Scala: curried constructors

Question

I have the following Scala class:

class Person(var name : String, var age : Int, var email : String)

I would like to use the Person constructor as a curried function:

def mkPerson = (n : String) => (a : Int) => (e : String) => new Person(n,a,e)

This works, but is there another way to accomplish this? This approach seems a bit tedious and error-prone. I could imagine something like Function.curried, but then for constructors.

Answer 1

This will work:

def mkPerson = (new Person(_, _, _)).curried

Answer 2

A bit late to this party, but if you make Person a case class:

scala> case class Person(name: String, age: Int, email: String)
defined class Person

Scala generates a companion object containing Person.apply(String, Int, String) and some other stuff for you. Then you can do:

scala> Person.curried
res5: String => (Int => (String => Person)) = <function1>

Which is shorthand for:

(Person.apply _).curried

It works with var parameters too.

Answer 3

may be so:

val mkPerson = Function.curried((n: String,a:Int,e:String) => new Person (n,a,e))