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annotate Objects/tupleobject.c @ 42477:e7fd327e0c19

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Kill all uses and definitions of tp_print under Objects/. (Others will follow.) Finally kill intobject.c, which was #ifdef'ed out a long time ago.
author Guido van Rossum <guido@python.org>
date Tue, 07 Aug 2007 19:51:00 +0000
parents e70cdce0e8b2
children 27f0289b6835
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 /* Tuple object implementation */
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3
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4 #include "Python.h"
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5
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6 /* Speed optimization to avoid frequent malloc/free of small tuples */
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7 #ifndef MAXSAVESIZE
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8 #define MAXSAVESIZE 20 /* Largest tuple to save on free list */
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9 #endif
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10 #ifndef MAXSAVEDTUPLES
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11 #define MAXSAVEDTUPLES 2000 /* Maximum number of tuples of each size to save */
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12 #endif
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13
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14 #if MAXSAVESIZE > 0
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15 /* Entries 1 up to MAXSAVESIZE are free lists, entry 0 is the empty
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16 tuple () of which at most one instance will be allocated.
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17 */
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18 static PyTupleObject *free_tuples[MAXSAVESIZE];
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19 static int num_free_tuples[MAXSAVESIZE];
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20 #endif
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21 #ifdef COUNT_ALLOCS
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22 int fast_tuple_allocs;
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23 int tuple_zero_allocs;
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24 #endif
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25
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26 PyObject *
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27 PyTuple_New(register Py_ssize_t size)
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28 {
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29 register PyTupleObject *op;
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30 Py_ssize_t i;
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31 if (size < 0) {
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32 PyErr_BadInternalCall();
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33 return NULL;
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34 }
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35 #if MAXSAVESIZE > 0
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36 if (size == 0 && free_tuples[0]) {
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37 op = free_tuples[0];
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38 Py_INCREF(op);
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39 #ifdef COUNT_ALLOCS
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40 tuple_zero_allocs++;
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41 #endif
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42 return (PyObject *) op;
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43 }
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44 if (size < MAXSAVESIZE && (op = free_tuples[size]) != NULL) {
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45 free_tuples[size] = (PyTupleObject *) op->ob_item[0];
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46 num_free_tuples[size]--;
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47 #ifdef COUNT_ALLOCS
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48 fast_tuple_allocs++;
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49 #endif
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50 /* Inline PyObject_InitVar */
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51 #ifdef Py_TRACE_REFS
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52 Py_Size(op) = size;
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53 Py_Type(op) = &PyTuple_Type;
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54 #endif
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55 _Py_NewReference((PyObject *)op);
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56 }
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57 else
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58 #endif
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59 {
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60 Py_ssize_t nbytes = size * sizeof(PyObject *);
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61 /* Check for overflow */
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62 if (nbytes / sizeof(PyObject *) != (size_t)size ||
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63 (nbytes += sizeof(PyTupleObject) - sizeof(PyObject *))
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64 <= 0)
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65 {
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66 return PyErr_NoMemory();
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67 }
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68 op = PyObject_GC_NewVar(PyTupleObject, &PyTuple_Type, size);
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69 if (op == NULL)
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70 return NULL;
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71 }
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72 for (i=0; i < size; i++)
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73 op->ob_item[i] = NULL;
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74 #if MAXSAVESIZE > 0
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75 if (size == 0) {
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76 free_tuples[0] = op;
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77 ++num_free_tuples[0];
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78 Py_INCREF(op); /* extra INCREF so that this is never freed */
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79 }
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80 #endif
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81 _PyObject_GC_TRACK(op);
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82 return (PyObject *) op;
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83 }
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84
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85 Py_ssize_t
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86 PyTuple_Size(register PyObject *op)
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87 {
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88 if (!PyTuple_Check(op)) {
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89 PyErr_BadInternalCall();
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90 return -1;
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91 }
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92 else
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93 return Py_Size(op);
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94 }
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95
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96 PyObject *
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97 PyTuple_GetItem(register PyObject *op, register Py_ssize_t i)
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98 {
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99 if (!PyTuple_Check(op)) {
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100 PyErr_BadInternalCall();
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101 return NULL;
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102 }
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103 if (i < 0 || i >= Py_Size(op)) {
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104 PyErr_SetString(PyExc_IndexError, "tuple index out of range");
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105 return NULL;
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106 }
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107 return ((PyTupleObject *)op) -> ob_item[i];
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108 }
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109
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110 int
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111 PyTuple_SetItem(register PyObject *op, register Py_ssize_t i, PyObject *newitem)
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112 {
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113 register PyObject *olditem;
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114 register PyObject **p;
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115 if (!PyTuple_Check(op) || op->ob_refcnt != 1) {
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116 Py_XDECREF(newitem);
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117 PyErr_BadInternalCall();
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118 return -1;
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119 }
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120 if (i < 0 || i >= Py_Size(op)) {
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121 Py_XDECREF(newitem);
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122 PyErr_SetString(PyExc_IndexError,
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123 "tuple assignment index out of range");
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124 return -1;
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125 }
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126 p = ((PyTupleObject *)op) -> ob_item + i;
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127 olditem = *p;
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128 *p = newitem;
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129 Py_XDECREF(olditem);
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130 return 0;
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131 }
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132
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133 PyObject *
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134 PyTuple_Pack(Py_ssize_t n, ...)
