Use of unresolved identifier 'FutureUtils'

[paullexen]

var allFutures = [future1, future2]
FutureUtils.sequence(allFutures).onSuccess { result in
    println("complete")
}

When attempting to use FutureUtils class like above, I get the following error:

Use of unresolved identifier 'FutureUtils'

Looks like the FutureUtils functions were turned into free functions here: 17d4f21. But when I change my code to a "free function":

var allFutures = [future1, future2]
sequence(allFutures).onSuccess { result in
    println("complete")
}

I get this error:

Cannot invoke 'onSuccess' with an argument list of type '((_) -> _)'

Any ideas of how to use the FutureUtils functions? Also, the documentation needs to be updated regarding the FutureUtils methods.

[Thomvis]

You're completely right about the documentation regarding FutureUtils. Sorry about that.

In the tests, we do something similar to what you are trying to do: https://github.com/Thomvis/BrightFutures/blob/master/BrightFuturesTests/BrightFuturesTests.swift#L725. Can you try to figure out what the difference is and maybe see what is preventing your case from working?

[paullexen]

Ah, I found the issue. My futures were returning different types. A simple way to recreate:

var future1 = Future.succeeded(1)
var future2 = Future.succeeded("string")        
var allFutures = [future1, future2]
sequence(allFutures).onSuccess { result in
    println("complete")
}

[Thomvis]

Just curious: would it work if you explicitly type allFutures as [Future<Any>]?

[paullexen]

Doesn't seem to. The following code generates a 'String' is not identical to 'Any' error on the third line:

var future1 = Future.succeeded(1)
var future2 = Future.succeeded("string")
var allFutures = [future1, future2] as [Future<Any>]
sequence(allFutures).onSuccess { result in
    println("complete")
}

However, adding the cast to the futures themselves does work:

var future1 = Future.succeeded(1) as Future<Any>
var future2 = Future.succeeded("string") as Future<Any>
var allFutures = [future1, future2] 
sequence(allFutures).onSuccess { result in
    println("complete")
}

[Thomvis]

Thanks for the info. I just updated the README and pushed version 1.0.1. I'm closing this issue.