Mercurial > cpython-lru_cache-weakref
annotate Python/modsupport.c @ 674:4e2d239dc64c legacy-trunk
Move printing of filename and lineno to tb_displayline.
Search sys.path if the filename isn't found.
Include osdefs.h.
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Wed, 26 Feb 1992 15:17:59 +0000 |
| parents | 3cb686c48cdd |
| children | f179d8d5ee8c |
| rev | line source |
|---|---|
| 145 | 1 /*********************************************************** |
| 2 Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The | |
| 3 Netherlands. | |
| 4 | |
| 5 All Rights Reserved | |
| 6 | |
| 7 Permission to use, copy, modify, and distribute this software and its | |
| 8 documentation for any purpose and without fee is hereby granted, | |
| 9 provided that the above copyright notice appear in all copies and that | |
| 10 both that copyright notice and this permission notice appear in | |
| 11 supporting documentation, and that the names of Stichting Mathematisch | |
| 12 Centrum or CWI not be used in advertising or publicity pertaining to | |
| 13 distribution of the software without specific, written prior permission. | |
| 14 | |
| 15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO | |
| 16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE | |
| 18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT | |
| 21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 22 | |
| 23 ******************************************************************/ | |
| 24 | |
| 6 | 25 /* Module support implementation */ |
| 26 | |
| 86 | 27 #include "allobjects.h" |
| 6 | 28 #include "modsupport.h" |
| 29 #include "import.h" | |
| 30 | |
|
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31 #ifdef HAVE_PROTOTYPES |
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32 #define USE_STDARG |
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33 #endif |
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34 |
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35 #ifdef USE_STDARG |
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36 #include <stdarg.h> |
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37 #else |
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38 #include <varargs.h> |
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39 #endif |
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40 |
| 6 | 41 |
| 42 object * | |
| 43 initmodule(name, methods) | |
| 44 char *name; | |
| 45 struct methodlist *methods; | |
| 46 { | |
| 47 object *m, *d, *v; | |
| 48 struct methodlist *ml; | |
| 86 | 49 char namebuf[256]; |
| 50 if ((m = add_module(name)) == NULL) { | |
| 6 | 51 fprintf(stderr, "initializing module: %s\n", name); |
| 52 fatal("can't create a module"); | |
| 53 } | |
| 54 d = getmoduledict(m); | |
| 55 for (ml = methods; ml->ml_name != NULL; ml++) { | |
| 86 | 56 sprintf(namebuf, "%s.%s", name, ml->ml_name); |
| 57 v = newmethodobject(strdup(namebuf), ml->ml_meth, | |
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58 (object *)NULL, ml->ml_varargs); |
| 86 | 59 /* XXX The strdup'ed memory is never freed */ |
| 6 | 60 if (v == NULL || dictinsert(d, ml->ml_name, v) != 0) { |
| 61 fprintf(stderr, "initializing module: %s\n", name); | |
| 62 fatal("can't initialize module"); | |
| 63 } | |
| 64 DECREF(v); | |
| 65 } | |
| 86 | 66 return m; |
| 6 | 67 } |
| 68 | |
| 69 | |
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70 /* Generic argument list parser */ |
| 6 | 71 |
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72 static int do_arg PROTO((object *arg, char** p_format, va_list *p_va)); |
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73 static int |
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74 do_arg(arg, p_format, p_va) |
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75 object *arg; |
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76 char** p_format; |
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77 va_list *p_va; |
| 6 | 78 { |
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79 char *format = *p_format; |
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80 va_list va = *p_va; |
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81 |
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82 if (arg == NULL) |
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83 return 0; /* Incomplete tuple or list */ |
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84 |
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85 switch (*format++) { |
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86 |
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87 case '('/*')'*/: /* tuple, distributed over C parameters */ { |
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88 int i, n; |
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89 if (!is_tupleobject(arg)) |
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90 return 0; |
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91 n = gettuplesize(arg); |
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92 for (i = 0; i < n; i++) { |
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93 if (!do_arg(gettupleitem(arg, i), &format, &va)) |
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94 return 0; |
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95 } |
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96 if (*format++ != /*'('*/')') |
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97 return 0; |
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98 break; |
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99 } |
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100 |
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101 case 'h': /* short int */ { |
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102 short *p = va_arg(va, short *); |
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103 if (is_intobject(arg)) |
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104 *p = getintvalue(arg); |
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105 else |
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106 return 0; |
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107 break; |
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108 } |
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109 |
