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102
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1 ;;; reproduce-bugs.el --- reproduce bugs in XEmacs;
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2
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3 ;; Copyright (C) 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 1997 Sun Microsystems, Inc.
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5
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6 ;; Keywords: bugs, crash, burn, die, croak, munge
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; This file is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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23 ;; 02111-1307, USA.
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24
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25 ;;; Synched up with: Not in FSF.
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26
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27 ;;; Commentary:
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28
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29 ;; Reproduce XEmacs bugs, so that they can get fixed.
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30 ;; Especially, make XEmacs crash.
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31 ;; You may need to use a debug version of XEmacs to reproduce some of these.
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32
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33 ;; Several global keybindings are created, each of which exhibits a bug.
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34
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35 ;; For XEmacs maintainers and other masochists.
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36
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37 ;; It's a bad idea to rely on code in this file continuing to work in
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38 ;; the same way. :-)
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39
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40 ;;; Code:
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41
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42 (defvar bug-hashtable (make-hashtable 10))
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43
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44 (defmacro defbug (bug-number &rest body)
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45 `(puthash ,bug-number (lambda () ,@body) bug-hashtable))
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46
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47 (put 'defbug 'lisp-indent-function 'defun)
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48
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49 (defconst bug-buffer
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50 (save-excursion
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51 (set-buffer (get-buffer-create "*Bug*"))
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52 (erase-buffer)
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53 (current-buffer)))
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54
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55 ;;;####autoload
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56 (defun reproduce-bug (number)
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57 "Reproduce XEmacs bugs, so that they can get fixed.
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58 Especially, make XEmacs crash.
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59 See reproduce-bugs.el for bug descriptions and bug numbers.
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60 A debug version of XEmacs may be needed to reproduce some bugs."
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61 (interactive "nBug Number: ")
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62 (funcall (gethash number bug-hashtable)))
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63
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64 ;;; Change this to your preferred key-binding
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65
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66 (global-set-key [(control ?Z)] 'reproduce-bug)
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67
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68 ;;;; Bugs follow:
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69
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70 ;;; ------------------------------------------------------------------
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71 ;;; Crash on trace-function
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72 ;;; Fatal error: assertion failed, file src/eval.c, line 1405, abort()
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73 (defbug 1
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74 (trace-function 'record-buffer bug-buffer)
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75 (pop-to-buffer bug-buffer))
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76
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77
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78 ;;; ------------------------------------------------------------------
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79 ;;; Crashes with stack overflow
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80 ;;; Should give error via barf-if-buffer-read-only
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81 ;;; Fatal error: assertion failed, file src/eval.c, line 1874, abort()
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82 ;; This bug has been fixed. -sb
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83 (defbug 2
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84 (switch-to-buffer bug-buffer)
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85 ;; The following line should contain a number of eight-bit characters
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86 (insert "²èÌÌËè¤Î°ÜÆ°¤Ï¤Ç¤¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤·¤¿¡£º£Å٤ϡ¢²èÌ̤ÎÃæ¤Ç¡¢ÆÃÄê¤Î¾ì")
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87 (setq buffer-read-only t)
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88 (ignore-errors
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89 (encode-coding-region (point-min) (point-max) 'euc-japan))
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90 (garbage-collect))
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91
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92
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93 ;;; ------------------------------------------------------------------
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94 ;;; Crashes in debug version only
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95 ;;; Fatal error: assertion failed, file src/objects.h, line 149,
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96 ;;; RECORD_TYPEP (_obj, lrecord_font_instance) || MARKED_RECORD_P (_obj)
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97 (defbug 3
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98 (let (glyph ext)
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99 (make-face 'adobe-symbol-face)
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100 (set-face-font
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101 'adobe-symbol-face
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102 "-adobe-symbol-medium-r-normal--*-140-*-*-p-*-adobe-fontspecific")
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103 (setq glyph (make-glyph (list (vector 'string
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104 :data (char-to-string ?\xD3)))))