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135 {
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136 Py_ssize_t i;
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parents: 29008
diff changeset
137 PyObject *o;
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
138 PyObject *result;
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
139 PyObject **items;
30682
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
140 va_list vargs;
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
141
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
142 va_start(vargs, n);
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
143 result = PyTuple_New(n);
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
144 if (result == NULL)
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
145 return NULL;
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
146 items = ((PyTupleObject *)result)->ob_item;
30682
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
147 for (i = 0; i < n; i++) {
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
148 o = va_arg(vargs, PyObject *);
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
149 Py_INCREF(o);
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
150 items[i] = o;
30682
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
151 }
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
152 va_end(vargs);
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
153 return result;
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
154 }
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
155
473f4e2959a8 Extended tuple's C API to include a new function, PyTuple_Pack() that is
Raymond Hettinger <python@rcn.com>
parents: 29008
diff changeset
156
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
157 /* Methods */
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
158
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
159 static void
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
160 tupledealloc(register PyTupleObject *op)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
161 {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
162 register Py_ssize_t i;
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
163 register Py_ssize_t len = Py_Size(op);
22626
0446eeb787b7 Backport to 2.2.1:
Guido van Rossum <guido@python.org>
parents: 21293
diff changeset
164 PyObject_GC_UnTrack(op);
11999
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11673
diff changeset
165 Py_TRASHCAN_SAFE_BEGIN(op)
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
166 if (len > 0) {
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
167 i = len;
31759
be5d2a07bc26 Restored revision 2.87.
Armin Rigo <arigo@tunes.org>
parents: 31756
diff changeset
168 while (--i >= 0)
be5d2a07bc26 Restored revision 2.87.
Armin Rigo <arigo@tunes.org>
parents: 31756
diff changeset
169 Py_XDECREF(op->ob_item[i]);
1352
4d1a15fc4748 intobject.c: Save references to small integers, so that they can be
Sjoerd Mullender <sjoerd@acm.org>
parents: 1347
diff changeset
170 #if MAXSAVESIZE > 0
19612
c396afef1aa9 More stuff discovered while writing the simplest of testcases:
Guido van Rossum <guido@python.org>
parents: 19592
diff changeset
171 if (len < MAXSAVESIZE &&
c396afef1aa9 More stuff discovered while writing the simplest of testcases:
Guido van Rossum <guido@python.org>
parents: 19592
diff changeset
172 num_free_tuples[len] < MAXSAVEDTUPLES &&
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
173 Py_Type(op) == &PyTuple_Type)
19612
c396afef1aa9 More stuff discovered while writing the simplest of testcases:
Guido van Rossum <guido@python.org>
parents: 19592
diff changeset
174 {
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
175 op->ob_item[0] = (PyObject *) free_tuples[len];
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
176 num_free_tuples[len]++;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
177 free_tuples[len] = op;
11999
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11673
diff changeset
178 goto done; /* return */
8559
92267838feb9 Slight rearrangement of some code to make it faster, by Vladimir
Guido van Rossum <guido@python.org>
parents: 6083
diff changeset
179 }
1352
4d1a15fc4748 intobject.c: Save references to small integers, so that they can be
Sjoerd Mullender <sjoerd@acm.org>
parents: 1347
diff changeset
180 #endif
8559
92267838feb9 Slight rearrangement of some code to make it faster, by Vladimir
Guido van Rossum <guido@python.org>
parents: 6083
diff changeset
181 }
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
182 Py_Type(op)->tp_free((PyObject *)op);
11999
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11673
diff changeset
183 done:
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11673
diff changeset
184 Py_TRASHCAN_SAFE_END(op)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
185 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
186
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
187 static PyObject *
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
188 tuplerepr(PyTupleObject *v)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
189 {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
190 Py_ssize_t i, n;
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
191 PyObject *s, *temp;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
192 PyObject *pieces, *result = NULL;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
193
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
194 n = Py_Size(v);
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
195 if (n == 0)
41769
b29d71d43c80 Add functions PyUnicode_Append() and PyUnicode_AppendAndDel() that mirror
Walter Dörwald <walter@livinglogic.de>
parents: 40909
diff changeset
196 return PyUnicode_FromString("()");
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
197
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
198 pieces = PyTuple_New(n);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
199 if (pieces == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
200 return NULL;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
201
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
202 /* Do repr() on each element. */
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
203 for (i = 0; i < n; ++i) {
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
204 s = PyObject_Repr(v->ob_item[i]);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
205 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
206 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
207 PyTuple_SET_ITEM(pieces, i, s);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
208 }
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
209
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
210 /* Add "()" decorations to the first and last items. */
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
211 assert(n > 0);
41769
b29d71d43c80 Add functions PyUnicode_Append() and PyUnicode_AppendAndDel() that mirror
Walter Dörwald <walter@livinglogic.de>
parents: 40909
diff changeset
212 s = PyUnicode_FromString("(");
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
213 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
214 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
215 temp = PyTuple_GET_ITEM(pieces, 0);
41769
b29d71d43c80 Add functions PyUnicode_Append() and PyUnicode_AppendAndDel() that mirror
Walter Dörwald <walter@livinglogic.de>
parents: 40909
diff changeset
216 PyUnicode_AppendAndDel(&s, temp);
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
217 PyTuple_SET_ITEM(pieces, 0, s);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
218 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
219 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
220
41769
b29d71d43c80 Add functions PyUnicode_Append() and PyUnicode_AppendAndDel() that mirror
Walter Dörwald <walter@livinglogic.de>
parents: 40909
diff changeset
221 s = PyUnicode_FromString(n == 1 ? ",)" : ")");
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
222 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
223 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
224 temp = PyTuple_GET_ITEM(pieces, n-1);
41769
b29d71d43c80 Add functions PyUnicode_Append() and PyUnicode_AppendAndDel() that mirror
Walter Dörwald <walter@livinglogic.de>
parents: 40909
diff changeset
225 PyUnicode_AppendAndDel(&temp, s);
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
226 PyTuple_SET_ITEM(pieces, n-1, temp);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
227 if (temp == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
228 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
229
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
230 /* Paste them all together with ", " between. */
41769
b29d71d43c80 Add functions PyUnicode_Append() and PyUnicode_AppendAndDel() that mirror
Walter Dörwald <walter@livinglogic.de>
parents: 40909
diff changeset
231 s = PyUnicode_FromString(", ");
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
232 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
233 goto Done;
41769
b29d71d43c80 Add functions PyUnicode_Append() and PyUnicode_AppendAndDel() that mirror
Walter Dörwald <walter@livinglogic.de>
parents: 40909
diff changeset
234 result = PyUnicode_Join(s, pieces);
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
235 Py_DECREF(s);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
236
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
237 Done:
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
238 Py_DECREF(pieces);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
239 return result;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
240 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
241
32242
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
242 /* The addend 82520, was selected from the range(0, 1000000) for
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
243 generating the greatest number of prime multipliers for tuples
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
244 upto length eight:
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
245
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
246 1082527, 1165049, 1082531, 1165057, 1247581, 1330103, 1082533,
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
247 1330111, 1412633, 1165069, 1247599, 1495177, 1577699
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
248 */
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
249
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
250 static long
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
251 tuplehash(PyTupleObject *v)
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
252 {
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
253 register long x, y;
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
254 register Py_ssize_t len = Py_Size(v);
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
255 register PyObject **p;
32171
97b908a9971a SF bug #942952: Weakness in tuple hash
Raymond Hettinger <python@rcn.com>
parents: 31759
diff changeset
256 long mult = 1000003L;
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
257 x = 0x345678L;
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
258 p = v->ob_item;
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
259 while (--len >= 0) {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
260 y = PyObject_Hash(*p++);
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
261 if (y == -1)
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
262 return -1;
32171
97b908a9971a SF bug #942952: Weakness in tuple hash
Raymond Hettinger <python@rcn.com>
parents: 31759
diff changeset
263 x = (x ^ y) * mult;
36519
d6d415df0df0 Use Py_ssize_t for counts and sizes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36501
diff changeset
264 /* the cast might truncate len; that doesn't change hash stability */
d6d415df0df0 Use Py_ssize_t for counts and sizes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36501
diff changeset
265 mult += (long)(82520L + len + len);
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
266 }
32318
418a0c6bdc7d Add a final permutation step to the tuple hash function.
Raymond Hettinger <python@rcn.com>
parents: 32242
diff changeset
267 x += 97531L;
1257
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268 if (x == -1)
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269 x = -2;
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270 return x;
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271 }
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272
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273 static Py_ssize_t
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274 tuplelength(PyTupleObject *a)
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275 {
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276 return Py_Size(a);
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277 }
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278
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279 static int
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280 tuplecontains(PyTupleObject *a, PyObject *el)
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281 {
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282 Py_ssize_t i;
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283 int cmp;
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284
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285 for (i = 0, cmp = 0 ; cmp == 0 && i < Py_Size(a); ++i)
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286 cmp = PyObject_RichCompareBool(el, PyTuple_GET_ITEM(a, i),
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287 Py_EQ);
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288 return cmp;
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289 }
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290
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291 static PyObject *
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292 tupleitem(register PyTupleObject *a, register Py_ssize_t i)
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293 {
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294 if (i < 0 || i >= Py_Size(a)) {
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295 PyErr_SetString(PyExc_IndexError, "tuple index out of range");
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296 return NULL;
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297 }
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298 Py_INCREF(a->ob_item[i]);
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299 return a->ob_item[i];
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300 }
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301
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302 static PyObject *
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303 tupleslice(register PyTupleObject *a, register Py_ssize_t ilow,
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304 register Py_ssize_t ihigh)
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305 {
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306 register PyTupleObject *np;
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307 PyObject **src, **dest;
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308 register Py_ssize_t i;
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309 Py_ssize_t len;
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310 if (ilow < 0)
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311 ilow = 0;
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312 if (ihigh > Py_Size(a))
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313 ihigh = Py_Size(a);
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314 if (ihigh < ilow)
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315 ihigh = ilow;
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316 if (ilow == 0 && ihigh == Py_Size(a) && PyTuple_CheckExact(a)) {
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317 Py_INCREF(a);
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318 return (PyObject *)a;
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319 }
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320 len = ihigh - ilow;
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321 np = (PyTupleObject *)PyTuple_New(len);
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322 if (np == NULL)
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323 return NULL;
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324 src = a->ob_item + ilow;
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325 dest = np->ob_item;
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326 for (i = 0; i < len; i++) {
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327 PyObject *v = src[i];
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328 Py_INCREF(v);
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329 dest[i] = v;
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330 }
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331 return (PyObject *)np;
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332 }
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333
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334 PyObject *
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335 PyTuple_GetSlice(PyObject *op, Py_ssize_t i, Py_ssize_t j)
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336 {
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337 if (op == NULL || !PyTuple_Check(op)) {
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338 PyErr_BadInternalCall();
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339 return NULL;
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340 }
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341 return tupleslice((PyTupleObject *)op, i, j);
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342 }
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343
