cpython-lru_cache-weakref: Modules/_collectionsmodule.c annotate

annotate Modules/_collectionsmodule.c @ 54294:dba767bc3155 legacy-trunk

remove mention of old ctypes version

author	Benjamin Peterson <benjamin@python.org>
date	Sat, 23 May 2009 20:59:09 +0000
parents	b0911b5a002e
children	271d382dcabd

rev	line source
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1 #include "Python.h"
32158 679e5c8effae Make sets and deques weak referencable. Raymond Hettinger <python@rcn.com> parents: 32119 diff changeset	2 #include "structmember.h"
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	3
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	4 /* collections module implementation of a deque() datatype
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	5 Written and maintained by Raymond D. Hettinger <python@rcn.com>
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	6 Copyright (c) 2004 Python Software Foundation.
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	7 All rights reserved.
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	8 */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	9
33643 91634f3ba213 Restore the block length and add a comment. Raymond Hettinger <python@rcn.com> parents: 33642 diff changeset	10 /* The block length may be set to any number over 1. Larger numbers
91634f3ba213 Restore the block length and add a comment. Raymond Hettinger <python@rcn.com> parents: 33642 diff changeset	11 * reduce the number of calls to the memory allocator but take more
91634f3ba213 Restore the block length and add a comment. Raymond Hettinger <python@rcn.com> parents: 33642 diff changeset	12 * memory. Ideally, BLOCKLEN should be set with an eye to the
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	13 * length of a cache line.
33643 91634f3ba213 Restore the block length and add a comment. Raymond Hettinger <python@rcn.com> parents: 33642 diff changeset	14 */
91634f3ba213 Restore the block length and add a comment. Raymond Hettinger <python@rcn.com> parents: 33642 diff changeset	15
33879 687362fa471c Bump-up block size. Raymond Hettinger <python@rcn.com> parents: 33697 diff changeset	16 #define BLOCKLEN 62
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	17 #define CENTER ((BLOCKLEN - 1) / 2)
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	18
33637 6f4bcb3bd202 Document some reverse-engineered invariants and pragmatic hints. Tim Peters <tim.peters@gmail.com> parents: 33635 diff changeset	19 /* A `dequeobject` is composed of a doubly-linked list of `block` nodes.
6f4bcb3bd202 Document some reverse-engineered invariants and pragmatic hints. Tim Peters <tim.peters@gmail.com> parents: 33635 diff changeset	20 * This list is not circular (the leftmost block has leftlink==NULL,
6f4bcb3bd202 Document some reverse-engineered invariants and pragmatic hints. Tim Peters <tim.peters@gmail.com> parents: 33635 diff changeset	21 * and the rightmost block has rightlink==NULL). A deque d's first
6f4bcb3bd202 Document some reverse-engineered invariants and pragmatic hints. Tim Peters <tim.peters@gmail.com> parents: 33635 diff changeset	22 * element is at d.leftblock[leftindex] and its last element is at
6f4bcb3bd202 Document some reverse-engineered invariants and pragmatic hints. Tim Peters <tim.peters@gmail.com> parents: 33635 diff changeset	23 * d.rightblock[rightindex]; note that, unlike as for Python slice
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	24 * indices, these indices are inclusive on both ends. By being inclusive
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	25 * on both ends, algorithms for left and right operations become
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	26 * symmetrical which simplifies the design.
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	27 *
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	28 * The list of blocks is never empty, so d.leftblock and d.rightblock
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	29 * are never equal to NULL.
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	30 *
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	31 * The indices, d.leftindex and d.rightindex are always in the range
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	32 * 0 <= index < BLOCKLEN.
33642 4fb8c89f66a0 Clarify the relationship between indices. Raymond Hettinger <python@rcn.com> parents: 33641 diff changeset	33 * Their exact relationship is:
4fb8c89f66a0 Clarify the relationship between indices. Raymond Hettinger <python@rcn.com> parents: 33641 diff changeset	34 * (d.leftindex + d.len - 1) % BLOCKLEN == d.rightindex.
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	35 *
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	36 * Empty deques have d.len == 0; d.leftblock==d.rightblock;
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	37 * d.leftindex == CENTER+1; and d.rightindex == CENTER.
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	38 * Checking for d.len == 0 is the intended way to see whether d is empty.
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	39 *
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	40 * Whenever d.leftblock == d.rightblock,
33642 4fb8c89f66a0 Clarify the relationship between indices. Raymond Hettinger <python@rcn.com> parents: 33641 diff changeset	41 * d.leftindex + d.len - 1 == d.rightindex.
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	42 *
33642 4fb8c89f66a0 Clarify the relationship between indices. Raymond Hettinger <python@rcn.com> parents: 33641 diff changeset	43 * However, when d.leftblock != d.rightblock, d.leftindex and d.rightindex
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	44 * become indices into distinct blocks and either may be larger than the
33642 4fb8c89f66a0 Clarify the relationship between indices. Raymond Hettinger <python@rcn.com> parents: 33641 diff changeset	45 * other.
33637 6f4bcb3bd202 Document some reverse-engineered invariants and pragmatic hints. Tim Peters <tim.peters@gmail.com> parents: 33635 diff changeset	46 */
6f4bcb3bd202 Document some reverse-engineered invariants and pragmatic hints. Tim Peters <tim.peters@gmail.com> parents: 33635 diff changeset	47
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	48 typedef struct BLOCK {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	49 struct BLOCK *leftlink;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	50 struct BLOCK *rightlink;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	51 PyObject *data[BLOCKLEN];
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	52 } block;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	53
43812 f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	54 #define MAXFREEBLOCKS 10
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	55 static Py_ssize_t numfreeblocks = 0;
43812 f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	56 static block *freeblocks[MAXFREEBLOCKS];
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	57
33635 836e92cc5c4f Definition consistency. Tim Peters <tim.peters@gmail.com> parents: 33634 diff changeset	58 static block *
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	59 newblock(block leftlink, block rightlink, Py_ssize_t len) {
33677 262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	60 block *b;
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	61 /* To prevent len from overflowing PY_SSIZE_T_MAX on 64-bit machines, we
33677 262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	62 * refuse to allocate new blocks if the current len is dangerously
262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	63 * close. There is some extra margin to prevent spurious arithmetic
262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	64 * overflows at various places. The following check ensures that
262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	65 * the blocks allocated to the deque, in the worst case, can only
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	66 * have PY_SSIZE_T_MAX-2 entries in total.
33677 262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	67 */
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	68 if (len >= PY_SSIZE_T_MAX - 2*BLOCKLEN) {
33677 262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	69 PyErr_SetString(PyExc_OverflowError,
262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	70 "cannot add more blocks to the deque");
262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	71 return NULL;
262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	72 }
43812 f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	73 if (numfreeblocks) {
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	74 numfreeblocks -= 1;
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	75 b = freeblocks[numfreeblocks];
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	76 } else {
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	77 b = PyMem_Malloc(sizeof(block));
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	78 if (b == NULL) {
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	79 PyErr_NoMemory();
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	80 return NULL;
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	81 }
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	82 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	83 b->leftlink = leftlink;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	84 b->rightlink = rightlink;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	85 return b;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	86 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	87
47678 a35da94e05fc Make more symbols static. Martin v. Löwis <martin@v.loewis.de> parents: 47527 diff changeset	88 static void
43812 f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	89 freeblock(block *b)
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	90 {
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	91 if (numfreeblocks < MAXFREEBLOCKS) {
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	92 freeblocks[numfreeblocks] = b;
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	93 numfreeblocks++;
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	94 } else {
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	95 PyMem_Free(b);
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	96 }
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	97 }
f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	98
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	99 typedef struct {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	100 PyObject_HEAD
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	101 block *leftblock;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	102 block *rightblock;
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	103 Py_ssize_t leftindex; /* in range(BLOCKLEN) */
b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	104 Py_ssize_t rightindex; /* in range(BLOCKLEN) */
b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	105 Py_ssize_t len;
b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	106 Py_ssize_t maxlen;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	107 long state; /* incremented whenever the indices move */
32158 679e5c8effae Make sets and deques weak referencable. Raymond Hettinger <python@rcn.com> parents: 32119 diff changeset	108 PyObject weakreflist; / List of weak references */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	109 } dequeobject;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	110
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	111 /* The deque's size limit is d.maxlen. The limit can be zero or positive.
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	112 * If there is no limit, then d.maxlen == -1.
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	113 *
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	114 * After an item is added to a deque, we check to see if the size has grown past
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	115 * the limit. If it has, we get the size back down to the limit by popping an
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	116 * item off of the opposite end. The methods that can trigger this are append(),
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	117 * appendleft(), extend(), and extendleft().
