Re: Is there anyway to make a new Lua closure sharing the same code with old one but with different env table?

[GrayFace <sergroj@...>]

Here's the dumb solution I can think of:
dump function and load it, then join upvalues with the original 
function. They won't have the same proto, but will do the same thing and 
share upvalues.
I've made a patch for Lua 5.1 for upvaluejoin and can upload it somewhere.

With use of internal API I think it can be done more elegant and exactly 
as you need, but that's just my guess.

On 21.06.2010 10:03, Chaos Wang wrote:
> Hi,
>
> I wonder if there is any way to clone a Lua closure, where the clones 
> share the same Proto and upvalues but have different environment tables?
>
> I tried lua_pushvalue(), but it only make a direct reference for 
> GC-able object (which includes closures), so there can't be different 
> environment tables coexisted.
>
> Any ideas?
>
> Thanks!

--

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