Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2 | /* set object implementation |
Raymond Hettinger | ae7b00e | 2013-09-07 15:05:00 -0700 | [diff] [blame] | 3 | |
Raymond Hettinger | a9d9936 | 2005-08-05 00:01:15 +0000 | [diff] [blame] | 4 | Written and maintained by Raymond D. Hettinger <python@rcn.com> |
| 5 | Derived from Lib/sets.py and Objects/dictobject.c. |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 6 | |
Raymond Hettinger | ae7b00e | 2013-09-07 15:05:00 -0700 | [diff] [blame] | 7 | The basic lookup function used by all operations. |
| 8 | This is based on Algorithm D from Knuth Vol. 3, Sec. 6.4. |
| 9 | |
| 10 | The initial probe index is computed as hash mod the table size. |
| 11 | Subsequent probe indices are computed as explained in Objects/dictobject.c. |
| 12 | |
| 13 | To improve cache locality, each probe inspects a series of consecutive |
| 14 | nearby entries before moving on to probes elsewhere in memory. This leaves |
Raymond Hettinger | 64263df | 2017-09-04 18:54:16 -0700 | [diff] [blame] | 15 | us with a hybrid of linear probing and randomized probing. The linear probing |
Raymond Hettinger | ae7b00e | 2013-09-07 15:05:00 -0700 | [diff] [blame] | 16 | reduces the cost of hash collisions because consecutive memory accesses |
| 17 | tend to be much cheaper than scattered probes. After LINEAR_PROBES steps, |
Raymond Hettinger | 64263df | 2017-09-04 18:54:16 -0700 | [diff] [blame] | 18 | we then use more of the upper bits from the hash value and apply a simple |
| 19 | linear congruential random number genearator. This helps break-up long |
| 20 | chains of collisions. |
Raymond Hettinger | ae7b00e | 2013-09-07 15:05:00 -0700 | [diff] [blame] | 21 | |
| 22 | All arithmetic on hash should ignore overflow. |
| 23 | |
Raymond Hettinger | 4d45c10 | 2015-01-25 16:27:40 -0800 | [diff] [blame] | 24 | Unlike the dictionary implementation, the lookkey function can return |
Raymond Hettinger | ae7b00e | 2013-09-07 15:05:00 -0700 | [diff] [blame] | 25 | NULL if the rich comparison returns an error. |
Serhiy Storchaka | 13ad3b7 | 2017-09-14 09:38:36 +0300 | [diff] [blame] | 26 | |
Raymond Hettinger | 64263df | 2017-09-04 18:54:16 -0700 | [diff] [blame] | 27 | Use cases for sets differ considerably from dictionaries where looked-up |
| 28 | keys are more likely to be present. In contrast, sets are primarily |
| 29 | about membership testing where the presence of an element is not known in |
| 30 | advance. Accordingly, the set implementation needs to optimize for both |
| 31 | the found and not-found case. |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 32 | */ |
| 33 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 34 | #include "Python.h" |
Victor Stinner | 4a21e57 | 2020-04-15 02:35:41 +0200 | [diff] [blame] | 35 | #include "pycore_object.h" // _PyObject_GC_UNTRACK() |
| 36 | #include <stddef.h> // offsetof() |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 37 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 38 | /* Object used as dummy key to fill deleted entries */ |
Raymond Hettinger | bfc1e1a | 2013-08-23 03:22:15 -0500 | [diff] [blame] | 39 | static PyObject _dummy_struct; |
| 40 | |
| 41 | #define dummy (&_dummy_struct) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 42 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 43 | |
Raymond Hettinger | 04fd9dd | 2013-09-07 17:41:01 -0700 | [diff] [blame] | 44 | /* ======================================================================== */ |
| 45 | /* ======= Begin logic for probing the hash table ========================= */ |
| 46 | |
Raymond Hettinger | 710a67e | 2013-09-21 20:17:31 -0700 | [diff] [blame] | 47 | /* Set this to zero to turn-off linear probing */ |
Raymond Hettinger | 8408dc5 | 2013-09-15 14:57:15 -0700 | [diff] [blame] | 48 | #ifndef LINEAR_PROBES |
Raymond Hettinger | 742d871 | 2013-09-08 00:25:57 -0700 | [diff] [blame] | 49 | #define LINEAR_PROBES 9 |
Raymond Hettinger | 8408dc5 | 2013-09-15 14:57:15 -0700 | [diff] [blame] | 50 | #endif |
Raymond Hettinger | 742d871 | 2013-09-08 00:25:57 -0700 | [diff] [blame] | 51 | |
| 52 | /* This must be >= 1 */ |
| 53 | #define PERTURB_SHIFT 5 |
| 54 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 55 | static setentry * |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 56 | set_lookkey(PySetObject *so, PyObject *key, Py_hash_t hash) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 57 | { |
Raymond Hettinger | 70559b5 | 2015-07-23 07:42:23 -0400 | [diff] [blame] | 58 | setentry *table; |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 59 | setentry *entry; |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 60 | size_t perturb = hash; |
Raymond Hettinger | afe8909 | 2013-08-28 20:59:31 -0700 | [diff] [blame] | 61 | size_t mask = so->mask; |
Raymond Hettinger | 59ecabd | 2015-01-31 02:45:12 -0800 | [diff] [blame] | 62 | size_t i = (size_t)hash & mask; /* Unsigned for defined overflow behavior */ |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 63 | int probes; |
Raymond Hettinger | 4ef0528 | 2013-09-21 15:39:49 -0700 | [diff] [blame] | 64 | int cmp; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 65 | |
Raymond Hettinger | 3c0a4f5 | 2013-08-19 07:36:04 -0700 | [diff] [blame] | 66 | while (1) { |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 67 | entry = &so->table[i]; |
| 68 | probes = (i + LINEAR_PROBES <= mask) ? LINEAR_PROBES: 0; |
| 69 | do { |
| 70 | if (entry->hash == 0 && entry->key == NULL) |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 71 | return entry; |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 72 | if (entry->hash == hash) { |
| 73 | PyObject *startkey = entry->key; |
| 74 | assert(startkey != dummy); |
| 75 | if (startkey == key) |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 76 | return entry; |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 77 | if (PyUnicode_CheckExact(startkey) |
| 78 | && PyUnicode_CheckExact(key) |
| 79 | && _PyUnicode_EQ(startkey, key)) |
| 80 | return entry; |
| 81 | table = so->table; |
| 82 | Py_INCREF(startkey); |
| 83 | cmp = PyObject_RichCompareBool(startkey, key, Py_EQ); |
| 84 | Py_DECREF(startkey); |
| 85 | if (cmp < 0) |
| 86 | return NULL; |
| 87 | if (table != so->table || entry->key != startkey) |
| 88 | return set_lookkey(so, key, hash); |
| 89 | if (cmp > 0) |
| 90 | return entry; |
| 91 | mask = so->mask; |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 92 | } |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 93 | entry++; |
| 94 | } while (probes--); |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 95 | perturb >>= PERTURB_SHIFT; |
| 96 | i = (i * 5 + 1 + perturb) & mask; |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 97 | } |
| 98 | } |
| 99 | |
Raymond Hettinger | 15f0869 | 2015-07-03 17:21:17 -0700 | [diff] [blame] | 100 | static int set_table_resize(PySetObject *, Py_ssize_t); |
| 101 | |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 102 | static int |
Raymond Hettinger | ff9e18a | 2015-07-20 07:34:05 -0400 | [diff] [blame] | 103 | set_add_entry(PySetObject *so, PyObject *key, Py_hash_t hash) |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 104 | { |
Raymond Hettinger | ff9e18a | 2015-07-20 07:34:05 -0400 | [diff] [blame] | 105 | setentry *table; |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 106 | setentry *entry; |
Raymond Hettinger | 38bb95e | 2015-06-24 01:22:19 -0700 | [diff] [blame] | 107 | size_t perturb; |
Raymond Hettinger | ff9e18a | 2015-07-20 07:34:05 -0400 | [diff] [blame] | 108 | size_t mask; |
| 109 | size_t i; /* Unsigned for defined overflow behavior */ |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 110 | int probes; |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 111 | int cmp; |
| 112 | |
Raymond Hettinger | ff9e18a | 2015-07-20 07:34:05 -0400 | [diff] [blame] | 113 | /* Pre-increment is necessary to prevent arbitrary code in the rich |
| 114 | comparison from deallocating the key just before the insertion. */ |
| 115 | Py_INCREF(key); |
| 116 | |
| 117 | restart: |
| 118 | |
Raymond Hettinger | ff9e18a | 2015-07-20 07:34:05 -0400 | [diff] [blame] | 119 | mask = so->mask; |
| 120 | i = (size_t)hash & mask; |
Raymond Hettinger | 6ee588f | 2015-06-20 21:39:51 -0700 | [diff] [blame] | 121 | perturb = hash; |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 122 | |
| 123 | while (1) { |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 124 | entry = &so->table[i]; |
| 125 | probes = (i + LINEAR_PROBES <= mask) ? LINEAR_PROBES: 0; |
| 126 | do { |
| 127 | if (entry->hash == 0 && entry->key == NULL) |
| 128 | goto found_unused; |
| 129 | if (entry->hash == hash) { |
| 130 | PyObject *startkey = entry->key; |
| 131 | assert(startkey != dummy); |
| 132 | if (startkey == key) |
| 133 | goto found_active; |
| 134 | if (PyUnicode_CheckExact(startkey) |
| 135 | && PyUnicode_CheckExact(key) |
| 136 | && _PyUnicode_EQ(startkey, key)) |
| 137 | goto found_active; |
| 138 | table = so->table; |
| 139 | Py_INCREF(startkey); |
| 140 | cmp = PyObject_RichCompareBool(startkey, key, Py_EQ); |
| 141 | Py_DECREF(startkey); |
| 142 | if (cmp > 0) |
| 143 | goto found_active; |
| 144 | if (cmp < 0) |
| 145 | goto comparison_error; |
| 146 | if (table != so->table || entry->key != startkey) |
| 147 | goto restart; |
| 148 | mask = so->mask; |
Raymond Hettinger | a35adf5 | 2013-09-02 03:23:21 -0700 | [diff] [blame] | 149 | } |
Raymond Hettinger | 2cc9b84 | 2020-05-10 14:53:29 -0700 | [diff] [blame] | 150 | entry++; |
| 151 | } while (probes--); |
Raymond Hettinger | 3c0a4f5 | 2013-08-19 07:36:04 -0700 | [diff] [blame] | 152 | perturb >>= PERTURB_SHIFT; |
Raymond Hettinger | 59ecabd | 2015-01-31 02:45:12 -0800 | [diff] [blame] | 153 | i = (i * 5 + 1 + perturb) & mask; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 154 | } |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 155 | |
Raymond Hettinger | 15f0869 | 2015-07-03 17:21:17 -0700 | [diff] [blame] | 156 | found_unused: |
Raymond Hettinger | 6ee588f | 2015-06-20 21:39:51 -0700 | [diff] [blame] | 157 | so->fill++; |
| 158 | so->used++; |
| 159 | entry->key = key; |
| 160 | entry->hash = hash; |
Raymond Hettinger | 5cd87a8 | 2017-02-04 02:43:42 -0800 | [diff] [blame] | 161 | if ((size_t)so->fill*5 < mask*3) |
Raymond Hettinger | 15f0869 | 2015-07-03 17:21:17 -0700 | [diff] [blame] | 162 | return 0; |
INADA Naoki | e82cf86 | 2017-04-01 17:20:25 +0900 | [diff] [blame] | 163 | return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4); |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 164 | |
| 165 | found_active: |
Raymond Hettinger | 482c05c | 2015-07-20 01:23:32 -0400 | [diff] [blame] | 166 | Py_DECREF(key); |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 167 | return 0; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 168 | |
Raymond Hettinger | ff9e18a | 2015-07-20 07:34:05 -0400 | [diff] [blame] | 169 | comparison_error: |
Raymond Hettinger | 061091a | 2015-07-15 23:54:02 -0700 | [diff] [blame] | 170 | Py_DECREF(key); |
| 171 | return -1; |
| 172 | } |
| 173 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 174 | /* |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 175 | Internal routine used by set_table_resize() to insert an item which is |
Raymond Hettinger | d699d5e | 2020-05-03 11:25:46 -0700 | [diff] [blame] | 176 | known to be absent from the set. Besides the performance benefit, |
Raymond Hettinger | 6019c8c | 2015-11-17 08:28:07 -0800 | [diff] [blame] | 177 | there is also safety benefit since using set_add_entry() risks making |
| 178 | a callback in the middle of a set_table_resize(), see issue 1456209. |
| 179 | The caller is responsible for updating the key's reference count and |
| 180 | the setobject's fill and used fields. |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 181 | */ |
| 182 | static void |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 183 | set_insert_clean(setentry *table, size_t mask, PyObject *key, Py_hash_t hash) |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 184 | { |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 185 | setentry *entry; |
Raymond Hettinger | 3c0a4f5 | 2013-08-19 07:36:04 -0700 | [diff] [blame] | 186 | size_t perturb = hash; |
Raymond Hettinger | 3037e84 | 2015-01-26 21:33:48 -0800 | [diff] [blame] | 187 | size_t i = (size_t)hash & mask; |
Raymond Hettinger | a35adf5 | 2013-09-02 03:23:21 -0700 | [diff] [blame] | 188 | size_t j; |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 189 | |
Raymond Hettinger | 3c0a4f5 | 2013-08-19 07:36:04 -0700 | [diff] [blame] | 190 | while (1) { |
Raymond Hettinger | 3037e84 | 2015-01-26 21:33:48 -0800 | [diff] [blame] | 191 | entry = &table[i]; |
| 192 | if (entry->key == NULL) |
| 193 | goto found_null; |
| 194 | if (i + LINEAR_PROBES <= mask) { |
Raymond Hettinger | 8249282 | 2015-02-04 08:37:02 -0800 | [diff] [blame] | 195 | for (j = 0; j < LINEAR_PROBES; j++) { |
Raymond Hettinger | 9edd753 | 2015-01-30 20:09:23 -0800 | [diff] [blame] | 196 | entry++; |
Raymond Hettinger | 3037e84 | 2015-01-26 21:33:48 -0800 | [diff] [blame] | 197 | if (entry->key == NULL) |
| 198 | goto found_null; |
| 199 | } |
Raymond Hettinger | a35adf5 | 2013-09-02 03:23:21 -0700 | [diff] [blame] | 200 | } |
Raymond Hettinger | 3c0a4f5 | 2013-08-19 07:36:04 -0700 | [diff] [blame] | 201 | perturb >>= PERTURB_SHIFT; |
Raymond Hettinger | 3037e84 | 2015-01-26 21:33:48 -0800 | [diff] [blame] | 202 | i = (i * 5 + 1 + perturb) & mask; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 203 | } |
Raymond Hettinger | a35adf5 | 2013-09-02 03:23:21 -0700 | [diff] [blame] | 204 | found_null: |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 205 | entry->key = key; |
Raymond Hettinger | 86d322f | 2015-12-13 19:27:17 -0800 | [diff] [blame] | 206 | entry->hash = hash; |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 207 | } |
| 208 | |
Raymond Hettinger | 04fd9dd | 2013-09-07 17:41:01 -0700 | [diff] [blame] | 209 | /* ======== End logic for probing the hash table ========================== */ |
| 210 | /* ======================================================================== */ |
| 211 | |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 212 | /* |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 213 | Restructure the table by allocating a new table and reinserting all |
Raymond Hettinger | 06d8cf8 | 2005-07-31 15:36:06 +0000 | [diff] [blame] | 214 | keys again. When entries have been deleted, the new table may |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 215 | actually be smaller than the old one. |
| 216 | */ |
| 217 | static int |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 218 | set_table_resize(PySetObject *so, Py_ssize_t minused) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 219 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 220 | setentry *oldtable, *newtable, *entry; |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 221 | Py_ssize_t oldmask = so->mask; |
| 222 | size_t newmask; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 223 | int is_oldtable_malloced; |
| 224 | setentry small_copy[PySet_MINSIZE]; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 225 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 226 | assert(minused >= 0); |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 227 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 228 | /* Find the smallest table size > minused. */ |
Raymond Hettinger | 426d995 | 2014-05-18 21:40:20 +0100 | [diff] [blame] | 229 | /* XXX speed-up with intrinsics */ |
Sergey Fedoseev | 6c7d67c | 2018-09-12 04:18:01 +0500 | [diff] [blame] | 230 | size_t newsize = PySet_MINSIZE; |
| 231 | while (newsize <= (size_t)minused) { |
| 232 | newsize <<= 1; // The largest possible value is PY_SSIZE_T_MAX + 1. |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 233 | } |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 234 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 235 | /* Get space for a new table. */ |
| 236 | oldtable = so->table; |
| 237 | assert(oldtable != NULL); |
| 238 | is_oldtable_malloced = oldtable != so->smalltable; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 239 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 240 | if (newsize == PySet_MINSIZE) { |
| 241 | /* A large table is shrinking, or we can't get any smaller. */ |
| 242 | newtable = so->smalltable; |
| 243 | if (newtable == oldtable) { |
| 244 | if (so->fill == so->used) { |
| 245 | /* No dummies, so no point doing anything. */ |
| 246 | return 0; |
| 247 | } |
| 248 | /* We're not going to resize it, but rebuild the |
| 249 | table anyway to purge old dummy entries. |
| 250 | Subtle: This is *necessary* if fill==size, |
| 251 | as set_lookkey needs at least one virgin slot to |
| 252 | terminate failing searches. If fill < size, it's |
| 253 | merely desirable, as dummies slow searches. */ |
| 254 | assert(so->fill > so->used); |
| 255 | memcpy(small_copy, oldtable, sizeof(small_copy)); |
| 256 | oldtable = small_copy; |
| 257 | } |
| 258 | } |
| 259 | else { |
| 260 | newtable = PyMem_NEW(setentry, newsize); |
| 261 | if (newtable == NULL) { |
| 262 | PyErr_NoMemory(); |
| 263 | return -1; |
| 264 | } |
| 265 | } |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 266 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 267 | /* Make the set empty, using the new table. */ |
| 268 | assert(newtable != oldtable); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 269 | memset(newtable, 0, sizeof(setentry) * newsize); |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 270 | so->mask = newsize - 1; |
