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bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc
From: |
Alex Branham |
Subject: |
bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc |
Date: |
Fri, 26 Mar 2021 15:08:59 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
On Fri 26 Mar 2021 at 18:50, João Távora <joaotavora@gmail.com> wrote:
> Alex, exactly under what circunstances do you see that "There is no
> ElDoc support in this buffer"? In what buffer, doing what? I
> appreciate that you have investigated the implementation, but I need to
> be able to understand -- and potentially reproduce -- the problem
> exactly as it happened to you, so please provide as clear a recipe as
> possible, perhaps starting with "downloaded Emacs 27.1, then cleared my
> ELPA directory, ..., installed Eglot from xyz, ..., ".
Sure thing (though note I'm not the person who originally ran into the
bug, just was able to reproduce). From a clean install of 27.1 (no init
file, no packages), you should be able to reproduce by:
1. Add MELPA to package-archives
2. Install ESS
3. Update eldoc (potentially by installing eglot)
4. Restart Emacs
5. (require 'eglot)
6. Open an R file (eg ~/test.R)
7. At this point, eldoc-documentation-function will be #'ignore so eg
M-x eldoc-mode will show "There is no ElDoc support in this buffer".
That's because ESS sets up eldoc in R buffers like so:
(if (boundp 'eldoc-documentation-functions)
(add-hook 'eldoc-documentation-functions #'ess-r-eldoc-function nil t)
(add-function :before-until (local 'eldoc-documentation-function)
#'ess-r-eldoc-function))
so we don't touch eldoc-documentation-function in newer eldoc versions
where it is supposed to be a user-facing customization.
> Meanwhile (but not excluding the earlier valuable exercise), can you
> show the output of:
>
> C-h v eldoc-documentation-function RET
> C-h v eldoc-documentation-strategy RET
Unfortunately I can't at the moment but from memory
eldoc-documentation-strategy was an obsolete alias for
eldoc-documentation-function and the value was the function ignore.
Hope that helps.
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, Alex Branham, 2021/03/25
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, Basil L. Contovounesios, 2021/03/26
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, João Távora, 2021/03/26
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc,
Alex Branham <=
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, João Távora, 2021/03/26
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, Alex Branham, 2021/03/26
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, João Távora, 2021/03/26
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, Alex Branham, 2021/03/27
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, João Távora, 2021/03/27
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, Alex Branham, 2021/03/28
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, João Távora, 2021/03/28
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, Alex Branham, 2021/03/28
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, João Távora, 2021/03/28
- bug#47388: 27.1; eldoc-documentation-function is ignore in updated eldoc, Stefan Monnier, 2021/03/28