As long as they use the same symbol table, putting them into the same sig, src, and fns tables makes logical sense.
Realistically, src should be defined for '= (presuming you could discriminate for global symbols), and all of them redefined for every assignment macro that uses the global symbol table.
Unfortunately, it can't work for all def* forms, because some of them save their functions to different tables. For example, defop saves its functions to the srvops* table, so adding those functions to the 'sig table could result in name collisions.
Is it possible to make temporary changes to variables/hash tables? Suppose I wanted '= to save the assignment code "(= place value)" to a table using place as the key, but I only want that change to be valid for the current scope. For example
arc> (= a 42)
42
arc> src.a
(= a 42)
arc>(let b 16
(= a b)
src.a)
(= a b)
arc> src.a
(= a 42)
Is that possible? The idea would be to do the same thing for def and mac so that you can know the current definition of any symbol.
whoops, good point. I was intending to make a a new local variable and redefine it using '= to a new value. In that case, the value of a would obviously be local, so redefining its source in the global table would obviously not make sense.
The problem with save/restore is that it isn't thread safe. Hmmm.