| 271 | so->table = newtable; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 272 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 273 | /* Copy the data over; this is refcount-neutral for active entries; |
| 274 | dummy entries aren't copied over, of course */ |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 275 | newmask = (size_t)so->mask; |
Raymond Hettinger | e1af696 | 2017-02-02 08:24:48 -0800 | [diff] [blame] | 276 | if (so->fill == so->used) { |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 277 | for (entry = oldtable; entry <= oldtable + oldmask; entry++) { |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 278 | if (entry->key != NULL) { |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 279 | set_insert_clean(newtable, newmask, entry->key, entry->hash); |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 280 | } |
| 281 | } |
| 282 | } else { |
Raymond Hettinger | e1af696 | 2017-02-02 08:24:48 -0800 | [diff] [blame] | 283 | so->fill = so->used; |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 284 | for (entry = oldtable; entry <= oldtable + oldmask; entry++) { |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 285 | if (entry->key != NULL && entry->key != dummy) { |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 286 | set_insert_clean(newtable, newmask, entry->key, entry->hash); |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 287 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 288 | } |
| 289 | } |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 290 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 291 | if (is_oldtable_malloced) |
Victor Stinner | 00d7abd | 2020-12-01 09:56:42 +0100 | [diff] [blame] | 292 | PyMem_Free(oldtable); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 293 | return 0; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 294 | } |
| 295 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 296 | static int |
Raymond Hettinger | b48d6a6 | 2015-07-05 16:27:44 -0700 | [diff] [blame] | 297 | set_contains_entry(PySetObject *so, PyObject *key, Py_hash_t hash) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 298 | { |
Raymond Hettinger | b48d6a6 | 2015-07-05 16:27:44 -0700 | [diff] [blame] | 299 | setentry *entry; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 300 | |
Raymond Hettinger | b48d6a6 | 2015-07-05 16:27:44 -0700 | [diff] [blame] | 301 | entry = set_lookkey(so, key, hash); |
| 302 | if (entry != NULL) |
| 303 | return entry->key != NULL; |
| 304 | return -1; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 305 | } |
| 306 | |
| 307 | #define DISCARD_NOTFOUND 0 |
| 308 | #define DISCARD_FOUND 1 |
| 309 | |
| 310 | static int |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 311 | set_discard_entry(PySetObject *so, PyObject *key, Py_hash_t hash) |
Raymond Hettinger | 8edf27c | 2014-12-26 23:08:58 -0800 | [diff] [blame] | 312 | { |
| 313 | setentry *entry; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 314 | PyObject *old_key; |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 315 | |
Raymond Hettinger | dc28d5a | 2015-07-05 10:03:20 -0700 | [diff] [blame] | 316 | entry = set_lookkey(so, key, hash); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 317 | if (entry == NULL) |
| 318 | return -1; |
Raymond Hettinger | 8651a50 | 2015-05-27 10:37:20 -0700 | [diff] [blame] | 319 | if (entry->key == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 320 | return DISCARD_NOTFOUND; |
| 321 | old_key = entry->key; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 322 | entry->key = dummy; |
Raymond Hettinger | b335dfe | 2015-01-25 16:38:52 -0800 | [diff] [blame] | 323 | entry->hash = -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 324 | so->used--; |
| 325 | Py_DECREF(old_key); |
| 326 | return DISCARD_FOUND; |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 327 | } |
| 328 | |
| 329 | static int |
Raymond Hettinger | b48d6a6 | 2015-07-05 16:27:44 -0700 | [diff] [blame] | 330 | set_add_key(PySetObject *so, PyObject *key) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 331 | { |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 332 | Py_hash_t hash; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 333 | |
Raymond Hettinger | b48d6a6 | 2015-07-05 16:27:44 -0700 | [diff] [blame] | 334 | if (!PyUnicode_CheckExact(key) || |
| 335 | (hash = ((PyASCIIObject *) key)->hash) == -1) { |
| 336 | hash = PyObject_Hash(key); |
| 337 | if (hash == -1) |
| 338 | return -1; |
| 339 | } |
| 340 | return set_add_entry(so, key, hash); |
| 341 | } |
| 342 | |
| 343 | static int |
| 344 | set_contains_key(PySetObject *so, PyObject *key) |
| 345 | { |
| 346 | Py_hash_t hash; |
| 347 | |
| 348 | if (!PyUnicode_CheckExact(key) || |
| 349 | (hash = ((PyASCIIObject *) key)->hash) == -1) { |
| 350 | hash = PyObject_Hash(key); |
| 351 | if (hash == -1) |
| 352 | return -1; |
| 353 | } |
| 354 | return set_contains_entry(so, key, hash); |
| 355 | } |
| 356 | |
| 357 | static int |
| 358 | set_discard_key(PySetObject *so, PyObject *key) |
| 359 | { |
| 360 | Py_hash_t hash; |
Christian Heimes | 0ded5b5 | 2007-12-10 15:50:56 +0000 | [diff] [blame] | 361 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 362 | if (!PyUnicode_CheckExact(key) || |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 363 | (hash = ((PyASCIIObject *) key)->hash) == -1) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 364 | hash = PyObject_Hash(key); |
| 365 | if (hash == -1) |
| 366 | return -1; |
| 367 | } |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 368 | return set_discard_entry(so, key, hash); |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 369 | } |
| 370 | |
Raymond Hettinger | 4ea9080 | 2013-09-07 21:01:29 -0700 | [diff] [blame] | 371 | static void |
| 372 | set_empty_to_minsize(PySetObject *so) |
| 373 | { |
| 374 | memset(so->smalltable, 0, sizeof(so->smalltable)); |
| 375 | so->fill = 0; |
| 376 | so->used = 0; |
| 377 | so->mask = PySet_MINSIZE - 1; |
| 378 | so->table = so->smalltable; |
| 379 | so->hash = -1; |
| 380 | } |
| 381 | |
Raymond Hettinger | fe889f3 | 2005-08-06 05:43:39 +0000 | [diff] [blame] | 382 | static int |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 383 | set_clear_internal(PySetObject *so) |
| 384 | { |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 385 | setentry *entry; |
| 386 | setentry *table = so->table; |
| 387 | Py_ssize_t fill = so->fill; |
| 388 | Py_ssize_t used = so->used; |
| 389 | int table_is_malloced = table != so->smalltable; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 390 | setentry small_copy[PySet_MINSIZE]; |
Raymond Hettinger | a580c47 | 2005-08-05 17:19:54 +0000 | [diff] [blame] | 391 | |
Raymond Hettinger | 583cd03 | 2013-09-07 22:06:35 -0700 | [diff] [blame] | 392 | assert (PyAnySet_Check(so)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 393 | assert(table != NULL); |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 394 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 395 | /* This is delicate. During the process of clearing the set, |
| 396 | * decrefs can cause the set to mutate. To avoid fatal confusion |
| 397 | * (voice of experience), we have to make the set empty before |
| 398 | * clearing the slots, and never refer to anything via so->ref while |
| 399 | * clearing. |
| 400 | */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 401 | if (table_is_malloced) |
Raymond Hettinger | 4ea9080 | 2013-09-07 21:01:29 -0700 | [diff] [blame] | 402 | set_empty_to_minsize(so); |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 403 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 404 | else if (fill > 0) { |
| 405 | /* It's a small table with something that needs to be cleared. |
| 406 | * Afraid the only safe way is to copy the set entries into |
| 407 | * another small table first. |
| 408 | */ |
| 409 | memcpy(small_copy, table, sizeof(small_copy)); |
| 410 | table = small_copy; |
Raymond Hettinger | 4ea9080 | 2013-09-07 21:01:29 -0700 | [diff] [blame] | 411 | set_empty_to_minsize(so); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 412 | } |
| 413 | /* else it's a small table that's already empty */ |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 414 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 415 | /* Now we can finally clear things. If C had refcounts, we could |
| 416 | * assert that the refcount on table is 1 now, i.e. that this function |
| 417 | * has unique access to it, so decref side-effects can't alter it. |
| 418 | */ |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 419 | for (entry = table; used > 0; entry++) { |
| 420 | if (entry->key && entry->key != dummy) { |
| 421 | used--; |
| 422 | Py_DECREF(entry->key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 423 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 424 | } |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 425 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 426 | if (table_is_malloced) |
Victor Stinner | 00d7abd | 2020-12-01 09:56:42 +0100 | [diff] [blame] | 427 | PyMem_Free(table); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 428 | return 0; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 429 | } |
| 430 | |
| 431 | /* |
| 432 | * Iterate over a set table. Use like so: |
| 433 | * |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 434 | * Py_ssize_t pos; |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 435 | * setentry *entry; |
Raymond Hettinger | d794666 | 2005-08-01 21:39:29 +0000 | [diff] [blame] | 436 | * pos = 0; # important! pos should not otherwise be changed by you |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 437 | * while (set_next(yourset, &pos, &entry)) { |
| 438 | * Refer to borrowed reference in entry->key. |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 439 | * } |
| 440 | * |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 441 | * CAUTION: In general, it isn't safe to use set_next in a loop that |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 442 | * mutates the table. |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 443 | */ |
| 444 | static int |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 445 | set_next(PySetObject *so, Py_ssize_t *pos_ptr, setentry **entry_ptr) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 446 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 447 | Py_ssize_t i; |
| 448 | Py_ssize_t mask; |
Raymond Hettinger | ef6bd7d | 2015-07-06 08:43:37 -0700 | [diff] [blame] | 449 | setentry *entry; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 450 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 451 | assert (PyAnySet_Check(so)); |
| 452 | i = *pos_ptr; |
| 453 | assert(i >= 0); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 454 | mask = so->mask; |
Raymond Hettinger | ef6bd7d | 2015-07-06 08:43:37 -0700 | [diff] [blame] | 455 | entry = &so->table[i]; |
| 456 | while (i <= mask && (entry->key == NULL || entry->key == dummy)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 457 | i++; |
Raymond Hettinger | ef6bd7d | 2015-07-06 08:43:37 -0700 | [diff] [blame] | 458 | entry++; |
| 459 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 460 | *pos_ptr = i+1; |
| 461 | if (i > mask) |
| 462 | return 0; |
Raymond Hettinger | ef6bd7d | 2015-07-06 08:43:37 -0700 | [diff] [blame] | 463 | assert(entry != NULL); |
| 464 | *entry_ptr = entry; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 465 | return 1; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 466 | } |
| 467 | |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 468 | static void |
| 469 | set_dealloc(PySetObject *so) |
| 470 | { |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 471 | setentry *entry; |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 472 | Py_ssize_t used = so->used; |
| 473 | |
INADA Naoki | a6296d3 | 2017-08-24 14:55:17 +0900 | [diff] [blame] | 474 | /* bpo-31095: UnTrack is needed before calling any callbacks */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 475 | PyObject_GC_UnTrack(so); |
Jeroen Demeyer | 351c674 | 2019-05-10 19:21:11 +0200 | [diff] [blame] | 476 | Py_TRASHCAN_BEGIN(so, set_dealloc) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 477 | if (so->weakreflist != NULL) |
| 478 | PyObject_ClearWeakRefs((PyObject *) so); |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 479 | |
Raymond Hettinger | 08e3dc0 | 2014-12-26 20:14:00 -0800 | [diff] [blame] | 480 | for (entry = so->table; used > 0; entry++) { |
| 481 | if (entry->key && entry->key != dummy) { |
| 482 | used--; |
Raymond Hettinger | fcf3b50 | 2013-08-22 08:20:31 -0700 | [diff] [blame] | 483 | Py_DECREF(entry->key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 484 | } |
| 485 | } |
| 486 | if (so->table != so->smalltable) |
Victor Stinner | 00d7abd | 2020-12-01 09:56:42 +0100 | [diff] [blame] | 487 | PyMem_Free(so->table); |
Raymond Hettinger | 8f8839e | 2013-09-07 20:26:50 -0700 | [diff] [blame] | 488 | Py_TYPE(so)->tp_free(so); |
Jeroen Demeyer | 351c674 | 2019-05-10 19:21:11 +0200 | [diff] [blame] | 489 | Py_TRASHCAN_END |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 490 | } |
| 491 | |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 492 | static PyObject * |
| 493 | set_repr(PySetObject *so) |
| 494 | { |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 495 | PyObject *result=NULL, *keys, *listrepr, *tmp; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 496 | int status = Py_ReprEnter((PyObject*)so); |
Thomas Wouters | 902d6eb | 2007-01-09 23:18:33 +0000 | [diff] [blame] | 497 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 498 | if (status != 0) { |
| 499 | if (status < 0) |
| 500 | return NULL; |
| 501 | return PyUnicode_FromFormat("%s(...)", Py_TYPE(so)->tp_name); |
| 502 | } |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 503 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 504 | /* shortcut for the empty set */ |
| 505 | if (!so->used) { |
| 506 | Py_ReprLeave((PyObject*)so); |
| 507 | return PyUnicode_FromFormat("%s()", Py_TYPE(so)->tp_name); |
| 508 | } |
Georg Brandl | c4996ba | 2006-08-28 19:37:11 +0000 | [diff] [blame] | 509 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 510 | keys = PySequence_List((PyObject *)so); |
| 511 | if (keys == NULL) |
| 512 | goto done; |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 513 | |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 514 | /* repr(keys)[1:-1] */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 515 | listrepr = PyObject_Repr(keys); |
| 516 | Py_DECREF(keys); |
| 517 | if (listrepr == NULL) |
| 518 | goto done; |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 519 | tmp = PyUnicode_Substring(listrepr, 1, PyUnicode_GET_LENGTH(listrepr)-1); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 520 | Py_DECREF(listrepr); |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 521 | if (tmp == NULL) |
| 522 | goto done; |
| 523 | listrepr = tmp; |
Victor Stinner | a1a807b | 2011-05-26 14:24:30 +0200 | [diff] [blame] | 524 | |
Andy Lester | 5572870 | 2020-03-06 16:53:17 -0600 | [diff] [blame] | 525 | if (!Py_IS_TYPE(so, &PySet_Type)) |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 526 | result = PyUnicode_FromFormat("%s({%U})", |
| 527 | Py_TYPE(so)->tp_name, |
| 528 | listrepr); |
| 529 | else |
| 530 | result = PyUnicode_FromFormat("{%U}", listrepr); |
| 531 | Py_DECREF(listrepr); |
Thomas Wouters | 902d6eb | 2007-01-09 23:18:33 +0000 | [diff] [blame] | 532 | done: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 533 | Py_ReprLeave((PyObject*)so); |
| 534 | return result; |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 535 | } |
| 536 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 537 | static Py_ssize_t |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 538 | set_len(PyObject *so) |
| 539 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 540 | return ((PySetObject *)so)->used; |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 541 | } |
| 542 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 543 | static int |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 544 | set_merge(PySetObject *so, PyObject *otherset) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 545 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 546 | PySetObject *other; |
Raymond Hettinger | faf7b7f | 2010-09-03 10:00:50 +0000 | [diff] [blame] | 547 | PyObject *key; |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 548 | Py_ssize_t i; |
Raymond Hettinger | 1bd8d75 | 2015-05-13 01:26:14 -0700 | [diff] [blame] | 549 | setentry *so_entry; |
| 550 | setentry *other_entry; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 551 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 552 | assert (PyAnySet_Check(so)); |
| 553 | assert (PyAnySet_Check(otherset)); |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 554 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 555 | other = (PySetObject*)otherset; |
| 556 | if (other == so || other->used == 0) |
Raymond Hettinger | 1bd8d75 | 2015-05-13 01:26:14 -0700 | [diff] [blame] | 557 | /* a.update(a) or a.update(set()); nothing to do */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 558 | return 0; |
| 559 | /* Do one big resize at the start, rather than |
| 560 | * incrementally resizing as we insert new keys. Expect |
| 561 | * that there will be no (or few) overlapping keys. |
| 562 | */ |
Raymond Hettinger | 5cd87a8 | 2017-02-04 02:43:42 -0800 | [diff] [blame] | 563 | if ((so->fill + other->used)*5 >= so->mask*3) { |