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344 static PyObject *
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345 tupleconcat(register PyTupleObject *a, register PyObject *bb)
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346 {
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347 register Py_ssize_t size;
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348 register Py_ssize_t i;
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349 PyObject **src, **dest;
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350 PyTupleObject *np;
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351 if (!PyTuple_Check(bb)) {
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352 PyErr_Format(PyExc_TypeError,
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353 "can only concatenate tuple (not \"%.200s\") to tuple",
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354 Py_Type(bb)->tp_name);
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355 return NULL;
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356 }
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357 #define b ((PyTupleObject *)bb)
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358 size = Py_Size(a) + Py_Size(b);
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359 if (size < 0)
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360 return PyErr_NoMemory();
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361 np = (PyTupleObject *) PyTuple_New(size);
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362 if (np == NULL) {
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363 return NULL;
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364 }
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365 src = a->ob_item;
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366 dest = np->ob_item;
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367 for (i = 0; i < Py_Size(a); i++) {
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368 PyObject *v = src[i];
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369 Py_INCREF(v);
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370 dest[i] = v;
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371 }
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372 src = b->ob_item;
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373 dest = np->ob_item + Py_Size(a);
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374 for (i = 0; i < Py_Size(b); i++) {
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375 PyObject *v = src[i];
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376 Py_INCREF(v);
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377 dest[i] = v;
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378 }
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379 return (PyObject *)np;
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380 #undef b
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381 }
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382
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383 static PyObject *
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384 tuplerepeat(PyTupleObject *a, Py_ssize_t n)
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385 {
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386 Py_ssize_t i, j;
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387 Py_ssize_t size;
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388 PyTupleObject *np;
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389 PyObject **p, **items;
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390 if (n < 0)
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391 n = 0;
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392 if (Py_Size(a) == 0 || n == 1) {
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393 if (PyTuple_CheckExact(a)) {
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394 /* Since tuples are immutable, we can return a shared
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395 copy in this case */
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396 Py_INCREF(a);
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397 return (PyObject *)a;
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398 }
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399 if (Py_Size(a) == 0)
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400 return PyTuple_New(0);
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401 }
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402 size = Py_Size(a) * n;
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403 if (size/Py_Size(a) != n)
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404 return PyErr_NoMemory();
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405 np = (PyTupleObject *) PyTuple_New(size);
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parents: 145
diff changeset
406 if (np == NULL)
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
407 return NULL;
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
408 p = np->ob_item;
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
409 items = a->ob_item;
258
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
410 for (i = 0; i < n; i++) {
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
411 for (j = 0; j < Py_Size(a); j++) {
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
412 *p = items[j];
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
413 Py_INCREF(*p);
258
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
414 p++;
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
415 }
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
416 }
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
417 return (PyObject *) np;
258
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
418 }
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
419
12990
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
420 static int
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
421 tupletraverse(PyTupleObject *o, visitproc visit, void *arg)
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
422 {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
423 Py_ssize_t i;
12990
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
424
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
425 for (i = Py_Size(o); --i >= 0; )
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
426 Py_VISIT(o->ob_item[i]);
12990
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
427 return 0;
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
428 }
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
429
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
430 static PyObject *
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
431 tuplerichcompare(PyObject *v, PyObject *w, int op)
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
432 {
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
433 PyTupleObject *vt, *wt;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
434 Py_ssize_t i;
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
435 Py_ssize_t vlen, wlen;
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
436
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
437 if (!PyTuple_Check(v) || !PyTuple_Check(w)) {
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
438 Py_INCREF(Py_NotImplemented);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
439 return Py_NotImplemented;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
440 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
441
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
442 vt = (PyTupleObject *)v;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
443 wt = (PyTupleObject *)w;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
444
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
445 vlen = Py_Size(vt);
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
446 wlen = Py_Size(wt);
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
447
17841
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
448 /* Note: the corresponding code for lists has an "early out" test
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
449 * here when op is EQ or NE and the lengths differ. That pays there,
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
450 * but Tim was unable to find any real code where EQ/NE tuple
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
451 * compares don't have the same length, so testing for it here would
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
452 * have cost without benefit.
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
453 */
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
454
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
455 /* Search for the first index where items are different.
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
456 * Note that because tuples are immutable, it's safe to reuse
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
457 * vlen and wlen across the comparison calls.
