Changeset 388 for python/vendor/current/Objects/setobject.c
- Timestamp:
- Mar 19, 2014, 11:11:30 AM (11 years ago)
- File:
-
- 1 edited
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python/vendor/current/Objects/setobject.c
r2 r388 1 1 2 /* set object implementation 2 /* set object implementation 3 3 Written and maintained by Raymond D. Hettinger <python@rcn.com> 4 4 Derived from Lib/sets.py and Objects/dictobject.c. … … 17 17 set_key_error(PyObject *arg) 18 18 { 19 20 21 22 23 24 19 PyObject *tup; 20 tup = PyTuple_Pack(1, arg); 21 if (!tup) 22 return; /* caller will expect error to be set anyway */ 23 PyErr_SetObject(PyExc_KeyError, tup); 24 Py_DECREF(tup); 25 25 } 26 26 … … 35 35 _PySet_Dummy(void) 36 36 { 37 37 return dummy; 38 38 } 39 39 #endif 40 40 41 #define INIT_NONZERO_SET_SLOTS(so) do { 42 (so)->table = (so)->smalltable;\43 (so)->mask = PySet_MINSIZE - 1;\44 (so)->hash = -1;\41 #define INIT_NONZERO_SET_SLOTS(so) do { \ 42 (so)->table = (so)->smalltable; \ 43 (so)->mask = PySet_MINSIZE - 1; \ 44 (so)->hash = -1; \ 45 45 } while(0) 46 46 47 #define EMPTY_TO_MINSIZE(so) do { 48 memset((so)->smalltable, 0, sizeof((so)->smalltable));\49 (so)->used = (so)->fill = 0;\50 INIT_NONZERO_SET_SLOTS(so);\47 #define EMPTY_TO_MINSIZE(so) do { \ 48 memset((so)->smalltable, 0, sizeof((so)->smalltable)); \ 49 (so)->used = (so)->fill = 0; \ 50 INIT_NONZERO_SET_SLOTS(so); \ 51 51 } while(0) 52 52 … … 76 76 set_lookkey(PySetObject *so, PyObject *key, register long hash) 77 77 { 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 78 register Py_ssize_t i; 79 register size_t perturb; 80 register setentry *freeslot; 81 register size_t mask = so->mask; 82 setentry *table = so->table; 83 register setentry *entry; 84 register int cmp; 85 PyObject *startkey; 86 87 i = hash & mask; 88 entry = &table[i]; 89 if (entry->key == NULL || entry->key == key) 90 return entry; 91 92 if (entry->key == dummy) 93 freeslot = entry; 94 else { 95 if (entry->hash == hash) { 96 startkey = entry->key; 97 Py_INCREF(startkey); 98 cmp = PyObject_RichCompareBool(startkey, key, Py_EQ); 99 Py_DECREF(startkey); 100 if (cmp < 0) 101 return NULL; 102 if (table == so->table && entry->key == startkey) { 103 if (cmp > 0) 104 return entry; 105 } 106 else { 107 /* The compare did major nasty stuff to the 108 * set: start over. 109 */ 110 return set_lookkey(so, key, hash); 111 } 112 } 113 freeslot = NULL; 114 } 115 116 /* In the loop, key == dummy is by far (factor of 100s) the 117 least likely outcome, so test for that last. */ 118 for (perturb = hash; ; perturb >>= PERTURB_SHIFT) { 119 i = (i << 2) + i + perturb + 1; 120 entry = &table[i & mask]; 121 if (entry->key == NULL) { 122 if (freeslot != NULL) 123 entry = freeslot; 124 break; 125 } 126 if (entry->key == key) 127 break; 128 if (entry->hash == hash && entry->key != dummy) { 129 startkey = entry->key; 130 Py_INCREF(startkey); 131 cmp = PyObject_RichCompareBool(startkey, key, Py_EQ); 132 Py_DECREF(startkey); 133 if (cmp < 0) 134 return NULL; 135 if (table == so->table && entry->key == startkey) { 136 if (cmp > 0) 137 break; 138 } 139 else { 140 /* The compare did major nasty stuff to the 141 * set: start over. 142 */ 143 return set_lookkey(so, key, hash); 144 } 145 } 146 else if (entry->key == dummy && freeslot == NULL) 147 freeslot = entry; 148 } 149 return entry; 150 150 } 151 151 … … 158 158 set_lookkey_string(PySetObject *so, PyObject *key, register long hash) 159 159 { 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 assert(0);/* NOT REACHED */203 160 register Py_ssize_t i; 161 register size_t perturb; 162 register setentry *freeslot; 163 register size_t mask = so->mask; 164 setentry *table = so->table; 165 register setentry *entry; 166 167 /* Make sure this function doesn't have to handle non-string keys, 168 including subclasses of str; e.g., one reason to subclass 169 strings is to override __eq__, and for speed we don't cater to 170 that here. */ 171 if (!PyString_CheckExact(key)) { 172 so->lookup = set_lookkey; 173 return set_lookkey(so, key, hash); 174 } 175 i = hash & mask; 176 entry = &table[i]; 177 if (entry->key == NULL || entry->key == key) 178 return entry; 179 if (entry->key == dummy) 180 freeslot = entry; 181 else { 182 if (entry->hash == hash && _PyString_Eq(entry->key, key)) 183 return entry; 184 freeslot = NULL; 185 } 186 187 /* In the loop, key == dummy is by far (factor of 100s) the 188 least likely outcome, so test for that last. */ 189 for (perturb = hash; ; perturb >>= PERTURB_SHIFT) { 190 i = (i << 2) + i + perturb + 1; 191 entry = &table[i & mask]; 192 if (entry->key == NULL) 193 return freeslot == NULL ? entry : freeslot; 194 if (entry->key == key 195 || (entry->hash == hash 196 && entry->key != dummy 197 && _PyString_Eq(entry->key, key))) 198 return entry; 199 if (entry->key == dummy && freeslot == NULL) 200 freeslot = entry; 201 } 202 assert(0); /* NOT REACHED */ 203 return 0; 204 204 } 205 205 … … 212 212 set_insert_key(register PySetObject *so, PyObject *key, long hash) 213 213 { 214 register setentry *entry; 215 typedef setentry *(*lookupfunc)(PySetObject *, PyObject *, long); 216 217 assert(so->lookup != NULL); 218 entry = so->lookup(so, key, hash); 219 if (entry == NULL) 220 return -1; 221 if (entry->key == NULL) { 222 /* UNUSED */ 223 so->fill++; 224 entry->key = key; 225 entry->hash = hash; 226 so->used++; 227 } else if (entry->key == dummy) { 228 /* DUMMY */ 229 entry->key = key; 230 entry->hash = hash; 231 so->used++; 232 Py_DECREF(dummy); 233 } else { 234 /* ACTIVE */ 235 Py_DECREF(key); 236 } 237 return 0; 214 register setentry *entry; 215 216 assert(so->lookup != NULL); 217 entry = so->lookup(so, key, hash); 218 if (entry == NULL) 219 return -1; 220 if (entry->key == NULL) { 221 /* UNUSED */ 222 so->fill++; 223 entry->key = key; 224 entry->hash = hash; 225 so->used++; 226 } else if (entry->key == dummy) { 227 /* DUMMY */ 228 entry->key = key; 229 entry->hash = hash; 230 so->used++; 231 Py_DECREF(dummy); 232 } else { 233 /* ACTIVE */ 234 Py_DECREF(key); 235 } 236 return 0; 238 237 } 239 238 … … 249 248 set_insert_clean(register PySetObject *so, PyObject *key, long hash) 250 249 { 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 250 register size_t i; 251 register size_t perturb; 252 register size_t mask = (size_t)so->mask; 253 setentry *table = so->table; 254 register setentry *entry; 255 256 i = hash & mask; 257 entry = &table[i]; 258 for (perturb = hash; entry->key != NULL; perturb >>= PERTURB_SHIFT) { 259 i = (i << 2) + i + perturb + 1; 260 entry = &table[i & mask]; 261 } 262 so->fill++; 263 entry->key = key; 264 entry->hash = hash; 265 so->used++; 267 266 } 268 267 … … 275 274 set_table_resize(PySetObject *so, Py_ssize_t minused) 276 275 { 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 276 Py_ssize_t newsize; 277 setentry *oldtable, *newtable, *entry; 278 Py_ssize_t i; 279 int is_oldtable_malloced; 280 setentry small_copy[PySet_MINSIZE]; 281 282 assert(minused >= 0); 283 284 /* Find the smallest table size > minused. */ 285 for (newsize = PySet_MINSIZE; 286 newsize <= minused && newsize > 0; 287 newsize <<= 1) 288 ; 289 if (newsize <= 0) { 290 PyErr_NoMemory(); 291 return -1; 292 } 293 294 /* Get space for a new table. */ 295 oldtable = so->table; 296 assert(oldtable != NULL); 297 is_oldtable_malloced = oldtable != so->smalltable; 298 299 if (newsize == PySet_MINSIZE) { 300 /* A large table is shrinking, or we can't get any smaller. */ 301 newtable = so->smalltable; 302 if (newtable == oldtable) { 303 if (so->fill == so->used) { 304 /* No dummies, so no point doing anything. */ 305 return 0; 306 } 307 /* We're not going to resize it, but rebuild the 308 table anyway to purge old dummy entries. 309 Subtle: This is *necessary* if fill==size, 310 as set_lookkey needs at least one virgin slot to 311 terminate failing searches. If fill < size, it's 312 merely desirable, as dummies slow searches. */ 313 assert(so->fill > so->used); 314 memcpy(small_copy, oldtable, sizeof(small_copy)); 315 oldtable = small_copy; 316 } 317 } 318 else { 319 newtable = PyMem_NEW(setentry, newsize); 320 if (newtable == NULL) { 321 PyErr_NoMemory(); 322 return -1; 323 } 324 } 325 326 /* Make the set empty, using the new table. */ 327 assert(newtable != oldtable); 328 so->table = newtable; 329 so->mask = newsize - 1; 330 memset(newtable, 0, sizeof(setentry) * newsize); 331 so->used = 0; 332 i = so->fill; 333 so->fill = 0; 334 335 /* Copy the data over; this is refcount-neutral for active entries; 336 dummy entries aren't copied over, of course */ 337 for (entry = oldtable; i > 0; entry++) { 338 if (entry->key == NULL) { 339 /* UNUSED */ 340 ; 341 } else if (entry->key == dummy) { 342 /* DUMMY */ 343 --i; 344 assert(entry->key == dummy); 345 Py_DECREF(entry->key); 346 } else { 347 /* ACTIVE */ 348 --i; 349 set_insert_clean(so, entry->key, entry->hash); 350 } 351 } 352 353 if (is_oldtable_malloced) 354 PyMem_DEL(oldtable); 355 return 0; 357 356 } 358 357 … … 362 361 set_add_entry(register PySetObject *so, setentry *entry) 363 362 { 364 register Py_ssize_t n_used; 365 366 assert(so->fill <= so->mask); /* at least one empty slot */ 367 n_used = so->used; 368 Py_INCREF(entry->key); 369 if (set_insert_key(so, entry->key, entry->hash) == -1) { 370 Py_DECREF(entry->key); 371 return -1; 372 } 373 if (!(so->used > n_used && so->fill*3 >= (so->mask+1)*2)) 374 return 0; 375 return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4); 363 register Py_ssize_t n_used; 364 PyObject *key = entry->key; 365 long hash = entry->hash; 366 367 assert(so->fill <= so->mask); /* at least one empty slot */ 368 n_used = so->used; 369 Py_INCREF(key); 370 if (set_insert_key(so, key, hash) == -1) { 371 Py_DECREF(key); 372 return -1; 373 } 374 if (!(so->used > n_used && so->fill*3 >= (so->mask+1)*2)) 375 return 0; 376 return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4); 376 377 } 377 378 … … 379 380 set_add_key(register PySetObject *so, PyObject *key) 380 381 { 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 382 register long hash; 383 register Py_ssize_t n_used; 384 385 if (!PyString_CheckExact(key) || 386 (hash = ((PyStringObject *) key)->ob_shash) == -1) { 387 hash = PyObject_Hash(key); 388 if (hash == -1) 389 return -1; 390 } 391 assert(so->fill <= so->mask); /* at least one empty slot */ 392 n_used = so->used; 393 Py_INCREF(key); 394 if (set_insert_key(so, key, hash) == -1) { 395 Py_DECREF(key); 396 return -1; 397 } 398 if (!