Mercurial > cpython-lru_cache-weakref
annotate Python/bltinmodule.c @ 941:cd40e3eebb49 legacy-trunk
To ignore a call, cast it to (void), not to (void *)...
| author | Guido van Rossum <guido@python.org> |
|---|---|
| date | Wed, 12 Aug 1992 15:27:32 +0000 |
| parents | c156d4960c2b |
| children | 222f04f55083 |
| rev | line source |
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1 /*********************************************************** |
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2 Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The |
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3 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" | |
| 38 | |
| 39 static object * | |
| 40 builtin_abs(self, v) | |
| 41 object *self; | |
| 42 object *v; | |
| 43 { | |
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44 number_methods *nm; |
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45 if (v == NULL || (nm = v->ob_type->tp_as_number) == NULL) { |
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46 err_setstr(TypeError, "abs() requires numeric argument"); |
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47 return NULL; |
| 86 | 48 } |
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49 return (*nm->nb_absolute)(v); |
| 86 | 50 } |
| 51 | |
| 52 static object * | |
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53 builtin_apply(self, v) |
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54 object *self; |
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55 object *v; |
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56 { |
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57 object *func, *args; |
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58 if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2) { |
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59 err_setstr(TypeError, "apply() requires (func,args)"); |
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60 return NULL; |
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61 } |
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62 func = gettupleitem(v, 0); |
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63 args = gettupleitem(v, 1); |
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64 return call_object(func, args); |
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65 } |
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66 |
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67 static object * |
| 86 | 68 builtin_chr(self, v) |
| 69 object *self; | |
| 70 object *v; | |
| 71 { | |
| 72 long x; | |
| 73 char s[1]; | |
| 74 if (v == NULL || !is_intobject(v)) { | |
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75 err_setstr(TypeError, "chr() requires int argument"); |
| 86 | 76 return NULL; |
| 77 } | |
| 78 x = getintvalue(v); | |
| 79 if (x < 0 || x >= 256) { | |
| 463 | 80 err_setstr(ValueError, "chr() arg not in range(256)"); |
| 86 | 81 return NULL; |
| 82 } | |
| 83 s[0] = x; | |
| 84 return newsizedstringobject(s, 1); | |
| 85 } | |
| 86 | |
| 87 static object * | |
| 88 builtin_dir(self, v) | |
| 89 object *self; | |
| 90 object *v; | |
| 91 { | |
| 92 object *d; | |
| 93 if (v == NULL) { | |
| 94 d = getlocals(); | |
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95 INCREF(d); |
| 86 | 96 } |
| 97 else { | |
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98 d = getattr(v, "__dict__"); |
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99 if (d == NULL) { |
| 86 | 100 err_setstr(TypeError, |
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101 "dir() argument must have __dict__ attribute"); |
| 86 | 102 return NULL; |
| 103 } | |
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104 } |
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105 if (is_dictobject(d)) { |
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106 v = getdictkeys(d); |
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107 if (sortlist(v) != 0) { |
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108 DECREF(v); |
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109 v = NULL; |
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110 } |
| 86 | 111 } |
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112 else { |
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113 v = newlistobject(0); |
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114 } |
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115 DECREF(d); |
| 86 | 116 return v; |
| 117 } | |
| 118 | |
| 119 static object * | |
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120 builtin_divmod(self, args) |
| 86 | 121 object *self; |
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122 object *args; |
| 86 | 123 { |
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124 object *v, *w, *x; |
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125 if (args == NULL || !is_tupleobject(args) || gettuplesize(args) != 2) { |
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126 err_setstr(TypeError, "divmod() requires 2 arguments"); |
| 86 | 127 return NULL; |
| 128 } | |
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129 v = gettupleitem(args, 0); |
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130 w = gettupleitem(args, 1); |
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131 if (v->ob_type->tp_as_number == NULL || |
