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 (defvar riece-debug-standard-output
28 (make-string 4096 ?\x0))
30 (defvar riece-debug-standard-output-index 0)
32 (defun riece-debug-standard-output (character)
33 (let ((length (length riece-debug-standard-output)))
34 (if (= riece-debug-standard-output-index length)
35 (setq riece-debug-standard-output
36 (concat riece-debug-standard-output
37 (make-string length ?\x0))))
38 (aset riece-debug-standard-output
39 riece-debug-standard-output-index
41 (setq riece-debug-standard-output-index
42 (1+ riece-debug-standard-output-index))))
44 (defmacro riece-debug-with-backtrace (&rest body)
47 (setq riece-debug-standard-output-index 0)
48 (let ((standard-output #'riece-debug-standard-output))
51 (put 'riece-debug-with-backtrace 'lisp-indent-function 0)
52 (put 'riece-debug-with-backtrace 'edebug-form-spec '(form body))
54 (defmacro riece-ignore-errors (location &rest body)
55 `(condition-case error
57 (riece-debug-with-backtrace ,@body)
61 (let ((backtrace (substring riece-debug-standard-output
62 0 riece-debug-standard-output-index)))
63 (if (string-match "^ signal(" backtrace)
64 (setq backtrace (substring backtrace 0 (match-beginning 0))))
65 (message "Error in `%s': %S\n%s" ,location error backtrace)))
68 (put 'riece-ignore-errors 'lisp-indent-function 1)
69 (put 'riece-ignore-errors 'edebug-form-spec '(form body))
71 (provide 'riece-debug)
73 ;;; riece-debug.el ends here