Mercurial > cpython-lru_cache-weakref
annotate Python/bltinmodule.c @ 1290:7971fecbf28e legacy-trunk
* Lots of small changes related to access.
* Added "access *: ...", made access work for class methods.
* Introduced subclass check: make sure that when calling
ClassName.methodname(instance, ...), the instance is an instance of
ClassName or of a subclass thereof (this might break some old code!)
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Fri, 21 May 1993 19:56:10 +0000 |
| parents | 4d292c7857d4 |
| children | 6ee380349c84 |
| rev | line source |
|---|---|
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1 /*********************************************************** |
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2 Copyright 1991, 1992, 1993 by Stichting Mathematisch Centrum, |
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3 Amsterdam, The Netherlands. |
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4 |
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5 All Rights Reserved |
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6 |
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7 Permission to use, copy, modify, and distribute this software and its |
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8 documentation for any purpose and without fee is hereby granted, |
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9 provided that the above copyright notice appear in all copies and that |
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10 both that copyright notice and this permission notice appear in |
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11 supporting documentation, and that the names of Stichting Mathematisch |
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12 Centrum or CWI not be used in advertising or publicity pertaining to |
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13 distribution of the software without specific, written prior permission. |
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14 |
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15 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
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16 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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17 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
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18 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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19 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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20 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
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21 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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22 |
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23 ******************************************************************/ |
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24 |
| 86 | 25 /* Built-in functions */ |
| 26 | |
| 27 #include "allobjects.h" | |
| 28 | |
| 29 #include "node.h" | |
| 30 #include "graminit.h" | |
| 31 #include "errcode.h" | |
| 32 #include "sysmodule.h" | |
| 119 | 33 #include "bltinmodule.h" |
| 86 | 34 #include "import.h" |
| 35 #include "pythonrun.h" | |
| 36 #include "ceval.h" | |
| 37 #include "modsupport.h" | |
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38 #include "compile.h" |
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39 #include "eval.h" |
| 86 | 40 |
| 41 static object * | |
| 42 builtin_abs(self, v) | |
| 43 object *self; | |
| 44 object *v; | |
| 45 { | |
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46 number_methods *nm; |
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47 if (v == NULL || (nm = v->ob_type->tp_as_number) == NULL) { |
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48 err_setstr(TypeError, "abs() requires numeric argument"); |
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49 return NULL; |
| 86 | 50 } |
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51 return (*nm->nb_absolute)(v); |
| 86 | 52 } |
| 53 | |
| 54 static object * | |
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55 builtin_apply(self, args) |
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56 object *self; |
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57 object *args; |
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58 { |
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59 object *func, *arglist; |
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60 if (!getargs(args, "(OO)", &func, &arglist)) |
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61 return NULL; |
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62 return call_object(func, arglist); |
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63 } |
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64 |
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65 static object * |
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66 builtin_chr(self, args) |
| 86 | 67 object *self; |
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68 object *args; |
| 86 | 69 { |
| 70 long x; | |
| 71 char s[1]; | |
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72 if (!getargs(args, "l", &x)) |
| 86 | 73 return NULL; |
| 74 if (x < 0 || x >= 256) { | |
| 463 | 75 err_setstr(ValueError, "chr() arg not in range(256)"); |
| 86 | 76 return NULL; |
| 77 } | |
| 78 s[0] = x; | |
| 79 return newsizedstringobject(s, 1); | |
| 80 } | |
| 81 | |
| 82 static object * | |
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83 builtin_cmp(self, args) |
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84 object *self; |
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85 object *args; |
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86 { |
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87 object *a, *b; |
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88 if (!getargs(args, "(OO)", &a, &b)) |
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89 return NULL; |
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90 return newintobject((long)cmpobject(a, b)); |
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91 } |
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92 |
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93 static object * |
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94 builtin_coerce(self, args) |
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95 object *self; |
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96 object *args; |
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97 { |
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98 object *v, *w; |
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99 object *res; |
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100 |
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101 if (!getargs(args, "(OO)", &v, &w)) |
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102 return NULL; |
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103 if (coerce(&v, &w) < 0) |
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104 return NULL; |
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105 res = mkvalue("(OO)", v, w); |
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106 DECREF(v); |
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107 DECREF(w); |
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108 return res; |
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109 } |
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110 |
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111 static object * |
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112 builtin_compile(self, args) |
