Yet another terrible compile time argument proposal

[zjh]

On Sunday, 14 January 2024 at 21:27:44 UTC, Steven Schveighoffer 
wrote:

> I'm going to propose something that furthers the baggage of 
> `enum`, but that is the tool we currently have... Happy to 
> think about better syntax. But why not just:
>
> ```d
> void foo(T)(T x, enum string s)
> {
>    pragma(msg, s); // s is compile-time
> }
>


Formatting string is essentially a `compile time` parameter, 
placed within a runtime parameter and using a `sliding template` 
is a great idea.

Sometimes, the parameters of some functions require both 
`compilation time and runtime`! I think it would be great to 
create a `sliding template` for uniformity.