Re: any plan about luajit2 support 5.2!

[GrayFace <sergroj@...>]

I haven't done sandboxing yet, but here are my 2 cents:
> (*) I guess most users won't care or won't need to know about _ENV.
>      But those that do are unlikely to upgrade, as they'll have to
>      ditch their sandboxing frameworks and redesign them from scratch.
Why do you think so? 'setfenv' and 'getfenv' implemented for _ENV aren't 
compatible with 5.1 analogs only when the _ENV upvalue isn't used. I 
doubt this will break much. Meanwhile, I think _ENV would make new 
sandboxes easier to make. _ENV is certainly very good for persistence, 
especially Pluto-like custom __persist functions.

As for __pairs and __ipairs, they have potential to break sandboxing or 
persistence by making it possible to fool the functions of framework 
that were written for 5.1.

--
Best regards,
Sergey Rozhenko                 mailto:sergroj@mail.ru