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	118 */
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	119
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	120 #define TRIM(d, popfunction) \
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	121 if (d->maxlen != -1 && d->len > d->maxlen) { \
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	122 PyObject *rv = popfunction(d, NULL); \
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	123 assert(rv != NULL && d->len <= d->maxlen); \
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	124 Py_DECREF(rv); \
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	125 }
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	126
31605 2fed331de014 Make deque_type static so namespace is not polluted. Neal Norwitz <nnorwitz@gmail.com> parents: 31603 diff changeset	127 static PyTypeObject deque_type;
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	128
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	129 static PyObject *
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	130 deque_new(PyTypeObject type, PyObject args, PyObject *kwds)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	131 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	132 dequeobject *deque;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	133 block *b;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	134
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	135 /* create dequeobject structure */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	136 deque = (dequeobject *)type->tp_alloc(type, 0);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	137 if (deque == NULL)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	138 return NULL;
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	139
33677 262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	140 b = newblock(NULL, NULL, 0);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	141 if (b == NULL) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	142 Py_DECREF(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	143 return NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	144 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	145
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	146 assert(BLOCKLEN >= 2);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	147 deque->leftblock = b;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	148 deque->rightblock = b;
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	149 deque->leftindex = CENTER + 1;
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	150 deque->rightindex = CENTER;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	151 deque->len = 0;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	152 deque->state = 0;
32158 679e5c8effae Make sets and deques weak referencable. Raymond Hettinger <python@rcn.com> parents: 32119 diff changeset	153 deque->weakreflist = NULL;
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	154 deque->maxlen = -1;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	155
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	156 return (PyObject *)deque;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	157 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	158
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	159 static PyObject *
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	160 deque_pop(dequeobject deque, PyObject unused)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	161 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	162 PyObject *item;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	163 block *prevblock;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	164
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	165 if (deque->len == 0) {
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	166 PyErr_SetString(PyExc_IndexError, "pop from an empty deque");
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	167 return NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	168 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	169 item = deque->rightblock->data[deque->rightindex];
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	170 deque->rightindex--;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	171 deque->len--;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	172 deque->state++;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	173
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	174 if (deque->rightindex == -1) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	175 if (deque->len == 0) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	176 assert(deque->leftblock == deque->rightblock);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	177 assert(deque->leftindex == deque->rightindex+1);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	178 /* re-center instead of freeing a block */
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	179 deque->leftindex = CENTER + 1;
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	180 deque->rightindex = CENTER;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	181 } else {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	182 prevblock = deque->rightblock->leftlink;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	183 assert(deque->leftblock != deque->rightblock);
43812 f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	184 freeblock(deque->rightblock);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	185 prevblock->rightlink = NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	186 deque->rightblock = prevblock;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	187 deque->rightindex = BLOCKLEN - 1;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	188 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	189 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	190 return item;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	191 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	192
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	193 PyDoc_STRVAR(pop_doc, "Remove and return the rightmost element.");
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	194
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	195 static PyObject *
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	196 deque_popleft(dequeobject deque, PyObject unused)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	197 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	198 PyObject *item;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	199 block *prevblock;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	200
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	201 if (deque->len == 0) {
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	202 PyErr_SetString(PyExc_IndexError, "pop from an empty deque");
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	203 return NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	204 }
39475 249a59acb6ef Really address the issue of where to place the assert for leftblock. Neal Norwitz <nnorwitz@gmail.com> parents: 39451 diff changeset	205 assert(deque->leftblock != NULL);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	206 item = deque->leftblock->data[deque->leftindex];
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	207 deque->leftindex++;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	208 deque->len--;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	209 deque->state++;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	210
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	211 if (deque->leftindex == BLOCKLEN) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	212 if (deque->len == 0) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	213 assert(deque->leftblock == deque->rightblock);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	214 assert(deque->leftindex == deque->rightindex+1);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	215 /* re-center instead of freeing a block */
33641 cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	216 deque->leftindex = CENTER + 1;
cd70f1ac3c25 * Elaborate on the invariant comments and make them more precise. Raymond Hettinger <python@rcn.com> parents: 33639 diff changeset	217 deque->rightindex = CENTER;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	218 } else {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	219 assert(deque->leftblock != deque->rightblock);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	220 prevblock = deque->leftblock->rightlink;
43812 f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	221 freeblock(deque->leftblock);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	222 assert(prevblock != NULL);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	223 prevblock->leftlink = NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	224 deque->leftblock = prevblock;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	225 deque->leftindex = 0;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	226 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	227 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	228 return item;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	229 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	230
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	231 PyDoc_STRVAR(popleft_doc, "Remove and return the leftmost element.");
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	232
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	233 static PyObject *
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	234 deque_append(dequeobject deque, PyObject item)
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	235 {
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	236 deque->state++;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	237 if (deque->rightindex == BLOCKLEN-1) {
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	238 block *b = newblock(deque->rightblock, NULL, deque->len);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	239 if (b == NULL)
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	240 return NULL;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	241 assert(deque->rightblock->rightlink == NULL);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	242 deque->rightblock->rightlink = b;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	243 deque->rightblock = b;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	244 deque->rightindex = -1;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	245 }
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	246 Py_INCREF(item);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	247 deque->len++;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	248 deque->rightindex++;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	249 deque->rightblock->data[deque->rightindex] = item;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	250 TRIM(deque, deque_popleft);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	251 Py_RETURN_NONE;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	252 }
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	253
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	254 PyDoc_STRVAR(append_doc, "Add an element to the right side of the deque.");
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	255
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	256 static PyObject *
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	257 deque_appendleft(dequeobject deque, PyObject item)
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	258 {
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	259 deque->state++;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	260 if (deque->leftindex == 0) {
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	261 block *b = newblock(NULL, deque->leftblock, deque->len);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	262 if (b == NULL)
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	263 return NULL;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	264 assert(deque->leftblock->leftlink == NULL);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	265 deque->leftblock->leftlink = b;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	266 deque->leftblock = b;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	267 deque->leftindex = BLOCKLEN;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	268 }
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	269 Py_INCREF(item);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	270 deque->len++;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	271 deque->leftindex--;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	272 deque->leftblock->data[deque->leftindex] = item;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	273 TRIM(deque, deque_pop);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	274 Py_RETURN_NONE;
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	275 }
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	276
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	277 PyDoc_STRVAR(appendleft_doc, "Add an element to the left side of the deque.");
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	278
52117 ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	279
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	280 /* Run an iterator to exhaustion. Shortcut for
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	281 the extend/extendleft methods when maxlen == 0. */
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	282 static PyObject*
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	283 consume_iterator(PyObject *it)
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	284 {
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	285 PyObject *item;
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	286
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	287 while ((item = PyIter_Next(it)) != NULL) {
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	288 Py_DECREF(item);
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	289 }
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	290 Py_DECREF(it);
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	291 if (PyErr_Occurred())
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	292 return NULL;
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	293 Py_RETURN_NONE;
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	294 }
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	295
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	296 static PyObject *
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	297 deque_extend(dequeobject deque, PyObject iterable)
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	298 {
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	299 PyObject it, item;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	300
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	301 it = PyObject_GetIter(iterable);
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	302 if (it == NULL)
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	303 return NULL;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	304
52117 ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	305 if (deque->maxlen == 0)
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	306 return consume_iterator(it);
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	307
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	308 while ((item = PyIter_Next(it)) != NULL) {
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	309 deque->state++;
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	310 if (deque->rightindex == BLOCKLEN-1) {
33677 262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	311 block *b = newblock(deque->rightblock, NULL,
262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	312 deque->len);
31466 f04ccc288542 * Fix ref counting in extend() and extendleft(). Raymond Hettinger <python@rcn.com> parents: 31464 diff changeset	313 if (b == NULL) {
f04ccc288542 * Fix ref counting in extend() and extendleft(). Raymond Hettinger <python@rcn.com> parents: 31464 diff changeset	314 Py_DECREF(item);
f04ccc288542 * Fix ref counting in extend() and extendleft(). Raymond Hettinger <python@rcn.com> parents: 31464 diff changeset	315 Py_DECREF(it);
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	316 return NULL;
31466 f04ccc288542 * Fix ref counting in extend() and extendleft(). Raymond Hettinger <python@rcn.com> parents: 31464 diff changeset	317 }
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	318 assert(deque->rightblock->rightlink == NULL);
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	319 deque->rightblock->rightlink = b;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	320 deque->rightblock = b;
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	321 deque->rightindex = -1;
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	322 }
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	323 deque->len++;
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	324 deque->rightindex++;
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	325 deque->rightblock->data[deque->rightindex] = item;
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	326 TRIM(deque, deque_popleft);
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	327 }
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	328 Py_DECREF(it);
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	329 if (PyErr_Occurred())
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	330 return NULL;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	331 Py_RETURN_NONE;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	332 }
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	333
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	334 PyDoc_STRVAR(extend_doc,
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	335 "Extend the right side of the deque with elements from the iterable");
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	336
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	337 static PyObject *
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	338 deque_extendleft(dequeobject deque, PyObject iterable)
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	339 {
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	340 PyObject it, item;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	341
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	342 it = PyObject_GetIter(iterable);
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	343 if (it == NULL)
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	344 return NULL;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	345
52117 ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	346 if (deque->maxlen == 0)
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	347 return consume_iterator(it);
ab7a7215e463 Small optimization for corner case where maxlen==0. Raymond Hettinger <python@rcn.com> parents: 50522 diff changeset	348
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	349 while ((item = PyIter_Next(it)) != NULL) {
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	350 deque->state++;
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	351 if (deque->leftindex == 0) {
33677 262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	352 block *b = newblock(NULL, deque->leftblock,
262e1cf41d34 Armin's patch to prevent overflows. Raymond Hettinger <python@rcn.com> parents: 33648 diff changeset	353 deque->len);
31466 f04ccc288542 * Fix ref counting in extend() and extendleft(). Raymond Hettinger <python@rcn.com> parents: 31464 diff changeset	354 if (b == NULL) {
f04ccc288542 * Fix ref counting in extend() and extendleft(). Raymond Hettinger <python@rcn.com> parents: 31464 diff changeset	355 Py_DECREF(item);
f04ccc288542 * Fix ref counting in extend() and extendleft(). Raymond Hettinger <python@rcn.com> parents: 31464 diff changeset	356 Py_DECREF(it);
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	357 return NULL;
31466 f04ccc288542 * Fix ref counting in extend() and extendleft(). Raymond Hettinger <python@rcn.com> parents: 31464 diff changeset	358 }
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	359 assert(deque->leftblock->leftlink == NULL);
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	360 deque->leftblock->leftlink = b;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	361 deque->leftblock = b;
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	362 deque->leftindex = BLOCKLEN;
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	363 }
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	364 deque->len++;
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	365 deque->leftindex--;
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	366 deque->leftblock->data[deque->leftindex] = item;
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	367 TRIM(deque, deque_pop);
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	368 }
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	369 Py_DECREF(it);
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	370 if (PyErr_Occurred())
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	371 return NULL;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	372 Py_RETURN_NONE;
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	373 }