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132 w->ob_type->tp_as_number == NULL) { |
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133 err_setstr(TypeError, "divmod() requires numeric arguments"); |
| 86 | 134 return NULL; |
| 135 } | |
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136 if (coerce(&v, &w) != 0) |
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137 return NULL; |
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138 x = (*v->ob_type->tp_as_number->nb_divmod)(v, w); |
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139 DECREF(v); |
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140 DECREF(w); |
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141 return x; |
| 86 | 142 } |
| 143 | |
| 144 static object * | |
| 145 exec_eval(v, start) | |
| 146 object *v; | |
| 147 int start; | |
| 148 { | |
| 149 object *str = NULL, *globals = NULL, *locals = NULL; | |
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150 char *s; |
| 86 | 151 int n; |
| 152 if (v != NULL) { | |
| 153 if (is_stringobject(v)) | |
| 154 str = v; | |
| 155 else if (is_tupleobject(v) && | |
| 156 ((n = gettuplesize(v)) == 2 || n == 3)) { | |
| 157 str = gettupleitem(v, 0); | |
| 158 globals = gettupleitem(v, 1); | |
| 159 if (n == 3) | |
| 160 locals = gettupleitem(v, 2); | |
| 161 } | |
| 162 } | |
| 163 if (str == NULL || !is_stringobject(str) || | |
| 164 globals != NULL && !is_dictobject(globals) || | |
| 165 locals != NULL && !is_dictobject(locals)) { | |
| 166 err_setstr(TypeError, | |
| 167 "exec/eval arguments must be string[,dict[,dict]]"); | |
| 168 return NULL; | |
| 169 } | |
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170 s = getstringvalue(str); |
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171 if (start == eval_input) { |
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172 while (*s == ' ' || *s == '\t') |
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173 s++; |
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174 } |
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175 return run_string(s, start, globals, locals); |
| 86 | 176 } |
| 177 | |
| 178 static object * | |
| 179 builtin_eval(self, v) | |
| 180 object *self; | |
| 181 object *v; | |
| 182 { | |
| 183 return exec_eval(v, eval_input); | |
| 184 } | |
| 185 | |
| 186 static object * | |
| 187 builtin_exec(self, v) | |
| 188 object *self; | |
| 189 object *v; | |
| 190 { | |
| 191 return exec_eval(v, file_input); | |
| 192 } | |
| 193 | |
| 194 static object * | |
| 673 | 195 builtin_execfile(self, v) |
| 196 object *self; | |
| 197 object *v; | |
| 198 { | |
| 199 object *str = NULL, *globals = NULL, *locals = NULL, *w; | |
| 200 FILE* fp; | |
| 201 int n; | |
| 202 if (v != NULL) { | |
| 203 if (is_stringobject(v)) | |
| 204 str = v; | |
| 205 else if (is_tupleobject(v) && | |
| 206 ((n = gettuplesize(v)) == 2 || n == 3)) { | |
| 207 str = gettupleitem(v, 0); | |
| 208 globals = gettupleitem(v, 1); | |
| 209 if (n == 3) | |
| 210 locals = gettupleitem(v, 2); | |
| 211 } | |
| 212 } | |
| 213 if (str == NULL || !is_stringobject(str) || | |
| 214 globals != NULL && !is_dictobject(globals) || | |
| 215 locals != NULL && !is_dictobject(locals)) { | |
| 216 err_setstr(TypeError, | |
| 217 "execfile arguments must be filename[,dict[,dict]]"); | |
| 218 return NULL; | |
| 219 } | |
| 926 | 220 BGN_SAVE |
| 673 | 221 fp = fopen(getstringvalue(str), "r"); |
| 926 | 222 END_SAVE |
| 673 | 223 if (fp == NULL) { |
| 224 err_setstr(IOError, "execfile cannot open the file argument"); | |
| 225 return NULL; | |
| 226 } | |
| 227 w = run_file(fp, getstringvalue(str), file_input, globals, locals); | |
| 926 | 228 BGN_SAVE |
| 673 | 229 fclose(fp); |
| 926 | 230 END_SAVE |
| 673 | 231 return w; |
| 232 } | |
| 233 | |
| 234 static object * | |
| 86 | 235 builtin_float(self, v) |
| 236 object *self; | |
| 237 object *v; | |
| 238 { | |
| 239 if (v == NULL) { | |
| 240 /* */ | |
| 241 } | |
|
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242 else if (is_intobject(v)) { |
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243 long x = getintvalue(v); |
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244 return newfloatobject((double)x); |
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245 } |
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246 else if (is_longobject(v)) { |
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247 return newfloatobject(dgetlongvalue(v)); |
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248 } |
| 86 | 249 else if (is_floatobject(v)) { |
| 250 INCREF(v); | |
| 251 return v; | |
| 252 } | |
|
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253 err_setstr(TypeError, "float() argument must be int, long or float"); |
| 86 | 254 return NULL; |
| 255 } | |
| 256 | |
| 257 static object * | |
|
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258 builtin_getattr(self, v) |
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259 object *self; |
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260 object *v; |
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261 { |
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262 object *name; |
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263 if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2 || |
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264 (name = gettupleitem(v, 1), !is_stringobject(name))) { |
