CEDET

Hi,

The problem is that the mode hook is used to setup parsing information, 
and then after that, the parser setup is done in the mode-local-init-hook.

Semantic adds a 'semantic-init-hook' which you can use for when a buffer 
is setup for parsing.  Thus:

(add-hook 'semantic-init-hook
   (lambda () (when (eq major-mode 'my-mode)
                (semantic-idle-summary-mode)))))

should do the trick, where my-mode is java-mode or jdee-mode or some-such.

Eric

Joel Borggren-Franck wrote:
> Hi
> 
> I'm trying to activate semantic-idle-summary-mode automatically when
> in java-major-mode (and only then). So far I have tried countless
> permutations of add-hook (setq vs function, append vs prepend):
> 
> ;; ;; Activate semantic-idle-summary-mode for Java
> ;; (defun my-java-mode-hook ()
> ;;   (semantic-idle-summary-mode 1))
> 
> ;; (add-hook 'java-mode-hook 'my-java-mode-hook t)
> 
> But all I get is this:
> 
> File mode specification error: (error "Buffer Test.java was not set up
> for parsing")
> 
> The funny thing is that I have no problem activating the mode manually
> with M-x semantic-idle-summary-mode.
> 
> My semantic setup is as follows (and I'm running on cedet-1.0pre6):
> 
> ;; CEDET/semantic
> (load-file "~/lib/elisp/cedet/common/cedet.el")
> (semantic-load-enable-minimum-features)
> (global-semanticdb-minor-mode 0)
> (setq semanticdb-default-save-directory "~/semantic")
> (require 'semantic-gcc)
> 
> ;; Add tags found by sematic to imenu
> (add-hook 'semantic-init-hooks
>          (lambda () (imenu-add-to-menubar "TAGS")))
> 
> Any suggestions?
> 
> Best Regards
> Joel
> 
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On Wed, Dec 2, 2009 at 6:42 PM, Eric M. Ludlam <eric@...> wrote:
>
> The problem is that the mode hook is used to setup parsing information, and
> then after that, the parser setup is done in the mode-local-init-hook.
>
> Semantic adds a 'semantic-init-hook' which you can use for when a buffer is
> setup for parsing.  Thus:
>
> (add-hook 'semantic-init-hook
>  (lambda () (when (eq major-mode 'my-mode)
>               (semantic-idle-summary-mode)))))
>
> should do the trick, where my-mode is java-mode or jdee-mode or some-such.
>

Thanks for the fast reply. Unfortunately I'm having trouble making this work.

To rule out interference from my other emacs stuff I tried this:

Start emacs with --no-init and eval (using eval-region):

;; CEDET/semantic
(load-file "~/lib/elisp/cedet/common/cedet.el")
(semantic-load-enable-minimum-features)
(global-semanticdb-minor-mode 0)
(setq semanticdb-default-save-directory "~/semantic")
(require 'semantic-gcc)

;; use semantic for Java
(add-hook 'semantic-init-hook
 (lambda () (when (eq major-mode 'java-mode)
              (semantic-idle-summary-mode))))

After that I visit a java file and it loads
semantic-idle-scheduler-mode but not semantic-idle-summary-mode.

I can activate the mode manually as before.

What am I doing wrong?

Best Regards
Joel

On Wed, Dec 2, 2009 at 8:41 PM, Joel Borggren-Franck <jbf@...> wrote:
>
> ;; use semantic for Java
> (add-hook 'semantic-init-hook
                                                  ^^^

In case someone else stumbles upon this, its semantic-init-hooks (with an s).

This solved the problem.

Thanks for the help!

Best Regards
Joel