Re: add-to-list on lexical vars (Re: Error on loading polyglossia.el)

[Tassilo Horn]

Ikumi Keita <ikumi@ikumi.que.jp> writes:

> OK, the attached revised patch includes a new test.

Looks good.  Is there a problem with just adding a

  (defvar TeX-test-dummy-alist nil)

for the test variable and then declaring lexical-binding t for the file?
Usually, the test are only run thru make, and then there's no problem
with declaring new variables.

>>> and `TeX-add-to-alist' runs without error for me, even without the
>>> patch.
>
>> Not for me.  Just eval in *scratch* which has lexical-binding at least
>> in my emacs master checkout:
>> (let ((alist nil))
>>   (TeX-add-to-alist 'alist '((a 1)))
>>   alist) ;; <== C-j here
>
> Well, that wouldn't work even after my patch is applied.

No, it's expected that it doesn't work in the same way as it doesn't
work for `add-to-list'.  As you say, it's only useful for special
variables.

Bye,
Tassilo