List to TupleN

ListToTuple.scala

object ListToTupleImplicit {
  class ListToTuple[A](xs:List[A]){
	  def toTuple2 = (xs(0),xs(1))
	  def toTuple3 = (xs(0),xs(1),xs(2))
	  def toTuple4 = (xs(0),xs(1),xs(2),xs(3)) 
  }
  implicit def listToTuple[A](xs:List[A]):ListToTuple[A] = new ListToTuple(xs)
}


scala> import ListToTupleImplicit._
import ListToTupleImplicit._

scala> List(1,2,3,4).toTuple4
res14: (Int, Int, Int, Int) = (1,2,3,4)

scala> List(1,2,3,4).toTuple3
res15: (Int, Int, Int) = (1,2,3)

scala> def baz(a:Int,b:Int,c:Int) = a + b + c
baz: (a: Int, b: Int, c: Int)Int

scala> (baz _).tupled(List(1,2,3).toTuple3)
res16: Int = 6