Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
| 2 | Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The |
| 3 | Netherlands. |
| 4 | |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
| 9 | provided that the above copyright notice appear in all copies and that |
| 10 | both that copyright notice and this permission notice appear in |
| 11 | supporting documentation, and that the names of Stichting Mathematisch |
| 12 | Centrum or CWI not be used in advertising or publicity pertaining to |
| 13 | distribution of the software without specific, written prior permission. |
| 14 | |
| 15 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| 16 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 17 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
| 18 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 19 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 20 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 21 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 22 | |
| 23 | ******************************************************************/ |
| 24 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 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" |
Guido van Rossum | 86cd6e6 | 1991-01-21 15:12:35 +0000 | [diff] [blame] | 33 | #include "bltinmodule.h" |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 34 | #include "import.h" |
| 35 | #include "pythonrun.h" |
| 36 | #include "compile.h" /* For ceval.h */ |
| 37 | #include "ceval.h" |
| 38 | #include "modsupport.h" |
| 39 | |
| 40 | static object * |
| 41 | builtin_abs(self, v) |
| 42 | object *self; |
| 43 | object *v; |
| 44 | { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 45 | number_methods *nm; |
| 46 | if (v == NULL || (nm = v->ob_type->tp_as_number) == NULL) { |
| 47 | err_setstr(TypeError, "abs() requires numeric argument"); |
| 48 | return NULL; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 49 | } |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 50 | return (*nm->nb_absolute)(v); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | static object * |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 54 | builtin_apply(self, v) |
| 55 | object *self; |
| 56 | object *v; |
| 57 | { |
| 58 | object *func, *args; |
| 59 | if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2) { |
| 60 | err_setstr(TypeError, "apply() requires (func,args)"); |
| 61 | return NULL; |
| 62 | } |
| 63 | func = gettupleitem(v, 0); |
| 64 | args = gettupleitem(v, 1); |
| 65 | return call_object(func, args); |
| 66 | } |
| 67 | |
| 68 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 69 | builtin_chr(self, v) |
| 70 | object *self; |
| 71 | object *v; |
| 72 | { |
| 73 | long x; |
| 74 | char s[1]; |
| 75 | if (v == NULL || !is_intobject(v)) { |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 76 | err_setstr(TypeError, "chr() requires int argument"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 77 | return NULL; |
| 78 | } |
| 79 | x = getintvalue(v); |
| 80 | if (x < 0 || x >= 256) { |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 81 | err_setstr(ValueError, "chr() arg not in range(256)"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 82 | return NULL; |
| 83 | } |
| 84 | s[0] = x; |
| 85 | return newsizedstringobject(s, 1); |
| 86 | } |
| 87 | |
| 88 | static object * |
| 89 | builtin_dir(self, v) |
| 90 | object *self; |
| 91 | object *v; |
| 92 | { |
| 93 | object *d; |
| 94 | if (v == NULL) { |
| 95 | d = getlocals(); |
Guido van Rossum | dc8a108 | 1991-10-20 20:11:03 +0000 | [diff] [blame] | 96 | INCREF(d); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 97 | } |
| 98 | else { |
Guido van Rossum | dc8a108 | 1991-10-20 20:11:03 +0000 | [diff] [blame] | 99 | d = getattr(v, "__dict__"); |
