1 ;;; riece-debug.el --- debug support
2 ;; Copyright (C) 1998-2005 Daiki Ueno
4 ;; Author: Daiki Ueno <ueno@unixuser.org>
6 ;; Keywords: IRC, riece
8 ;; This file is part of Riece.
10 ;; This program is free software; you can redistribute it and/or modify
11 ;; it under the terms of the GNU General Public License as published by
12 ;; the Free Software Foundation; either version 2, or (at your option)
15 ;; This program is distributed in the hope that it will be useful,
16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;; GNU General Public License for more details.
20 ;; You should have received a copy of the GNU General Public License
21 ;; along with GNU Emacs; see the file COPYING. If not, write to the
22 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23 ;; Boston, MA 02111-1307, USA.
27 (require 'riece-globals)
29 (defun riece-debug-reset-standard-output ()
30 "Reset `riece-temp-buffer' to be used as `standard-output'."
32 (set-buffer riece-temp-buffer)
36 (defmacro riece-debug-with-backtrace (&rest body)
37 "Execute BODY and send a backtrace to `riece-temp-buffer'."
40 (riece-debug-reset-standard-output)
41 (let ((standard-output riece-temp-buffer))
44 (put 'riece-debug-with-backtrace 'lisp-indent-function 0)
45 (put 'riece-debug-with-backtrace 'edebug-form-spec '(form body))
47 (defmacro riece-ignore-errors (location &rest body)
48 "Execute BODY; if an error occurs, return nil.
49 Otherwise, return result of last FORM.
50 If `riece-debug' is non-nil and an error occurred, it sends a
51 backtrace to standard-output."
52 `(condition-case error
54 (riece-debug-with-backtrace ,@body)
59 (set-buffer riece-temp-buffer)
60 (goto-char (point-min))
61 (if (re-search-forward "^ signal(" nil t)
62 (delete-region (point-min) (match-beginning 0)))
63 (message "Error in `%s': %S\n%s" ,location error (buffer-string))))
66 (put 'riece-ignore-errors 'lisp-indent-function 1)
67 (put 'riece-ignore-errors 'edebug-form-spec '(form body))
69 (defun riece-funcall-ignore-errors (location function &rest args)
70 "Call FUNCTION with ARGS; if an error occurs, return nil.
71 Otherwise, return result of the function.
72 If `riece-debug' is non-nil and an error occurred, it sends a
73 backtrace to standard-output."
74 (riece-ignore-errors location
75 (apply function args)))
77 (provide 'riece-debug)
79 ;;; riece-debug.el ends here