bug#57065: 29.0.50; Double evaluation in `c-make-no-parens-syntax-table`

[Stefan Monnier]

Pushed to `master`, closing,


        Stefan


Stefan Monnier [2022-08-09 03:53:53] wrote:
> The patch below seems to be necessary to avoid a double-evaluation.
> This can be seen if you do something like
>
>     (c-lang-defconst c-make-mode-syntax-table my-lang #'my-fun)
>
> or
>
>     (c-lang-defconst c-make-mode-syntax-table my-lang (symbol-value 'my-fun))
>
> or
>
>     (c-lang-defconst c-make-mode-syntax-table my-lang
>       (lambda () ..))
>
> where you'll get errors like "void-variable `my-fun`" or "void-function
> `closure`.
>
>
>         Stefan
>
>
> diff --git a/lisp/progmodes/cc-langs.el b/lisp/progmodes/cc-langs.el
> index c5964165c8d..7826f38ca1a 100644
> --- a/lisp/progmodes/cc-langs.el
> +++ b/lisp/progmodes/cc-langs.el
> @@ -403,7 +403,7 @@ c-make-no-parens-syntax-table
>    t  (if (c-lang-const c-recognize-<>-arglists)
>       `(lambda ()
>       ;(if (c-lang-const c-recognize-<>-arglists)
> -     (let ((table (funcall ,(c-lang-const c-make-mode-syntax-table))))
> +     (let ((table (funcall ',(c-lang-const c-make-mode-syntax-table))))
>         (modify-syntax-entry ?\( "." table)
>         (modify-syntax-entry ?\) "." table)
>         (modify-syntax-entry ?\[ "." table)