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1 /* Debugging aids -- togglable assertions.
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2 Copyright (C) 1994 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Not in FSF. */
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22
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23 /* This file has been Mule-ized. */
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24
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25 /* Written by Chuck Thompson */
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26
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27 #include <config.h>
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28 #include "lisp.h"
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29 #include "debug.h"
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30 #include "bytecode.h"
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31
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32 /*
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33 * To add a new debug class:
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34 * 1. Add a symbol definition for it here, if one doesn't exist
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35 * elsewhere. If you add it here, make sure to add a defsymbol
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36 * line for it in syms_of_debug.
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37 * 2. Add an extern definition for the symbol to debug.h.
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38 * 3. Add entries for the class to struct debug_classes in debug.h.
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39 * 4. Add a FROB line for it in xemacs_debug_loop.
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40 */
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41
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412
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42 Lisp_Object Qredisplay, Qbuffers, Qfaces;
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43 Lisp_Object Qwindows, Qframes, Qdevices;
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0
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44
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45 struct debug_classes active_debug_classes;
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46
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47 enum debug_loop
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48 {
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412
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49 ADD,
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50 DELETE,
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51 LIST,
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52 ACTIVE,
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53 INIT,
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54 VALIDATE,
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55 TYPE,
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56 SETTYPE
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0
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57 };
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58
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59 static Lisp_Object
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60 xemacs_debug_loop (enum debug_loop op, Lisp_Object class, Lisp_Object type)
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61 {
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412
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62 int flag = (op == ADD) ? 1 : 0;
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0
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63 Lisp_Object retval = Qnil;
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64
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380
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65 #define FROB(item) \
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412
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66 if (op == LIST || op == ACTIVE || op == INIT || EQ (class, Q##item)) \
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0
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67 { \
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412
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68 if (op == ADD || op == DELETE || op == INIT) \
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69 active_debug_classes.item = flag; \
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412
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70 else if (op == LIST \
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71 || (op == ACTIVE && active_debug_classes.item)) \
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72 retval = Fcons (Q##item, retval); \
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412
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73 else if (op == VALIDATE) \
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74 return Qt; \
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412
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75 else if (op == SETTYPE) \
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76 active_debug_classes.types_of_##item = XINT (type); \
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412
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77 else if (op == TYPE) \
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380
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78 retval = make_int (active_debug_classes.types_of_##item); \
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412
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79 if (op == INIT) active_debug_classes.types_of_##item = VALBITS; \
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0
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80 }
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81
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82 FROB (redisplay);
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83 FROB (buffers);
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84 FROB (extents);
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85 FROB (faces);
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86 FROB (windows);
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87 FROB (frames);
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88 FROB (devices);
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89 FROB (byte_code);
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185
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90
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91 return retval;
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92 #undef FROB
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93 }
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94
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20
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95 DEFUN ("add-debug-class-to-check", Fadd_debug_class_to_check, 1, 1, 0, /*
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96 Add a debug class to the list of active classes.
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20
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97 */
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98 (class))
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99 {
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412
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100 if (NILP (xemacs_debug_loop (VALIDATE, class, Qnil)))
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101 error ("No such debug class exists");
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102 else
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412
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103 xemacs_debug_loop (ADD, class, Qnil);
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104
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412
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105 return (xemacs_debug_loop (ACTIVE, Qnil, Qnil));
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106 }
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107
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108 DEFUN ("delete-debug-class-to-check", Fdelete_debug_class_to_check, 1, 1, 0, /*
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109 Delete a debug class from the list of active classes.
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110 */
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111 (class))
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112 {
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412
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113 if (NILP (xemacs_debug_loop (VALIDATE, class, Qnil)))
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114 error ("No such debug class exists");
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115 else
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412
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116 xemacs_debug_loop (DELETE, class, Qnil);
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0
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117
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412
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118 return (xemacs_debug_loop (ACTIVE, Qnil, Qnil));
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119 }
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120
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121 DEFUN ("debug-classes-being-checked", Fdebug_classes_being_checked, 0, 0, 0, /*
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122 Return a list of active debug classes.
