Re: funcrefs forms

On Dec 30, 2013 5:58 PM, "Alexandre Hoïde" <alexandre.hoide@gmail.com> wrote:
>
> On Mon, Dec 30, 2013 at 08:55:17AM +0100, Alexandre Hoïde wrote:
> > .vim <--
> > function! s:SID()
> >   return matchstr(expand('<sfile>'), '<SNR>\zs\d\+\ze_SID$')
> > endfunction
> >
> > function! s:objectConstructor(name)
> >   let obj = {}
> >   let obj.name = a:name
> >   let obj.form1 = s:objFuncs.form1
> >   let obj.form2 = function('<SNR>' . s:SID() . '_s:objFuncs_form2')
> >   return obj
> > endfunction
> >
> > let s:objFuncs = {}
> >
> > function! s:objFuncs.form1()
> >   echo self.name
> > endfunction
> >
> > function! <SID>s:objFuncs_form2() dict
> >   echo self.name
> > endfunction
> >
> > let otst = s:objectConstructor('test')
> > call otst.form1()
> > call otst.form2()
> > -->
>
>   … to be more specific, on the sample code above, the following :
> <--
> echo function('s:objFuncs.form1')

Now please try calling this (i.e. just append ()). *function() is not a replacement for eval*. You have found function() bug, nothing more. To get *real* results *echo actual funcref*. As I said if you define function inside a dictionary *you already get funcref*. Thus what you need is just echo s:objFuncs.form1.

> echo function('<SNR>' . s:SID() . '_s:objFuncs_form2')
> --> Gives <--
> <SNR>36_objFuncs.form1
> <SNR>36_s:objFuncs_form2
> -->
>
>   Except form1 being {anonymous,numbered}-function and form2 beeing
> just a dictionary-function, I don't see much difference between the 2
> forms.
>
>   The 1st form being more concise, I was wondering
>   a) why would someone use form2 (which I came accross on riml¹ README).
>   b) what makes the anonymous form1 preferable (besides conciseness)
>
> ¹ https://github.com/luke-gru/riml
>
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