unofficial mirror of emacs-devel@gnu.org 
 help / color / mirror / code / Atom feed
From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Drew Adams <drew.adams@oracle.com>
Cc: "Basil L. Contovounesios" <contovob@tcd.ie>,
	Paul Eggert <eggert@cs.ucla.edu>, Pip Cet <pipcet@gmail.com>,
	emacs-devel@gnu.org
Subject: Re: master f51f963: Fix some side-effecting uses of make-text-button
Date: Sat, 06 Jun 2020 13:57:42 -0400	[thread overview]
Message-ID: <jwvd06cqdv7.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <170bedfa-7119-4d6a-9d4f-e94ba0f7cc2b@default> (Drew Adams's message of "Sat, 6 Jun 2020 09:57:23 -0700 (PDT)")

> But going backwards, toward some perhaps unneeded
> optimization, in the direction of systematically
> raising an error when trying to modify text
> properties of a string, is not a good idea, IMO.

I think there needs to be a clarification here: the issue is about
modifying data (here specifically strings, but the issue applies to all
other such data) that appears as literal in the code.

This issue is not one of optimization (preventing those modifications
would likely impose a slowdown, if anything) but one of detecting usage
that is usually a bug (one that leads to people being utterly
confused by the resulting behavior).


        Stefan




  reply	other threads:[~2020-06-06 17:57 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20200604223056.17078.81265@vcs0.savannah.gnu.org>
     [not found] ` <20200604223058.1850020A26@vcs0.savannah.gnu.org>
2020-06-04 22:44   ` master f51f963: Fix some side-effecting uses of make-text-button Stefan Monnier
2020-06-05  0:58     ` Paul Eggert
2020-06-05  9:27       ` Pip Cet
2020-06-05 10:51     ` Basil L. Contovounesios
2020-06-05 12:46       ` Pip Cet
2020-06-05 13:51         ` Basil L. Contovounesios
2020-06-05 14:31           ` Pip Cet
2020-06-05 15:48             ` Basil L. Contovounesios
2020-06-05 18:17         ` Paul Eggert
2020-06-06  8:18           ` Pip Cet
2020-06-06 16:57             ` Drew Adams
2020-06-06 17:57               ` Stefan Monnier [this message]
2020-06-06 19:00                 ` Pip Cet
2020-06-06 19:49                   ` Paul Eggert
2020-06-06 20:23                     ` Drew Adams
2020-06-07  9:14                     ` Pip Cet
2020-06-06 22:14                   ` Stefan Monnier
2020-06-07  1:40                     ` Paul Eggert
2020-06-07 15:24                       ` Stefan Monnier
2020-06-07 23:42                         ` Paul Eggert
2020-06-07  9:31                     ` Pip Cet
2020-06-06 20:19                 ` Drew Adams
2020-06-06 17:54             ` Paul Eggert
2020-06-06 19:41               ` Pip Cet
2020-06-06 20:15                 ` Paul Eggert
2020-06-07  9:21                   ` Pip Cet
2020-06-07 23:37                     ` Paul Eggert
2020-06-06 20:11               ` Drew Adams
2020-06-06 22:16                 ` Stefan Monnier
2020-06-06 23:27                   ` Drew Adams
2020-06-05 13:02       ` Stefan Monnier
2020-06-05 13:50         ` Basil L. Contovounesios
2020-06-06 19:09         ` Paul Eggert
2020-06-06 20:19           ` Drew Adams

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

  List information: https://www.gnu.org/software/emacs/

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

  git send-email \
    --in-reply-to=jwvd06cqdv7.fsf-monnier+emacs@gnu.org \
    --to=monnier@iro.umontreal.ca \
    --cc=contovob@tcd.ie \
    --cc=drew.adams@oracle.com \
    --cc=eggert@cs.ucla.edu \
    --cc=emacs-devel@gnu.org \
    --cc=pipcet@gmail.com \
    /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 public inbox

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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).