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
458 */
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
459 for (i = 0; i < vlen && i < wlen; i++) {
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
460 int k = PyObject_RichCompareBool(vt->ob_item[i],
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
461 wt->ob_item[i], Py_EQ);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
462 if (k < 0)
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
463 return NULL;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
464 if (!k)
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
465 break;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
466 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
467
17841
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
468 if (i >= vlen || i >= wlen) {
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
469 /* No more items to compare -- compare sizes */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
470 int cmp;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
471 PyObject *res;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
472 switch (op) {
17841
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
473 case Py_LT: cmp = vlen < wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
474 case Py_LE: cmp = vlen <= wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
475 case Py_EQ: cmp = vlen == wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
476 case Py_NE: cmp = vlen != wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
477 case Py_GT: cmp = vlen > wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
478 case Py_GE: cmp = vlen >= wlen; break;
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
479 default: return NULL; /* cannot happen */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
480 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
481 if (cmp)
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
482 res = Py_True;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
483 else
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
484 res = Py_False;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
485 Py_INCREF(res);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
486 return res;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
487 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
488
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
489 /* We have an item that differs -- shortcuts for EQ/NE */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
490 if (op == Py_EQ) {
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
491 Py_INCREF(Py_False);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
492 return Py_False;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
493 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
494 if (op == Py_NE) {
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
495 Py_INCREF(Py_True);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
496 return Py_True;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
497 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
498
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
499 /* Compare the final item again using the proper operator */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
500 return PyObject_RichCompare(vt->ob_item[i], wt->ob_item[i], op);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
501 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
502
24280
1598a1e473e2 staticforward bites the dust.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 24184
diff changeset
503 static PyObject *
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
504 tuple_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds);
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
505
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
506 static PyObject *
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
507 tuple_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
508 {
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
509 PyObject *arg = NULL;
36675
dba6494735d0 Revert backwards-incompatible const changes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36519
diff changeset
510 static char *kwlist[] = {"sequence", 0};
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
511
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
512 if (type != &PyTuple_Type)
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
513 return tuple_subtype_new(type, args, kwds);
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
514 if (!PyArg_ParseTupleAndKeywords(args, kwds, "|O:tuple", kwlist, &arg))
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
515 return NULL;
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
516
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
517 if (arg == NULL)
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
518 return PyTuple_New(0);
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
519 else
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
520 return PySequence_Tuple(arg);
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
521 }
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
522
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
523 static PyObject *
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
524 tuple_subtype_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
525 {
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
526 PyObject *tmp, *newobj, *item;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
527 Py_ssize_t i, n;
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
528
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
529 assert(PyType_IsSubtype(type, &PyTuple_Type));
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
530 tmp = tuple_new(&PyTuple_Type, args, kwds);
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
531 if (tmp == NULL)
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
532 return NULL;
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
533 assert(PyTuple_Check(tmp));
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
534 newobj = type->tp_alloc(type, n = PyTuple_GET_SIZE(tmp));
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
535 if (newobj == NULL)
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
536 return NULL;
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
537 for (i = 0; i < n; i++) {
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
538 item = PyTuple_GET_ITEM(tmp, i);
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
539 Py_INCREF(item);
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
540 PyTuple_SET_ITEM(newobj, i, item);
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
541 }
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
542 Py_DECREF(tmp);
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
543 return newobj;
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
544 }
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
545
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23778
diff changeset
546 PyDoc_STRVAR(tuple_doc,
19657
937965516b54 Rewrite the tuple() docstring to parallel the list() docstring.
Tim Peters <tim.peters@gmail.com>
parents: 19656
diff changeset
547 "tuple() -> an empty tuple\n"
937965516b54 Rewrite the tuple() docstring to parallel the list() docstring.
Tim Peters <tim.peters@gmail.com>
parents: 19656
diff changeset
548 "tuple(sequence) -> tuple initialized from sequence's items\n"
937965516b54 Rewrite the tuple() docstring to parallel the list() docstring.