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	374
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	375 PyDoc_STRVAR(extendleft_doc,
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	376 "Extend the left side of the deque with elements from the iterable");
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	377
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	378 static int
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36484 diff changeset	379 _deque_rotate(dequeobject *deque, Py_ssize_t n)
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	380 {
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	381 Py_ssize_t i, len=deque->len, halflen=(len+1)>>1;
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	382 PyObject item, rv;
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	383
31476 25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	384 if (len == 0)
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	385 return 0;
31476 25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	386 if (n > halflen \|\| n < -halflen) {
25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	387 n %= len;
25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	388 if (n > halflen)
25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	389 n -= len;
25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	390 else if (n < -halflen)
25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	391 n += len;
25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	392 }
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	393
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	394 for (i=0 ; i<n ; i++) {
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	395 item = deque_pop(deque, NULL);
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	396 assert (item != NULL);
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	397 rv = deque_appendleft(deque, item);
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	398 Py_DECREF(item);
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	399 if (rv == NULL)
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	400 return -1;
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	401 Py_DECREF(rv);
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	402 }
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	403 for (i=0 ; i>n ; i--) {
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	404 item = deque_popleft(deque, NULL);
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	405 assert (item != NULL);
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	406 rv = deque_append(deque, item);
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	407 Py_DECREF(item);
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	408 if (rv == NULL)
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	409 return -1;
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	410 Py_DECREF(rv);
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	411 }
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	412 return 0;
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	413 }
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	414
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	415 static PyObject *
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	416 deque_rotate(dequeobject deque, PyObject args)
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	417 {
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	418 Py_ssize_t n=1;
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	419
48060 759a7323591e Parse to the correct datatype. Raymond Hettinger <python@rcn.com> parents: 48059 diff changeset	420 if (!PyArg_ParseTuple(args, "\|n:rotate", &n))
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	421 return NULL;
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	422 if (_deque_rotate(deque, n) == 0)
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	423 Py_RETURN_NONE;
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	424 return NULL;
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	425 }
3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	426
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	427 PyDoc_STRVAR(rotate_doc,
31476 25b30439fe22 Make deque.rotate() smarter. Beef-up related tests. Raymond Hettinger <python@rcn.com> parents: 31474 diff changeset	428 "Rotate the deque n steps to the right (default n=1). If n is negative, rotates left.");
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	429
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36484 diff changeset	430 static Py_ssize_t
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	431 deque_len(dequeobject *deque)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	432 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	433 return deque->len;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	434 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	435
34771 fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	436 static PyObject *
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	437 deque_remove(dequeobject deque, PyObject value)
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	438 {
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36484 diff changeset	439 Py_ssize_t i, n=deque->len;
34771 fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	440
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	441 for (i=0 ; i<n ; i++) {
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	442 PyObject *item = deque->leftblock->data[deque->leftindex];
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	443 int cmp = PyObject_RichCompareBool(item, value, Py_EQ);
34772 2ee575b9b60e Apply remove's mutation test after every equality test. Raymond Hettinger <python@rcn.com> parents: 34771 diff changeset	444
2ee575b9b60e Apply remove's mutation test after every equality test. Raymond Hettinger <python@rcn.com> parents: 34771 diff changeset	445 if (deque->len != n) {
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	446 PyErr_SetString(PyExc_IndexError,
34772 2ee575b9b60e Apply remove's mutation test after every equality test. Raymond Hettinger <python@rcn.com> parents: 34771 diff changeset	447 "deque mutated during remove().");
2ee575b9b60e Apply remove's mutation test after every equality test. Raymond Hettinger <python@rcn.com> parents: 34771 diff changeset	448 return NULL;
2ee575b9b60e Apply remove's mutation test after every equality test. Raymond Hettinger <python@rcn.com> parents: 34771 diff changeset	449 }
34771 fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	450 if (cmp > 0) {
34772 2ee575b9b60e Apply remove's mutation test after every equality test. Raymond Hettinger <python@rcn.com> parents: 34771 diff changeset	451 PyObject *tgt = deque_popleft(deque, NULL);
34771 fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	452 assert (tgt != NULL);
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	453 Py_DECREF(tgt);
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	454 if (_deque_rotate(deque, i) == -1)
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	455 return NULL;
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	456 Py_RETURN_NONE;
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	457 }
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	458 else if (cmp < 0) {
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	459 _deque_rotate(deque, i);
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	460 return NULL;
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	461 }
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	462 _deque_rotate(deque, -1);
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	463 }
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	464 PyErr_SetString(PyExc_ValueError, "deque.remove(x): x not in deque");
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	465 return NULL;
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	466 }
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	467
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	468 PyDoc_STRVAR(remove_doc,
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	469 "D.remove(value) -- remove first occurrence of value.");
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	470
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	471 static int
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	472 deque_clear(dequeobject *deque)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	473 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	474 PyObject *item;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	475
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	476 while (deque->len) {
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	477 item = deque_pop(deque, NULL);
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	478 assert (item != NULL);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	479 Py_DECREF(item);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	480 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	481 assert(deque->leftblock == deque->rightblock &&
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	482 deque->leftindex - 1 == deque->rightindex &&
00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	483 deque->len == 0);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	484 return 0;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	485 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	486
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	487 static PyObject *
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	488 deque_item(dequeobject *deque, Py_ssize_t i)
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	489 {
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	490 block *b;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	491 PyObject *item;
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	492 Py_ssize_t n, index=i;
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	493
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	494 if (i < 0 \|\| i >= deque->len) {
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	495 PyErr_SetString(PyExc_IndexError,
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	496 "deque index out of range");
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	497 return NULL;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	498 }
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	499
31615 739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	500 if (i == 0) {
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	501 i = deque->leftindex;
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	502 b = deque->leftblock;
31615 739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	503 } else if (i == deque->len - 1) {
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	504 i = deque->rightindex;
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	505 b = deque->rightblock;
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	506 } else {
31615 739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	507 i += deque->leftindex;
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	508 n = i / BLOCKLEN;
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	509 i %= BLOCKLEN;
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	510 if (index < (deque->len >> 1)) {
31615 739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	511 b = deque->leftblock;
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	512 while (n--)
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	513 b = b->rightlink;
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	514 } else {
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	515 n = (deque->leftindex + deque->len - 1) / BLOCKLEN - n;
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	516 b = deque->rightblock;
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	517 while (n--)
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	518 b = b->leftlink;
739ab9de2a1b Special case endpoint access for speed. Raymond Hettinger <python@rcn.com> parents: 31607 diff changeset	519 }
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	520 }
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	521 item = b->data[i];
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	522 Py_INCREF(item);
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	523 return item;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	524 }
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	525
32413 d7110bb6c13d Add a comment with implementation notes. Raymond Hettinger <python@rcn.com> parents: 32363 diff changeset	526 /* delitem() implemented in terms of rotate for simplicity and reasonable
d7110bb6c13d Add a comment with implementation notes. Raymond Hettinger <python@rcn.com> parents: 32363 diff changeset	527 performance near the end points. If for some reason this method becomes
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	528 popular, it is not hard to re-implement this using direct data movement
32413 d7110bb6c13d Add a comment with implementation notes. Raymond Hettinger <python@rcn.com> parents: 32363 diff changeset	529 (similar to code in list slice assignment) and achieve a two or threefold
d7110bb6c13d Add a comment with implementation notes. Raymond Hettinger <python@rcn.com> parents: 32363 diff changeset	530 performance boost.
d7110bb6c13d Add a comment with implementation notes. Raymond Hettinger <python@rcn.com> parents: 32363 diff changeset	531 */
d7110bb6c13d Add a comment with implementation notes. Raymond Hettinger <python@rcn.com> parents: 32363 diff changeset	532
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	533 static int
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36484 diff changeset	534 deque_del_item(dequeobject *deque, Py_ssize_t i)
32084 245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	535 {
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	536 PyObject *item;
32084 245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	537
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	538 assert (i >= 0 && i < deque->len);
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	539 if (_deque_rotate(deque, -i) == -1)
aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	540 return -1;
32084 245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	541
245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	542 item = deque_popleft(deque, NULL);
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	543 assert (item != NULL);
32084 245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	544 Py_DECREF(item);
245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	545
33697 aac4cc6618b5 Simplify delitem() code by calling rotate() directly instead of using Raymond Hettinger <python@rcn.com> parents: 33677 diff changeset	546 return _deque_rotate(deque, i);
32084 245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	547 }
245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	548
245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	549 static int
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36484 diff changeset	550 deque_ass_item(dequeobject deque, Py_ssize_t i, PyObject v)
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	551 {
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	552 PyObject *old_value;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	553 block *b;
36518 9f3f87e920a6 Use Py_ssize_t for counts and sizes. Martin v. Löwis <martin@v.loewis.de> parents: 36501 diff changeset	554 Py_ssize_t n, len=deque->len, halflen=(len+1)>>1, index=i;
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	555
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	556 if (i < 0 \|\| i >= len) {
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	557 PyErr_SetString(PyExc_IndexError,
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	558 "deque index out of range");
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	559 return -1;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	560 }
32084 245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	561 if (v == NULL)
245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	562 return deque_del_item(deque, i);
245835ed8de8 Make sure "del d[n]" is properly supported. Was necessary because the Raymond Hettinger <python@rcn.com> parents: 31908 diff changeset	563
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	564 i += deque->leftindex;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	565 n = i / BLOCKLEN;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	566 i %= BLOCKLEN;
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	567 if (index <= halflen) {
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	568 b = deque->leftblock;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	569 while (n--)
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	570 b = b->rightlink;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	571 } else {
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	572 n = (deque->leftindex + len - 1) / BLOCKLEN - n;
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	573 b = deque->rightblock;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	574 while (n--)
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	575 b = b->leftlink;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	576 }
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	577 Py_INCREF(v);
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	578 old_value = b->data[i];
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	579 b->data[i] = v;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	580 Py_DECREF(old_value);
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	581 return 0;
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	582 }
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	583
8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	584 static PyObject *
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	585 deque_clearmethod(dequeobject *deque)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	586 {
32554 74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	587 int rv;
74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	588
74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	589 rv = deque_clear(deque);
74c3b713e35a * balance the left/right search for getitem. Raymond Hettinger <python@rcn.com> parents: 32413 diff changeset	590 assert (rv != -1);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	591 Py_RETURN_NONE;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	592 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	593
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	594 PyDoc_STRVAR(clear_doc, "Remove all elements from the deque.");
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	595
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	596 static void
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	597 deque_dealloc(dequeobject *deque)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	598 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	599 PyObject_GC_UnTrack(deque);
32158 679e5c8effae Make sets and deques weak referencable. Raymond Hettinger <python@rcn.com> parents: 32119 diff changeset	600 if (deque->weakreflist != NULL)
679e5c8effae Make sets and deques weak referencable. Raymond Hettinger <python@rcn.com> parents: 32119 diff changeset	601 PyObject_ClearWeakRefs((PyObject *) deque);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	602 if (deque->leftblock != NULL) {
32752 dbd3a04eb0c6 Silence a GCC unused variable warning in debug builds. Raymond Hettinger <python@rcn.com> parents: 32701 diff changeset	603 deque_clear(deque);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	604 assert(deque->leftblock != NULL);
43812 f82a20dda465 Use a freelist to speed-up block allocation and deallocation in collections.deque(). Raymond Hettinger <python@rcn.com> parents: 43517 diff changeset	605 freeblock(deque->leftblock);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	606 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	607 deque->leftblock = NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	608 deque->rightblock = NULL;
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 44281 diff changeset	609 Py_TYPE(deque)->tp_free(deque);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	610 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	611
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	612 static int
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	613 deque_traverse(dequeobject deque, visitproc visit, void arg)
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	614 {
33639 40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	615 block *b;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	616 PyObject *item;
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	617 Py_ssize_t index;
b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	618 Py_ssize_t indexlo = deque->leftindex;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	619
33639 40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	620 for (b = deque->leftblock; b != NULL; b = b->rightlink) {
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	621 const Py_ssize_t indexhi = b == deque->rightblock ?
