Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1 | #include "Python.h" |
| 2 | |
| 3 | /* set object implementation |
| 4 | written and maintained by Raymond D. Hettinger <python@rcn.com> |
| 5 | derived from sets.py written by Greg V. Wilson, Alex Martelli, |
| 6 | Guido van Rossum, Raymond Hettinger, and Tim Peters. |
| 7 | |
| 8 | Copyright (c) 2003 Python Software Foundation. |
| 9 | All rights reserved. |
| 10 | */ |
| 11 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 12 | static PyObject * |
| 13 | make_new_set(PyTypeObject *type, PyObject *iterable) |
| 14 | { |
| 15 | PyObject *data; |
| 16 | PyObject *it = NULL; |
| 17 | PyObject *item; |
| 18 | PySetObject *so; |
| 19 | |
| 20 | /* Get iterator. */ |
| 21 | if (iterable != NULL) { |
| 22 | it = PyObject_GetIter(iterable); |
| 23 | if (it == NULL) |
| 24 | return NULL; |
| 25 | } |
| 26 | |
| 27 | data = PyDict_New(); |
| 28 | if (data == NULL) { |
| 29 | Py_DECREF(it); |
| 30 | return NULL; |
| 31 | } |
| 32 | |
| 33 | while (it != NULL && (item = PyIter_Next(it)) != NULL) { |
| 34 | if (PyDict_SetItem(data, item, Py_True) == -1) { |
| 35 | Py_DECREF(it); |
| 36 | Py_DECREF(data); |
| 37 | Py_DECREF(item); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 38 | return NULL; |
| 39 | } |
| 40 | Py_DECREF(item); |
| 41 | } |
| 42 | Py_XDECREF(it); |
| 43 | if (PyErr_Occurred()) { |
| 44 | Py_DECREF(data); |
| 45 | return NULL; |
| 46 | } |
| 47 | |
| 48 | /* create PySetObject structure */ |
| 49 | so = (PySetObject *)type->tp_alloc(type, 0); |
| 50 | if (so == NULL) { |
| 51 | Py_DECREF(data); |
| 52 | return NULL; |
| 53 | } |
| 54 | so->data = data; |
| 55 | so->hash = -1; |
| 56 | |
| 57 | return (PyObject *)so; |
| 58 | } |
| 59 | |
| 60 | static PyObject * |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 61 | frozenset_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 62 | { |
| 63 | PyObject *iterable = NULL; |
| 64 | |
| 65 | if (!PyArg_UnpackTuple(args, type->tp_name, 0, 1, &iterable)) |
| 66 | return NULL; |
| 67 | return make_new_set(type, iterable); |
| 68 | } |
| 69 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 70 | static PyObject * |
| 71 | set_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| 72 | { |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 73 | return make_new_set(type, NULL); |
| 74 | } |
| 75 | |
Raymond Hettinger | bfd334a | 2003-11-22 03:55:23 +0000 | [diff] [blame^] | 76 | static PyObject * |
| 77 | frozenset_dict_wrapper(PyObject *d) |
| 78 | { |
| 79 | PySetObject *w; |
| 80 | |
| 81 | assert(PyDict_Check(d)); |
| 82 | w = (PySetObject *)make_new_set(&PyFrozenSet_Type, NULL); |
| 83 | if (w == NULL) |
| 84 | return NULL; |
| 85 | Py_DECREF(w->data); |
| 86 | Py_INCREF(d); |
| 87 | w->data = d; |
| 88 | return (PyObject *)w; |
| 89 | } |
| 90 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 91 | static void |
| 92 | set_dealloc(PySetObject *so) |
| 93 | { |
| 94 | PyObject_GC_UnTrack(so); |
| 95 | Py_XDECREF(so->data); |
| 96 | so->ob_type->tp_free(so); |
| 97 | } |
| 98 | |
| 99 | static int |
| 100 | set_traverse(PySetObject *so, visitproc visit, void *arg) |
| 101 | { |
| 102 | if (so->data) |
| 103 | return visit(so->data, arg); |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | static PyObject * |
| 108 | set_iter(PySetObject *so) |
| 109 | { |
| 110 | return PyObject_GetIter(so->data); |
| 111 | } |
| 112 | |
| 113 | static int |
| 114 | set_len(PySetObject *so) |
| 115 | { |
| 116 | return PyDict_Size(so->data); |
| 117 | } |
| 118 | |
| 119 | static int |
| 120 | set_contains(PySetObject *so, PyObject *key) |
| 121 | { |
Raymond Hettinger | bfd334a | 2003-11-22 03:55:23 +0000 | [diff] [blame^] | 122 | PyObject *tmp; |
Raymond Hettinger | 19c2d77 | 2003-11-21 18:36:54 +0000 | [diff] [blame] | 123 | int result; |
| 124 | |
| 125 | result = PySequence_Contains(so->data, key); |
| 126 | if (result == -1 && PyType_IsSubtype(key->ob_type, &PySet_Type)) { |
| 127 | PyErr_Clear(); |
Raymond Hettinger | bfd334a | 2003-11-22 03:55:23 +0000 | [diff] [blame^] | 128 | tmp = frozenset_dict_wrapper(((PySetObject *)(key))->data); |
Raymond Hettinger | 19c2d77 | 2003-11-21 18:36:54 +0000 | [diff] [blame] | 129 | if (tmp == NULL) |
| 130 | return -1; |
Raymond Hettinger | bfd334a | 2003-11-22 03:55:23 +0000 | [diff] [blame^] | 131 | result = PySequence_Contains(so->data, tmp); |
Raymond Hettinger | 19c2d77 | 2003-11-21 18:36:54 +0000 | [diff] [blame] | 132 | Py_DECREF(tmp); |
| 133 | } |
| 134 | return result; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | static PyObject * |
| 138 | set_copy(PySetObject *so) |
| 139 | { |
| 140 | PyObject *data; |
| 141 | PySetObject *newso; |
| 142 | |
| 143 | data = PyDict_Copy(so->data); |
| 144 | if (data == NULL) |
| 145 | return NULL; |
| 146 | |
| 147 | newso = (PySetObject *)(so->ob_type->tp_alloc(so->ob_type, 0)); |
| 148 | if (newso == NULL) { |
| 149 | Py_DECREF(data); |
| 150 | return NULL; |
| 151 | } |
| 152 | newso->data = data; |
| 153 | newso->hash = so->hash; |
| 154 | return (PyObject *)newso; |
| 155 | } |
| 156 | |
| 157 | PyDoc_STRVAR(copy_doc, "Return a shallow copy of a set."); |
| 158 | |
| 159 | static PyObject * |
| 160 | set_union(PySetObject *so, PyObject *other) |
| 161 | { |
