[REBOL] Re: object funnies
From: g:santilli:tiscalinet:it at: 20-Oct-2001 15:02
Hello Ingo!
On 20-Ott-01, you wrote:
IH> (Having said that, I really like default to local, and I've
IH> once sent a proposal to feedback about a "reversed-logic"
IH> func:
IH> f: func[a /global g][ ... ]
use [apply] [
; apply a function recursively
apply: func [block [any-block!] code [function!]] [
foreach value :block [
either any-block? :value [
apply :value :code
] [
code :value
]
]
]
; you might find this useful, too...
recurse: func ['word [word!] block [block!] code [block!]] [
code: func reduce [word] code
apply block :code
]
my-func: func [spec [block!] code [block!] /local globals locals] [
either globals: find spec /global [
spec: copy/part spec globals
globals: copy next globals
] [
globals: []
]
locals: make block! length? code
recurse value code [
if any-word? :value [
append locals to-word :value
]
]
foreach value spec [
if any-word? :value [
append globals to-word :value
]
]
locals: exclude locals globals
insert insert tail spec /local locals
func spec code
]
]
>> f: my-func [a b /global + print set] [
[ c: a + b
[ print [a b c]
[ set [e f g] [5 6 7]
[ print [e f g]
[ ]
>> source f
f: func [a b /local c e f g][
c: a + b
print [a b c]
set [e f g] [5 6 7]
print [e f g]
]
>> f 3 4
3 4 7
5 6 7
IH> But AFAIK it is not possible to add words to a context once
IH> it's created, so we just _can't_ catch every word in the
IH> local context, yet ...
Really? :-)
Anyway, I don't like it this way. I find it more difficult to
remember to enumarate the global words... (I hate PHP for this...)
Regards,
Gabriele.
--
Gabriele Santilli <[giesse--writeme--com]> - Amigan - REBOL programmer
Amiga Group Italia sez. L'Aquila -- http://www.amyresource.it/AGI/
