Re: state of the Lua nation on resource cleanup

[Mark Hamburg <mark@...>]

On Feb 16, 2009, at 5:16 AM, Roberto Ierusalimschy wrote:

> > Vaguely:
> >
> > 1. There needs to be a way to replace the environment on a function  
> > and
> > get a new function. ..
> >
> > 2. It would be nice to have a way to call a function with a  
> > particular
> > environment even if that function has a protected environment.  
> > Something
> > like:
> >
> > 	call_with_environment( environment, nesting, fn, ... )
>
> If you have (1) than you get (2), no? (Create the clone and call it.)

Yes, (1) gets you (2) though it comes at a price in memory allocation.

> But (1) seems dangerous in some scenarios.

I don't see that it's any more dangerous than setfenv. It just avoids  
stomping other uses of the function.

Mark