[WIT] Defining a HashMap

[yordis]

I am currently working on a protobuf plugin to convert protobuf into WIT.

I wonder if there is a way to define a hashmap/map/dictionary that would allow me to do something similar to map<uint32, bool> map_uint32_bool = 96; in protobuf.

Is this in the roadmap, or should I use map_uint32_bool: list<tuple<string, bool>> for this case?

Ideally, I would have a map type for this; it is commonly expected nowadays I feel.

[lukewagner]

Yes, for right now, list<tuple<string, bool>> is the way to go. There is #125 filed already to add a first-class map<K,V> or dict<V> type (the latter fixing the key type to string). I increasingly think this would be quite valuable for many languages, so I think it's a good idea and just a matter of time/prioritization. The main reason for not doing it yet is that there are some tricky design questions (listed in #125), although I expect we can find some workable compromises.

[lukewagner]

(Also: exciting to hear about your protobuf/WIT converter!)

[yordis]

Closing in favor of #125