Why does this mixin fail to compile?

[IchorDev]

On Monday, 12 August 2024 at 15:23:31 UTC, Stefan Koch wrote:
> It's about 12.000 lines of code.
> I am not sure how much has rotted away, I last touched it in 
> 2021.
>
> The relevant files would be:
> the bytecode interpreter:
> https://github.com/UplinkCoder/dmd/blob/newCTFE_2093/src/dmd/ctfe/bc.d
> the visitor that builds the bytodecode:
> https://github.com/UplinkCoder/dmd/blob/newCTFE_2093/src/dmd/ctfe/ctfe_bc.d
>
> as you can see by the branch name it was rebased on dmd 2.093.
> so that's a few versions old now.

My word! I wonder how difficult it would be to maintain that if 
it actually got merged into dmd. Do you remember what parts of it 
were left unfinished?

> As far as I know Max Haughton has tried to rebase it on master 
> and improve it but I have not heard from him about that.

I won’t get my hopes up for one person to rebase 12k lines 
through 14.5K commits. It’s simply not feasible. I think a larger 
community effort would be required to successfully resurrect this 
implementation; although I am perhaps foolhardy enough to try it 
myself…