| 100 | if (d == NULL) { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 101 | err_setstr(TypeError, |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 102 | "dir() argument must have __dict__ attribute"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 103 | return NULL; |
| 104 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 105 | } |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 106 | if (is_dictobject(d)) { |
Guido van Rossum | dc8a108 | 1991-10-20 20:11:03 +0000 | [diff] [blame] | 107 | v = getdictkeys(d); |
| 108 | if (sortlist(v) != 0) { |
| 109 | DECREF(v); |
| 110 | v = NULL; |
| 111 | } |
| 112 | } |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 113 | else { |
| 114 | v = newlistobject(0); |
| 115 | } |
Guido van Rossum | dc8a108 | 1991-10-20 20:11:03 +0000 | [diff] [blame] | 116 | DECREF(d); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 117 | return v; |
| 118 | } |
| 119 | |
| 120 | static object * |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 121 | builtin_divmod(self, args) |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 122 | object *self; |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 123 | object *args; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 124 | { |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 125 | object *v, *w, *x; |
| 126 | if (args == NULL || !is_tupleobject(args) || gettuplesize(args) != 2) { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 127 | err_setstr(TypeError, "divmod() requires 2 arguments"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 128 | return NULL; |
| 129 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 130 | v = gettupleitem(args, 0); |
| 131 | w = gettupleitem(args, 1); |
| 132 | if (v->ob_type->tp_as_number == NULL || |
| 133 | w->ob_type->tp_as_number == NULL) { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 134 | err_setstr(TypeError, "divmod() requires numeric arguments"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 135 | return NULL; |
| 136 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 137 | if (coerce(&v, &w) != 0) |
| 138 | return NULL; |
| 139 | x = (*v->ob_type->tp_as_number->nb_divmod)(v, w); |
| 140 | DECREF(v); |
| 141 | DECREF(w); |
| 142 | return x; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 143 | } |
| 144 | |
| 145 | static object * |
| 146 | exec_eval(v, start) |
| 147 | object *v; |
| 148 | int start; |
| 149 | { |
| 150 | object *str = NULL, *globals = NULL, *locals = NULL; |
| 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 | } |
| 170 | return run_string(getstringvalue(str), start, globals, locals); |
| 171 | } |
| 172 | |
| 173 | static object * |
| 174 | builtin_eval(self, v) |
| 175 | object *self; |
| 176 | object *v; |
| 177 | { |
| 178 | return exec_eval(v, eval_input); |
| 179 | } |
| 180 | |
| 181 | static object * |
| 182 | builtin_exec(self, v) |
| 183 | object *self; |
| 184 | object *v; |
| 185 | { |
| 186 | return exec_eval(v, file_input); |
| 187 | } |
| 188 | |
| 189 | static object * |
| 190 | builtin_float(self, v) |
| 191 | object *self; |
| 192 | object *v; |
| 193 | { |
| 194 | if (v == NULL) { |
| 195 | /* */ |
| 196 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 197 | else if (is_intobject(v)) { |
| 198 | long x = getintvalue(v); |
| 199 | return newfloatobject((double)x); |
| 200 | } |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 201 | else if (is_longobject(v)) { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 202 | return newfloatobject(dgetlongvalue(v)); |
| 203 | } |
| 204 | else if (is_floatobject(v)) { |
| 205 | INCREF(v); |
| 206 | return v; |
| 207 | } |
| 208 | err_setstr(TypeError, "float() argument must be int, long or float"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 209 | return NULL; |
| 210 | } |
