Re: how to iterate "in lua defined attributes" of an object

On Sun, Apr 25, 2010 at 05:50:14PM +0200, Gregor Burger wrote:
> hi,
> 
> i'm searching for this for a long time. i basically need the equivalent of
> the python '__dict__' object for an object. i know there exists a class_info
> class which has an 'attribute' table but this table doesn't seem to include
> the attributes that were defined in the lua code.

There isn't currently any documented or supported way of doing this. I
have plans to include something like this for 1.0, but it hasn't been
done yet. If you want to produce a patch you can look at the code in
object_rep.cpp, more specifically the get_instance_value() function.

Basically the lookup for an instance member goes:

 1. Look in the environment for the object.
 2. If it isn't there, and the environment table has a metatable; look in
    that metatable.

HTH,
-- 
Daniel Wallin
BoostPro Computing
http://www.boostpro.com

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