i use shapeless for case class conversion, i have a 2 case class:
import shapeless._
case class Foo(id: Int, name: String)
case class Bar(id: Int, name: String, price: Double)
val fooGen = Generic[Foo]
val barGen = Generic[Bar]
val foo = Foo(1, "foo")
val fooRepr = fooGen.to(foo)
val additional = fooRepr :+ 1.0
val bar = barGen.from(additional)
This works fine, but when i try convert Bar to Foo
fooGen.from(barGen.to(bar))
i get an error:
found : main.barGen.Repr
[error] (which expands to) shapeless.::[Int,shapeless.:: [String,shapeless.::[Double,shapeless.HNil]]]
[error] required: main.fooGen.Repr
[error] (which expands to) shapeless.::[Int,shapeless.::[String,shapeless.HNil]]
[error] println(fooGen.from(barGen.to(bar)))
Is it possible convert one case class where more fields than in another?