How do I do this?

[Johan Engelen via Digitalmars-d]

On Thursday, 3 August 2017 at 12:33:54 UTC, Andrei Alexandrescu 
wrote:
>
> There's a bit of irony you can read a file during compilation 
> but not pass a string.

I always wondered about this. It makes things more cumbersome 
than needed.
Is it a conscious decision to not allow passing a string directly?

-Johan