bug#47843: 28.0.50; Setting enable-local-variables to nil *appears* to inhibit lexical-binding (but doesn't)

[Lars Ingebrigtsen]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

> Indeed, an exception would be welcome for that var, otherwise there will
> be bad surprises.  We could probably have a variable holding a list of
> vars that always obey file-local settings.

Poking around for a couple of minutes, would the right way to implement
this be to always call `hack-local-variables' in `set-auto-mode' here?

    ;; hack-local-variables checks local-enable-local-variables etc, but
    ;; we might as well be explicit here for the sake of clarity.
    (and (not done)
         enable-local-variables
         local-enable-local-variables
         try-locals
         (setq mode (hack-local-variables t))

But then filter out all variables except the ones in this new list in
`hack-local-variables-filter' (if `enable-local-variables' is nil)?

The new list could be called...  uhm...
`permanently-enabled-local-variables'?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no