INADA Naoki | e82cf86 | 2017-04-01 17:20:25 +0900 | [diff] [blame] | 564 | if (set_table_resize(so, (so->used + other->used)*2) != 0) |
| 565 | return -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 566 | } |
Raymond Hettinger | 1bd8d75 | 2015-05-13 01:26:14 -0700 | [diff] [blame] | 567 | so_entry = so->table; |
| 568 | other_entry = other->table; |
| 569 | |
| 570 | /* If our table is empty, and both tables have the same size, and |
| 571 | there are no dummies to eliminate, then just copy the pointers. */ |
| 572 | if (so->fill == 0 && so->mask == other->mask && other->fill == other->used) { |
| 573 | for (i = 0; i <= other->mask; i++, so_entry++, other_entry++) { |
| 574 | key = other_entry->key; |
| 575 | if (key != NULL) { |
| 576 | assert(so_entry->key == NULL); |
| 577 | Py_INCREF(key); |
| 578 | so_entry->key = key; |
| 579 | so_entry->hash = other_entry->hash; |
| 580 | } |
| 581 | } |
| 582 | so->fill = other->fill; |
| 583 | so->used = other->used; |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | /* If our table is empty, we can use set_insert_clean() */ |
| 588 | if (so->fill == 0) { |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 589 | setentry *newtable = so->table; |
| 590 | size_t newmask = (size_t)so->mask; |
Raymond Hettinger | 6019c8c | 2015-11-17 08:28:07 -0800 | [diff] [blame] | 591 | so->fill = other->used; |
| 592 | so->used = other->used; |
Raymond Hettinger | e449587 | 2015-12-15 00:42:30 -0800 | [diff] [blame] | 593 | for (i = other->mask + 1; i > 0 ; i--, other_entry++) { |
Raymond Hettinger | 1bd8d75 | 2015-05-13 01:26:14 -0700 | [diff] [blame] | 594 | key = other_entry->key; |
| 595 | if (key != NULL && key != dummy) { |
| 596 | Py_INCREF(key); |
Raymond Hettinger | 5088f60 | 2015-12-13 18:45:01 -0800 | [diff] [blame] | 597 | set_insert_clean(newtable, newmask, key, other_entry->hash); |
Raymond Hettinger | 1bd8d75 | 2015-05-13 01:26:14 -0700 | [diff] [blame] | 598 | } |
| 599 | } |
| 600 | return 0; |
| 601 | } |
| 602 | |
| 603 | /* We can't assure there are no duplicates, so do normal insertions */ |
Raymond Hettinger | a3626bc | 2015-07-15 23:50:14 -0700 | [diff] [blame] | 604 | for (i = 0; i <= other->mask; i++) { |
| 605 | other_entry = &other->table[i]; |
Raymond Hettinger | 1bd8d75 | 2015-05-13 01:26:14 -0700 | [diff] [blame] | 606 | key = other_entry->key; |
| 607 | if (key != NULL && key != dummy) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 608 | if (set_add_entry(so, key, other_entry->hash)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 609 | return -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 610 | } |
| 611 | } |
| 612 | return 0; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 613 | } |
| 614 | |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 615 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 616 | set_pop(PySetObject *so, PyObject *Py_UNUSED(ignored)) |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 617 | { |
Raymond Hettinger | 9cd6a78 | 2015-01-18 16:06:18 -0800 | [diff] [blame] | 618 | /* Make sure the search finger is in bounds */ |
Raymond Hettinger | f9ec1b9 | 2018-11-11 14:35:47 -0800 | [diff] [blame] | 619 | setentry *entry = so->table + (so->finger & so->mask); |
| 620 | setentry *limit = so->table + so->mask; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 621 | PyObject *key; |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 622 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 623 | if (so->used == 0) { |
| 624 | PyErr_SetString(PyExc_KeyError, "pop from an empty set"); |
| 625 | return NULL; |
| 626 | } |
Raymond Hettinger | cf5863f | 2018-11-09 02:31:56 -0800 | [diff] [blame] | 627 | while (entry->key == NULL || entry->key==dummy) { |
| 628 | entry++; |
| 629 | if (entry > limit) |
| 630 | entry = so->table; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 631 | } |
| 632 | key = entry->key; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 633 | entry->key = dummy; |
Raymond Hettinger | b335dfe | 2015-01-25 16:38:52 -0800 | [diff] [blame] | 634 | entry->hash = -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 635 | so->used--; |
Raymond Hettinger | cf5863f | 2018-11-09 02:31:56 -0800 | [diff] [blame] | 636 | so->finger = entry - so->table + 1; /* next place to start */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 637 | return key; |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 638 | } |
| 639 | |
Benjamin Peterson | f10a79a | 2008-10-11 00:49:57 +0000 | [diff] [blame] | 640 | PyDoc_STRVAR(pop_doc, "Remove and return an arbitrary set element.\n\ |
| 641 | Raises KeyError if the set is empty."); |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 642 | |
| 643 | static int |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 644 | set_traverse(PySetObject *so, visitproc visit, void *arg) |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 645 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 646 | Py_ssize_t pos = 0; |
| 647 | setentry *entry; |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 648 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 649 | while (set_next(so, &pos, &entry)) |
| 650 | Py_VISIT(entry->key); |
| 651 | return 0; |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 652 | } |
| 653 | |
Raymond Hettinger | fbffdef | 2015-08-01 09:53:00 -0700 | [diff] [blame] | 654 | /* Work to increase the bit dispersion for closely spaced hash values. |
| 655 | This is important because some use cases have many combinations of a |
| 656 | small number of elements with nearby hashes so that many distinct |
| 657 | combinations collapse to only a handful of distinct hash values. */ |
| 658 | |
| 659 | static Py_uhash_t |
| 660 | _shuffle_bits(Py_uhash_t h) |
| 661 | { |
| 662 | return ((h ^ 89869747UL) ^ (h << 16)) * 3644798167UL; |
| 663 | } |
| 664 | |
| 665 | /* Most of the constants in this hash algorithm are randomly chosen |
| 666 | large primes with "interesting bit patterns" and that passed tests |
| 667 | for good collision statistics on a variety of problematic datasets |
| 668 | including powersets and graph structures (such as David Eppstein's |
| 669 | graph recipes in Lib/test/test_set.py) */ |
| 670 | |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 671 | static Py_hash_t |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 672 | frozenset_hash(PyObject *self) |
| 673 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 674 | PySetObject *so = (PySetObject *)self; |
Raymond Hettinger | 4148195 | 2015-08-07 00:43:39 -0700 | [diff] [blame] | 675 | Py_uhash_t hash = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 676 | setentry *entry; |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 677 | |
Raymond Hettinger | b501a27 | 2015-08-06 22:15:22 -0700 | [diff] [blame] | 678 | if (so->hash != -1) |
| 679 | return so->hash; |
| 680 | |
Raymond Hettinger | fbffdef | 2015-08-01 09:53:00 -0700 | [diff] [blame] | 681 | /* Xor-in shuffled bits from every entry's hash field because xor is |
| 682 | commutative and a frozenset hash should be independent of order. |
| 683 | |
| 684 | For speed, include null entries and dummy entries and then |
| 685 | subtract out their effect afterwards so that the final hash |
| 686 | depends only on active entries. This allows the code to be |
| 687 | vectorized by the compiler and it saves the unpredictable |
| 688 | branches that would arise when trying to exclude null and dummy |
| 689 | entries on every iteration. */ |
| 690 | |
| 691 | for (entry = so->table; entry <= &so->table[so->mask]; entry++) |
| 692 | hash ^= _shuffle_bits(entry->hash); |
| 693 | |
Raymond Hettinger | a286a51 | 2015-08-01 11:07:11 -0700 | [diff] [blame] | 694 | /* Remove the effect of an odd number of NULL entries */ |
Raymond Hettinger | fbffdef | 2015-08-01 09:53:00 -0700 | [diff] [blame] | 695 | if ((so->mask + 1 - so->fill) & 1) |
| 696 | hash ^= _shuffle_bits(0); |
| 697 | |
| 698 | /* Remove the effect of an odd number of dummy entries */ |
| 699 | if ((so->fill - so->used) & 1) |
| 700 | hash ^= _shuffle_bits(-1); |
| 701 | |
Raymond Hettinger | 4148195 | 2015-08-07 00:43:39 -0700 | [diff] [blame] | 702 | /* Factor in the number of active entries */ |
| 703 | hash ^= ((Py_uhash_t)PySet_GET_SIZE(self) + 1) * 1927868237UL; |
| 704 | |
Raymond Hettinger | fbffdef | 2015-08-01 09:53:00 -0700 | [diff] [blame] | 705 | /* Disperse patterns arising in nested frozensets */ |
Raymond Hettinger | fa78806 | 2018-01-18 13:23:27 -0800 | [diff] [blame] | 706 | hash ^= (hash >> 11) ^ (hash >> 25); |
Gregory P. Smith | c2176e4 | 2012-12-10 18:32:53 -0800 | [diff] [blame] | 707 | hash = hash * 69069U + 907133923UL; |
Raymond Hettinger | fbffdef | 2015-08-01 09:53:00 -0700 | [diff] [blame] | 708 | |
Raymond Hettinger | 36c0500 | 2015-08-01 10:57:42 -0700 | [diff] [blame] | 709 | /* -1 is reserved as an error code */ |
Victor Stinner | 12174a5 | 2014-08-15 23:17:38 +0200 | [diff] [blame] | 710 | if (hash == (Py_uhash_t)-1) |
Gregory P. Smith | 27cbcd6 | 2012-12-10 18:15:46 -0800 | [diff] [blame] | 711 | hash = 590923713UL; |
Raymond Hettinger | 36c0500 | 2015-08-01 10:57:42 -0700 | [diff] [blame] | 712 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 713 | so->hash = hash; |
| 714 | return hash; |
Raymond Hettinger | f408ddf | 2005-08-17 00:27:42 +0000 | [diff] [blame] | 715 | } |
| 716 | |
Raymond Hettinger | a9d9936 | 2005-08-05 00:01:15 +0000 | [diff] [blame] | 717 | /***** Set iterator type ***********************************************/ |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 718 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 719 | typedef struct { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 720 | PyObject_HEAD |
| 721 | PySetObject *si_set; /* Set to NULL when iterator is exhausted */ |
| 722 | Py_ssize_t si_used; |
Raymond Hettinger | 9632a7d | 2015-07-07 15:29:24 -0700 | [diff] [blame] | 723 | Py_ssize_t si_pos; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 724 | Py_ssize_t len; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 725 | } setiterobject; |
| 726 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 727 | static void |
| 728 | setiter_dealloc(setiterobject *si) |
| 729 | { |
INADA Naoki | a6296d3 | 2017-08-24 14:55:17 +0900 | [diff] [blame] | 730 | /* bpo-31095: UnTrack is needed before calling any callbacks */ |
| 731 | _PyObject_GC_UNTRACK(si); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 732 | Py_XDECREF(si->si_set); |
| 733 | PyObject_GC_Del(si); |
Antoine Pitrou | 7ddda78 | 2009-01-01 15:35:33 +0000 | [diff] [blame] | 734 | } |
| 735 | |
| 736 | static int |
| 737 | setiter_traverse(setiterobject *si, visitproc visit, void *arg) |
| 738 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 739 | Py_VISIT(si->si_set); |
| 740 | return 0; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 741 | } |
| 742 | |
Raymond Hettinger | 6b27cda | 2005-09-24 21:23:05 +0000 | [diff] [blame] | 743 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 744 | setiter_len(setiterobject *si, PyObject *Py_UNUSED(ignored)) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 745 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 746 | Py_ssize_t len = 0; |
| 747 | if (si->si_set != NULL && si->si_used == si->si_set->used) |
| 748 | len = si->len; |
Antoine Pitrou | 671b4d9 | 2010-08-17 17:55:07 +0000 | [diff] [blame] | 749 | return PyLong_FromSsize_t(len); |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 750 | } |
| 751 | |
Armin Rigo | f5b3e36 | 2006-02-11 21:32:43 +0000 | [diff] [blame] | 752 | PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it))."); |
Raymond Hettinger | 6b27cda | 2005-09-24 21:23:05 +0000 | [diff] [blame] | 753 | |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 754 | static PyObject *setiter_iternext(setiterobject *si); |
| 755 | |
| 756 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 757 | setiter_reduce(setiterobject *si, PyObject *Py_UNUSED(ignored)) |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 758 | { |
Serhiy Storchaka | bb86bf4 | 2018-12-11 08:28:18 +0200 | [diff] [blame] | 759 | _Py_IDENTIFIER(iter); |
Ezio Melotti | 0e1af28 | 2012-09-28 16:43:40 +0300 | [diff] [blame] | 760 | /* copy the iterator state */ |
Sergey Fedoseev | 6395844 | 2018-10-20 05:43:33 +0500 | [diff] [blame] | 761 | setiterobject tmp = *si; |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 762 | Py_XINCREF(tmp.si_set); |
Ezio Melotti | 0e1af28 | 2012-09-28 16:43:40 +0300 | [diff] [blame] | 763 | |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 764 | /* iterate the temporary into a list */ |
Sergey Fedoseev | 6395844 | 2018-10-20 05:43:33 +0500 | [diff] [blame] | 765 | PyObject *list = PySequence_List((PyObject*)&tmp); |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 766 | Py_XDECREF(tmp.si_set); |
Sergey Fedoseev | 6395844 | 2018-10-20 05:43:33 +0500 | [diff] [blame] | 767 | if (list == NULL) { |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 768 | return NULL; |
| 769 | } |
Serhiy Storchaka | bb86bf4 | 2018-12-11 08:28:18 +0200 | [diff] [blame] | 770 | return Py_BuildValue("N(N)", _PyEval_GetBuiltinId(&PyId_iter), list); |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 771 | } |
| 772 | |
| 773 | PyDoc_STRVAR(reduce_doc, "Return state information for pickling."); |
| 774 | |
Raymond Hettinger | 6b27cda | 2005-09-24 21:23:05 +0000 | [diff] [blame] | 775 | static PyMethodDef setiter_methods[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 776 | {"__length_hint__", (PyCFunction)setiter_len, METH_NOARGS, length_hint_doc}, |
Kristján Valur Jónsson | 31668b8 | 2012-04-03 10:49:41 +0000 | [diff] [blame] | 777 | {"__reduce__", (PyCFunction)setiter_reduce, METH_NOARGS, reduce_doc}, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 778 | {NULL, NULL} /* sentinel */ |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 779 | }; |
| 780 | |
Raymond Hettinger | 06d8cf8 | 2005-07-31 15:36:06 +0000 | [diff] [blame] | 781 | static PyObject *setiter_iternext(setiterobject *si) |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 782 | { |
Raymond Hettinger | 9632a7d | 2015-07-07 15:29:24 -0700 | [diff] [blame] | 783 | PyObject *key; |
| 784 | Py_ssize_t i, mask; |
Antoine Pitrou | 9ed5f27 | 2013-08-13 20:18:52 +0200 | [diff] [blame] | 785 | setentry *entry; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 786 | PySetObject *so = si->si_set; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 787 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 788 | if (so == NULL) |
| 789 | return NULL; |
| 790 | assert (PyAnySet_Check(so)); |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 791 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 792 | if (si->si_used != so->used) { |
| 793 | PyErr_SetString(PyExc_RuntimeError, |
| 794 | "Set changed size during iteration"); |
| 795 | si->si_used = -1; /* Make this state sticky */ |
| 796 | return NULL; |
| 797 | } |
Raymond Hettinger | 9632a7d | 2015-07-07 15:29:24 -0700 | [diff] [blame] | 798 | |
| 799 | i = si->si_pos; |
| 800 | assert(i>=0); |
| 801 | entry = so->table; |
| 802 | mask = so->mask; |
| 803 | while (i <= mask && (entry[i].key == NULL || entry[i].key == dummy)) |
| 804 | i++; |
| 805 | si->si_pos = i+1; |
| 806 | if (i > mask) |
| 807 | goto fail; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 808 | si->len--; |
Raymond Hettinger | 9632a7d | 2015-07-07 15:29:24 -0700 | [diff] [blame] | 809 | key = entry[i].key; |
| 810 | Py_INCREF(key); |
| 811 | return key; |
| 812 | |
| 813 | fail: |
Raymond Hettinger | 9632a7d | 2015-07-07 15:29:24 -0700 | [diff] [blame] | 814 | si->si_set = NULL; |
Serhiy Storchaka | fbb1c5e | 2016-03-30 20:40:02 +0300 | [diff] [blame] | 815 | Py_DECREF(so); |
Raymond Hettinger | 9632a7d | 2015-07-07 15:29:24 -0700 | [diff] [blame] | 816 | return NULL; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 817 | } |
| 818 | |
Christian Heimes | a22e8bd | 2007-11-29 22:35:39 +0000 | [diff] [blame] | 819 | PyTypeObject PySetIter_Type = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 820 | PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| 821 | "set_iterator", /* tp_name */ |
| 822 | sizeof(setiterobject), /* tp_basicsize */ |
| 823 | 0, /* tp_itemsize */ |
| 824 | /* methods */ |
| 825 | (destructor)setiter_dealloc, /* tp_dealloc */ |
Jeroen Demeyer | 530f506 | 2019-05-31 04:13:39 +0200 | [diff] [blame] | 826 | 0, /* tp_vectorcall_offset */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 827 | 0, /* tp_getattr */ |
| 828 | 0, /* tp_setattr */ |
Jeroen Demeyer | 530f506 | 2019-05-31 04:13:39 +0200 | [diff] [blame] | 829 | 0, /* tp_as_async */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 830 | 0, /* tp_repr */ |
| 831 | 0, /* tp_as_number */ |
| 832 | 0, /* tp_as_sequence */ |
| 833 | 0, /* tp_as_mapping */ |
| 834 | 0, /* tp_hash */ |
| 835 | 0, /* tp_call */ |
| 836 | 0, /* tp_str */ |
| 837 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 838 | 0, /* tp_setattro */ |
| 839 | 0, /* tp_as_buffer */ |
Raymond Hettinger | 5d2385f | 2015-07-08 11:52:27 -0700 | [diff] [blame] | 840 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 841 | 0, /* tp_doc */ |
| 842 | (traverseproc)setiter_traverse, /* tp_traverse */ |
| 843 | 0, /* tp_clear */ |
| 844 | 0, /* tp_richcompare */ |
| 845 | 0, /* tp_weaklistoffset */ |
| 846 | PyObject_SelfIter, /* tp_iter */ |
| 847 | (iternextfunc)setiter_iternext, /* tp_iternext */ |
| 848 | setiter_methods, /* tp_methods */ |
