Re: Has something changed in the autoload mechanism in Emacs 29?

[Pierre Rouleau]

On Fri, Jul 26, 2024 at 11:59 AM Michael Heerdegen via Users list for the
GNU Emacs text editor <help-gnu-emacs@gnu.org> wrote:

> Pierre Rouleau <prouleau001@gmail.com> writes:
>
> > > What's the result of evaluating (symbol-function
> 'pel-generic-find-file)
> > > in the situation where the describe command reports the wrong location?
> > >
> > > The result is:
> >
> > #[513 "\300
> >
> >
> >
> \3011^\^@\211\203^P^@\211^BB\202^Q^@^A\302^A!\303^E^B\"\266\2020\207\210\304\207"
> >  [pel-ffind-project-directory (user-error) delete-dups pel-ffind nil] 8
> >  ("/Users/roup/my/dv/elisp/pel/pel-ffind.elc" . 3424)]
>
> > The path /Users/roup/my/dv/elisp/pel/pel-ffind.elc is correct.
>
> But isn't this a byte-code function and not an autoload function?  With
> a reference to the source of the docstring (when using
> `byte-compile-dynamic-docstrings')?
>
>
> > Yet the *Help* buffer created by (describe-symbol
> 'pel-generic-find-file) ,
> > which returns 1,
> > shows the function being defined in pel_keys.el instead of the
> pel-ffind.el,
> > followed by the proper docstring.
> >
> > pel-generic-find-file is an autoloaded byte-compiled Lisp function in
> > ‘pel_keys.el’.
>
> Maybe looking at `load-history' can reveal why this file is mentioned.
>
>
> > Was there not a change in Emacs 28?  I'll have to go back and read the
> > release notes.
>
> Ok, yes, there had been the switch from autoloads.el to loaddefs-gen.el
> with Emacs 29.
>
>
> > If there's nothing obvious as to what changed in the auto loading
> > mechanism then I'll need to test more on the affected platform and
> > test on others.
> >
> > I should probably look at the code that describe-symbol and see
> > where it gets the source file associated with the symbol.
>
> When `find-lisp-object-file-name' is involved, I would try to edebug
> that, as a promising starting point.
>
> Thanks for the info Michael,  I will try these once I get a little bit of
time and will report the outcome.

I'm a little swamped by other things at the moment.


-- 
/Pierre