Unknown type issue from Beta 4

[vitaly-t]

@RebeccaStevens

After PR #132, it seems, we start getting unknown type resolved...

See 2.0.0.0-beta 4 version published.

UPDATE

Actually, after some time, my IDE started showing spread with correct type, but not flat:

[RebeccaStevens]

Yeah, I suspected there would be problems like this. I'll be working on that next.
I'm working on finishing up the 5.0 release of eslint-plugin-functional.

[vitaly-t]

After playing with it a bit more, I'm seeing my IDE (WebStorm) getting confused about types a lot. It was showing correctly for one operator, then suddenly stopped :) I don't know what to make of it :)

[vitaly-t]

@RebeccaStevens Just re-tested it against v2.0.0-beta.6

Looks like types for flat and flatMap types are resolved correctly now, but not for spread, which produces unknown type.

[RebeccaStevens]

Isn't that expected as 1, 2 and 3 are not iterable?

This should work though:

const data = [[1, 2, 3]];
const i = pipe(data, spread());

[vitaly-t]

Isn't that expected as 1, 2 and 3 are not iterable?

Yes, you are right. What actually confused me is that in v1.6.4 it would complain about incorrect input:

But with v2.0.0-beta.6 it does not complain anymore, which isn't ideal, makes you think that your use of operator is correct, even though it is not. I mean, it confused me, it will surely confuse other developers.

[RebeccaStevens]

When I tried that code, it also complained just like it did in v1.6.4

test/ops/spread/types/sync.test-d.ts

[vitaly-t]

That's odd. I can see that error inside the library tests also, but not inside clients. Tried to clean up the cache - didn't help. Latest TypeScript, latest WebStorm, errors for v1.6.4, not for v2.0.0-beta.6

Any idea? :)

[vitaly-t]

@RebeccaStevens If you are certain that there is no issue there, then feel free to close this issue ;)

[RebeccaStevens]

I'm getting the error, so I think everything is working as exoected.