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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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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42 static Lisp_Object Qredisplay, Qbuffers, Qfaces, Qwindows, Qframes, Qdevices;
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43
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44 struct debug_classes active_debug_classes;
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45
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46 enum debug_loop
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47 {
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48 X_ADD,
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49 X_DELETE,
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50 X_LIST,
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51 X_ACTIVE,
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52 X_INIT,
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53 X_VALIDATE,
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54 X_TYPE,
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55 X_SETTYPE
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56 };
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57
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58 static Lisp_Object
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59 xemacs_debug_loop (enum debug_loop op, Lisp_Object class, Lisp_Object type)
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60 {
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61 int flag = (op == X_ADD) ? 1 : 0;
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62 Lisp_Object retval = Qnil;
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63
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64 #define FROB(item) \
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65 if (op == X_LIST || op == X_ACTIVE || op == X_INIT || EQ (class, Q##item)) \
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66 { \
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67 if (op == X_ADD || op == X_DELETE || op == X_INIT) \
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68 active_debug_classes.item = flag; \
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69 else if (op == X_LIST \
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70 || (op == X_ACTIVE && active_debug_classes.item)) \
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71 retval = Fcons (Q##item, retval); \
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72 else if (op == X_VALIDATE) \
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73 return Qt; \
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74 else if (op == X_SETTYPE) \
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75 active_debug_classes.types_of_##item = XINT (type); \
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76 else if (op == X_TYPE) \
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77 retval = make_int (active_debug_classes.types_of_##item); \
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78 if (op == X_INIT) active_debug_classes.types_of_##item = VALBITS; \
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428
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79 }
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80
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81 FROB (redisplay);
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82 FROB (buffers);
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83 FROB (extents);
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84 FROB (faces);
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85 FROB (windows);
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86 FROB (frames);
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87 FROB (devices);
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88 FROB (byte_code);
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89
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90 return retval;
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91 #undef FROB
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92 }
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93
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94 DEFUN ("add-debug-class-to-check", Fadd_debug_class_to_check, 1, 1, 0, /*
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95 Add a debug class to the list of active classes.
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96 */
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97 (class))
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98 {
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99 if (NILP (xemacs_debug_loop (X_VALIDATE, class, Qnil)))
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100 invalid_argument ("No such debug class exists", Qunbound);
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101 else
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102 xemacs_debug_loop (X_ADD, class, Qnil);
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103
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104 return (xemacs_debug_loop (X_ACTIVE, Qnil, Qnil));
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105 }
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106
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107 DEFUN ("delete-debug-class-to-check", Fdelete_debug_class_to_check, 1, 1, 0, /*
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108 Delete a debug class from the list of active classes.
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109 */
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110 (class))
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111 {
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112 if (NILP (xemacs_debug_loop (X_VALIDATE, class, Qnil)))
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113 invalid_argument ("No such debug class exists", Qunbound);
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114 else
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115 xemacs_debug_loop (X_DELETE, class, Qnil);
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116
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117 return (xemacs_debug_loop (X_ACTIVE, Qnil, Qnil));
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118 }
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119
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120 DEFUN ("debug-classes-being-checked", Fdebug_classes_being_checked, 0, 0, 0, /*
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121 Return a list of active debug classes.
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122 */
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123 ())
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124 {
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125 return (xemacs_debug_loop (X_ACTIVE, Qnil, Qnil));
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126 }
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127
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128 DEFUN ("debug-classes-list", Fdebug_classes_list, 0, 0, 0, /*
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129 Return a list of all defined debug classes.
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130 */
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131 ())
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132 {
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133 return (xemacs_debug_loop (X_LIST, Qnil, Qnil));
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134 }
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135
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136 DEFUN ("set-debug-classes-to-check", Fset_debug_classes_to_check, 1, 1, 0, /*
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137 Set which classes of debug statements should be active.
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138 CLASSES should be a list of debug classes.
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139 */
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140 (classes))
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141 {
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142 Lisp_Object rest;
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143
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144 CHECK_LIST (classes);
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145
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146 /* Make sure all objects in the list are valid. If anyone is not
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147 valid, reject the entire list without doing anything. */
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148 LIST_LOOP (rest, classes )
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149 {
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150 if (NILP (xemacs_debug_loop (X_VALIDATE, XCAR (rest), Qnil)))
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151 sferror ("Invalid object in class list", Qunbound);
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152 }
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153
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154 LIST_LOOP (rest, classes)
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155 Fadd_debug_class_to_check (XCAR (rest));
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156
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157 return (xemacs_debug_loop (X_ACTIVE, Qnil, Qnil));
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158 }
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159
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160 DEFUN ("set-debug-class-types-to-check", Fset_debug_class_types_to_check, 2, 2, 0, /*
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161 For the given debug CLASS, set which TYPES are actually interesting.
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162 TYPES should be an integer representing the or'd value of all desired types.
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163 Lists of defined types and their values are located in the source code.
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164 */
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165 (class, type))
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166 {
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167 CHECK_INT (type);
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168 if (NILP (xemacs_debug_loop (X_VALIDATE, class, Qnil)))
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169 invalid_argument ("Invalid debug class", Qunbound);
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170
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171 xemacs_debug_loop (X_SETTYPE, class, type);
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172
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173 return (xemacs_debug_loop (X_TYPE, class, Qnil));
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174 }
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175
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176 DEFUN ("debug-types-being-checked", Fdebug_types_being_checked, 1, 1, 0, /*
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177 For the given CLASS, return the associated type value.
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178 */
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179 (class))
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180 {
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181 if (NILP (xemacs_debug_loop (X_VALIDATE, class, Qnil)))
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182 invalid_argument ("Invalid debug class", Qunbound);
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183
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184 return (xemacs_debug_loop (X_TYPE, class, Qnil));
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185 }
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186
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187 void
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188 syms_of_debug (void)
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189 {
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190 DEFSYMBOL (Qredisplay);
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191 DEFSYMBOL (Qbuffers);
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192 DEFSYMBOL (Qfaces);
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193 DEFSYMBOL (Qwindows);
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194 DEFSYMBOL (Qframes);
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195 DEFSYMBOL (Qdevices);
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196
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197 DEFSUBR (Fadd_debug_class_to_check);
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198 DEFSUBR (Fdelete_debug_class_to_check);
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199 DEFSUBR (Fdebug_classes_being_checked);
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200 DEFSUBR (Fdebug_classes_list);
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201 DEFSUBR (Fset_debug_classes_to_check);
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202 DEFSUBR (Fset_debug_class_types_to_check);
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203 DEFSUBR (Fdebug_types_being_checked);
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204 }
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205
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206 void
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207 reinit_vars_of_debug (void)
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208 {
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209 /* If you need to have any classes active early on in startup, then
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210 the flags should be set here.
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211 All functions called by this function are "allowed" according
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212 to emacs.c. */
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213 xemacs_debug_loop (X_INIT, Qnil, Qnil);
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214 }
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215
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216 void
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217 vars_of_debug (void)
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218 {
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219 reinit_vars_of_debug ();
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220 }
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