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Re: [PATCH] before emit an error message, try to load the babel language
From: |
Ihor Radchenko |
Subject: |
Re: [PATCH] before emit an error message, try to load the babel language |
Date: |
Tue, 25 Apr 2023 08:12:57 +0000 |
lin Sun <sunlin7@yahoo.com> writes:
> Thanks for the comment.
> If we switch to the `add-variable-watcher', it seems we'll load the
> ob-LANG in the callback immediately.
> The previous change can lazyly load the babel languages until the user
> tries to evaluate the source block.
Is there any advantage doing the loading lazily?
I can only see disadvantages:
1. `setopt' already triggers loading when variable is set. It is just
`setq', often used in place of `setopt', that does not trigger
loading/unloading.
2. Lazy loading like you proposed will have to be added in a number of
places, not just when executing src block: `org-edit-special',
`org-src-associate-babel-session', `org-edit-src-code',
`pcomplete/org-mode/block-option/src', org-lint,
`org-babel-tangle-single-block', `org-babel-exp-src-block',
`org-babel-exp-results', and others.
3. We will also have to monitor newly added babel functions to take care
about lazy loading. Not to mention third-party code.
Admittedly, (2) can be solved by abstracting babel backend queries to
API. (I have a WIP code doing exactly this). However, I still see no
good reason to make `setq' different from what `setopt' does now.
Most people treat them interchangeably and then get surprised by the
differences.
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
- [PATCH] before emit an error message, try to load the babel language, lin Sun, 2023/04/22
- Re: [PATCH] before emit an error message, try to load the babel language, Ruijie Yu, 2023/04/22
- Re: [PATCH] before emit an error message, try to load the babel language, Ihor Radchenko, 2023/04/22
- Re: [PATCH] before emit an error message, try to load the babel language, lin Sun, 2023/04/23
- Re: [PATCH] before emit an error message, try to load the babel language, Ihor Radchenko, 2023/04/23
- Re: [PATCH] before emit an error message, try to load the babel language, lin Sun, 2023/04/24
- Re: [PATCH] before emit an error message, try to load the babel language,
Ihor Radchenko <=
- Re: [PATCH] before emit an error message, try to load the babel language, Ruijie Yu, 2023/04/25
- Re: [PATCH] before emit an error message, try to load the babel language, Ihor Radchenko, 2023/04/25
- Re: [PATCH] before emit an error message, try to load the babel language, Ruijie Yu, 2023/04/25
- Re: [PATCH] before emit an error message, try to load the babel language, lin Sun, 2023/04/26
- Re: [PATCH] before emit an error message, try to load the babel language, Ihor Radchenko, 2023/04/26
- Re: [PATCH] before emit an error message, try to load the babel language, lin Sun, 2023/04/26
- Re: [PATCH] before emit an error message, try to load the babel language, Ihor Radchenko, 2023/04/26
- Re: [PATCH] before emit an error message, try to load the babel language, Ihor Radchenko, 2023/04/26