bigger_case_class.scala

def f1(s1: String, s2: String, s3: String) = println(s"f1: $s1, $s2, $s3")

def f2(s1: String, s2: String) = println(s"f2: $s1, $s2")

case class Bigger(
	s1: String = "AAAA",
	s2: String = "AAAA",
	s3: String = "AAAA"
)

case class Smaller(
	s1: String = "AA",
	s2: String = "AA"
)


val bigger = Bigger()
val smaller = Smaller()

// works
(f1 _).tupled(Bigger.unapply(bigger).get)
// works
(f2 _).tupled(Smaller.unapply(smaller).get)

// what I want to do is Call f2 with an instance of Bigger,
// dropping extra properties at the end.
(f2 _).tupled(Bigger.unapply(bigger).get)