Casting to Task without specifying generic type about bolts-swift HOT 3 OPEN

Hello,
I'm completely new to Bolts and also a beginner in swift so maybe this might be completely wrong but wouldn't it be possible to create a struct or class called e. g. "MyTaskResult" to wrap your actual result?

I just gave it a quick try and it seems to work:

func printHelloWorld() {
    doSomething().continueWith() { task in
        print(task.result?.result)
    }
}

func doSomething() -> Task<MyResult> {
    let tcs = TaskCompletionSource<MyResult>()
    ...
    tcs.set(result: MyResult(result: "Hello World" as AnyObject))
    ...
    return tcs.task
}

struct MyResult {
    var result: AnyObject
}

Surely there is a better way of doing this but this, I think, could at least work somehow.

from bolts-swift.

Hi. Any updates on this? I'm running into the same problem.

I'm porting my code from Objc to Swift and have a function like this:

(void) handleException:(BFTask*)task{}

converted to Swift:

func handleException(_ task: Task)()

In ObjC the input can be any BFTask but in Swift I get the "Task cannot be caster to Task" error mentioned above by @adrianhr91 .

@xxtesaxx solution is a smart approach but requires the use of AnyObject in the input rather than a specific type.

from bolts-swift.

I ended up going a different route, by using an extension I can create a function in the Task Class that can be called from any generic Task. So instead of a function that takes a generic Task as input, I have a function that is a prototype of a generic Task.

extension Task{
func handleException()()
}

This way handleException() can be called on any Task

Hope that helps someone else.

from bolts-swift.