CODEWITHSUNDEEP
iosxcodeswift
PizzaRings
PizzaRings

Reputation: 171

Get Type from a class

Is it possibile to retrive the data Type from a class in Swift language ?

This is an example :

class Test : NSObject
{
    let field1 : String
    let field2 : Int

    init(value1 : String, value2 : Int)
    {
        field1 = value1
        field2 = value2
    }
}

let test1 = Test(value1: "Hello", value2: 1)

//this code return the same string with class name (__lldb_expr_129.Test)
let classString = NSStringFromClass(test1.classForCoder) 
let className2 = reflect(test1).summary

//this code return the same ExistentialMetatype value and not the Tes or NSObject type
let classType = reflect(test1).valueType
let classType2 = test1.self.classForCoder

//this return Metatype and not the Test or NSObject type
let classType3 = test1.self.dynamicType

Is there a method to retrive the Test type and not the ExistentialMetatype or Metatypevalue ?

Upvotes: 3

Views: 763

Answers (1)

newacct
newacct

Reputation: 122429

  1. .self on an object is pointless. test1.self is the same as test1
  2. test1.classForCoder is the same as test1.dynamicType which is just Test.self. This is a type (a value of metatype type). Swift types currently do not have nice printable representations; but just because it doesn't print nice does not mean it's not what you want. Since in this case the type is a class, you can use NSStringFromClass or cast it to an object (giving you the Objective-C class object) and print that.

Upvotes: 1

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