Emulating variadic templates in Scala

Question

Suppose you want to have something like variadic templates (the ability to define n type parameters for a generic class) in Scala.

For example you do not want to define

Answer 1

At the moment there's no syntactical construct in Scala which allows what you're suggesting. That's also the reason why there are 22 Tuple classes (Tuple2, Tuple3, ..., Tuple22) and also different Function classes (Function0, ...).