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annotate Objects/tupleobject.c @ 39496:352ffe77b71d legacy-trunk

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Patch #1535500: fix segfault in BZ2File.writelines and make sure it raises the correct exceptions.
author Georg Brandl <georg@python.org>
date Mon, 14 Aug 2006 21:42:55 +0000
parents 6cafdc81cfde
children 094a9ce4b9bd b871e7bd8355
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 op->ob_size = size;
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53 op->ob_type = &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 ((PyTupleObject *)op)->ob_size;
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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 >= ((PyTupleObject *)op) -> ob_size) {
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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 >= ((PyTupleObject *)op) -> ob_size) {
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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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137 PyObject *o;
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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;
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
163 register Py_ssize_t len = op->ob_size;
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 &&
c396afef1aa9 More stuff discovered while writing the simplest of testcases:
Guido van Rossum <guido@python.org>
parents: 19592
diff changeset
173 op->ob_type == &PyTuple_Type)
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 }
20277
2983b54256c7 Enable GC for new-style instances. This touches lots of files, since
Guido van Rossum <guido@python.org>
parents: 19872
diff changeset
182 op->ob_type->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
288
9b43a983124c printobject now returns an error code
Guido van Rossum <guido@python.org>
parents: 258
diff changeset
187 static int
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
188 tupleprint(PyTupleObject *op, FILE *fp, int flags)
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;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
191 fprintf(fp, "(");
288
9b43a983124c printobject now returns an error code
Guido van Rossum <guido@python.org>
parents: 258
diff changeset
192 for (i = 0; i < op->ob_size; i++) {
9b43a983124c printobject now returns an error code
Guido van Rossum <guido@python.org>
parents: 258
diff changeset
193 if (i > 0)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
194 fprintf(fp, ", ");
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
195 if (PyObject_Print(op->ob_item[i], fp, 0) != 0)
288
9b43a983124c printobject now returns an error code
Guido van Rossum <guido@python.org>
parents: 258
diff changeset
196 return -1;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
197 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
198 if (op->ob_size == 1)
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
199 fprintf(fp, ",");
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
200 fprintf(fp, ")");
288
9b43a983124c printobject now returns an error code
Guido van Rossum <guido@python.org>
parents: 258
diff changeset
201 return 0;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
202 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
203
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
204 static PyObject *
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
205 tuplerepr(PyTupleObject *v)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
206 {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
207 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
208 PyObject *s, *temp;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
209 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
210
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
211 n = v->ob_size;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
212 if (n == 0)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
213 return PyString_FromString("()");
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
214
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
215 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
216 if (pieces == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
217 return NULL;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
218
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
219 /* 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
220 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
221 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
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 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
225 }
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
226
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
227 /* 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
228 assert(n > 0);
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
229 s = PyString_FromString("(");
18129
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
230 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
231 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
232 temp = PyTuple_GET_ITEM(pieces, 0);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
233 PyString_ConcatAndDel(&s, temp);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
234 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
235 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
236 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
237
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
238 s = PyString_FromString(n == 1 ? ",)" : ")");
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
239 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
240 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
241 temp = PyTuple_GET_ITEM(pieces, n-1);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
242 PyString_ConcatAndDel(&temp, s);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
243 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
244 if (temp == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
245 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
246
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
247 /* Paste them all together with ", " between. */
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
248 s = PyString_FromString(", ");
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
249 if (s == NULL)
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
250 goto Done;
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
251 result = _PyString_Join(s, pieces);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
252 Py_DECREF(s);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
253
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
254 Done:
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
255 Py_DECREF(pieces);
9d533ae574d2 SF bug 433228: repr(list) woes when len(list) big.