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105 (set-glyph-face glyph 'adobe-symbol-face)
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106 (setq ext (make-extent 14 18))
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107 (set-extent-property ext 'begin-glyph glyph)))
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108
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109
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110 ;;; ------------------------------------------------------------------
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111 ;;; (maybe?) crash koi8
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112 ;;; ACCL: Invalid command (c)
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113 ;;; With debugging on, crashes as follows:
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114 ;;; Fatal error: assertion failed, file src/lisp.h, line 1227, INTP (obj)
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115 (defbug 5
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116 ;;(load "cyrillic")
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117 ;;(load "cyrillic-hooks")
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118 (princ (decode-coding-string "\xe1" 'koi8)))
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119
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120
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121 ;;; ------------------------------------------------------------------
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122 ;;; Completely Uninterruptible hang in re-search-backward (Was: java-mode)
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123 (defbug 6
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124 (switch-to-buffer bug-buffer)
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125 (insert "{
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126 public static void main(String[] args) throws java.io.IOException
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127 {
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128 }
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129 }
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130 ")
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131 (goto-char (point-min))
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132 (search-forward "{" nil nil 2)
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133 (backward-char)
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134 (re-search-backward
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135 "^\\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][_$.a-zA-Z0-9]*\\)\\)\\s-*\\(([^);{}]*)\\)?\\([] \t]*\\)\\(\\s-*\\<throws\\>\\s-*\\(\\([_$a-zA-Z][_$.a-zA-Z0-9]*\\)[, \t\n\r\f]*\\)+\\)?\\s-*\\)\\s("))
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136
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137
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138 ;;; ------------------------------------------------------------------
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139 ;;; regexp crash
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140 ;; This doesn't crash for me. -sb
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141 (defbug 7
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142 (string-match "\\(\\s-\\|$\\)" "å"))
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143
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144
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145 ;;;; -------------------------------------------------------------------
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146 ;;;; Bugs below this line have been fixed.
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147 ;;;; Keep these for regression testing
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148 ;;;; -------------------------------------------------------------------
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149
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150
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151 ;;; ------------------------------------------------------------------
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152 ;;; Infinite recursion crash - Segmentation Fault
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153 (defbug 4
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154 (switch-to-buffer bug-buffer)
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155 (insert "abcdefg")
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156 (setq e (make-extent 1 4))
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157 (set-extent-property e 'face 'bold)
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158 (set-extent-property e 'duplicable t)
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159 (set-extent-property e 'replicating t)
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160 (insert (buffer-string))
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161 (delete-region 8 9))
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162
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203
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163 (defbug 5
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164 (interactive)
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165 (with-temp-buffer
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166 (insert "abc")
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167 (forward-char -1)
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168 (subst-char-in-region 1 4 ?b ?\344)
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169 (if (not (= (point) 3))
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170 (message "Bug! point should equal 3 but is %d" (point)))))
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102
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171
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172 ;;; crash popup frames FIXED
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173 ;;(global-set-key
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174 ;; [(alt meta control f12)]
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175 ;; (lambda ()
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176 ;; (interactive)
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177 ;; (let ((f (selected-frame)))
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178 ;; (make-frame `(popup ,(selected-frame)))
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179 ;; (make-frame)
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180 ;; (sit-for 0)
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181 ;; (delete-frame f)
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182 ;; (save-buffers-kill-emacs))))
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183
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184 ;;; crash on delete-frame-hook - FIXED!
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185 ;;(global-set-key
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186 ;; [(alt meta control f10)]
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187 ;; (lambda ()
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188 ;; (interactive)
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189 ;; (setq delete-frame-hook
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190 ;; (lambda (frame)
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191 ;; (select-frame frame)
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192 ;; (kill-buffer (window-buffer (frame-selected-window frame)))))))
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193
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194 ;;; reproduce-bugs.el ends here
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