String interpolation, after a healthy debate on discord

[bauss]

On Thursday, 16 December 2021 at 13:31:07 UTC, Adam D Ruppe wrote:
> On Thursday, 16 December 2021 at 13:19:16 UTC, deadalnix wrote:
>> So passing a raw a should work (it's an alias parameter).
>
> yeah
>
>> Which lead me to think, can't we generate some kind of struct 
>> on the fly for the "${}" syntax?
>
> I wrote about that back in 2019, indeed, at that point, it was 
> my preference:
> http://dpldocs.info/this-week-in-d/Blog.Posted_2019_05_13.html#my-string-interpolation-proposal
>
> But it brings its own problems: this forces at least partial 
> evaluation early which makes trouble with non-copyable types, 
> breaks ref and aliases, and might be trouble tracking lifetime.
>
> It is a solidly decent plan but not quite full D potential.
>
> But like I've said before, all this stuff has been discussed to 
> death. Some of us have been debating all this for years.

And nobody will ever agree, so we just have to somehow stick with 
one implementation or it'll never happen.