Re: Locals in Lua Environments

[Stefan Brantschen <sbr@...>]

On 29 May 2007, at 00:21, Tim Hunter wrote:

> > Under the risk of sounding stupid, just a curiosity: is there any  
> > reason I should not be able to access the function arguments when  
> > I access the function environment via getfenv() ?
> >
> > My guess would be that this is some colateral effect of the  
> > paremeters being local.
> >
> > I have no doubt that the argument variables should be local - so  
> > they won't collide with global environment. But when I am  
> > accessing my caller's environment from another function, the lack  
> > of access to his arguments looks kinda strange to me.
> I'm using the debug library to do this. debug.getlocal(2,2) gets me  
> the 2nd argument to the caller, for example.

But note that this is not recommended as "usual programming tool", ie  
for anything else but debugging and such.

  => <http://www.lua.org/manual/5.1/manual.html#5.9>
  => PIL II chapter 23

With regards
-- Stefan