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265 err_setstr(TypeError, |
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266 "getattr() arguments must be (object, string)"); |
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267 return NULL; |
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268 } |
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269 return getattr(gettupleitem(v, 0), getstringvalue(name)); |
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270 } |
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271 |
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272 static object * |
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273 builtin_setattr(self, v) |
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274 object *self; |
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275 object *v; |
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276 { |
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277 object *name; |
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278 if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 3 || |
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279 (name = gettupleitem(v, 1), !is_stringobject(name))) { |
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280 err_setstr(TypeError, |
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281 "setattr() arguments must be (object, string, object)"); |
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282 return NULL; |
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283 } |
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284 if (setattr(gettupleitem(v, 0), |
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285 getstringvalue(name), gettupleitem(v, 2)) != 0) |
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286 return NULL; |
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287 INCREF(None); |
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288 return None; |
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289 } |
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290 |
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291 static object * |
|
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292 builtin_hex(self, v) |
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293 object *self; |
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294 object *v; |
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295 { |
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296 if (v != NULL) { |
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297 if (is_intobject(v)) { |
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298 char buf[20]; |
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299 long x = getintvalue(v); |
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300 if (x >= 0) |
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301 sprintf(buf, "0x%lx", x); |
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302 else |
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303 sprintf(buf, "-0x%lx", -x); |
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304 return newstringobject(buf); |
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305 } |
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306 if (is_longobject(v)) { |
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307 return long_format(v, 16); |
|
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308 } |
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309 } |
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310 err_setstr(TypeError, "hex() requires int/long argument"); |
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311 return NULL; |
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312 } |
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313 |
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314 static object * |
| 86 | 315 builtin_input(self, v) |
| 316 object *self; | |
| 317 object *v; | |
| 318 { | |
| 319 FILE *in = sysgetfile("stdin", stdin); | |
| 320 FILE *out = sysgetfile("stdout", stdout); | |
|
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321 int c; |
| 86 | 322 object *m, *d; |
| 323 flushline(); | |
|
284
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324 if (v != NULL) { |
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325 if (printobject(v, out, PRINT_RAW) != 0) |
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326 return NULL; |
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327 } |
| 86 | 328 m = add_module("__main__"); |
| 329 d = getmoduledict(m); | |
| 926 | 330 BGN_SAVE |
|
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331 while ((c = getc(in)) != EOF && (c == ' ' || c == '\t')) |
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332 ; |
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333 ungetc(c, in); |
| 926 | 334 END_SAVE |
| 86 | 335 return run_file(in, "<stdin>", expr_input, d, d); |
| 336 } | |
| 337 | |
| 338 static object * | |
| 339 builtin_int(self, v) | |
| 340 object *self; | |
| 341 object *v; | |
| 342 { | |
| 343 if (v == NULL) { | |
| 344 /* */ | |
| 345 } | |
| 346 else if (is_intobject(v)) { | |
| 347 INCREF(v); | |
| 348 return v; | |
| 349 } | |
|
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350 else if (is_longobject(v)) { |
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351 long x; |
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352 x = getlongvalue(v); |