(so->used > n_used && so->fill*3 >= (so->mask+1)*2)) 399 return 0; 400 return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4); 400 401 } 401 402 … … 405 406 static int 406 407 set_discard_entry(PySetObject *so, setentry *oldentry) 407 { 408 409 410 411 412 413 414 415 416 417 418 419 420 408 { register setentry *entry; 409 PyObject *old_key; 410 411 entry = (so->lookup)(so, oldentry->key, oldentry->hash); 412 if (entry == NULL) 413 return -1; 414 if (entry->key == NULL || entry->key == dummy) 415 return DISCARD_NOTFOUND; 416 old_key = entry->key; 417 Py_INCREF(dummy); 418 entry->key = dummy; 419 so->used--; 420 Py_DECREF(old_key); 421 return DISCARD_FOUND; 421 422 } 422 423 … … 424 425 set_discard_key(PySetObject *so, PyObject *key) 425 426 { 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 427 register long hash; 428 register setentry *entry; 429 PyObject *old_key; 430 431 assert (PyAnySet_Check(so)); 432 if (!PyString_CheckExact(key) || 433 (hash = ((PyStringObject *) key)->ob_shash) == -1) { 434 hash = PyObject_Hash(key); 435 if (hash == -1) 436 return -1; 437 } 438 entry = (so->lookup)(so, key, hash); 439 if (entry == NULL) 440 return -1; 441 if (entry->key == NULL || entry->key == dummy) 442 return DISCARD_NOTFOUND; 443 old_key = entry->key; 444 Py_INCREF(dummy); 445 entry->key = dummy; 446 so->used--; 447 Py_DECREF(old_key); 448 return DISCARD_FOUND; 448 449 } 449 450 … … 451 452 set_clear_internal(PySetObject *so) 452 453 { 453 454 455 456 454 setentry *entry, *table; 455 int table_is_malloced; 456 Py_ssize_t fill; 457 setentry small_copy[PySet_MINSIZE]; 457 458 #ifdef Py_DEBUG 458 459 460 461 462 459 Py_ssize_t i, n; 460 assert (PyAnySet_Check(so)); 461 462 n = so->mask + 1; 463 i = 0; 463 464 #endif 464 465 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 466 table = so->table; 467 assert(table != NULL); 468 table_is_malloced = table != so->smalltable; 469 470 /* This is delicate. During the process of clearing the set, 471 * decrefs can cause the set to mutate. To avoid fatal confusion 472 * (voice of experience), we have to make the set empty before 473 * clearing the slots, and never refer to anything via so->ref while 474 * clearing. 475 */ 476 fill = so->fill; 477 if (table_is_malloced) 478 EMPTY_TO_MINSIZE(so); 479 480 else if (fill > 0) { 481 /* It's a small table with something that needs to be cleared. 482 * Afraid the only safe way is to copy the set entries into 483 * another small table first. 484 */ 485 memcpy(small_copy, table, sizeof(small_copy)); 486 table = small_copy; 487 EMPTY_TO_MINSIZE(so); 488 } 489 /* else it's a small table that's already empty */ 490 491 /* Now we can finally clear things. If C had refcounts, we could 492 * assert that the refcount on table is 1 now, i.e. that this function 493 * has unique access to it, so decref side-effects can't alter it. 494 */ 495 for (entry = table; fill > 0; ++entry) { 495 496 #ifdef Py_DEBUG 496 497 497 assert(i < n); 498 ++i; 498 499 #endif 499 500 501 502 500 if (entry->key) { 501 --fill; 502 Py_DECREF(entry->key); 503 } 503 504 #ifdef Py_DEBUG 504 505 505 else 506 assert(entry->key == NULL); 506 507 #endif 507 508 509 510 511 508 } 509 510 if (table_is_malloced) 511 PyMem_DEL(table); 512 return 0; 512 513 } 513 514 … … 523 524 * 524 525 * CAUTION: In general, it isn't safe to use set_next in a loop that 525 * mutates the table. 526 * mutates the table. 526 527 */ 527 528 static int 528 529 set_next(PySetObject *so, Py_ssize_t *pos_ptr, setentry **entry_ptr) 529 530 { 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 531 Py_ssize_t i; 532 Py_ssize_t mask; 533 register setentry *table; 534 535 assert (PyAnySet_Check(so)); 536 i = *pos_ptr; 537 assert(i >= 0); 538 table = so->table; 539 mask = so->mask; 540 while (i <= mask && (table[i].key == NULL || table[i].key == dummy)) 541 i++; 542 *pos_ptr = i+1; 543 if (i > mask) 544 return 0; 545 assert(table[i].key != NULL); 546 *entry_ptr = &table[i]; 547 return 1; 547 548 } 548 549 … … 550 551 set_dealloc(PySetObject *so) 551 552 { 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 else 570 571 553 register setentry *entry; 554 Py_ssize_t fill = so->fill; 555 PyObject_GC_UnTrack(so); 556 Py_TRASHCAN_SAFE_BEGIN(so) 557 if (so->weakreflist != NULL) 558 PyObject_ClearWeakRefs((PyObject *) so); 559 560 for (entry = so->table; fill > 0; entry++) { 561 if (entry->key) { 562 --fill; 563 Py_DECREF(entry->key); 564 } 565 } 566 if (so->table != so->smalltable) 567 PyMem_DEL(so->table); 568 if (numfree < PySet_MAXFREELIST && PyAnySet_CheckExact(so)) 569 free_list[numfree++] = so; 570 else 571 Py_TYPE(so)->tp_free(so); 572 Py_TRASHCAN_SAFE_END(so) 572 573 } 573 574 … … 575 576 set_tp_print(PySetObject *so, FILE *fp, int flags) 576 577 { 577 578 579 char *emit = "";/* No separator emitted on first pass */580 581 582 583 584 585 586 587 588 589 590 } 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 Py_ReprLeave((PyObject*)so); 609 578 setentry *entry; 579 Py_ssize_t pos=0; 580 char *emit = ""; /* No separator emitted on first pass */ 581 char *separator = ", "; 582 int status = Py_ReprEnter((PyObject*)so); 583 584 if (status != 0) { 585 if (status < 0) 586 return status; 587 Py_BEGIN_ALLOW_THREADS 588 fprintf(fp, "%s(...)", so->ob_type->tp_name); 589 Py_END_ALLOW_THREADS 590 return 0; 591 } 592 593 Py_BEGIN_ALLOW_THREADS 594 fprintf(fp, "%s([", so->ob_type->tp_name); 595 Py_END_ALLOW_THREADS 596 while (set_next(so, &pos, &entry)) { 597 Py_BEGIN_ALLOW_THREADS 598 fputs(emit, fp); 599 Py_END_ALLOW_THREADS 600 emit = separator; 601 if (PyObject_Print(entry->key, fp, 0) != 0) { 602 Py_ReprLeave((PyObject*)so); 603 return -1; 604 } 605 } 606 Py_BEGIN_ALLOW_THREADS 607 fputs("])", fp); 608 Py_END_ALLOW_THREADS 609 Py_ReprLeave((PyObject*)so); 610 return 0; 610 611 } 611 612 … … 613 614 set_repr(PySetObject *so) 614 615 { 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 616 PyObject *keys, *result=NULL, *listrepr; 617 int status = Py_ReprEnter((PyObject*)so); 618 619 if (status != 0) { 620 if (status < 0) 621 return NULL; 622 return PyString_FromFormat("%s(...)", so->ob_type->tp_name); 623 } 624 625 keys = PySequence_List((PyObject *)so); 626 if (keys == NULL) 627 goto done; 628 listrepr = PyObject_Repr(keys); 629 Py_DECREF(keys); 630 if (listrepr == NULL) 631 goto done; 632 633 result = PyString_FromFormat("%s(%s)", so->ob_type->tp_name, 634 PyString_AS_STRING(listrepr)); 635 Py_DECREF(listrepr); 635 636 done: 636 637 637 Py_ReprLeave((PyObject*)so); 638 return result; 638 639 } 639 640 … … 641 642 set_len(PyObject *so) 642 643 { 643 644 return ((PySetObject *)so)->used; 644 645 } 645 646 … … 647 648 set_merge(PySetObject *so, PyObject *otherset) 648 649 { 649 PySetObject *other; 650 register Py_ssize_t i; 651 register setentry *entry; 652 653 assert (PyAnySet_Check(so)); 654 assert (PyAnySet_Check(otherset)); 655 656 other = (PySetObject*)otherset; 657 if (other == so || other->used == 0) 658 /* a.update(a) or a.update({}); nothing to do */ 659 return 0; 660 /* Do one big resize at the start, rather than 661 * incrementally resizing as we insert new keys. Expect 662 * that there will be no (or few) overlapping keys. 663 */ 664 if ((so->fill + other->used)*3 >= (so->mask+1)*2) { 665 if (set_table_resize(so, (so->used + other->used)*2) != 0) 666 return -1; 667 } 668 for (i = 0; i <= other->mask; i++) { 669 entry = &other->table[i]; 670 if (entry->key != NULL && 671 entry->key != dummy) { 672 Py_INCREF(entry->key); 673 if (set_insert_key(so, entry->key, entry->hash) == -1) { 674 Py_DECREF(entry->key); 675 return -1; 676 } 677 } 678 } 679 return 0; 650 PySetObject *other; 651 PyObject *key; 652 long hash; 653 register Py_ssize_t i; 654 register setentry *entry; 655 656 assert (PyAnySet_Check(so)); 657 assert (PyAnySet_Check(otherset)); 658 659 other = (PySetObject*)otherset; 660 if (other == so || other->used == 0) 661 /* a.update(a) or a.update({}); nothing to do */ 662 return 0; 663 /* Do one big resize at the start, rather than 664 * incrementally resizing as we insert new keys. Expect 665 * that there will be no (or few) overlapping keys. 666 */ 667 if ((so->fill + other->used)*3 >= (so->mask+1)*2) { 668 if (set_table_resize(so, (so->used + other->used)*2) != 0) 669 return -1; 670 } 671 for (i = 0; i <= other->mask; i++) { 672 entry = &other->table[i]; 673 key = entry->key; 674 hash = entry->hash; 675 if (key != NULL && 676 key != dummy) { 677 Py_INCREF(key); 678 if (set_insert_key(so, key, hash) == -1) { 679 Py_DECREF(key); 680 return -1; 681 } 682 } 683 } 684 return 0; 680 685 } 681 686 … … 683 688 set_contains_key(PySetObject *so, PyObject *key) 684 689 { 685 686 687 688 689 690 691 692 693 694 695 696 697 698 690 long hash; 691 setentry *entry; 692 693 if (!PyString_CheckExact(key) || 694 (hash = ((PyStringObject *) key)->ob_shash) == -1) { 695 hash = PyObject_Hash(key); 696 if (hash == -1) 697 return -1; 698 } 699 entry = (so->lookup)(so, key, hash); 700 if (entry == NULL) 701 return -1; 702 key = entry->key; 703 return key != NULL && key != dummy; 699 704 } 700 705 … … 702 707 set_contains_entry(PySetObject *so, setentry *entry) 703 708 { 704 705 706 707 708 709 710 key = lu_entry->key; 711 709 PyObject *key; 710 setentry *lu_entry; 711 712 lu_entry = (so->lookup)(so, entry->key, entry->hash); 713 if (lu_entry == NULL) 714 return -1; 715 key = lu_entry->key; 716 return key != NULL && key != dummy; 712 717 } 713 718 … … 715 720 set_pop(PySetObject *so) 716 721 { 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 i = 1;/* skip slot 0 */743 744 745 746 747 748 749 750 751 752 753 754 722 register Py_ssize_t i = 0; 723 register setentry *entry; 724 PyObject *key; 725 726 assert (PyAnySet_Check(so)); 727 if (so->used == 0) { 728 PyErr_SetString(PyExc_KeyError, "pop from an empty set"); 729 return NULL; 730 } 731 732 /* Set entry to "the first" unused or dummy set entry. We abuse 733 * the hash field of slot 0 to hold a search finger: 734 * If slot 0 has a value, use slot 0. 