[earthboundkid]

An iterator type is being actively worked on now. After that presumably the missing data types in the standard library will be filled out (set, deque, a usable heap, whatever other algorithms). After that, who knows. Maybe native bigints?

I don’t really see the enum thing happened. Is lack of enums a real problem? Theoretically, it would be convenient, but I can’t say that I see bugs caused by its lack.

[LambdaComplex]

Having "type MyType int" and defining a bunch of constants isn't a great replacement for enums. Yeah, it "works," but it still lets the developer forget to check for a possible variant, or you could have an underlying int that doesn't correspond to a valid variant.

The addition of enums would move all these runtime checks to compile time.

[euroderf]

As a workaround, a list in a DB combined with a foreign key constraint. Ugly, yes.

[howinteresting]

Enums with associated values are a very basic data modeling primitive. Writing code without them is like doing arithmetic with only the multiplication sign, not the plus sign.