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From: Jean Louis <bugs@gnu.support>
To: Davin Pearson <davin.pearson@gmail.com>
Cc: help-gnu-emacs@gnu.org
Subject: Re: Fwd: How do I go about debugging my Elisp code?
Date: Fri, 14 Jan 2022 11:24:06 +0300	[thread overview]
Message-ID: <YeEzJuZqPJST5WYi@protected.localdomain> (raw)
In-Reply-To: <CAG9ihEvRer6ij9Ur3LfwRWhEJM4esRpBzT8_daD=9muPmu+jQg@mail.gmail.com>

I join to advise by Michael from Sweden as to make it a proper
package, use byte-compiler messages and warnings first.

You could use M-x emacs-lisp-byte-compile to find various warnings and
that is also for debugging purposes.

What I often do is instrumenting the function for Edebug and using
xref package to move from function to function.

Here is the method:

1. First find the function which you suspect or wish to debug, or the
   one which you are invoking.

2. Press C-u for prefix followed by C-M-x within the function. This
   will instrument the function for Edebug.

3. Run the function to begin the process. Once instrumenting process
   begins, click "n" for next and verify various values and how
   function is executed. You will find out what is wrong.

4. If you see that function is calling other function where you think
   that problem exists, instrument that other function as well.

5. To remove instrumentation use M-x edebug-remove-instrumentation and
   remove functions which you don't want to inspect any more.


-- 
Jean

Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns

In support of Richard M. Stallman
https://stallmansupport.org/



  parent reply	other threads:[~2022-01-14  8:24 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAG9ihEv+vex+5=PLcn2Pvs1RLQQgGVjjD7_sGxcZOYscr2mj=g@mail.gmail.com>
2022-01-13  1:22 ` Fwd: How do I go about debugging my Elisp code? Davin Pearson
2022-01-13  1:34   ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-13 12:58   ` Michael Heerdegen
2022-01-14  6:55   ` Marcin Borkowski
2022-01-14  8:24   ` Jean Louis [this message]
2022-01-14 23:22     ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-14 13:46   ` Jean Louis
2022-01-14 14:56     ` Tassilo Horn
2022-01-14 15:20       ` Jean Louis
2022-01-14 16:23         ` Tassilo Horn
2022-01-14 16:53           ` Jean Louis
2022-01-14 17:24             ` Tassilo Horn
2022-01-14 17:57               ` Jean Louis
2022-01-14 18:58                 ` Tassilo Horn
2022-01-15  7:34                   ` Jean Louis
2022-01-14 18:56             ` Marcin Borkowski
2022-01-14 19:02               ` Jean Louis
2022-01-14 19:51                 ` Tassilo Horn
2022-01-15  7:35                   ` Jean Louis
2022-01-15 10:15                     ` Tassilo Horn
2022-01-15 11:33                       ` Jean Louis
2022-01-18  0:03                         ` Davin Pearson
2022-01-14 23:28               ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-14 23:26       ` NonGNU ELPA (was: Re: Fwd: How do I go about debugging my Elisp code?) Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-15  7:39         ` Jean Louis
2022-01-17  3:47           ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-17 18:15             ` Jean Louis
2022-01-18  0:01               ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-18  5:02                 ` Jean Louis
2022-01-18  6:06                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-18  3:02               ` NonGNU ELPA Stefan Monnier via Users list for the GNU Emacs text editor
2022-01-18  3:20                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-18  3:49                   ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-01-21 21:32                     ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-22  4:00                       ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-01-22  4:53                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-22  5:23                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-22  5:24                           ` Po Lu
2022-01-22  5:38                             ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-22  6:32                               ` Po Lu
2022-01-22  6:42                                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-22  7:10                                   ` Po Lu
2022-01-22 12:24                                 ` Jean Louis
2022-01-22 12:38                                   ` Po Lu
2022-01-22 11:13                               ` Jean Louis
2022-01-22 13:43                                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-23  9:24                                   ` Jean Louis
2022-01-23 16:26                             ` Stefan Monnier via Users list for the GNU Emacs text editor
2022-01-23 16:39                               ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-22  4:58                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-22  5:05                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-18  3:23                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-14 17:40     ` Fwd: How do I go about debugging my Elisp code? Yuri Khan
2022-01-14 17:51       ` Jean Louis
2022-01-14 23:31       ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-14 23:24     ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-15  2:13       ` Emanuel Berg via Users list for the GNU Emacs text editor
2022-01-15  8:24         ` Jean Louis

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