| 849 | 0, |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 850 | }; |
| 851 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 852 | static PyObject * |
| 853 | set_iter(PySetObject *so) |
| 854 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 855 | setiterobject *si = PyObject_GC_New(setiterobject, &PySetIter_Type); |
| 856 | if (si == NULL) |
| 857 | return NULL; |
| 858 | Py_INCREF(so); |
| 859 | si->si_set = so; |
| 860 | si->si_used = so->used; |
Raymond Hettinger | 9632a7d | 2015-07-07 15:29:24 -0700 | [diff] [blame] | 861 | si->si_pos = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 862 | si->len = so->used; |
| 863 | _PyObject_GC_TRACK(si); |
| 864 | return (PyObject *)si; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 865 | } |
| 866 | |
Raymond Hettinger | d794666 | 2005-08-01 21:39:29 +0000 | [diff] [blame] | 867 | static int |
Raymond Hettinger | d794666 | 2005-08-01 21:39:29 +0000 | [diff] [blame] | 868 | set_update_internal(PySetObject *so, PyObject *other) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 869 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 870 | PyObject *key, *it; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 871 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 872 | if (PyAnySet_Check(other)) |
| 873 | return set_merge(so, other); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 874 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 875 | if (PyDict_CheckExact(other)) { |
| 876 | PyObject *value; |
| 877 | Py_ssize_t pos = 0; |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 878 | Py_hash_t hash; |
Serhiy Storchaka | 5ab81d7 | 2016-12-16 16:18:57 +0200 | [diff] [blame] | 879 | Py_ssize_t dictsize = PyDict_GET_SIZE(other); |
Thomas Wouters | cf297e4 | 2007-02-23 15:07:44 +0000 | [diff] [blame] | 880 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 881 | /* Do one big resize at the start, rather than |
| 882 | * incrementally resizing as we insert new keys. Expect |
| 883 | * that there will be no (or few) overlapping keys. |
| 884 | */ |
Raymond Hettinger | c2480dc | 2015-07-04 08:46:31 -0700 | [diff] [blame] | 885 | if (dictsize < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 886 | return -1; |
Raymond Hettinger | 5cd87a8 | 2017-02-04 02:43:42 -0800 | [diff] [blame] | 887 | if ((so->fill + dictsize)*5 >= so->mask*3) { |
INADA Naoki | e82cf86 | 2017-04-01 17:20:25 +0900 | [diff] [blame] | 888 | if (set_table_resize(so, (so->used + dictsize)*2) != 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 889 | return -1; |
| 890 | } |
| 891 | while (_PyDict_Next(other, &pos, &key, &value, &hash)) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 892 | if (set_add_entry(so, key, hash)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 893 | return -1; |
| 894 | } |
| 895 | return 0; |
| 896 | } |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 897 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 898 | it = PyObject_GetIter(other); |
| 899 | if (it == NULL) |
| 900 | return -1; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 901 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 902 | while ((key = PyIter_Next(it)) != NULL) { |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 903 | if (set_add_key(so, key)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 904 | Py_DECREF(it); |
| 905 | Py_DECREF(key); |
| 906 | return -1; |
| 907 | } |
| 908 | Py_DECREF(key); |
| 909 | } |
| 910 | Py_DECREF(it); |
| 911 | if (PyErr_Occurred()) |
| 912 | return -1; |
| 913 | return 0; |
Raymond Hettinger | d794666 | 2005-08-01 21:39:29 +0000 | [diff] [blame] | 914 | } |
| 915 | |
| 916 | static PyObject * |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 917 | set_update(PySetObject *so, PyObject *args) |
Raymond Hettinger | d794666 | 2005-08-01 21:39:29 +0000 | [diff] [blame] | 918 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 919 | Py_ssize_t i; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 920 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 921 | for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) { |
| 922 | PyObject *other = PyTuple_GET_ITEM(args, i); |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 923 | if (set_update_internal(so, other)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 924 | return NULL; |
| 925 | } |
| 926 | Py_RETURN_NONE; |
Raymond Hettinger | a38123e | 2003-11-24 22:18:49 +0000 | [diff] [blame] | 927 | } |
| 928 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 929 | PyDoc_STRVAR(update_doc, |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 930 | "Update a set with the union of itself and others."); |
Raymond Hettinger | a38123e | 2003-11-24 22:18:49 +0000 | [diff] [blame] | 931 | |
Raymond Hettinger | 426d995 | 2014-05-18 21:40:20 +0100 | [diff] [blame] | 932 | /* XXX Todo: |
| 933 | If aligned memory allocations become available, make the |
| 934 | set object 64 byte aligned so that most of the fields |
| 935 | can be retrieved or updated in a single cache line. |
| 936 | */ |
| 937 | |
Raymond Hettinger | a38123e | 2003-11-24 22:18:49 +0000 | [diff] [blame] | 938 | static PyObject * |
| 939 | make_new_set(PyTypeObject *type, PyObject *iterable) |
| 940 | { |
Dong-hee Na | 1c60567 | 2020-03-19 02:30:50 +0900 | [diff] [blame] | 941 | assert(PyType_Check(type)); |
Raymond Hettinger | 8421d71 | 2016-04-29 01:37:05 -0700 | [diff] [blame] | 942 | PySetObject *so; |
Raymond Hettinger | a38123e | 2003-11-24 22:18:49 +0000 | [diff] [blame] | 943 | |
Raymond Hettinger | 8f8839e | 2013-09-07 20:26:50 -0700 | [diff] [blame] | 944 | so = (PySetObject *)type->tp_alloc(type, 0); |
| 945 | if (so == NULL) |
| 946 | return NULL; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 947 | |
Raymond Hettinger | 4ea9080 | 2013-09-07 21:01:29 -0700 | [diff] [blame] | 948 | so->fill = 0; |
| 949 | so->used = 0; |
| 950 | so->mask = PySet_MINSIZE - 1; |
| 951 | so->table = so->smalltable; |
Raymond Hettinger | 4ea9080 | 2013-09-07 21:01:29 -0700 | [diff] [blame] | 952 | so->hash = -1; |
Raymond Hettinger | 1202a47 | 2015-01-18 13:12:42 -0800 | [diff] [blame] | 953 | so->finger = 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 954 | so->weakreflist = NULL; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 955 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 956 | if (iterable != NULL) { |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 957 | if (set_update_internal(so, iterable)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 958 | Py_DECREF(so); |
| 959 | return NULL; |
| 960 | } |
| 961 | } |
Raymond Hettinger | a38123e | 2003-11-24 22:18:49 +0000 | [diff] [blame] | 962 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 963 | return (PyObject *)so; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 964 | } |
| 965 | |
Raymond Hettinger | 7d99f09 | 2008-11-16 11:44:54 +0000 | [diff] [blame] | 966 | static PyObject * |
| 967 | make_new_set_basetype(PyTypeObject *type, PyObject *iterable) |
| 968 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 969 | if (type != &PySet_Type && type != &PyFrozenSet_Type) { |
| 970 | if (PyType_IsSubtype(type, &PySet_Type)) |
| 971 | type = &PySet_Type; |
| 972 | else |
| 973 | type = &PyFrozenSet_Type; |
| 974 | } |
| 975 | return make_new_set(type, iterable); |
Raymond Hettinger | 7d99f09 | 2008-11-16 11:44:54 +0000 | [diff] [blame] | 976 | } |
| 977 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 978 | static PyObject * |
Dong-hee Na | 1c60567 | 2020-03-19 02:30:50 +0900 | [diff] [blame] | 979 | make_new_frozenset(PyTypeObject *type, PyObject *iterable) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 980 | { |
Dong-hee Na | 1c60567 | 2020-03-19 02:30:50 +0900 | [diff] [blame] | 981 | if (type != &PyFrozenSet_Type) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 982 | return make_new_set(type, iterable); |
Dong-hee Na | 1c60567 | 2020-03-19 02:30:50 +0900 | [diff] [blame] | 983 | } |
Raymond Hettinger | d794666 | 2005-08-01 21:39:29 +0000 | [diff] [blame] | 984 | |
Raymond Hettinger | f9bd05e | 2020-06-23 08:42:55 -0700 | [diff] [blame] | 985 | if (iterable != NULL && PyFrozenSet_CheckExact(iterable)) { |
| 986 | /* frozenset(f) is idempotent */ |
| 987 | Py_INCREF(iterable); |
| 988 | return iterable; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 989 | } |
Raymond Hettinger | f9bd05e | 2020-06-23 08:42:55 -0700 | [diff] [blame] | 990 | return make_new_set((PyTypeObject *)type, iterable); |
Raymond Hettinger | d794666 | 2005-08-01 21:39:29 +0000 | [diff] [blame] | 991 | } |
| 992 | |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 993 | static PyObject * |
Dong-hee Na | 1c60567 | 2020-03-19 02:30:50 +0900 | [diff] [blame] | 994 | frozenset_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| 995 | { |
| 996 | PyObject *iterable = NULL; |
| 997 | |
| 998 | if (type == &PyFrozenSet_Type && !_PyArg_NoKeywords("frozenset", kwds)) { |
| 999 | return NULL; |
| 1000 | } |
| 1001 | |
| 1002 | if (!PyArg_UnpackTuple(args, type->tp_name, 0, 1, &iterable)) { |
| 1003 | return NULL; |
| 1004 | } |
| 1005 | |
| 1006 | return make_new_frozenset(type, iterable); |
| 1007 | } |
| 1008 | |
| 1009 | static PyObject * |
| 1010 | frozenset_vectorcall(PyObject *type, PyObject * const*args, |
| 1011 | size_t nargsf, PyObject *kwnames) |
| 1012 | { |
| 1013 | if (!_PyArg_NoKwnames("frozenset", kwnames)) { |
| 1014 | return NULL; |
| 1015 | } |
| 1016 | |
| 1017 | Py_ssize_t nargs = PyVectorcall_NARGS(nargsf); |
| 1018 | if (!_PyArg_CheckPositional("frozenset", nargs, 0, 1)) { |
| 1019 | return NULL; |
| 1020 | } |
| 1021 | |
| 1022 | PyObject *iterable = (nargs ? args[0] : NULL); |
| 1023 | return make_new_frozenset((PyTypeObject *)type, iterable); |
| 1024 | } |
| 1025 | |
| 1026 | static PyObject * |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 1027 | set_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| 1028 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1029 | return make_new_set(type, NULL); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 1030 | } |
| 1031 | |
Raymond Hettinger | 934d63e | 2005-07-31 01:33:10 +0000 | [diff] [blame] | 1032 | /* set_swap_bodies() switches the contents of any two sets by moving their |
| 1033 | internal data pointers and, if needed, copying the internal smalltables. |
| 1034 | Semantically equivalent to: |
| 1035 | |
| 1036 | t=set(a); a.clear(); a.update(b); b.clear(); b.update(t); del t |
| 1037 | |
| 1038 | The function always succeeds and it leaves both objects in a stable state. |
Raymond Hettinger | 4d45c10 | 2015-01-25 16:27:40 -0800 | [diff] [blame] | 1039 | Useful for operations that update in-place (by allowing an intermediate |
| 1040 | result to be swapped into one of the original inputs). |
Raymond Hettinger | 934d63e | 2005-07-31 01:33:10 +0000 | [diff] [blame] | 1041 | */ |
| 1042 | |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 1043 | static void |
| 1044 | set_swap_bodies(PySetObject *a, PySetObject *b) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1045 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1046 | Py_ssize_t t; |
| 1047 | setentry *u; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1048 | setentry tab[PySet_MINSIZE]; |
Antoine Pitrou | fbb1c61 | 2010-10-23 17:37:54 +0000 | [diff] [blame] | 1049 | Py_hash_t h; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 1050 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1051 | t = a->fill; a->fill = b->fill; b->fill = t; |
| 1052 | t = a->used; a->used = b->used; b->used = t; |
| 1053 | t = a->mask; a->mask = b->mask; b->mask = t; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 1054 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1055 | u = a->table; |
| 1056 | if (a->table == a->smalltable) |
| 1057 | u = b->smalltable; |
| 1058 | a->table = b->table; |
| 1059 | if (b->table == b->smalltable) |
| 1060 | a->table = a->smalltable; |
| 1061 | b->table = u; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 1062 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1063 | if (a->table == a->smalltable || b->table == b->smalltable) { |
| 1064 | memcpy(tab, a->smalltable, sizeof(tab)); |
| 1065 | memcpy(a->smalltable, b->smalltable, sizeof(tab)); |
| 1066 | memcpy(b->smalltable, tab, sizeof(tab)); |
| 1067 | } |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 1068 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1069 | if (PyType_IsSubtype(Py_TYPE(a), &PyFrozenSet_Type) && |
| 1070 | PyType_IsSubtype(Py_TYPE(b), &PyFrozenSet_Type)) { |
| 1071 | h = a->hash; a->hash = b->hash; b->hash = h; |
| 1072 | } else { |
| 1073 | a->hash = -1; |
| 1074 | b->hash = -1; |
| 1075 | } |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1076 | } |
| 1077 | |
Raymond Hettinger | 8f5cdaa | 2003-12-13 11:26:12 +0000 | [diff] [blame] | 1078 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1079 | set_copy(PySetObject *so, PyObject *Py_UNUSED(ignored)) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1080 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1081 | return make_new_set_basetype(Py_TYPE(so), (PyObject *)so); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1082 | } |
| 1083 | |
Raymond Hettinger | 49ba4c3 | 2003-11-23 02:49:05 +0000 | [diff] [blame] | 1084 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1085 | frozenset_copy(PySetObject *so, PyObject *Py_UNUSED(ignored)) |
Raymond Hettinger | 49ba4c3 | 2003-11-23 02:49:05 +0000 | [diff] [blame] | 1086 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1087 | if (PyFrozenSet_CheckExact(so)) { |
| 1088 | Py_INCREF(so); |
| 1089 | return (PyObject *)so; |
| 1090 | } |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1091 | return set_copy(so, NULL); |
Raymond Hettinger | 49ba4c3 | 2003-11-23 02:49:05 +0000 | [diff] [blame] | 1092 | } |
| 1093 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1094 | PyDoc_STRVAR(copy_doc, "Return a shallow copy of a set."); |
| 1095 | |
| 1096 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1097 | set_clear(PySetObject *so, PyObject *Py_UNUSED(ignored)) |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1098 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1099 | set_clear_internal(so); |
| 1100 | Py_RETURN_NONE; |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1101 | } |
| 1102 | |
| 1103 | PyDoc_STRVAR(clear_doc, "Remove all elements from this set."); |
| 1104 | |
| 1105 | static PyObject * |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1106 | set_union(PySetObject *so, PyObject *args) |
Raymond Hettinger | f5f41bf | 2003-11-24 02:57:33 +0000 | [diff] [blame] | 1107 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1108 | PySetObject *result; |
| 1109 | PyObject *other; |
| 1110 | Py_ssize_t i; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1111 | |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1112 | result = (PySetObject *)set_copy(so, NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1113 | if (result == NULL) |
| 1114 | return NULL; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1115 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1116 | for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) { |
| 1117 | other = PyTuple_GET_ITEM(args, i); |
| 1118 | if ((PyObject *)so == other) |
| 1119 | continue; |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 1120 | if (set_update_internal(result, other)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1121 | Py_DECREF(result); |
| 1122 | return NULL; |
| 1123 | } |
| 1124 | } |
| 1125 | return (PyObject *)result; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1126 | } |
| 1127 | |
| 1128 | PyDoc_STRVAR(union_doc, |
| 1129 | "Return the union of sets as a new set.\n\ |
| 1130 | \n\ |
| 1131 | (i.e. all elements that are in either set.)"); |
| 1132 | |
| 1133 | static PyObject * |
| 1134 | set_or(PySetObject *so, PyObject *other) |
| 1135 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1136 | PySetObject *result; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1137 | |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1138 | if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) |
| 1139 | Py_RETURN_NOTIMPLEMENTED; |
Raymond Hettinger | f5f41bf | 2003-11-24 02:57:33 +0000 | [diff] [blame] | 1140 | |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1141 | result = (PySetObject *)set_copy(so, NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1142 | if (result == NULL) |
| 1143 | return NULL; |
| 1144 | if ((PyObject *)so == other) |
| 1145 | return (PyObject *)result; |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 1146 | if (set_update_internal(result, other)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1147 | Py_DECREF(result); |
| 1148 | return NULL; |
| 1149 | } |
| 1150 | return (PyObject *)result; |
Raymond Hettinger | f5f41bf | 2003-11-24 02:57:33 +0000 | [diff] [blame] | 1151 | } |
| 1152 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1153 | static PyObject * |
| 1154 | set_ior(PySetObject *so, PyObject *other) |
| 1155 | { |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1156 | if (!PyAnySet_Check(other)) |
| 1157 | Py_RETURN_NOTIMPLEMENTED; |
| 1158 | |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 1159 | if (set_update_internal(so, other)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1160 | return NULL; |
| 1161 | Py_INCREF(so); |
| 1162 | return (PyObject *)so; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1163 | } |
| 1164 | |
| 1165 | static PyObject * |
| 1166 | set_intersection(PySetObject *so, PyObject *other) |
