CEDET

Hi cedet-devel,

Since an unknown number of versions of cedet i suffer from a strange bug 
that i was able to isolate but not reproduce on simple case yesterday.

First i use last emacs trunk and last cedet from cvs, here is an extract 
of how i enable the modules i want to use in cedet.

; minimal + custom (only activate what we need and use)
(semantic-load-enable-minimum-features)
(global-semantic-idle-scheduler-mode 1)
(global-semantic-idle-summary-mode 1)
(global-semantic-idle-tag-highlight-mode 1)
(global-senator-minor-mode 1)
(global-semantic-decoration-mode 1)

The bug is the following:

Sometimes, When i open some .c or .h file semantic throws the following 
error, it also happens when jumping to the definition of a symbol using 
gtags.el

"semantic-decoration-on-includes-highlight: Wrong type argument: arrayp, 
nil"

If i enable debug-on-error here is what i have when trying to switch 
from a .c file to a .h file using sourcepair (partially anonymized):

Debugger entered--Lisp error: (wrong-type-argument arrayp nil)
   semantic-decoration-on-includes-highlight-default(("foo.h" include 
nil (dependency-file "/somepath/foo.h") nil))
   semantic-decoration-on-includes-highlight(("foo.h" include nil 
(dependency-file "/somepath/foo.h") nil))
   semantic-decorate-add-decorations((("_XX_XXX_H" variable 
(:constant-flag t) nil nil) ("foo.h" include nil (dependency-file 
"/somepath/foo.h") nil) ("func1" function (:prototype-flag t :pointer 1 
:arguments ... :type "char") nil nil)))
   semantic-decoration-mode-setup()
   semantic-decoration-mode()
   run-hooks(semantic-init-hook)
   semantic-new-buffer-fcn()
   run-hooks(mode-local-init-hook)
   #[nil "\300 \210\301\302!\207" [activate-mode-local-bindings 
run-hooks mode-local-init-hook] 2]()
   mode-local-map-file-buffers(#[nil "\300 \210\301\302!\207" 
[activate-mode-local-bindings run-hooks mode-local-init-hook] 2] 
#[nil "	=?\207" [mode-local--init-mode major-mode] 2] (#<buffer foo2.h>))
   mode-local-post-major-mode-change()
   run-hooks(find-file-hook)
   after-find-file(nil t)
   find-file-noselect-1(#<buffer foo2.h> "/somepath/foo2.h" nil nil 
"/somepath/foo2.h" (10976667 94))
   find-file-noselect("/somepath/foo2.h" nil nil nil)
   find-file("/somepath/foo2.h")
   byte-code("...." [temp search-path possible-filenames 
matching-filename path-to-check sourcepair-analyze-filename buffer-name 
0 message "%s is not a recognized source or header file (consider 
updating sourcepair-source-extensions or sourcepair-header-extensions)" 
nil 3 -2 "/*" sourcepair-find-one-of t throw found-matching-file 
find-file "No matching file for " " (consider updating 
sourcepair-source-path, sourcepair-header-path)"] 5)
   sourcepair-load()
   call-interactively(sourcepair-load nil nil)

Here is another trace if i just ido-open-file:
Debugger entered--Lisp error: (wrong-type-argument arrayp nil)
   semantic-decoration-on-includes-highlight-default(("foo.h" include 
nil (dependency-file "/somepath/foo.h") nil))
   semantic-decoration-on-includes-highlight(("foo.h" include nil 
(dependency-file "/somepath/foo.h") nil))
   semantic-decorate-add-decorations((("_XX_XXX_H" variable 
(:constant-flag t) nil nil) ("foo.h" include nil (dependency-file 
"/somepath/foo.h") nil) ("func1" function (:prototype-flag t :pointer 1 
:arguments ... :type "char") nil nil)))
   semantic-decoration-mode-setup()
   semantic-decoration-mode()
   run-hooks(semantic-init-hook)
   semantic-new-buffer-fcn()
   run-hooks(mode-local-init-hook)
   #[nil "\300 \210\301\302!\207" [activate-mode-local-bindings 
run-hooks mode-local-init-hook] 2]()
   mode-local-map-file-buffers(#[nil "\300 \210\301\302!\207" 
[activate-mode-local-bindings run-hooks mode-local-init-hook] 2] 
#[nil "	=?\207" [mode-local--init-mode major-mode] 2] (#<buffer foo2.h>))
   mode-local-post-major-mode-change()
   run-hooks(find-file-hook)
   after-find-file(nil t)
   find-file-noselect-1(#<buffer foo2.h> "/somepath/foo2.h" nil nil 
"/somepath/foo2.h" (10976667 94))
   find-file-noselect("/somepath/foo2.h" nil nil)
   ido-file-internal(raise-frame)
   ido-find-file()
   call-interactively(ido-find-file nil nil)

The issue vanish if i disable (global-semantic-decoration-mode 1) but i 
lose the overline decoration on function declaration which i find fancy 
and usefull, so to keep that part and disable the decoration on include 
i am forced to remove the ;;###autoload in semantinc-decorate-include.el.

If you need any other information do not hesitate to ask.

Damien
-- 
Damien Deville
R&D engineer
damien.deville@...
http://www.netasq.com

NETASQ - We secure IT

Hi,

Answer below in your code:

seahalo@... wrote:
> Hi, cedet,
> I find my auto completion doesn't work well in my Emacs.
> 
> My code is
> 
> #include "stdafx.h"
> #include <stdio.h>
> #include "Hello.h"
> 
> 
> int _tmain(int argc, _TCHAR* argv[])
> {
> Helllo* heli(NULL);
     ^^^

You have a typo here.  If I fix it to match the spelling in my Hello.h, 
then it works fine.

> heli = new Hello();
> heli->Sa
> 
> return 0;
> }
> 
> Hello is a class defined in "Hello.h".
> 
> When I type "heli->S", then type "C-c ?". The error message comes out.
> 
> *Message*
> 
> C++ mode hook
> Mark set [3 times]
> semantic-analyze-possible-completions-default: Cannot find types for 
> `Helllo* heli (NULL)'
> Cannot find types for `Helllo* heli (NULL)'
                            ^^^

Also note typo here.

Eric