|
253
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353 if (err_occurred()) |
|
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354 return NULL; |
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355 return newintobject(x); |
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356 } |
| 86 | 357 else if (is_floatobject(v)) { |
| 358 double x = getfloatvalue(v); | |
|
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359 /* XXX should check for overflow */ |
| 86 | 360 return newintobject((long)x); |
| 361 } | |
|
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362 err_setstr(TypeError, "int() argument must be int, long or float"); |
| 86 | 363 return NULL; |
| 364 } | |
| 365 | |
| 366 static object * | |
| 367 builtin_len(self, v) | |
| 368 object *self; | |
| 369 object *v; | |
| 370 { | |
| 371 long len; | |
| 372 typeobject *tp; | |
| 373 if (v == NULL) { | |
| 374 err_setstr(TypeError, "len() without argument"); | |
| 375 return NULL; | |
| 376 } | |
| 377 tp = v->ob_type; | |
| 378 if (tp->tp_as_sequence != NULL) { | |
| 379 len = (*tp->tp_as_sequence->sq_length)(v); | |
| 380 } | |
| 381 else if (tp->tp_as_mapping != NULL) { | |
| 382 len = (*tp->tp_as_mapping->mp_length)(v); | |
| 383 } | |
| 384 else { | |
| 385 err_setstr(TypeError, "len() of unsized object"); | |
| 386 return NULL; | |
| 387 } | |
| 388 return newintobject(len); | |
| 389 } | |
| 390 | |
| 391 static object * | |
|
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392 builtin_long(self, v) |
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393 object *self; |
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394 object *v; |
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395 { |
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396 if (v == NULL) { |
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397 /* */ |
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398 } |
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399 else if (is_intobject(v)) { |
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400 return newlongobject(getintvalue(v)); |
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401 } |
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402 else if (is_longobject(v)) { |
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403 INCREF(v); |
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404 return v; |
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405 } |
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406 else if (is_floatobject(v)) { |
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407 double x = getfloatvalue(v); |
|
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408 return dnewlongobject(x); |
|
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409 } |
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410 err_setstr(TypeError, "long() argument must be int, long or float"); |
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411 return NULL; |
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412 } |
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413 |
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414 static object * |
| 86 | 415 min_max(v, sign) |
| 416 object *v; | |
| 417 int sign; | |
| 418 { | |
| 419 int i, n, cmp; | |
| 420 object *w, *x; | |
| 421 sequence_methods *sq; | |
| 422 if (v == NULL) { | |
| 423 err_setstr(TypeError, "min() or max() without argument"); | |
| 424 return NULL; | |
| 425 } | |
| 426 sq = v->ob_type->tp_as_sequence; | |
| 427 if (sq == NULL) { | |
| 428 err_setstr(TypeError, "min() or max() of non-sequence"); | |
| 429 return NULL; | |
| 430 } | |
| 431 n = (*sq->sq_length)(v); | |
| 432 if (n == 0) { | |
| 463 | 433 err_setstr(ValueError, "min() or max() of empty sequence"); |
| 86 | 434 return NULL; |
| 435 } | |
| 436 w = (*sq->sq_item)(v, 0); /* Implies INCREF */ | |
| 437 for (i = 1; i < n; i++) { | |
| 438 x = (*sq->sq_item)(v, i); /* Implies INCREF */ | |
| 439 cmp = cmpobject(x, w); | |
| 440 if (cmp * sign > 0) { | |
| 441 DECREF(w); | |
| 442 w = x; | |
| 443 } | |
| 444 else | |
| 445 DECREF(x); | |
| 446 } | |
| 447 return w; | |
| 448 } | |
| 449 | |
| 450 static object * | |
| 451 builtin_min(self, v) | |
| 452 object *self; | |
| 453 object *v; | |
| 454 { | |
| 455 return min_max(v, -1); | |
| 456 } | |
| 457 | |
| 458 static object * | |
| 459 builtin_max(self, v) | |
| 460 object *self; | |
| 461 object *v; | |
| 462 { | |
| 463 return min_max(v, 1); | |
| 464 } | |
| 465 | |
| 466 static object * | |
|
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467 builtin_oct(self, v) |
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468 object *self; |
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469 object *v; |
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470 { |
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471 if (v != NULL) { |
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472 if (is_intobject(v)) { |
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473 char buf[20]; |
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474 long x = getintvalue(v); |
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475 if (x >= 0) |
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476 sprintf(buf, "0%lo", x); |
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477 else |
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478 sprintf(buf, "-0%lo", -x); |