| 1167 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1168 | PySetObject *result; |
| 1169 | PyObject *key, *it, *tmp; |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1170 | Py_hash_t hash; |
| 1171 | int rv; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1172 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1173 | if ((PyObject *)so == other) |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1174 | return set_copy(so, NULL); |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1175 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1176 | result = (PySetObject *)make_new_set_basetype(Py_TYPE(so), NULL); |
| 1177 | if (result == NULL) |
| 1178 | return NULL; |
Raymond Hettinger | f5f41bf | 2003-11-24 02:57:33 +0000 | [diff] [blame] | 1179 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1180 | if (PyAnySet_Check(other)) { |
| 1181 | Py_ssize_t pos = 0; |
| 1182 | setentry *entry; |
Raymond Hettinger | b02c35e | 2005-08-12 20:48:39 +0000 | [diff] [blame] | 1183 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1184 | if (PySet_GET_SIZE(other) > PySet_GET_SIZE(so)) { |
| 1185 | tmp = (PyObject *)so; |
| 1186 | so = (PySetObject *)other; |
| 1187 | other = tmp; |
| 1188 | } |
Raymond Hettinger | b02c35e | 2005-08-12 20:48:39 +0000 | [diff] [blame] | 1189 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1190 | while (set_next((PySetObject *)other, &pos, &entry)) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1191 | key = entry->key; |
| 1192 | hash = entry->hash; |
| 1193 | rv = set_contains_entry(so, key, hash); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1194 | if (rv < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1195 | Py_DECREF(result); |
| 1196 | return NULL; |
| 1197 | } |
| 1198 | if (rv) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1199 | if (set_add_entry(result, key, hash)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1200 | Py_DECREF(result); |
| 1201 | return NULL; |
| 1202 | } |
| 1203 | } |
| 1204 | } |
| 1205 | return (PyObject *)result; |
| 1206 | } |
Raymond Hettinger | f5f41bf | 2003-11-24 02:57:33 +0000 | [diff] [blame] | 1207 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1208 | it = PyObject_GetIter(other); |
| 1209 | if (it == NULL) { |
| 1210 | Py_DECREF(result); |
| 1211 | return NULL; |
| 1212 | } |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1213 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1214 | while ((key = PyIter_Next(it)) != NULL) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1215 | hash = PyObject_Hash(key); |
Raymond Hettinger | 11ce8e6 | 2015-07-06 19:08:49 -0700 | [diff] [blame] | 1216 | if (hash == -1) |
| 1217 | goto error; |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1218 | rv = set_contains_entry(so, key, hash); |
Raymond Hettinger | 11ce8e6 | 2015-07-06 19:08:49 -0700 | [diff] [blame] | 1219 | if (rv < 0) |
| 1220 | goto error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1221 | if (rv) { |
Raymond Hettinger | 11ce8e6 | 2015-07-06 19:08:49 -0700 | [diff] [blame] | 1222 | if (set_add_entry(result, key, hash)) |
| 1223 | goto error; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1224 | } |
| 1225 | Py_DECREF(key); |
| 1226 | } |
| 1227 | Py_DECREF(it); |
| 1228 | if (PyErr_Occurred()) { |
| 1229 | Py_DECREF(result); |
| 1230 | return NULL; |
| 1231 | } |
| 1232 | return (PyObject *)result; |
Raymond Hettinger | 11ce8e6 | 2015-07-06 19:08:49 -0700 | [diff] [blame] | 1233 | error: |
| 1234 | Py_DECREF(it); |
| 1235 | Py_DECREF(result); |
| 1236 | Py_DECREF(key); |
| 1237 | return NULL; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1238 | } |
| 1239 | |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1240 | static PyObject * |
| 1241 | set_intersection_multi(PySetObject *so, PyObject *args) |
| 1242 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1243 | Py_ssize_t i; |
| 1244 | PyObject *result = (PyObject *)so; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1245 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1246 | if (PyTuple_GET_SIZE(args) == 0) |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1247 | return set_copy(so, NULL); |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1248 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1249 | Py_INCREF(so); |
| 1250 | for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) { |
| 1251 | PyObject *other = PyTuple_GET_ITEM(args, i); |
| 1252 | PyObject *newresult = set_intersection((PySetObject *)result, other); |
| 1253 | if (newresult == NULL) { |
| 1254 | Py_DECREF(result); |
| 1255 | return NULL; |
| 1256 | } |
| 1257 | Py_DECREF(result); |
| 1258 | result = newresult; |
| 1259 | } |
| 1260 | return result; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1261 | } |
| 1262 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1263 | PyDoc_STRVAR(intersection_doc, |
| 1264 | "Return the intersection of two sets as a new set.\n\ |
| 1265 | \n\ |
| 1266 | (i.e. all elements that are in both sets.)"); |
| 1267 | |
| 1268 | static PyObject * |
| 1269 | set_intersection_update(PySetObject *so, PyObject *other) |
| 1270 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1271 | PyObject *tmp; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1272 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1273 | tmp = set_intersection(so, other); |
| 1274 | if (tmp == NULL) |
| 1275 | return NULL; |
| 1276 | set_swap_bodies(so, (PySetObject *)tmp); |
| 1277 | Py_DECREF(tmp); |
| 1278 | Py_RETURN_NONE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1279 | } |
| 1280 | |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1281 | static PyObject * |
| 1282 | set_intersection_update_multi(PySetObject *so, PyObject *args) |
| 1283 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1284 | PyObject *tmp; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1285 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1286 | tmp = set_intersection_multi(so, args); |
| 1287 | if (tmp == NULL) |
| 1288 | return NULL; |
| 1289 | set_swap_bodies(so, (PySetObject *)tmp); |
| 1290 | Py_DECREF(tmp); |
| 1291 | Py_RETURN_NONE; |
Georg Brandl | c28e1fa | 2008-06-10 19:20:26 +0000 | [diff] [blame] | 1292 | } |
| 1293 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1294 | PyDoc_STRVAR(intersection_update_doc, |
| 1295 | "Update a set with the intersection of itself and another."); |
| 1296 | |
| 1297 | static PyObject * |
| 1298 | set_and(PySetObject *so, PyObject *other) |
| 1299 | { |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1300 | if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) |
| 1301 | Py_RETURN_NOTIMPLEMENTED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1302 | return set_intersection(so, other); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1303 | } |
| 1304 | |
| 1305 | static PyObject * |
| 1306 | set_iand(PySetObject *so, PyObject *other) |
| 1307 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1308 | PyObject *result; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1309 | |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1310 | if (!PyAnySet_Check(other)) |
| 1311 | Py_RETURN_NOTIMPLEMENTED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1312 | result = set_intersection_update(so, other); |
| 1313 | if (result == NULL) |
| 1314 | return NULL; |
| 1315 | Py_DECREF(result); |
| 1316 | Py_INCREF(so); |
| 1317 | return (PyObject *)so; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1318 | } |
| 1319 | |
Guido van Rossum | 58da931 | 2007-11-10 23:39:45 +0000 | [diff] [blame] | 1320 | static PyObject * |
| 1321 | set_isdisjoint(PySetObject *so, PyObject *other) |
| 1322 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1323 | PyObject *key, *it, *tmp; |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1324 | int rv; |
Guido van Rossum | 58da931 | 2007-11-10 23:39:45 +0000 | [diff] [blame] | 1325 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1326 | if ((PyObject *)so == other) { |
| 1327 | if (PySet_GET_SIZE(so) == 0) |
| 1328 | Py_RETURN_TRUE; |
| 1329 | else |
| 1330 | Py_RETURN_FALSE; |
| 1331 | } |
Guido van Rossum | 58da931 | 2007-11-10 23:39:45 +0000 | [diff] [blame] | 1332 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1333 | if (PyAnySet_CheckExact(other)) { |
| 1334 | Py_ssize_t pos = 0; |
| 1335 | setentry *entry; |
Guido van Rossum | 58da931 | 2007-11-10 23:39:45 +0000 | [diff] [blame] | 1336 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1337 | if (PySet_GET_SIZE(other) > PySet_GET_SIZE(so)) { |
| 1338 | tmp = (PyObject *)so; |
| 1339 | so = (PySetObject *)other; |
| 1340 | other = tmp; |
| 1341 | } |
| 1342 | while (set_next((PySetObject *)other, &pos, &entry)) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1343 | rv = set_contains_entry(so, entry->key, entry->hash); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1344 | if (rv < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1345 | return NULL; |
| 1346 | if (rv) |
| 1347 | Py_RETURN_FALSE; |
| 1348 | } |
| 1349 | Py_RETURN_TRUE; |
| 1350 | } |
Guido van Rossum | 58da931 | 2007-11-10 23:39:45 +0000 | [diff] [blame] | 1351 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1352 | it = PyObject_GetIter(other); |
| 1353 | if (it == NULL) |
| 1354 | return NULL; |
Guido van Rossum | 58da931 | 2007-11-10 23:39:45 +0000 | [diff] [blame] | 1355 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1356 | while ((key = PyIter_Next(it)) != NULL) { |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 1357 | Py_hash_t hash = PyObject_Hash(key); |
Guido van Rossum | 58da931 | 2007-11-10 23:39:45 +0000 | [diff] [blame] | 1358 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1359 | if (hash == -1) { |
| 1360 | Py_DECREF(key); |
| 1361 | Py_DECREF(it); |
| 1362 | return NULL; |
| 1363 | } |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1364 | rv = set_contains_entry(so, key, hash); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1365 | Py_DECREF(key); |
Raymond Hettinger | c2480dc | 2015-07-04 08:46:31 -0700 | [diff] [blame] | 1366 | if (rv < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1367 | Py_DECREF(it); |
| 1368 | return NULL; |
| 1369 | } |
| 1370 | if (rv) { |
| 1371 | Py_DECREF(it); |
| 1372 | Py_RETURN_FALSE; |
| 1373 | } |
| 1374 | } |
| 1375 | Py_DECREF(it); |
| 1376 | if (PyErr_Occurred()) |
| 1377 | return NULL; |
| 1378 | Py_RETURN_TRUE; |
Guido van Rossum | 58da931 | 2007-11-10 23:39:45 +0000 | [diff] [blame] | 1379 | } |
| 1380 | |
| 1381 | PyDoc_STRVAR(isdisjoint_doc, |
| 1382 | "Return True if two sets have a null intersection."); |
| 1383 | |
Neal Norwitz | 6576bd8 | 2005-11-13 18:41:28 +0000 | [diff] [blame] | 1384 | static int |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1385 | set_difference_update_internal(PySetObject *so, PyObject *other) |
| 1386 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1387 | if ((PyObject *)so == other) |
| 1388 | return set_clear_internal(so); |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1389 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1390 | if (PyAnySet_Check(other)) { |
| 1391 | setentry *entry; |
| 1392 | Py_ssize_t pos = 0; |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1393 | |
Raymond Hettinger | 88ea166 | 2019-08-29 09:02:58 -0700 | [diff] [blame] | 1394 | /* Optimization: When the other set is more than 8 times |
| 1395 | larger than the base set, replace the other set with |
| 1396 | interesection of the two sets. |
| 1397 | */ |
| 1398 | if ((PySet_GET_SIZE(other) >> 3) > PySet_GET_SIZE(so)) { |
| 1399 | other = set_intersection(so, other); |
| 1400 | if (other == NULL) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1401 | return -1; |
Raymond Hettinger | 88ea166 | 2019-08-29 09:02:58 -0700 | [diff] [blame] | 1402 | } else { |
| 1403 | Py_INCREF(other); |
| 1404 | } |
| 1405 | |
| 1406 | while (set_next((PySetObject *)other, &pos, &entry)) |
| 1407 | if (set_discard_entry(so, entry->key, entry->hash) < 0) { |
| 1408 | Py_DECREF(other); |
| 1409 | return -1; |
| 1410 | } |
| 1411 | |
| 1412 | Py_DECREF(other); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1413 | } else { |
| 1414 | PyObject *key, *it; |
| 1415 | it = PyObject_GetIter(other); |
| 1416 | if (it == NULL) |
| 1417 | return -1; |
| 1418 | |
| 1419 | while ((key = PyIter_Next(it)) != NULL) { |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1420 | if (set_discard_key(so, key) < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1421 | Py_DECREF(it); |
| 1422 | Py_DECREF(key); |
| 1423 | return -1; |
| 1424 | } |
| 1425 | Py_DECREF(key); |
| 1426 | } |
| 1427 | Py_DECREF(it); |
| 1428 | if (PyErr_Occurred()) |
| 1429 | return -1; |
| 1430 | } |
Raymond Hettinger | e186c76 | 2015-07-04 11:28:35 -0700 | [diff] [blame] | 1431 | /* If more than 1/4th are dummies, then resize them away. */ |
| 1432 | if ((size_t)(so->fill - so->used) <= (size_t)so->mask / 4) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1433 | return 0; |
INADA Naoki | e82cf86 | 2017-04-01 17:20:25 +0900 | [diff] [blame] | 1434 | return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4); |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1435 | } |
| 1436 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1437 | static PyObject * |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1438 | set_difference_update(PySetObject *so, PyObject *args) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1439 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1440 | Py_ssize_t i; |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1441 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1442 | for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) { |
| 1443 | PyObject *other = PyTuple_GET_ITEM(args, i); |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 1444 | if (set_difference_update_internal(so, other)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1445 | return NULL; |
| 1446 | } |
| 1447 | Py_RETURN_NONE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1448 | } |
| 1449 | |
| 1450 | PyDoc_STRVAR(difference_update_doc, |
| 1451 | "Remove all elements of another set from this set."); |
| 1452 | |
| 1453 | static PyObject * |
Antoine Pitrou | 715f3cd | 2010-11-30 22:23:20 +0000 | [diff] [blame] | 1454 | set_copy_and_difference(PySetObject *so, PyObject *other) |
| 1455 | { |
| 1456 | PyObject *result; |
| 1457 | |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1458 | result = set_copy(so, NULL); |
Antoine Pitrou | 715f3cd | 2010-11-30 22:23:20 +0000 | [diff] [blame] | 1459 | if (result == NULL) |
| 1460 | return NULL; |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1461 | if (set_difference_update_internal((PySetObject *) result, other) == 0) |
Antoine Pitrou | 715f3cd | 2010-11-30 22:23:20 +0000 | [diff] [blame] | 1462 | return result; |
| 1463 | Py_DECREF(result); |
| 1464 | return NULL; |
| 1465 | } |
| 1466 | |
| 1467 | static PyObject * |
Raymond Hettinger | fb4e33a | 2003-12-15 13:23:55 +0000 | [diff] [blame] | 1468 | set_difference(PySetObject *so, PyObject *other) |
| 1469 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1470 | PyObject *result; |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1471 | PyObject *key; |
| 1472 | Py_hash_t hash; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1473 | setentry *entry; |
Serhiy Storchaka | bf623ae | 2017-04-19 20:03:52 +0300 | [diff] [blame] | 1474 | Py_ssize_t pos = 0, other_size; |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1475 | int rv; |
Raymond Hettinger | fb4e33a | 2003-12-15 13:23:55 +0000 | [diff] [blame] | 1476 | |
Serhiy Storchaka | bf623ae | 2017-04-19 20:03:52 +0300 | [diff] [blame] | 1477 | if (PyAnySet_Check(other)) { |
| 1478 | other_size = PySet_GET_SIZE(other); |
| 1479 | } |
| 1480 | else if (PyDict_CheckExact(other)) { |
| 1481 | other_size = PyDict_GET_SIZE(other); |
| 1482 | } |
| 1483 | else { |
Antoine Pitrou | 715f3cd | 2010-11-30 22:23:20 +0000 | [diff] [blame] | 1484 | return set_copy_and_difference(so, other); |
| 1485 | } |
| 1486 | |
| 1487 | /* If len(so) much more than len(other), it's more efficient to simply copy |
| 1488 | * so and then iterate other looking for common elements. */ |
Serhiy Storchaka | bf623ae | 2017-04-19 20:03:52 +0300 | [diff] [blame] | 1489 | if ((PySet_GET_SIZE(so) >> 2) > other_size) { |
Antoine Pitrou | 715f3cd | 2010-11-30 22:23:20 +0000 | [diff] [blame] | 1490 | return set_copy_and_difference(so, other); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1491 | } |
Raymond Hettinger | fb4e33a | 2003-12-15 13:23:55 +0000 | [diff] [blame] | 1492 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1493 | result = make_new_set_basetype(Py_TYPE(so), NULL); |
| 1494 | if (result == NULL) |
| 1495 | return NULL; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 1496 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1497 | if (PyDict_CheckExact(other)) { |
| 1498 | while (set_next(so, &pos, &entry)) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1499 | key = entry->key; |
| 1500 | hash = entry->hash; |
Serhiy Storchaka | fb5db7e | 2020-10-26 08:43:39 +0200 | [diff] [blame] | 1501 | rv = _PyDict_Contains_KnownHash(other, key, hash); |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1502 | if (rv < 0) { |
| 1503 | Py_DECREF(result); |
| 1504 | return NULL; |
| 1505 | } |
| 1506 | if (!rv) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1507 | if (set_add_entry((PySetObject *)result, key, hash)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1508 | Py_DECREF(result); |
