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bug#62204: 30.0.50; Feature Request: treesit-major-mode-hook
From: |
Aleksandar Dimitrov |
Subject: |
bug#62204: 30.0.50; Feature Request: treesit-major-mode-hook |
Date: |
Thu, 16 Mar 2023 01:35:17 +0100 |
User-agent: |
mu4e 1.8.14; emacs 30.0.50 |
>> Currently, I've found two ways to accomplish loading my functionality for
>> all ts-modes:
>>
>> - enumerate them all and use their respective hooks
>> - advise something like `treesit-major-mode-setup` to execute my code
>
> Isn't it enough to check that the buffer has a treesit parser?
I'm not sure I understand you, so I'll try to provide some code.
I'd like to be able to do something like this:
(defun my-setup ()
"Code that depends on the presence of TS")
(add-hook 'treesit-major-mode-hook 'my-setup)
If I understand you correctly, I could probably do something like this:
(defmacro add-ts-mode-hook (f)
"Add mode hook that only executes in ts modes"
`(add-hook 'prog-mode-hook
(lambda ()
(when (treesit-language-at (point))
(,f)))))
I'd say there's bound to be more people who would like to configure a
certain behaviour whenever treesit is available, regardless of major
mode. A macro like the above could be a possible solution, but it
doesn't feel terribly ergonomic.
> A hooks sounds too blunt and ad-hoc for your purposes, AFAIU.
The reason I want to execute my function in a hook is that it sets
buffer local variables, and configures buffer-local behaviour, perhaps
even keybindings. I was under the impression that hooks are the correct
place to do this.