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113 object *self; |
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114 object *args; |
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115 { |
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116 char *str; |
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117 char *filename; |
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118 char *startstr; |
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119 int start; |
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120 if (!getargs(args, "(sss)", &str, &filename, &startstr)) |
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121 return NULL; |
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122 if (strcmp(startstr, "exec") == 0) |
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123 start = file_input; |
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124 else if (strcmp(startstr, "eval") == 0) |
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125 start = eval_input; |
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126 else { |
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127 err_setstr(ValueError, |
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128 "compile() mode must be 'exec' or 'eval'"); |
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129 return NULL; |
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130 } |
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131 return compile_string(str, filename, start); |
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132 } |
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133 |
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134 static object * |
| 86 | 135 builtin_dir(self, v) |
| 136 object *self; | |
| 137 object *v; | |
| 138 { | |
| 139 object *d; | |
| 140 if (v == NULL) { | |
| 141 d = getlocals(); | |
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142 INCREF(d); |
| 86 | 143 } |
| 144 else { | |
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145 d = getattr(v, "__dict__"); |
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146 if (d == NULL) { |
| 86 | 147 err_setstr(TypeError, |
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148 "dir() argument must have __dict__ attribute"); |
| 86 | 149 return NULL; |
| 150 } | |
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151 } |
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152 if (is_dictobject(d)) { |
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153 v = getdictkeys(d); |
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154 if (sortlist(v) != 0) { |
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155 DECREF(v); |
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156 v = NULL; |
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157 } |
| 86 | 158 } |
|
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159 else { |
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160 v = newlistobject(0); |
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161 } |
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162 DECREF(d); |
| 86 | 163 return v; |
| 164 } | |
| 165 | |
| 166 static object * | |
|
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167 builtin_divmod(self, args) |
| 86 | 168 object *self; |
|
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169 object *args; |
| 86 | 170 { |
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171 object *v, *w, *x; |
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172 if (!getargs(args, "(OO)", &v, &w)) |
| 86 | 173 return NULL; |
|
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174 if (v->ob_type->tp_as_number == NULL || |
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175 w->ob_type->tp_as_number == NULL) { |
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223
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176 err_setstr(TypeError, "divmod() requires numeric arguments"); |
| 86 | 177 return NULL; |
| 178 } | |
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179 if (coerce(&v, &w) != 0) |
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180 return NULL; |
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181 x = (*v->ob_type->tp_as_number->nb_divmod)(v, w); |
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182 DECREF(v); |
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183 DECREF(w); |
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184 return x; |
| 86 | 185 } |
| 186 | |
| 187 static object * | |
| 188 exec_eval(v, start) | |
| 189 object *v; | |
| 190 int start; | |
| 191 { | |
| 192 object *str = NULL, *globals = NULL, *locals = NULL; | |
|
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193 char *s; |
| 86 | 194 int n; |
| 195 if (v != NULL) { | |
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196 if (is_tupleobject(v) && |
| 86 | 197 ((n = gettuplesize(v)) == 2 || n == 3)) { |
| 198 str = gettupleitem(v, 0); | |
| 199 globals = gettupleitem(v, 1); | |
| 200 if (n == 3) | |
| 201 locals = gettupleitem(v, 2); | |
| 202 } | |
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203 else |
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204 str = v; |
| 86 | 205 } |
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206 if (str == NULL || (!is_stringobject(str) && !is_codeobject(str)) || |
| 86 | 207 globals != NULL && !is_dictobject(globals) || |
| 208 locals != NULL && !is_dictobject(locals)) { | |
| 209 err_setstr(TypeError, | |
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210 "exec/eval arguments must be (string|code)[,dict[,dict]]"); |
| 86 | 211 return NULL; |
| 212 } | |
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213 if (is_codeobject(str)) |
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214 return eval_code((codeobject *) str, globals, locals, |
|
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215 (object *)NULL, (object *)NULL); |
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216 s = getstringvalue(str); |
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217 if (strlen(s) != getstringsize(str)) { |
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218 err_setstr(ValueError, "embedded '\\0' in string arg"); |
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219 return NULL; |
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220 } |
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221 if (start == eval_input) { |
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222 while (*s == ' ' || *s == '\t') |
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223 s++; |
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224 } |
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225 return run_string(s, start, globals, locals); |
| 86 | 226 } |
| 227 | |
| 228 static object * | |
| 229 builtin_eval(self, v) | |
| 230 object *self; | |
| 231 object *v; | |
| 232 { | |
| 233 return exec_eval(v, eval_input); | |
| 234 } | |
| 235 | |
| 236 static object * | |
| 237 builtin_exec(self, v) | |
| 238 object *self; | |
| 239 object *v; | |
| 240 { | |
| 241 return exec_eval(v, file_input); | |
| 242 } | |
| 243 | |
| 244 static object * | |
| 673 | 245 builtin_execfile(self, v) |
| 246 object *self; | |
| 247 object *v; | |
| 248 { | |
| 249 object *str = NULL, *globals = NULL, *locals = NULL, *w; | |
| 250 FILE* fp; | |
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251 char *s; |
| 673 | 252 int n; |
| 253 if (v != NULL) { | |
| 254 if (is_stringobject(v)) | |
| 255 str = v; | |
| 256 else if (is_tupleobject(v) && | |
| 257 ((n = gettuplesize(v)) == 2 || n == 3)) { | |
| 258 str = gettupleitem(v, 0); | |
| 259 globals = gettupleitem(v, 1); | |
| 260 if (n == 3) | |
| 261 locals = gettupleitem(v, 2); | |
| 262 } | |
| 263 } | |
| 264 if (str == NULL || !is_stringobject(str) || | |
| 265 globals != NULL && !is_dictobject(globals) || | |
| 266 locals != NULL && !is_dictobject(locals)) { | |
| 267 err_setstr(TypeError, | |
| 268 "execfile arguments must be filename[,dict[,dict]]"); | |
| 269 return NULL; | |
| 270 } | |
|
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271 s = getstringvalue(str); |
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272 if (strlen(s) != getstringsize(str)) { |
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273 err_setstr(ValueError, "embedded '\\0' in string arg"); |
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274 return NULL; |
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275 } |
| 926 | 276 BGN_SAVE |
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277 fp = fopen(s, "r"); |
| 926 | 278 END_SAVE |
| 673 | 279 if (fp == NULL) { |
| 280 err_setstr(IOError, "execfile cannot open the file argument"); | |
| 281 return NULL; | |
| 282 } | |
| 283 w = run_file(fp, getstringvalue(str), file_input, globals, locals); | |
| 926 | 284 BGN_SAVE |
| 673 | 285 fclose(fp); |
| 926 | 286 END_SAVE |
| 673 | 287 return w; |
| 288 } | |
| 289 | |
| 290 static object * | |
| 86 | 291 builtin_float(self, v) |
| 292 object *self; | |
| 293 object *v; | |
| 294 { | |
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295 number_methods *nb; |
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296 |
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297 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
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298 nb->nb_float == NULL) { |
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299 err_setstr(TypeError, |
|
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300 "float() argument can't be converted to float"); |
|
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301 return NULL; |
|
223
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302 } |
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303 return (*nb->nb_float)(v); |
| 86 | 304 } |
| 305 | |
| 306 static object * | |
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307 builtin_getattr(self, args) |
|
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308 object *self; |
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309 object *args; |
|
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310 { |
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311 object *v; |
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312 object *name; |
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313 if (!getargs(args, "(OS)", &v, &name)) |
|
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314 return NULL; |
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315 return getattro(v, name); |
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316 } |
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317 |
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318 static object * |
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319 builtin_hasattr(self, args) |
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320 object *self; |
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321 object *args; |
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322 { |
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323 object *v; |
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324 object *name; |
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325 if (!getargs(args, "(OS)", &v, &name)) |
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326 return NULL; |
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327 v = getattro(v, name); |
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328 if (v == NULL) { |
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329 err_clear(); |
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330 return newintobject(0L); |
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331 } |
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332 DECREF(v); |
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333 return newintobject(1L); |
|
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334 } |
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335 |
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336 static object * |
|
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337 builtin_id(self, args) |
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338 object *self; |
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339 object *args; |
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340 { |
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341 object *v; |
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342 if (!getargs(args, "O", &v)) |
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343 return NULL; |
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344 return newintobject((long)v); |
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345 } |
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346 |
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347 static object * |
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348 builtin_setattr(self, args) |
|
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349 object *self; |
|
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350 object *args; |
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351 { |
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352 object *v; |
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353 object *name; |
|
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354 object *value; |
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355 if (!getargs(args, "(OSO)", &v, &name, &value)) |
|
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356 return NULL; |
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357 if (setattro(v, name, value) != 0) |
|
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358 return NULL; |
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359 INCREF(None); |
|
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360 return None; |
|
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361 } |
|
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362 |
|
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363 static object * |
|
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364 builtin_hash(self, args) |
|
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365 object *self; |
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366 object *args; |
|
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367 { |
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368 object *v; |
|
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369 long x; |
|
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|
370 if (!getargs(args, "O", &v)) |
|
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|
371 return NULL; |
|
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|
372 x = hashobject(v); |
|
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|
373 if (x == -1) |
|
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374 return NULL; |
|
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375 return newintobject(x); |
|
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376 } |
|
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|
377 |
|
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|
378 static object * |
|
404
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Made dir() more robust.
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|
379 builtin_hex(self, v) |
|
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|
380 object *self; |
|
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381 object *v; |
|
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382 { |
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Made builtins int(), long(), float(), oct() and hex() more generic.
