retain
Points to the function which increments a reference count for the given element. If NULL, then nothing is done for reference counting.
Declaration
var retain: ((NSMapTable<AnyObject, AnyObject>, UnsafeRawPointer) -> Void)?Points to the function which increments a reference count for the given element. If NULL, then nothing is done for reference counting.
var retain: ((NSMapTable<AnyObject, AnyObject>, UnsafeRawPointer) -> Void)?