In Swift 3 the dispatch_once function was removed and the migration guide suggests to use initializing closure:
let myGlobal = { … global contains initialization in a call to a closure … }()
_ = myGlobal // using myGlobal will invoke the initialization code only the first time it is used.
I'd like to access 'self' instance variables from within the initializing closure like so:
class SomeClass { var other = SomeOtherClass() let initialize: () = { // self.other - this doesn't work, complains about unresolved identifier 'self' // how to access self.other here? } () func doSomething() { // initialize will only be called once initialize }
}Why is 'self' not accessible in the closure and how can make it to be?