Get associated value from enumeration without switch/case

Question

I\'ve got an enumeration with a few different cases which are different types, e.g.

enum X {
    case AsInt(Int)
    case AsDouble(Double)
}

<

Answer 1

As of Swift 2 (Xcode 7) this is possible with if/case and pattern matching:

let x : X = ...
if case let .AsInt(num) = x {
    print(num)
}

The scope of num is restricted to the if-statement.