How Can A Document Data Model Use Compound Types? ( And What Is The SpreadSheet Type? )

[12GreenTrees]

My main question was explored quite a bit in this thread.

For context, I said I was going to use structs, but that would've been bad performance wise.

Can A Mix Of Structs And Classes Be Used For A Document App's Data Model?

I would argue the opposite here. Because structs don’t have a fixed identity your entire document will update whenever you change anything. The initial solution I suggest is having a class for each cell that wraps its current value and formula. Then you can choose when you want to update the values of the cells, and only the parts of your app that try to read a particular cell’s value will need to update when that cell updates. I do think it’s reasonable to have a struct at the top level that ho…