how to show the type of a HList in scala shapeless
scala, shapeless
Solution
Use `shapeless.Typeable`:
scala> import shapeless._
import shapeless._
scala> case class A(i: Int, s: String)
defined class A
scala> val gen = Generic[A]
gen: shapeless.Generic[A]{type Repr =
shapeless.::[Int,shapeless.::[String,shapeless.HNil]]} =
anon$macro$14$1@56639061
scala> println(Typeable[gen.Repr].describe)
Int :: String :: HNil
Problem
How do I get the type of a HList as a String so I can print it. eg `"Int :: Long :: String :: HNil"` ``` val gen = Generic[?] val typeString: String = ??? println("The type is " + typeString) ``` I know the String of it isnt very useful and usually you want the type from `gen.Repr`