[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: What's wrong with value?
From: |
David Kastrup |
Subject: |
Re: What's wrong with value? |
Date: |
06 Feb 2003 19:28:27 +0100 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50 |
Jesper Harder <harder@myrealbox.com> writes:
> Pascal Bourguignon <pjb@informatimago.com> writes:
>
> > What's happening with this symbol:
> >
> > (setq value :toto) ;; C-x C-e, :toto appears in Mini-buffer.
> > (show value) ;; But value has not been assigned!
> > ==> nil
> >
> > Note that while 'value is a method defined with eieio
>
> I don't think eieio is the culprit.
>
> Try it with a clean 'emacs -q --no-site-file' -- the same thing happens.
> Very mysterious!
(defun eval-last-sexp (eval-last-sexp-arg-internal)
"Evaluate sexp before point; print value in minibuffer.
Interactively, with prefix argument, print output into current buffer."
(interactive "P")
(if (null eval-expression-debug-on-error)
(eval-last-sexp-1 eval-last-sexp-arg-internal)
(let ((old-value (make-symbol "t")) new-value value)
(let ((debug-on-error old-value))
(setq value (eval-last-sexp-1 eval-last-sexp-arg-internal))
(setq new-value debug-on-error))
(unless (eq old-value new-value)
(setq debug-on-error new-value))
value)))
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum