Swift: Get extension variable inside itself

Asked Feb 15 '16 at 05:07

Active Feb 15 '16 at 05:07

Viewed 285 times

For example, I have a var a and want to access it with a function:

extension SKNode {

    static var a = true

    func aaa() -> Bool {
        return self.a
    }

}

When I try this, it says "Static member 'a' cannot be used on instance of type SKNode"

asked Feb 15 '16 at 05:07

Just remove `static`. – Code-Apprentice Feb 15 '16 at 05:20
Then I get the error "Extensions may not contain stored properties" – Sergio Toledo Piza Feb 15 '16 at 05:22
What happens if you remove `self.` instead? – Code-Apprentice Feb 15 '16 at 05:23
I get the same error that is showing on the question – Sergio Toledo Piza Feb 15 '16 at 05:25
I suggest googling both of the error messages you are getting. – Code-Apprentice Feb 15 '16 at 05:27
1

http://stackoverflow.com/questions/25426780/swift-extension-stored-properties-alternative, for instance, might help. – Code-Apprentice Feb 15 '16 at 05:29
I'll check it, thanks! – Sergio Toledo Piza Feb 15 '16 at 05:33
1

@SergioToledoPiza declare it as a computed property `var a: Bool { return true }` – Leo Dabus Feb 15 '16 at 05:48
thanks leo! and do you know what should I do to make it possible to be changed? like setting `myNode.a = false` – Sergio Toledo Piza Feb 15 '16 at 06:04
@SergioToledoPiza: please describe what you really want to do. Why are trying to add a new property to `SKNode`? – Luca Angeletti Feb 15 '16 at 16:15

0 Answers0