Passing Scala Class as parameter?

Question

I\'m looking to pass a Class as a parameter to a Scala function like so:

def sampleFunc (c : Class) : List[Any]  

(Side question: should the ty

Answer 1

Well, to your original question: Yes, you can pass Scala Class as an argument. As Class is a type constructor, it needs a concrete type to make a type to be used in argument. You can use the wildcard existential type Class[_] as you have done.

def sample(c: Class[_]) = println("Get a class")
sample(classOf[Int])

However, if you want to check whether an object is of certain type, I recommend you to use =:=, in combination with default parameter

def checkType[T](obj: T)(implict ev: T =:= Int = null) =
  if (ev == null) "get other"
  else "get int"
checkType(123) // get int
checkType("123") // get other