I've got a handful of classes that have a function they've mixed in. The idea is to pass the type into a function that should be instantiated, and the function called, before returning the new object. I've looked around a bit, but I'm still unsure of the best way to do this.

Kind of like:

Obj makeNcall(Type t) {
  o := t.make()
  o.leadTheCatsToWater()  // leading cats is a mixed in trait
  return o
}

Yeah, that should work... just make a dynamic call with the -> operator:

o->leadTheCatsToWater()

or you could use reflection:

Obj makeNcall(Type t) {
  o := t.make()
  m := t.method("leadTheCatsToWater")
  m.callOn(o)
  return o
}

Got it - thanks!