735 * Else slot 0 is being used to hold a search finger, 736 * and we use its hash value as the first index to look. 737 */ 738 entry = &so->table[0]; 739 if (entry->key == NULL || entry->key == dummy) { 740 i = entry->hash; 741 /* The hash field may be a real hash value, or it may be a 742 * legit search finger, or it may be a once-legit search 743 * finger that's out of bounds now because it wrapped around 744 * or the table shrunk -- simply make sure it's in bounds now. 745 */ 746 if (i > so->mask || i < 1) 747 i = 1; /* skip slot 0 */ 748 while ((entry = &so->table[i])->key == NULL || entry->key==dummy) { 749 i++; 750 if (i > so->mask) 751 i = 1; 752 } 753 } 754 key = entry->key; 755 Py_INCREF(dummy); 756 entry->key = dummy; 757 so->used--; 758 so->table[0].hash = i + 1; /* next place to start */ 759 return key; 755 760 } 756 761 … … 761 766 set_traverse(PySetObject *so, visitproc visit, void *arg) 762 767 { 763 764 765 766 767 768 768 Py_ssize_t pos = 0; 769 setentry *entry; 770 771 while (set_next(so, &pos, &entry)) 772 Py_VISIT(entry->key); 773 return 0; 769 774 } 770 775 … … 772 777 frozenset_hash(PyObject *self) 773 778 { 774 775 776 777 778 779 780 781 782 783 784 785 values. The is important because some use cases have many 786 combinations of a small number of elements with nearby 787 hashes so that many distinct combinations collapse to only 788 789 790 791 792 793 794 795 796 779 PySetObject *so = (PySetObject *)self; 780 long h, hash = 1927868237L; 781 setentry *entry; 782 Py_ssize_t pos = 0; 783 784 if (so->hash != -1) 785 return so->hash; 786 787 hash *= PySet_GET_SIZE(self) + 1; 788 while (set_next(so, &pos, &entry)) { 789 /* Work to increase the bit dispersion for closely spaced hash 790 values. The is important because some use cases have many 791 combinations of a small number of elements with nearby 792 hashes so that many distinct combinations collapse to only 793 a handful of distinct hash values. */ 794 h = entry->hash; 795 hash ^= (h ^ (h << 16) ^ 89869747L) * 3644798167u; 796 } 797 hash = hash * 69069L + 907133923L; 798 if (hash == -1) 799 hash = 590923713L; 800 so->hash = hash; 801 return hash; 797 802 } 798 803 … … 800 805 801 806 typedef struct { 802 803 804 805 806 807 PyObject_HEAD 808 PySetObject *si_set; /* Set to NULL when iterator is exhausted */ 809 Py_ssize_t si_used; 810 Py_ssize_t si_pos; 811 Py_ssize_t len; 807 812 } setiterobject; 808 813 … … 810 815 setiter_dealloc(setiterobject *si) 811 816 { 812 813 817 Py_XDECREF(si->si_set); 818 PyObject_GC_Del(si); 814 819 } 815 820 … … 817 822 setiter_traverse(setiterobject *si, visitproc visit, void *arg) 818 823 { 819 820 824 Py_VISIT(si->si_set); 825 return 0; 821 826 } 822 827 … … 824 829 setiter_len(setiterobject *si) 825 830 { 826 827 828 829 831 Py_ssize_t len = 0; 832 if (si->si_set != NULL && si->si_used == si->si_set->used) 833 len = si->len; 834 return PyInt_FromLong(len); 830 835 } 831 836 … … 833 838 834 839 static PyMethodDef setiter_methods[] = { 835 836 {NULL, NULL}/* sentinel */840 {"__length_hint__", (PyCFunction)setiter_len, METH_NOARGS, length_hint_doc}, 841 {NULL, NULL} /* sentinel */ 837 842 }; 838 843 839 844 static PyObject *setiter_iternext(setiterobject *si) 840 845 { 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 846 PyObject *key; 847 register Py_ssize_t i, mask; 848 register setentry *entry; 849 PySetObject *so = si->si_set; 850 851 if (so == NULL) 852 return NULL; 853 assert (PyAnySet_Check(so)); 854 855 if (si->si_used != so->used) { 856 PyErr_SetString(PyExc_RuntimeError, 857 "Set changed size during iteration"); 858 si->si_used = -1; /* Make this state sticky */ 859 return NULL; 860 } 861 862 i = si->si_pos; 863 assert(i>=0); 864 entry = so->table; 865 mask = so->mask; 866 while (i <= mask && (entry[i].key == NULL || entry[i].key == dummy)) 867 i++; 868 si->si_pos = i+1; 869 if (i > mask) 870 goto fail; 871 si->len--; 872 key = entry[i].key; 873 Py_INCREF(key); 874 return key; 870 875 871 876 fail: 872 873 874 877 Py_DECREF(so); 878 si->si_set = NULL; 879 return NULL; 875 880 } 876 881 877 882 static PyTypeObject PySetIter_Type = { 878 879 "setiterator",/* tp_name */880 sizeof(setiterobject),/* tp_basicsize */881 0,/* tp_itemsize */882 883 (destructor)setiter_dealloc,/* tp_dealloc */884 0,/* tp_print */885 0,/* tp_getattr */886 0,/* tp_setattr */887 0,/* tp_compare */888 0,/* tp_repr */889 0,/* tp_as_number */890 0,/* tp_as_sequence */891 0,/* tp_as_mapping */892 0,/* tp_hash */893 0,/* tp_call */894 0,/* tp_str */895 PyObject_GenericGetAttr,/* tp_getattro */896 0,/* tp_setattro */897 0,/* tp_as_buffer */898 899 0,/* tp_doc */900 (traverseproc)setiter_traverse,/* tp_traverse */901 0,/* tp_clear */902 0,/* tp_richcompare */903 0,/* tp_weaklistoffset */904 PyObject_SelfIter,/* tp_iter */905 (iternextfunc)setiter_iternext,/* tp_iternext */906 setiter_methods,/* tp_methods */907 883 PyVarObject_HEAD_INIT(&PyType_Type, 0) 884 "setiterator", /* tp_name */ 885 sizeof(setiterobject), /* tp_basicsize */ 886 0, /* tp_itemsize */ 887 /* methods */ 888 (destructor)setiter_dealloc, /* tp_dealloc */ 889 0, /* tp_print */ 890 0, /* tp_getattr */ 891 0, /* tp_setattr */ 892 0, /* tp_compare */ 893 0, /* tp_repr */ 894 0, /* tp_as_number */ 895 0, /* tp_as_sequence */ 896 0, /* tp_as_mapping */ 897 0, /* tp_hash */ 898 0, /* tp_call */ 899 0, /* tp_str */ 900 PyObject_GenericGetAttr, /* tp_getattro */ 901 0, /* tp_setattro */ 902 0, /* tp_as_buffer */ 903 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */ 904 0, /* tp_doc */ 905 (traverseproc)setiter_traverse, /* tp_traverse */ 906 0, /* tp_clear */ 907 0, /* tp_richcompare */ 908 0, /* tp_weaklistoffset */ 909 PyObject_SelfIter, /* tp_iter */ 910 (iternextfunc)setiter_iternext, /* tp_iternext */ 911 setiter_methods, /* tp_methods */ 912 0, 908 913 }; 909 914 … … 911 916 set_iter(PySetObject *so) 912 917 { 913 914 915 916 917 918 919 920 921 922 918 setiterobject *si = PyObject_GC_New(setiterobject, &PySetIter_Type); 919 if (si == NULL) 920 return NULL; 921 Py_INCREF(so); 922 si->si_set = so; 923 si->si_used = so->used; 924 si->si_pos = 0; 925 si->len = so->used; 926 _PyObject_GC_TRACK(si); 927 return (PyObject *)si; 923 928 } 924 929 … … 926 931 set_update_internal(PySetObject *so, PyObject *other) 927 932 { 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 }970 971 972 973 974 975 933 PyObject *key, *it; 934 935 if (PyAnySet_Check(other)) 936 return set_merge(so, other); 937 938 if (PyDict_CheckExact(other)) { 939 PyObject *value; 940 Py_ssize_t pos = 0; 941 long hash; 942 Py_ssize_t dictsize = PyDict_Size(other); 943 944 /* Do one big resize at the start, rather than 945 * incrementally resizing as we insert new keys. Expect 946 * that there will be no (or few) overlapping keys. 947 */ 948 if (dictsize == -1) 949 return -1; 950 if ((so->fill + dictsize)*3 >= (so->mask+1)*2) { 951 if (set_table_resize(so, (so->used + dictsize)*2) != 0) 952 return -1; 953 } 954 while (_PyDict_Next(other, &pos, &key, &value, &hash)) { 955 setentry an_entry; 956 957 an_entry.hash = hash; 958 an_entry.key = key; 959 if (set_add_entry(so, &an_entry) == -1) 960 return -1; 961 } 962 return 0; 963 } 964 965 it = PyObject_GetIter(other); 966 if (it == NULL) 967 return -1; 968 969 while ((key = PyIter_Next(it)) != NULL) { 970 if (set_add_key(so, key) == -1) { 971 Py_DECREF(it); 972 Py_DECREF(key); 973 return -1; 974 } 975 Py_DECREF(key); 976 } 977 Py_DECREF(it); 978 if (PyErr_Occurred()) 979 return -1; 980 return 0; 976 981 } 977 982 … … 979 984 set_update(PySetObject *so, PyObject *args) 980 985 { 981 982 983 984 985 986 987 988 989 } 990 991 PyDoc_STRVAR(update_doc, 986 Py_ssize_t i; 987 988 for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) { 989 PyObject *other = PyTuple_GET_ITEM(args, i); 990 if (set_update_internal(so, other) == -1) 991 return NULL; 992 } 993 Py_RETURN_NONE; 994 } 995 996 PyDoc_STRVAR(update_doc, 992 997 "Update a set with the union of itself and others."); 993 998 … … 995 1000 make_new_set(PyTypeObject *type, PyObject *iterable) 996 1001 { 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1002 register PySetObject *so = NULL; 1003 1004 if (dummy == NULL) { /* Auto-initialize dummy */ 1005 dummy = PyString_FromString("<dummy key>"); 1006 if (dummy == NULL) 1007 return NULL; 1008 } 1009 1010 /* create PySetObject structure */ 1011 if (numfree && 1012 (type == &PySet_Type || type == &PyFrozenSet_Type)) { 1013 so = free_list[--numfree]; 1014 assert (so != NULL && PyAnySet_CheckExact(so)); 1015 Py_TYPE(so) = type; 1016 _Py_NewReference((PyObject *)so); 1017 EMPTY_TO_MINSIZE(so); 1018 PyObject_GC_Track(so); 1019 } else { 1020 so = (PySetObject *)type->tp_alloc(type, 0); 1021 if (so == NULL) 1022 return NULL; 1023 /* tp_alloc has already zeroed the structure */ 1024 assert(so->table == NULL && so->fill == 0 && so->used == 0); 1025 INIT_NONZERO_SET_SLOTS(so); 1026 } 1027 1028 so->lookup = set_lookkey_string; 1029 so->weakreflist = NULL; 1030 1031 if (iterable != NULL) { 1032 if (set_update_internal(so, iterable) == -1) { 1033 Py_DECREF(so); 1034 return NULL; 1035 } 1036 } 1037 1038 return (PyObject *)so; 1034 1039 } 1035 1040 … … 1040 1045 frozenset_new(PyTypeObject *type, PyObject *args, PyObject *kwds) 1041 1046 { 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1047 PyObject *iterable = NULL, *result; 1048 1049 if (type == &PyFrozenSet_Type && !_PyArg_NoKeywords("frozenset()", kwds)) 1050 return NULL; 1051 1052 if (!PyArg_UnpackTuple(args, type->tp_name, 0, 1, &iterable)) 1053 return NULL; 1054 1055 if (type != &PyFrozenSet_Type) 1056 return make_new_set(type, iterable); 1057 1058 if (iterable != NULL) { 1059 /* frozenset(f) is idempotent */ 1060 if (PyFrozenSet_CheckExact(iterable)) { 1061 Py_INCREF(iterable); 1062 return iterable; 1063 } 1064 result = make_new_set(type, iterable); 1065 if (result == NULL || PySet_GET_SIZE(result)) 1066 return result; 1067 Py_DECREF(result); 1068 } 1069 /* The empty frozenset is a singleton */ 1070 if (emptyfrozenset == NULL) 1071 emptyfrozenset = make_new_set(type, NULL); 1072 Py_XINCREF(emptyfrozenset); 1073 return emptyfrozenset; 1069 1074 } 1070 1075 … … 1072 1077 PySet_Fini(void) 1073 1078 { 1074 1075 1076 1077 1078 1079 1080 1081 1082 1079 PySetObject *so; 1080 1081 while (numfree) { 1082 numfree--; 1083 so = free_list[numfree]; 1084 PyObject_GC_Del(so); 1085 } 1086 Py_CLEAR(dummy); 1087 Py_CLEAR(emptyfrozenset); 1083 1088 } 1084 1089 … … 1086 1091 set_new(PyTypeObject *type, PyObject *args, PyObject *kwds) 1087 1092 { 1088 1089 1090 1091 1093 if (type == &PySet_Type && !