[ESS] Repost: problems setting ess-source-directory

[William McCoy]

I have a bit more information on this problem.  When I use 
debug-on-error, I get the following backtrace:

Debugger entered--Lisp error: (wrong-type-argument sequencep 
ess-r-customize-alist)
ess-setq-vars-local(ess-r-customize-alist)
ess-dump-object-into-edit-buffer("LQ")
   funcall-interactively(ess-dump-object-into-edit-buffer "LQ")
   command-execute(ess-dump-object-into-edit-buffer)


which I don't think helps too much.  However when I inspect the variable 
ess-source-directory during my R seesion, I see this:


ess-source-directory is a variable defined in ‘ess-custom.el’.

Its value is (lambda nil (concat ess-directory "Src/"))
Original value was "/tmp/"

It seems odd that the value has changed to (lambda nil ...
instead of (lambda () ...

Doesn't the lambda() function need the () in order to be recognized as a 
function?
Has anyone on the list been able to get this expression to work or is it 
a real bug in ESS?

Thanks for any time you can spend helping me with this.

Bill


On 2/10/25 4:46 PM, William McCoy via ESS-help wrote:
> I have had the following lines in my emacs init.el file for years:
>
> (setq ess-source-directory
>       (lambda ()
>          (concat ess-directory "src/")))
>
> This had been taken from ESS documentation from long ago and still 
> appears in the current documentation.  But now it causes a problem.  
> ESS loads without problem in emacs.  However, when I attempt to dump 
> and edit an existing function (using C-c C-e C-d) while in a running R 
> process buffer, I get the following message in the mini-buffer and the 
> dump doesn't occur:
>
> Wrong type argument: sequencep, ess-r-customize-alist
>
> This is frustrating and I've had to resort to dumping files in a 
> fixed-name sub-directory under my home directory.
>
> ESS version:  20250110.1437 (25.1.0)
> Emacs version:  29.4
> R version:  4.4.2 (2024-10-31)
> Fedora 41 Workstation
>
> Thanks for considering this issue,
> Bill McCoy
>
> Note:  I have resent this post because my long-time subscription to 
> this mailing list was under a different email address that my 
> institution has changed.  I have since re-subscribed to the mailing 
> list with my new email address.
>
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