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479 return newstringobject(buf); |
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480 } |
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481 if (is_longobject(v)) { |
|
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482 return long_format(v, 8); |
|
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483 } |
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484 } |
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485 err_setstr(TypeError, "oct() requires int/long argument"); |
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486 return NULL; |
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487 } |
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488 |
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489 static object * |
| 86 | 490 builtin_open(self, v) |
| 491 object *self; | |
| 492 object *v; | |
| 493 { | |
| 494 object *name, *mode; | |
| 495 if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2 || | |
| 496 !is_stringobject(name = gettupleitem(v, 0)) || | |
| 497 !is_stringobject(mode = gettupleitem(v, 1))) { | |
| 498 err_setstr(TypeError, "open() requires 2 string arguments"); | |
| 499 return NULL; | |
| 500 } | |
| 501 v = newfileobject(getstringvalue(name), getstringvalue(mode)); | |
| 502 return v; | |
| 503 } | |
| 504 | |
| 505 static object * | |
| 506 builtin_ord(self, v) | |
| 507 object *self; | |
| 508 object *v; | |
| 509 { | |
| 510 if (v == NULL || !is_stringobject(v)) { | |
| 511 err_setstr(TypeError, "ord() must have string argument"); | |
| 512 return NULL; | |
| 513 } | |
| 514 if (getstringsize(v) != 1) { | |
| 463 | 515 err_setstr(ValueError, "ord() arg must have length 1"); |
| 86 | 516 return NULL; |
| 517 } | |
| 518 return newintobject((long)(getstringvalue(v)[0] & 0xff)); | |
| 519 } | |
| 520 | |
| 521 static object * | |
|
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522 builtin_pow(self, args) |
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523 object *self; |
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524 object *args; |
|
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525 { |
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526 object *v, *w, *x; |
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527 if (args == NULL || !is_tupleobject(args) || gettuplesize(args) != 2) { |
|
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528 err_setstr(TypeError, "pow() requires 2 arguments"); |
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529 return NULL; |
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530 } |
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531 v = gettupleitem(args, 0); |
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532 w = gettupleitem(args, 1); |
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533 if (v->ob_type->tp_as_number == NULL || |
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534 w->ob_type->tp_as_number == NULL) { |
|
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535 err_setstr(TypeError, "pow() requires numeric arguments"); |
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536 return NULL; |
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537 } |
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538 if (coerce(&v, &w) != 0) |
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539 return NULL; |
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540 x = (*v->ob_type->tp_as_number->nb_power)(v, w); |
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541 DECREF(v); |
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542 DECREF(w); |
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543 return x; |
|
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544 } |
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545 |
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546 static object * |
| 86 | 547 builtin_range(self, v) |
| 548 object *self; | |
| 549 object *v; | |
| 550 { | |
| 551 static char *errmsg = "range() requires 1-3 int arguments"; | |
| 552 int i, n; | |
| 553 long ilow, ihigh, istep; | |
| 554 if (v != NULL && is_intobject(v)) { | |
| 555 ilow = 0; ihigh = getintvalue(v); istep = 1; | |
| 556 } | |
| 557 else if (v == NULL || !is_tupleobject(v)) { | |
| 558 err_setstr(TypeError, errmsg); | |
| 559 return NULL; | |
| 560 } | |
| 561 else { | |
| 562 n = gettuplesize(v); | |
| 563 if (n < 1 || n > 3) { | |
| 564 err_setstr(TypeError, errmsg); | |
| 565 return NULL; | |
| 566 } | |
| 567 for (i = 0; i < n; i++) { | |
| 568 if (!is_intobject(gettupleitem(v, i))) { | |
| 569 err_setstr(TypeError, errmsg); | |
| 570 return NULL; | |
| 571 } | |
| 572 } | |
| 573 if (n == 3) { | |
| 574 istep = getintvalue(gettupleitem(v, 2)); | |
| 575 --n; | |
| 576 } | |
| 577 else | |
| 578 istep = 1; | |
| 579 ihigh = getintvalue(gettupleitem(v, --n)); | |
| 580 if (n > 0) | |
| 581 ilow = getintvalue(gettupleitem(v, 0)); | |
| 582 else | |
| 583 ilow = 0; | |
| 584 } | |
| 585 if (istep == 0) { | |
| 463 | 586 err_setstr(ValueError, "zero step for range()"); |
| 86 | 587 return NULL; |
| 588 } | |
| 589 /* XXX ought to check overflow of subtraction */ | |
| 590 if (istep > 0) | |
| 591 n = (ihigh - ilow + istep - 1) / istep; | |
| 592 else | |
| 593 n = (ihigh - ilow + istep + 1) / istep; | |
| 594 if (n < 0) | |
| 595 n = 0; | |
| 596 v = newlistobject(n); | |