Tim Peters <tim.peters@gmail.com>
parents: 19656
diff changeset
549 "\n"
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23778
diff changeset
550 "If the argument is a tuple, the return value is the same object.");
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
551
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
552 static PySequenceMethods tuple_as_sequence = {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
553 (lenfunc)tuplelength, /* sq_length */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
554 (binaryfunc)tupleconcat, /* sq_concat */
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
555 (ssizeargfunc)tuplerepeat, /* sq_repeat */
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
556 (ssizeargfunc)tupleitem, /* sq_item */
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
557 (ssizessizeargfunc)tupleslice, /* sq_slice */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
558 0, /* sq_ass_item */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
559 0, /* sq_ass_slice */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
560 (objobjproc)tuplecontains, /* sq_contains */
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
561 };
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
562
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
563 static PyObject*
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
564 tuplesubscript(PyTupleObject* self, PyObject* item)
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
565 {
39610
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change,
Thomas Wouters <thomas@python.org>
parents: 39222
diff changeset
566 if (PyIndex_Check(item)) {
3674f20ac781 Merge current trunk into p3yk. This includes the PyNumber_Index API change,
Thomas Wouters <thomas@python.org>
parents: 39222
diff changeset
567 Py_ssize_t i = PyNumber_AsSsize_t(item, PyExc_IndexError);
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
568 if (i == -1 && PyErr_Occurred())
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
569 return NULL;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
570 if (i < 0)
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
571 i += PyTuple_GET_SIZE(self);
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
572 return tupleitem(self, i);
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
573 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
574 else if (PySlice_Check(item)) {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
575 Py_ssize_t start, stop, step, slicelength, cur, i;
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
576 PyObject* result;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
577 PyObject* it;
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
578 PyObject **src, **dest;
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
579
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
580 if (PySlice_GetIndicesEx((PySliceObject*)item,
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
581 PyTuple_GET_SIZE(self),
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
582 &start, &stop, &step, &slicelength) < 0) {
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
583 return NULL;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
584 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
585
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
586 if (slicelength <= 0) {
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
587 return PyTuple_New(0);
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
588 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
589 else {
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
590 result = PyTuple_New(slicelength);
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
591 if (!result) return NULL;
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
592
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
593 src = self->ob_item;
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
594 dest = ((PyTupleObject *)result)->ob_item;
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
595 for (cur = start, i = 0; i < slicelength;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
596 cur += step, i++) {
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
597 it = src[cur];
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
598 Py_INCREF(it);
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
599 dest[i] = it;
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
600 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
601
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
602 return result;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
603 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
604 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
605 else {
40450
cc992d75d5b3 Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents: 39610
diff changeset
606 PyErr_Format(PyExc_TypeError,
cc992d75d5b3 Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents: 39610
diff changeset
607 "tuple indices must be integers, not %.200s",
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
608 Py_Type(item)->tp_name);
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
609 return NULL;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
610 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
611 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
612
27521
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
613 static PyObject *
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
614 tuple_getnewargs(PyTupleObject *v)
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
615 {
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
616 return Py_BuildValue("(N)", tupleslice(v, 0, Py_Size(v)));
27521
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
617
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
618 }
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
619
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
620 static PyMethodDef tuple_methods[] = {
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
621 {"__getnewargs__", (PyCFunction)tuple_getnewargs, METH_NOARGS},
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
622 {NULL, NULL} /* sentinel */
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
623 };
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
624
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
625 static PyMappingMethods tuple_as_mapping = {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
626 (lenfunc)tuplelength,
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
627 (binaryfunc)tuplesubscript,
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
628 0
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
629 };
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
630
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
631 static PyObject *tuple_iter(PyObject *seq);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
632
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
633 PyTypeObject PyTuple_Type = {
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
634 PyVarObject_HEAD_INIT(&PyType_Type, 0)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
635 "tuple",
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
636 sizeof(PyTupleObject) - sizeof(PyObject *),
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
637 sizeof(PyObject *),
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
638 (destructor)tupledealloc, /* tp_dealloc */
42477
e7fd327e0c19 Kill all uses and definitions of tp_print under Objects/. (Others will follow.)
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
639 0, /* tp_print */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
640 0, /* tp_getattr */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
641 0, /* tp_setattr */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
642 0, /* tp_compare */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
643 (reprfunc)tuplerepr, /* tp_repr */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
644 0, /* tp_as_number */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
645 &tuple_as_sequence, /* tp_as_sequence */
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
646 &tuple_as_mapping, /* tp_as_mapping */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
647 (hashfunc)tuplehash, /* tp_hash */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
648 0, /* tp_call */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
649 0, /* tp_str */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
650 PyObject_GenericGetAttr, /* tp_getattro */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
651 0, /* tp_setattro */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
652 0, /* tp_as_buffer */
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
653 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
40909
f2f0b41f270d Merged revisions 53875-53911 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40450
diff changeset
654 Py_TPFLAGS_BASETYPE | Py_TPFLAGS_TUPLE_SUBCLASS, /* tp_flags */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
655 tuple_doc, /* tp_doc */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
656 (traverseproc)tupletraverse, /* tp_traverse */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
657 0, /* tp_clear */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
658 tuplerichcompare, /* tp_richcompare */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
659 0, /* tp_weaklistoffset */
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
660 tuple_iter, /* tp_iter */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
661 0, /* tp_iternext */
27521
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
662 tuple_methods, /* tp_methods */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
663 0, /* tp_members */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
664 0, /* tp_getset */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
665 0, /* tp_base */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
666 0, /* tp_dict */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
667 0, /* tp_descr_get */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
668 0, /* tp_descr_set */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
669 0, /* tp_dictoffset */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
670 0, /* tp_init */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
671 0, /* tp_alloc */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
672 tuple_new, /* tp_new */
22979
9fe94c01eaf1 PyObject_GC_Del can now be used as a function designator.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 22626
diff changeset
673 PyObject_GC_Del, /* tp_free */
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
674 };
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
675
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
676 /* The following function breaks the notion that tuples are immutable:
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
677 it changes the size of a tuple. We get away with this only if there
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
678 is only one module referencing the object. You can also think of it
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
679 as creating a new tuple object and destroying the old one, only more
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
680 efficiently. In any case, don't use this if the tuple may already be
17976
d579a5d8b3fe Cruft cleanup: Removed the unused last_is_sticky argument from the internal
Tim Peters <tim.peters@gmail.com>
parents: 17975
diff changeset
681 known to some other part of the code. */
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
682
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
683 int
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
684 _PyTuple_Resize(PyObject **pv, Py_ssize_t newsize)
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
685 {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
686 register PyTupleObject *v;
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
687 register PyTupleObject *sv;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
688 Py_ssize_t i;
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
689 Py_ssize_t oldsize;
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
690
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
691 v = (PyTupleObject *) *pv;
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
692 if (v == NULL || Py_Type(v) != &PyTuple_Type ||
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
693 (Py_Size(v) != 0 && Py_Refcnt(v) != 1)) {
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
694 *pv = 0;
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
695 Py_XDECREF(v);
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
696 PyErr_BadInternalCall();
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
697 return -1;
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
698 }
42334
e70cdce0e8b2 Merged revisions 56467-56482 via svnmerge from
Martin v. Löwis <martin@v.loewis.de>
parents: 41769
diff changeset
699 oldsize = Py_Size(v);
21293
b810c30b4aa1 _PyTuple_Resize(): this dumped core on tuple(globals()) for me. Turns
Guido van Rossum <guido@python.org>
parents: 20277
diff changeset
700 if (oldsize == newsize)
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
701 return 0;
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
702
21293
b810c30b4aa1 _PyTuple_Resize(): this dumped core on tuple(globals()) for me. Turns
Guido van Rossum <guido@python.org>
parents: 20277
diff changeset
703 if (oldsize == 0) {
17975
527d0ffdf099 _PyTuple_Resize: take into account the empty tuple. There can be only one.
