On Jan 8, 10:00 pm, "Ian Tegebo" <[EMAIL PROTECTED]> wrote:
> I'm exploring functional programming with vimL and immediately ran into
> seemingly counter-intuitive behavior:
>
> ------------------------------------
> function! Outer()
> let outer_var = 0
> function! Inner()
> let outer_var += 1
> endfunction
> call Inner()
> echo outer_var
> endfunction
>
> call Outer()
> -------------------------------------
>
> The result, when I run this from 7.1.156, is that 'Inner' reports
> 'outer_var' as
> unknown. I was expecting '0' but would eventually like to have my 'Inner'
> use 'outer_var' as state via dictionaries or some other mechanism. It's
> disturbing that 'outer_var' is not available to 'Inner'.
>
> Am I missing something?
>
There are no closures in what you call vimL. Your code is equivalent
to
this :
------------------------------------
function! Outer()
let outer_var = 0
call Inner()
echo outer_var
endfunction
function! Inner()
let outer_var += 1
endfunction
call Outer()
-------------------------------------
As Tony pointed out, you have 2 different local variables.
-ap
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