| 1509 | return NULL; |
| 1510 | } |
| 1511 | } |
| 1512 | } |
| 1513 | return result; |
| 1514 | } |
| 1515 | |
Antoine Pitrou | 715f3cd | 2010-11-30 22:23:20 +0000 | [diff] [blame] | 1516 | /* Iterate over so, checking for common elements in other. */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1517 | while (set_next(so, &pos, &entry)) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1518 | key = entry->key; |
| 1519 | hash = entry->hash; |
| 1520 | rv = set_contains_entry((PySetObject *)other, key, hash); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1521 | if (rv < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1522 | Py_DECREF(result); |
| 1523 | return NULL; |
| 1524 | } |
| 1525 | if (!rv) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1526 | if (set_add_entry((PySetObject *)result, key, hash)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1527 | Py_DECREF(result); |
| 1528 | return NULL; |
| 1529 | } |
| 1530 | } |
| 1531 | } |
| 1532 | return result; |
Raymond Hettinger | fb4e33a | 2003-12-15 13:23:55 +0000 | [diff] [blame] | 1533 | } |
| 1534 | |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1535 | static PyObject * |
| 1536 | set_difference_multi(PySetObject *so, PyObject *args) |
| 1537 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1538 | Py_ssize_t i; |
| 1539 | PyObject *result, *other; |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1540 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1541 | if (PyTuple_GET_SIZE(args) == 0) |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1542 | return set_copy(so, NULL); |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1543 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1544 | other = PyTuple_GET_ITEM(args, 0); |
| 1545 | result = set_difference(so, other); |
| 1546 | if (result == NULL) |
| 1547 | return NULL; |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1548 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1549 | for (i=1 ; i<PyTuple_GET_SIZE(args) ; i++) { |
| 1550 | other = PyTuple_GET_ITEM(args, i); |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 1551 | if (set_difference_update_internal((PySetObject *)result, other)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1552 | Py_DECREF(result); |
| 1553 | return NULL; |
| 1554 | } |
| 1555 | } |
| 1556 | return result; |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1557 | } |
| 1558 | |
Raymond Hettinger | fb4e33a | 2003-12-15 13:23:55 +0000 | [diff] [blame] | 1559 | PyDoc_STRVAR(difference_doc, |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1560 | "Return the difference of two or more sets as a new set.\n\ |
Raymond Hettinger | fb4e33a | 2003-12-15 13:23:55 +0000 | [diff] [blame] | 1561 | \n\ |
Amaury Forgeot d'Arc | fdfe62d | 2008-06-17 20:36:03 +0000 | [diff] [blame] | 1562 | (i.e. all elements that are in this set but not the others.)"); |
Raymond Hettinger | fb4e33a | 2003-12-15 13:23:55 +0000 | [diff] [blame] | 1563 | static PyObject * |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1564 | set_sub(PySetObject *so, PyObject *other) |
| 1565 | { |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1566 | if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) |
| 1567 | Py_RETURN_NOTIMPLEMENTED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1568 | return set_difference(so, other); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1569 | } |
| 1570 | |
| 1571 | static PyObject * |
| 1572 | set_isub(PySetObject *so, PyObject *other) |
| 1573 | { |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1574 | if (!PyAnySet_Check(other)) |
| 1575 | Py_RETURN_NOTIMPLEMENTED; |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 1576 | if (set_difference_update_internal(so, other)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1577 | return NULL; |
| 1578 | Py_INCREF(so); |
| 1579 | return (PyObject *)so; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1580 | } |
| 1581 | |
| 1582 | static PyObject * |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1583 | set_symmetric_difference_update(PySetObject *so, PyObject *other) |
| 1584 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1585 | PySetObject *otherset; |
| 1586 | PyObject *key; |
| 1587 | Py_ssize_t pos = 0; |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1588 | Py_hash_t hash; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1589 | setentry *entry; |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1590 | int rv; |
Raymond Hettinger | c991db2 | 2005-08-11 07:58:45 +0000 | [diff] [blame] | 1591 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1592 | if ((PyObject *)so == other) |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1593 | return set_clear(so, NULL); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1594 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1595 | if (PyDict_CheckExact(other)) { |
| 1596 | PyObject *value; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1597 | while (_PyDict_Next(other, &pos, &key, &value, &hash)) { |
Raymond Hettinger | faf7b7f | 2010-09-03 10:00:50 +0000 | [diff] [blame] | 1598 | Py_INCREF(key); |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1599 | rv = set_discard_entry(so, key, hash); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1600 | if (rv < 0) { |
Raymond Hettinger | faf7b7f | 2010-09-03 10:00:50 +0000 | [diff] [blame] | 1601 | Py_DECREF(key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1602 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1603 | } |
Raymond Hettinger | faf7b7f | 2010-09-03 10:00:50 +0000 | [diff] [blame] | 1604 | if (rv == DISCARD_NOTFOUND) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1605 | if (set_add_entry(so, key, hash)) { |
Raymond Hettinger | faf7b7f | 2010-09-03 10:00:50 +0000 | [diff] [blame] | 1606 | Py_DECREF(key); |
| 1607 | return NULL; |
| 1608 | } |
| 1609 | } |
Georg Brandl | 2d44449 | 2010-09-03 10:52:55 +0000 | [diff] [blame] | 1610 | Py_DECREF(key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1611 | } |
| 1612 | Py_RETURN_NONE; |
| 1613 | } |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 1614 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1615 | if (PyAnySet_Check(other)) { |
| 1616 | Py_INCREF(other); |
| 1617 | otherset = (PySetObject *)other; |
| 1618 | } else { |
| 1619 | otherset = (PySetObject *)make_new_set_basetype(Py_TYPE(so), other); |
| 1620 | if (otherset == NULL) |
| 1621 | return NULL; |
| 1622 | } |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1623 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1624 | while (set_next(otherset, &pos, &entry)) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1625 | key = entry->key; |
| 1626 | hash = entry->hash; |
| 1627 | rv = set_discard_entry(so, key, hash); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1628 | if (rv < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1629 | Py_DECREF(otherset); |
| 1630 | return NULL; |
| 1631 | } |
| 1632 | if (rv == DISCARD_NOTFOUND) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1633 | if (set_add_entry(so, key, hash)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1634 | Py_DECREF(otherset); |
| 1635 | return NULL; |
| 1636 | } |
| 1637 | } |
| 1638 | } |
| 1639 | Py_DECREF(otherset); |
| 1640 | Py_RETURN_NONE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1641 | } |
| 1642 | |
| 1643 | PyDoc_STRVAR(symmetric_difference_update_doc, |
| 1644 | "Update a set with the symmetric difference of itself and another."); |
| 1645 | |
| 1646 | static PyObject * |
Raymond Hettinger | f5f41bf | 2003-11-24 02:57:33 +0000 | [diff] [blame] | 1647 | set_symmetric_difference(PySetObject *so, PyObject *other) |
| 1648 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1649 | PyObject *rv; |
| 1650 | PySetObject *otherset; |
Raymond Hettinger | f5f41bf | 2003-11-24 02:57:33 +0000 | [diff] [blame] | 1651 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1652 | otherset = (PySetObject *)make_new_set_basetype(Py_TYPE(so), other); |
| 1653 | if (otherset == NULL) |
| 1654 | return NULL; |
| 1655 | rv = set_symmetric_difference_update(otherset, (PyObject *)so); |
lekma | 491bbed | 2018-05-02 11:29:10 +0200 | [diff] [blame] | 1656 | if (rv == NULL) { |
| 1657 | Py_DECREF(otherset); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1658 | return NULL; |
lekma | 491bbed | 2018-05-02 11:29:10 +0200 | [diff] [blame] | 1659 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1660 | Py_DECREF(rv); |
| 1661 | return (PyObject *)otherset; |
Raymond Hettinger | f5f41bf | 2003-11-24 02:57:33 +0000 | [diff] [blame] | 1662 | } |
| 1663 | |
| 1664 | PyDoc_STRVAR(symmetric_difference_doc, |
| 1665 | "Return the symmetric difference of two sets as a new set.\n\ |
| 1666 | \n\ |
| 1667 | (i.e. all elements that are in exactly one of the sets.)"); |
| 1668 | |
| 1669 | static PyObject * |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1670 | set_xor(PySetObject *so, PyObject *other) |
| 1671 | { |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1672 | if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) |
| 1673 | Py_RETURN_NOTIMPLEMENTED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1674 | return set_symmetric_difference(so, other); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1675 | } |
| 1676 | |
| 1677 | static PyObject * |
| 1678 | set_ixor(PySetObject *so, PyObject *other) |
| 1679 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1680 | PyObject *result; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1681 | |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1682 | if (!PyAnySet_Check(other)) |
| 1683 | Py_RETURN_NOTIMPLEMENTED; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1684 | result = set_symmetric_difference_update(so, other); |
| 1685 | if (result == NULL) |
| 1686 | return NULL; |
| 1687 | Py_DECREF(result); |
| 1688 | Py_INCREF(so); |
| 1689 | return (PyObject *)so; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1690 | } |
| 1691 | |
| 1692 | static PyObject * |
| 1693 | set_issubset(PySetObject *so, PyObject *other) |
| 1694 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1695 | setentry *entry; |
| 1696 | Py_ssize_t pos = 0; |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1697 | int rv; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1698 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1699 | if (!PyAnySet_Check(other)) { |
| 1700 | PyObject *tmp, *result; |
| 1701 | tmp = make_new_set(&PySet_Type, other); |
| 1702 | if (tmp == NULL) |
| 1703 | return NULL; |
| 1704 | result = set_issubset(so, tmp); |
| 1705 | Py_DECREF(tmp); |
| 1706 | return result; |
| 1707 | } |
| 1708 | if (PySet_GET_SIZE(so) > PySet_GET_SIZE(other)) |
| 1709 | Py_RETURN_FALSE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1710 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1711 | while (set_next(so, &pos, &entry)) { |
Raymond Hettinger | 73799b1 | 2015-07-05 16:06:10 -0700 | [diff] [blame] | 1712 | rv = set_contains_entry((PySetObject *)other, entry->key, entry->hash); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1713 | if (rv < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1714 | return NULL; |
| 1715 | if (!rv) |
| 1716 | Py_RETURN_FALSE; |
| 1717 | } |
| 1718 | Py_RETURN_TRUE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1719 | } |
| 1720 | |
| 1721 | PyDoc_STRVAR(issubset_doc, "Report whether another set contains this set."); |
| 1722 | |
| 1723 | static PyObject * |
| 1724 | set_issuperset(PySetObject *so, PyObject *other) |
| 1725 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1726 | PyObject *tmp, *result; |
Raymond Hettinger | 3fbec70 | 2003-11-21 07:56:36 +0000 | [diff] [blame] | 1727 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1728 | if (!PyAnySet_Check(other)) { |
| 1729 | tmp = make_new_set(&PySet_Type, other); |
| 1730 | if (tmp == NULL) |
| 1731 | return NULL; |
| 1732 | result = set_issuperset(so, tmp); |
| 1733 | Py_DECREF(tmp); |
| 1734 | return result; |
| 1735 | } |
| 1736 | return set_issubset((PySetObject *)other, (PyObject *)so); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1737 | } |
| 1738 | |
| 1739 | PyDoc_STRVAR(issuperset_doc, "Report whether this set contains another set."); |
| 1740 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1741 | static PyObject * |
| 1742 | set_richcompare(PySetObject *v, PyObject *w, int op) |
| 1743 | { |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1744 | PyObject *r1; |
| 1745 | int r2; |
Raymond Hettinger | 9f1a679 | 2005-07-31 01:16:36 +0000 | [diff] [blame] | 1746 | |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1747 | if(!PyAnySet_Check(w)) |
| 1748 | Py_RETURN_NOTIMPLEMENTED; |
| 1749 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1750 | switch (op) { |
| 1751 | case Py_EQ: |
| 1752 | if (PySet_GET_SIZE(v) != PySet_GET_SIZE(w)) |
| 1753 | Py_RETURN_FALSE; |
| 1754 | if (v->hash != -1 && |
| 1755 | ((PySetObject *)w)->hash != -1 && |
| 1756 | v->hash != ((PySetObject *)w)->hash) |
| 1757 | Py_RETURN_FALSE; |
| 1758 | return set_issubset(v, w); |
| 1759 | case Py_NE: |
| 1760 | r1 = set_richcompare(v, w, Py_EQ); |
| 1761 | if (r1 == NULL) |
| 1762 | return NULL; |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1763 | r2 = PyObject_IsTrue(r1); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1764 | Py_DECREF(r1); |
Serhiy Storchaka | fa494fd | 2015-05-30 17:45:22 +0300 | [diff] [blame] | 1765 | if (r2 < 0) |
| 1766 | return NULL; |
| 1767 | return PyBool_FromLong(!r2); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1768 | case Py_LE: |
| 1769 | return set_issubset(v, w); |
| 1770 | case Py_GE: |
| 1771 | return set_issuperset(v, w); |
| 1772 | case Py_LT: |
| 1773 | if (PySet_GET_SIZE(v) >= PySet_GET_SIZE(w)) |
| 1774 | Py_RETURN_FALSE; |
| 1775 | return set_issubset(v, w); |
| 1776 | case Py_GT: |
| 1777 | if (PySet_GET_SIZE(v) <= PySet_GET_SIZE(w)) |
| 1778 | Py_RETURN_FALSE; |
| 1779 | return set_issuperset(v, w); |
| 1780 | } |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 1781 | Py_RETURN_NOTIMPLEMENTED; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1782 | } |
| 1783 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1784 | static PyObject * |
Raymond Hettinger | 06d8cf8 | 2005-07-31 15:36:06 +0000 | [diff] [blame] | 1785 | set_add(PySetObject *so, PyObject *key) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1786 | { |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 1787 | if (set_add_key(so, key)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1788 | return NULL; |
| 1789 | Py_RETURN_NONE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1790 | } |
| 1791 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1792 | PyDoc_STRVAR(add_doc, |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1793 | "Add an element to a set.\n\ |
| 1794 | \n\ |
| 1795 | This has no effect if the element is already present."); |
| 1796 | |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 1797 | static int |
| 1798 | set_contains(PySetObject *so, PyObject *key) |
| 1799 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1800 | PyObject *tmpkey; |
| 1801 | int rv; |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 1802 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1803 | rv = set_contains_key(so, key); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1804 | if (rv < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1805 | if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) |
| 1806 | return -1; |
| 1807 | PyErr_Clear(); |
Raymond Hettinger | 38bf2cc | 2010-08-06 09:52:17 +0000 | [diff] [blame] | 1808 | tmpkey = make_new_set(&PyFrozenSet_Type, key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1809 | if (tmpkey == NULL) |
| 1810 | return -1; |
Petri Lehtinen | 5acc27e | 2011-10-30 13:56:41 +0200 | [diff] [blame] | 1811 | rv = set_contains_key(so, tmpkey); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1812 | Py_DECREF(tmpkey); |
| 1813 | } |
| 1814 | return rv; |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 1815 | } |
| 1816 | |
| 1817 | static PyObject * |
| 1818 | set_direct_contains(PySetObject *so, PyObject *key) |
| 1819 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1820 | long result; |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 1821 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1822 | result = set_contains(so, key); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1823 | if (result < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1824 | return NULL; |
| 1825 | return PyBool_FromLong(result); |
Raymond Hettinger | ce8185e | 2005-08-13 09:28:48 +0000 | [diff] [blame] | 1826 | } |
| 1827 | |
| 1828 | PyDoc_STRVAR(contains_doc, "x.__contains__(y) <==> y in x."); |
| 1829 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1830 | static PyObject * |
Raymond Hettinger | 06d8cf8 | 2005-07-31 15:36:06 +0000 | [diff] [blame] | 1831 | set_remove(PySetObject *so, PyObject *key) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1832 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1833 | PyObject *tmpkey; |
| 1834 | int rv; |
Raymond Hettinger | bfd334a | 2003-11-22 03:55:23 +0000 | [diff] [blame] | 1835 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1836 | rv = set_discard_key(so, key); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1837 | if (rv < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1838 | if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) |
| 1839 | return NULL; |
| 1840 | PyErr_Clear(); |
