How to solve “String interpolation produces a debug description for an optional value; did you mean to make this explicit?” in Xcode 8.3 beta?

Question

Since beta 8.3, zillions warnings \"String interpolation produces a debug description for an optional value; did you mean to make this explicit?\" appeared in my code.

Answer 1

Swift 5

My solution is making an extension which unwrap Optional object to Any.

When you log the object or print it out, you can see the actual object or ⭕️ (combination from text and visual character). It's useful to look at, especially in the console log.

extension Optional {
    var logable: Any {
        switch self {
        case .none:
            return "|⭕️"
        case let .some(value):
            return value
        }
    }
}

// sample
var x: Int?
print("Logging optional without warning: \(x.logable)")
// → Logging optional without warning: |⭕️