Compiler: Flow Enums with Unknown Members instead of "%future added value"

[mrtnzlml]

I've been reading through the new Flow Enums documentation and one thing that caught my attention was enums with unknown members. In short:

enum Status {
  Active,
  Paused,
  Off,
  ...
}

Specifically the last sentence:

One use case for this would be the JS output of GraphQL Enums: Flow Enums with unknown members could be used instead of the added '%future added value' member.

So my question/feature request is: are you considering this? Would you consider it?

Thanks! 😎

[mrtnzlml]

@gkz I've noticed that you just forked Relay. Is it related by any chance? 😊

[gkz]

relay/compiler/crates/relay-config/src/typegen_config.rs

Line 51 in 4109d4a

pub flow_enums: FnvIndexSet<StringKey>,

[mrtnzlml]

@gkz Very cool! Does it work for OSS though? I am trying to use it but it seems like flow_enums is not being used anywhere in the OSS codebase. 🤔

Also: c3568ed

[mrtnzlml]

@alunyov Is this a good candidate for #3749? Is it a bug or a possible improvement? It seems like flow_enums option exists but doesn't do anything in OSS. 🤔