Thomas Wouters <thomas@python.org>
parents: 17841
diff changeset
704 /* Empty tuples are often shared, so we should never
527d0ffdf099 _PyTuple_Resize: take into account the empty tuple. There can be only one.
Thomas Wouters <thomas@python.org>
parents: 17841
diff changeset
705 resize them in-place even if we do own the only
527d0ffdf099 _PyTuple_Resize: take into account the empty tuple. There can be only one.
Thomas Wouters <thomas@python.org>
parents: 17841
diff changeset
706 (current) reference */
527d0ffdf099 _PyTuple_Resize: take into account the empty tuple. There can be only one.
Thomas Wouters <thomas@python.org>
parents: 17841
diff changeset
707 Py_DECREF(v);
527d0ffdf099 _PyTuple_Resize: take into account the empty tuple. There can be only one.
Thomas Wouters <thomas@python.org>
parents: 17841
diff changeset
708 *pv = PyTuple_New(newsize);
17979
192d36869445 _PyTuple_Resize: guard against PyTuple_New() returning NULL, using Tim's
Thomas Wouters <thomas@python.org>
parents: 17976
diff changeset
709 return *pv == NULL ? -1 : 0;
17975
527d0ffdf099 _PyTuple_Resize: take into account the empty tuple. There can be only one.
Thomas Wouters <thomas@python.org>
parents: 17841
diff changeset
710 }
527d0ffdf099 _PyTuple_Resize: take into account the empty tuple. There can be only one.
Thomas Wouters <thomas@python.org>
parents: 17841
diff changeset
711
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
712 /* XXX UNREF/NEWREF interface should be more symmetrical */
24184
c4dcb80f48ea object.h special-build macro minefield: renamed all the new lexical
Tim Peters <tim.peters@gmail.com>
parents: 23952
diff changeset
713 _Py_DEC_REFTOTAL;
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
714 _PyObject_GC_UNTRACK(v);
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
715 _Py_ForgetReference((PyObject *) v);
21293
b810c30b4aa1 _PyTuple_Resize(): this dumped core on tuple(globals()) for me. Turns
Guido van Rossum <guido@python.org>
parents: 20277
diff changeset
716 /* DECREF items deleted by shrinkage */
b810c30b4aa1 _PyTuple_Resize(): this dumped core on tuple(globals()) for me. Turns
Guido van Rossum <guido@python.org>
parents: 20277
diff changeset
717 for (i = newsize; i < oldsize; i++) {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
718 Py_XDECREF(v->ob_item[i]);
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
719 v->ob_item[i] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
720 }
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
721 sv = PyObject_GC_Resize(PyTupleObject, v, newsize);
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
722 if (sv == NULL) {
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
723 *pv = NULL;
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
724 PyObject_GC_Del(v);
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
725 return -1;
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
726 }
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
727 _Py_NewReference((PyObject *) sv);
21293
b810c30b4aa1 _PyTuple_Resize(): this dumped core on tuple(globals()) for me. Turns
Guido van Rossum <guido@python.org>
parents: 20277
diff changeset
728 /* Zero out items added by growing */
23834
8ae26d9be1b4 SF #561244 Micro optimizations
Neal Norwitz <nnorwitz@gmail.com>
parents: 23832
diff changeset
729 if (newsize > oldsize)
23952
3834cb0e7be6 Fix for SF bug 571885
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 23834
diff changeset
730 memset(&sv->ob_item[oldsize], 0,
3834cb0e7be6 Fix for SF bug 571885
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 23834
diff changeset
731 sizeof(*sv->ob_item) * (newsize - oldsize));
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
732 *pv = (PyObject *) sv;
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
733 _PyObject_GC_TRACK(sv);
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
734 return 0;
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
735 }
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
736
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
737 void
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
738 PyTuple_Fini(void)
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
739 {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
740 #if MAXSAVESIZE > 0
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
741 int i;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
742
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
743 Py_XDECREF(free_tuples[0]);
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
744 free_tuples[0] = NULL;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
745
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
746 for (i = 1; i < MAXSAVESIZE; i++) {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
747 PyTupleObject *p, *q;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
748 p = free_tuples[i];
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
749 free_tuples[i] = NULL;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
750 while (p) {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
751 q = p;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
752 p = (PyTupleObject *)(p->ob_item[0]);
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
753 PyObject_GC_Del(q);
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
754 }
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
755 }
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
756 #endif
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
757 }
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
758
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
759 /*********************** Tuple Iterator **************************/
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
760
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
761 typedef struct {
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
762 PyObject_HEAD
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
763 long it_index;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
764 PyTupleObject *it_seq; /* Set to NULL when iterator is exhausted */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
765 } tupleiterobject;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
766
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
767 static void
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
768 tupleiter_dealloc(tupleiterobject *it)
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
769 {
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
770 _PyObject_GC_UNTRACK(it);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
771 Py_XDECREF(it->it_seq);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
772 PyObject_GC_Del(it);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
773 }
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
774
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
775 static int
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
776 tupleiter_traverse(tupleiterobject *it, visitproc visit, void *arg)
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
777 {
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
778 Py_VISIT(it->it_seq);
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36882
diff changeset
779 return 0;
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
780 }
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
781
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
782 static PyObject *
