Hashmap literals are the right approach to named arguments and functions-as-control-structures IMHO. Ruby does this too IIRC. It's great because it re-uses exis

Hashmap literals are the right approach to named arguments and functions-as-control-structures IMHO. Ruby does this too IIRC. It's great because it re-uses existing syntax and semantics instead of adding edge cases. You can even add syntax sugar like you just demonstrated.