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bug#44858: [PATCH] Make byte-compiler warn about wide docstrings
From: |
Eli Zaretskii |
Subject: |
bug#44858: [PATCH] Make byte-compiler warn about wide docstrings |
Date: |
Fri, 11 Dec 2020 09:53:27 +0200 |
> From: Stefan Kangas <stefan@marxist.se>
> Date: Thu, 10 Dec 2020 14:59:16 -0600
> Cc: 44858@debbugs.gnu.org
>
> +** byte compiler
Please capitalize "Byte".
> +*** The byte-compiler now warns about too wide documentation strings.
> +By default, it will warn if a documentation string is wider than the
> +largest of 80 characters or 'fill-column'. See the new user
> +option 'byte-compile-docstring-max-column'.
The last sentence will be more useful if you make it more informative,
e.g.
This is controlled by the new user option
'byte-compile-docstring-max-column'.
> +(defvar byte-compile--wide-docstring-substitution-len 3
> + "Substitution width used in `byte-compile--wide-docstring-p'.")
The doc string should be more detailed. Let's at least explain what
hides behind "substitution", and say that the value is a heuristic.
> +(defcustom byte-compile-docstring-max-column 80
> + "Length that a doc string can be before the byte-compiler reports a
> warning."
I suggest "width", not "length", since you both use the former
elsewhere, and because "column" goes better with "width".
Also, "can be before" is not the clearest way of saying this. I
suggest
Recommended maximum width of doc string lines.
The byte-compiler will emit a warning for doc-string lines
wider than this. If `fill-column' has a larger value, it will
override this variable.
> +(defun byte-compile-docstring-length-warn (form)
> + "Warn if documentation string of FORM is too wide.
> +It is too wide if it is longer than the largest of `fill-column'
> +and `byte-compile-docstring-max-column'."
"It is too wide if it is longer" is inaccurate, I think, because we
actually test each _line_ of the doc string against the limit, while
the above seems to imply the overall length of the doc string (which
could be multi-line) is tested. So:
It is too wide if some of its lines is wider than the largest of...
> --- /dev/null
> +++ b/test/lisp/emacs-lisp/bytecomp-resources/warn-long-docstring-autoload.el
> @@ -0,0 +1,3 @@
> +;;; -*- lexical-binding: t -*-
> +(autoload 'foox "foo"
> +
> "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx")
I see that none of the tests use multi-line doc strings, is that
right? If so, I think it would be good to have at least a couple, one
where the first line is too wide, and another where some line other
than the first is too wide. Also, what about testing the fact that
fill-column overrides the value of the new option?
Thanks.
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, (continued)
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Eli Zaretskii, 2020/12/11
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Stefan Kangas, 2020/12/11
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Eli Zaretskii, 2020/12/19
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Stefan Kangas, 2020/12/19
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Eli Zaretskii, 2020/12/19
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Basil L. Contovounesios, 2020/12/28
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Lars Ingebrigtsen, 2020/12/28
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Lars Ingebrigtsen, 2020/12/19
- bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Stefan Kangas, 2020/12/19
bug#44858: [PATCH] Make byte-compiler warn about wide docstrings,
Eli Zaretskii <=
bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Lars Ingebrigtsen, 2020/12/11
bug#44858: [PATCH] Make byte-compiler warn about wide docstrings, Stefan Kangas, 2020/12/30