Raymond Hettinger | 38bf2cc | 2010-08-06 09:52:17 +0000 | [diff] [blame] | 1841 | tmpkey = make_new_set(&PyFrozenSet_Type, key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1842 | if (tmpkey == NULL) |
| 1843 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1844 | rv = set_discard_key(so, tmpkey); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1845 | Py_DECREF(tmpkey); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1846 | if (rv < 0) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1847 | return NULL; |
| 1848 | } |
Benjamin Peterson | f10a79a | 2008-10-11 00:49:57 +0000 | [diff] [blame] | 1849 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1850 | if (rv == DISCARD_NOTFOUND) { |
Raymond Hettinger | 69492da | 2013-09-02 15:59:26 -0700 | [diff] [blame] | 1851 | _PyErr_SetKeyError(key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1852 | return NULL; |
| 1853 | } |
| 1854 | Py_RETURN_NONE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1855 | } |
| 1856 | |
| 1857 | PyDoc_STRVAR(remove_doc, |
| 1858 | "Remove an element from a set; it must be a member.\n\ |
| 1859 | \n\ |
| 1860 | If the element is not a member, raise a KeyError."); |
| 1861 | |
| 1862 | static PyObject * |
Raymond Hettinger | 06d8cf8 | 2005-07-31 15:36:06 +0000 | [diff] [blame] | 1863 | set_discard(PySetObject *so, PyObject *key) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1864 | { |
Benjamin Peterson | 2b50a01 | 2011-10-30 14:24:44 -0400 | [diff] [blame] | 1865 | PyObject *tmpkey; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1866 | int rv; |
Raymond Hettinger | 0deab62 | 2003-12-13 18:53:18 +0000 | [diff] [blame] | 1867 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1868 | rv = set_discard_key(so, key); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1869 | if (rv < 0) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1870 | if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError)) |
| 1871 | return NULL; |
| 1872 | PyErr_Clear(); |
Raymond Hettinger | 38bf2cc | 2010-08-06 09:52:17 +0000 | [diff] [blame] | 1873 | tmpkey = make_new_set(&PyFrozenSet_Type, key); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1874 | if (tmpkey == NULL) |
| 1875 | return NULL; |
Petri Lehtinen | e0aa803 | 2011-10-30 14:31:27 +0200 | [diff] [blame] | 1876 | rv = set_discard_key(so, tmpkey); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1877 | Py_DECREF(tmpkey); |
Raymond Hettinger | b322326 | 2015-07-03 23:37:16 -0700 | [diff] [blame] | 1878 | if (rv < 0) |
Petri Lehtinen | e0aa803 | 2011-10-30 14:31:27 +0200 | [diff] [blame] | 1879 | return NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1880 | } |
| 1881 | Py_RETURN_NONE; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1882 | } |
| 1883 | |
| 1884 | PyDoc_STRVAR(discard_doc, |
| 1885 | "Remove an element from a set if it is a member.\n\ |
| 1886 | \n\ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1887 | If the element is not a member, do nothing."); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1888 | |
| 1889 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1890 | set_reduce(PySetObject *so, PyObject *Py_UNUSED(ignored)) |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1891 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1892 | PyObject *keys=NULL, *args=NULL, *result=NULL, *dict=NULL; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 1893 | _Py_IDENTIFIER(__dict__); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1894 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1895 | keys = PySequence_List((PyObject *)so); |
| 1896 | if (keys == NULL) |
| 1897 | goto done; |
| 1898 | args = PyTuple_Pack(1, keys); |
| 1899 | if (args == NULL) |
| 1900 | goto done; |
Serhiy Storchaka | 41c57b3 | 2019-09-01 12:03:39 +0300 | [diff] [blame] | 1901 | if (_PyObject_LookupAttrId((PyObject *)so, &PyId___dict__, &dict) < 0) { |
| 1902 | goto done; |
| 1903 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1904 | if (dict == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1905 | dict = Py_None; |
| 1906 | Py_INCREF(dict); |
| 1907 | } |
| 1908 | result = PyTuple_Pack(3, Py_TYPE(so), args, dict); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1909 | done: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1910 | Py_XDECREF(args); |
| 1911 | Py_XDECREF(keys); |
| 1912 | Py_XDECREF(dict); |
| 1913 | return result; |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1914 | } |
| 1915 | |
Robert Schuppenies | fbe94c5 | 2008-07-14 10:13:31 +0000 | [diff] [blame] | 1916 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1917 | set_sizeof(PySetObject *so, PyObject *Py_UNUSED(ignored)) |
Robert Schuppenies | fbe94c5 | 2008-07-14 10:13:31 +0000 | [diff] [blame] | 1918 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1919 | Py_ssize_t res; |
Robert Schuppenies | fbe94c5 | 2008-07-14 10:13:31 +0000 | [diff] [blame] | 1920 | |
Serhiy Storchaka | 5c4064e | 2015-12-19 20:05:25 +0200 | [diff] [blame] | 1921 | res = _PyObject_SIZE(Py_TYPE(so)); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1922 | if (so->table != so->smalltable) |
| 1923 | res = res + (so->mask + 1) * sizeof(setentry); |
| 1924 | return PyLong_FromSsize_t(res); |
Robert Schuppenies | fbe94c5 | 2008-07-14 10:13:31 +0000 | [diff] [blame] | 1925 | } |
| 1926 | |
| 1927 | PyDoc_STRVAR(sizeof_doc, "S.__sizeof__() -> size of S in memory, in bytes"); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 1928 | static int |
| 1929 | set_init(PySetObject *self, PyObject *args, PyObject *kwds) |
| 1930 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1931 | PyObject *iterable = NULL; |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 1932 | |
Serhiy Storchaka | 6cca5c8 | 2017-06-08 14:41:19 +0300 | [diff] [blame] | 1933 | if (!_PyArg_NoKeywords("set", kwds)) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1934 | return -1; |
| 1935 | if (!PyArg_UnpackTuple(args, Py_TYPE(self)->tp_name, 0, 1, &iterable)) |
| 1936 | return -1; |
Raymond Hettinger | b72e21b | 2016-03-25 02:29:59 -0700 | [diff] [blame] | 1937 | if (self->fill) |
| 1938 | set_clear_internal(self); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1939 | self->hash = -1; |
| 1940 | if (iterable == NULL) |
| 1941 | return 0; |
| 1942 | return set_update_internal(self, iterable); |
Raymond Hettinger | 50a4bb3 | 2003-11-17 16:42:33 +0000 | [diff] [blame] | 1943 | } |
| 1944 | |
Dong-hee Na | 6ff79f65 | 2020-03-17 02:17:38 +0900 | [diff] [blame] | 1945 | static PyObject* |
| 1946 | set_vectorcall(PyObject *type, PyObject * const*args, |
| 1947 | size_t nargsf, PyObject *kwnames) |
| 1948 | { |
| 1949 | assert(PyType_Check(type)); |
| 1950 | |
| 1951 | if (!_PyArg_NoKwnames("set", kwnames)) { |
| 1952 | return NULL; |
| 1953 | } |
| 1954 | |
| 1955 | Py_ssize_t nargs = PyVectorcall_NARGS(nargsf); |
| 1956 | if (!_PyArg_CheckPositional("set", nargs, 0, 1)) { |
| 1957 | return NULL; |
| 1958 | } |
| 1959 | |
| 1960 | if (nargs) { |
| 1961 | return make_new_set((PyTypeObject *)type, args[0]); |
| 1962 | } |
| 1963 | |
| 1964 | return make_new_set((PyTypeObject *)type, NULL); |
| 1965 | } |
| 1966 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1967 | static PySequenceMethods set_as_sequence = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1968 | set_len, /* sq_length */ |
| 1969 | 0, /* sq_concat */ |
| 1970 | 0, /* sq_repeat */ |
| 1971 | 0, /* sq_item */ |
| 1972 | 0, /* sq_slice */ |
| 1973 | 0, /* sq_ass_item */ |
| 1974 | 0, /* sq_ass_slice */ |
| 1975 | (objobjproc)set_contains, /* sq_contains */ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1976 | }; |
| 1977 | |
| 1978 | /* set object ********************************************************/ |
| 1979 | |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 1980 | #ifdef Py_DEBUG |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 1981 | static PyObject *test_c_api(PySetObject *so, PyObject *Py_UNUSED(ignored)); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 1982 | |
| 1983 | PyDoc_STRVAR(test_c_api_doc, "Exercises C API. Returns True.\n\ |
| 1984 | All is well if assertions don't fail."); |
| 1985 | #endif |
| 1986 | |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 1987 | static PyMethodDef set_methods[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1988 | {"add", (PyCFunction)set_add, METH_O, |
| 1989 | add_doc}, |
| 1990 | {"clear", (PyCFunction)set_clear, METH_NOARGS, |
| 1991 | clear_doc}, |
| 1992 | {"__contains__",(PyCFunction)set_direct_contains, METH_O | METH_COEXIST, |
| 1993 | contains_doc}, |
| 1994 | {"copy", (PyCFunction)set_copy, METH_NOARGS, |
| 1995 | copy_doc}, |
| 1996 | {"discard", (PyCFunction)set_discard, METH_O, |
| 1997 | discard_doc}, |
| 1998 | {"difference", (PyCFunction)set_difference_multi, METH_VARARGS, |
| 1999 | difference_doc}, |
| 2000 | {"difference_update", (PyCFunction)set_difference_update, METH_VARARGS, |
| 2001 | difference_update_doc}, |
| 2002 | {"intersection",(PyCFunction)set_intersection_multi, METH_VARARGS, |
| 2003 | intersection_doc}, |
| 2004 | {"intersection_update",(PyCFunction)set_intersection_update_multi, METH_VARARGS, |
| 2005 | intersection_update_doc}, |
| 2006 | {"isdisjoint", (PyCFunction)set_isdisjoint, METH_O, |
| 2007 | isdisjoint_doc}, |
| 2008 | {"issubset", (PyCFunction)set_issubset, METH_O, |
| 2009 | issubset_doc}, |
| 2010 | {"issuperset", (PyCFunction)set_issuperset, METH_O, |
| 2011 | issuperset_doc}, |
| 2012 | {"pop", (PyCFunction)set_pop, METH_NOARGS, |
| 2013 | pop_doc}, |
| 2014 | {"__reduce__", (PyCFunction)set_reduce, METH_NOARGS, |
| 2015 | reduce_doc}, |
| 2016 | {"remove", (PyCFunction)set_remove, METH_O, |
| 2017 | remove_doc}, |
| 2018 | {"__sizeof__", (PyCFunction)set_sizeof, METH_NOARGS, |
| 2019 | sizeof_doc}, |
| 2020 | {"symmetric_difference",(PyCFunction)set_symmetric_difference, METH_O, |
| 2021 | symmetric_difference_doc}, |
| 2022 | {"symmetric_difference_update",(PyCFunction)set_symmetric_difference_update, METH_O, |
| 2023 | symmetric_difference_update_doc}, |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2024 | #ifdef Py_DEBUG |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2025 | {"test_c_api", (PyCFunction)test_c_api, METH_NOARGS, |
| 2026 | test_c_api_doc}, |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2027 | #endif |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2028 | {"union", (PyCFunction)set_union, METH_VARARGS, |
| 2029 | union_doc}, |
| 2030 | {"update", (PyCFunction)set_update, METH_VARARGS, |
| 2031 | update_doc}, |
Guido van Rossum | 48b069a | 2020-04-07 09:50:06 -0700 | [diff] [blame] | 2032 | {"__class_getitem__", (PyCFunction)Py_GenericAlias, METH_O|METH_CLASS, PyDoc_STR("See PEP 585")}, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2033 | {NULL, NULL} /* sentinel */ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2034 | }; |
| 2035 | |
| 2036 | static PyNumberMethods set_as_number = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2037 | 0, /*nb_add*/ |
| 2038 | (binaryfunc)set_sub, /*nb_subtract*/ |
| 2039 | 0, /*nb_multiply*/ |
| 2040 | 0, /*nb_remainder*/ |
| 2041 | 0, /*nb_divmod*/ |
| 2042 | 0, /*nb_power*/ |
| 2043 | 0, /*nb_negative*/ |
| 2044 | 0, /*nb_positive*/ |
| 2045 | 0, /*nb_absolute*/ |
| 2046 | 0, /*nb_bool*/ |
| 2047 | 0, /*nb_invert*/ |
| 2048 | 0, /*nb_lshift*/ |
| 2049 | 0, /*nb_rshift*/ |
| 2050 | (binaryfunc)set_and, /*nb_and*/ |
| 2051 | (binaryfunc)set_xor, /*nb_xor*/ |
| 2052 | (binaryfunc)set_or, /*nb_or*/ |
| 2053 | 0, /*nb_int*/ |
| 2054 | 0, /*nb_reserved*/ |
| 2055 | 0, /*nb_float*/ |
| 2056 | 0, /*nb_inplace_add*/ |
| 2057 | (binaryfunc)set_isub, /*nb_inplace_subtract*/ |
| 2058 | 0, /*nb_inplace_multiply*/ |
| 2059 | 0, /*nb_inplace_remainder*/ |
| 2060 | 0, /*nb_inplace_power*/ |
| 2061 | 0, /*nb_inplace_lshift*/ |
| 2062 | 0, /*nb_inplace_rshift*/ |
| 2063 | (binaryfunc)set_iand, /*nb_inplace_and*/ |
| 2064 | (binaryfunc)set_ixor, /*nb_inplace_xor*/ |
| 2065 | (binaryfunc)set_ior, /*nb_inplace_or*/ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2066 | }; |
| 2067 | |
| 2068 | PyDoc_STRVAR(set_doc, |
Ezio Melotti | 7f807b7 | 2010-03-01 04:08:34 +0000 | [diff] [blame] | 2069 | "set() -> new empty set object\n\ |
| 2070 | set(iterable) -> new set object\n\ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2071 | \n\ |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 2072 | Build an unordered collection of unique elements."); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2073 | |
| 2074 | PyTypeObject PySet_Type = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2075 | PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| 2076 | "set", /* tp_name */ |
| 2077 | sizeof(PySetObject), /* tp_basicsize */ |
| 2078 | 0, /* tp_itemsize */ |
| 2079 | /* methods */ |
| 2080 | (destructor)set_dealloc, /* tp_dealloc */ |
Jeroen Demeyer | 530f506 | 2019-05-31 04:13:39 +0200 | [diff] [blame] | 2081 | 0, /* tp_vectorcall_offset */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2082 | 0, /* tp_getattr */ |
| 2083 | 0, /* tp_setattr */ |
Jeroen Demeyer | 530f506 | 2019-05-31 04:13:39 +0200 | [diff] [blame] | 2084 | 0, /* tp_as_async */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2085 | (reprfunc)set_repr, /* tp_repr */ |
| 2086 | &set_as_number, /* tp_as_number */ |
| 2087 | &set_as_sequence, /* tp_as_sequence */ |
| 2088 | 0, /* tp_as_mapping */ |
Georg Brandl | 00da4e0 | 2010-10-18 07:32:48 +0000 | [diff] [blame] | 2089 | PyObject_HashNotImplemented, /* tp_hash */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2090 | 0, /* tp_call */ |
| 2091 | 0, /* tp_str */ |
| 2092 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 2093 | 0, /* tp_setattro */ |
| 2094 | 0, /* tp_as_buffer */ |
| 2095 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | |
| 2096 | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| 2097 | set_doc, /* tp_doc */ |
| 2098 | (traverseproc)set_traverse, /* tp_traverse */ |
| 2099 | (inquiry)set_clear_internal, /* tp_clear */ |
| 2100 | (richcmpfunc)set_richcompare, /* tp_richcompare */ |
Georg Brandl | 00da4e0 | 2010-10-18 07:32:48 +0000 | [diff] [blame] | 2101 | offsetof(PySetObject, weakreflist), /* tp_weaklistoffset */ |
| 2102 | (getiterfunc)set_iter, /* tp_iter */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2103 | 0, /* tp_iternext */ |
| 2104 | set_methods, /* tp_methods */ |
| 2105 | 0, /* tp_members */ |
| 2106 | 0, /* tp_getset */ |
| 2107 | 0, /* tp_base */ |
| 2108 | 0, /* tp_dict */ |
| 2109 | 0, /* tp_descr_get */ |
| 2110 | 0, /* tp_descr_set */ |
| 2111 | 0, /* tp_dictoffset */ |
| 2112 | (initproc)set_init, /* tp_init */ |
| 2113 | PyType_GenericAlloc, /* tp_alloc */ |
| 2114 | set_new, /* tp_new */ |
| 2115 | PyObject_GC_Del, /* tp_free */ |
Dong-hee Na | 6ff79f65 | 2020-03-17 02:17:38 +0900 | [diff] [blame] | 2116 | .tp_vectorcall = set_vectorcall, |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2117 | }; |
| 2118 | |
| 2119 | /* frozenset object ********************************************************/ |
| 2120 | |
| 2121 | |
| 2122 | static PyMethodDef frozenset_methods[] = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2123 | {"__contains__",(PyCFunction)set_direct_contains, METH_O | METH_COEXIST, |
| 2124 | contains_doc}, |
| 2125 | {"copy", (PyCFunction)frozenset_copy, METH_NOARGS, |
| 2126 | copy_doc}, |
| 2127 | {"difference", (PyCFunction)set_difference_multi, METH_VARARGS, |
| 2128 | difference_doc}, |
Raymond Hettinger | 5d2385f | 2015-07-08 11:52:27 -0700 | [diff] [blame] | 2129 | {"intersection", (PyCFunction)set_intersection_multi, METH_VARARGS, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2130 | intersection_doc}, |
| 2131 | {"isdisjoint", (PyCFunction)set_isdisjoint, METH_O, |
| 2132 | isdisjoint_doc}, |
| 2133 | {"issubset", (PyCFunction)set_issubset, METH_O, |
| 2134 | issubset_doc}, |
| 2135 | {"issuperset", (PyCFunction)set_issuperset, METH_O, |
| 2136 | issuperset_doc}, |
| 2137 | {"__reduce__", (PyCFunction)set_reduce, METH_NOARGS, |
| 2138 | reduce_doc}, |
| 2139 | {"__sizeof__", (PyCFunction)set_sizeof, METH_NOARGS, |
| 2140 | sizeof_doc}, |
| 2141 | {"symmetric_difference",(PyCFunction)set_symmetric_difference, METH_O, |
| 2142 | symmetric_difference_doc}, |
| 2143 | {"union", (PyCFunction)set_union, METH_VARARGS, |
| 2144 | union_doc}, |
Guido van Rossum | 48b069a | 2020-04-07 09:50:06 -0700 | [diff] [blame] | 2145 | {"__class_getitem__", (PyCFunction)Py_GenericAlias, METH_O|METH_CLASS, PyDoc_STR("See PEP 585")}, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2146 | {NULL, NULL} /* sentinel */ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2147 | }; |
| 2148 | |
| 2149 | static PyNumberMethods frozenset_as_number = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2150 | 0, /*nb_add*/ |
| 2151 | (binaryfunc)set_sub, /*nb_subtract*/ |
| 2152 | 0, /*nb_multiply*/ |
| 2153 | 0, /*nb_remainder*/ |
| 2154 | 0, /*nb_divmod*/ |
| 2155 | 0, /*nb_power*/ |
| 2156 | 0, /*nb_negative*/ |
| 2157 | 0, /*nb_positive*/ |
| 2158 | 0, /*nb_absolute*/ |
| 2159 | 0, /*nb_bool*/ |
| 2160 | 0, /*nb_invert*/ |
| 2161 | 0, /*nb_lshift*/ |
| 2162 | 0, /*nb_rshift*/ |
| 2163 | (binaryfunc)set_and, /*nb_and*/ |
| 2164 | (binaryfunc)set_xor, /*nb_xor*/ |
| 2165 | (binaryfunc)set_or, /*nb_or*/ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2166 | }; |
| 2167 | |
| 2168 | PyDoc_STRVAR(frozenset_doc, |
Ezio Melotti | 7f807b7 | 2010-03-01 04:08:34 +0000 | [diff] [blame] | 2169 | "frozenset() -> empty frozenset object\n\ |
