Reimplementing the bulk of std.meta iteratively

[Adam D. Ruppe]

On Thursday, 8 October 2020 at 13:27:50 UTC, Stefan Koch wrote:
> please post the source of your lib.

it is over here 
https://forum.dlang.org/post/zhaziudnbaoybmfdrzxn@forum.dlang.org

> Benchmark is incoming.

I don't expect it to win, this is more to demo existing language 
api style possibilities. This style lost to existing Phobos 
std.meta when I tried.