CEDET

On 04/20/2011 07:10 PM, Xaver Gerster wrote:
> Hi,
>
> I've to occasionally do some Python coding, however when using emacs with
> semantic/cedet in the init.el I get continuous error messages, once I start
> working on a *.py file:
>
> Idle Parse Error: "#<buffer test.py>  - Wrong type argument: stringp, nil"
> Idle Service Error semantic-idle-local-symbol-highlight-idle-function: "#<buffer
> test.py>  - Wrong type argument: stringp, nil"
> Idle Work Parse Neighboring Files: "#<buffer test.py>  - Wrong type argument:
> stringp, (lambda (f) t)"
>
> Any clues where this might come from and how to get rid of it?

I'm going to take a wild guess you have an old Emacs, where the 
'recentf' exclude list only takes file names, and not functions.  An 
emacs that old would have a range of other failure modes too.

I guess this based on (lambda (f) t) which only occurs as a recentf 
exclusion hack in semantic-find-file-noselect.

Eric

> >  with semantic/cedet in the init.el I get continuous error messages, once I  
>start

> > working on a *.py file:
> >
> > Idle Parse Error:  "#<buffer test.py>  -  Wrong type argument: stringp, nil"
> > Idle Service Error  semantic-idle-local-symbol-highlight-idle-function: 
>"#<buffer
> >  test.py>  - Wrong type argument: stringp, nil"
> > Idle Work Parse  Neighboring Files: "#<buffer test.py>  - Wrong type 
>argument:
> >  stringp, (lambda (f) t)"

> I'm going to take a wild guess you have an old  Emacs, where the 
> 'recentf' exclude list only takes file names, and not  functions.  An 
> emacs that old would have a range of other failure modes  too.

I have

>emacs --version
GNU Emacs 23.2.1

moreover I have 23.2.1's internal cedet replaced by cedet-1.0.
(Repos versions of cedet don't work for me because of ecb)

Xaver

> >> emacs  --version

> > GNU Emacs 23.2.1
> >
> > moreover I have removed  23.2.1's own version of cedet (by renaming its 
>folder)
> > and installed  cedet-1.0 (I'd be happy to use your's repos version, but that
> > conflicts  with ecb)

> Do you  have an old version of recentf somewhere on your path?

I checked that at least for my vendor's (SuSE 11.4) version of  recentf.elc 
*and* for a recentf.elc produced from 
http://perso.wanadoo.fr/david.ponce/downloads/recentf-1.23.zip, I both get these 
errors.

> We can find out in  more detail what the issue is by using: 
> M-x  semantic-debug-idle-function
> M-x  semantic-debug-idle-work-function

Forgive my ignorance, as to how to use these functions. What I did was to wait 
for the error to show up and then simply invoked them from the buffer. This 
produces the following output (from which I removed the byte-code, to easy my 
mailer). Anything else?

Does this give you any insight ?

Xaver


Debugger entered--Lisp error: (wrong-type-argument stringp nil)
  string-match(" " nil 0)
  split-string(nil " " t)
  semantic-ectag-parse-one-tag(#("ctags: Warning: Unsupported parameter 'v' for 
--python-kinds option" 0 67 (fontified nil)))
  semantic-ectag-parse-tags()
  semantic-ectag-parse-file-with-mode("/home/Gerster/tess.py" python-mode)
  semantic-ectag-parse-buffer()
  semantic-ectag-parse-region(1 20 nil nil nil)
  semantic-parse-region(1 20)
  semantic-fetch-tags()
  byte-code("blabla" [semantic-fetch-tags nil] 1)
  semantic-idle-scheduler-refresh-tags()
  byte-code("blabla" [inhibit-quit buffers safe others mode 
semantic-idle-scheduler-mode nil delq mapcar #[(b) "blabla" [b buffer-file-name] 
2] buffer-list 0 buffer-size semantic-idle-scheduler-refresh-tags err 
(semantic-idle-scheduler-refresh-tags) ((error ...)) input-pending-p 
accept-process-output throw parsing-mode-buffers 
(semantic-idle-scheduler-refresh-tags) ((error ...)) idle-queue 
working-temp-message "IDLE: execture service %s..." (funcall service) ((error 
...)) "IDLE: execture service %s...done" parsing-other-buffers 
semantic-debug-enabled semantic-lex-debug 
semantic-idle-scheduler-max-buffer-size major-mode debug-on-error b 
--cl-dolist-temp-- semantic-current-input-throw-symbol 
semantic-idle-scheduler-queue service --cl-dolist-temp-- 
semantic-idle-scheduler-verbose-flag --cl-dolist-temp--] 8)
  semantic-idle-core-handler()
  semantic-debug-idle-function()
  call-interactively(semantic-debug-idle-function t nil)
  execute-extended-command(nil)
  call-interactively(execute-extended-command nil nil)

Debugger entered--Lisp error: (wrong-type-argument stringp nil) string-match(" "
  nil 0) split-string(nil " " t) semantic-ectag-parse-one-tag(#("ctags: Warning:
  Unsupported parameter 'v' for --python-kinds option" 0 67 (fontified nil)))
  semantic-ectag-parse-tags()
  semantic-ectag-parse-file-with-mode("/home/Gerster/tess.py" python-mode)
  semantic-ectag-parse-buffer() semantic-ectag-parse-region(1 20 nil nil nil)
  semantic-parse-region(1 20) semantic-fetch-tags() byte-code("blabla" 
[semantic-fetch-tags nil] 1)
  semantic-idle-scheduler-refresh-tags()
  semantic-idle-work-for-one-buffer(#<buffer tess.py>)
  byte-code("blabla" [inhibit-quit 
  b buffers safe errbuf semantic-idle-scheduler-mode nil delq ma
  car #[(b) "blabla" [b buffer-file-name] 2] buffer-list 0 b
  ffer-size semantic-idle-work-for-one-buffer input-pending-p accept-process-ou
  put throw parsing-mode-buffers featurep semanticdb semanticdb-mi
  or-mode-p semanticdb-save-a
  l-db-idle semantic-idle-scheduler-work-parse-neighboring-files err 
  byte-code "blabla" [cb semantic-idle-scheduler-work-parse-neighbor
  ng-files] 1) ((error ...)) semantic-debug-enabled semantic
  lex-debug semantic-idle-scheduler-max-buffer-size b --cl-dol
  st-temp-- semantic-current-input-th
  ow-symbol semantic-idle-work-parse-neighboring-files-flag debug-on
  error] 8) semantic-idle-work-core-handler() semantic-debug-idle-work-
  unction() call-interactively(semantic-debug-idle-work-funct
  on t nil) execute-extended-command(nil) call-interactively(execute-extended-c
  mmand nil nil)