| 162 | PySetObject *result; |
| 163 | PyObject *item, *data, *it; |
| 164 | |
| 165 | result = (PySetObject *)set_copy(so); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 166 | if (result == NULL) |
| 167 | return NULL; |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 168 | |
| 169 | if (PyAnySet_Check(other)) { |
| 170 | if (PyDict_Merge(result->data, ((PySetObject *)other)->data, 0) == -1) { |
| 171 | Py_DECREF(result); |
| 172 | return NULL; |
| 173 | } |
| 174 | return (PyObject *)result; |
| 175 | } |
| 176 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 177 | it = PyObject_GetIter(other); |
| 178 | if (it == NULL) { |
| 179 | Py_DECREF(result); |
| 180 | return NULL; |
| 181 | } |
| 182 | data = result->data; |
| 183 | while ((item = PyIter_Next(it)) != NULL) { |
| 184 | if (PyDict_SetItem(data, item, Py_True) == -1) { |
| 185 | Py_DECREF(it); |
| 186 | Py_DECREF(result); |
| 187 | Py_DECREF(item); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 188 | return NULL; |
| 189 | } |
| 190 | Py_DECREF(item); |
| 191 | } |
| 192 | Py_DECREF(it); |
| 193 | if (PyErr_Occurred()) { |
| 194 | Py_DECREF(result); |
| 195 | return NULL; |
| 196 | } |
| 197 | return (PyObject *)result; |
| 198 | } |
| 199 | |
| 200 | PyDoc_STRVAR(union_doc, |
| 201 | "Return the union of two sets as a new set.\n\ |
| 202 | \n\ |
| 203 | (i.e. all elements that are in either set.)"); |
| 204 | |
| 205 | static PyObject * |
| 206 | set_union_update(PySetObject *so, PyObject *other) |
| 207 | { |
| 208 | PyObject *item, *data, *it; |
| 209 | |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 210 | if (PyAnySet_Check(other)) { |
| 211 | if (PyDict_Merge(so->data, ((PySetObject *)other)->data, 0) == -1) |
| 212 | return NULL; |
| 213 | Py_INCREF(so); |
| 214 | return (PyObject *)so; |
| 215 | } |
| 216 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 217 | it = PyObject_GetIter(other); |
| 218 | if (it == NULL) |
| 219 | return NULL; |
| 220 | data = so->data; |
| 221 | |
| 222 | while ((item = PyIter_Next(it)) != NULL) { |
| 223 | if (PyDict_SetItem(data, item, Py_True) == -1) { |
| 224 | Py_DECREF(it); |
| 225 | Py_DECREF(item); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 226 | return NULL; |
| 227 | } |
| 228 | Py_DECREF(item); |
| 229 | } |
| 230 | Py_DECREF(it); |
| 231 | if (PyErr_Occurred()) |
| 232 | return NULL; |
| 233 | Py_RETURN_NONE; |
| 234 | } |
| 235 | |
| 236 | PyDoc_STRVAR(union_update_doc, |
| 237 | "Update a set with the union of itself and another."); |
| 238 | |
| 239 | static PyObject * |
| 240 | set_or(PySetObject *so, PyObject *other) |
| 241 | { |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 242 | if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 243 | Py_INCREF(Py_NotImplemented); |
| 244 | return Py_NotImplemented; |
| 245 | } |
| 246 | return set_union(so, other); |
| 247 | } |
| 248 | |
| 249 | static PyObject * |
| 250 | set_ior(PySetObject *so, PyObject *other) |
| 251 | { |
| 252 | PyObject *result; |
| 253 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 254 | if (!PyAnySet_Check(other)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 255 | Py_INCREF(Py_NotImplemented); |
| 256 | return Py_NotImplemented; |
| 257 | } |
| 258 | result = set_union_update(so, other); |
| 259 | if (result == NULL) |
| 260 | return NULL; |
| 261 | Py_DECREF(result); |
| 262 | Py_INCREF(so); |
| 263 | return (PyObject *)so; |
| 264 | } |
| 265 | |
| 266 | static PyObject * |
| 267 | set_intersection(PySetObject *so, PyObject *other) |
| 268 | { |
| 269 | PySetObject *result; |
| 270 | PyObject *item, *selfdata, *tgtdata, *it; |
| 271 | |
| 272 | result = (PySetObject *)make_new_set(so->ob_type, NULL); |
| 273 | if (result == NULL) |
| 274 | return NULL; |
| 275 | |
| 276 | it = PyObject_GetIter(other); |
| 277 | if (it == NULL) { |
| 278 | Py_DECREF(result); |
| 279 | return NULL; |
| 280 | } |
| 281 | |
| 282 | selfdata = so->data; |
| 283 | tgtdata = result->data; |
| 284 | while ((item = PyIter_Next(it)) != NULL) { |
Raymond Hettinger | 1b92fd5 | 2003-11-18 14:15:31 +0000 | [diff] [blame] | 285 | if (PySequence_Contains(selfdata, item)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 286 | if (PyDict_SetItem(tgtdata, item, Py_True) == -1) { |
| 287 | Py_DECREF(it); |
| 288 | Py_DECREF(result); |
| 289 | Py_DECREF(item); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 290 | return NULL; |
| 291 | } |
| 292 | } |
| 293 | Py_DECREF(item); |
| 294 | } |
| 295 | Py_DECREF(it); |
| 296 | if (PyErr_Occurred()) { |
| 297 | Py_DECREF(result); |
| 298 | return NULL; |
| 299 | } |
| 300 | return (PyObject *)result; |
| 301 | } |
| 302 | |
| 303 | PyDoc_STRVAR(intersection_doc, |
| 304 | "Return the intersection of two sets as a new set.\n\ |
| 305 | \n\ |
| 306 | (i.e. all elements that are in both sets.)"); |
| 307 | |
| 308 | static PyObject * |
| 309 | set_intersection_update(PySetObject *so, PyObject *other) |
| 310 | { |
| 311 | PyObject *item, *selfdata, *it, *newdict, *tmp; |
| 312 | |
| 313 | newdict = PyDict_New(); |
| 314 | if (newdict == NULL) |
| 315 | return newdict; |
| 316 | |
| 317 | it = PyObject_GetIter(other); |
| 318 | if (it == NULL) { |
| 319 | Py_DECREF(newdict); |
| 320 | return NULL; |
| 321 | } |
| 322 | |
| 323 | selfdata = so->data; |
| 324 | while ((item = PyIter_Next(it)) != NULL) { |
Raymond Hettinger | 1b92fd5 | 2003-11-18 14:15:31 +0000 | [diff] [blame] | 325 | if (PySequence_Contains(selfdata, item)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 326 | if (PyDict_SetItem(newdict, item, Py_True) == -1) { |
| 327 | Py_DECREF(newdict); |
| 328 | Py_DECREF(it); |
| 329 | Py_DECREF(item); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 330 | return NULL; |
| 331 | } |
| 332 | } |
| 333 | Py_DECREF(item); |
| 334 | } |
| 335 | Py_DECREF(it); |
| 336 | if (PyErr_Occurred()) { |
| 337 | Py_DECREF(newdict); |
| 338 | return NULL; |
| 339 | } |
| 340 | tmp = so->data; |
| 341 | so->data = newdict; |
| 342 | Py_DECREF(tmp); |
| 343 | Py_RETURN_NONE; |
| 344 | } |
| 345 | |
| 346 | PyDoc_STRVAR(intersection_update_doc, |
| 347 | "Update a set with the intersection of itself and another."); |
| 348 | |
| 349 | static PyObject * |
| 350 | set_and(PySetObject *so, PyObject *other) |
| 351 | { |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 352 | if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 353 | Py_INCREF(Py_NotImplemented); |
| 354 | return Py_NotImplemented; |
| 355 | } |
| 356 | return set_intersection(so, other); |
| 357 | } |
| 358 | |
| 359 | static PyObject * |
| 360 | set_iand(PySetObject *so, PyObject *other) |
| 361 | { |
| 362 | PyObject *result; |
| 363 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 364 | if (!PyAnySet_Check(other)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 365 | Py_INCREF(Py_NotImplemented); |
| 366 | return Py_NotImplemented; |
| 367 | } |
| 368 | result = set_intersection_update(so, other); |
| 369 | if (result == NULL) |
| 370 | return NULL; |
| 371 | Py_DECREF(result); |
| 372 | Py_INCREF(so); |
| 373 | return (PyObject *)so; |
| 374 | } |
| 375 | |
| 376 | static PyObject * |
| 377 | set_difference(PySetObject *so, PyObject *other) |
| 378 | { |
| 379 | PySetObject *result; |
| 380 | PyObject *item, *tgtdata, *it; |
| 381 | |
| 382 | result = (PySetObject *)set_copy(so); |
| 383 | if (result == NULL) |
| 384 | return NULL; |
| 385 | |
| 386 | it = PyObject_GetIter(other); |
| 387 | if (it == NULL) { |
| 388 | Py_DECREF(result); |
| 389 | return NULL; |
| 390 | } |
| 391 | |
| 392 | tgtdata = result->data; |
| 393 | while ((item = PyIter_Next(it)) != NULL) { |
| 394 | if (PyDict_DelItem(tgtdata, item) == -1) { |
| 395 | if (PyErr_ExceptionMatches(PyExc_KeyError)) |
| 396 | PyErr_Clear(); |
| 397 | else { |
| 398 | Py_DECREF(it); |
| 399 | Py_DECREF(result); |
| 400 | Py_DECREF(item); |
| 401 | return NULL; |
| 402 | } |
| 403 | } |
| 404 | Py_DECREF(item); |
| 405 | } |
| 406 | Py_DECREF(it); |
| 407 | if (PyErr_Occurred()) { |
| 408 | Py_DECREF(result); |
| 409 | return NULL; |
| 410 | } |
| 411 | return (PyObject *)result; |
| 412 | } |
| 413 | |
| 414 | PyDoc_STRVAR(difference_doc, |
| 415 | "Return the difference of two sets as a new set.\n\ |
| 416 | \n\ |
| 417 | (i.e. all elements that are in this set but not the other.)"); |
| 418 | |
| 419 | static PyObject * |
| 420 | set_difference_update(PySetObject *so, PyObject *other) |
| 421 | { |
| 422 | PyObject *item, *tgtdata, *it; |
| 423 | |
| 424 | it = PyObject_GetIter(other); |
| 425 | if (it == NULL) |
| 426 | return NULL; |
| 427 | |
| 428 | tgtdata = so->data; |
| 429 | while ((item = PyIter_Next(it)) != NULL) { |
| 430 | if (PyDict_DelItem(tgtdata, item) == -1) { |
| 431 | if (PyErr_ExceptionMatches(PyExc_KeyError)) |
| 432 | PyErr_Clear(); |
| 433 | else { |
| 434 | Py_DECREF(it); |
| 435 | Py_DECREF(item); |
| 436 | return NULL; |
| 437 | } |
| 438 | } |
| 439 | Py_DECREF(item); |
| 440 | } |
| 441 | Py_DECREF(it); |
| 442 | if (PyErr_Occurred()) |
| 443 | return NULL; |
| 444 | Py_RETURN_NONE; |
| 445 | } |
| 446 | |
| 447 | PyDoc_STRVAR(difference_update_doc, |
| 448 | "Remove all elements of another set from this set."); |
| 449 | |
| 450 | static PyObject * |
| 451 | set_sub(PySetObject *so, PyObject *other) |
| 452 | { |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 453 | if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 454 | Py_INCREF(Py_NotImplemented); |
| 455 | return Py_NotImplemented; |
| 456 | } |
| 457 | return set_difference(so, other); |
| 458 | } |
| 459 | |
| 460 | static PyObject * |
| 461 | set_isub(PySetObject *so, PyObject *other) |
| 462 | { |
| 463 | PyObject *result; |
| 464 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 465 | if (!PyAnySet_Check(other)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 466 | Py_INCREF(Py_NotImplemented); |
| 467 | return Py_NotImplemented; |
| 468 | } |
| 469 | result = set_difference_update(so, other); |
| 470 | if (result == NULL) |
| 471 | return NULL; |
| 472 | Py_DECREF(result); |
| 473 | Py_INCREF(so); |
| 474 | return (PyObject *)so; |
| 475 | } |
| 476 | |
| 477 | static PyObject * |
| 478 | set_symmetric_difference(PySetObject *so, PyObject *other) |
| 479 | { |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 480 | PySetObject *result, *otherset=NULL; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 481 | PyObject *item, *selfdata, *otherdata, *tgtdata, *it; |
| 482 | |
| 483 | selfdata = so->data; |
| 484 | |
| 485 | result = (PySetObject *)set_copy(so); |
