0class is a no-frills, down to earth class implementation, aiming for speed, no handholding.

It implements class API of https://github.com/Yonaba/30log and https://github.com/bartbes/Class-Commons, but a lot of compatibility is sacrificed for the sake of speed:

• mixin and fields copies are shallow; use deep copying mt proxy if you really want that
• mixins are thrown in with all fields; not just functions
• for single inheritance copies are avoided altogether
• book-keeping is absent, all classes are effectively anonymous

This results about 4.8x speed-up (both lua and luajit). Additionaly, more compatible, stripped version of 30log is provided, offering about 1.5x speed-up, because assert checks, tostring() and related book-keeping machinery is removed.