Traits mega template

[Per Nordlöw]

On Saturday, 9 August 2025 at 17:16:21 UTC, monkyyy wrote:
> would a single mega template lib of traits bullshit be more 
> wildly more compile time and usable efficient then phoboes 
> isBlahBlahBlah?
> when a isBidirectionalRange || isRandomAccess range is called,

All of Phobos's traits should be transcoded to builtin __traits 
for performance reasons. Using templates to implement traits is 
an anti-pattern both in D and C++ as templates are too costly and 
design for this purpose. This is how C++ does it. The C++ 
standard makes this a requirement for compiler implementations. 
The reason is performance. Until D has type functions that is.