| 486 | if (result == NULL) |
| 487 | return NULL; |
| 488 | tgtdata = result->data; |
| 489 | |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 490 | if (PyDict_Check(other)) |
| 491 | otherdata = other; |
| 492 | else if (PyAnySet_Check(other)) |
| 493 | otherdata = ((PySetObject *)other)->data; |
| 494 | else { |
| 495 | otherset = (PySetObject *)make_new_set(so->ob_type, other); |
| 496 | if (otherset == NULL) { |
| 497 | Py_DECREF(result); |
| 498 | return NULL; |
| 499 | } |
| 500 | otherdata = otherset->data; |
| 501 | } |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 502 | |
| 503 | it = PyObject_GetIter(otherdata); |
| 504 | if (it == NULL) { |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 505 | Py_XDECREF(otherset); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 506 | Py_DECREF(result); |
| 507 | return NULL; |
| 508 | } |
| 509 | |
| 510 | while ((item = PyIter_Next(it)) != NULL) { |
| 511 | if (PyDict_DelItem(tgtdata, item) == -1) { |
| 512 | PyErr_Clear(); |
| 513 | if (PyDict_SetItem(tgtdata, item, Py_True) == -1) { |
| 514 | Py_DECREF(it); |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 515 | Py_XDECREF(otherset); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 516 | Py_DECREF(result); |
| 517 | Py_DECREF(item); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 518 | return NULL; |
| 519 | } |
| 520 | } |
| 521 | Py_DECREF(item); |
| 522 | } |
| 523 | Py_DECREF(it); |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 524 | Py_XDECREF(otherset); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 525 | if (PyErr_Occurred()) { |
| 526 | Py_DECREF(result); |
| 527 | return NULL; |
| 528 | } |
| 529 | return (PyObject *)result; |
| 530 | } |
| 531 | |
| 532 | PyDoc_STRVAR(symmetric_difference_doc, |
| 533 | "Return the symmetric difference of two sets as a new set.\n\ |
| 534 | \n\ |
| 535 | (i.e. all elements that are in exactly one of the sets.)"); |
| 536 | |
| 537 | static PyObject * |
| 538 | set_symmetric_difference_update(PySetObject *so, PyObject *other) |
| 539 | { |
| 540 | PyObject *item, *selfdata, *it, *otherdata; |
| 541 | PySetObject *otherset = NULL; |
| 542 | |
| 543 | selfdata = so->data; |
| 544 | |
| 545 | if (PyDict_Check(other)) |
| 546 | otherdata = other; |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 547 | else if (PyAnySet_Check(other)) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 548 | otherdata = ((PySetObject *)other)->data; |
| 549 | else { |
| 550 | otherset = (PySetObject *)make_new_set(so->ob_type, other); |
| 551 | if (otherset == NULL) |
| 552 | return NULL; |
| 553 | otherdata = otherset->data; |
| 554 | } |
| 555 | |
| 556 | it = PyObject_GetIter(otherdata); |
| 557 | if (it == NULL) |
| 558 | return NULL; |
| 559 | |
| 560 | while ((item = PyIter_Next(it)) != NULL) { |
Raymond Hettinger | 1b92fd5 | 2003-11-18 14:15:31 +0000 | [diff] [blame] | 561 | if (PySequence_Contains(selfdata, item)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 562 | if (PyDict_DelItem(selfdata, item) == -1) { |
| 563 | Py_XDECREF(otherset); |
| 564 | Py_DECREF(it); |
| 565 | Py_DECREF(item); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 566 | return NULL; |
| 567 | } |
| 568 | } else { |
| 569 | if (PyDict_SetItem(selfdata, item, Py_True) == -1) { |
| 570 | Py_XDECREF(otherset); |
| 571 | Py_DECREF(it); |
| 572 | Py_DECREF(item); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 573 | return NULL; |
| 574 | } |
| 575 | } |
| 576 | Py_DECREF(item); |
| 577 | } |
| 578 | Py_XDECREF(otherset); |
| 579 | Py_DECREF(it); |
| 580 | if (PyErr_Occurred()) |
| 581 | return NULL; |
| 582 | Py_RETURN_NONE; |
| 583 | } |
| 584 | |
| 585 | PyDoc_STRVAR(symmetric_difference_update_doc, |
| 586 | "Update a set with the symmetric difference of itself and another."); |
| 587 | |
| 588 | static PyObject * |
| 589 | set_xor(PySetObject *so, PyObject *other) |
| 590 | { |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 591 | if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 592 | Py_INCREF(Py_NotImplemented); |
| 593 | return Py_NotImplemented; |
| 594 | } |
| 595 | return set_symmetric_difference(so, other); |
| 596 | } |
| 597 | |
| 598 | static PyObject * |
| 599 | set_ixor(PySetObject *so, PyObject *other) |
| 600 | { |
| 601 | PyObject *result; |
| 602 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 603 | if (!PyAnySet_Check(other)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 604 | Py_INCREF(Py_NotImplemented); |
| 605 | return Py_NotImplemented; |
| 606 | } |
| 607 | result = set_symmetric_difference_update(so, other); |
| 608 | if (result == NULL) |
| 609 | return NULL; |
| 610 | Py_DECREF(result); |
| 611 | Py_INCREF(so); |
| 612 | return (PyObject *)so; |
| 613 | } |
| 614 | |
| 615 | static PyObject * |
| 616 | set_issubset(PySetObject *so, PyObject *other) |
| 617 | { |
Raymond Hettinger | 3fbec70 | 2003-11-21 07:56:36 +0000 | [diff] [blame] | 618 | PyObject *otherdata, *it, *item, *tmp, *result; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 619 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 620 | if (!PyAnySet_Check(other)) { |
Raymond Hettinger | 3fbec70 | 2003-11-21 07:56:36 +0000 | [diff] [blame] | 621 | tmp = make_new_set(&PySet_Type, other); |
| 622 | if (tmp == NULL) |
