IfLetTuples.swift

gistfile1.swift

func noNils(optionals:[Any?]) -> Bool {
    for item in optionals {
        if item == nil {
            return false
        }
    }
    return true
}

func allSome<A,B>(a:A?, b:B?) -> (A,B)? {
    switch (a,b) {
    case (.Some(let aa), .Some(let bb)):
        return (aa,bb)
    default:
        return nil
    }
}

func allSome<A,B,C>(a:A?, b:B?, c:C?) -> (A,B,C)? {
    switch (a,b,c) {
    case (.Some(let aa), .Some(let bb), .Some(let cc)):
        return (aa,bb,cc)
    default:
        return nil
    }
}