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

[Stefan Monnier]

>> 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)?

Sounds about right.

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

I like mine pink with grey octagons.


        Stefan