| 623 | return NULL; |
| 624 | result = set_issubset(so, tmp); |
| 625 | Py_DECREF(tmp); |
| 626 | return result; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 627 | } |
| 628 | if (set_len(so) > set_len((PySetObject *)other)) |
| 629 | Py_RETURN_FALSE; |
| 630 | |
| 631 | it = PyObject_GetIter(so->data); |
| 632 | if (it == NULL) |
| 633 | return NULL; |
| 634 | |
| 635 | otherdata = ((PySetObject *)other)->data; |
| 636 | while ((item = PyIter_Next(it)) != NULL) { |
Raymond Hettinger | 1b92fd5 | 2003-11-18 14:15:31 +0000 | [diff] [blame] | 637 | if (!PySequence_Contains(otherdata, item)) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 638 | Py_DECREF(it); |
| 639 | Py_DECREF(item); |
| 640 | Py_RETURN_FALSE; |
| 641 | } |
| 642 | Py_DECREF(item); |
| 643 | } |
| 644 | Py_DECREF(it); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 645 | if (PyErr_Occurred()) |
| 646 | return NULL; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 647 | Py_RETURN_TRUE; |
| 648 | } |
| 649 | |
| 650 | PyDoc_STRVAR(issubset_doc, "Report whether another set contains this set."); |
| 651 | |
| 652 | static PyObject * |
| 653 | set_issuperset(PySetObject *so, PyObject *other) |
| 654 | { |
Raymond Hettinger | 3fbec70 | 2003-11-21 07:56:36 +0000 | [diff] [blame] | 655 | PyObject *tmp, *result; |
| 656 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 657 | if (!PyAnySet_Check(other)) { |
Raymond Hettinger | 3fbec70 | 2003-11-21 07:56:36 +0000 | [diff] [blame] | 658 | tmp = make_new_set(&PySet_Type, other); |
| 659 | if (tmp == NULL) |
| 660 | return NULL; |
| 661 | result = set_issuperset(so, tmp); |
| 662 | Py_DECREF(tmp); |
| 663 | return result; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 664 | } |
| 665 | return set_issubset((PySetObject *)other, (PyObject *)so); |
| 666 | } |
| 667 | |
| 668 | PyDoc_STRVAR(issuperset_doc, "Report whether this set contains another set."); |
| 669 | |
| 670 | static long |
| 671 | set_nohash(PyObject *self) |
| 672 | { |
| 673 | PyErr_SetString(PyExc_TypeError, "set objects are unhashable"); |
| 674 | return -1; |
| 675 | } |
| 676 | |
| 677 | static int |
| 678 | set_nocmp(PyObject *self) |
| 679 | { |
| 680 | PyErr_SetString(PyExc_TypeError, "cannot compare sets using cmp()"); |
| 681 | return -1; |
| 682 | } |
| 683 | |
| 684 | static long |
| 685 | frozenset_hash(PyObject *self) |
| 686 | { |
| 687 | PyObject *it, *item; |
| 688 | PySetObject *so = (PySetObject *)self; |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 689 | long hash = 0, x; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 690 | |
| 691 | if (so->hash != -1) |
| 692 | return so->hash; |
| 693 | |
| 694 | it = PyObject_GetIter(((PySetObject *)so)->data); |
| 695 | if (it == NULL) |
| 696 | return -1; |
| 697 | |
| 698 | while ((item = PyIter_Next(it)) != NULL) { |
Raymond Hettinger | 82d73dd | 2003-11-20 22:54:33 +0000 | [diff] [blame] | 699 | x = PyObject_Hash(item); |
| 700 | /* Applying x*(x+1) breaks-up linear relationships so that |
| 701 | h(1) ^ h(2) will be less likely to coincide with hash(3). |
| 702 | Multiplying by a large prime increases the dispersion |
| 703 | between consecutive hashes. Adding one bit from the |
| 704 | original restores the one bit lost during the multiply |
| 705 | (all the products are even numbers). */ |
| 706 | hash ^= (x * (x+1) * 3644798167) | (x&1); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 707 | Py_DECREF(item); |
| 708 | } |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 709 | Py_DECREF(it); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 710 | if (PyErr_Occurred()) |
| 711 | return -1; |
| 712 | so->hash = hash; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 713 | return hash; |
| 714 | } |
| 715 | |
| 716 | static PyObject * |
| 717 | set_richcompare(PySetObject *v, PyObject *w, int op) |
| 718 | { |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 719 | if(!PyAnySet_Check(w)) { |
| 720 | if (op == Py_EQ) |
| 721 | Py_RETURN_FALSE; |
| 722 | if (op == Py_NE) |
| 723 | Py_RETURN_TRUE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 724 | PyErr_SetString(PyExc_TypeError, "can only compare to a set"); |
| 725 | return NULL; |
| 726 | } |
| 727 | switch (op) { |
| 728 | case Py_EQ: |
| 729 | case Py_NE: |
| 730 | return PyObject_RichCompare(((PySetObject *)v)->data, |
| 731 | ((PySetObject *)w)->data, op); |
| 732 | case Py_LE: |
| 733 | return set_issubset((PySetObject *)v, w); |
| 734 | case Py_GE: |
| 735 | return set_issuperset((PySetObject *)v, w); |
| 736 | case Py_LT: |
| 737 | if (set_len(v) >= set_len((PySetObject *)w)) |
| 738 | Py_RETURN_FALSE; |
| 739 | return set_issubset((PySetObject *)v, w); |
| 740 | case Py_GT: |
| 741 | if (set_len(v) <= set_len((PySetObject *)w)) |
| 742 | Py_RETURN_FALSE; |
| 743 | return set_issuperset((PySetObject *)v, w); |
| 744 | } |
| 745 | Py_INCREF(Py_NotImplemented); |
| 746 | return Py_NotImplemented; |
| 747 | } |
| 748 | |
| 749 | static PyObject * |
| 750 | set_repr(PySetObject *so) |
| 751 | { |
| 752 | PyObject *keys, *result, *listrepr; |
| 753 | |
| 754 | keys = PyDict_Keys(so->data); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 755 | if (keys == NULL) |
| 756 | return NULL; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 757 | listrepr = PyObject_Repr(keys); |
