SICP cons/car/cdr in Swift

cons-car-cdr.swift

enum ConsPosition {
    case Left, Right
}

func cons<T>(a: T, b: T) -> (ConsPosition -> T) {
    func innerCons(i: ConsPosition) -> T {
        if i == .Left {
            return a;
        } else {
            return b;
        }
    }
    
    return innerCons;
}

func car<T>(innerCons: ConsPosition -> T) -> T {
    return innerCons(.Left);
}

func cdr<T>(innerCons: ConsPosition -> T) -> T {
    return innerCons(.Right);
}

// let list = cons("a", 2)

// println(car(list))
// println(cdr(list))

cons(1, cons(2, nil));

it doesnt work ?

@eczn you are very likely correct -- I cannot remember if I thought I had this working or if I did not have this working and created a gist to get some help with it!