33639 40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	622 deque->rightindex :
40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	623 BLOCKLEN - 1;
40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	624
40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	625 for (index = indexlo; index <= indexhi; ++index) {
40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	626 item = b->data[index];
40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	627 Py_VISIT(item);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	628 }
33639 40350fbe665d deque_traverse(): If the deque had one block, and its rightindex was Tim Peters <tim.peters@gmail.com> parents: 33638 diff changeset	629 indexlo = 0;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	630 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	631 return 0;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	632 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	633
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	634 static PyObject *
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	635 deque_copy(PyObject *deque)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	636 {
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	637 if (((dequeobject *)deque)->maxlen == -1)
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 44281 diff changeset	638 return PyObject_CallFunction((PyObject *)(Py_TYPE(deque)), "O", deque, NULL);
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	639 else
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 44281 diff changeset	640 return PyObject_CallFunction((PyObject *)(Py_TYPE(deque)), "Oi",
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	641 deque, ((dequeobject *)deque)->maxlen, NULL);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	642 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	643
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	644 PyDoc_STRVAR(copy_doc, "Return a shallow copy of a deque.");
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	645
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	646 static PyObject *
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	647 deque_reduce(dequeobject *deque)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	648 {
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	649 PyObject dict, result, *aslist;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	650
33949 b9819b9a0dad SF patch #1062279: deque pickling problems Raymond Hettinger <python@rcn.com> parents: 33879 diff changeset	651 dict = PyObject_GetAttrString((PyObject *)deque, "__dict__");
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	652 if (dict == NULL)
33949 b9819b9a0dad SF patch #1062279: deque pickling problems Raymond Hettinger <python@rcn.com> parents: 33879 diff changeset	653 PyErr_Clear();
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	654 aslist = PySequence_List((PyObject *)deque);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	655 if (aslist == NULL) {
43469 f2c9f24a0f5a dict could be NULL, so we need to XDECREF. Neal Norwitz <nnorwitz@gmail.com> parents: 43466 diff changeset	656 Py_XDECREF(dict);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	657 return NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	658 }
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	659 if (dict == NULL) {
da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	660 if (deque->maxlen == -1)
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 44281 diff changeset	661 result = Py_BuildValue("O(O)", Py_TYPE(deque), aslist);
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	662 else
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	663 result = Py_BuildValue("O(On)", Py_TYPE(deque), aslist, deque->maxlen);
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	664 } else {
da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	665 if (deque->maxlen == -1)
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 44281 diff changeset	666 result = Py_BuildValue("O(OO)O", Py_TYPE(deque), aslist, Py_None, dict);
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	667 else
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	668 result = Py_BuildValue("O(On)O", Py_TYPE(deque), aslist, deque->maxlen, dict);
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	669 }
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	670 Py_XDECREF(dict);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	671 Py_DECREF(aslist);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	672 return result;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	673 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	674
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	675 PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	676
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	677 static PyObject *
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	678 deque_repr(PyObject *deque)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	679 {
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	680 PyObject aslist, result, *fmt;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	681 int i;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	682
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	683 i = Py_ReprEnter(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	684 if (i != 0) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	685 if (i < 0)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	686 return NULL;
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	687 return PyString_FromString("[...]");
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	688 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	689
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	690 aslist = PySequence_List(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	691 if (aslist == NULL) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	692 Py_ReprLeave(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	693 return NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	694 }
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	695 if (((dequeobject *)deque)->maxlen != -1)
49138 145449109a31 #3743: PY_FORMAT_SIZE_T is designed for the OS "printf" functions, not for Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 48832 diff changeset	696 fmt = PyString_FromFormat("deque(%%r, maxlen=%zd)",
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	697 ((dequeobject *)deque)->maxlen);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	698 else
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	699 fmt = PyString_FromString("deque(%r)");
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	700 if (fmt == NULL) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	701 Py_DECREF(aslist);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	702 Py_ReprLeave(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	703 return NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	704 }
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	705 result = PyString_Format(fmt, aslist);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	706 Py_DECREF(fmt);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	707 Py_DECREF(aslist);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	708 Py_ReprLeave(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	709 return result;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	710 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	711
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	712 static int
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	713 deque_tp_print(PyObject deque, FILE fp, int flags)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	714 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	715 PyObject it, item;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	716 char emit = ""; / No separator emitted on first pass */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	717 char *separator = ", ";
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	718 int i;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	719
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	720 i = Py_ReprEnter(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	721 if (i != 0) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	722 if (i < 0)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	723 return i;
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	724 Py_BEGIN_ALLOW_THREADS
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	725 fputs("[...]", fp);
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	726 Py_END_ALLOW_THREADS
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	727 return 0;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	728 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	729
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	730 it = PyObject_GetIter(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	731 if (it == NULL)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	732 return -1;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	733
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	734 Py_BEGIN_ALLOW_THREADS
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	735 fputs("deque([", fp);
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	736 Py_END_ALLOW_THREADS
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	737 while ((item = PyIter_Next(it)) != NULL) {
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	738 Py_BEGIN_ALLOW_THREADS
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	739 fputs(emit, fp);
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	740 Py_END_ALLOW_THREADS
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	741 emit = separator;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	742 if (PyObject_Print(item, fp, 0) != 0) {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	743 Py_DECREF(item);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	744 Py_DECREF(it);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	745 Py_ReprLeave(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	746 return -1;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	747 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	748 Py_DECREF(item);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	749 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	750 Py_ReprLeave(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	751 Py_DECREF(it);
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	752 if (PyErr_Occurred())
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	753 return -1;
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	754
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	755 Py_BEGIN_ALLOW_THREADS
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	756 if (((dequeobject *)deque)->maxlen == -1)
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	757 fputs("])", fp);
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	758 else
48829 74899e6c87a5 Fixed two format strings in the _collections module. For example Christian Heimes <christian@cheimes.de> parents: 48060 diff changeset	759 fprintf(fp, "], maxlen=%" PY_FORMAT_SIZE_T "d)", ((dequeobject *)deque)->maxlen);
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	760 Py_END_ALLOW_THREADS
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	761 return 0;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	762 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	763
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	764 static PyObject *
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	765 deque_richcompare(PyObject v, PyObject w, int op)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	766 {
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	767 PyObject it1=NULL, it2=NULL, x, y;
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	768 Py_ssize_t vs, ws;
b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	769 int b, cmp=-1;
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	770
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	771 if (!PyObject_TypeCheck(v, &deque_type) \|\|
32119 dd1e55deaf52 Make type check work with subclasses Raymond Hettinger <python@rcn.com> parents: 32084 diff changeset	772 !PyObject_TypeCheck(w, &deque_type)) {
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	773 Py_INCREF(Py_NotImplemented);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	774 return Py_NotImplemented;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	775 }
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	776
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	777 /* Shortcuts */
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	778 vs = ((dequeobject *)v)->len;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	779 ws = ((dequeobject *)w)->len;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	780 if (op == Py_EQ) {
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	781 if (v == w)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	782 Py_RETURN_TRUE;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	783 if (vs != ws)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	784 Py_RETURN_FALSE;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	785 }
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	786 if (op == Py_NE) {
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	787 if (v == w)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	788 Py_RETURN_FALSE;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	789 if (vs != ws)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	790 Py_RETURN_TRUE;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	791 }
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	792
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	793 /* Search for the first index where items are different */
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	794 it1 = PyObject_GetIter(v);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	795 if (it1 == NULL)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	796 goto done;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	797 it2 = PyObject_GetIter(w);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	798 if (it2 == NULL)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	799 goto done;
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	800 for (;;) {
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	801 x = PyIter_Next(it1);
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	802 if (x == NULL && PyErr_Occurred())
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	803 goto done;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	804 y = PyIter_Next(it2);
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	805 if (x == NULL \|\| y == NULL)
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	806 break;
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	807 b = PyObject_RichCompareBool(x, y, Py_EQ);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	808 if (b == 0) {
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	809 cmp = PyObject_RichCompareBool(x, y, op);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	810 Py_DECREF(x);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	811 Py_DECREF(y);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	812 goto done;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	813 }
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	814 Py_DECREF(x);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	815 Py_DECREF(y);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	816 if (b == -1)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	817 goto done;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	818 }