| 597 if (v == NULL) | |
| 598 return NULL; | |
| 599 for (i = 0; i < n; i++) { | |
| 600 object *w = newintobject(ilow); | |
| 601 if (w == NULL) { | |
| 602 DECREF(v); | |
| 603 return NULL; | |
| 604 } | |
| 605 setlistitem(v, i, w); | |
| 606 ilow += istep; | |
| 607 } | |
| 608 return v; | |
| 609 } | |
| 610 | |
| 611 static object * | |
| 612 builtin_raw_input(self, v) | |
| 613 object *self; | |
| 614 object *v; | |
| 615 { | |
| 616 FILE *out = sysgetfile("stdout", stdout); | |
| 617 flushline(); | |
|
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618 if (v != NULL) { |
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619 if (printobject(v, out, PRINT_RAW) != 0) |
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620 return NULL; |
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621 } |
|
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622 return filegetline(sysget("stdin"), -1); |
| 86 | 623 } |
| 624 | |
| 625 static object * | |
| 626 builtin_reload(self, v) | |
| 627 object *self; | |
| 628 object *v; | |
| 629 { | |
| 630 return reload_module(v); | |
| 631 } | |
| 632 | |
| 633 static object * | |
| 634 builtin_type(self, v) | |
| 635 object *self; | |
| 636 object *v; | |
| 637 { | |
| 638 if (v == NULL) { | |
| 639 err_setstr(TypeError, "type() requres an argument"); | |
| 640 return NULL; | |
| 641 } | |
| 642 v = (object *)v->ob_type; | |
| 643 INCREF(v); | |
| 644 return v; | |
| 645 } | |
| 646 | |
| 647 static struct methodlist builtin_methods[] = { | |
|
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648 {"abs", builtin_abs}, |
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649 {"apply", builtin_apply}, |
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650 {"chr", builtin_chr}, |
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651 {"dir", builtin_dir}, |
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652 {"divmod", builtin_divmod}, |
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653 {"eval", builtin_eval}, |
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654 {"exec", builtin_exec}, |
| 673 | 655 {"execfile", builtin_execfile}, |
|
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656 {"float", builtin_float}, |
|
644
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657 {"getattr", builtin_getattr}, |
|
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658 {"hex", builtin_hex}, |
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659 {"input", builtin_input}, |
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660 {"int", builtin_int}, |
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661 {"len", builtin_len}, |
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662 {"long", builtin_long}, |
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663 {"max", builtin_max}, |
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664 {"min", builtin_min}, |
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665 {"oct", builtin_oct}, |
|
662
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666 {"open", builtin_open}, |
|
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667 {"ord", builtin_ord}, |
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668 {"pow", builtin_pow}, |
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669 {"range", builtin_range}, |
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670 {"raw_input", builtin_raw_input}, |
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671 {"reload", builtin_reload}, |
|
644
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672 {"setattr", builtin_setattr}, |
|
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673 {"type", builtin_type}, |
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674 {NULL, NULL}, |
| 86 | 675 }; |
| 676 | |
| 677 static object *builtin_dict; | |
| 678 | |
| 679 object * | |
| 680 getbuiltin(name) | |
|
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681 object *name; |
| 86 | 682 { |
|
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683 return dict2lookup(builtin_dict, name); |
| 86 | 684 } |
| 685 | |
| 686 /* Predefined exceptions */ | |
| 687 | |
| 495 | 688 object *AttributeError; |
| 86 | 689 object *EOFError; |
| 495 | 690 object *IOError; |
|
505
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691 object *ImportError; |
| 495 | 692 object *IndexError; |
| 693 object *KeyError; | |
| 694 object *KeyboardInterrupt; | |
| 86 | 695 object *MemoryError; |
| 696 object *NameError; | |
| 495 | 697 object *OverflowError; |
| 698 object *RuntimeError; | |
| 699 object *SyntaxError; | |
| 86 | 700 object *SystemError; |
| 545 | 701 object *SystemExit; |
| 495 | 702 object *TypeError; |
| 703 object *ValueError; | |
| 463 | 704 object *ZeroDivisionError; |
| 705 | |
| 86 | 706 static object * |
| 495 | 707 newstdexception(name) |
| 708 char *name; | |
| 86 | 709 { |
| 495 | 710 object *v = newstringobject(name); |
| 86 | 711 if (v == NULL || dictinsert(builtin_dict, name, v) != 0) |
| 712 fatal("no mem for new standard exception"); | |
| 713 return v; | |
| 714 } | |
| 715 | |
| 716 static void | |
| 717 initerrors() | |
| 718 { | |
|
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719 AttributeError = newstdexception("AttributeError"); |
| 495 | 720 EOFError = newstdexception("EOFError"); |
|
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721 IOError = newstdexception("IOError"); |
|
