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annotate place.c @ 8:97243badae69

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split place stuff to its own file
author David A. Holland
date Sun, 19 Dec 2010 19:15:55 -0500
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children 800f3a560a3b
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1 #include <assert.h>
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2 #include <stdarg.h>
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3 #include <stdio.h>
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4 #include <stdlib.h>
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5
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6 #include "utils.h"
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7 #include "place.h"
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8
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9 static bool overall_failure;
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10
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11 #define NOWHERE_LINE 0
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12 #define BUILTIN_LINE 1
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13 #define COMMANDLINE_LINE 2
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14
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15 static struct place scratchplace;
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16 static bool scratchplace_inuse;
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17
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18 static
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19 bool
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20 place_isnowhere(const struct place *p)
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21 {
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22 return p->file == NULL && p->line == NOWHERE_LINE;
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23 }
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24
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25 static
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26 bool
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27 place_isbuiltin(const struct place *p)
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28 {
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29 return p->file == NULL && p->line == BUILTIN_LINE;
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30 }
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31
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32 static
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33 bool
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34 place_iscommandline(const struct place *p)
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35 {
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36 return p->file == NULL && p->line == COMMANDLINE_LINE;
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37 }
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38
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39 struct place *
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40 place_gettemporary(void)
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41 {
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42 assert(!scratchplace_inuse);
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43 scratchplace_inuse = true;
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44 return &scratchplace;
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45 }
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46
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47 void
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48 place_puttemporary(struct place *p)
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49 {
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50 assert(scratchplace_inuse);
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51 assert(p == &scratchplace);
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52 scratchplace_inuse = false;
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53 }
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54
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55 struct place *
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56 place_create(void)
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57 {
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58 struct place *p;
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59
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60 p = domalloc(sizeof(*p));
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61 place_setnowhere(p);
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62 return p;
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63 }
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64
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65 struct place *
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66 place_clone(const struct place *op)
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67 {
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68 struct place *p;
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69
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70 p = domalloc(sizeof(*p));
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71 *p = *op;
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72 return p;
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73 }
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74
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75 void
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76 place_destroy(struct place *p)
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77 {
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78 free(p);
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79 }
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80
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81 void
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82 place_setnowhere(struct place *p)
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83 {
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84 p->file = NULL;
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85 p->line = NOWHERE_LINE;
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86 p->column = 0;
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87 }
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88
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89 void
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90 place_setbuiltin(struct place *p, unsigned num)
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91 {
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92 p->file = NULL;
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93 p->line = BUILTIN_LINE;
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94 p->column = num;
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95 }
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96
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97 void
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98 place_setcommandline(struct place *p, unsigned column)
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99 {
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100 p->file = NULL;
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101 p->line = COMMANDLINE_LINE;
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102 p->column = column;
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103 }
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104
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105 static
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106 void
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107 place_print(const struct place *p)
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108 {
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109 if (place_iscommandline(p)) {
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110 fprintf(stderr, "<command-line>:1:%u", p->column);
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111 } else if (place_isbuiltin(p)) {
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112 fprintf(stderr, "<built-in>:%u:1", p->column);
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113 } else {
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114 fprintf(stderr, "%s:%u:%u", seenfile_getname(p->file),
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115 p->line, p->column);
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116 }
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117 }
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118
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119 static
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120 void
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121 place_printfrom(const struct place *p)
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122 {
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123 const struct place *from;
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124
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125 from = seenfile_getincludeplace(p->file);
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126 if (!place_isnowhere(from)) {
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127 place_printfrom(from);
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128 }
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129 fprintf(stderr, "In file included from ");
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130 place_print(p);
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131 fprintf(stderr, ":\n");
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132 }
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133
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134 void
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135 complain(const struct place *p, const char *fmt, ...)
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136 {
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137 va_list ap;
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138 const struct place *from;
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139
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140 from = seenfile_getincludeplace(p->file);
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141 if (!place_isnowhere(from)) {
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142 place_printfrom(from);
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143 }
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144 place_print(p);
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145 fprintf(stderr, ": ");
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146 va_start(ap, fmt);
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147 vfprintf(stderr, fmt, ap);
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148 va_end(ap);
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149 fprintf(stderr, "\n");
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150 }
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151
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152 void
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153 complain_fail(void)
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154 {
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155 overall_failure = true;
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156 }
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157
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158 bool
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159 complain_failed(void)
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160 {
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161 return overall_failure;
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162 }
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163