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
783 tupleiter_next(tupleiterobject *it)
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
784 {
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
785 PyTupleObject *seq;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
786 PyObject *item;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
787
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
788 assert(it != NULL);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
789 seq = it->it_seq;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
790 if (seq == NULL)
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
791 return NULL;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
792 assert(PyTuple_Check(seq));
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
793
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
794 if (it->it_index < PyTuple_GET_SIZE(seq)) {
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
795 item = PyTuple_GET_ITEM(seq, it->it_index);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
796 ++it->it_index;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
797 Py_INCREF(item);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
798 return item;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
799 }
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
800
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
801 Py_DECREF(seq);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
802 it->it_seq = NULL;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
803 return NULL;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
804 }
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
805
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
806 static PyObject *
31686
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
807 tupleiter_len(tupleiterobject *it)
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
808 {
36519
d6d415df0df0 Use Py_ssize_t for counts and sizes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36501
diff changeset
809 Py_ssize_t len = 0;
31686
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
810 if (it->it_seq)
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
811 len = PyTuple_GET_SIZE(it->it_seq) - it->it_index;
36519
d6d415df0df0 Use Py_ssize_t for counts and sizes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36501
diff changeset
812 return PyInt_FromSsize_t(len);
31686
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
813 }
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
814
36484
20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See:
Armin Rigo <arigo@tunes.org>
parents: 35999
diff changeset
815 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: 32318
diff changeset
816
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
817 static PyMethodDef tupleiter_methods[] = {
36484
20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See:
Armin Rigo <arigo@tunes.org>
parents: 35999
diff changeset
818 {"__length_hint__", (PyCFunction)tupleiter_len, METH_NOARGS, length_hint_doc},
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
819 {NULL, NULL} /* sentinel */
31686
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
820 };
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
821
24683
567704bfa595 Moved special case for tuples from iterobject.c to
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822 PyTypeObject PyTupleIter_Type = {
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823 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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824 "tupleiterator", /* tp_name */
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825 sizeof(tupleiterobject), /* tp_basicsize */
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826 0, /* tp_itemsize */
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827 /* methods */
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828 (destructor)tupleiter_dealloc, /* tp_dealloc */
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829 0, /* tp_print */
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830 0, /* tp_getattr */
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831 0, /* tp_setattr */
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832 0, /* tp_compare */
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833 0, /* tp_repr */
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834 0, /* tp_as_number */
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835 0, /* tp_as_sequence */
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836 0, /* tp_as_mapping */
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837 0, /* tp_hash */
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838 0, /* tp_call */
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839 0, /* tp_str */
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840 PyObject_GenericGetAttr, /* tp_getattro */
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841 0, /* tp_setattro */
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842 0, /* tp_as_buffer */
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843 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
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844 0, /* tp_doc */
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845 (traverseproc)tupleiter_traverse, /* tp_traverse */
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846 0, /* tp_clear */
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847 0, /* tp_richcompare */
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848 0, /* tp_weaklistoffset */
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849 PyObject_SelfIter, /* tp_iter */
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850 (iternextfunc)tupleiter_next, /* tp_iternext */
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851 tupleiter_methods, /* tp_methods */
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852 0,
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853 };
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854
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855 static PyObject *
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856 tuple_iter(PyObject *seq)
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857 {
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858 tupleiterobject *it;
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859
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860 if (!PyTuple_Check(seq)) {
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861 PyErr_BadInternalCall();
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862 return NULL;
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863 }
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864 it = PyObject_GC_New(tupleiterobject, &PyTupleIter_Type);
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865 if (it == NULL)
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866 return NULL;
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867 it->it_index = 0;
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868 Py_INCREF(seq);
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869 it->it_seq = (PyTupleObject *)seq;
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870 _PyObject_GC_TRACK(it);
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871 return (PyObject *)it;
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872 }