Scala method clone in class Object cannot be accessed in T Access to protected method clone not permitted because

Question

I\'ve got troubles with cloning in Scala. Is this possible to clone an object of an arbitrary type T? Something like this:

import collection.immutable.Stack

obj         


        

Answer 1

I was advised on this question. In such a situation the best approach is to use structural typing:

trait Grand[T <: {def cloneObject: T}]

so that the user code might be the following:

case class Person(name: String) {
  def cloneObject = copy()
}

object Roll extends App with Grand[Person] {
...
}