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110 case 'i': /* int */ { |
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111 int *p = va_arg(va, int *); |
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112 if (is_intobject(arg)) |
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113 *p = getintvalue(arg); |
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114 else |
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115 return 0; |
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116 break; |
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117 } |
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118 |
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119 case 'l': /* long int */ { |
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120 long *p = va_arg(va, long *); |
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121 if (is_intobject(arg)) |
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122 *p = getintvalue(arg); |
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123 else |
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124 return 0; |
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125 break; |
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126 } |
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127 |
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128 case 'f': /* float */ { |
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129 float *p = va_arg(va, float *); |
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130 if (is_floatobject(arg)) |
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131 *p = getfloatvalue(arg); |
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132 else if (is_intobject(arg)) |
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133 *p = (float)getintvalue(arg); |
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134 else |
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135 return 0; |
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136 break; |
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137 } |
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138 |
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139 case 'd': /* double */ { |
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140 double *p = va_arg(va, double *); |
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141 if (is_floatobject(arg)) |
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142 *p = getfloatvalue(arg); |
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143 else if (is_intobject(arg)) |
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144 *p = (double)getintvalue(arg); |
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145 else |
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146 return 0; |
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147 break; |
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148 } |
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149 |
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150 case 'c': /* char */ { |
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151 char *p = va_arg(va, char *); |
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152 if (is_stringobject(arg) && getstringsize(arg) == 1) |
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153 *p = getstringvalue(arg)[0]; |
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154 else |
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155 return 0; |
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156 break; |
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157 } |
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158 |
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159 case 's': /* string */ { |
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160 char **p = va_arg(va, char **); |
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161 if (is_stringobject(arg)) |
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162 *p = getstringvalue(arg); |
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163 else |
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164 return 0; |
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165 if (*format == '#') { |
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166 int *q = va_arg(va, int *); |
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167 *q = getstringsize(arg); |
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168 format++; |
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169 } |
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170 break; |
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171 } |
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172 |
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173 case 'z': /* string, may be NULL (None) */ { |
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174 char **p = va_arg(va, char **); |
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175 if (arg == None) |
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176 *p = 0; |
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177 else if (is_stringobject(arg)) |
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178 *p = getstringvalue(arg); |
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179 else |
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180 return 0; |
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181 if (*format == '#') { |
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182 int *q = va_arg(va, int *); |
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183 if (arg == None) |
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184 *q = 0; |
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185 else |
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186 *q = getstringsize(arg); |
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187 format++; |
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188 } |
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189 break; |
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190 } |
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191 |
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192 case 'S': /* string object */ { |
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193 object **p = va_arg(va, object **); |
