@Atomic property wrapper for standard library?

[lorentey (Karoy Lorentey)]

The pitch for enabling direct access to ivar storage locations is now up in a separate topic:

Exposing the Memory Locations of Class Instance Variables

Dear Swift folks, Here is a pitch to plug a small hole in the stdlib API by providing a reliable method to retrieve the address for any directly addressable stored property inside a class instance. The need to work with such addresses comes up particularly often when we try to use synchronization tools to manage concurrency, and it's especially desirable when working with atomic primitives. This pitch is the first in a series, hopefully culminating in a draft for a memory model for Swift progr…

The examples discussed there are somewhat relevant to this discussion, too.