| 211 | |
| 212 | static object * |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 213 | builtin_hex(self, v) |
| 214 | object *self; |
| 215 | object *v; |
| 216 | { |
| 217 | if (v != NULL) { |
| 218 | if (is_intobject(v)) { |
| 219 | char buf[20]; |
| 220 | long x = getintvalue(v); |
| 221 | if (x >= 0) |
| 222 | sprintf(buf, "0x%lx", x); |
| 223 | else |
| 224 | sprintf(buf, "-0x%lx", -x); |
| 225 | return newstringobject(buf); |
| 226 | } |
| 227 | if (is_longobject(v)) { |
Guido van Rossum | 6d80647 | 1992-01-19 16:25:49 +0000 | [diff] [blame] | 228 | return long_format(v, 16); |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 229 | } |
| 230 | } |
| 231 | err_setstr(TypeError, "hex() requires int/long argument"); |
| 232 | return NULL; |
| 233 | } |
| 234 | |
| 235 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 236 | builtin_input(self, v) |
| 237 | object *self; |
| 238 | object *v; |
| 239 | { |
| 240 | FILE *in = sysgetfile("stdin", stdin); |
| 241 | FILE *out = sysgetfile("stdout", stdout); |
| 242 | node *n; |
| 243 | int err; |
| 244 | object *m, *d; |
| 245 | flushline(); |
Guido van Rossum | 9093361 | 1991-06-07 16:10:43 +0000 | [diff] [blame] | 246 | if (v != NULL) { |
| 247 | if (printobject(v, out, PRINT_RAW) != 0) |
| 248 | return NULL; |
| 249 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 250 | m = add_module("__main__"); |
| 251 | d = getmoduledict(m); |
| 252 | return run_file(in, "<stdin>", expr_input, d, d); |
| 253 | } |
| 254 | |
| 255 | static object * |
| 256 | builtin_int(self, v) |
| 257 | object *self; |
| 258 | object *v; |
| 259 | { |
| 260 | if (v == NULL) { |
| 261 | /* */ |
| 262 | } |
| 263 | else if (is_intobject(v)) { |
| 264 | INCREF(v); |
| 265 | return v; |
| 266 | } |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 267 | else if (is_longobject(v)) { |
| 268 | long x; |
| 269 | x = getlongvalue(v); |
Guido van Rossum | ad40531 | 1991-06-03 10:58:01 +0000 | [diff] [blame] | 270 | if (err_occurred()) |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 271 | return NULL; |
| 272 | return newintobject(x); |
| 273 | } |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 274 | else if (is_floatobject(v)) { |
| 275 | double x = getfloatvalue(v); |
Guido van Rossum | ad40531 | 1991-06-03 10:58:01 +0000 | [diff] [blame] | 276 | /* XXX should check for overflow */ |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 277 | return newintobject((long)x); |
| 278 | } |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 279 | err_setstr(TypeError, "int() argument must be int, long or float"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 280 | return NULL; |
| 281 | } |
| 282 | |
| 283 | static object * |
| 284 | builtin_len(self, v) |
| 285 | object *self; |
| 286 | object *v; |
| 287 | { |
| 288 | long len; |
| 289 | typeobject *tp; |
| 290 | if (v == NULL) { |
| 291 | err_setstr(TypeError, "len() without argument"); |
| 292 | return NULL; |
| 293 | } |
| 294 | tp = v->ob_type; |
| 295 | if (tp->tp_as_sequence != NULL) { |
| 296 | len = (*tp->tp_as_sequence->sq_length)(v); |
| 297 | } |
| 298 | else if (tp->tp_as_mapping != NULL) { |
| 299 | len = (*tp->tp_as_mapping->mp_length)(v); |
| 300 | } |
| 301 | else { |
| 302 | err_setstr(TypeError, "len() of unsized object"); |
| 303 | return NULL; |
| 304 | } |
| 305 | return newintobject(len); |
| 306 | } |
| 307 | |
| 308 | static object * |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 309 | builtin_long(self, v) |
| 310 | object *self; |
| 311 | object *v; |
| 312 | { |
| 313 | if (v == NULL) { |
| 314 | /* */ |
| 315 | } |
| 316 | else if (is_intobject(v)) { |
| 317 | return newlongobject(getintvalue(v)); |
| 318 | } |
| 319 | else if (is_longobject(v)) { |
| 320 | INCREF(v); |
| 321 | return v; |
| 322 | } |
| 323 | else if (is_floatobject(v)) { |
| 324 | double x = getfloatvalue(v); |
Guido van Rossum | ad40531 | 1991-06-03 10:58:01 +0000 | [diff] [blame] | 325 | return dnewlongobject(x); |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 326 | } |
| 327 | err_setstr(TypeError, "long() argument must be int, long or float"); |
| 328 | return NULL; |
| 329 | } |
| 330 | |
| 331 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 332 | min_max(v, sign) |
| 333 | object *v; |
| 334 | int sign; |
| 335 | { |
| 336 | int i, n, cmp; |
| 337 | object *w, *x; |
| 338 | sequence_methods *sq; |
| 339 | if (v == NULL) { |
| 340 | err_setstr(TypeError, "min() or max() without argument"); |
| 341 | return NULL; |
| 342 | } |
| 343 | sq = v->ob_type->tp_as_sequence; |
| 344 | if (sq == NULL) { |
| 345 | err_setstr(TypeError, "min() or max() of non-sequence"); |
| 346 | return NULL; |
| 347 | } |
| 348 | n = (*sq->sq_length)(v); |
| 349 | if (n == 0) { |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 350 | err_setstr(ValueError, "min() or max() of empty sequence"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 351 | return NULL; |
| 352 | } |
| 353 | w = (*sq->sq_item)(v, 0); /* Implies INCREF */ |
| 354 | for (i = 1; i < n; i++) { |
| 355 | x = (*sq->sq_item)(v, i); /* Implies INCREF */ |
| 356 | cmp = cmpobject(x, w); |
| 357 | if (cmp * sign > 0) { |
| 358 | DECREF(w); |
| 359 | w = x; |
| 360 | } |
| 361 | else |
| 362 | DECREF(x); |
| 363 | } |
| 364 | return w; |
| 365 | } |
| 366 | |
| 367 | static object * |
| 368 | builtin_min(self, v) |
| 369 | object *self; |
| 370 | object *v; |
| 371 | { |
| 372 | return min_max(v, -1); |
| 373 | } |
| 374 | |
| 375 | static object * |
| 376 | builtin_max(self, v) |
| 377 | object *self; |
| 378 | object *v; |
| 379 | { |
| 380 | return min_max(v, 1); |
| 381 | } |
| 382 | |
| 383 | static object * |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 384 | builtin_oct(self, v) |
| 385 | object *self; |
| 386 | object *v; |
| 387 | { |
| 388 | if (v != NULL) { |
| 389 | if (is_intobject(v)) { |
| 390 | char buf[20]; |
| 391 | long x = getintvalue(v); |
| 392 | if (x >= 0) |
| 393 | sprintf(buf, "0%lo", x); |
| 394 | else |
| 395 | sprintf(buf, "-0%lo", -x); |
| 396 | return newstringobject(buf); |
| 397 | } |
| 398 | if (is_longobject(v)) { |
Guido van Rossum | 6d80647 | 1992-01-19 16:25:49 +0000 | [diff] [blame] | 399 | return long_format(v, 8); |
Guido van Rossum | 006bcd4 | 1991-10-24 14:54:44 +0000 | [diff] [blame] | 400 | } |
| 401 | } |
| 402 | err_setstr(TypeError, "oct() requires int/long argument"); |
| 403 | return NULL; |
| 404 | } |
| 405 | |
| 406 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 407 | builtin_open(self, v) |
| 408 | object *self; |
| 409 | object *v; |
| 410 | { |
| 411 | object *name, *mode; |
| 412 | if (v == NULL || !is_tupleobject(v) || gettuplesize(v) != 2 || |
| 413 | !is_stringobject(name = gettupleitem(v, 0)) || |
| 414 | !is_stringobject(mode = gettupleitem(v, 1))) { |
| 415 | err_setstr(TypeError, "open() requires 2 string arguments"); |
| 416 | return NULL; |
| 417 | } |
| 418 | v = newfileobject(getstringvalue(name), getstringvalue(mode)); |
| 419 | return v; |
| 420 | } |
| 421 | |
| 422 | static object * |
| 423 | builtin_ord(self, v) |
| 424 | object *self; |
| 425 | object *v; |
| 426 | { |
| 427 | if (v == NULL || !is_stringobject(v)) { |
| 428 | err_setstr(TypeError, "ord() must have string argument"); |
| 429 | return NULL; |
| 430 | } |
| 431 | if (getstringsize(v) != 1) { |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 432 | err_setstr(ValueError, "ord() arg must have length 1"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 433 | return NULL; |
| 434 | } |
| 435 | return newintobject((long)(getstringvalue(v)[0] & 0xff)); |
