如何使用无形中的变量访问案例类字段

Question

I want to do something like this

case class Dog(name :String, breed : String)

val dg = Dog("ABC", "Husky")

At run time I want to get the case class field value through a variable Below, "name" would be dynamically calculated driven from another input

val str = "'" + "name"
val witn = Witness(Symbol(str))

It fails with Expression

scala.Symbol.apply(str) does not evaluate to a constant or a stable value

I am not sure how this should be resolved. If it can be resolved

Appreciate all help!

Thanks!

Answer 1

Using `String` instead of `Symbol` in `LabelledGeneric` etc

Guess it has been asked and answered above. there is no support for String yet. Waiting for the release that has it!