;;; reproduce-bugs.el --- reproduce bugs in SXEmacs;
;; Copyright (C) 1997 Free Software Foundation, Inc.
;; Copyright (C) 1997 Sun Microsystems, Inc.
;; Keywords: bugs, crash, burn, die, croak, munge
;; This file is part of SXEmacs.
;; SXEmacs is free software: you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by the
;; Free Software Foundation, either version 3 of the License, or (at your
;; option) any later version.
;; SXEmacs is distributed in the hope that it will be
;; useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see .
;;; Synched up with: Not in FSF.
;;; Commentary:
;; Reproduce XEmacs bugs, so that they can get fixed.
;; Especially, make XEmacs crash.
;; You may need to use a debug version of XEmacs to reproduce some of these.
;; Several global keybindings are created, each of which exhibits a bug.
;; For XEmacs maintainers and other masochists.
;; It's a bad idea to rely on code in this file continuing to work in
;; the same way. :-)
;;; Code:
(defvar bug-hashtable (make-hashtable 10))
(defmacro defbug (bug-number &rest body)
`(puthash ,bug-number (lambda () ,@body) bug-hashtable))
(put 'defbug 'lisp-indent-function 'defun)
(defconst bug-buffer
(save-excursion
(set-buffer (get-buffer-create "*Bug*"))
(erase-buffer)
(current-buffer)))
;;;####autoload
(defun reproduce-bug (number)
"Reproduce XEmacs bugs, so that they can get fixed.
Especially, make XEmacs crash.
See reproduce-bugs.el for bug descriptions and bug numbers.
A debug version of XEmacs may be needed to reproduce some bugs."
(interactive "nBug Number: ")
(funcall (gethash number bug-hashtable)))
;;; Change this to your preferred key-binding
(global-set-key [(control ?Z)] 'reproduce-bug)
;;;; Bugs follow:
;;; ------------------------------------------------------------------
;;; Crash on trace-function
;;; Fatal error: assertion failed, file src/eval.c, line 1405, abort()
(defbug 1
(trace-function 'record-buffer bug-buffer)
(pop-to-buffer bug-buffer))
;;; ------------------------------------------------------------------
;;; Crashes with stack overflow
;;; Should give error via barf-if-buffer-read-only
;;; Fatal error: assertion failed, file src/eval.c, line 1874, abort()
;; This bug has been fixed. -sb
(defbug 2
(switch-to-buffer bug-buffer)
;; The following line should contain a number of eight-bit characters
(insert "²èÌÌËè¤Î°ÜÆ°¤Ï¤Ç¤¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤·¤¿¡£º£Å٤ϡ¢²èÌ̤ÎÃæ¤Ç¡¢ÆÃÄê¤Î¾ì")
(setq buffer-read-only t)
(ignore-errors
(encode-coding-region (point-min) (point-max) 'euc-japan))
(garbage-collect))
;;; ------------------------------------------------------------------
;;; Crashes in debug version only
;;; Fatal error: assertion failed, file src/objects.h, line 149,
;;; RECORD_TYPEP (_obj, lrecord_font_instance) || MARKED_RECORD_P (_obj)
(defbug 3
(let (glyph ext)
(make-face 'adobe-symbol-face)
(set-face-font
'adobe-symbol-face
"-adobe-symbol-medium-r-normal--*-140-*-*-p-*-adobe-fontspecific")
(setq glyph (make-glyph (list (vector 'string
:data (char-to-string ?\xD3)))))
(set-glyph-face glyph 'adobe-symbol-face)
(setq ext (make-extent 14 18))
(set-extent-property ext 'begin-glyph glyph)))
;;; ------------------------------------------------------------------
;;; (maybe?) crash koi8
;;; ACCL: Invalid command (c)
;;; With debugging on, crashes as follows:
;;; Fatal error: assertion failed, file src/lisp.h, line 1227, INTP (obj)
(defbug 5
;;(load "cyrillic")
;;(load "cyrillic-hooks")
(princ (decode-coding-string "\xe1" 'koi8)))
;;; ------------------------------------------------------------------
;;; Completely Uninterruptible hang in re-search-backward (Was: java-mode)
(defbug 6
(switch-to-buffer bug-buffer)
(insert "{
public static void main(String[] args) throws java.io.IOException
{
}
}
")
(goto-char (point-min))
(search-forward "{" nil nil 2)
(backward-char)
(re-search-backward
"^\\s(\\|\\(^[ \t]*\\(\\(\\(public\\|protected\\|static\\)\\s-+\\)*\\(\\(\\([[a-zA-Z][][_$.a-zA-Z0-9]*[][_$.a-zA-Z0-9]+\\|[[a-zA-Z]\\)\\s-*\\)\\s-+\\)\\)?\\(\\([[a-zA-Z][][_$.a-zA-Z0-9]*\\s-+\\)\\s-*\\)?\\([_a-zA-Z][^][ \t:;.,{}()=]*\\|\\([_$a-zA-Z][_$.a-zA-Z0-9]*\\)\\)\\s-*\\(([^);{}]*)\\)?\\([] \t]*\\)\\(\\s-*\\\\s-*\\(\\([_$a-zA-Z][_$.a-zA-Z0-9]*\\)[, \t\n\r\f]*\\)+\\)?\\s-*\\)\\s("))
;;; ------------------------------------------------------------------
;;; regexp crash
;; This doesn't crash for me. -sb
(defbug 7
(string-match "\\(\\s-\\|$\\)" "å"))
;;;; -------------------------------------------------------------------
;;;; Bugs below this line have been fixed.
;;;; Keep these for regression testing
;;;; -------------------------------------------------------------------
;;; ------------------------------------------------------------------
;;; Infinite recursion crash - Segmentation Fault
(defbug 4
(switch-to-buffer bug-buffer)
(insert "abcdefg")
(setq e (make-extent 1 4))
(set-extent-property e 'face 'bold)
(set-extent-property e 'duplicable t)
(set-extent-property e 'replicating t)
(insert (buffer-string))
(delete-region 8 9))
(defbug 5
(interactive)
(with-temp-buffer
(insert "abc")
(forward-char -1)
(subst-char-in-region 1 4 ?b ?\344)
(if (not (= (point) 3))
(message "Bug! point should equal 3 but is %d" (point)))))
;;; crash popup frames FIXED
;;(global-set-key
;; [(alt meta control f12)]
;; (lambda ()
;; (interactive)
;; (let ((f (selected-frame)))
;; (make-frame `(popup ,(selected-frame)))
;; (make-frame)
;; (sit-for 0)
;; (delete-frame f)
;; (save-buffers-kill-emacs))))
;;; crash on delete-frame-hook - FIXED!
;;(global-set-key
;; [(alt meta control f10)]
;; (lambda ()
;; (interactive)
;; (setq delete-frame-hook
;; (lambda (frame)
;; (select-frame frame)
;; (kill-buffer (window-buffer (frame-selected-window frame)))))))
;;; reproduce-bugs.el ends here