Annotations for Flow Type Checker about flummox

[acdlite]

I would love to use Flow, but need to wait for more complete ES6 support. facebook/flow#62

[emmenko]

👍

[chicoxyzzy]

as far as I know Babel supports Flow annotations

[acdlite]

Babel will strip the annotations, but Flow itself doesn't support certain ES6 features, so type-checking won't work.

[chicoxyzzy]

there is a way to blacklist flow transformer babel/babel#665 (comment)

[acdlite]

Huh? Then what's the point?

[chicoxyzzy]

to run Flow on transpiled ES5 code with Flow annotations in it

[acdlite]

Ah, I see. So we would output the ES5 code to a directory called flow or something, and anyone who wants to use it would do require('flummox/flow') instead of require('flummox')?

[chicoxyzzy]

yep

[acdlite]

I like that idea. Do you know of any other libraries that are doing this? I've only played with Flow a bit, and I wonder if it would choke on any of extra code Babel adds.

[chicoxyzzy]

actually no but I saw some people speak about this on babel's gitter channel. I think all should work except runtime will be untyped.
cc @sebmck

[sebmck]

@chicoxyzzy No idea how or why people use it. But Flow should accept and run all Babel ES5 output without a problem and if it doesn't then it'd be a bug in Flow.