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383 number_methods *nb; |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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384 |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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385 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
|
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386 nb->nb_hex == NULL) { |
|
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387 err_setstr(TypeError, |
|
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388 "hex() argument can't be converted to hex"); |
|
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|
389 return NULL; |
|
404
9cd38d1ac391
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|
390 } |
|
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391 return (*nb->nb_hex)(v); |
|
404
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392 } |
|
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|
393 |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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|
394 static object *builtin_raw_input PROTO((object *, object *)); |
|
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395 |
|
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|
396 static object * |
| 86 | 397 builtin_input(self, v) |
| 398 object *self; | |
| 399 object *v; | |
| 400 { | |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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401 object *line = builtin_raw_input(self, v); |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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402 if (line == NULL) |
|
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403 return line; |
|
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|
404 v = exec_eval(line, eval_input); |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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405 DECREF(line); |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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406 return v; |
| 86 | 407 } |
| 408 | |
| 409 static object * | |
| 410 builtin_int(self, v) | |
| 411 object *self; | |
| 412 object *v; | |
| 413 { | |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
414 number_methods *nb; |
|
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415 |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
416 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
417 nb->nb_int == NULL) { |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
418 err_setstr(TypeError, |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
419 "int() argument can't be converted to int"); |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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420 return NULL; |
| 86 | 421 } |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
422 return (*nb->nb_int)(v); |
| 86 | 423 } |
| 424 | |
| 425 static object * | |
| 426 builtin_len(self, v) | |
| 427 object *self; | |
| 428 object *v; | |
| 429 { | |
| 430 long len; | |
| 431 typeobject *tp; | |
| 432 if (v == NULL) { | |
| 433 err_setstr(TypeError, "len() without argument"); | |
| 434 return NULL; | |
| 435 } | |
| 436 tp = v->ob_type; | |
| 437 if (tp->tp_as_sequence != NULL) { | |
| 438 len = (*tp->tp_as_sequence->sq_length)(v); | |
| 439 } | |
| 440 else if (tp->tp_as_mapping != NULL) { | |
| 441 len = (*tp->tp_as_mapping->mp_length)(v); | |
| 442 } | |
| 443 else { | |
| 444 err_setstr(TypeError, "len() of unsized object"); | |
| 445 return NULL; | |
| 446 } | |
|
944
222f04f55083
Changes so that user-defined classes can implement operations invoked
Guido van Rossum <guido@python.org>
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diff
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|
447 if (len < 0) |
|
222f04f55083
Changes so that user-defined classes can implement operations invoked
Guido van Rossum <guido@python.org>
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diff
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|
448 return NULL; |
|
222f04f55083
Changes so that user-defined classes can implement operations invoked
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926
diff
changeset
|
449 else |
|
222f04f55083
Changes so that user-defined classes can implement operations invoked
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diff
changeset
|
450 return newintobject(len); |
| 86 | 451 } |
| 452 | |
| 453 static object * | |
|
223
6693c5d87f3a
Added long() and support for longs in int() and float();
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diff
changeset
|
454 builtin_long(self, v) |
|
6693c5d87f3a
Added long() and support for longs in int() and float();
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diff
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|
455 object *self; |
|
6693c5d87f3a
Added long() and support for longs in int() and float();
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|
456 object *v; |
|
6693c5d87f3a
Added long() and support for longs in int() and float();
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|
457 { |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
458 number_methods *nb; |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
459 |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
Guido van Rossum <guido@python.org>
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changeset
|
460 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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|
461 nb->nb_long == NULL) { |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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|
462 err_setstr(TypeError, |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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|
463 "long() argument can't be converted to long"); |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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|
464 return NULL; |
|
223
6693c5d87f3a
Added long() and support for longs in int() and float();
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diff
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|
465 } |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
466 return (*nb->nb_long)(v); |
|
223
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Added long() and support for longs in int() and float();
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|
467 } |
|
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Added long() and support for longs in int() and float();
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|
468 |
|
6693c5d87f3a
Added long() and support for longs in int() and float();
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|
469 static object * |
| 86 | 470 min_max(v, sign) |
| 471 object *v; | |
| 472 int sign; | |
| 473 { | |
| 474 int i, n, cmp; | |
| 475 object *w, *x; | |
| 476 sequence_methods *sq; | |
| 477 if (v == NULL) { | |
| 478 err_setstr(TypeError, "min() or max() without argument"); | |
| 479 return NULL; | |
| 480 } | |
| 481 sq = v->ob_type->tp_as_sequence; | |
| 482 if (sq == NULL) { | |
| 483 err_setstr(TypeError, "min() or max() of non-sequence"); | |
| 484 return NULL; | |
| 485 } | |
| 486 n = (*sq->sq_length)(v); | |
|
1096
ce718457b172
* classobject.c: in instance_lenth, test result of call_object
Guido van Rossum <guido@python.org>
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diff
changeset
|
487 if (n < 0) |
|
ce718457b172
* classobject.c: in instance_lenth, test result of call_object
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diff
changeset
|
488 return NULL; |
| 86 | 489 if (n == 0) { |
| 463 | 490 err_setstr(ValueError, "min() or max() of empty sequence"); |
| 86 | 491 return NULL; |
| 492 } | |
| 493 w = (*sq->sq_item)(v, 0); /* Implies INCREF */ | |
| 494 for (i = 1; i < n; i++) { | |
| 495 x = (*sq->sq_item)(v, i); /* Implies INCREF */ | |
| 496 cmp = cmpobject(x, w); | |
| 497 if (cmp * sign > 0) { | |
| 498 DECREF(w); | |
| 499 w = x; | |
| 500 } | |
| 501 else | |
| 502 DECREF(x); | |
| 503 } | |
| 504 return w; | |
| 505 } | |
| 506 | |
| 507 static object * | |
| 508 builtin_min(self, v) | |
| 509 object *self; | |
| 510 object *v; | |
| 511 { | |
| 512 return min_max(v, -1); | |
| 513 } | |
| 514 | |
| 515 static object * | |
| 516 builtin_max(self, v) | |
| 517 object *self; | |
| 518 object *v; | |
| 519 { | |
| 520 return min_max(v, 1); | |
| 521 } | |
| 522 | |
| 523 static object * | |
|
404
9cd38d1ac391
Made dir() more robust.