| 2170 | frozenset(iterable) -> frozenset object\n\ |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2171 | \n\ |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 2172 | Build an immutable unordered collection of unique elements."); |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2173 | |
| 2174 | PyTypeObject PyFrozenSet_Type = { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2175 | PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| 2176 | "frozenset", /* tp_name */ |
| 2177 | sizeof(PySetObject), /* tp_basicsize */ |
| 2178 | 0, /* tp_itemsize */ |
| 2179 | /* methods */ |
| 2180 | (destructor)set_dealloc, /* tp_dealloc */ |
Jeroen Demeyer | 530f506 | 2019-05-31 04:13:39 +0200 | [diff] [blame] | 2181 | 0, /* tp_vectorcall_offset */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2182 | 0, /* tp_getattr */ |
| 2183 | 0, /* tp_setattr */ |
Jeroen Demeyer | 530f506 | 2019-05-31 04:13:39 +0200 | [diff] [blame] | 2184 | 0, /* tp_as_async */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2185 | (reprfunc)set_repr, /* tp_repr */ |
| 2186 | &frozenset_as_number, /* tp_as_number */ |
| 2187 | &set_as_sequence, /* tp_as_sequence */ |
| 2188 | 0, /* tp_as_mapping */ |
| 2189 | frozenset_hash, /* tp_hash */ |
| 2190 | 0, /* tp_call */ |
| 2191 | 0, /* tp_str */ |
| 2192 | PyObject_GenericGetAttr, /* tp_getattro */ |
| 2193 | 0, /* tp_setattro */ |
| 2194 | 0, /* tp_as_buffer */ |
| 2195 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | |
| 2196 | Py_TPFLAGS_BASETYPE, /* tp_flags */ |
| 2197 | frozenset_doc, /* tp_doc */ |
| 2198 | (traverseproc)set_traverse, /* tp_traverse */ |
| 2199 | (inquiry)set_clear_internal, /* tp_clear */ |
| 2200 | (richcmpfunc)set_richcompare, /* tp_richcompare */ |
Raymond Hettinger | 5d2385f | 2015-07-08 11:52:27 -0700 | [diff] [blame] | 2201 | offsetof(PySetObject, weakreflist), /* tp_weaklistoffset */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2202 | (getiterfunc)set_iter, /* tp_iter */ |
| 2203 | 0, /* tp_iternext */ |
| 2204 | frozenset_methods, /* tp_methods */ |
| 2205 | 0, /* tp_members */ |
| 2206 | 0, /* tp_getset */ |
| 2207 | 0, /* tp_base */ |
| 2208 | 0, /* tp_dict */ |
| 2209 | 0, /* tp_descr_get */ |
| 2210 | 0, /* tp_descr_set */ |
| 2211 | 0, /* tp_dictoffset */ |
| 2212 | 0, /* tp_init */ |
| 2213 | PyType_GenericAlloc, /* tp_alloc */ |
| 2214 | frozenset_new, /* tp_new */ |
| 2215 | PyObject_GC_Del, /* tp_free */ |
Dong-hee Na | 1c60567 | 2020-03-19 02:30:50 +0900 | [diff] [blame] | 2216 | .tp_vectorcall = frozenset_vectorcall, |
Raymond Hettinger | a690a99 | 2003-11-16 16:17:49 +0000 | [diff] [blame] | 2217 | }; |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2218 | |
| 2219 | |
| 2220 | /***** C API functions *************************************************/ |
| 2221 | |
| 2222 | PyObject * |
| 2223 | PySet_New(PyObject *iterable) |
| 2224 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2225 | return make_new_set(&PySet_Type, iterable); |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2226 | } |
| 2227 | |
| 2228 | PyObject * |
| 2229 | PyFrozenSet_New(PyObject *iterable) |
| 2230 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2231 | return make_new_set(&PyFrozenSet_Type, iterable); |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2232 | } |
| 2233 | |
Neal Norwitz | 8c49c82 | 2006-03-04 18:41:19 +0000 | [diff] [blame] | 2234 | Py_ssize_t |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2235 | PySet_Size(PyObject *anyset) |
| 2236 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2237 | if (!PyAnySet_Check(anyset)) { |
| 2238 | PyErr_BadInternalCall(); |
| 2239 | return -1; |
| 2240 | } |
| 2241 | return PySet_GET_SIZE(anyset); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2242 | } |
| 2243 | |
| 2244 | int |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2245 | PySet_Clear(PyObject *set) |
| 2246 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2247 | if (!PySet_Check(set)) { |
| 2248 | PyErr_BadInternalCall(); |
| 2249 | return -1; |
| 2250 | } |
| 2251 | return set_clear_internal((PySetObject *)set); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2252 | } |
| 2253 | |
| 2254 | int |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2255 | PySet_Contains(PyObject *anyset, PyObject *key) |
| 2256 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2257 | if (!PyAnySet_Check(anyset)) { |
| 2258 | PyErr_BadInternalCall(); |
| 2259 | return -1; |
| 2260 | } |
| 2261 | return set_contains_key((PySetObject *)anyset, key); |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2262 | } |
| 2263 | |
| 2264 | int |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2265 | PySet_Discard(PyObject *set, PyObject *key) |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2266 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2267 | if (!PySet_Check(set)) { |
| 2268 | PyErr_BadInternalCall(); |
| 2269 | return -1; |
| 2270 | } |
| 2271 | return set_discard_key((PySetObject *)set, key); |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2272 | } |
| 2273 | |
| 2274 | int |
Christian Heimes | fd66e51 | 2008-01-29 12:18:50 +0000 | [diff] [blame] | 2275 | PySet_Add(PyObject *anyset, PyObject *key) |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2276 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2277 | if (!PySet_Check(anyset) && |
| 2278 | (!PyFrozenSet_Check(anyset) || Py_REFCNT(anyset) != 1)) { |
| 2279 | PyErr_BadInternalCall(); |
| 2280 | return -1; |
| 2281 | } |
| 2282 | return set_add_key((PySetObject *)anyset, key); |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2283 | } |
| 2284 | |
Raymond Hettinger | 3625af5 | 2016-03-27 01:15:07 -0700 | [diff] [blame] | 2285 | int |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 2286 | _PySet_NextEntry(PyObject *set, Py_ssize_t *pos, PyObject **key, Py_hash_t *hash) |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 2287 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2288 | setentry *entry; |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 2289 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2290 | if (!PyAnySet_Check(set)) { |
| 2291 | PyErr_BadInternalCall(); |
| 2292 | return -1; |
| 2293 | } |
| 2294 | if (set_next((PySetObject *)set, pos, &entry) == 0) |
| 2295 | return 0; |
| 2296 | *key = entry->key; |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 2297 | *hash = entry->hash; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2298 | return 1; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2299 | } |
| 2300 | |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2301 | PyObject * |
| 2302 | PySet_Pop(PyObject *set) |
| 2303 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2304 | if (!PySet_Check(set)) { |
| 2305 | PyErr_BadInternalCall(); |
| 2306 | return NULL; |
| 2307 | } |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 2308 | return set_pop((PySetObject *)set, NULL); |
Raymond Hettinger | beb3101 | 2005-08-16 03:47:52 +0000 | [diff] [blame] | 2309 | } |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2310 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2311 | int |
| 2312 | _PySet_Update(PyObject *set, PyObject *iterable) |
| 2313 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2314 | if (!PySet_Check(set)) { |
| 2315 | PyErr_BadInternalCall(); |
| 2316 | return -1; |
| 2317 | } |
| 2318 | return set_update_internal((PySetObject *)set, iterable); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2319 | } |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2320 | |
Raymond Hettinger | e259f13 | 2013-12-15 11:56:14 -0800 | [diff] [blame] | 2321 | /* Exported for the gdb plugin's benefit. */ |
| 2322 | PyObject *_PySet_Dummy = dummy; |
| 2323 | |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2324 | #ifdef Py_DEBUG |
| 2325 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2326 | /* Test code to be called with any three element set. |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2327 | Returns True and original set is restored. */ |
| 2328 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2329 | #define assertRaises(call_return_value, exception) \ |
| 2330 | do { \ |
| 2331 | assert(call_return_value); \ |
| 2332 | assert(PyErr_ExceptionMatches(exception)); \ |
| 2333 | PyErr_Clear(); \ |
| 2334 | } while(0) |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2335 | |
| 2336 | static PyObject * |
Siddhesh Poyarekar | 55edd0c | 2018-04-30 00:29:33 +0530 | [diff] [blame] | 2337 | test_c_api(PySetObject *so, PyObject *Py_UNUSED(ignored)) |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2338 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2339 | Py_ssize_t count; |
Serhiy Storchaka | 85b0f5b | 2016-11-20 10:16:47 +0200 | [diff] [blame] | 2340 | const char *s; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2341 | Py_ssize_t i; |
Raymond Hettinger | 583cd03 | 2013-09-07 22:06:35 -0700 | [diff] [blame] | 2342 | PyObject *elem=NULL, *dup=NULL, *t, *f, *dup2, *x=NULL; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2343 | PyObject *ob = (PyObject *)so; |
Benjamin Peterson | 8f67d08 | 2010-10-17 20:54:53 +0000 | [diff] [blame] | 2344 | Py_hash_t hash; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2345 | PyObject *str; |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2346 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2347 | /* Verify preconditions */ |
| 2348 | assert(PyAnySet_Check(ob)); |
| 2349 | assert(PyAnySet_CheckExact(ob)); |
| 2350 | assert(!PyFrozenSet_CheckExact(ob)); |
Victor Stinner | 08b36bd | 2010-03-13 00:19:17 +0000 | [diff] [blame] | 2351 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2352 | /* so.clear(); so |= set("abc"); */ |
| 2353 | str = PyUnicode_FromString("abc"); |
| 2354 | if (str == NULL) |
| 2355 | return NULL; |
| 2356 | set_clear_internal(so); |
Raymond Hettinger | 5af9e13 | 2015-05-13 01:44:36 -0700 | [diff] [blame] | 2357 | if (set_update_internal(so, str)) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2358 | Py_DECREF(str); |
| 2359 | return NULL; |
| 2360 | } |
| 2361 | Py_DECREF(str); |
Victor Stinner | 08b36bd | 2010-03-13 00:19:17 +0000 | [diff] [blame] | 2362 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2363 | /* Exercise type/size checks */ |
| 2364 | assert(PySet_Size(ob) == 3); |
| 2365 | assert(PySet_GET_SIZE(ob) == 3); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2366 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2367 | /* Raise TypeError for non-iterable constructor arguments */ |
| 2368 | assertRaises(PySet_New(Py_None) == NULL, PyExc_TypeError); |
| 2369 | assertRaises(PyFrozenSet_New(Py_None) == NULL, PyExc_TypeError); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2370 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2371 | /* Raise TypeError for unhashable key */ |
| 2372 | dup = PySet_New(ob); |
| 2373 | assertRaises(PySet_Discard(ob, dup) == -1, PyExc_TypeError); |
| 2374 | assertRaises(PySet_Contains(ob, dup) == -1, PyExc_TypeError); |
| 2375 | assertRaises(PySet_Add(ob, dup) == -1, PyExc_TypeError); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2376 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2377 | /* Exercise successful pop, contains, add, and discard */ |
| 2378 | elem = PySet_Pop(ob); |
| 2379 | assert(PySet_Contains(ob, elem) == 0); |
| 2380 | assert(PySet_GET_SIZE(ob) == 2); |
| 2381 | assert(PySet_Add(ob, elem) == 0); |
| 2382 | assert(PySet_Contains(ob, elem) == 1); |
| 2383 | assert(PySet_GET_SIZE(ob) == 3); |
| 2384 | assert(PySet_Discard(ob, elem) == 1); |
| 2385 | assert(PySet_GET_SIZE(ob) == 2); |
| 2386 | assert(PySet_Discard(ob, elem) == 0); |
| 2387 | assert(PySet_GET_SIZE(ob) == 2); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2388 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2389 | /* Exercise clear */ |
| 2390 | dup2 = PySet_New(dup); |
| 2391 | assert(PySet_Clear(dup2) == 0); |
| 2392 | assert(PySet_Size(dup2) == 0); |
| 2393 | Py_DECREF(dup2); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2394 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2395 | /* Raise SystemError on clear or update of frozen set */ |
| 2396 | f = PyFrozenSet_New(dup); |
| 2397 | assertRaises(PySet_Clear(f) == -1, PyExc_SystemError); |
| 2398 | assertRaises(_PySet_Update(f, dup) == -1, PyExc_SystemError); |
| 2399 | assert(PySet_Add(f, elem) == 0); |
| 2400 | Py_INCREF(f); |
| 2401 | assertRaises(PySet_Add(f, elem) == -1, PyExc_SystemError); |
| 2402 | Py_DECREF(f); |
| 2403 | Py_DECREF(f); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2404 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2405 | /* Exercise direct iteration */ |
| 2406 | i = 0, count = 0; |
| 2407 | while (_PySet_NextEntry((PyObject *)dup, &i, &x, &hash)) { |
Serhiy Storchaka | 0651583 | 2016-11-20 09:13:07 +0200 | [diff] [blame] | 2408 | s = PyUnicode_AsUTF8(x); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2409 | assert(s && (s[0] == 'a' || s[0] == 'b' || s[0] == 'c')); |
| 2410 | count++; |
| 2411 | } |
| 2412 | assert(count == 3); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2413 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2414 | /* Exercise updates */ |
| 2415 | dup2 = PySet_New(NULL); |
| 2416 | assert(_PySet_Update(dup2, dup) == 0); |
| 2417 | assert(PySet_Size(dup2) == 3); |
| 2418 | assert(_PySet_Update(dup2, dup) == 0); |
| 2419 | assert(PySet_Size(dup2) == 3); |
| 2420 | Py_DECREF(dup2); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2421 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2422 | /* Raise SystemError when self argument is not a set or frozenset. */ |
| 2423 | t = PyTuple_New(0); |
| 2424 | assertRaises(PySet_Size(t) == -1, PyExc_SystemError); |
| 2425 | assertRaises(PySet_Contains(t, elem) == -1, PyExc_SystemError); |
| 2426 | Py_DECREF(t); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2427 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2428 | /* Raise SystemError when self argument is not a set. */ |
| 2429 | f = PyFrozenSet_New(dup); |
| 2430 | assert(PySet_Size(f) == 3); |
| 2431 | assert(PyFrozenSet_CheckExact(f)); |
| 2432 | assertRaises(PySet_Discard(f, elem) == -1, PyExc_SystemError); |
| 2433 | assertRaises(PySet_Pop(f) == NULL, PyExc_SystemError); |
| 2434 | Py_DECREF(f); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2435 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2436 | /* Raise KeyError when popping from an empty set */ |
| 2437 | assert(PyNumber_InPlaceSubtract(ob, ob) == ob); |
| 2438 | Py_DECREF(ob); |
| 2439 | assert(PySet_GET_SIZE(ob) == 0); |
| 2440 | assertRaises(PySet_Pop(ob) == NULL, PyExc_KeyError); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2441 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2442 | /* Restore the set from the copy using the PyNumber API */ |
| 2443 | assert(PyNumber_InPlaceOr(ob, dup) == ob); |
| 2444 | Py_DECREF(ob); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2445 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2446 | /* Verify constructors accept NULL arguments */ |
| 2447 | f = PySet_New(NULL); |
| 2448 | assert(f != NULL); |
| 2449 | assert(PySet_GET_SIZE(f) == 0); |
| 2450 | Py_DECREF(f); |
| 2451 | f = PyFrozenSet_New(NULL); |
| 2452 | assert(f != NULL); |
| 2453 | assert(PyFrozenSet_CheckExact(f)); |
| 2454 | assert(PySet_GET_SIZE(f) == 0); |
| 2455 | Py_DECREF(f); |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2456 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2457 | Py_DECREF(elem); |
| 2458 | Py_DECREF(dup); |
| 2459 | Py_RETURN_TRUE; |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2460 | } |
| 2461 | |
Raymond Hettinger | 9bda1d6 | 2005-09-16 07:14:21 +0000 | [diff] [blame] | 2462 | #undef assertRaises |
| 2463 | |
Raymond Hettinger | c47e01d | 2005-08-16 10:44:15 +0000 | [diff] [blame] | 2464 | #endif |
Raymond Hettinger | bfc1e1a | 2013-08-23 03:22:15 -0500 | [diff] [blame] | 2465 | |
| 2466 | /***** Dummy Struct *************************************************/ |
| 2467 | |
| 2468 | static PyObject * |
| 2469 | dummy_repr(PyObject *op) |
| 2470 | { |
| 2471 | return PyUnicode_FromString("<dummy key>"); |
| 2472 | } |
| 2473 | |
Victor Stinner | 2a4903f | 2020-01-30 13:09:11 +0100 | [diff] [blame] | 2474 | static void _Py_NO_RETURN |
Raymond Hettinger | bfc1e1a | 2013-08-23 03:22:15 -0500 | [diff] [blame] | 2475 | dummy_dealloc(PyObject* ignore) |
| 2476 | { |
| 2477 | Py_FatalError("deallocating <dummy key>"); |
| 2478 | } |
| 2479 | |
| 2480 | static PyTypeObject _PySetDummy_Type = { |
| 2481 | PyVarObject_HEAD_INIT(&PyType_Type, 0) |
| 2482 | "<dummy key> type", |
| 2483 | 0, |
| 2484 | 0, |
| 2485 | dummy_dealloc, /*tp_dealloc*/ /*never called*/ |
Jeroen Demeyer | 530f506 | 2019-05-31 04:13:39 +0200 | [diff] [blame] | 2486 | 0, /*tp_vectorcall_offset*/ |
Raymond Hettinger | bfc1e1a | 2013-08-23 03:22:15 -0500 | [diff] [blame] | 2487 | 0, /*tp_getattr*/ |
| 2488 | 0, /*tp_setattr*/ |
Jeroen Demeyer | 530f506 | 2019-05-31 04:13:39 +0200 | [diff] [blame] | 2489 | 0, /*tp_as_async*/ |
Raymond Hettinger | bfc1e1a | 2013-08-23 03:22:15 -0500 | [diff] [blame] | 2490 | dummy_repr, /*tp_repr*/ |
| 2491 | 0, /*tp_as_number*/ |
| 2492 | 0, /*tp_as_sequence*/ |
| 2493 | 0, /*tp_as_mapping*/ |
| 2494 | 0, /*tp_hash */ |
| 2495 | 0, /*tp_call */ |
| 2496 | 0, /*tp_str */ |
| 2497 | 0, /*tp_getattro */ |
| 2498 | 0, /*tp_setattro */ |
| 2499 | 0, /*tp_as_buffer */ |
| 2500 | Py_TPFLAGS_DEFAULT, /*tp_flags */ |
| 2501 | }; |
| 2502 | |
| 2503 | static PyObject _dummy_struct = { |
| 2504 | _PyObject_EXTRA_INIT |
| 2505 | 2, &_PySetDummy_Type |
| 2506 | }; |
| 2507 | |