Convert Path String to Object Path in Swift

Question

struct Student{
  var rollNum : Int
  var name : String
  var contact : Contact
}
struct Contact{
  var phoneNum : String
  var mailId : String
}

let contact = Contact(phoneNum : "1234567890", mailId : "[email protected]") 
let student = Student(rollNum : 1, name : "John", contact : contact)

Here, the path for mail Id is given as a String "Student/contact/mailId". How to convert this to Object Path as Student.contact.mailId?

Assume the label wants to display the mail ID, I would give the path string as "Student/contact/mailId" and the label should display the mail id as [email protected]

Answer 1

struct Student {
    var rollNum: String
    var name: String
    var contact: Contact
}
struct Contact {
    var phoneNum: String
    var mailId: MailId
}
struct MailId {
    var official : String
    var personal : String
}
let pathString = "Student/contact/mailId/personal"
let pathComponents = pathString.components(separatedBy: "/")
var index : Int = 1

let contact = Contact(phoneNum: "9988998899", mailId: MailId(official: "[email protected]", personal: "[email protected]"))
let student = Student(rollNum: "123", name: "John", contact: contact)



Reflection(from: student , pathComponents: pathComponents)
func Reflection(from object : Any, pathComponents : [String]) {
    let properties = Mirror(reflecting: object)
    for property in properties.children{
        if index < pathComponents.count{
            if property.label == pathComponents[index] {
                index += 1
                print(property.value , "got here with label :" , property.label)
                Reflection(from: property.value, pathComponents: pathComponents)
                
            }
        }
    }
}

Here, we can get the value as [email protected]