Proof of concept for v2 - NO duplication, NO `static if` hell, NO difficulty with interoperability

[Atila Neves]

On Saturday, 6 November 2021 at 01:45:45 UTC, deadalnix wrote:
> On Friday, 5 November 2021 at 17:33:54 UTC, Andrei Alexandrescu 
> wrote:
>> On 2021-11-05 11:06, Paul Backus wrote:
>>> On Friday, 5 November 2021 at 14:08:58 UTC, Andrei 
>>> Alexandrescu wrote:
>>>> We never got reference counting to work in safe pure nogc 
>>>> code. And we don't know how. If we did, we could write a 
>>>> slice-like type that does everything a slice does PLUS 
>>>> manages its own memory. This is the real problem with 
>>>> containers.
>>> 
>>> I'm pretty sure at least some of us (including Atila) know 
>>> how.
>>
>> Please post the code, thanks!
>>
>> Main problem is getting reference counting to work reliably in 
>> the presence of purity and immutability.
>
> That and preventing the this pointer from escaping.

Unless I'm missing something, `scope` and dip1000 cover that.