Tim Peters <tim.peters@gmail.com>
parents: 17979
diff changeset
256 return result;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
257 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
258
32242
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
259 /* 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
260 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
261 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
262
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
263 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
264 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
265 */
0bdb49a5a8fa Replaced arbitrary addend in tuple_hash with one that is known to generate
Raymond Hettinger <python@rcn.com>
parents: 32171
diff changeset
266
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
267 static long
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
268 tuplehash(PyTupleObject *v)
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
269 {
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
270 register long x, y;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
271 register Py_ssize_t len = v->ob_size;
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
272 register PyObject **p;
32171
97b908a9971a SF bug #942952: Weakness in tuple hash
Raymond Hettinger <python@rcn.com>
parents: 31759
diff changeset
273 long mult = 1000003L;
1257
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274 x = 0x345678L;
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275 p = v->ob_item;
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276 while (--len >= 0) {
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277 y = PyObject_Hash(*p++);
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278 if (y == -1)
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279 return -1;
32171
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280 x = (x ^ y) * mult;
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281 /* the cast might truncate len; that doesn't change hash stability */
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282 mult += (long)(82520L + len + len);
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283 }
32318
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284 x += 97531L;
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285 if (x == -1)
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286 x = -2;
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287 return x;
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288 }
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289
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290 static Py_ssize_t
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291 tuplelength(PyTupleObject *a)
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292 {
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293 return a->ob_size;
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294 }
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295
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296 static int
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297 tuplecontains(PyTupleObject *a, PyObject *el)
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298 {
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299 Py_ssize_t i;
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300 int cmp;
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301
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302 for (i = 0, cmp = 0 ; cmp == 0 && i < a->ob_size; ++i)
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303 cmp = PyObject_RichCompareBool(el, PyTuple_GET_ITEM(a, i),
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304 Py_EQ);
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305 return cmp;
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306 }
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307
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308 static PyObject *
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309 tupleitem(register PyTupleObject *a, register Py_ssize_t i)
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310 {
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311 if (i < 0 || i >= a->ob_size) {
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312 PyErr_SetString(PyExc_IndexError, "tuple index out of range");
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313 return NULL;
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314 }
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315 Py_INCREF(a->ob_item[i]);
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316 return a->ob_item[i];
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317 }
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318
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319 static PyObject *
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320 tupleslice(register PyTupleObject *a, register Py_ssize_t ilow,
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321 register Py_ssize_t ihigh)
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322 {
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323 register PyTupleObject *np;
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324 PyObject **src, **dest;
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325 register Py_ssize_t i;
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326 Py_ssize_t len;
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327 if (ilow < 0)
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328 ilow = 0;
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329 if (ihigh > a->ob_size)
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330 ihigh = a->ob_size;
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331 if (ihigh < ilow)
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332 ihigh = ilow;
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51363348dcfa The endless 460020 bug.
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333 if (ilow == 0 && ihigh == a->ob_size && PyTuple_CheckExact(a)) {
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334 Py_INCREF(a);
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335 return (PyObject *)a;
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336 }
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337 len = ihigh - ilow;
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338 np = (PyTupleObject *)PyTuple_New(len);
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339 if (np == NULL)
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340 return NULL;
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341 src = a->ob_item + ilow;
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342 dest = np->ob_item;
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343 for (i = 0; i < len; i++) {
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344 PyObject *v = src[i];
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345 Py_INCREF(v);
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346 dest[i] = v;
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347 }
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348 return (PyObject *)np;
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349 }
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350
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351 PyObject *
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diff changeset
352 PyTuple_GetSlice(PyObject *op, Py_ssize_t i, Py_ssize_t j)
599
a347933a6d92 New function gettupleslice(v, i, j).
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diff changeset
353 {
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354 if (op == NULL || !PyTuple_Check(op)) {
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355 PyErr_BadInternalCall();
599
a347933a6d92 New function gettupleslice(v, i, j).
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diff changeset
356 return NULL;
a347933a6d92 New function gettupleslice(v, i, j).
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diff changeset
357 }
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358 return tupleslice((PyTupleObject *)op, i, j);
599
a347933a6d92 New function gettupleslice(v, i, j).
Guido van Rossum <guido@python.org>
parents: 288
diff changeset
359 }
a347933a6d92 New function gettupleslice(v, i, j).
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parents: 288
diff changeset
360
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361 static PyObject *
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diff changeset
362 tupleconcat(register PyTupleObject *a, register PyObject *bb)
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363 {
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diff changeset
364 register Py_ssize_t size;
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diff changeset
365 register Py_ssize_t i;
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diff changeset
366 PyObject **src, **dest;
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367 PyTupleObject *np;
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368 if (!PyTuple_Check(bb)) {
12816
4272b368bf69 Michael Hudson <mwh21@cam.ac.uk>:
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parents: 12576
diff changeset
369 PyErr_Format(PyExc_TypeError,
12929
2eef636ba1b6 Michael Hudson <mwh21@cam.ac.uk>:
Marc-André Lemburg <mal@egenix.com>
parents: 12925
diff changeset
370 "can only concatenate tuple (not \"%.200s\") to tuple",
12816
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parents: 12576
diff changeset
371 bb->ob_type->tp_name);
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372 return NULL;
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373 }
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374 #define b ((PyTupleObject *)bb)
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375 size = a->ob_size + b->ob_size;
25740
70f9026a2b16 Add checks for size overflow on list*n, list+list, tuple+tuple.