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	819 /* We reached the end of one deque or both */
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	820 Py_XDECREF(x);
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	821 Py_XDECREF(y);
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	822 if (PyErr_Occurred())
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	823 goto done;
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	824 switch (op) {
33648 7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	825 case Py_LT: cmp = y != NULL; break; /* if w was longer */
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	826 case Py_LE: cmp = x == NULL; break; /* if v was not longer */
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	827 case Py_EQ: cmp = x == y; break; /* if we reached the end of both */
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	828 case Py_NE: cmp = x != y; break; /* if one deque continues */
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	829 case Py_GT: cmp = x != NULL; break; /* if v was longer */
7c50cde1e4fd Upon insertion, if memory runs out, the deque was left in a corrupted state. Armin Rigo <arigo@tunes.org> parents: 33644 diff changeset	830 case Py_GE: cmp = y == NULL; break; /* if w was not longer */
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	831 }
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	832
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	833 done:
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	834 Py_XDECREF(it1);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	835 Py_XDECREF(it2);
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	836 if (cmp == 1)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	837 Py_RETURN_TRUE;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	838 if (cmp == 0)
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	839 Py_RETURN_FALSE;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	840 return NULL;
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	841 }
15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	842
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	843 static int
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	844 deque_init(dequeobject deque, PyObject args, PyObject *kwdargs)
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	845 {
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	846 PyObject *iterable = NULL;
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	847 PyObject *maxlenobj = NULL;
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	848 Py_ssize_t maxlen = -1;
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	849 char *kwlist[] = {"iterable", "maxlen", 0};
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	850
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	851 if (!PyArg_ParseTupleAndKeywords(args, kwdargs, "\|OO:deque", kwlist, &iterable, &maxlenobj))
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	852 return -1;
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	853 if (maxlenobj != NULL && maxlenobj != Py_None) {
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	854 maxlen = PyInt_AsSsize_t(maxlenobj);
43517 da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	855 if (maxlen == -1 && PyErr_Occurred())
da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	856 return -1;
da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	857 if (maxlen < 0) {
da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	858 PyErr_SetString(PyExc_ValueError, "maxlen must be non-negative");
da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	859 return -1;
da52b4c776a4 Accept Jim Jewett's api suggestion to use None instead of -1 to indicate unbounded deques. Raymond Hettinger <python@rcn.com> parents: 43475 diff changeset	860 }
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	861 }
73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	862 deque->maxlen = maxlen;
44281 c2e72feb53b3 Fix bug 1604. deque.__init__() did not clear existing contents like list.__init__. Not a backport candidate. Raymond Hettinger <python@rcn.com> parents: 43812 diff changeset	863 deque_clear(deque);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	864 if (iterable != NULL) {
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	865 PyObject *rv = deque_extend(deque, iterable);
aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	866 if (rv == NULL)
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	867 return -1;
31464 aabd9b54e469 Have deques support high volume loads. Raymond Hettinger <python@rcn.com> parents: 31438 diff changeset	868 Py_DECREF(rv);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	869 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	870 return 0;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	871 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	872
52119 b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	873 static PyObject *
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	874 deque_get_maxlen(dequeobject *deque)
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	875 {
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	876 if (deque->maxlen == -1)
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	877 Py_RETURN_NONE;
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	878 return PyInt_FromSsize_t(deque->maxlen);
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	879 }
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	880
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	881 static PyGetSetDef deque_getset[] = {
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	882 {"maxlen", (getter)deque_get_maxlen, (setter)NULL,
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	883 "maximum size of a deque or None if unbounded"},
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	884 {0}
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	885 };
b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	886
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	887 static PySequenceMethods deque_as_sequence = {
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36484 diff changeset	888 (lenfunc)deque_len, /* sq_length */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	889 0, /* sq_concat */
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	890 0, /* sq_repeat */
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36484 diff changeset	891 (ssizeargfunc)deque_item, /* sq_item */
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	892 0, /* sq_slice */
36501 7fdc639bc5b4 Merge ssize_t branch. Martin v. Löwis <martin@v.loewis.de> parents: 36484 diff changeset	893 (ssizeobjargproc)deque_ass_item, /* sq_ass_item */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	894 };
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	895
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	896 /* deque object ********************************************************/
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	897
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	898 static PyObject deque_iter(dequeobject deque);
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	899 static PyObject deque_reviter(dequeobject deque);
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	900 PyDoc_STRVAR(reversed_doc,
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	901 "D.__reversed__() -- return a reverse iterator over the deque");
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	902
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	903 static PyMethodDef deque_methods[] = {
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	904 {"append", (PyCFunction)deque_append,
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	905 METH_O, append_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	906 {"appendleft", (PyCFunction)deque_appendleft,
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	907 METH_O, appendleft_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	908 {"clear", (PyCFunction)deque_clearmethod,
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	909 METH_NOARGS, clear_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	910 {"__copy__", (PyCFunction)deque_copy,
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	911 METH_NOARGS, copy_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	912 {"extend", (PyCFunction)deque_extend,
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	913 METH_O, extend_doc},
34771 fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	914 {"extendleft", (PyCFunction)deque_extendleft,
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	915 METH_O, extendleft_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	916 {"pop", (PyCFunction)deque_pop,
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	917 METH_NOARGS, pop_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	918 {"popleft", (PyCFunction)deque_popleft,
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	919 METH_NOARGS, popleft_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	920 {"__reduce__", (PyCFunction)deque_reduce,
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	921 METH_NOARGS, reduce_doc},
34771 fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	922 {"remove", (PyCFunction)deque_remove,
fb39f4eeaea4 Add a remove() method to collections.deque objects. Raymond Hettinger <python@rcn.com> parents: 33949 diff changeset	923 METH_O, remove_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	924 {"__reversed__", (PyCFunction)deque_reviter,
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	925 METH_NOARGS, reversed_doc},
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	926 {"rotate", (PyCFunction)deque_rotate,
31474 3ce4ffac27ab * Incorporate Skip's suggestions for documentation (explain the word deque Raymond Hettinger <python@rcn.com> parents: 31466 diff changeset	927 METH_VARARGS, rotate_doc},
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	928 {NULL, NULL} /* sentinel */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	929 };
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	930
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	931 PyDoc_STRVAR(deque_doc,
43466 73f49656420b Add __asdict__() to NamedTuple and refine the docs. Raymond Hettinger <python@rcn.com> parents: 43378 diff changeset	932 "deque(iterable[, maxlen]) --> deque object\n\
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	933 \n\
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	934 Build an ordered collection accessible from endpoints only.");
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	935
31605 2fed331de014 Make deque_type static so namespace is not polluted. Neal Norwitz <nnorwitz@gmail.com> parents: 31603 diff changeset	936 static PyTypeObject deque_type = {
42333 6620a510e9a9 PEP 3123: Provide forward compatibility with Python 3.0, while keeping Martin v. Löwis <martin@v.loewis.de> parents: 41019 diff changeset	937 PyVarObject_HEAD_INIT(NULL, 0)
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	938 "collections.deque", /* tp_name */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	939 sizeof(dequeobject), /* tp_basicsize */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	940 0, /* tp_itemsize */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	941 /* methods */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	942 (destructor)deque_dealloc, /* tp_dealloc */
37305 5e1b6f553763 Remove unnecessary casts from type object initializers. Georg Brandl <georg@python.org> parents: 36656 diff changeset	943 deque_tp_print, /* tp_print */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	944 0, /* tp_getattr */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	945 0, /* tp_setattr */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	946 0, /* tp_compare */
37305 5e1b6f553763 Remove unnecessary casts from type object initializers. Georg Brandl <georg@python.org> parents: 36656 diff changeset	947 deque_repr, /* tp_repr */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	948 0, /* tp_as_number */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	949 &deque_as_sequence, /* tp_as_sequence */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	950 0, /* tp_as_mapping */
47961 f9b80a820a25 Issue 2235: __hash__ is once again inherited by default, but inheritance can be blocked explicitly so that collections.Hashable remains meaningful Nick Coghlan <ncoghlan@gmail.com> parents: 47678 diff changeset	951 (hashfunc)PyObject_HashNotImplemented, /* tp_hash */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	952 0, /* tp_call */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	953 0, /* tp_str */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	954 PyObject_GenericGetAttr, /* tp_getattro */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	955 0, /* tp_setattro */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	956 0, /* tp_as_buffer */
32158 679e5c8effae Make sets and deques weak referencable. Raymond Hettinger <python@rcn.com> parents: 32119 diff changeset	957 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_BASETYPE \| Py_TPFLAGS_HAVE_GC \|
679e5c8effae Make sets and deques weak referencable. Raymond Hettinger <python@rcn.com> parents: 32119 diff changeset	958 Py_TPFLAGS_HAVE_WEAKREFS, /* tp_flags */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	959 deque_doc, /* tp_doc */
31607 8ecee8f47108 Replace left(), right(), and __reversed__() with the more general purpose Raymond Hettinger <python@rcn.com> parents: 31605 diff changeset	960 (traverseproc)deque_traverse, /* tp_traverse */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	961 (inquiry)deque_clear, /* tp_clear */
31603 15553a1b7a17 Improvements to collections.deque(): Raymond Hettinger <python@rcn.com> parents: 31595 diff changeset	962 (richcmpfunc)deque_richcompare, /* tp_richcompare */
32158 679e5c8effae Make sets and deques weak referencable. Raymond Hettinger <python@rcn.com> parents: 32119 diff changeset	963 offsetof(dequeobject, weakreflist), /* tp_weaklistoffset*/
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	964 (getiterfunc)deque_iter, /* tp_iter */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	965 0, /* tp_iternext */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	966 deque_methods, /* tp_methods */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	967 0, /* tp_members */
52119 b0911b5a002e For collections.deque() objects, expose the maxlen parameter as a read-only attribute. Raymond Hettinger <python@rcn.com> parents: 52117 diff changeset	968 deque_getset, /* tp_getset */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	969 0, /* tp_base */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	970 0, /* tp_dict */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	971 0, /* tp_descr_get */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	972 0, /* tp_descr_set */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	973 0, /* tp_dictoffset */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	974 (initproc)deque_init, /* tp_init */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	975 PyType_GenericAlloc, /* tp_alloc */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	976 deque_new, /* tp_new */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	977 PyObject_GC_Del, /* tp_free */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	978 };
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	979
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	980 /********************* Deque Iterator ************************/
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	981
