[REBOL] context of a function Re:(5)
From: rebol:techscribe at: 22-Aug-2000 0:06
Hi Brian,
Indeed it is. I didn't investigate that throughly enough. The
implementation is not exactly consistent with its intended use. I wonder
whether that's a good thing ... guess it's not likely to cause any harm.
With respect to the function context binding I think it makes sense to skip
/local. That is consistent with the intended use of /local.
>>With exception of /local all of these words are bound to the function's
>>context, as soon as the function is constructed.
>>
>> >> fblock: foreach word first :f [
>> if word <> /local [
>> append [] to word! word
>> ]
>>]
>>== [a ref b]
>
>Actually, the word local is bound to the function as well.
>/local is just another refinement - it's just treated in a
>special way by the help function.
>The evaluator doesn't
>treat it in a special way. You can preset locals like this:
>
> >> f: func [a /local b] [add a any [b 1]]
> >> f/local 1 3
>== 4
>
>I don't know about you, but I found this quite amusing. All
>those earnest REBOL programmers thinking /local is special,
>when it's really just a quick, elegant hack.
>
>I love this language :-)
>
>Brian Hawley
>
;- Elan [ : - ) ]
author of REBOL: THE OFFICIAL GUIDE
REBOL Press: The Official Source for REBOL Books
http://www.REBOLpress.com
visit me at http://www.TechScribe.com