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parents: 25128
diff changeset
376 if (size < 0)
70f9026a2b16 Add checks for size overflow on list*n, list+list, tuple+tuple.
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377 return PyErr_NoMemory();
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378 np = (PyTupleObject *) PyTuple_New(size);
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379 if (np == NULL) {
288
9b43a983124c printobject now returns an error code
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diff changeset
380 return NULL;
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381 }
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diff changeset
382 src = a->ob_item;
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diff changeset
383 dest = np->ob_item;
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384 for (i = 0; i < a->ob_size; i++) {
31633
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diff changeset
385 PyObject *v = src[i];
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386 Py_INCREF(v);
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diff changeset
387 dest[i] = v;
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388 }
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diff changeset
389 src = b->ob_item;
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390 dest = np->ob_item + a->ob_size;
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391 for (i = 0; i < b->ob_size; i++) {
31633
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diff changeset
392 PyObject *v = src[i];
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393 Py_INCREF(v);
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diff changeset
394 dest[i] = v;
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395 }
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396 return (PyObject *)np;
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397 #undef b
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398 }
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399
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400 static PyObject *
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diff changeset
401 tuplerepeat(PyTupleObject *a, Py_ssize_t n)
258
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
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parents: 145
diff changeset
402 {
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diff changeset
403 Py_ssize_t i, j;
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diff changeset
404 Py_ssize_t size;
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405 PyTupleObject *np;
31633
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diff changeset
406 PyObject **p, **items;
258
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
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diff changeset
407 if (n < 0)
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
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diff changeset
408 n = 0;
11127
9a20038f0b99 Appropriate overflow checks so that things like sys.maxint*(1,) can't
Guido van Rossum <guido@python.org>
parents: 9632
diff changeset
409 if (a->ob_size == 0 || n == 1) {
19872
51363348dcfa The endless 460020 bug.
Tim Peters <tim.peters@gmail.com>
parents: 19657
diff changeset
410 if (PyTuple_CheckExact(a)) {
51363348dcfa The endless 460020 bug.
Tim Peters <tim.peters@gmail.com>
parents: 19657
diff changeset
411 /* Since tuples are immutable, we can return a shared
51363348dcfa The endless 460020 bug.
Tim Peters <tim.peters@gmail.com>
parents: 19657
diff changeset
412 copy in this case */
51363348dcfa The endless 460020 bug.
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parents: 19657
diff changeset
413 Py_INCREF(a);
51363348dcfa The endless 460020 bug.
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parents: 19657
diff changeset
414 return (PyObject *)a;
51363348dcfa The endless 460020 bug.
Tim Peters <tim.peters@gmail.com>
parents: 19657
diff changeset
415 }
51363348dcfa The endless 460020 bug.
Tim Peters <tim.peters@gmail.com>
parents: 19657
diff changeset
416 if (a->ob_size == 0)
51363348dcfa The endless 460020 bug.
Tim Peters <tim.peters@gmail.com>
parents: 19657
diff changeset
417 return PyTuple_New(0);
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 size = a->ob_size * n;
11128
a4b7242a4b74 Mark Favas was quick to note that the last checkin divides by zero
Guido van Rossum <guido@python.org>
parents: 11127
diff changeset
420 if (size/a->ob_size != n)
11127
9a20038f0b99 Appropriate overflow checks so that things like sys.maxint*(1,) can't
Guido van Rossum <guido@python.org>
parents: 9632
diff changeset
421 return PyErr_NoMemory();
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
422 np = (PyTupleObject *) PyTuple_New(size);
258
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
423 if (np == NULL)
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
424 return NULL;
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
425 p = np->ob_item;
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
426 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
427 for (i = 0; i < n; i++) {
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
428 for (j = 0; j < a->ob_size; j++) {
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
429 *p = items[j];
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
430 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
431 p++;
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
432 }
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
433 }
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
434 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
435 }
3b93bcea10f6 Finally implement tuple*number. From now on all sequence types
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
436
12990
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
437 static int
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
438 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
439 {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
440 Py_ssize_t i;
12990
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
441
37756
7b2e436a4a21 Use Py_VISIT in all tp_traverse methods, instead of traversing manually or
Thomas Wouters <thomas@python.org>
parents: 37602
diff changeset
442 for (i = o->ob_size; --i >= 0; )
7b2e436a4a21 Use Py_VISIT in all tp_traverse methods, instead of traversing manually or
Thomas Wouters <thomas@python.org>
parents: 37602
diff changeset
443 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
444 return 0;
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
445 }
e615596c5c47 Round 1 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12929
diff changeset
446
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
447 static PyObject *
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
448 tuplerichcompare(PyObject *v, PyObject *w, int op)
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
449 {
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
450 PyTupleObject *vt, *wt;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
451 Py_ssize_t i;
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
452 Py_ssize_t vlen, wlen;
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
453
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
454 if (!PyTuple_Check(v) || !PyTuple_Check(w)) {
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
455 Py_INCREF(Py_NotImplemented);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
456 return Py_NotImplemented;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
457 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
458
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
459 vt = (PyTupleObject *)v;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
460 wt = (PyTupleObject *)w;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
461
17841
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
462 vlen = vt->ob_size;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
463 wlen = wt->ob_size;
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
464
17841
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
465 /* 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
466 * 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
467 * 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
468 * 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
469 * have cost without benefit.
