Non-isbits types?

[hellemo]

Thanks for your great work on Finch, very cool stuff!

I have been playing with the idea of trying to use Finch to generate more efficient code to build optimization models with JuMP, as they are very often built from very sparse data, and you currently have to handle the sparsity manually to get good performance. The documentation of Finch gives the impression that only isbits types are supported, so I have hesitated to look closer into this.

Is there a fundamental limitation that hinders the application on other data types (e.g. variables in JuMP), or can you offer any advice on how to get started to try this out?