Cannot use instance member 'getA' within property initializer; property initializers run before 'self' is available

Question

Y this giving this error - Cannot use instance member 'getA' within property initializer; property initializers run before 'self' is available

class A  {

    var asd : String  = getA()

    func getA() -> String {
        return "A"

    }
}

Why are you storing it like that? Why not just do `var asd = "A"`. — Rakesha Shastri, Dec 11 '18 at 12:37
Because you need `self` to exist to use `getA`. The error is self-explanatory. — Rakesha Shastri, Dec 11 '18 at 12:39
@vaibby it would be easier to give you a solution if you show us your actual code. — Rakesha Shastri, Dec 11 '18 at 12:46

score 8 · Accepted Answer · answered Dec 11 '18 at 13:10

Property initializer run before self is available.

The solution is to lazy initialize the property:

class A {
    lazy var asd: String  = getA()

    func getA() -> String {
        return "A"
    }
}

That will initialize the property first time you are trying to use it.

score 2 · Answer 2 · answered Dec 11 '18 at 12:38

2

You first need to initialize your asd variable. Then in the init you can apply your function value to it.

class A  {
var asd : String = ""

init() {
    self.asd = self.getA()
}

func getA() -> String {
    return "A"

} }

answered Dec 11 '18 at 12:38

Jonathan

2 Answers2