| 436 | } |
| 437 | |
| 438 | static object * |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 439 | builtin_pow(self, args) |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 440 | object *self; |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 441 | object *args; |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 442 | { |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 443 | object *v, *w, *x; |
| 444 | if (args == NULL || !is_tupleobject(args) || gettuplesize(args) != 2) { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 445 | err_setstr(TypeError, "pow() requires 2 arguments"); |
| 446 | return NULL; |
| 447 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 448 | v = gettupleitem(args, 0); |
| 449 | w = gettupleitem(args, 1); |
| 450 | if (v->ob_type->tp_as_number == NULL || |
| 451 | w->ob_type->tp_as_number == NULL) { |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 452 | err_setstr(TypeError, "pow() requires numeric arguments"); |
| 453 | return NULL; |
| 454 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 455 | if (coerce(&v, &w) != 0) |
| 456 | return NULL; |
| 457 | x = (*v->ob_type->tp_as_number->nb_power)(v, w); |
| 458 | DECREF(v); |
| 459 | DECREF(w); |
| 460 | return x; |
Guido van Rossum | d490545 | 1991-05-05 20:00:36 +0000 | [diff] [blame] | 461 | } |
| 462 | |
| 463 | static object * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 464 | builtin_range(self, v) |
| 465 | object *self; |
| 466 | object *v; |
| 467 | { |
| 468 | static char *errmsg = "range() requires 1-3 int arguments"; |
| 469 | int i, n; |
| 470 | long ilow, ihigh, istep; |
| 471 | if (v != NULL && is_intobject(v)) { |
| 472 | ilow = 0; ihigh = getintvalue(v); istep = 1; |
| 473 | } |
| 474 | else if (v == NULL || !is_tupleobject(v)) { |
| 475 | err_setstr(TypeError, errmsg); |
| 476 | return NULL; |
| 477 | } |
| 478 | else { |
| 479 | n = gettuplesize(v); |
| 480 | if (n < 1 || n > 3) { |
| 481 | err_setstr(TypeError, errmsg); |
| 482 | return NULL; |
| 483 | } |
| 484 | for (i = 0; i < n; i++) { |
| 485 | if (!is_intobject(gettupleitem(v, i))) { |
| 486 | err_setstr(TypeError, errmsg); |
| 487 | return NULL; |
| 488 | } |
| 489 | } |
| 490 | if (n == 3) { |
| 491 | istep = getintvalue(gettupleitem(v, 2)); |
| 492 | --n; |
| 493 | } |
| 494 | else |
| 495 | istep = 1; |
| 496 | ihigh = getintvalue(gettupleitem(v, --n)); |
| 497 | if (n > 0) |
| 498 | ilow = getintvalue(gettupleitem(v, 0)); |
| 499 | else |
| 500 | ilow = 0; |
| 501 | } |
| 502 | if (istep == 0) { |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 503 | err_setstr(ValueError, "zero step for range()"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 504 | return NULL; |
| 505 | } |
| 506 | /* XXX ought to check overflow of subtraction */ |
| 507 | if (istep > 0) |
| 508 | n = (ihigh - ilow + istep - 1) / istep; |
| 509 | else |
| 510 | n = (ihigh - ilow + istep + 1) / istep; |
| 511 | if (n < 0) |
| 512 | n = 0; |
| 513 | v = newlistobject(n); |
| 514 | if (v == NULL) |
| 515 | return NULL; |
| 516 | for (i = 0; i < n; i++) { |
| 517 | object *w = newintobject(ilow); |
| 518 | if (w == NULL) { |
| 519 | DECREF(v); |
| 520 | return NULL; |
| 521 | } |
| 522 | setlistitem(v, i, w); |
| 523 | ilow += istep; |
| 524 | } |
| 525 | return v; |
| 526 | } |
| 527 | |
| 528 | static object * |
| 529 | builtin_raw_input(self, v) |
| 530 | object *self; |
| 531 | object *v; |
| 532 | { |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 533 | FILE *out = sysgetfile("stdout", stdout); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 534 | flushline(); |
Guido van Rossum | 9093361 | 1991-06-07 16:10:43 +0000 | [diff] [blame] | 535 | if (v != NULL) { |
| 536 | if (printobject(v, out, PRINT_RAW) != 0) |
| 537 | return NULL; |
| 538 | } |
