all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Ergus <spacibba@aol.com>
To: help-gnu-emacs@gnu.org
Subject: Re: Simple macro question
Date: Mon, 3 May 2021 03:29:38 +0200	[thread overview]
Message-ID: <20210503012938.avvld6ncgry256nt@Ergus> (raw)
In-Reply-To: <20210503000712.l2wh2liwhg3jfjxy@Ergus>

Equivalent code like this:

====================

;;; test.el --- test editing -*- lexical-binding: t; -*-

;;; Commentary:

;;; Code:

(defvar test-commands-list '(A B C)
   "List of replaced functions.")

(defun test-fun (com)
   "Testfun with COM."
   nil)

(defmacro test-def (thelist)
   "Doc def."
   `(progn ,@(mapcar #'test-fun thelist)))

(test-def (A B C))

(provide 'test)
;;; test ends here

============================

Says that: Symbol’s function definition is void: test-fun 


On Mon, May 03, 2021 at 02:07:12AM +0200, Ergus wrote:
>
>Hi:
>
>Playing with macros to generate function I got an problem I am not sure
>how to solve or why is it an issue
>
>In the following minimal code:
>
>==============================
>
>;;; test.el --- test editing -*- lexical-binding: t; -*-
>
>;;; Commentary:
>
>;;; Code:
>
>(defvar test-commands-list '(A B C)
>  "List of replaced functions.")
>
>(defmacro test-def ()
>  "Doc def."
>  `(eval-and-compile ,@(mapcar (lambda (com) nil) test-commands-list)))
>
>(test-def)
>
>(provide 'test)
>;;; test ends here
>
>==============================
>
>This code shows an error like:
>
>Symbol’s value as variable is void: test-commands-list
>
>in this line: (test-def)
>
>I can't use test-commands-list either in this way or as an input if I
>define the macro as:
>
>(defmacro test-def (commands-list)
>...
>
>(test-def test-commands-list)
>
>In this second case I get: wrong arguments sequencep test-commands-list
>
>Is this intended?
>
>



  reply	other threads:[~2021-05-03  1:29 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210503000712.l2wh2liwhg3jfjxy.ref@Ergus>
2021-05-03  0:07 ` Simple macro question Ergus
2021-05-03  1:29   ` Ergus [this message]
2021-05-03  1:46   ` Stefan Monnier
2021-05-03 11:32     ` Ergus
2021-05-04 19:54       ` Stefan Monnier via Users list for the GNU Emacs text editor

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210503012938.avvld6ncgry256nt@Ergus \
    --to=spacibba@aol.com \
    --cc=help-gnu-emacs@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.