| 758 | Py_DECREF(keys); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 759 | if (listrepr == NULL) |
| 760 | return NULL; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 761 | |
| 762 | result = PyString_FromFormat("%s(%s)", so->ob_type->tp_name, |
| 763 | PyString_AS_STRING(listrepr)); |
| 764 | Py_DECREF(listrepr); |
| 765 | return result; |
| 766 | } |
| 767 | |
| 768 | static int |
| 769 | set_tp_print(PySetObject *so, FILE *fp, int flags) |
| 770 | { |
| 771 | PyObject *it, *item; |
| 772 | int firstpass=1; |
| 773 | |
| 774 | it = PyObject_GetIter(so->data); |
| 775 | if (it == NULL) |
| 776 | return -1; |
| 777 | fprintf(fp, "%s([", so->ob_type->tp_name); |
| 778 | |
| 779 | while ((item = PyIter_Next(it)) != NULL) { |
| 780 | if (firstpass == 1) |
| 781 | firstpass = 0; |
| 782 | else |
Raymond Hettinger | e2c277a | 2003-11-16 16:36:58 +0000 | [diff] [blame] | 783 | fprintf(fp, ", "); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 784 | if (PyObject_Print(item, fp, 0) != 0) { |
| 785 | Py_DECREF(it); |
| 786 | Py_DECREF(item); |
| 787 | return -1; |
| 788 | } |
| 789 | Py_DECREF(item); |
| 790 | } |
| 791 | Py_DECREF(it); |
| 792 | fprintf(fp, "])"); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 793 | if (PyErr_Occurred()) |
| 794 | return -1; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 795 | return 0; |
| 796 | } |
| 797 | |
| 798 | static PyObject * |
| 799 | set_clear(PySetObject *so) |
| 800 | { |
| 801 | PyDict_Clear(so->data); |
| 802 | so->hash = -1; |
| 803 | Py_INCREF(Py_None); |
| 804 | return Py_None; |
| 805 | } |
| 806 | |
| 807 | PyDoc_STRVAR(clear_doc, "Remove all elements from this set."); |
| 808 | |
| 809 | static int |
| 810 | set_tp_clear(PySetObject *so) |
| 811 | { |
| 812 | PyDict_Clear(so->data); |
| 813 | so->hash = -1; |
| 814 | return 0; |
| 815 | } |
| 816 | |
| 817 | static PyObject * |
| 818 | set_add(PySetObject *so, PyObject *item) |
| 819 | { |
| 820 | if (PyDict_SetItem(so->data, item, Py_True) == -1) |
| 821 | return NULL; |
| 822 | Py_INCREF(Py_None); |
| 823 | return Py_None; |
| 824 | } |
| 825 | |
| 826 | PyDoc_STRVAR(add_doc, |
| 827 | "Add an element to a set.\n\ |
| 828 | \n\ |
| 829 | This has no effect if the element is already present."); |
| 830 | |
| 831 | static PyObject * |
| 832 | set_remove(PySetObject *so, PyObject *item) |
| 833 | { |
Raymond Hettinger | bfd334a | 2003-11-22 03:55:23 +0000 | [diff] [blame^] | 834 | PyObject *tmp; |
| 835 | |
| 836 | if (PyDict_DelItem(so->data, item) == -1) { |
| 837 | if (!PyType_IsSubtype(item->ob_type, &PySet_Type)) |
| 838 | return NULL; |
| 839 | PyErr_Clear(); |
| 840 | tmp = frozenset_dict_wrapper(((PySetObject *)(item))->data); |
| 841 | if (tmp == NULL) |
| 842 | return NULL; |
| 843 | if (PyDict_DelItem(so->data, tmp) == -1) { |
| 844 | Py_DECREF(tmp); |
| 845 | return NULL; |
| 846 | } |
| 847 | Py_DECREF(tmp); |
| 848 | } |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 849 | Py_INCREF(Py_None); |
| 850 | return Py_None; |
| 851 | } |
| 852 | |
| 853 | PyDoc_STRVAR(remove_doc, |
| 854 | "Remove an element from a set; it must be a member.\n\ |
| 855 | \n\ |
| 856 | If the element is not a member, raise a KeyError."); |
| 857 | |
| 858 | static PyObject * |
| 859 | set_discard(PySetObject *so, PyObject *item) |
| 860 | { |
Raymond Hettinger | bfd334a | 2003-11-22 03:55:23 +0000 | [diff] [blame^] | 861 | PyObject *tmp; |
| 862 | |
Guido van Rossum | b61982b | 2003-11-18 19:27:19 +0000 | [diff] [blame] | 863 | if (PyDict_DelItem(so->data, item) == -1) { |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 864 | if (PyErr_ExceptionMatches(PyExc_KeyError)) |
| 865 | PyErr_Clear(); |
Raymond Hettinger | bfd334a | 2003-11-22 03:55:23 +0000 | [diff] [blame^] | 866 | else { |
| 867 | if (!PyType_IsSubtype(item->ob_type, &PySet_Type)) |
| 868 | return NULL; |
| 869 | PyErr_Clear(); |
| 870 | tmp = frozenset_dict_wrapper(((PySetObject *)(item))->data); |
| 871 | if (tmp == NULL) |
| 872 | return NULL; |
| 873 | if (PyDict_DelItem(so->data, tmp) == -1) { |
| 874 | if (PyErr_ExceptionMatches(PyExc_KeyError)) |
| 875 | PyErr_Clear(); |
| 876 | else { |
| 877 | Py_DECREF(tmp); |
| 878 | return NULL; |
| 879 | } |
| 880 | } |
| 881 | Py_DECREF(tmp); |
| 882 | } |
Guido van Rossum | b61982b | 2003-11-18 19:27:19 +0000 | [diff] [blame] | 883 | } |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 884 | Py_INCREF(Py_None); |
| 885 | return Py_None; |
| 886 | } |
| 887 | |
| 888 | PyDoc_STRVAR(discard_doc, |
| 889 | "Remove an element from a set if it is a member.\n\ |
| 890 | \n\ |
| 891 | If the element is not a member, do nothing."); |
| 892 | |
| 893 | static PyObject * |
| 894 | set_pop(PySetObject *so) |
| 895 | { |
| 896 | PyObject *key, *value; |
| 897 | int pos = 0; |
| 898 | |
| 899 | if (!PyDict_Next(so->data, &pos, &key, &value)) { |
| 900 | PyErr_SetString(PyExc_KeyError, "pop from an empty set"); |
| 901 | return NULL; |
| 902 | } |
| 903 | Py_INCREF(key); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 904 | if (PyDict_DelItem(so->data, key) == -1) { |
| 905 | Py_DECREF(key); |
| 906 | return NULL; |
| 907 | } |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 908 | return key; |