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diff
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|
524 builtin_oct(self, v) |
|
9cd38d1ac391
Made dir() more robust.
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diff
changeset
|
525 object *self; |
|
9cd38d1ac391
Made dir() more robust.
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385
diff
changeset
|
526 object *v; |
|
9cd38d1ac391
Made dir() more robust.
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diff
changeset
|
527 { |
|
1049
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Made builtins int(), long(), float(), oct() and hex() more generic.
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diff
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|
528 number_methods *nb; |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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diff
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|
529 |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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diff
changeset
|
530 if (v == NULL || (nb = v->ob_type->tp_as_number) == NULL || |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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diff
changeset
|
531 nb->nb_oct == NULL) { |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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diff
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|
532 err_setstr(TypeError, |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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diff
changeset
|
533 "oct() argument can't be converted to oct"); |
|
2ed511171809
Made builtins int(), long(), float(), oct() and hex() more generic.
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diff
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|
534 return NULL; |
|
404
9cd38d1ac391
Made dir() more robust.
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parents:
385
diff
changeset
|
535 } |
|
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Made builtins int(), long(), float(), oct() and hex() more generic.
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|
536 return (*nb->nb_oct)(v); |
|
404
9cd38d1ac391
Made dir() more robust.
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diff
changeset
|
537 } |
|
9cd38d1ac391
Made dir() more robust.
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385
diff
changeset
|
538 |
|
9cd38d1ac391
Made dir() more robust.
Guido van Rossum <guido@python.org>
parents:
385
diff
changeset
|
539 static object * |
|
959
68b302ad84a1
use getargs() in more cases;
Guido van Rossum <guido@python.org>
parents:
955
diff
changeset
|
540 builtin_open(self, args) |
| 86 | 541 object *self; |
|
959
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542 object *args; |
| 86 | 543 { |
|
959
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use getargs() in more cases;
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|
544 char *name, *mode; |
|
68b302ad84a1
use getargs() in more cases;
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|
545 if (!getargs(args, "(ss)", &name, &mode)) |
| 86 | 546 return NULL; |
|
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547 return newfileobject(name, mode); |
| 86 | 548 } |
| 549 | |
| 550 static object * | |
|
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|
551 builtin_ord(self, args) |
| 86 | 552 object *self; |
|
959
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|
553 object *args; |
| 86 | 554 { |
|
959
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|
555 char *s; |
|
68b302ad84a1
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|
556 int len; |
|
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|
557 if (!getargs(args, "s#", &s, &len)) |
| 86 | 558 return NULL; |
|
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|
559 if (len != 1) { |
| 463 | 560 err_setstr(ValueError, "ord() arg must have length 1"); |
| 86 | 561 return NULL; |
| 562 } | |
|
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|
563 return newintobject((long)(s[0] & 0xff)); |
| 86 | 564 } |
| 565 | |
| 566 static object * | |
|
301
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|
567 builtin_pow(self, args) |
|
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568 object *self; |
|
301
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|
569 object *args; |
|
223
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Added long() and support for longs in int() and float();
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570 { |
|
301
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571 object *v, *w, *x; |
|
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572 if (!getargs(args, "(OO)", &v, &w)) |
|
223
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573 return NULL; |
|
301
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574 if (v->ob_type->tp_as_number == NULL || |
|
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|
575 w->ob_type->tp_as_number == NULL) { |
|
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576 err_setstr(TypeError, "pow() requires numeric arguments"); |
|
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|
577 return NULL; |
|
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|
578 } |
|
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|
579 if (coerce(&v, &w) != 0) |
|
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|