Guido van Rossum | 26203aa | 1991-04-04 15:20:41 +0000 | [diff] [blame] | 539 | return filegetline(sysget("stdin"), -1); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 540 | } |
| 541 | |
| 542 | static object * |
| 543 | builtin_reload(self, v) |
| 544 | object *self; |
| 545 | object *v; |
| 546 | { |
| 547 | return reload_module(v); |
| 548 | } |
| 549 | |
| 550 | static object * |
| 551 | builtin_type(self, v) |
| 552 | object *self; |
| 553 | object *v; |
| 554 | { |
| 555 | if (v == NULL) { |
| 556 | err_setstr(TypeError, "type() requres an argument"); |
| 557 | return NULL; |
| 558 | } |
| 559 | v = (object *)v->ob_type; |
| 560 | INCREF(v); |
| 561 | return v; |
| 562 | } |
| 563 | |
| 564 | static struct methodlist builtin_methods[] = { |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 565 | {"abs", builtin_abs}, |
| 566 | {"apply", builtin_apply}, |
| 567 | {"chr", builtin_chr}, |
| 568 | {"dir", builtin_dir}, |
| 569 | {"divmod", builtin_divmod}, |
| 570 | {"eval", builtin_eval}, |
| 571 | {"exec", builtin_exec}, |
| 572 | {"float", builtin_float}, |
| 573 | {"hex", builtin_hex}, |
| 574 | {"input", builtin_input}, |
| 575 | {"int", builtin_int}, |
| 576 | {"len", builtin_len}, |
| 577 | {"long", builtin_long}, |
| 578 | {"max", builtin_max}, |
| 579 | {"min", builtin_min}, |
| 580 | {"oct", builtin_oct}, |
| 581 | {"open", builtin_open}, /* XXX move to OS module */ |
| 582 | {"ord", builtin_ord}, |
| 583 | {"pow", builtin_pow}, |
| 584 | {"range", builtin_range}, |
| 585 | {"raw_input", builtin_raw_input}, |
| 586 | {"reload", builtin_reload}, |
| 587 | {"type", builtin_type}, |
| 588 | {NULL, NULL}, |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 589 | }; |
| 590 | |
| 591 | static object *builtin_dict; |
| 592 | |
| 593 | object * |
| 594 | getbuiltin(name) |
Guido van Rossum | a57fb01 | 1991-08-16 08:54:58 +0000 | [diff] [blame] | 595 | object *name; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 596 | { |
Guido van Rossum | a57fb01 | 1991-08-16 08:54:58 +0000 | [diff] [blame] | 597 | return dict2lookup(builtin_dict, name); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 598 | } |
| 599 | |
| 600 | /* Predefined exceptions */ |
| 601 | |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 602 | object *AttributeError; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 603 | object *EOFError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 604 | object *IOError; |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 605 | object *ImportError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 606 | object *IndexError; |
| 607 | object *KeyError; |
| 608 | object *KeyboardInterrupt; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 609 | object *MemoryError; |
| 610 | object *NameError; |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 611 | object *OverflowError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 612 | object *RuntimeError; |
Guido van Rossum | c02e15c | 1991-12-16 13:03:00 +0000 | [diff] [blame] | 613 | object *SyntaxError; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 614 | object *SystemError; |
Guido van Rossum | 768a3f0 | 1991-12-31 13:13:47 +0000 | [diff] [blame] | 615 | object *SystemExit; |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 616 | object *TypeError; |
| 617 | object *ValueError; |
| 618 | object *ZeroDivisionError; |
Guido van Rossum | 50afb7a | 1991-12-10 13:52:31 +0000 | [diff] [blame] | 619 | |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 620 | static object * |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 621 | newstdexception(name) |
| 622 | char *name; |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 623 | { |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 624 | object *v = newstringobject(name); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 625 | if (v == NULL || dictinsert(builtin_dict, name, v) != 0) |
