[Chicken-users] Re: eval and local variables

[Chicken Monk]

felix winkelmann wrote:

> > 2. Is it possible to get the "local environment" (which should have
> > access to b and c)?  Is there even such a thing, or am I seeing this
> > completely wrong?
>
> This is not possible in general, unless you really want to peek
> into the internal representation of a closure.

Thank you for your reply, Felix.

You'll have to pardon my ignorance... I am used to Python, where "eval" 
and "exec" have access to all the variables that regular code has, even 
in nested scopes.  So I was wondering if something similar could be done 
in Scheme.

The way I see it (and which is most likely incorrect :-): regular code 
has access to variables in the current and enclosing scopes, so the 
functionality is already there... so maybe it would be possible to have 
a function (local-environment) that returns an environment containing 
the local variables?  Of course it would need a parent environment, 
which I don't think environments.egg supports.

I will probably need to take a look at the Chicken source code to see 
how it's *really* implemented. :)

Oh, which leads me to another question: I am currently using Chicken 
2.6.  Judging from the change log, a lot has been changed/added since 
then.  Is the development version stable enough to use for everyday 
coding, or should I stick with the "official" 2.6 for a while?

Thanks,

--
Chicken Monk
"God loves ya. And she loves me too."