580 return NULL; |
|
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|
581 x = (*v->ob_type->tp_as_number->nb_power)(v, w); |
|
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|
582 DECREF(v); |
|
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|
583 DECREF(w); |
|
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|
584 return x; |
|
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|
585 } |
|
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Added long() and support for longs in int() and float();
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|
586 |
|
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Added long() and support for longs in int() and float();
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|
587 static object * |
| 86 | 588 builtin_range(self, v) |
| 589 object *self; | |
| 590 object *v; | |
| 591 { | |
| 592 static char *errmsg = "range() requires 1-3 int arguments"; | |
| 593 int i, n; | |
| 594 long ilow, ihigh, istep; | |
| 595 if (v != NULL && is_intobject(v)) { | |
| 596 ilow = 0; ihigh = getintvalue(v); istep = 1; | |
| 597 } | |
| 598 else if (v == NULL || !is_tupleobject(v)) { | |
| 599 err_setstr(TypeError, errmsg); | |
| 600 return NULL; | |
| 601 } | |
| 602 else { | |
| 603 n = gettuplesize(v); | |
| 604 if (n < 1 || n > 3) { | |
| 605 err_setstr(TypeError, errmsg); | |
| 606 return NULL; | |
| 607 } | |
| 608 for (i = 0; i < n; i++) { | |
| 609 if (!is_intobject(gettupleitem(v, i))) { | |
| 610 err_setstr(TypeError, errmsg); | |
| 611 return NULL; | |
| 612 } | |
| 613 } | |
| 614 if (n == 3) { | |
| 615 istep = getintvalue(gettupleitem(v, 2)); | |
| 616 --n; | |
| 617 } | |
| 618 else | |
| 619 istep = 1; | |
| 620 ihigh = getintvalue(gettupleitem(v, --n)); | |
| 621 if (n > 0) | |
| 622 ilow = getintvalue(gettupleitem(v, 0)); | |
| 623 else | |
| 624 ilow = 0; | |
| 625 } | |
| 626 if (istep == 0) { | |
| 463 | 627 err_setstr(ValueError, "zero step for range()"); |
| 86 | 628 return NULL; |
| 629 } | |
| 630 /* XXX ought to check overflow of subtraction */ | |
| 631 if (istep > 0) | |
| 632 n = (ihigh - ilow + istep - 1) / istep; | |
| 633 else | |
| 634 n = (ihigh - ilow + istep + 1) / istep; | |
| 635 if (n < 0) | |
| 636 n = 0; | |
| 637 v = newlistobject(n); | |
| 638 if (v == NULL) | |
| 639 return NULL; | |
| 640 for (i = 0; i < n; i++) { | |
| 641 object *w = newintobject(ilow); | |
| 642 if (w == NULL) { | |
| 643 DECREF(v); | |
| 644 return NULL; | |
| 645 } | |
| 646 setlistitem(v, i, w); | |
| 647 ilow += istep; | |
| 648 } | |
| 649 return v; | |
| 650 } | |
| 651 | |
| 652 static object * | |
| 653 builtin_raw_input(self, v) | |
| 654 object *self; | |
| 655 object *v; | |
| 656 { | |
|
1073
2c0432fcc270
Modified most (but not yet all) I/O to always go through sys.stdout or
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|
657 object *f = sysget("stdout"); |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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diff
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|
658 if (f == NULL) { |
|
2c0432fcc270
Modified most (but not yet all) I/O to always go through sys.stdout or
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diff
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|
659 err_setstr(RuntimeError, "lost sys.stdout"); |
|
2c0432fcc270
Modified most (but not yet all) I/O to always go through sys.stdout or
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|
660 return NULL; |
|
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Modified most (but not yet all) I/O to always go through sys.stdout or
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|
661 } |
| 86 | 662 flushline(); |
|
284
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printobject now returns an error code
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|
663 if (v != NULL) { |
|
1073
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|
664 if (writeobject(v, f, PRINT_RAW) != 0) |
|
284
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|
665 return NULL; |
|
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|
666 } |
|
182
59ffb6d4b34c
Use fileobject's filegetline() to implement unlimited raw_input().
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|
667 return filegetline(sysget("stdin"), -1); |
| 86 | 668 } |
| 669 | |
| 670 static object * | |
| 671 builtin_reload(self, v) | |
| 672 object *self; | |
| 673 object *v; | |
| 674 { | |
| 675 return reload_module(v); | |
| 676 } | |
| 677 | |
| 678 static object * | |
|
1094
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|
679 builtin_repr(self, v) |
|
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|
680 object *self; |
|
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|
681 object *v; |
|
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|
682 { |
|
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|
683 if (v == NULL) { |
|
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|
684 err_badarg(); |
|
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|
685 return NULL; |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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|
686 } |
|
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* config.c: Added audioop to lists.
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|
687 return reprobject(v); |
|
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* config.c: Added audioop to lists.