| 626 | fatal("no mem for new standard exception"); |
| 627 | return v; |
| 628 | } |
| 629 | |
| 630 | static void |
| 631 | initerrors() |
| 632 | { |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 633 | AttributeError = newstdexception("AttributeError"); |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 634 | EOFError = newstdexception("EOFError"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 635 | IOError = newstdexception("IOError"); |
| 636 | ImportError = newstdexception("ImportError"); |
| 637 | IndexError = newstdexception("IndexError"); |
| 638 | KeyError = newstdexception("KeyError"); |
| 639 | KeyboardInterrupt = newstdexception("KeyboardInterrupt"); |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 640 | MemoryError = newstdexception("MemoryError"); |
| 641 | NameError = newstdexception("NameError"); |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 642 | OverflowError = newstdexception("OverflowError"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 643 | RuntimeError = newstdexception("RuntimeError"); |
Guido van Rossum | fb905c3 | 1991-12-16 15:42:38 +0000 | [diff] [blame] | 644 | SyntaxError = newstdexception("SyntaxError"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 645 | SystemError = newstdexception("SystemError"); |
Guido van Rossum | 768a3f0 | 1991-12-31 13:13:47 +0000 | [diff] [blame] | 646 | SystemExit = newstdexception("SystemExit"); |
Guido van Rossum | ed7711b | 1991-12-24 13:24:53 +0000 | [diff] [blame] | 647 | TypeError = newstdexception("TypeError"); |
| 648 | ValueError = newstdexception("ValueError"); |
| 649 | ZeroDivisionError = newstdexception("ZeroDivisionError"); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 650 | } |
| 651 | |
| 652 | void |
| 653 | initbuiltin() |
| 654 | { |
| 655 | object *m; |
| 656 | m = initmodule("builtin", builtin_methods); |
| 657 | builtin_dict = getmoduledict(m); |
| 658 | INCREF(builtin_dict); |
| 659 | initerrors(); |
| 660 | (void) dictinsert(builtin_dict, "None", None); |
| 661 | } |
Guido van Rossum | c6bb8f7 | 1991-07-01 18:42:41 +0000 | [diff] [blame] | 662 | |
| 663 | /* Coerce two numeric types to the "larger" one. |
| 664 | Increment the reference count on each argument. |
| 665 | Return -1 and raise an exception if no coercion is possible |
| 666 | (and then no reference count is incremented). |
| 667 | XXX This should be distributed over the various numeric types, |
| 668 | XXX but for now I don't see how to implement that. |
| 669 | XXX So, for now, if you add a new numeric type, |
| 670 | XXX you must add to this function as well. */ |
| 671 | |
| 672 | int |
| 673 | coerce(pv, pw) |
| 674 | object **pv, **pw; |
| 675 | { |
| 676 | register object *v = *pv; |
| 677 | register object *w = *pw; |
| 678 | if (v->ob_type == w->ob_type) { |
| 679 | INCREF(v); |
| 680 | INCREF(w); |
| 681 | return 0; |
| 682 | } |
| 683 | if (v->ob_type->tp_as_number == NULL || |
| 684 | w->ob_type->tp_as_number == NULL) { |
| 685 | err_setstr(TypeError, "mixing number and non-number"); |
| 686 | return -1; |
| 687 | } |
| 688 | if (is_floatobject(v) || is_floatobject(w)) { |
| 689 | v = builtin_float((object *)0, v); |
| 690 | w = builtin_float((object *)0, w); |
| 691 | } |
| 692 | else if (is_longobject(v) || is_longobject(w)) { |
| 693 | v = builtin_long((object *)0, v); |
| 694 | w = builtin_long((object *)0, w); |
| 695 | } |
| 696 | else { |
| 697 | err_setstr(TypeError, "can't coerce numeric types?!?!?"); |
| 698 | return -1; |
| 699 | } |
| 700 | if (v == NULL || w == NULL) { |
| 701 | XDECREF(v); |
| 702 | XDECREF(w); |
| 703 | return -1; |
| 704 | } |
| 705 | *pv = v; |
| 706 | *pw = w; |
| 707 | return 0; |
| 708 | } |