Re: Function as metatable (metafunctions?)

["Thiago L." <fakedme@...>]

On 31/03/2014 14:28, Coda Highland wrote:
> On Mon, Mar 31, 2014 at 10:14 AM, Petite Abeille
> <petite.abeille@gmail.com> wrote:
> > On Mar 31, 2014, at 2:57 AM, Thiago L. <fakedme@gmail.com> wrote:
> >
> > > I mean I can't set __metatable to a function so…
> > Eh?
> >
> > local aFunction = function() end
> > debug.setmetatable( aFunction, { __tostring = function() return 'm e t a  f u n c t i o n' end } )
> > print( aFunction )
> That's setting the metatable OF a function.
>
> What doesn't work is:
>
> debug.setmetatable( aFunction, function(key) return --[[magic]] end )
>
> I myself am still trying to figure out the exact USE case, but I at
> least know what's being asked for.
>
> /s/ Adam
local stringmetatable = getmetatable("")
debug.setmetatable("", function(key)
if key == "__metatable" then
-- some magic
else
-- some other magic to get the env and do stuff (and then we use the 
stuff from the __metatable hack)
end)

Or something like that... (and then you can just do 
getmetatable("").__index = whatever instead of 
getmetatable("")().__index = whatever, so it's seamless sandboxing)