What's the go with the GC these days?

[Meta]

On Saturday, 5 January 2019 at 23:51:53 UTC, Nicholas Wilson 
wrote:
> On Saturday, 5 January 2019 at 22:42:11 UTC, Meta wrote:
>> On Saturday, 5 January 2019 at 22:05:19 UTC, Manu wrote:
>>> Is progress possible, or is the hard reality that the 
>>> language is just designed such to be resistant to a quality 
>>> GC, while the ecosystem sadly tends to rely on it?
>>>
>>> Where's the ARC stuff? What happened to opAddRef/opRelease?
>>
>> As per Andrei's talk at the last Dconf, ref counting requires 
>> __mutable to play nicely with const and immutable.
>
> I'd rather have opHeadMutable than __mutable, does the same 
> thing but doesn't subvert  the type system

I'm fairly dubious of adding __mutable as well, but I'm assuming 
the previous solution of using an AfixAllocator didn't pan out. I 
don't know enough about opHeadMutable to consider whether it 
would address the same problems.