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194 if (is_stringobject(arg)) |
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195 *p = arg; |
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196 else |
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197 return 0; |
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198 break; |
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199 } |
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200 |
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201 case 'O': /* object */ { |
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202 object **p = va_arg(va, object **); |
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203 *p = arg; |
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204 break; |
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205 } |
| 6 | 206 |
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207 default: |
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208 fprintf(stderr, "bad do_arg format: x%x '%c'\n", |
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209 format[-1], format[-1]); |
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210 return 0; |
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211 |
| 6 | 212 } |
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213 |
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214 *p_va = va; |
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215 *p_format = format; |
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216 |
| 6 | 217 return 1; |
| 218 } | |
| 219 | |
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220 #ifdef USE_STDARG |
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221 int getargs(object *arg, char *format, ...) |
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222 #else |
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223 int getargs(va_alist) va_dcl |
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224 #endif |
| 6 | 225 { |
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226 char *f; |
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227 int ok; |
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228 va_list va; |
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229 #ifdef USE_STDARG |
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230 |
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231 va_start(va, format); |
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232 #else |
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233 object *arg; |
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234 char *format; |
| 6 | 235 |
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236 va_start(va); |
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237 arg = va_arg(va, object *); |
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238 format = va_arg(va, char *); |
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239 #endif |
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240 if (*format == '\0') { |
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241 va_end(va); |
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242 if (arg != NULL) { |
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243 err_setstr(TypeError, "no arguments needed"); |
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244 return 0; |
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245 } |
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246 return 1; |
| 6 | 247 } |
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248 |
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249 f = format; |
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250 ok = do_arg(arg, &f, &va) && *f == '\0'; |
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251 va_end(va); |
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252 if (!ok) { |
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253 char buf[256]; |
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254 sprintf(buf, "bad argument list (format '%s')", format); |
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255 err_setstr(TypeError, buf); |
| 6 | 256 } |
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257 return ok; |
| 6 | 258 } |
| 259 | |
| 260 int | |
| 261 getlongtuplearg(args, a, n) | |
| 262 object *args; | |
| 263 long *a; /* [n] */ | |
| 264 int n; | |
| 265 { | |
| 266 int i; | |
| 267 if (!is_tupleobject(args) || gettuplesize(args) != n) { | |
| 268 return err_badarg(); | |
| 269 } | |
| 270 for (i = 0; i < n; i++) { | |
| 271 object *v = gettupleitem(args, i); | |
| 272 if (!is_intobject(v)) { | |
| 273 return err_badarg(); | |
| 274 } | |
| 275 a[i] = getintvalue(v); | |
| 276 } | |
| 277 return 1; | |
| 278 } | |
| 279 | |
| 280 int | |
| 281 getshorttuplearg(args, a, n) | |
| 282 object *args; | |
| 283 short *a; /* [n] */ | |
| 284 int n; | |
| 285 { | |
| 286 int i; | |
| 287 if (!is_tupleobject(args) || gettuplesize(args) != n) { | |
| 288 return err_badarg(); | |
| 289 } | |
| 290 for (i = 0; i < n; i++) { | |
| 291 object *v = gettupleitem(args, i); | |
| 292 if (!is_intobject(v)) { | |
| 293 return err_badarg(); | |
| 294 } | |
| 295 a[i] = getintvalue(v); | |
| 296 } | |
| 297 return 1; | |
| 298 } | |
| 299 | |
| 300 int | |
| 301 getlonglistarg(args, a, n) | |
| 302 object *args; | |
| 303 long *a; /* [n] */ | |
| 304 int n; | |
| 305 { | |
| 306 int i; | |
| 307 if (!is_listobject(args) || getlistsize(args) != n) { | |
| 308 return err_badarg(); | |
| 309 } | |
| 310 for (i = 0; i < n; i++) { | |
| 311 object *v = getlistitem(args, i); | |
| 312 if (!is_intobject(v)) { | |
| 313 return err_badarg(); | |
| 314 } | |
| 315 a[i] = getintvalue(v); | |
| 316 } | |
| 317 return 1; | |
| 318 } | |
| 319 | |
| 320 int | |
| 321 getshortlistarg(args, a, n) | |
| 322 object *args; | |
| 323 short *a; /* [n] */ | |
| 324 int n; | |
| 325 { | |
| 326 int i; | |
| 327 if (!is_listobject(args) || getlistsize(args) != n) { | |
| 328 return err_badarg(); | |
| 329 } | |
| 330 for (i = 0; i < n; i++) { | |
| 331 object *v = getlistitem(args, i); | |
| 332 if (!is_intobject(v)) { | |
| 333 return err_badarg(); | |
| 334 } | |
| 335 a[i] = getintvalue(v); | |
| 336 } | |
| 337 return 1; | |
| 338 } |