[REBOL] Re: [Fwd: Accessing a variable's method]
From: ingo:2b1 at: 10-Oct-2003 18:04
Hi Arnoux,
Arnoux Vincent wrote:
> A few anti-slashes have been added (dunno know why...) :
>
> Hi List,
> I have a list of objects:
> l: copy []
> obj: make object! [ a: none calc: does [self/a: (self/a + 1)]]
> append l make obj [a: 1]
> append l make obj [a: 2]
>
> I would like to write a function like:
> inc-obj: func [arg][
> arg/calc
> ]
>
> That would allow me to do:
> foreach o l [
> inc-obj o
> ]
Up to here, no problem. (though I don't know why you don't want to use
foreach o l [ o/calc ]
> And output:
> probe (first l)/a
> 2
> probe (second l)/a
> 3
But this won't work, because parens!s are not allowed in paths ... however
you can do any of the following ...
probe l/1/a
== 2
probe l/2/a
== 3
num: 1
probe l/:num/a
== 2
and becoming somewhat esoteric ...
probe get in first l 'a
== 2
I hope that's enough for now ...
Ingo