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|
688 } |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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|
689 |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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changeset
|
690 static object * |
|
1215
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bltinmodule.c: added round(x, [n]); coerce() of two class instances
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diff
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|
691 builtin_round(self, args) |
|
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|
692 object *self; |
|
9d6cf529bb71
bltinmodule.c: added round(x, [n]); coerce() of two class instances
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changeset
|
693 object *args; |
|
9d6cf529bb71
bltinmodule.c: added round(x, [n]); coerce() of two class instances
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|
694 { |
|
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|
695 extern double floor PROTO((double)); |
|
9d6cf529bb71
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|
696 extern double ceil PROTO((double)); |
|
9d6cf529bb71
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|
697 double x; |
|
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|
698 double f; |
|
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|
699 int ndigits = 0; |
|
9d6cf529bb71
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|
700 int sign = 1; |
|
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|
701 int i; |
|
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|
702 if (!getargs(args, "d", &x)) { |
|
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bltinmodule.c: added round(x, [n]); coerce() of two class instances
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|
703 err_clear(); |
|
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|
704 if (!getargs(args, "(di)", &x, &ndigits)) |
|
9d6cf529bb71
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|
705 return NULL; |
|
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|
706 } |
|
9d6cf529bb71
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|
707 f = 1.0; |
|
9d6cf529bb71
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|
708 for (i = ndigits; --i >= 0; ) |
|
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|
709 f = f*10.0; |
|
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|
710 for (i = ndigits; ++i <= 0; ) |
|
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|
711 f = f*0.1; |
|
9d6cf529bb71
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|
712 if (x >= 0.0) |
|
9d6cf529bb71
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|
713 return newfloatobject(floor(x*f + 0.5) / f); |
|
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|
714 else |
|
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|
715 return newfloatobject(ceil(x*f - 0.5) / f); |
|
9d6cf529bb71
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|
716 } |
|
9d6cf529bb71
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|
717 |
|
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|
718 static object * |
|
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|
719 builtin_str(self, v) |
|
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|
720 object *self; |
|
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|
721 object *v; |
|
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* config.c: Added audioop to lists.
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|
722 { |
|
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|
723 if (v == NULL) { |
|
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|
724 err_badarg(); |
|
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|
725 return NULL; |
|
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* config.c: Added audioop to lists.
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|
726 } |
|
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* config.c: Added audioop to lists.
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|
727 if (is_stringobject(v)) { |
|
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* config.c: Added audioop to lists.
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|
728 INCREF(v); |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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|
729 return v; |
|
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|
730 } |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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|
731 else |
|
d2af6bdcb6d0
* config.c: Added audioop to lists.
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|
732 return reprobject(v); |
|
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733 } |
|
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734 |
|
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|
735 static object * |
| 86 | 736 builtin_type(self, v) |
| 737 object *self; | |
| 738 object *v; | |
| 739 { | |
| 740 if (v == NULL) { | |
|
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741 err_setstr(TypeError, "type() requires an argument"); |
| 86 | 742 return NULL; |
| 743 } | |
| 744 v = (object *)v->ob_type; | |
| 745 INCREF(v); | |
| 746 return v; | |
| 747 } | |
| 748 | |
| 749 static struct methodlist builtin_methods[] = { | |
|
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750 {"abs", builtin_abs}, |
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751 {"apply", builtin_apply}, |
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752 {"chr", builtin_chr}, |
|
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753 {"cmp", builtin_cmp}, |
|
944
222f04f55083
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754 {"coerce", builtin_coerce}, |
|
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755 {"compile", builtin_compile}, |
|
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756 {"dir", builtin_dir}, |
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757 {"divmod", builtin_divmod}, |
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758 {"eval", builtin_eval}, |
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759 {"exec", builtin_exec}, |
| 673 | 760 {"execfile", builtin_execfile}, |
|
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761 {"float", builtin_float}, |
|
644
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762 {"getattr", builtin_getattr}, |
|
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763 {"hasattr", builtin_hasattr}, |
|
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764 {"hash", builtin_hash}, |
|
480
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765 {"hex", builtin_hex}, |
|
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766 {"id", builtin_id}, |
|
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767 {"input", builtin_input}, |
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768 {"int", builtin_int}, |
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769 {"len", builtin_len}, |
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770 {"long", builtin_long}, |
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771 {"max", builtin_max}, |
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772 {"min", builtin_min}, |
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773 {"oct", builtin_oct}, |
|
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774 {"open", builtin_open}, |
|