_PyArg_NoKeywords("set()", kwds)) 1094 return NULL; 1095 1096 return make_new_set(type, NULL); 1092 1097 } 1093 1098 … … 1099 1104 1100 1105 The function always succeeds and it leaves both objects in a stable state. 1101 Useful for creating temporary frozensets from sets for membership testing 1106 Useful for creating temporary frozensets from sets for membership testing 1102 1107 in __contains__(), discard(), and remove(). Also useful for operations 1103 that update in-place (by allowing an intermediate result to be swapped 1108 that update in-place (by allowing an intermediate result to be swapped 1104 1109 into one of the original inputs). 1105 1110 */ … … 1108 1113 set_swap_bodies(PySetObject *a, PySetObject *b) 1109 1114 { 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1115 Py_ssize_t t; 1116 setentry *u; 1117 setentry *(*f)(PySetObject *so, PyObject *key, long hash); 1118 setentry tab[PySet_MINSIZE]; 1119 long h; 1120 1121 t = a->fill; a->fill = b->fill; b->fill = t; 1122 t = a->used; a->used = b->used; b->used = t; 1123 t = a->mask; a->mask = b->mask; b->mask = t; 1124 1125 u = a->table; 1126 if (a->table == a->smalltable) 1127 u = b->smalltable; 1128 a->table = b->table; 1129 if (b->table == b->smalltable) 1130 a->table = a->smalltable; 1131 b->table = u; 1132 1133 f = a->lookup; a->lookup = b->lookup; b->lookup = f; 1134 1135 if (a->table == a->smalltable || b->table == b->smalltable) { 1136 memcpy(tab, a->smalltable, sizeof(tab)); 1137 memcpy(a->smalltable, b->smalltable, sizeof(tab)); 1138 memcpy(b->smalltable, tab, sizeof(tab)); 1139 } 1140 1141 if (PyType_IsSubtype(Py_TYPE(a), &PyFrozenSet_Type) && 1142 PyType_IsSubtype(Py_TYPE(b), &PyFrozenSet_Type)) { 1143 h = a->hash; a->hash = b->hash; b->hash = h; 1144 } else { 1145 a->hash = -1; 1146 b->hash = -1; 1147 } 1143 1148 } 1144 1149 … … 1146 1151 set_copy(PySetObject *so) 1147 1152 { 1148 1153 return make_new_set(Py_TYPE(so), (PyObject *)so); 1149 1154 } 1150 1155 … … 1152 1157 frozenset_copy(PySetObject *so) 1153 1158 { 1154 1155 1156 1157 1158 1159 if (PyFrozenSet_CheckExact(so)) { 1160 Py_INCREF(so); 1161 return (PyObject *)so; 1162 } 1163 return set_copy(so); 1159 1164 } 1160 1165 … … 1164 1169 set_clear(PySetObject *so) 1165 1170 { 1166 1167 1171 set_clear_internal(so); 1172 Py_RETURN_NONE; 1168 1173 } 1169 1174 … … 1173 1178 set_union(PySetObject *so, PyObject *args) 1174 1179 { 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1180 PySetObject *result; 1181 PyObject *other; 1182 Py_ssize_t i; 1183 1184 result = (PySetObject *)set_copy(so); 1185 if (result == NULL) 1186 return NULL; 1187 1188 for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) { 1189 other = PyTuple_GET_ITEM(args, i); 1190 if ((PyObject *)so == other) 1191 continue; 1192 if (set_update_internal(result, other) == -1) { 1193 Py_DECREF(result); 1194 return NULL; 1195 } 1196 } 1197 return (PyObject *)result; 1193 1198 } 1194 1199 … … 1201 1206 set_or(PySetObject *so, PyObject *other) 1202 1207 { 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1208 PySetObject *result; 1209 1210 if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) { 1211 Py_INCREF(Py_NotImplemented); 1212 return Py_NotImplemented; 1213 } 1214 1215 result = (PySetObject *)set_copy(so); 1216 if (result == NULL) 1217 return NULL; 1218 if ((PyObject *)so == other) 1219 return (PyObject *)result; 1220 if (set_update_internal(result, other) == -1) { 1221 Py_DECREF(result); 1222 return NULL; 1223 } 1224 return (PyObject *)result; 1220 1225 } 1221 1226 … … 1223 1228 set_ior(PySetObject *so, PyObject *other) 1224 1229 { 1225 1226 1227 1228 1229 1230 1231 1232 1230 if (!PyAnySet_Check(other)) { 1231 Py_INCREF(Py_NotImplemented); 1232 return Py_NotImplemented; 1233 } 1234 if (set_update_internal(so, other) == -1) 1235 return NULL; 1236 Py_INCREF(so); 1237 return (PyObject *)so; 1233 1238 } 1234 1239 … … 1236 1241 set_intersection(PySetObject *so, PyObject *other) 1237 1242 { 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 if (PyAnySet_Check(other)) { 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1243 PySetObject *result; 1244 PyObject *key, *it, *tmp; 1245 1246 if ((PyObject *)so == other) 1247 return set_copy(so); 1248 1249 result = (PySetObject *)make_new_set(Py_TYPE(so), NULL); 1250 if (result == NULL) 1251 return NULL; 1252 1253 if (PyAnySet_Check(other)) { 1254 Py_ssize_t pos = 0; 1255 setentry *entry; 1256 1257 if (PySet_GET_SIZE(other) > PySet_GET_SIZE(so)) { 1258 tmp = (PyObject *)so; 1259 so = (PySetObject *)other; 1260 other = tmp; 1261 } 1262 1263 while (set_next((PySetObject *)other, &pos, &entry)) { 1264 int rv = set_contains_entry(so, entry); 1265 if (rv == -1) { 1266 Py_DECREF(result); 1267 return NULL; 1268 } 1269 if (rv) { 1270 if (set_add_entry(result, entry) == -1) { 1271 Py_DECREF(result); 1272 return NULL; 1273 } 1274 } 1275 } 1276 return (PyObject *)result; 1277 } 1278 1279 it = PyObject_GetIter(other); 1280 if (it == NULL) { 1281 Py_DECREF(result); 1282 return NULL; 1283 } 1284 1285 while ((key = PyIter_Next(it)) != NULL) { 1286 int rv; 1287 setentry entry; 1288 long hash = PyObject_Hash(key); 1289 1290 if (hash == -1) { 1291 Py_DECREF(it); 1292 Py_DECREF(result); 1293 Py_DECREF(key); 1294 return NULL; 1295 } 1296 entry.hash = hash; 1297 entry.key = key; 1298 rv = set_contains_entry(so, &entry); 1299 if (rv == -1) { 1300 Py_DECREF(it); 1301 Py_DECREF(result); 1302 Py_DECREF(key); 1303 return NULL; 1304 } 1305 if (rv) { 1306 if (set_add_entry(result, &entry) == -1) { 1307 Py_DECREF(it); 1308 Py_DECREF(result); 1309 Py_DECREF(key); 1310 return NULL; 1311 } 1312 } 1313 Py_DECREF(key); 1314 } 1315 Py_DECREF(it); 1316 if (PyErr_Occurred()) { 1317 Py_DECREF(result); 1318 return NULL; 1319 } 1320 return (PyObject *)result; 1316 1321 } 1317 1322 … … 1319 1324 set_intersection_multi(PySetObject *so, PyObject *args) 1320 1325 { 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1326 Py_ssize_t i; 1327 PyObject *result = (PyObject *)so; 1328 1329 if (PyTuple_GET_SIZE(args) == 0) 1330 return set_copy(so); 1331 1332 Py_INCREF(so); 1333 for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) { 1334 PyObject *other = PyTuple_GET_ITEM(args, i); 1335 PyObject *newresult = set_intersection((PySetObject *)result, other); 1336 if (newresult == NULL) { 1337 Py_DECREF(result); 1338 return NULL; 1339 } 1340 Py_DECREF(result); 1341 result = newresult; 1342 } 1343 return result; 1339 1344 } 1340 1345 … … 1347 1352 set_intersection_update(PySetObject *so, PyObject *other) 1348 1353 { 1349 1350 1351 1352 1353 1354 1355 1356 1354 PyObject *tmp; 1355 1356 tmp = set_intersection(so, other); 1357 if (tmp == NULL) 1358 return NULL; 1359 set_swap_bodies(so, (PySetObject *)tmp); 1360 Py_DECREF(tmp); 1361 Py_RETURN_NONE; 1357 1362 } 1358 1363 … … 1360 1365 set_intersection_update_multi(PySetObject *so, PyObject *args) 1361 1366 { 1362 1363 1364 1365 1366 1367 1368 1369 1367 PyObject *tmp; 1368 1369 tmp = set_intersection_multi(so, args); 1370 if (tmp == NULL) 1371 return NULL; 1372 set_swap_bodies(so, (PySetObject *)tmp); 1373 Py_DECREF(tmp); 1374 Py_RETURN_NONE; 1370 1375 } 1371 1376 … … 1376 1381 set_and(PySetObject *so, PyObject *other) 1377 1382 { 1378 1379 1380 1381 1382 1383 if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) { 1384 Py_INCREF(Py_NotImplemented); 1385 return Py_NotImplemented; 1386 } 1387 return set_intersection(so, other); 1383 1388 } 1384 1389 … … 1386 1391 set_iand(PySetObject *so, PyObject *other) 1387 1392 { 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1393 PyObject *result; 1394 1395 if (!PyAnySet_Check(other)) { 1396 Py_INCREF(Py_NotImplemented); 1397 return Py_NotImplemented; 1398 } 1399 result = set_intersection_update(so, other); 1400 if (result == NULL) 1401 return NULL; 1402 Py_DECREF(result); 1403 Py_INCREF(so); 1404 return (PyObject *)so; 1400 1405 } 1401 1406 … … 1403 1408 set_isdisjoint(PySetObject *so, PyObject *other) 1404 1409 { 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 if (PyAnySet_CheckExact(other)) { 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1410 PyObject *key, *it, *tmp; 1411 1412 if ((PyObject *)so == other) { 1413 if (PySet_GET_SIZE(so) == 0) 1414 Py_RETURN_TRUE; 1415 else 1416 Py_RETURN_FALSE; 1417 } 1418 1419 if (PyAnySet_CheckExact(other)) { 1420 Py_ssize_t pos = 0; 1421 setentry *entry; 1422 1423 if (PySet_GET_SIZE(other) > PySet_GET_SIZE(so)) { 1424 tmp = (PyObject *)so; 1425 so = (PySetObject *)other; 1426 other = tmp; 1427 } 1428 while (set_next((PySetObject *)other, &pos, &entry)) { 1429 int rv = set_contains_entry(so, entry); 1430 if (rv == -1) 1431 return NULL; 1432 if (rv) 1433 Py_RETURN_FALSE; 1434 } 1435 Py_RETURN_TRUE; 1436 } 1437 1438 it = PyObject_GetIter(other); 1439 if (it == NULL) 1440 return NULL; 1441 1442 while ((key = PyIter_Next(it)) != NULL) { 1443 int rv; 1444 setentry entry; 1445 long hash = PyObject_Hash(key); 1446 1447 if (hash == -1) { 1448 Py_DECREF(key); 1449 Py_DECREF(it); 1450 return NULL; 1451 } 1452 entry.hash = hash; 1453 entry.key = key; 1454 rv = set_contains_entry(so, &entry); 1455 Py_DECREF(key); 1456 if (rv == -1) { 1457 Py_DECREF(it); 1458 return NULL; 1459 } 1460 if (rv) { 1461 Py_DECREF(it); 1462 Py_RETURN_FALSE; 1463 } 1464 } 1465 Py_DECREF(it); 1466 if (PyErr_Occurred()) 1467 return NULL; 1468 Py_RETURN_TRUE; 1464 1469 } 1465 1470 … … 1470 1475 set_difference_update_internal(PySetObject *so, PyObject *other) 1471 1476 { 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1477 if ((PyObject *)so == other) 1478 return set_clear_internal(so); 1479 1480 if (PyAnySet_Check(other)) { 1481 setentry *entry; 1482 Py_ssize_t pos = 0; 1483 1484 while (set_next((PySetObject *)other, &pos, &entry)) 1485 if (set_discard_entry(so, entry) == -1) 1486 return -1; 1487 } else { 1488 PyObject *key, *it; 1489 it = PyObject_GetIter(other); 1490 if (it == NULL) 1491 return -1; 1492 1493 while ((key = PyIter_Next(it)) != NULL) { 1494 if (set_discard_key(so, key) == -1) { 1495 Py_DECREF(it); 1496 Py_DECREF(key); 1497 return -1; 1498 } 1499 Py_DECREF(key); 1500 } 1501 Py_DECREF(it); 1502 if (PyErr_Occurred()) 1503 return -1; 1504 } 1505 /* If more than 1/5 are dummies, then resize them away. */ 1506 if ((so->fill - so->used) * 5 < so->mask) 1507 return 0; 1508 return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4); 1504 1509 } 1505 1510 … … 1507 1512 set_difference_update(PySetObject *so, PyObject *args) 1508 1513 { 1509 1510 1511 1512 1513 1514 1515 1516 1514 Py_ssize_t i; 1515 1516 for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) { 1517 PyObject *other = PyTuple_GET_ITEM(args, i); 1518 if (set_difference_update_internal(so, other) == -1) 1519 return NULL; 1520 } 1521 Py_RETURN_NONE; 1517 1522 } 1518 1523 … … 1523 1528 set_difference(PySetObject *so, PyObject *other) 1524 1529 { 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1530 PyObject *result; 1531 setentry *entry; 1532 Py_ssize_t pos = 0; 1533 1534 if (!PyAnySet_Check(other) && !PyDict_CheckExact(other)) { 1535 result = set_copy(so); 1536 if (result == NULL) 1537 return NULL; 1538 if (set_difference_update_internal((PySetObject *)result, other) != -1) 1539 return result; 1540 Py_DECREF(result); 1541 return NULL; 1542 } 1543 1544 result = make_new_set(Py_TYPE(so), NULL); 1545 if (result == NULL) 1546 return NULL; 1547 1548 if (PyDict_CheckExact(other)) { 1549 while (set_next(so, &pos, &entry)) { 1550 setentry entrycopy; 1551 entrycopy.hash = entry->hash; 1552 entrycopy.key = entry->key; 1553 if (!