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	982 typedef struct {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	983 PyObject_HEAD
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	984 Py_ssize_t index;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	985 block *b;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	986 dequeobject *deque;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	987 long state; /* state when the iterator is created */
48059 b68704457efe Finish-up the partial conversion from int to Py_ssize_t for deque indices and length. Raymond Hettinger <python@rcn.com> parents: 47961 diff changeset	988 Py_ssize_t counter; /* number of items remaining for iteration */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	989 } dequeiterobject;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	990
47678 a35da94e05fc Make more symbols static. Martin v. Löwis <martin@v.loewis.de> parents: 47527 diff changeset	991 static PyTypeObject dequeiter_type;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	992
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	993 static PyObject *
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	994 deque_iter(dequeobject *deque)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	995 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	996 dequeiterobject *it;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	997
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	998 it = PyObject_GC_New(dequeiterobject, &dequeiter_type);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	999 if (it == NULL)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1000 return NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1001 it->b = deque->leftblock;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1002 it->index = deque->leftindex;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1003 Py_INCREF(deque);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1004 it->deque = deque;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1005 it->state = deque->state;
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1006 it->counter = deque->len;
50522 ee9ced92843a Merged revisions 68133-68134,68141-68142,68145-68146,68148-68149,68159-68162,68166,68171-68174,68179,68195-68196,68210,68214-68215,68217-68222 via svnmerge from Georg Brandl <georg@python.org> parents: 50424 diff changeset	1007 PyObject_GC_Track(it);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1008 return (PyObject *)it;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1009 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1010
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1011 static int
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1012 dequeiter_traverse(dequeiterobject dio, visitproc visit, void arg)
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1013 {
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1014 Py_VISIT(dio->deque);
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1015 return 0;
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1016 }
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1017
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1018 static void
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1019 dequeiter_dealloc(dequeiterobject *dio)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1020 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1021 Py_XDECREF(dio->deque);
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1022 PyObject_GC_Del(dio);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1023 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1024
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1025 static PyObject *
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1026 dequeiter_next(dequeiterobject *it)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1027 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1028 PyObject *item;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1029
00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1030 if (it->deque->state != it->state) {
31908 058821d8aefd * Add unittests for iterators that report their length Raymond Hettinger <python@rcn.com> parents: 31685 diff changeset	1031 it->counter = 0;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1032 PyErr_SetString(PyExc_RuntimeError,
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1033 "deque mutated during iteration");
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1034 return NULL;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1035 }
40573 bd7e41de982f Fix zero-length corner case for iterating over a mutating deque. Raymond Hettinger <python@rcn.com> parents: 39475 diff changeset	1036 if (it->counter == 0)
bd7e41de982f Fix zero-length corner case for iterating over a mutating deque. Raymond Hettinger <python@rcn.com> parents: 39475 diff changeset	1037 return NULL;
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	1038 assert (!(it->b == it->deque->rightblock &&
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1039 it->index > it->deque->rightindex));
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1040
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1041 item = it->b->data[it->index];
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1042 it->index++;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1043 it->counter--;
00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1044 if (it->index == BLOCKLEN && it->counter > 0) {
00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1045 assert (it->b->rightlink != NULL);
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1046 it->b = it->b->rightlink;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1047 it->index = 0;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1048 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1049 Py_INCREF(item);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1050 return item;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1051 }
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1052
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1053 static PyObject *
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1054 dequeiter_len(dequeiterobject *it)
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1055 {
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1056 return PyInt_FromLong(it->counter);
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1057 }
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1058
36484 20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See: Armin Rigo <arigo@tunes.org> parents: 36324 diff changeset	1059 PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1060
e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1061 static PyMethodDef dequeiter_methods[] = {
36484 20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See: Armin Rigo <arigo@tunes.org> parents: 36324 diff changeset	1062 {"__length_hint__", (PyCFunction)dequeiter_len, METH_NOARGS, length_hint_doc},
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1063 {NULL, NULL} /* sentinel */
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1064 };
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1065
47678 a35da94e05fc Make more symbols static. Martin v. Löwis <martin@v.loewis.de> parents: 47527 diff changeset	1066 static PyTypeObject dequeiter_type = {
42333 6620a510e9a9 PEP 3123: Provide forward compatibility with Python 3.0, while keeping Martin v. Löwis <martin@v.loewis.de> parents: 41019 diff changeset	1067 PyVarObject_HEAD_INIT(NULL, 0)
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1068 "deque_iterator", /* tp_name */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1069 sizeof(dequeiterobject), /* tp_basicsize */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1070 0, /* tp_itemsize */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1071 /* methods */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1072 (destructor)dequeiter_dealloc, /* tp_dealloc */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1073 0, /* tp_print */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1074 0, /* tp_getattr */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1075 0, /* tp_setattr */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1076 0, /* tp_compare */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1077 0, /* tp_repr */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1078 0, /* tp_as_number */
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1079 0, /* tp_as_sequence */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1080 0, /* tp_as_mapping */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1081 0, /* tp_hash */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1082 0, /* tp_call */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1083 0, /* tp_str */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1084 PyObject_GenericGetAttr, /* tp_getattro */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1085 0, /* tp_setattro */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1086 0, /* tp_as_buffer */
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1087 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC,/* tp_flags */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1088 0, /* tp_doc */
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1089 (traverseproc)dequeiter_traverse, /* tp_traverse */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1090 0, /* tp_clear */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1091 0, /* tp_richcompare */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1092 0, /* tp_weaklistoffset */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1093 PyObject_SelfIter, /* tp_iter */
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1094 (iternextfunc)dequeiter_next, /* tp_iternext */
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1095 dequeiter_methods, /* tp_methods */
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1096 0,
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1097 };
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1098
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1099 /********************* Deque Reverse Iterator ************************/
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1100
47678 a35da94e05fc Make more symbols static. Martin v. Löwis <martin@v.loewis.de> parents: 47527 diff changeset	1101 static PyTypeObject dequereviter_type;
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1102
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1103 static PyObject *
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1104 deque_reviter(dequeobject *deque)
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1105 {
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1106 dequeiterobject *it;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1107
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1108 it = PyObject_GC_New(dequeiterobject, &dequereviter_type);
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1109 if (it == NULL)
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1110 return NULL;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1111 it->b = deque->rightblock;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1112 it->index = deque->rightindex;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1113 Py_INCREF(deque);
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1114 it->deque = deque;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1115 it->state = deque->state;
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1116 it->counter = deque->len;
50522 ee9ced92843a Merged revisions 68133-68134,68141-68142,68145-68146,68148-68149,68159-68162,68166,68171-68174,68179,68195-68196,68210,68214-68215,68217-68222 via svnmerge from Georg Brandl <georg@python.org> parents: 50424 diff changeset	1117 PyObject_GC_Track(it);
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1118 return (PyObject *)it;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1119 }
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1120
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1121 static PyObject *
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1122 dequereviter_next(dequeiterobject *it)
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1123 {
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1124 PyObject *item;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1125 if (it->counter == 0)
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1126 return NULL;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1127
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1128 if (it->deque->state != it->state) {
31908 058821d8aefd * Add unittests for iterators that report their length Raymond Hettinger <python@rcn.com> parents: 31685 diff changeset	1129 it->counter = 0;
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1130 PyErr_SetString(PyExc_RuntimeError,
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1131 "deque mutated during iteration");
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1132 return NULL;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1133 }
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	1134 assert (!(it->b == it->deque->leftblock &&
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1135 it->index < it->deque->leftindex));
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1136
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1137 item = it->b->data[it->index];
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1138 it->index--;
33644 00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1139 it->counter--;
00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1140 if (it->index == -1 && it->counter > 0) {
00c36e1bc50b * Bulletproof the method for detecting mutations during iteration. Raymond Hettinger <python@rcn.com> parents: 33643 diff changeset	1141 assert (it->b->leftlink != NULL);
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1142 it->b = it->b->leftlink;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1143 it->index = BLOCKLEN - 1;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1144 }
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1145 Py_INCREF(item);
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1146 return item;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1147 }
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1148
47678 a35da94e05fc Make more symbols static. Martin v. Löwis <martin@v.loewis.de> parents: 47527 diff changeset	1149 static PyTypeObject dequereviter_type = {
42333 6620a510e9a9 PEP 3123: Provide forward compatibility with Python 3.0, while keeping Martin v. Löwis <martin@v.loewis.de> parents: 41019 diff changeset	1150 PyVarObject_HEAD_INIT(NULL, 0)
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1151 "deque_reverse_iterator", /* tp_name */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1152 sizeof(dequeiterobject), /* tp_basicsize */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1153 0, /* tp_itemsize */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1154 /* methods */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1155 (destructor)dequeiter_dealloc, /* tp_dealloc */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1156 0, /* tp_print */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1157 0, /* tp_getattr */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1158 0, /* tp_setattr */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1159 0, /* tp_compare */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1160 0, /* tp_repr */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1161 0, /* tp_as_number */
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1162 0, /* tp_as_sequence */