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123 */
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124 ())
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125 {
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126 return (xemacs_debug_loop (ACTIVE, Qnil, Qnil));
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127 }
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128
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129 DEFUN ("debug-classes-list", Fdebug_classes_list, 0, 0, 0, /*
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130 Return a list of all defined debug classes.
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131 */
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132 ())
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133 {
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134 return (xemacs_debug_loop (LIST, Qnil, Qnil));
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135 }
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136
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137 DEFUN ("set-debug-classes-to-check", Fset_debug_classes_to_check, 1, 1, 0, /*
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138 Set which classes of debug statements should be active.
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139 CLASSES should be a list of debug classes.
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140 */
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141 (classes))
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142 {
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143 Lisp_Object rest;
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144
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145 CHECK_LIST (classes);
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146
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147 /* Make sure all objects in the list are valid. If anyone is not
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148 valid, reject the entire list without doing anything. */
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149 LIST_LOOP (rest, classes )
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150 {
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412
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151 if (NILP (xemacs_debug_loop (VALIDATE, XCAR (rest), Qnil)))
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152 error ("Invalid object in class list");
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153 }
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154
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155 LIST_LOOP (rest, classes)
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156 Fadd_debug_class_to_check (XCAR (rest));
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157
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412
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158 return (xemacs_debug_loop (ACTIVE, Qnil, Qnil));
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159 }
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160
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161 DEFUN ("set-debug-class-types-to-check", Fset_debug_class_types_to_check, 2, 2, 0, /*
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162 For the given debug CLASS, set which TYPES are actually interesting.
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163 TYPES should be an integer representing the or'd value of all desired types.
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164 Lists of defined types and their values are located in the source code.
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165 */
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166 (class, type))
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167 {
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168 CHECK_INT (type);
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169 if (NILP (xemacs_debug_loop (VALIDATE, class, Qnil)))
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170 error ("Invalid debug class");
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171
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412
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172 xemacs_debug_loop (SETTYPE, class, type);
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173
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174 return (xemacs_debug_loop (TYPE, class, Qnil));
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175 }
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176
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177 DEFUN ("debug-types-being-checked", Fdebug_types_being_checked, 1, 1, 0, /*
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178 For the given CLASS, return the associated type value.
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179 */
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180 (class))
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181 {
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182 if (NILP (xemacs_debug_loop (VALIDATE, class, Qnil)))
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183 error ("Invalid debug class");
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184
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185 return (xemacs_debug_loop (TYPE, class, Qnil));
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186 }
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187
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188 void
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189 syms_of_debug (void)
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190 {
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191 defsymbol (&Qredisplay, "redisplay");
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192 defsymbol (&Qbuffers, "buffers");
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193 defsymbol (&Qfaces, "faces");
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194 defsymbol (&Qwindows, "windows");
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195 defsymbol (&Qframes, "frames");
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196 defsymbol (&Qdevices, "devices");
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412
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197 /* defsymbol (&Qbyte_code, "byte-code"); in bytecode.c */
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198
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199 DEFSUBR (Fadd_debug_class_to_check);
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200 DEFSUBR (Fdelete_debug_class_to_check);
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201 DEFSUBR (Fdebug_classes_being_checked);
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202 DEFSUBR (Fdebug_classes_list);
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203 DEFSUBR (Fset_debug_classes_to_check);
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204 DEFSUBR (Fset_debug_class_types_to_check);
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205 DEFSUBR (Fdebug_types_being_checked);
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206 }
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207
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208 void
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209 vars_of_debug (void)
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210 {
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211 /* If you need to have any classes active early on in startup, then
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212 the flags should be set here.
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213 All functions called by this function are "allowed" according
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214 to emacs.c. */
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215 xemacs_debug_loop (INIT, Qnil, Qnil);
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216 }
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