_PyDict_Contains(other, entry->key, entry->hash)) { 1554 if (set_add_entry((PySetObject *)result, &entrycopy) == -1) { 1555 Py_DECREF(result); 1556 return NULL; 1557 } 1558 } 1559 } 1560 return result; 1561 } 1562 1563 while (set_next(so, &pos, &entry)) { 1564 int rv = set_contains_entry((PySetObject *)other, entry); 1565 if (rv == -1) { 1566 Py_DECREF(result); 1567 return NULL; 1568 } 1569 if (!rv) { 1570 if (set_add_entry((PySetObject *)result, entry) == -1) { 1571 Py_DECREF(result); 1572 return NULL; 1573 } 1574 } 1575 } 1576 return result; 1572 1577 } 1573 1578 … … 1575 1580 set_difference_multi(PySetObject *so, PyObject *args) 1576 1581 { 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1582 Py_ssize_t i; 1583 PyObject *result, *other; 1584 1585 if (PyTuple_GET_SIZE(args) == 0) 1586 return set_copy(so); 1587 1588 other = PyTuple_GET_ITEM(args, 0); 1589 result = set_difference(so, other); 1590 if (result == NULL) 1591 return NULL; 1592 1593 for (i=1 ; i<PyTuple_GET_SIZE(args) ; i++) { 1594 other = PyTuple_GET_ITEM(args, i); 1595 if (set_difference_update_internal((PySetObject *)result, other) == -1) { 1596 Py_DECREF(result); 1597 return NULL; 1598 } 1599 } 1600 return result; 1596 1601 } 1597 1602 … … 1603 1608 set_sub(PySetObject *so, PyObject *other) 1604 1609 { 1605 1606 1607 1608 1609 1610 if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) { 1611 Py_INCREF(Py_NotImplemented); 1612 return Py_NotImplemented; 1613 } 1614 return set_difference(so, other); 1610 1615 } 1611 1616 … … 1613 1618 set_isub(PySetObject *so, PyObject *other) 1614 1619 { 1615 1616 1617 1618 1619 1620 1621 1622 1620 if (!PyAnySet_Check(other)) { 1621 Py_INCREF(Py_NotImplemented); 1622 return Py_NotImplemented; 1623 } 1624 if (set_difference_update_internal(so, other) == -1) 1625 return NULL; 1626 Py_INCREF(so); 1627 return (PyObject *)so; 1623 1628 } 1624 1629 … … 1626 1631 set_symmetric_difference_update(PySetObject *so, PyObject *other) 1627 1632 { 1628 PySetObject *otherset; 1629 PyObject *key; 1630 Py_ssize_t pos = 0; 1631 setentry *entry; 1632 1633 if ((PyObject *)so == other) 1634 return set_clear(so); 1635 1636 if (PyDict_CheckExact(other)) { 1637 PyObject *value; 1638 int rv; 1639 long hash; 1640 while (_PyDict_Next(other, &pos, &key, &value, &hash)) { 1641 setentry an_entry; 1642 1643 an_entry.hash = hash; 1644 an_entry.key = key; 1645 rv = set_discard_entry(so, &an_entry); 1646 if (rv == -1) 1647 return NULL; 1648 if (rv == DISCARD_NOTFOUND) { 1649 if (set_add_entry(so, &an_entry) == -1) 1650 return NULL; 1651 } 1652 } 1653 Py_RETURN_NONE; 1654 } 1655 1656 if (PyAnySet_Check(other)) { 1657 Py_INCREF(other); 1658 otherset = (PySetObject *)other; 1659 } else { 1660 otherset = (PySetObject *)make_new_set(Py_TYPE(so), other); 1661 if (otherset == NULL) 1662 return NULL; 1663 } 1664 1665 while (set_next(otherset, &pos, &entry)) { 1666 int rv = set_discard_entry(so, entry); 1667 if (rv == -1) { 1668 Py_DECREF(otherset); 1669 return NULL; 1670 } 1671 if (rv == DISCARD_NOTFOUND) { 1672 if (set_add_entry(so, entry) == -1) { 1673 Py_DECREF(otherset); 1674 return NULL; 1675 } 1676 } 1677 } 1678 Py_DECREF(otherset); 1679 Py_RETURN_NONE; 1633 PySetObject *otherset; 1634 PyObject *key; 1635 Py_ssize_t pos = 0; 1636 setentry *entry; 1637 1638 if ((PyObject *)so == other) 1639 return set_clear(so); 1640 1641 if (PyDict_CheckExact(other)) { 1642 PyObject *value; 1643 int rv; 1644 long hash; 1645 while (_PyDict_Next(other, &pos, &key, &value, &hash)) { 1646 setentry an_entry; 1647 1648 Py_INCREF(key); 1649 an_entry.hash = hash; 1650 an_entry.key = key; 1651 1652 rv = set_discard_entry(so, &an_entry); 1653 if (rv == -1) { 1654 Py_DECREF(key); 1655 return NULL; 1656 } 1657 if (rv == DISCARD_NOTFOUND) { 1658 if (set_add_entry(so, &an_entry) == -1) { 1659 Py_DECREF(key); 1660 return NULL; 1661 } 1662 } 1663 Py_DECREF(key); 1664 } 1665 Py_RETURN_NONE; 1666 } 1667 1668 if (PyAnySet_Check(other)) { 1669 Py_INCREF(other); 1670 otherset = (PySetObject *)other; 1671 } else { 1672 otherset = (PySetObject *)make_new_set(Py_TYPE(so), other); 1673 if (otherset == NULL) 1674 return NULL; 1675 } 1676 1677 while (set_next(otherset, &pos, &entry)) { 1678 int rv = set_discard_entry(so, entry); 1679 if (rv == -1) { 1680 Py_DECREF(otherset); 1681 return NULL; 1682 } 1683 if (rv == DISCARD_NOTFOUND) { 1684 if (set_add_entry(so, entry) == -1) { 1685 Py_DECREF(otherset); 1686 return NULL; 1687 } 1688 } 1689 } 1690 Py_DECREF(otherset); 1691 Py_RETURN_NONE; 1680 1692 } 1681 1693 … … 1686 1698 set_symmetric_difference(PySetObject *so, PyObject *other) 1687 1699 { 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1700 PyObject *rv; 1701 PySetObject *otherset; 1702 1703 otherset = (PySetObject *)make_new_set(Py_TYPE(so), other); 1704 if (otherset == NULL) 1705 return NULL; 1706 rv = set_symmetric_difference_update(otherset, (PyObject *)so); 1707 if (rv == NULL) 1708 return NULL; 1709 Py_DECREF(rv); 1710 return (PyObject *)otherset; 1699 1711 } 1700 1712 … … 1707 1719 set_xor(PySetObject *so, PyObject *other) 1708 1720 { 1709 1710 1711 1712 1713 1721 if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) { 1722 Py_INCREF(Py_NotImplemented); 1723 return Py_NotImplemented; 1724 } 1725 return set_symmetric_difference(so, other); 1714 1726 } 1715 1727 … … 1717 1729 set_ixor(PySetObject *so, PyObject *other) 1718 1730 { 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 PyObject *result; 1732 1733 if (!PyAnySet_Check(other)) { 1734 Py_INCREF(Py_NotImplemented); 1735 return Py_NotImplemented; 1736 } 1737 result = set_symmetric_difference_update(so, other); 1738 if (result == NULL) 1739 return NULL; 1740 Py_DECREF(result); 1741 Py_INCREF(so); 1742 return (PyObject *)so; 1731 1743 } 1732 1744 … … 1734 1746 set_issubset(PySetObject *so, PyObject *other) 1735 1747 { 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 if (PySet_GET_SIZE(so) > PySet_GET_SIZE(other)) 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1748 setentry *entry; 1749 Py_ssize_t pos = 0; 1750 1751 if (!PyAnySet_Check(other)) { 1752 PyObject *tmp, *result; 1753 tmp = make_new_set(&PySet_Type, other); 1754 if (tmp == NULL) 1755 return NULL; 1756 result = set_issubset(so, tmp); 1757 Py_DECREF(tmp); 1758 return result; 1759 } 1760 if (PySet_GET_SIZE(so) > PySet_GET_SIZE(other)) 1761 Py_RETURN_FALSE; 1762 1763 while (set_next(so, &pos, &entry)) { 1764 int rv = set_contains_entry((PySetObject *)other, entry); 1765 if (rv == -1) 1766 return NULL; 1767 if (!rv) 1768 Py_RETURN_FALSE; 1769 } 1770 Py_RETURN_TRUE; 1759 1771 } 1760 1772 … … 1764 1776 set_issuperset(PySetObject *so, PyObject *other) 1765 1777 { 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1778 PyObject *tmp, *result; 1779 1780 if (!PyAnySet_Check(other)) { 1781 tmp = make_new_set(&PySet_Type, other); 1782 if (tmp == NULL) 1783 return NULL; 1784 result = set_issuperset(so, tmp); 1785 Py_DECREF(tmp); 1786 return result; 1787 } 1788 return set_issubset((PySetObject *)other, (PyObject *)so); 1777 1789 } 1778 1790 … … 1782 1794 set_richcompare(PySetObject *v, PyObject *w, int op) 1783 1795 { 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 Py_RETURN_FALSE; 1817 1818 1819 1820 1821 1822 1823 1824 1796 PyObject *r1, *r2; 1797 1798 if(!PyAnySet_Check(w)) { 1799 if (op == Py_EQ) 1800 Py_RETURN_FALSE; 1801 if (op == Py_NE) 1802 Py_RETURN_TRUE; 1803 PyErr_SetString(PyExc_TypeError, "can only compare to a set"); 1804 return NULL; 1805 } 1806 switch (op) { 1807 case Py_EQ: 1808 if (PySet_GET_SIZE(v) != PySet_GET_SIZE(w)) 1809 Py_RETURN_FALSE; 1810 if (v->hash != -1 && 1811 ((PySetObject *)w)->hash != -1 && 1812 v->hash != ((PySetObject *)w)->hash) 1813 Py_RETURN_FALSE; 1814 return set_issubset(v, w); 1815 case Py_NE: 1816 r1 = set_richcompare(v, w, Py_EQ); 1817 if (r1 == NULL) 1818 return NULL; 1819 r2 = PyBool_FromLong(PyObject_Not(r1)); 1820 Py_DECREF(r1); 1821 return r2; 1822 case Py_LE: 1823 return set_issubset(v, w); 1824 case Py_GE: 1825 return set_issuperset(v, w); 1826 case Py_LT: 1827 if (PySet_GET_SIZE(v) >= PySet_GET_SIZE(w)) 1828 Py_RETURN_FALSE; 1829 return set_issubset(v, w); 1830 case Py_GT: 1831 if (PySet_GET_SIZE(v) <= PySet_GET_SIZE(w)) 1832 Py_RETURN_FALSE; 1833 return set_issuperset(v, w); 1834 } 1835 Py_INCREF(Py_NotImplemented); 1836 return Py_NotImplemented; 1825 1837 } 1826 1838 … … 1828 1840 set_nocmp(PyObject *self, PyObject *other) 1829 1841 { 1830 1831 1842 PyErr_SetString(PyExc_TypeError, "cannot compare sets using cmp()"); 1843 return -1; 1832 1844 } 1833 1845 … … 1835 1847 set_add(PySetObject *so, PyObject *key) 1836 1848 { 1837 1838 1839 1840 } 1841 1842 PyDoc_STRVAR(add_doc, 1849 if (set_add_key(so, key) == -1) 1850 return NULL; 1851 Py_RETURN_NONE; 1852 } 1853 1854 PyDoc_STRVAR(add_doc, 1843 1855 "Add an element to a set.