enums not exported?

[lwansbrough]

I'm getting the error source.js:2:43 SyntaxError: ambiguous indirect export: MyEnum when I try to import my enum like: import { MyEnum } from 'my_package:my_world/my_module' -- I see in debug mode that none of the enums appear to be exported.

[guybedford]

In JavaScript we don't export types currently - instead they are replicated by structure. So an enum is just a union of kebab case strings.

Introducing runtime type imports is tracking in bytecodealliance/jco#235 and may be introduced in the future.

[lwansbrough]

Yeah I think it's important. I've got a ton of enums specified in wit files. Other guest code (ie. Rust) has access to them, so I think it makes sense that JS guest code would too. Otherwise the guest would have to replicate them so they can be passed as data. I'll keep an eye on the other issue, thanks.

[guybedford]

Right now it's easy enough to use them as just strings, but yes we are moving in the direction of runtime types.