428
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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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1318
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34 * 1. Add a symbol definition for it here or in general-slots.h, if one
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35 * doesn't exist elsewhere. If you add it here, make sure to add a
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36 * defsymbol 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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42 struct debug_classes active_debug_classes;
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43
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44 enum debug_loop
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45 {
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46 X_ADD,
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47 X_DELETE,
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48 X_LIST,
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49 X_ACTIVE,
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50 X_INIT,
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51 X_VALIDATE,
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52 X_TYPE,
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53 X_SETTYPE
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54 };
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55
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56 static Lisp_Object
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57 xemacs_debug_loop (enum debug_loop op, Lisp_Object class_, Lisp_Object type)
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428
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58 {
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59 int flag = (op == X_ADD) ? 1 : 0;
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60 Lisp_Object retval = Qnil;
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61
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62 #define FROB(item) \
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63 if (op == X_LIST || op == X_ACTIVE || op == X_INIT || EQ (class_, Q##item)) \
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64 { \
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65 if (op == X_ADD || op == X_DELETE || op == X_INIT) \
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66 active_debug_classes.item = flag; \
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67 else if (op == X_LIST \
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68 || (op == X_ACTIVE && active_debug_classes.item)) \
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69 retval = Fcons (Q##item, retval); \
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70 else if (op == X_VALIDATE) \
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71 return Qt; \
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72 else if (op == X_SETTYPE) \
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73 active_debug_classes.types_of_##item = XINT (type); \
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74 else if (op == X_TYPE) \
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75 retval = make_int (active_debug_classes.types_of_##item); \
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76 if (op == X_INIT) active_debug_classes.types_of_##item = VALBITS; \
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428
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77 }
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78
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79 FROB (redisplay);
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80 FROB (buffers);
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81 FROB (extents);
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82 FROB (faces);
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83 FROB (windows);
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84 FROB (frames);
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85 FROB (devices);
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86 FROB (byte_code);
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87
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88 return retval;
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89 #undef FROB
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90 }
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91
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92 DEFUN ("add-debug-class-to-check", Fadd_debug_class_to_check, 1, 1, 0, /*
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93 Add a debug class to the list of active classes.
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94 */
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95 (class_))
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96 {
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97 if (NILP (xemacs_debug_loop (X_VALIDATE, class_, Qnil)))
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98 invalid_argument ("No such debug class exists", Qunbound);
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99 else
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100 xemacs_debug_loop (X_ADD, class_, Qnil);
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101
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102 return (xemacs_debug_loop (X_ACTIVE, Qnil, Qnil));
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103 }
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104
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105 DEFUN ("delete-debug-class-to-check", Fdelete_debug_class_to_check, 1, 1, 0, /*
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106 Delete a debug class from the list of active classes.
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107 */
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108 (class_))
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109 {
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110 if (NILP (xemacs_debug_loop (X_VALIDATE, class_, Qnil)))
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111 invalid_argument ("No such debug class exists", Qunbound);
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112 else
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113 xemacs_debug_loop (X_DELETE, class_, Qnil);
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114
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115 return (xemacs_debug_loop (X_ACTIVE, Qnil, Qnil));
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116 }
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117
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118 DEFUN ("debug-classes-being-checked", Fdebug_classes_being_checked, 0, 0, 0, /*
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119 Return a list of active debug classes.
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120 */
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121 ())
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122 {
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123 return (xemacs_debug_loop (X_ACTIVE, Qnil, Qnil));
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124 }
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125
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126 DEFUN ("debug-classes-list", Fdebug_classes_list, 0, 0, 0, /*
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127 Return a list of all defined debug classes.
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128 */
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129 ())
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130 {
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131 return (xemacs_debug_loop (X_LIST, Qnil, Qnil));
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132 }
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133
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134 DEFUN ("set-debug-classes-to-check", Fset_debug_classes_to_check, 1, 1, 0, /*
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135 Set which classes of debug statements should be active.
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136 CLASSES should be a list of debug classes.
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137 */
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138 (classes))
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139 {
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140 Lisp_Object rest;
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141
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142 CHECK_LIST (classes);
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143
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144 /* Make sure all objects in the list are valid. If anyone is not
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145 valid, reject the entire list without doing anything. */
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146 LIST_LOOP (rest, classes)
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147 {
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148 if (NILP (xemacs_debug_loop (X_VALIDATE, XCAR (rest), Qnil)))
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149 sferror ("Invalid object in class list", Qunbound);
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150 }
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151
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152 LIST_LOOP (rest, classes)
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153 Fadd_debug_class_to_check (XCAR (rest));
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154
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155 return (xemacs_debug_loop (X_ACTIVE, Qnil, Qnil));
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156 }
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157
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158 DEFUN ("set-debug-class-types-to-check", Fset_debug_class_types_to_check, 2, 2, 0, /*
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159 For the given debug CLASS, set which TYPES are actually interesting.
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160 TYPES should be an integer representing the or'd value of all desired types.
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161 Lists of defined types and their values are located in the source code.
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162 */
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163 (class_, type))
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428
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164 {
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165 CHECK_INT (type);
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166 if (NILP (xemacs_debug_loop (X_VALIDATE, class_, Qnil)))
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167 invalid_argument ("Invalid debug class", Qunbound);
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168
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169 xemacs_debug_loop (X_SETTYPE, class_, type);
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170
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171 return (xemacs_debug_loop (X_TYPE, class_, Qnil));
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428
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172 }
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173
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174 DEFUN ("debug-types-being-checked", Fdebug_types_being_checked, 1, 1, 0, /*
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175 For the given CLASS, return the associated type value.
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176 */
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177 (class_))
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428
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178 {
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179 if (NILP (xemacs_debug_loop (X_VALIDATE, class_, Qnil)))
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563
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180 invalid_argument ("Invalid debug class", Qunbound);
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181
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182 return (xemacs_debug_loop (X_TYPE, class_, Qnil));
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428
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183 }
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184
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185 void
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186 syms_of_debug (void)
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187 {
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188 DEFSUBR (Fadd_debug_class_to_check);
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189 DEFSUBR (Fdelete_debug_class_to_check);
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190 DEFSUBR (Fdebug_classes_being_checked);
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191 DEFSUBR (Fdebug_classes_list);
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192 DEFSUBR (Fset_debug_classes_to_check);
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193 DEFSUBR (Fset_debug_class_types_to_check);
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194 DEFSUBR (Fdebug_types_being_checked);
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195 }
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196
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197 void
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198 reinit_vars_of_debug (void)
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199 {
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200 /* If you need to have any classes active early on in startup, then
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201 the flags should be set here.
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202 All functions called by this function are "allowed" according
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203 to emacs.c. */
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436
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204 xemacs_debug_loop (X_INIT, Qnil, Qnil);
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428
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205 }
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206
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207 void
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208 vars_of_debug (void)
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209 {
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210 }
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