\n\ 1844 1856 \n\ … … 1848 1860 set_contains(PySetObject *so, PyObject *key) 1849 1861 { 1850 PyObject *tmpkey; 1851 int rv; 1852 1853 rv = set_contains_key(so, key); 1854 if (rv == -1) { 1855 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) 1856 return -1; 1857 PyErr_Clear(); 1858 tmpkey = make_new_set(&PyFrozenSet_Type, NULL); 1859 if (tmpkey == NULL) 1860 return -1; 1861 set_swap_bodies((PySetObject *)tmpkey, (PySetObject *)key); 1862 rv = set_contains(so, tmpkey); 1863 set_swap_bodies((PySetObject *)tmpkey, (PySetObject *)key); 1864 Py_DECREF(tmpkey); 1865 } 1866 return rv; 1862 PyObject *tmpkey; 1863 int rv; 1864 1865 rv = set_contains_key(so, key); 1866 if (rv == -1) { 1867 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) 1868 return -1; 1869 PyErr_Clear(); 1870 tmpkey = make_new_set(&PyFrozenSet_Type, key); 1871 if (tmpkey == NULL) 1872 return -1; 1873 rv = set_contains_key(so, tmpkey); 1874 Py_DECREF(tmpkey); 1875 } 1876 return rv; 1867 1877 } 1868 1878 … … 1870 1880 set_direct_contains(PySetObject *so, PyObject *key) 1871 1881 { 1872 1873 1874 1875 1876 1877 1882 long result; 1883 1884 result = set_contains(so, key); 1885 if (result == -1) 1886 return NULL; 1887 return PyBool_FromLong(result); 1878 1888 } 1879 1889 … … 1883 1893 set_remove(PySetObject *so, PyObject *key) 1884 1894 { 1885 PyObject *tmpkey; 1886 int rv; 1887 1888 rv = set_discard_key(so, key); 1889 if (rv == -1) { 1890 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) 1891 return NULL; 1892 PyErr_Clear(); 1893 tmpkey = make_new_set(&PyFrozenSet_Type, NULL); 1894 if (tmpkey == NULL) 1895 return NULL; 1896 set_swap_bodies((PySetObject *)tmpkey, (PySetObject *)key); 1897 rv = set_discard_key(so, tmpkey); 1898 set_swap_bodies((PySetObject *)tmpkey, (PySetObject *)key); 1899 Py_DECREF(tmpkey); 1900 if (rv == -1) 1901 return NULL; 1902 } 1903 1904 if (rv == DISCARD_NOTFOUND) { 1905 set_key_error(key); 1906 return NULL; 1907 } 1908 Py_RETURN_NONE; 1895 PyObject *tmpkey; 1896 int rv; 1897 1898 rv = set_discard_key(so, key); 1899 if (rv == -1) { 1900 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) 1901 return NULL; 1902 PyErr_Clear(); 1903 tmpkey = make_new_set(&PyFrozenSet_Type, key); 1904 if (tmpkey == NULL) 1905 return NULL; 1906 rv = set_discard_key(so, tmpkey); 1907 Py_DECREF(tmpkey); 1908 if (rv == -1) 1909 return NULL; 1910 } 1911 1912 if (rv == DISCARD_NOTFOUND) { 1913 set_key_error(key); 1914 return NULL; 1915 } 1916 Py_RETURN_NONE; 1909 1917 } 1910 1918 … … 1917 1925 set_discard(PySetObject *so, PyObject *key) 1918 1926 { 1919 PyObject *tmpkey, *result; 1920 int rv; 1921 1922 rv = set_discard_key(so, key); 1923 if (rv == -1) { 1924 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) 1925 return NULL; 1926 PyErr_Clear(); 1927 tmpkey = make_new_set(&PyFrozenSet_Type, NULL); 1928 if (tmpkey == NULL) 1929 return NULL; 1930 set_swap_bodies((PySetObject *)tmpkey, (PySetObject *)key); 1931 result = set_discard(so, tmpkey); 1932 set_swap_bodies((PySetObject *)tmpkey, (PySetObject *)key); 1933 Py_DECREF(tmpkey); 1934 return result; 1935 } 1936 Py_RETURN_NONE; 1927 PyObject *tmpkey; 1928 int rv; 1929 1930 rv = set_discard_key(so, key); 1931 if (rv == -1) { 1932 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) 1933 return NULL; 1934 PyErr_Clear(); 1935 tmpkey = make_new_set(&PyFrozenSet_Type, key); 1936 if (tmpkey == NULL) 1937 return NULL; 1938 rv = set_discard_key(so, tmpkey); 1939 Py_DECREF(tmpkey); 1940 if (rv == -1) 1941 return NULL; 1942 } 1943 Py_RETURN_NONE; 1937 1944 } 1938 1945 … … 1940 1947 "Remove an element from a set if it is a member.\n\ 1941 1948 \n\ 1942 If the element is not a member, do nothing."); 1949 If the element is not a member, do nothing."); 1943 1950 1944 1951 static PyObject * 1945 1952 set_reduce(PySetObject *so) 1946 1953 { 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1954 PyObject *keys=NULL, *args=NULL, *result=NULL, *dict=NULL; 1955 1956 keys = PySequence_List((PyObject *)so); 1957 if (keys == NULL) 1958 goto done; 1959 args = PyTuple_Pack(1, keys); 1960 if (args == NULL) 1961 goto done; 1962 dict = PyObject_GetAttrString((PyObject *)so, "__dict__"); 1963 if (dict == NULL) { 1964 PyErr_Clear(); 1965 dict = Py_None; 1966 Py_INCREF(dict); 1967 } 1968 result = PyTuple_Pack(3, Py_TYPE(so), args, dict); 1962 1969 done: 1963 1964 1965 1966 1970 Py_XDECREF(args); 1971 Py_XDECREF(keys); 1972 Py_XDECREF(dict); 1973 return result; 1967 1974 } 1968 1975 … … 1972 1979 set_sizeof(PySetObject *so) 1973 1980 { 1974 1975 1976 1977 1978 1979 1981 Py_ssize_t res; 1982 1983 res = sizeof(PySetObject); 1984 if (so->table != so->smalltable) 1985 res = res + (so->mask + 1) * sizeof(setentry); 1986 return PyInt_FromSsize_t(res); 1980 1987 } 1981 1988 … … 1984 1991 set_init(PySetObject *self, PyObject *args, PyObject *kwds) 1985 1992 { 1986 PyObject *iterable = NULL; 1987 1988 if (!PyAnySet_Check(self)) 1989 return -1; 1990 if (!PyArg_UnpackTuple(args, Py_TYPE(self)->tp_name, 0, 1, &iterable)) 1991 return -1; 1992 set_clear_internal(self); 1993 self->hash = -1; 1994 if (iterable == NULL) 1995 return 0; 1996 return set_update_internal(self, iterable); 1993 PyObject *iterable = NULL; 1994 1995 if (!PyAnySet_Check(self)) 1996 return -1; 1997 if (PySet_Check(self) && !_PyArg_NoKeywords("set()", kwds)) 1998 return -1; 1999 if (!PyArg_UnpackTuple(args, Py_TYPE(self)->tp_name, 0, 1, &iterable)) 2000 return -1; 2001 set_clear_internal(self); 2002 self->hash = -1; 2003 if (iterable == NULL) 2004 return 0; 2005 return set_update_internal(self, iterable); 1997 2006 } 1998 2007 1999 2008 static PySequenceMethods set_as_sequence = { 2000 set_len,/* sq_length */2001 0,/* sq_concat */2002 0,/* sq_repeat */2003 0,/* sq_item */2004 0,/* sq_slice */2005 0,/* sq_ass_item */2006 0,/* sq_ass_slice */2007 (objobjproc)set_contains,/* sq_contains */2009 set_len, /* sq_length */ 2010 0, /* sq_concat */ 2011 0, /* sq_repeat */ 2012 0, /* sq_item */ 2013 0, /* sq_slice */ 2014 0, /* sq_ass_item */ 2015 0, /* sq_ass_slice */ 2016 (objobjproc)set_contains, /* sq_contains */ 2008 2017 }; 2009 2018 … … 2018 2027 2019 2028 static PyMethodDef set_methods[] = { 2020 {"add", (PyCFunction)set_add,METH_O,2021 2022 {"clear", (PyCFunction)set_clear,METH_NOARGS,2023 2024 {"__contains__",(PyCFunction)set_direct_contains,METH_O | METH_COEXIST,2025 2026 {"copy", (PyCFunction)set_copy,METH_NOARGS,2027 2028 {"discard", (PyCFunction)set_discard,METH_O,2029 2030 {"difference", (PyCFunction)set_difference_multi,METH_VARARGS,2031 2032 {"difference_update", (PyCFunction)set_difference_update,METH_VARARGS,2033 2034 {"intersection",(PyCFunction)set_intersection_multi,METH_VARARGS,2035 2036 {"intersection_update",(PyCFunction)set_intersection_update_multi,METH_VARARGS,2037 2038 {"isdisjoint", (PyCFunction)set_isdisjoint,METH_O,2039 2040 {"issubset", (PyCFunction)set_issubset,METH_O,2041 2042 {"issuperset", (PyCFunction)set_issuperset,METH_O,2043 2044 {"pop", (PyCFunction)set_pop,METH_NOARGS,2045 2046 {"__reduce__", (PyCFunction)set_reduce,METH_NOARGS,2047 2048 {"remove", (PyCFunction)set_remove,METH_O,2049 2050 {"__sizeof__", (PyCFunction)set_sizeof,METH_NOARGS,2051 2052 {"symmetric_difference",(PyCFunction)set_symmetric_difference,METH_O,2053 2054 {"symmetric_difference_update",(PyCFunction)set_symmetric_difference_update,METH_O,2055 2029 {"add", (PyCFunction)set_add, METH_O, 2030 add_doc}, 2031 {"clear", (PyCFunction)set_clear, METH_NOARGS, 2032 clear_doc}, 2033 {"__contains__",(PyCFunction)set_direct_contains, METH_O | METH_COEXIST, 2034 contains_doc}, 2035 {"copy", (PyCFunction)set_copy, METH_NOARGS, 2036 copy_doc}, 2037 {"discard", (PyCFunction)set_discard, METH_O, 2038 discard_doc}, 2039 {"difference", (PyCFunction)set_difference_multi, METH_VARARGS, 2040 difference_doc}, 2041 {"difference_update", (PyCFunction)set_difference_update, METH_VARARGS, 2042 difference_update_doc}, 2043 {"intersection",(PyCFunction)set_intersection_multi, METH_VARARGS, 2044 intersection_doc}, 2045 {"intersection_update",(PyCFunction)set_intersection_update_multi, METH_VARARGS, 2046 intersection_update_doc}, 2047 {"isdisjoint", (PyCFunction)set_isdisjoint, METH_O, 2048 isdisjoint_doc}, 2049 {"issubset", (PyCFunction)set_issubset, METH_O, 2050 issubset_doc}, 2051 {"issuperset", (PyCFunction)set_issuperset, METH_O, 2052 issuperset_doc}, 2053 {"pop", (PyCFunction)set_pop, METH_NOARGS, 2054 pop_doc}, 2055 {"__reduce__", (PyCFunction)set_reduce, METH_NOARGS, 2056 reduce_doc}, 2057 {"remove", (PyCFunction)set_remove, METH_O, 2058 remove_doc}, 2059 {"__sizeof__", (PyCFunction)set_sizeof, METH_NOARGS, 2060 sizeof_doc}, 2061 {"symmetric_difference",(PyCFunction)set_symmetric_difference, METH_O, 2062 symmetric_difference_doc}, 2063 {"symmetric_difference_update",(PyCFunction)set_symmetric_difference_update, METH_O, 2064 symmetric_difference_update_doc}, 2056 2065 #ifdef Py_DEBUG 2057 {"test_c_api", (PyCFunction)test_c_api,METH_NOARGS,2058 2066 {"test_c_api", (PyCFunction)test_c_api, METH_NOARGS, 2067 test_c_api_doc}, 2059 2068 #endif 2060 {"union", (PyCFunction)set_union,METH_VARARGS,2061 2062 {"update", (PyCFunction)set_update,METH_VARARGS,2063 2064 {NULL, NULL}/* sentinel */2069 {"union", (PyCFunction)set_union, METH_VARARGS, 2070 union_doc}, 2071 {"update", (PyCFunction)set_update, METH_VARARGS, 2072 update_doc}, 2073 {NULL, NULL} /* sentinel */ 2065 2074 }; 2066 2075 2067 2076 static PyNumberMethods set_as_number = { 2068 0,/*nb_add*/2069 (binaryfunc)set_sub,/*nb_subtract*/2070 0,/*nb_multiply*/2071 0,/*nb_divide*/2072 0,/*nb_remainder*/2073 0,/*nb_divmod*/2074 0,/*nb_power*/2075 0,/*nb_negative*/2076 0,/*nb_positive*/2077 0,/*nb_absolute*/2078 0,/*nb_nonzero*/2079 0,/*nb_invert*/2080 0,/*nb_lshift*/2081 0,/*nb_rshift*/2082 (binaryfunc)set_and,/*nb_and*/2083 (binaryfunc)set_xor,/*nb_xor*/2084 (binaryfunc)set_or,/*nb_or*/2085 0,/*nb_coerce*/2086 0,/*nb_int*/2087 0,/*nb_long*/2088 0,/*nb_float*/2089 0,/*nb_oct*/2090 0,/*nb_hex*/2091 0,/*nb_inplace_add*/2092 (binaryfunc)set_isub,/*nb_inplace_subtract*/2093 0,/*nb_inplace_multiply*/2094 0,/*nb_inplace_divide*/2095 0,/*nb_inplace_remainder*/2096 0,/*nb_inplace_power*/2097 0,/*nb_inplace_lshift*/2098 0,/*nb_inplace_rshift*/2099 (binaryfunc)set_iand,/*nb_inplace_and*/2100 (binaryfunc)set_ixor,/*nb_inplace_xor*/2101 (binaryfunc)set_ior,/*nb_inplace_or*/2077 0, /*nb_add*/ 2078 (binaryfunc)set_sub, /*nb_subtract*/ 2079 0, /*nb_multiply*/ 2080 0, /*nb_divide*/ 