Phobos' slow descent into madness

[Andrei Alexandrescu]

On Friday, 7 May 2021 at 22:36:09 UTC, MoonlightSentinel wrote:
> On Friday, 7 May 2021 at 20:47:57 UTC, Andrei Alexandrescu 
> wrote:
>> In turn, format turns out to be used, often gratuitously, in 
>> very, very many places during compilation, particularly in 
>> std.traits itself (as an aside: format("%s[]")? Really? What 
>> happened with good old string concatenation?).
>
> Except that string concatenation doesn't work with callback / 
> output range based `toString` implementations.

Point taken, but I was referring to compile-time uses where that 
is practically never. There are zero instances of that case here: 
https://github.com/dlang/phobos/pull/8052. Almost in all cases 
the code that replaces calls to format() is shorter and simpler.