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Re: Defining functions within functions?
From: |
Marcin Borkowski |
Subject: |
Re: Defining functions within functions? |
Date: |
Wed, 25 May 2016 08:20:12 +0200 |
User-agent: |
mu4e 0.9.16; emacs 25.1.50.1 |
On 2016-05-24, at 23:56, Drew Adams <drew.adams@oracle.com> wrote:
>> And I wanted to use the former variant, but it struck me as not very
>> elegant. As for the latter, I'm not sure I understand it exactly, but
>> I'll give it some thought.
>>
>> For now, I decided to go with lambdas, but also to sprinkle the code
>> with comments. Old-fashioned, but should do the jon in my case.
>
> A suggestion: Post a concrete example of what you need, and
> see what concrete suggestions you get.
>
> Typically, this stuff is not complicated. The first thing
> to do, IMO, is to determine whether you really need/want to
> do something special/complicated. Why do you think you want
> a nested defun or other form of local function definition?
The reason is simple: I have this long, almost 60-lines function, with
three levels of lambdas nested. (I'm using request.el, and I have to
make two requests sequentially, so I have a callback inside a callback.
I could probably use deferred or something, this is one of the ideas.)
It's just pretty complicated, and changing anything in this code is
a headache. Also, edebugging is simpler with separate instrumentable
defuns.
Best,
--
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University