2081 0, /*nb_remainder*/ 2082 0, /*nb_divmod*/ 2083 0, /*nb_power*/ 2084 0, /*nb_negative*/ 2085 0, /*nb_positive*/ 2086 0, /*nb_absolute*/ 2087 0, /*nb_nonzero*/ 2088 0, /*nb_invert*/ 2089 0, /*nb_lshift*/ 2090 0, /*nb_rshift*/ 2091 (binaryfunc)set_and, /*nb_and*/ 2092 (binaryfunc)set_xor, /*nb_xor*/ 2093 (binaryfunc)set_or, /*nb_or*/ 2094 0, /*nb_coerce*/ 2095 0, /*nb_int*/ 2096 0, /*nb_long*/ 2097 0, /*nb_float*/ 2098 0, /*nb_oct*/ 2099 0, /*nb_hex*/ 2100 0, /*nb_inplace_add*/ 2101 (binaryfunc)set_isub, /*nb_inplace_subtract*/ 2102 0, /*nb_inplace_multiply*/ 2103 0, /*nb_inplace_divide*/ 2104 0, /*nb_inplace_remainder*/ 2105 0, /*nb_inplace_power*/ 2106 0, /*nb_inplace_lshift*/ 2107 0, /*nb_inplace_rshift*/ 2108 (binaryfunc)set_iand, /*nb_inplace_and*/ 2109 (binaryfunc)set_ixor, /*nb_inplace_xor*/ 2110 (binaryfunc)set_ior, /*nb_inplace_or*/ 2102 2111 }; 2103 2112 … … 2109 2118 2110 2119 PyTypeObject PySet_Type = { 2111 2112 "set",/* tp_name */2113 sizeof(PySetObject),/* tp_basicsize */2114 0,/* tp_itemsize */2115 2116 (destructor)set_dealloc,/* tp_dealloc */2117 (printfunc)set_tp_print,/* tp_print */2118 0,/* tp_getattr */2119 0,/* tp_setattr */2120 set_nocmp,/* tp_compare */2121 (reprfunc)set_repr,/* tp_repr */2122 &set_as_number,/* tp_as_number */2123 &set_as_sequence,/* tp_as_sequence */2124 0,/* tp_as_mapping */2125 (hashfunc)PyObject_HashNotImplemented,/* tp_hash */2126 0,/* tp_call */2127 0,/* tp_str */2128 PyObject_GenericGetAttr,/* tp_getattro */2129 0,/* tp_setattro */2130 0,/* tp_as_buffer */2131 2132 Py_TPFLAGS_BASETYPE,/* tp_flags */2133 set_doc,/* tp_doc */2134 (traverseproc)set_traverse,/* tp_traverse */2135 (inquiry)set_clear_internal,/* tp_clear */2136 (richcmpfunc)set_richcompare,/* tp_richcompare */2137 offsetof(PySetObject, weakreflist),/* tp_weaklistoffset */2138 (getiterfunc)set_iter,/* tp_iter */2139 0,/* tp_iternext */2140 set_methods,/* tp_methods */2141 0,/* tp_members */2142 0,/* tp_getset */2143 0,/* tp_base */2144 0,/* tp_dict */2145 0,/* tp_descr_get */2146 0,/* tp_descr_set */2147 0,/* tp_dictoffset */2148 (initproc)set_init,/* tp_init */2149 PyType_GenericAlloc,/* tp_alloc */2150 set_new,/* tp_new */2151 PyObject_GC_Del,/* tp_free */2120 PyVarObject_HEAD_INIT(&PyType_Type, 0) 2121 "set", /* tp_name */ 2122 sizeof(PySetObject), /* tp_basicsize */ 2123 0, /* tp_itemsize */ 2124 /* methods */ 2125 (destructor)set_dealloc, /* tp_dealloc */ 2126 (printfunc)set_tp_print, /* tp_print */ 2127 0, /* tp_getattr */ 2128 0, /* tp_setattr */ 2129 set_nocmp, /* tp_compare */ 2130 (reprfunc)set_repr, /* tp_repr */ 2131 &set_as_number, /* tp_as_number */ 2132 &set_as_sequence, /* tp_as_sequence */ 2133 0, /* tp_as_mapping */ 2134 (hashfunc)PyObject_HashNotImplemented, /* tp_hash */ 2135 0, /* tp_call */ 2136 0, /* tp_str */ 2137 PyObject_GenericGetAttr, /* tp_getattro */ 2138 0, /* tp_setattro */ 2139 0, /* tp_as_buffer */ 2140 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_CHECKTYPES | 2141 Py_TPFLAGS_BASETYPE, /* tp_flags */ 2142 set_doc, /* tp_doc */ 2143 (traverseproc)set_traverse, /* tp_traverse */ 2144 (inquiry)set_clear_internal, /* tp_clear */ 2145 (richcmpfunc)set_richcompare, /* tp_richcompare */ 2146 offsetof(PySetObject, weakreflist), /* tp_weaklistoffset */ 2147 (getiterfunc)set_iter, /* tp_iter */ 2148 0, /* tp_iternext */ 2149 set_methods, /* tp_methods */ 2150 0, /* tp_members */ 2151 0, /* tp_getset */ 2152 0, /* tp_base */ 2153 0, /* tp_dict */ 2154 0, /* tp_descr_get */ 2155 0, /* tp_descr_set */ 2156 0, /* tp_dictoffset */ 2157 (initproc)set_init, /* tp_init */ 2158 PyType_GenericAlloc, /* tp_alloc */ 2159 set_new, /* tp_new */ 2160 PyObject_GC_Del, /* tp_free */ 2152 2161 }; 2153 2162 … … 2156 2165 2157 2166 static PyMethodDef frozenset_methods[] = { 2158 {"__contains__",(PyCFunction)set_direct_contains,METH_O | METH_COEXIST,2159 2160 {"copy", (PyCFunction)frozenset_copy,METH_NOARGS,2161 2162 {"difference", (PyCFunction)set_difference_multi,METH_VARARGS,2163 2164 {"intersection",(PyCFunction)set_intersection_multi,METH_VARARGS,2165 2166 {"isdisjoint", (PyCFunction)set_isdisjoint,METH_O,2167 2168 {"issubset", (PyCFunction)set_issubset,METH_O,2169 2170 {"issuperset", (PyCFunction)set_issuperset,METH_O,2171 2172 {"__reduce__", (PyCFunction)set_reduce,METH_NOARGS,2173 2174 {"__sizeof__", (PyCFunction)set_sizeof,METH_NOARGS,2175 2176 {"symmetric_difference",(PyCFunction)set_symmetric_difference,METH_O,2177 2178 {"union", (PyCFunction)set_union,METH_VARARGS,2179 2180 {NULL, NULL}/* sentinel */2167 {"__contains__",(PyCFunction)set_direct_contains, METH_O | METH_COEXIST, 2168 contains_doc}, 2169 {"copy", (PyCFunction)frozenset_copy, METH_NOARGS, 2170 copy_doc}, 2171 {"difference", (PyCFunction)set_difference_multi, METH_VARARGS, 2172 difference_doc}, 2173 {"intersection",(PyCFunction)set_intersection_multi, METH_VARARGS, 2174 intersection_doc}, 2175 {"isdisjoint", (PyCFunction)set_isdisjoint, METH_O, 2176 isdisjoint_doc}, 2177 {"issubset", (PyCFunction)set_issubset, METH_O, 2178 issubset_doc}, 2179 {"issuperset", (PyCFunction)set_issuperset, METH_O, 2180 issuperset_doc}, 2181 {"__reduce__", (PyCFunction)set_reduce, METH_NOARGS, 2182 reduce_doc}, 2183 {"__sizeof__", (PyCFunction)set_sizeof, METH_NOARGS, 2184 sizeof_doc}, 2185 {"symmetric_difference",(PyCFunction)set_symmetric_difference, METH_O, 2186 symmetric_difference_doc}, 2187 {"union", (PyCFunction)set_union, METH_VARARGS, 2188 union_doc}, 2189 {NULL, NULL} /* sentinel */ 2181 2190 }; 2182 2191 2183 2192 static PyNumberMethods frozenset_as_number = { 2184 0,/*nb_add*/2185 (binaryfunc)set_sub,/*nb_subtract*/2186 0,/*nb_multiply*/2187 0,/*nb_divide*/2188 0,/*nb_remainder*/2189 0,/*nb_divmod*/2190 0,/*nb_power*/2191 0,/*nb_negative*/2192 0,/*nb_positive*/2193 0,/*nb_absolute*/2194 0,/*nb_nonzero*/2195 0,/*nb_invert*/2196 0,/*nb_lshift*/2197 0,/*nb_rshift*/2198 (binaryfunc)set_and,/*nb_and*/2199 (binaryfunc)set_xor,/*nb_xor*/2200 (binaryfunc)set_or,/*nb_or*/2193 0, /*nb_add*/ 2194 (binaryfunc)set_sub, /*nb_subtract*/ 2195 0, /*nb_multiply*/ 2196 0, /*nb_divide*/ 2197 0, /*nb_remainder*/ 2198 0, /*nb_divmod*/ 2199 0, /*nb_power*/ 2200 0, /*nb_negative*/ 2201 0, /*nb_positive*/ 2202 0, /*nb_absolute*/ 2203 0, /*nb_nonzero*/ 2204 0, /*nb_invert*/ 2205 0, /*nb_lshift*/ 2206 0, /*nb_rshift*/ 2207 (binaryfunc)set_and, /*nb_and*/ 2208 (binaryfunc)set_xor, /*nb_xor*/ 2209 (binaryfunc)set_or, /*nb_or*/ 2201 2210 }; 2202 2211 … … 2208 2217 2209 2218 PyTypeObject PyFrozenSet_Type = { 2210 2211 "frozenset",/* tp_name */2212 sizeof(PySetObject),/* tp_basicsize */2213 0,/* tp_itemsize */2214 2215 (destructor)set_dealloc,/* tp_dealloc */2216 (printfunc)set_tp_print,/* tp_print */2217 0,/* tp_getattr */2218 0,/* tp_setattr */2219 set_nocmp,/* tp_compare */2220 (reprfunc)set_repr,/* tp_repr */2221 &frozenset_as_number,/* tp_as_number */2222 &set_as_sequence,/* tp_as_sequence */2223 0,/* tp_as_mapping */2224 frozenset_hash,/* tp_hash */2225 0,/* tp_call */2226 0,/* tp_str */2227 PyObject_GenericGetAttr,/* tp_getattro */2228 0,/* tp_setattro */2229 0,/* tp_as_buffer */2230 2231 Py_TPFLAGS_BASETYPE,/* tp_flags */2232 frozenset_doc,/* tp_doc */2233 (traverseproc)set_traverse,/* tp_traverse */2234 (inquiry)set_clear_internal,/* tp_clear */2235 (richcmpfunc)set_richcompare,/* tp_richcompare */2236 offsetof(PySetObject, weakreflist),/* tp_weaklistoffset */2237 (getiterfunc)set_iter,/* tp_iter */2238 0,/* tp_iternext */2239 frozenset_methods,/* tp_methods */2240 0,/* tp_members */2241 0,/* tp_getset */2242 0,/* tp_base */2243 0,/* tp_dict */2244 0,/* tp_descr_get */2245 0,/* tp_descr_set */2246 0,/* tp_dictoffset */2247 0,/* tp_init */2248 PyType_GenericAlloc,/* tp_alloc */2249 frozenset_new,/* tp_new */2250 PyObject_GC_Del,/* tp_free */2219 PyVarObject_HEAD_INIT(&PyType_Type, 0) 2220 "frozenset", /* tp_name */ 2221 sizeof(PySetObject), /* tp_basicsize */ 2222 0, /* tp_itemsize */ 2223 /* methods */ 2224 (destructor)set_dealloc, /* tp_dealloc */ 2225 (printfunc)set_tp_print, /* tp_print */ 2226 0, /* tp_getattr */ 2227 0, /* tp_setattr */ 2228 set_nocmp, /* tp_compare */ 2229 (reprfunc)set_repr, /* tp_repr */ 2230 &frozenset_as_number, /* tp_as_number */ 2231 &set_as_sequence, /* tp_as_sequence */ 2232 0, /* tp_as_mapping */ 2233 frozenset_hash, /* tp_hash */ 2234 0, /* tp_call */ 2235 0, /* tp_str */ 2236 PyObject_GenericGetAttr, /* tp_getattro */ 2237 0, /* tp_setattro */ 2238 0, /* tp_as_buffer */ 2239 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_CHECKTYPES | 2240 Py_TPFLAGS_BASETYPE, /* tp_flags */ 2241 frozenset_doc, /* tp_doc */ 2242 (traverseproc)set_traverse, /* tp_traverse */ 2243 (inquiry)set_clear_internal, /* tp_clear */ 2244 (richcmpfunc)set_richcompare, /* tp_richcompare */ 2245 offsetof(PySetObject, weakreflist), /* tp_weaklistoffset */ 2246 (getiterfunc)set_iter, /* tp_iter */ 2247 0, /* tp_iternext */ 2248 frozenset_methods, /* tp_methods */ 2249 0, /* tp_members */ 2250 0, /* tp_getset */ 2251 0, /* tp_base */ 2252 0, /* tp_dict */ 2253 0, /* tp_descr_get */ 2254 0, /* tp_descr_set */ 2255 0, /* tp_dictoffset */ 2256 0, /* tp_init */ 2257 PyType_GenericAlloc, /* tp_alloc */ 2258 frozenset_new, /* tp_new */ 2259 PyObject_GC_Del, /* tp_free */ 2251 2260 }; 2252 2261 … … 2257 2266 PySet_New(PyObject *iterable) 2258 2267 { 2259 2268 return make_new_set(&PySet_Type, iterable); 2260 2269 } 2261 2270 … … 2263 2272 PyFrozenSet_New(PyObject *iterable) 2264 2273 { 2265 2274 return make_new_set(&PyFrozenSet_Type, iterable); 2266 2275 } 2267 2276 … … 2269 2278 PySet_Size(PyObject *anyset) 2270 2279 { 2271 2272 2273 2274 2275 2280 if (!PyAnySet_Check(anyset)) { 2281 PyErr_BadInternalCall(); 2282 return -1; 2283 } 2284 return PySet_GET_SIZE(anyset); 2276 2285 } 2277 2286 … … 2279 2288 PySet_Clear(PyObject *set) 2280 2289 { 2281 2282 2283 2284 2285 2290 if (!PySet_Check(set)) { 2291 PyErr_BadInternalCall(); 2292 return -1; 2293 } 2294 return set_clear_internal((PySetObject *)set); 2286 2295 } 2287 2296 … … 2289 2298 PySet_Contains(PyObject *anyset, PyObject *key) 2290 2299 { 2291 2292 2293 2294 2295 2300 if (!PyAnySet_Check(anyset)) { 2301 PyErr_BadInternalCall(); 2302 return -1; 2303 } 2304 return set_contains_key((PySetObject *)anyset, key); 2296 2305 } 2297 2306 … … 2299 2308 PySet_Discard(PyObject *set, PyObject *key) 2300 