[REBOL] Bug? 'func not really 'func
From: al:bri:xtra at: 9-Oct-2000 23:52
REBOL/View 0.10.38.3.1 3-Oct-2000
Copyright 2000 REBOL Technologies. All rights reserved.
>> source func
func: func [
"Defines a user function with given spec and body."
[catch]
spec [block!] {Help string (opt) followed by arg words (and opt type and
string)}
body [block!] "The body block of the function"
][
throw-on-error [make function! spec body]
]
>> first :func
== [spec body]
>> second :func
== [
throw-on-error [make function! spec body]
]
>> third :func
== [
"Defines a user function with given spec and body."
[catch]
spec [block!] {Help string (opt) followed by arg wor...
----^^^^^^^^^^^^^
Take special notice of "spec [block!]" here.
>> zot: func copy/deep third :func copy/deep second :func
-------------^^^^^^^^^^^^^^^
That should make a copy, shouldn't it? Let's check:
>> third :zot
== [
"Defines a user function with given spec and body."
[catch]
spec [datatype!] {Help string (opt) followed by arg ...
----^^^^^^^^^^^^^^^^
Hmmmm... That seems a little odd?!
>> source zot
zot: func [
"Defines a user function with given spec and body."
[catch]
spec [datatype!] {Help string (opt) followed by arg words (and opt type
and string)}
body [datatype!] "The body block of the function"][
throw-on-error [make function! spec body]]
>> test: zot [arg] [none]
** Script Error: zot expected spec argument of type: datatype.
** Where: test: zot [arg] [none]
>> f: func [arg] [none]
>> source f
f: func [arg][none]
Where did 'throw-on-error go to?! After all it's present here:
>> source func
func: func [
"Defines a user function with given spec and body."
[catch]
spec [block!] {Help string (opt) followed by arg words (and opt type and
string)}
body [block!] "The body block of the function"
][
throw-on-error [make function! spec body]
]
Looks like there's _two_ 'func in Rebol.
Andrew Martin
ICQ: 26227169
http://members.nbci.com/AndrewMartin/
