Document recursive modules

[ersinakinci]

The following syntax is undocumented:

module rec MyModule: MyModuleType = {
  ...
}

[ryyppy]

Yes this should be documented. Open for contributions in the Module section

[Zachiah]

Can I do this? I assume that rec allows you to use the modules name inside of the module? This doesn't seem extremely useful to me aside from maybe if you have nested modules and you want to refer to something from an outer scope. Is that the usecase? In any case I can add docs if you guys are okay with it

[fhammerschmidt]

One use-case that comes to my mind are recursive React components, for instance for a tree of directories and files.

Example: https://github.com/fhammerschmidt/recursive-folders/blob/main/src/Folder.res#L51

Sorry for answering so late, I guess this one fell under the radar. If you were still willing to submit a PR I would very much appreciate it.

[Zachiah]

Sorry didn't see this till now. (You know how github notifications are lol.) I'll try to get to this in the next few days or so.