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Re: Tree-sitter and major mode inheritance
From: |
Eli Zaretskii |
Subject: |
Re: Tree-sitter and major mode inheritance |
Date: |
Sun, 20 Nov 2022 09:28:09 +0200 |
> Date: Sun, 20 Nov 2022 01:42:04 +0200
> Cc: Eli Zaretskii <eliz@gnu.org>, emacs-devel@gnu.org,
> monnier@iro.umontreal.ca, theo@thornhill.no
> From: Dmitry Gutov <dgutov@yandex.ru>
>
> On 20.11.2022 01:36, Yuan Fu wrote:
> > If we keep js-mode as-is, and add js-base-mode and js-ts-mode,
> > (derived-mode-p ‘js-mode) should keep working as before, or maybe I’m
> > msiunderstanding your question?
>
> (derived-mode-p 'js-mode) will return nil in js-ts-mode.
>
> Which could be a problem when this call is used as a substitute for a
> file type check (e.g. "are we editing a JavaScript file?"), which is one
> of its common uses.
This test can only work on the assumption that there's a single parent mode
for all the modes which support a given programming language. This is a
fragile assumption, so code which is based on it is broken and should be
fixed.
IOW, I don't think we should feel ourselves bound by this fragile
assumption (assuming the solution we decide on breaks it).
- Re: Tree-sitter and major mode inheritance, (continued)
- Re: Tree-sitter and major mode inheritance, Po Lu, 2022/11/19
- Re: Tree-sitter and major mode inheritance, Dmitry Gutov, 2022/11/19
- Re: Tree-sitter and major mode inheritance, Yuan Fu, 2022/11/19
- Re: Tree-sitter and major mode inheritance, Dmitry Gutov, 2022/11/19
- Re: Tree-sitter and major mode inheritance, Dmitry Gutov, 2022/11/19
- Re: Tree-sitter and major mode inheritance, Yuan Fu, 2022/11/19
- Re: Tree-sitter and major mode inheritance, Dmitry Gutov, 2022/11/19
- Re: Tree-sitter and major mode inheritance,
Eli Zaretskii <=
- Re: Tree-sitter and major mode inheritance, Dmitry Gutov, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Eli Zaretskii, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Dmitry Gutov, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Eli Zaretskii, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Yuan Fu, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Eli Zaretskii, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Yuan Fu, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Eli Zaretskii, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Dmitry Gutov, 2022/11/20
- Re: Tree-sitter and major mode inheritance, Eli Zaretskii, 2022/11/20