| 909 | } |
| 910 | |
| 911 | PyDoc_STRVAR(pop_doc, "Remove and return an arbitrary set element."); |
| 912 | |
| 913 | static PyObject * |
| 914 | set_reduce(PySetObject *so) |
| 915 | { |
| 916 | PyObject *keys=NULL, *args=NULL, *result=NULL; |
| 917 | |
| 918 | keys = PyDict_Keys(so->data); |
| 919 | if (keys == NULL) |
| 920 | goto done; |
| 921 | args = PyTuple_Pack(1, keys); |
| 922 | if (args == NULL) |
| 923 | goto done; |
| 924 | result = PyTuple_Pack(2, so->ob_type, args); |
| 925 | done: |
| 926 | Py_XDECREF(args); |
| 927 | Py_XDECREF(keys); |
| 928 | return result; |
| 929 | } |
| 930 | |
| 931 | PyDoc_STRVAR(reduce_doc, "Return state information for pickling."); |
| 932 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 933 | static int |
| 934 | set_init(PySetObject *self, PyObject *args, PyObject *kwds) |
| 935 | { |
| 936 | PyObject *iterable = NULL; |
| 937 | PyObject *result; |
| 938 | |
| 939 | if (!PyAnySet_Check(self)) |
| 940 | return -1; |
| 941 | if (!PyArg_UnpackTuple(args, self->ob_type->tp_name, 0, 1, &iterable)) |
| 942 | return -1; |
| 943 | PyDict_Clear(self->data); |
| 944 | self->hash = -1; |
| 945 | if (iterable == NULL) |
| 946 | return 0; |
| 947 | result = set_union_update(self, iterable); |
| 948 | if (result != NULL) { |
| 949 | Py_DECREF(result); |
| 950 | return 0; |
| 951 | } |
| 952 | return -1; |
| 953 | } |
| 954 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 955 | static PySequenceMethods set_as_sequence = { |
| 956 | (inquiry)set_len, /* sq_length */ |
| 957 | 0, /* sq_concat */ |
| 958 | 0, /* sq_repeat */ |
| 959 | 0, /* sq_item */ |
| 960 | 0, /* sq_slice */ |
| 961 | 0, /* sq_ass_item */ |
| 962 | 0, /* sq_ass_slice */ |
| 963 | (objobjproc)set_contains, /* sq_contains */ |
| 964 | }; |
| 965 | |
| 966 | /* set object ********************************************************/ |
| 967 | |
| 968 | static PyMethodDef set_methods[] = { |
| 969 | {"add", (PyCFunction)set_add, METH_O, |
| 970 | add_doc}, |
| 971 | {"clear", (PyCFunction)set_clear, METH_NOARGS, |
| 972 | clear_doc}, |
| 973 | {"copy", (PyCFunction)set_copy, METH_NOARGS, |
| 974 | copy_doc}, |
| 975 | {"__copy__", (PyCFunction)set_copy, METH_NOARGS, |
| 976 | copy_doc}, |
| 977 | {"discard", (PyCFunction)set_discard, METH_O, |
| 978 | discard_doc}, |
| 979 | {"difference", (PyCFunction)set_difference, METH_O, |
| 980 | difference_doc}, |
| 981 | {"difference_update", (PyCFunction)set_difference_update, METH_O, |
| 982 | difference_update_doc}, |
| 983 | {"intersection",(PyCFunction)set_intersection, METH_O, |
| 984 | intersection_doc}, |
| 985 | {"intersection_update",(PyCFunction)set_intersection_update, METH_O, |
| 986 | intersection_update_doc}, |
| 987 | {"issubset", (PyCFunction)set_issubset, METH_O, |
| 988 | issubset_doc}, |
| 989 | {"issuperset", (PyCFunction)set_issuperset, METH_O, |
| 990 | issuperset_doc}, |
| 991 | {"pop", (PyCFunction)set_pop, METH_NOARGS, |
| 992 | pop_doc}, |
| 993 | {"__reduce__", (PyCFunction)set_reduce, METH_NOARGS, |
| 994 | reduce_doc}, |
| 995 | {"remove", (PyCFunction)set_remove, METH_O, |
| 996 | remove_doc}, |
| 997 | {"symmetric_difference",(PyCFunction)set_symmetric_difference, METH_O, |
| 998 | symmetric_difference_doc}, |
| 999 | {"symmetric_difference_update",(PyCFunction)set_symmetric_difference_update, METH_O, |
| 1000 | symmetric_difference_update_doc}, |
| 1001 | {"union", (PyCFunction)set_union, METH_O, |
| 1002 | union_doc}, |
| 1003 | {"union_update",(PyCFunction)set_union_update, METH_O, |
| 1004 | union_update_doc}, |
| 1005 | {NULL, NULL} /* sentinel */ |
| 1006 | }; |
| 1007 | |
| 1008 | static PyNumberMethods set_as_number = { |
| 1009 | 0, /*nb_add*/ |
| 1010 | (binaryfunc)set_sub, /*nb_subtract*/ |
| 1011 | 0, /*nb_multiply*/ |
| 1012 | 0, /*nb_divide*/ |
| 1013 | 0, /*nb_remainder*/ |
| 1014 | 0, /*nb_divmod*/ |
| 1015 | 0, /*nb_power*/ |
| 1016 | 0, /*nb_negative*/ |
| 1017 | 0, /*nb_positive*/ |
| 1018 | 0, /*nb_absolute*/ |
| 1019 | 0, /*nb_nonzero*/ |
| 1020 | 0, /*nb_invert*/ |
| 1021 | 0, /*nb_lshift*/ |
| 1022 | 0, /*nb_rshift*/ |
| 1023 | (binaryfunc)set_and, /*nb_and*/ |
| 1024 | (binaryfunc)set_xor, /*nb_xor*/ |
| 1025 | (binaryfunc)set_or, /*nb_or*/ |
| 1026 | 0, /*nb_coerce*/ |
| 1027 | 0, /*nb_int*/ |
| 1028 | 0, /*nb_long*/ |
| 1029 | 0, /*nb_float*/ |
| 1030 | 0, /*nb_oct*/ |
| 1031 | 0, /*nb_hex*/ |
| 1032 | 0, /*nb_inplace_add*/ |
| 1033 | (binaryfunc)set_isub, /*nb_inplace_subtract*/ |
| 1034 | 0, /*nb_inplace_multiply*/ |
| 1035 | 0, /*nb_inplace_divide*/ |
| 1036 | 0, /*nb_inplace_remainder*/ |
| 1037 | 0, /*nb_inplace_power*/ |
| 1038 | 0, /*nb_inplace_lshift*/ |
| 1039 | 0, /*nb_inplace_rshift*/ |
| 1040 | (binaryfunc)set_iand, /*nb_inplace_and*/ |
| 1041 | (binaryfunc)set_ixor, /*nb_inplace_xor*/ |
| 1042 | (binaryfunc)set_ior, /*nb_inplace_or*/ |
| 1043 | }; |
| 1044 | |
| 1045 | PyDoc_STRVAR(set_doc, |
| 1046 | "set(iterable) --> set object\n\ |
| 1047 | \n\ |
| 1048 | Build an unordered collection."); |
| 1049 | |
| 1050 | PyTypeObject PySet_Type = { |
| 1051 | PyObject_HEAD_INIT(&PyType_Type) |
| 1052 | 0, /* ob_size */ |
| 1053 | "set", /* tp_name */ |
| 1054 | sizeof(PySetObject), /* tp_basicsize */ |
| 1055 | 0, /* tp_itemsize */ |
| 1056 | /* methods */ |
