A reference method for 'self' that doesn't use either weak references or non-owning references

Reference.swift

import Foundation

class Closures {
    
    let memberVariable = "member"
    let memberVariable2 = "member2"
    
    func execute() {
        closures { [self] in
            print(memberVariable)
            print(memberVariable2)
        }
    }

    private func closures(_ handler: (() -> Void)) {
        handler()
    }
}

let c = Closures()

c.execute()