Shapeless - turn a case class into another with fields in different order

Question

I\'m thinking of doing something similar to Safely copying fields between case classes of different types but with reordered fields, i.e.

case class A(foo: I         


        

Answer 1

As noticed @MilesSabin (godlike shapeless creator), there is an align operation, it is used like:

import ops.hlist.Align

val aGen = LabelledGeneric[A]
val bGen = LabelledGeneric[B]
val align = Align[aGen.Repr, bGen.Repr]
bGen.from(align(aGen.to(A(12, 13)))) //> res0: B = B(13,12)

P.S. Noticed that there is an example on GitHub.