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775 {"ord", builtin_ord}, |
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776 {"pow", builtin_pow}, |
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777 {"range", builtin_range}, |
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778 {"raw_input", builtin_raw_input}, |
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779 {"reload", builtin_reload}, |
|
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780 {"repr", builtin_repr}, |
|
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781 {"round", builtin_round}, |
|
644
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782 {"setattr", builtin_setattr}, |
|
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783 {"str", builtin_str}, |
|
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784 {"type", builtin_type}, |
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|
785 {NULL, NULL}, |
| 86 | 786 }; |
| 787 | |
| 788 static object *builtin_dict; | |
| 789 | |
| 790 object * | |
| 791 getbuiltin(name) | |
|
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792 object *name; |
| 86 | 793 { |
|
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794 return dict2lookup(builtin_dict, name); |
| 86 | 795 } |
| 796 | |
| 797 /* Predefined exceptions */ | |
| 798 | |
|
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799 object *AccessError; |
| 495 | 800 object *AttributeError; |
|
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801 object *ConflictError; |
| 86 | 802 object *EOFError; |
| 495 | 803 object *IOError; |
|
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804 object *ImportError; |
| 495 | 805 object *IndexError; |
| 806 object *KeyError; | |
| 807 object *KeyboardInterrupt; | |
| 86 | 808 object *MemoryError; |
| 809 object *NameError; | |
| 495 | 810 object *OverflowError; |
| 811 object *RuntimeError; | |
| 812 object *SyntaxError; | |
| 86 | 813 object *SystemError; |
| 545 | 814 object *SystemExit; |
| 495 | 815 object *TypeError; |
| 816 object *ValueError; | |
| 463 | 817 object *ZeroDivisionError; |
| 818 | |
| 86 | 819 static object * |
| 495 | 820 newstdexception(name) |
| 821 char *name; | |
| 86 | 822 { |
| 495 | 823 object *v = newstringobject(name); |
| 86 | 824 if (v == NULL || dictinsert(builtin_dict, name, v) != 0) |
| 825 fatal("no mem for new standard exception"); | |
| 826 return v; | |
| 827 } | |
| 828 | |
| 829 static void | |
| 830 initerrors() | |
| 831 { | |
|
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832 AccessError = newstdexception("AccessError"); |
|
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833 AttributeError = newstdexception("AttributeError"); |
|
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834 ConflictError = newstdexception("ConflictError"); |
| 495 | 835 EOFError = newstdexception("EOFError"); |
|
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836 IOError = newstdexception("IOError"); |
|
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837 ImportError = newstdexception("ImportError"); |
|
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838 IndexError = newstdexception("IndexError"); |
|
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|
839 KeyError = newstdexception("KeyError"); |
|
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840 KeyboardInterrupt = newstdexception("KeyboardInterrupt"); |
| 495 | 841 MemoryError = newstdexception("MemoryError"); |
| 842 NameError = newstdexception("NameError"); | |
|
505
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843 OverflowError = newstdexception("OverflowError"); |
|
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844 RuntimeError = newstdexception("RuntimeError"); |
|
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|
845 SyntaxError = newstdexception("SyntaxError"); |
| 495 | 846 SystemError = newstdexception("SystemError"); |
| 545 | 847 SystemExit = newstdexception("SystemExit"); |
|
505
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|
848 TypeError = newstdexception("TypeError"); |
|
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|
849 ValueError = newstdexception("ValueError"); |
| 495 | 850 ZeroDivisionError = newstdexception("ZeroDivisionError"); |
| 86 | 851 } |
| 852 | |
| 853 void | |
| 854 initbuiltin() | |
| 855 { | |
| 856 object *m; | |
| 857 m = initmodule("builtin", builtin_methods); | |
| 858 builtin_dict = getmoduledict(m); | |
| 859 INCREF(builtin_dict); | |
| 860 initerrors(); | |
| 861 (void) dictinsert(builtin_dict, "None", None); | |
| 862 } | |
|
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863 |
|
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864 /* Coerce two numeric types to the "larger" one. |
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865 Increment the reference count on each argument. |
|
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866 Return -1 and raise an exception if no coercion is possible |
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867 (and then no reference count is incremented). |
|
955
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868 */ |
|
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869 |
|
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|
870 int |
|
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871 coerce(pv, pw) |
|
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|
872 object **pv, **pw; |
|
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873 { |
|
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874 register object *v = *pv; |
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875 register object *w = *pw; |
|
955
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|
876 int res; |
|
03de67080c95
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|
877 |
|
1215
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878 if (v->ob_type == w->ob_type && !is_instanceobject(v)) { |
|
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879 INCREF(v); |
|
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880 INCREF(w); |
|
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881 return 0; |
|
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|
882 } |
|
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|
883 if (v->ob_type->tp_as_number && v->ob_type->tp_as_number->nb_coerce) { |
|
03de67080c95
* classobject.[ch], {float,long,int}object.c, bltinmodule.c:
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|
884 res = (*v->ob_type->tp_as_number->nb_coerce)(pv, pw); |
|
03de67080c95
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|
885 if (res <= 0) |
|
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886 return res; |
|
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887 } |
|
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888 if (w->ob_type->tp_as_number && w->ob_type->tp_as_number->nb_coerce) { |
|
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|
889 res = (*w->ob_type->tp_as_number->nb_coerce)(pw, pv); |
|
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890 if (res <= 0) |
|
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891 return res; |
|
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892 } |
|
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893 err_setstr(TypeError, "number coercion failed"); |
|
03de67080c95
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894 return -1; |
|
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895 } |