I'm on the move at the moment, but since you brought up defvar yesterday I wonder if that would be a simpler way to go..
Also, it's not clear why you're using the top-level eval. I think it might be unnecessary. Double unquoting is hard to get right so worth avoiding if at all possible. Edit 2 hours later: oh, I see the reason for the eval.
I read the link you suggested in my previous post about defvar, and I see that it can be used to set dynamic behavior when a variable is referenced (??). Is this the correct interpretation, and what might be some uses of that?
Yeah it lets you decide what to do when getting or setting a variable. The original link has an example at the bottom, but here's another one kinda related to what you seem to be trying to do:
arc> (= h (obj a 1 b 2))
#hash((a . 1) (b . 2))
arc> (defvar a
(fn args
(if args
; write
(= h!a car.args)
; read
h!a)))
arc> a
1
arc> (= a 3)
3
arc> a
3
arc> h
#hash((a . 3) (b . 2))
