polytypic / netoptics Goto Github PK

Hi! I've found the need for for a lens library usable from both c# and f#.

Fshapx extras has one implementation I've duplicated for c# usable lenses in with but with a different focus.

Could we cooperate on some approach? Would it make sense to write an RFC for f#+ to include c# compatible lenses?

Hi! A quick question please, something I've struggled to make work for some time. I have

type Wrapped = {nums: int list}
let numsL p = Optic.lens (fun w -> w.nums) (fun v w -> {w with nums = v}) p
let wrapped = {nums = [1;7]}

Now this composition doesn't compile

Optic.collect (numsL << Optic.elemsT) wrapped

with The type 'int list' does not match the type 'Optic.IROL<'a>'

Do I need explicit casting here, or an isomorphism? Thanks!