Function Generation in D: The Good, the Bad, the Ugly, and the Bolt

[jmh530]

On Monday, 28 September 2020 at 13:44:25 UTC, Mike Parker wrote:
> Jean-Louis Leroy sent in a blog post prompted by Andrei's 
> "Perfect forwarding" challenge from the July #beerconf. He digs 
> into D's metaprogramming and code generation facilities, and 
> shows how he arrived at his "refraction" module.
>
> The blog:
> https://dlang.org/blog/2020/09/28/function-generation-in-d-the-good-the-bad-the-ugly-and-the-bolt/
>
> Reddit:
> https://www.reddit.com/r/programming/comments/j1c6l6/function_generation_in_d_the_good_the_bad_the/

Interesting piece.

As part of the conclusion, it says:

"Some of the people helming the evolution of D are working on 
changing this, and it is my hope that an improved D will emerge 
in the not-too-distant future."

I found this a little vague. It might have been useful to briefly 
discuss what types of things would help fix these issues or what 
specifically people are working on (even with just a few links or 
a footnote).