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1163 0, /* tp_as_mapping */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1164 0, /* tp_hash */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1165 0, /* tp_call */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1166 0, /* tp_str */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1167 PyObject_GenericGetAttr, /* tp_getattro */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1168 0, /* tp_setattro */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1169 0, /* tp_as_buffer */
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1170 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_HAVE_GC,/* tp_flags */
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1171 0, /* tp_doc */
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49138 diff changeset	1172 (traverseproc)dequeiter_traverse, /* tp_traverse */
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1173 0, /* tp_clear */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1174 0, /* tp_richcompare */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1175 0, /* tp_weaklistoffset */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1176 PyObject_SelfIter, /* tp_iter */
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1177 (iternextfunc)dequereviter_next, /* tp_iternext */
35636 e22334b1da67 Convert iterator __len__() methods to a private API. Raymond Hettinger <python@rcn.com> parents: 35449 diff changeset	1178 dequeiter_methods, /* tp_methods */
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1179 0,
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1180 };
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1181
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1182 /* defaultdict type *********************************************************/
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1183
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1184 typedef struct {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1185 PyDictObject dict;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1186 PyObject *default_factory;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1187 } defdictobject;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1188
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1189 static PyTypeObject defdict_type; /* Forward */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1190
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1191 PyDoc_STRVAR(defdict_missing_doc,
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1192 "__missing__(key) # Called by __getitem__ for missing key; pseudo-code:\n\
41019 b0f26a7813c9 Fix another reincarnation of bug #1576657 in defaultdict. Georg Brandl <georg@python.org> parents: 40989 diff changeset	1193 if self.default_factory is None: raise KeyError((key,))\n\
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1194 self[key] = value = self.default_factory()\n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1195 return value\n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1196 ");
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1197
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1198 static PyObject *
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1199 defdict_missing(defdictobject dd, PyObject key)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1200 {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1201 PyObject *factory = dd->default_factory;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1202 PyObject *value;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1203 if (factory == NULL \|\| factory == Py_None) {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1204 /* XXX Call dict.__missing__(key) */
41019 b0f26a7813c9 Fix another reincarnation of bug #1576657 in defaultdict. Georg Brandl <georg@python.org> parents: 40989 diff changeset	1205 PyObject *tup;
b0f26a7813c9 Fix another reincarnation of bug #1576657 in defaultdict. Georg Brandl <georg@python.org> parents: 40989 diff changeset	1206 tup = PyTuple_Pack(1, key);
b0f26a7813c9 Fix another reincarnation of bug #1576657 in defaultdict. Georg Brandl <georg@python.org> parents: 40989 diff changeset	1207 if (!tup) return NULL;
b0f26a7813c9 Fix another reincarnation of bug #1576657 in defaultdict. Georg Brandl <georg@python.org> parents: 40989 diff changeset	1208 PyErr_SetObject(PyExc_KeyError, tup);
b0f26a7813c9 Fix another reincarnation of bug #1576657 in defaultdict. Georg Brandl <georg@python.org> parents: 40989 diff changeset	1209 Py_DECREF(tup);
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1210 return NULL;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1211 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1212 value = PyEval_CallObject(factory, NULL);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1213 if (value == NULL)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1214 return value;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1215 if (PyObject_SetItem((PyObject *)dd, key, value) < 0) {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1216 Py_DECREF(value);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1217 return NULL;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1218 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1219 return value;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1220 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1221
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1222 PyDoc_STRVAR(defdict_copy_doc, "D.copy() -> a shallow copy of D.");
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1223
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1224 static PyObject *
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1225 defdict_copy(defdictobject *dd)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1226 {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1227 /* This calls the object's class. That only works for subclasses
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1228 whose class constructor has the same signature. Subclasses that
45300 a47f5ffc0823 dict.copy() rises from the ashes. Revert r60687. Raymond Hettinger <python@rcn.com> parents: 45250 diff changeset	1229 define a different constructor signature must override copy().
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1230 */
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 44281 diff changeset	1231 return PyObject_CallFunctionObjArgs((PyObject*)Py_TYPE(dd),
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1232 dd->default_factory, dd, NULL);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1233 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1234
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1235 static PyObject *
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1236 defdict_reduce(defdictobject *dd)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1237 {
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	1238 /* __reduce__ must return a 5-tuple as follows:
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1239
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1240 - factory function
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1241 - tuple of args for the factory function
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1242 - additional state (here None)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1243 - sequence iterator (here None)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1244 - dictionary iterator (yielding successive (key, value) pairs
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1245
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1246 This API is used by pickle.py and copy.py.
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1247
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1248 For this to be useful with pickle.py, the default_factory
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1249 must be picklable; e.g., None, a built-in, or a global
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1250 function in a module or package.
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1251
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1252 Both shallow and deep copying are supported, but for deep
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1253 copying, the default_factory must be deep-copyable; e.g. None,
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1254 or a built-in (functions are not copyable at this time).
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1255
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1256 This only works for subclasses as long as their constructor
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1257 signature is compatible; the first argument must be the
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1258 optional default_factory, defaulting to None.
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1259 */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1260 PyObject *args;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1261 PyObject *items;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1262 PyObject *result;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1263 if (dd->default_factory == NULL \|\| dd->default_factory == Py_None)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1264 args = PyTuple_New(0);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1265 else
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1266 args = PyTuple_Pack(1, dd->default_factory);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1267 if (args == NULL)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1268 return NULL;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1269 items = PyObject_CallMethod((PyObject *)dd, "iteritems", "()");
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1270 if (items == NULL) {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1271 Py_DECREF(args);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1272 return NULL;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1273 }
44350 26384b8180c7 #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT. Macros for b/w compatibility are available. Christian Heimes <christian@cheimes.de> parents: 44281 diff changeset	1274 result = PyTuple_Pack(5, Py_TYPE(dd), args,
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1275 Py_None, Py_None, items);
39232 cd8f20d400c1 defdict_reduce(): Plug leaks. Tim Peters <tim.peters@gmail.com> parents: 37748 diff changeset	1276 Py_DECREF(items);
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1277 Py_DECREF(args);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1278 return result;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1279 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1280
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1281 static PyMethodDef defdict_methods[] = {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1282 {"__missing__", (PyCFunction)defdict_missing, METH_O,
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1283 defdict_missing_doc},
45300 a47f5ffc0823 dict.copy() rises from the ashes. Revert r60687. Raymond Hettinger <python@rcn.com> parents: 45250 diff changeset	1284 {"copy", (PyCFunction)defdict_copy, METH_NOARGS,
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1285 defdict_copy_doc},
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1286 {"__copy__", (PyCFunction)defdict_copy, METH_NOARGS,
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1287 defdict_copy_doc},
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1288 {"__reduce__", (PyCFunction)defdict_reduce, METH_NOARGS,
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1289 reduce_doc},
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1290 {NULL}
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1291 };
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1292
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1293 static PyMemberDef defdict_members[] = {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1294 {"default_factory", T_OBJECT,
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1295 offsetof(defdictobject, default_factory), 0,
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1296 PyDoc_STR("Factory for default value called by __missing__().")},
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1297 {NULL}
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1298 };
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1299
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1300 static void
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1301 defdict_dealloc(defdictobject *dd)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1302 {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1303 Py_CLEAR(dd->default_factory);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1304 PyDict_Type.tp_dealloc((PyObject *)dd);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1305 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1306
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1307 static int
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1308 defdict_print(defdictobject dd, FILE fp, int flags)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1309 {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1310 int sts;
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1311 Py_BEGIN_ALLOW_THREADS
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1312 fprintf(fp, "defaultdict(");
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1313 Py_END_ALLOW_THREADS
17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1314 if (dd->default_factory == NULL) {
17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1315 Py_BEGIN_ALLOW_THREADS
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1316 fprintf(fp, "None");
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1317 Py_END_ALLOW_THREADS
17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1318 } else {
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1319 PyObject_Print(dd->default_factory, fp, 0);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1320 }
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1321 Py_BEGIN_ALLOW_THREADS
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1322 fprintf(fp, ", ");
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1323 Py_END_ALLOW_THREADS
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1324 sts = PyDict_Type.tp_print((PyObject *)dd, fp, 0);
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1325 Py_BEGIN_ALLOW_THREADS
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1326 fprintf(fp, ")");
43475 17b07370a782 Restore BEGIN/END THREADS macros which were squashed in the previous checkin Raymond Hettinger <python@rcn.com> parents: 43469 diff changeset	1327 Py_END_ALLOW_THREADS
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1328 return sts;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1329 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1330
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1331 static PyObject *
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1332 defdict_repr(defdictobject *dd)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1333 {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1334 PyObject *defrepr;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1335 PyObject *baserepr;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1336 PyObject *result;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1337 baserepr = PyDict_Type.tp_repr((PyObject *)dd);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1338 if (baserepr == NULL)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1339 return NULL;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1340 if (dd->default_factory == NULL)
