[REBOL] Re: global error handling?
From: g:santilli:tiscalinet:it at: 25-Jul-2003 10:02
Hi Maxim,
On Friday, July 25, 2003, 1:33:42 AM, you wrote:
MOA> This has many uses and if its possible I'd like to integrate the mechanism in steel...
I think you can't do what you're thinking of. (You'd need
continuations, or some way to come back to the point where an
exception was raised after it was raised.)
If you want to make steel load libraries automatically based on
the words a script it using, you could do it in a different way
though. As long as all of the script is loaded, you have all of
its words in SYSTEM/WORDS. If you QUERY/CLEAR SYSTEM/WORDS
*before* loading the script and then QUERY it again after loading
it you'll see all the new words present in the script; you can
look for them and collect those that are unset.
>> query/clear system/words
== [end! unset! error! datatype! context! native! action! routine! op! function! object!
struct! library! p
ort! any-type! any-word!...
>> s: load {print "hello" some-library-func print "finished"}
== [print "hello" some-library-func print "finished"
]
>> query system/words
== [s some-library-func]
>> value? 'some-library-func
== false
Regards,
Gabriele.
--
Gabriele Santilli <[g--santilli--tiscalinet--it]> -- REBOL Programmer
Amiga Group Italia sez. L'Aquila --- SOON: http://www.rebol.it/
