Result Types
Enums are also frequently used to map the result of JSON parsing into the Swift type system. Here's a short example of this:
enum JSON {
case JSONString(Swift.String)
case JSONNumber(Double)
case JSONObject([String : JSONValue])
case JSONArray([JSONValue])
case JSONBool(Bool)
case JSONNull
}
Similarly, if you're parsing something else, you may use the very same
structure to convert your parsing results into Swift types. This also
makes perfect sense to only do it during the parsing / processing step
and then taking the JSON enum
representation and converting it into
one of your application's internal class
or struct
types.