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1341 defrepr = PyString_FromString("None");
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1342 else
45231 e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1343 {
e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1344 int status = Py_ReprEnter(dd->default_factory);
e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1345 if (status != 0) {
e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1346 if (status < 0)
e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1347 return NULL;
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1348 defrepr = PyString_FromString("...");
45231 e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1349 }
e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1350 else
e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1351 defrepr = PyObject_Repr(dd->default_factory);
e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1352 Py_ReprLeave(dd->default_factory);
e94af0c7aa12 issue 2045: Infinite recursion when printing a subclass of defaultdict, Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 44350 diff changeset	1353 }
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1354 if (defrepr == NULL) {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1355 Py_DECREF(baserepr);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1356 return NULL;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1357 }
47527 52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1358 result = PyString_FromFormat("defaultdict(%s, %s)",
52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1359 PyString_AS_STRING(defrepr),
52294af4b663 This reverts r63675 based on the discussion in this thread: Gregory P. Smith <greg@mad-scientist.com> parents: 47294 diff changeset	1360 PyString_AS_STRING(baserepr));
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1361 Py_DECREF(defrepr);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1362 Py_DECREF(baserepr);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1363 return result;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1364 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1365
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1366 static int
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1367 defdict_traverse(PyObject self, visitproc visit, void arg)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1368 {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1369 Py_VISIT(((defdictobject *)self)->default_factory);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1370 return PyDict_Type.tp_traverse(self, visit, arg);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1371 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1372
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1373 static int
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1374 defdict_tp_clear(defdictobject *dd)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1375 {
37748 d1547426ab61 Use Py_CLEAR instead of in-place DECREF/XDECREF or custom macros, for Thomas Wouters <thomas@python.org> parents: 37470 diff changeset	1376 Py_CLEAR(dd->default_factory);
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1377 return PyDict_Type.tp_clear((PyObject *)dd);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1378 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1379
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1380 static int
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1381 defdict_init(PyObject self, PyObject args, PyObject *kwds)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1382 {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1383 defdictobject dd = (defdictobject )self;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1384 PyObject *olddefault = dd->default_factory;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1385 PyObject *newdefault = NULL;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1386 PyObject *newargs;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1387 int result;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1388 if (args == NULL \|\| !PyTuple_Check(args))
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1389 newargs = PyTuple_New(0);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1390 else {
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1391 Py_ssize_t n = PyTuple_GET_SIZE(args);
40760 2900c7564055 Check for a common user error with defaultdict(). Raymond Hettinger <python@rcn.com> parents: 40682 diff changeset	1392 if (n > 0) {
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1393 newdefault = PyTuple_GET_ITEM(args, 0);
40760 2900c7564055 Check for a common user error with defaultdict(). Raymond Hettinger <python@rcn.com> parents: 40682 diff changeset	1394 if (!PyCallable_Check(newdefault)) {
2900c7564055 Check for a common user error with defaultdict(). Raymond Hettinger <python@rcn.com> parents: 40682 diff changeset	1395 PyErr_SetString(PyExc_TypeError,
2900c7564055 Check for a common user error with defaultdict(). Raymond Hettinger <python@rcn.com> parents: 40682 diff changeset	1396 "first argument must be callable");
2900c7564055 Check for a common user error with defaultdict(). Raymond Hettinger <python@rcn.com> parents: 40682 diff changeset	1397 return -1;
2900c7564055 Check for a common user error with defaultdict(). Raymond Hettinger <python@rcn.com> parents: 40682 diff changeset	1398 }
2900c7564055 Check for a common user error with defaultdict(). Raymond Hettinger <python@rcn.com> parents: 40682 diff changeset	1399 }
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1400 newargs = PySequence_GetSlice(args, 1, n);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1401 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1402 if (newargs == NULL)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1403 return -1;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1404 Py_XINCREF(newdefault);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1405 dd->default_factory = newdefault;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1406 result = PyDict_Type.tp_init(self, newargs, kwds);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1407 Py_DECREF(newargs);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1408 Py_XDECREF(olddefault);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1409 return result;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1410 }
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1411
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1412 PyDoc_STRVAR(defdict_doc,
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1413 "defaultdict(default_factory) --> dict with default factory\n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1414 \n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1415 The default factory is called without arguments to produce\n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1416 a new value when a key is not present, in __getitem__ only.\n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1417 A defaultdict compares equal to a dict with the same items.\n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1418 ");
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1419
37470 9ecbce55a454 SF Bug #1448488 - make collectionsmodule build on Cygwin, using the same Anthony Baxter <anthonybaxter@gmail.com> parents: 37305 diff changeset	1420 /* See comment in xxsubtype.c */
9ecbce55a454 SF Bug #1448488 - make collectionsmodule build on Cygwin, using the same Anthony Baxter <anthonybaxter@gmail.com> parents: 37305 diff changeset	1421 #define DEFERRED_ADDRESS(ADDR) 0
9ecbce55a454 SF Bug #1448488 - make collectionsmodule build on Cygwin, using the same Anthony Baxter <anthonybaxter@gmail.com> parents: 37305 diff changeset	1422
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1423 static PyTypeObject defdict_type = {
42333 6620a510e9a9 PEP 3123: Provide forward compatibility with Python 3.0, while keeping Martin v. Löwis <martin@v.loewis.de> parents: 41019 diff changeset	1424 PyVarObject_HEAD_INIT(DEFERRED_ADDRESS(&PyType_Type), 0)
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1425 "collections.defaultdict", /* tp_name */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1426 sizeof(defdictobject), /* tp_basicsize */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1427 0, /* tp_itemsize */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1428 /* methods */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1429 (destructor)defdict_dealloc, /* tp_dealloc */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1430 (printfunc)defdict_print, /* tp_print */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1431 0, /* tp_getattr */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1432 0, /* tp_setattr */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1433 0, /* tp_compare */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1434 (reprfunc)defdict_repr, /* tp_repr */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1435 0, /* tp_as_number */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1436 0, /* tp_as_sequence */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1437 0, /* tp_as_mapping */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1438 0, /* tp_hash */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1439 0, /* tp_call */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1440 0, /* tp_str */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1441 PyObject_GenericGetAttr, /* tp_getattro */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1442 0, /* tp_setattro */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1443 0, /* tp_as_buffer */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1444 Py_TPFLAGS_DEFAULT \| Py_TPFLAGS_BASETYPE \| Py_TPFLAGS_HAVE_GC \|
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1445 Py_TPFLAGS_HAVE_WEAKREFS, /* tp_flags */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1446 defdict_doc, /* tp_doc */
37305 5e1b6f553763 Remove unnecessary casts from type object initializers. Georg Brandl <georg@python.org> parents: 36656 diff changeset	1447 defdict_traverse, /* tp_traverse */
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1448 (inquiry)defdict_tp_clear, /* tp_clear */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1449 0, /* tp_richcompare */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1450 0, /* tp_weaklistoffset*/
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1451 0, /* tp_iter */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1452 0, /* tp_iternext */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1453 defdict_methods, /* tp_methods */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1454 defdict_members, /* tp_members */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1455 0, /* tp_getset */
37470 9ecbce55a454 SF Bug #1448488 - make collectionsmodule build on Cygwin, using the same Anthony Baxter <anthonybaxter@gmail.com> parents: 37305 diff changeset	1456 DEFERRED_ADDRESS(&PyDict_Type), /* tp_base */
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1457 0, /* tp_dict */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1458 0, /* tp_descr_get */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1459 0, /* tp_descr_set */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1460 0, /* tp_dictoffset */
37305 5e1b6f553763 Remove unnecessary casts from type object initializers. Georg Brandl <georg@python.org> parents: 36656 diff changeset	1461 defdict_init, /* tp_init */
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1462 PyType_GenericAlloc, /* tp_alloc */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1463 0, /* tp_new */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1464 PyObject_GC_Del, /* tp_free */
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1465 };
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1466
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1467 /* module level code ********************************************************/
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1468
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1469 PyDoc_STRVAR(module_doc,
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1470 "High performance data structures.\n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1471 - deque: ordered collection accessible from endpoints only\n\
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1472 - defaultdict: dict subclass with a default value factory\n\
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1473 ");
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1474
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1475 PyMODINIT_FUNC
40989 4087c0ec733b Prepare collections module for pure python code entries. Raymond Hettinger <python@rcn.com> parents: 40760 diff changeset	1476 init_collections(void)
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1477 {
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1478 PyObject *m;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1479
40989 4087c0ec733b Prepare collections module for pure python code entries. Raymond Hettinger <python@rcn.com> parents: 40760 diff changeset	1480 m = Py_InitModule3("_collections", NULL, module_doc);
36324 1af7f719ed28 Check return result from Py_InitModule(). This API can fail. Neal Norwitz <nnorwitz@gmail.com>* parents: 35636 diff changeset	1481 if (m == NULL)
1af7f719ed28 Check return result from Py_InitModule(). This API can fail. Neal Norwitz <nnorwitz@gmail.com>* parents: 35636 diff changeset	1482 return;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1483
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1484 if (PyType_Ready(&deque_type) < 0)
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1485 return;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1486 Py_INCREF(&deque_type);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1487 PyModule_AddObject(m, "deque", (PyObject *)&deque_type);
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1488
37470 9ecbce55a454 SF Bug #1448488 - make collectionsmodule build on Cygwin, using the same Anthony Baxter <anthonybaxter@gmail.com> parents: 37305 diff changeset	1489 defdict_type.tp_base = &PyDict_Type;
36656 92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1490 if (PyType_Ready(&defdict_type) < 0)
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1491 return;
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1492 Py_INCREF(&defdict_type);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1493 PyModule_AddObject(m, "defaultdict", (PyObject *)&defdict_type);
92ce8bb8b12a - Patch 1433928: Guido van Rossum <guido@python.org> parents: 36518 diff changeset	1494
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1495 if (PyType_Ready(&dequeiter_type) < 0)
33634 6bd4a1056716 Trimmed trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32752 diff changeset	1496 return;
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1497
31685 aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1498 if (PyType_Ready(&dequereviter_type) < 0)
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1499 return;
aafe5fef58ba Improve deque iteration. Raymond Hettinger <python@rcn.com> parents: 31615 diff changeset	1500
31436 63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1501 return;
63fa60f2d61c * Move collections.deque() in from the sandbox Raymond Hettinger <python@rcn.com> parents: diff changeset	1502 }

Mercurial > cpython-lru_cache-weakref

annotate Modules/_collectionsmodule.c @ 54294:dba767bc3155 legacy-trunk