| 1057 | (destructor)set_dealloc, /* tp_dealloc */ |
| 1058 | (printfunc)set_tp_print, /* tp_print */ |
| 1059 | 0, /* tp_getattr */ |
| 1060 | 0, /* tp_setattr */ |
| 1061 | (cmpfunc)set_nocmp, /* tp_compare */ |
| 1062 | (reprfunc)set_repr, /* tp_repr */ |
| 1063 | &set_as_number, /* tp_as_number */ |
| 1064 | &set_as_sequence, /* tp_as_sequence */ |
| 1065 | 0, /* tp_as_mapping */ |
| 1066 | set_nohash, /* tp_hash */ |
| 1067 | 0, /* tp_call */ |
| 1068 | 0, /* tp_str */ |
| 1069 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 1070 | 0, /* tp_setattro */ |
| 1071 | 0, /* tp_as_buffer */ |
| 1072 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_CHECKTYPES | |
| 1073 | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| 1074 | set_doc, /* tp_doc */ |
| 1075 | (traverseproc)set_traverse, /* tp_traverse */ |
| 1076 | (inquiry)set_tp_clear, /* tp_clear */ |
| 1077 | (richcmpfunc)set_richcompare, /* tp_richcompare */ |
| 1078 | 0, /* tp_weaklistoffset */ |
| 1079 | (getiterfunc)set_iter, /* tp_iter */ |
| 1080 | 0, /* tp_iternext */ |
| 1081 | set_methods, /* tp_methods */ |
| 1082 | 0, /* tp_members */ |
| 1083 | 0, /* tp_getset */ |
| 1084 | 0, /* tp_base */ |
| 1085 | 0, /* tp_dict */ |
| 1086 | 0, /* tp_descr_get */ |
| 1087 | 0, /* tp_descr_set */ |
| 1088 | 0, /* tp_dictoffset */ |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 1089 | (initproc)set_init, /* tp_init */ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1090 | PyType_GenericAlloc, /* tp_alloc */ |
| 1091 | set_new, /* tp_new */ |
| 1092 | PyObject_GC_Del, /* tp_free */ |
| 1093 | }; |
| 1094 | |
| 1095 | /* frozenset object ********************************************************/ |
| 1096 | |
| 1097 | |
| 1098 | static PyMethodDef frozenset_methods[] = { |
| 1099 | {"copy", (PyCFunction)set_copy, METH_NOARGS, |
| 1100 | copy_doc}, |
| 1101 | {"__copy__", (PyCFunction)set_copy, METH_NOARGS, |
| 1102 | copy_doc}, |
| 1103 | {"difference",(PyCFunction)set_difference, METH_O, |
| 1104 | difference_doc}, |
| 1105 | {"intersection",(PyCFunction)set_intersection, METH_O, |
| 1106 | intersection_doc}, |
| 1107 | {"issubset",(PyCFunction)set_issubset, METH_O, |
| 1108 | issubset_doc}, |
| 1109 | {"issuperset",(PyCFunction)set_issuperset, METH_O, |
| 1110 | issuperset_doc}, |
| 1111 | {"__reduce__", (PyCFunction)set_reduce, METH_NOARGS, |
| 1112 | reduce_doc}, |
| 1113 | {"symmetric_difference",(PyCFunction)set_symmetric_difference, METH_O, |
| 1114 | symmetric_difference_doc}, |
| 1115 | {"union", (PyCFunction)set_union, METH_O, |
| 1116 | union_doc}, |
| 1117 | {NULL, NULL} /* sentinel */ |
| 1118 | }; |
| 1119 | |
| 1120 | static PyNumberMethods frozenset_as_number = { |
| 1121 | 0, /*nb_add*/ |
| 1122 | (binaryfunc)set_sub, /*nb_subtract*/ |
| 1123 | 0, /*nb_multiply*/ |
| 1124 | 0, /*nb_divide*/ |
| 1125 | 0, /*nb_remainder*/ |
| 1126 | 0, /*nb_divmod*/ |
| 1127 | 0, /*nb_power*/ |
| 1128 | 0, /*nb_negative*/ |
| 1129 | 0, /*nb_positive*/ |
| 1130 | 0, /*nb_absolute*/ |
| 1131 | 0, /*nb_nonzero*/ |
| 1132 | 0, /*nb_invert*/ |
| 1133 | 0, /*nb_lshift*/ |
| 1134 | 0, /*nb_rshift*/ |
| 1135 | (binaryfunc)set_and, /*nb_and*/ |
| 1136 | (binaryfunc)set_xor, /*nb_xor*/ |
| 1137 | (binaryfunc)set_or, /*nb_or*/ |
| 1138 | }; |
| 1139 | |
| 1140 | PyDoc_STRVAR(frozenset_doc, |
| 1141 | "frozenset(iterable) --> frozenset object\n\ |
| 1142 | \n\ |
| 1143 | Build an immutable unordered collection."); |
| 1144 | |
| 1145 | PyTypeObject PyFrozenSet_Type = { |
| 1146 | PyObject_HEAD_INIT(&PyType_Type) |
| 1147 | 0, /* ob_size */ |
| 1148 | "frozenset", /* tp_name */ |
| 1149 | sizeof(PySetObject), /* tp_basicsize */ |
| 1150 | 0, /* tp_itemsize */ |
| 1151 | /* methods */ |
| 1152 | (destructor)set_dealloc, /* tp_dealloc */ |
| 1153 | (printfunc)set_tp_print, /* tp_print */ |
| 1154 | 0, /* tp_getattr */ |
| 1155 | 0, /* tp_setattr */ |
| 1156 | (cmpfunc)set_nocmp, /* tp_compare */ |
| 1157 | (reprfunc)set_repr, /* tp_repr */ |
| 1158 | &frozenset_as_number, /* tp_as_number */ |
| 1159 | &set_as_sequence, /* tp_as_sequence */ |
| 1160 | 0, /* tp_as_mapping */ |
| 1161 | frozenset_hash, /* tp_hash */ |
| 1162 | 0, /* tp_call */ |
| 1163 | 0, /* tp_str */ |
| 1164 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 1165 | 0, /* tp_setattro */ |
| 1166 | 0, /* tp_as_buffer */ |
| 1167 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_CHECKTYPES | |
| 1168 | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| 1169 | frozenset_doc, /* tp_doc */ |
| 1170 | (traverseproc)set_traverse, /* tp_traverse */ |
| 1171 | 0, /* tp_clear */ |
| 1172 | (richcmpfunc)set_richcompare, /* tp_richcompare */ |
| 1173 | 0, /* tp_weaklistoffset */ |
| 1174 | (getiterfunc)set_iter, /* tp_iter */ |
| 1175 | 0, /* tp_iternext */ |
| 1176 | frozenset_methods, /* tp_methods */ |
| 1177 | 0, /* tp_members */ |
| 1178 | 0, /* tp_getset */ |
| 1179 | 0, /* tp_base */ |
| 1180 | 0, /* tp_dict */ |
| 1181 | 0, /* tp_descr_get */ |
| 1182 | 0, /* tp_descr_set */ |
| 1183 | 0, /* tp_dictoffset */ |
| 1184 | 0, /* tp_init */ |
| 1185 | PyType_GenericAlloc, /* tp_alloc */ |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 1186 | frozenset_new, /* tp_new */ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1187 | PyObject_GC_Del, /* tp_free */ |
| 1188 | }; |