D/Objective-C, extern (Objective-C)

[Adam D. Ruppe]

On Monday, 24 June 2013 at 17:53:36 UTC, Walter Bright wrote:
> Arc has very serious problems - I don't see how it can be done 
> and be memory safe without adding extensive pointer 
> annotations. The general problem is someone taking the address 
> of a member of the reference counted object. The rc goes to 
> zero, the objects gets deleted, and there's that dangling 
> pointer to it.

Just thinking out loud, but what if we were able to @disable the 
& operator? Then if you needed its address, we could do it with 
some other member function that returns a special type that does 
the refcount. That'd be a fairly minor language change and would 
seal the gap that the library could then fill back in.