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722 ImportError = newstdexception("ImportError"); |
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723 IndexError = newstdexception("IndexError"); |
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724 KeyError = newstdexception("KeyError"); |
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725 KeyboardInterrupt = newstdexception("KeyboardInterrupt"); |
| 495 | 726 MemoryError = newstdexception("MemoryError"); |
| 727 NameError = newstdexception("NameError"); | |
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728 OverflowError = newstdexception("OverflowError"); |
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729 RuntimeError = newstdexception("RuntimeError"); |
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730 SyntaxError = newstdexception("SyntaxError"); |
| 495 | 731 SystemError = newstdexception("SystemError"); |
| 545 | 732 SystemExit = newstdexception("SystemExit"); |
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733 TypeError = newstdexception("TypeError"); |
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734 ValueError = newstdexception("ValueError"); |
| 495 | 735 ZeroDivisionError = newstdexception("ZeroDivisionError"); |
| 86 | 736 } |
| 737 | |
| 738 void | |
| 739 initbuiltin() | |
| 740 { | |
| 741 object *m; | |
| 742 m = initmodule("builtin", builtin_methods); | |
| 743 builtin_dict = getmoduledict(m); | |
| 744 INCREF(builtin_dict); | |
| 745 initerrors(); | |
| 746 (void) dictinsert(builtin_dict, "None", None); | |
| 747 } | |
|
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748 |
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749 /* Coerce two numeric types to the "larger" one. |
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750 Increment the reference count on each argument. |
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751 Return -1 and raise an exception if no coercion is possible |
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752 (and then no reference count is incremented). |
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753 XXX This should be distributed over the various numeric types, |
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754 XXX but for now I don't see how to implement that. |
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755 XXX So, for now, if you add a new numeric type, |
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756 XXX you must add to this function as well. */ |
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757 |
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758 int |
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759 coerce(pv, pw) |
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760 object **pv, **pw; |
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761 { |
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762 register object *v = *pv; |
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763 register object *w = *pw; |
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764 if (v->ob_type == w->ob_type) { |
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765 INCREF(v); |
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766 INCREF(w); |
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767 return 0; |
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768 } |
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769 if (v->ob_type->tp_as_number == NULL || |
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770 w->ob_type->tp_as_number == NULL) { |
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771 err_setstr(TypeError, "mixing number and non-number"); |
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772 return -1; |
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773 } |
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774 if (is_floatobject(v) || is_floatobject(w)) { |
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775 v = builtin_float((object *)0, v); |
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776 w = builtin_float((object *)0, w); |
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777 } |
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778 else if (is_longobject(v) || is_longobject(w)) { |
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779 v = builtin_long((object *)0, v); |
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780 w = builtin_long((object *)0, w); |
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781 } |
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782 else { |
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783 err_setstr(TypeError, "can't coerce numeric types?!?!?"); |
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784 return -1; |
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785 } |
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786 if (v == NULL || w == NULL) { |
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787 XDECREF(v); |
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788 XDECREF(w); |
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789 return -1; |
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790 } |
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791 *pv = v; |
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792 *pw = w; |
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793 return 0; |
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794 } |