2309 { 2301 2302 2303 2304 2305 2310 if (!PySet_Check(set)) { 2311 PyErr_BadInternalCall(); 2312 return -1; 2313 } 2314 return set_discard_key((PySetObject *)set, key); 2306 2315 } 2307 2316 … … 2309 2318 PySet_Add(PyObject *anyset, PyObject *key) 2310 2319 { 2311 if (!PySet_Check(anyset) && 2312 2313 2314 2315 2316 2320 if (!PySet_Check(anyset) && 2321 (!PyFrozenSet_Check(anyset) || Py_REFCNT(anyset) != 1)) { 2322 PyErr_BadInternalCall(); 2323 return -1; 2324 } 2325 return set_add_key((PySetObject *)anyset, key); 2317 2326 } 2318 2327 … … 2320 2329 _PySet_Next(PyObject *set, Py_ssize_t *pos, PyObject **key) 2321 2330 { 2322 2323 2324 2325 2326 2327 2328 2329 2330 2331 2331 setentry *entry_ptr; 2332 2333 if (!PyAnySet_Check(set)) { 2334 PyErr_BadInternalCall(); 2335 return -1; 2336 } 2337 if (set_next((PySetObject *)set, pos, &entry_ptr) == 0) 2338 return 0; 2339 *key = entry_ptr->key; 2340 return 1; 2332 2341 } 2333 2342 … … 2335 2344 _PySet_NextEntry(PyObject *set, Py_ssize_t *pos, PyObject **key, long *hash) 2336 2345 { 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2346 setentry *entry; 2347 2348 if (!PyAnySet_Check(set)) { 2349 PyErr_BadInternalCall(); 2350 return -1; 2351 } 2352 if (set_next((PySetObject *)set, pos, &entry) == 0) 2353 return 0; 2354 *key = entry->key; 2355 *hash = entry->hash; 2356 return 1; 2348 2357 } 2349 2358 … … 2351 2360 PySet_Pop(PyObject *set) 2352 2361 { 2353 2354 2355 2356 2357 2362 if (!PySet_Check(set)) { 2363 PyErr_BadInternalCall(); 2364 return NULL; 2365 } 2366 return set_pop((PySetObject *)set); 2358 2367 } 2359 2368 … … 2361 2370 _PySet_Update(PyObject *set, PyObject *iterable) 2362 2371 { 2363 2364 2365 2366 2367 2372 if (!PySet_Check(set)) { 2373 PyErr_BadInternalCall(); 2374 return -1; 2375 } 2376 return set_update_internal((PySetObject *)set, iterable); 2368 2377 } 2369 2378 2370 2379 #ifdef Py_DEBUG 2371 2380 2372 /* Test code to be called with any three element set. 2381 /* Test code to be called with any three element set. 2373 2382 Returns True and original set is restored. */ 2374 2383 2375 #define assertRaises(call_return_value, exception) 2376 do {\2377 assert(call_return_value);\2378 assert(PyErr_ExceptionMatches(exception));\2379 PyErr_Clear();\2380 2384 #define assertRaises(call_return_value, exception) \ 2385 do { \ 2386 assert(call_return_value); \ 2387 assert(PyErr_ExceptionMatches(exception)); \ 2388 PyErr_Clear(); \ 2389 } while(0) 2381 2390 2382 2391 static PyObject * 2383 2392 test_c_api(PySetObject *so) 2384 2393 { 2385 Py_ssize_t count; 2386 char *s; 2387 Py_ssize_t i; 2388 PyObject *elem=NULL, *dup=NULL, *t, *f, *dup2, *x; 2389 PyObject *ob = (PyObject *)so; 2390 2391 /* Verify preconditions and exercise type/size checks */ 2392 assert(PyAnySet_Check(ob)); 2393 assert(PyAnySet_CheckExact(ob)); 2394 assert(!PyFrozenSet_CheckExact(ob)); 2395 assert(PySet_Size(ob) == 3); 2396 assert(PySet_GET_SIZE(ob) == 3); 2397 2398 /* Raise TypeError for non-iterable constructor arguments */ 2399 assertRaises(PySet_New(Py_None) == NULL, PyExc_TypeError); 2400 assertRaises(PyFrozenSet_New(Py_None) == NULL, PyExc_TypeError); 2401 2402 /* Raise TypeError for unhashable key */ 2403 dup = PySet_New(ob); 2404 assertRaises(PySet_Discard(ob, dup) == -1, PyExc_TypeError); 2405 assertRaises(PySet_Contains(ob, dup) == -1, PyExc_TypeError); 2406 assertRaises(PySet_Add(ob, dup) == -1, PyExc_TypeError); 2407 2408 /* Exercise successful pop, contains, add, and discard */ 2409 elem = PySet_Pop(ob); 2410 assert(PySet_Contains(ob, elem) == 0); 2411 assert(PySet_GET_SIZE(ob) == 2); 2412 assert(PySet_Add(ob, elem) == 0); 2413 assert(PySet_Contains(ob, elem) == 1); 2414 assert(PySet_GET_SIZE(ob) == 3); 2415 assert(PySet_Discard(ob, elem) == 1); 2416 assert(PySet_GET_SIZE(ob) == 2); 2417 assert(PySet_Discard(ob, elem) == 0); 2418 assert(PySet_GET_SIZE(ob) == 2); 2419 2420 /* Exercise clear */ 2421 dup2 = PySet_New(dup); 2422 assert(PySet_Clear(dup2) == 0); 2423 assert(PySet_Size(dup2) == 0); 2424 Py_DECREF(dup2); 2425 2426 /* Raise SystemError on clear or update of frozen set */ 2427 f = PyFrozenSet_New(dup); 2428 assertRaises(PySet_Clear(f) == -1, PyExc_SystemError); 2429 assertRaises(_PySet_Update(f, dup) == -1, PyExc_SystemError); 2430 assert(PySet_Add(f, elem) == 0); 2431 Py_INCREF(f); 2432 assertRaises(PySet_Add(f, elem) == -1, PyExc_SystemError); 2433 Py_DECREF(f); 2434 Py_DECREF(f); 2435 2436 /* Exercise direct iteration */ 2437 i = 0, count = 0; 2438 while (_PySet_Next((PyObject *)dup, &i, &x)) { 2439 s = PyString_AsString(x); 2440 assert(s && (s[0] == 'a' || s[0] == 'b' || s[0] == 'c')); 2441 count++; 2442 } 2443 assert(count == 3); 2444 2445 /* Exercise updates */ 2446 dup2 = PySet_New(NULL); 2447 assert(_PySet_Update(dup2, dup) == 0); 2448 assert(PySet_Size(dup2) == 3); 2449 assert(_PySet_Update(dup2, dup) == 0); 2450 assert(PySet_Size(dup2) == 3); 2451 Py_DECREF(dup2); 2452 2453 /* Raise SystemError when self argument is not a set or frozenset. */ 2454 t = PyTuple_New(0); 2455 assertRaises(PySet_Size(t) == -1, PyExc_SystemError); 2456 assertRaises(PySet_Contains(t, elem) == -1, PyExc_SystemError); 2457 Py_DECREF(t); 2458 2459 /* Raise SystemError when self argument is not a set. */ 2460 f = PyFrozenSet_New(dup); 2461 assert(PySet_Size(f) == 3); 2462 assert(PyFrozenSet_CheckExact(f)); 2463 assertRaises(PySet_Discard(f, elem) == -1, PyExc_SystemError); 2464 assertRaises(PySet_Pop(f) == NULL, PyExc_SystemError); 2465 Py_DECREF(f); 2466 2467 /* Raise KeyError when popping from an empty set */ 2468 assert(PyNumber_InPlaceSubtract(ob, ob) == ob); 2469 Py_DECREF(ob); 2470 assert(PySet_GET_SIZE(ob) == 0); 2471 assertRaises(PySet_Pop(ob) == NULL, PyExc_KeyError); 2472 2473 /* Restore the set from the copy using the PyNumber API */ 2474 assert(PyNumber_InPlaceOr(ob, dup) == ob); 2475 Py_DECREF(ob); 2476 2477 /* Verify constructors accept NULL arguments */ 2478 f = PySet_New(NULL); 2479 assert(f != NULL); 2480 assert(PySet_GET_SIZE(f) == 0); 2481 Py_DECREF(f); 2482 f = PyFrozenSet_New(NULL); 2483 assert(f != NULL); 2484 assert(PyFrozenSet_CheckExact(f)); 2485 assert(PySet_GET_SIZE(f) == 0); 2486 Py_DECREF(f); 2487 2488 Py_DECREF(elem); 2489 Py_DECREF(dup); 2490 Py_RETURN_TRUE; 2394 Py_ssize_t count; 2395 char *s; 2396 Py_ssize_t i; 2397 PyObject *elem=NULL, *dup=NULL, *t, *f, *dup2, *x; 2398 PyObject *ob = (PyObject *)so; 2399 PyObject *str; 2400 2401 /* Verify preconditions */ 2402 assert(PyAnySet_Check(ob)); 2403 assert(PyAnySet_CheckExact(ob)); 2404 assert(!PyFrozenSet_CheckExact(ob)); 2405 2406 /* so.clear(); so |= set("abc"); */ 2407 str = PyString_FromString("abc"); 2408 if (str == NULL) 2409 return NULL; 2410 set_clear_internal(so); 2411 if (set_update_internal(so, str) == -1) { 2412 Py_DECREF(str); 2413 return NULL; 2414 } 2415 Py_DECREF(str); 2416 2417 /* Exercise type/size checks */ 2418 assert(PySet_Size(ob) == 3); 2419 assert(PySet_GET_SIZE(ob) == 3); 2420 2421 /* Raise TypeError for non-iterable constructor arguments */ 2422 assertRaises(PySet_New(Py_None) == NULL, PyExc_TypeError); 2423 assertRaises(PyFrozenSet_New(Py_None) == NULL, PyExc_TypeError); 2424 2425 /* Raise TypeError for unhashable key */ 2426 dup = PySet_New(ob); 2427 assertRaises(PySet_Discard(ob, dup) == -1, PyExc_TypeError); 2428 assertRaises(PySet_Contains(ob, dup) == -1, PyExc_TypeError); 2429 assertRaises(PySet_Add(ob, dup) == -1, PyExc_TypeError); 2430 2431 /* Exercise successful pop, contains, add, and discard */ 2432 elem = PySet_Pop(ob); 2433 assert(PySet_Contains(ob, elem) == 0); 2434 assert(PySet_GET_SIZE(ob) == 2); 2435 assert(PySet_Add(ob, elem) == 0); 2436 assert(PySet_Contains(ob, elem) == 1); 2437 assert(PySet_GET_SIZE(ob) == 3); 2438 assert(PySet_Discard(ob, elem) == 1); 2439 assert(PySet_GET_SIZE(ob) == 2); 2440 assert(PySet_Discard(ob, elem) == 0); 2441 assert(PySet_GET_SIZE(ob) == 2); 2442 2443 /* Exercise clear */ 2444 dup2 = PySet_New(dup); 2445 assert(PySet_Clear(dup2) == 0); 2446 assert(PySet_Size(dup2) == 0); 2447 Py_DECREF(dup2); 2448 2449 /* Raise SystemError on clear or update of frozen set */ 2450 f = PyFrozenSet_New(dup); 2451 assertRaises(PySet_Clear(f) == -1, PyExc_SystemError); 2452 assertRaises(_PySet_Update(f, dup) == -1, PyExc_SystemError); 2453 assert(PySet_Add(f, elem) == 0); 2454 Py_INCREF(f); 2455 assertRaises(PySet_Add(f, elem) == -1, PyExc_SystemError); 2456 Py_DECREF(f); 2457 Py_DECREF(f); 2458 2459 /* Exercise direct iteration */ 2460 i = 0, count = 0; 2461 while (_PySet_Next((PyObject *)dup, &i, &x)) { 2462 s = PyString_AsString(x); 2463 assert(s && (s[0] == 'a' || s[0] == 'b' || s[0] == 'c')); 2464 count++; 2465 } 2466 assert(count == 3); 2467 2468 /* Exercise updates */ 2469 dup2 = PySet_New(NULL); 2470 assert(_PySet_Update(dup2, dup) == 0); 2471 assert(PySet_Size(dup2) == 3); 2472 assert(_PySet_Update(dup2, dup) == 0); 2473 assert(PySet_Size(dup2) == 3); 2474 Py_DECREF(dup2); 2475 2476 /* Raise SystemError when self argument is not a set or frozenset. */ 2477 t = PyTuple_New(0); 2478 assertRaises(PySet_Size(t) == -1, PyExc_SystemError); 2479 assertRaises(PySet_Contains(t, elem) == -1, PyExc_SystemError); 2480 Py_DECREF(t); 2481 2482 /* Raise SystemError when self argument is not a set. */ 2483 f = PyFrozenSet_New(dup); 2484 assert(PySet_Size(f) == 3); 2485 assert(PyFrozenSet_CheckExact(f)); 2486 assertRaises(PySet_Discard(f, elem) == -1, PyExc_SystemError); 2487 assertRaises(PySet_Pop(f) == NULL, PyExc_SystemError); 2488 Py_DECREF(f); 2489 2490 /* Raise KeyError when popping from an empty set */ 2491 assert(PyNumber_InPlaceSubtract(ob, ob) == ob); 2492 Py_DECREF(ob); 2493 assert(PySet_GET_SIZE(ob) == 0); 2494 assertRaises(PySet_Pop(ob) == NULL, PyExc_KeyError); 2495 2496 /* Restore the set from the copy using the PyNumber API */ 2497 assert(PyNumber_InPlaceOr(ob, dup) == ob); 2498 Py_DECREF(ob); 2499 2500 /* Verify constructors accept NULL arguments */ 2501 f = PySet_New(NULL); 2502 assert(f != NULL); 2503 assert(PySet_GET_SIZE(f) == 0); 2504 Py_DECREF(f); 2505 f = PyFrozenSet_New(NULL); 2506 assert(f != NULL); 2507 assert(PyFrozenSet_CheckExact(f)); 2508 assert(PySet_GET_SIZE(f) == 0); 2509 Py_DECREF(f); 2510 2511 Py_DECREF(elem); 2512 Py_DECREF(dup); 2513 Py_RETURN_TRUE; 2491 2514 } 2492 2515
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