Slow code, slow

[ketmar]

H. S. Teoh wrote:

> On Sat, Feb 24, 2018 at 09:43:35AM +0000, Stefan Koch via Digitalmars-d 
> wrote:
> [...]
>> This particular slowdown happens because there are somehow depdencies
>> on std.format.format which is instantiated.
>> Which has a ton of dependencies itself.
>
> Aha!  That explains it.  Thanks, Stefan, for the accurate diagnosis. :-)
>
> Now the next problem is: how to trim the fat off std.format ...

no wai. it is just Too General to be slim. what can be done, though, is 
`std.format.lite` module (or something), that supports only a very small 
subset of "big format" features, like simply printing numbers, arrays, and 
unconditionally calling `.toString` on structs/classes, and a very 
restricted set of formatting options. that should cover alot of use cases. 
'cause most of the time people only need something like `%3d %s` and such.