Swift 2 Reflection Error

Question

I have look around a swift code to try and make a reflection function that serialized an object into JSON. The trouble is when i call the initializer to get the reflection it throws a crazy error

struct Address {
    var street: String
}

struct Person {
    var name: String = "Dre"
    var age: Int = 33
    var dutch: Bool = false
    var address: Address? = Address(street: "Clark Drive")
}

// Throws an error on the next line
let mirror = Mirror(reflecting: Person) 

When i try to set the value of mirror to the result of Mirror initialization i get the following errors:

1. Missing argument label 'reflecting:' in call
2. Cannot create a single-element tuple with an element label

Any idea what could be going wrong here?

Answer 1

You need to pass an instance of Person instead of the class Person. E.g:

struct Address {
    var street: String
}

struct Person {
    var name: String = "Dre"
    var age: Int = 33
    var dutch: Bool = false
    var address: Address? = Address(street: "Clark Drive")
}

let person = Person()
let mirror = Mirror(reflecting: person)

print(mirror.displayStyle)
for case let (label?, value) in mirror.children {
    print(label, value)
}

Prints:

Optional(Struct)
name Dre
age 33
dutch false
address Optional(Address(street: "Clark Drive"))
Mirror for Bookmark