• Updated: 05/Feb/21 20:29

Description

This restriction in DFDL seems unnecessary, and a number of times the need for this has come up.

Removing this restriction may require more than just removing a check. The grammar may have assumptions that an element is either dfdl:inputValueCalc or dfdl:outputValueCalc in that grammar terms for these may be exclusive (in daffodil.grammar package).

If this restriction is removable, we will raise the removal to the DFDL WG as a correction to the DFDL spec, as part of an experience document around the advanced DFDL features like computed elements, hidden groups, etc.