From: Marcin Borkowski <mbork@mbork.pl>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: help-gnu-emacs@gnu.org, emacs-orgmode@gnu.org
Subject: Re: Why does evaluating a piece of Elisp code seemingly not expand a macro?
Date: Mon, 18 Jan 2016 21:03:33 +0100 [thread overview]
Message-ID: <8737tu8xka.fsf@mbork.pl> (raw)
In-Reply-To: <jwvio2rf10h.fsf-monnier+gmane.emacs.help@gnu.org>
On 2016-01-18, at 14:54, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>> Does it mean that C-M-x is different than loading?
>
> Yes.
>
>> Or C-x C-e, for that matter?
>
> As well.
>
>> Is this covered by the manual? (If not, it might need correcting.)
>
> Not really. The basic idea is that macroexpansion can take place
> *anytime* (tho, before the code is actually executed). If you care
> about when expansion takes place you probably have a bug.
Does that mean that it's possible that a function definition contains
unexpanded macros?
Does that mean that `symbol-function' will expand them?
Does that mean that if I define a macro, then a function using that
macro, and then change the definition of the macro, the behavior of the
function is undefined?
Sorry for so many questions, but I really want to understand this.
(Also, when that happens, I might send a patch for the manual.)
> Stefan
Best,
--
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University
next prev parent reply other threads:[~2016-01-18 20:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-15 10:08 Why does evaluating a piece of Elisp code seemingly not expand a macro? Marcin Borkowski
2016-01-15 10:57 ` Oleh Krehel
2016-01-17 22:56 ` Marcin Borkowski
2016-01-18 13:54 ` Stefan Monnier
2016-01-18 20:03 ` Marcin Borkowski [this message]
2016-01-18 20:19 ` Stefan Monnier
2016-01-15 21:10 ` Samuel W. Flint
2016-01-15 22:06 ` Nick Dokos
2016-01-15 22:24 ` Marcin Borkowski
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