Re: Why does saving a buffer to a new file clear local variables?

[Jean Louis <bugs@gnu.support>]

* Michael Heerdegen via Users list for the GNU Emacs text editor <help-gnu-emacs@gnu.org> [2024-12-12 16:02]:
> Jean Louis <bugs@gnu.support> writes:
> 
> > > Are you sure that you don't just see the global binding of that
> > > variable?
> >
> > Unless you wish to reveal some new fact about it to me, I see that by
> > using `defvar-local' I can save file and variable `abc' still has
> > initially assigned value.
> >
> > And it has this description:
> >
> > abc’s value is 123
> >
> > Not documented as a variable.
> >
> >   Automatically becomes buffer-local when set.
> 
> That's the global binding.  A buffer local binding is reported as "local
> in buffer XYZ" - even when the local binding is the same as the global
> one.
> 
> `defvar-local' defines a global (aka "default") value.  Until you make an
> assignment in some buffer no buffer local bindings exist.

Okay, I am lost, will review it again when I need it, even though I use heavily permanent-local variables:

(defvar-local rcd-tabulated-original-entries nil
  "Original `tabulated-list-entries'.")
(put 'rcd-tabulated-original-entries 'permanent-local t)

But now when I use them, I just use them, I forgot pretty much about
it. It just works in the application.

-- 
Jean Louis