[dahauns]

IMO, Go is never a good example in static vs dynamic type system discussions (I mean, for this case: parametric polymorphism has been around since the 70s...).

The language developers themselves have repeatedly stated that its type system being very limited is intentional.

See e.g. here: https://github.com/golang/go/issues/29649#issuecomment-45482...

TBH, sometimes I wonder why they bothered with static typing at all...

[simiones]

Sure, I know Go is a low blow to static typing. But in this particular regard, Java or C# don't fare much better either.

This is not a question of just supporting parametric polymorphism, but of abstracting over the number of arguments of a function, which is not supported in almost any type system I know of; and then of matching the number of arguments received with the type of function you specified initially.