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
470 */
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
471
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
472 /* 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
473 * 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
474 * vlen and wlen across the comparison calls.
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
475 */
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
476 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
477 int k = PyObject_RichCompareBool(vt->ob_item[i],
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
478 wt->ob_item[i], Py_EQ);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
479 if (k < 0)
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
480 return NULL;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
481 if (!k)
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
482 break;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
483 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
484
17841
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
485 if (i >= vlen || i >= wlen) {
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
486 /* No more items to compare -- compare sizes */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
487 int cmp;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
488 PyObject *res;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
489 switch (op) {
17841
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
490 case Py_LT: cmp = vlen < wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
491 case Py_LE: cmp = vlen <= wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
492 case Py_EQ: cmp = vlen == wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
493 case Py_NE: cmp = vlen != wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
494 case Py_GT: cmp = vlen > wlen; break;
2b5a9bff1b11 Speed tuple comparisons in two ways:
Tim Peters <tim.peters@gmail.com>
parents: 15973
diff changeset
495 case Py_GE: cmp = vlen >= wlen; break;
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
496 default: return NULL; /* cannot happen */
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 if (cmp)
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
499 res = Py_True;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
500 else
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
501 res = Py_False;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
502 Py_INCREF(res);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
503 return res;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
504 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
505
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
506 /* 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
507 if (op == Py_EQ) {
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
508 Py_INCREF(Py_False);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
509 return Py_False;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
510 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
511 if (op == Py_NE) {
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
512 Py_INCREF(Py_True);
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
513 return Py_True;
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
514 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
515
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
516 /* 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
517 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
518 }
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
519
24280
1598a1e473e2 staticforward bites the dust.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 24184
diff changeset
520 static PyObject *
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
521 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
522
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
523 static PyObject *
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
524 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
525 {
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
526 PyObject *arg = NULL;
36675
dba6494735d0 Revert backwards-incompatible const changes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36519
diff changeset
527 static char *kwlist[] = {"sequence", 0};
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
528
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
529 if (type != &PyTuple_Type)
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
530 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
531 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
532 return NULL;
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
533
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
534 if (arg == NULL)
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
535 return PyTuple_New(0);
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
536 else
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
537 return PySequence_Tuple(arg);
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
538 }
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
539
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
540 static PyObject *
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
541 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
542 {
37596
1b078493d538 More low-hanging fruit. Still need to re-arrange some code (or find a better
Anthony Baxter <anthonybaxter@gmail.com>
parents: 37067
diff changeset
543 PyObject *tmp, *newobj, *item;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
544 Py_ssize_t i, n;
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
545
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
546 assert(PyType_IsSubtype(type, &PyTuple_Type));
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
547 tmp = tuple_new(&PyTuple_Type, args, kwds);
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
548 if (tmp == NULL)
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
549 return NULL;
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
550 assert(PyTuple_Check(tmp));
37596
1b078493d538 More low-hanging fruit. Still need to re-arrange some code (or find a better
Anthony Baxter <anthonybaxter@gmail.com>
parents: 37067
diff changeset
551 newobj = type->tp_alloc(type, n = PyTuple_GET_SIZE(tmp));
1b078493d538 More low-hanging fruit. Still need to re-arrange some code (or find a better
Anthony Baxter <anthonybaxter@gmail.com>
parents: 37067
diff changeset
552 if (newobj == NULL)
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
553 return NULL;
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
554 for (i = 0; i < n; i++) {
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
555 item = PyTuple_GET_ITEM(tmp, i);
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
556 Py_INCREF(item);
37596
1b078493d538 More low-hanging fruit. Still need to re-arrange some code (or find a better
Anthony Baxter <anthonybaxter@gmail.com>
parents: 37067
diff changeset
557 PyTuple_SET_ITEM(newobj, i, item);
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
558 }
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
559 Py_DECREF(tmp);
37596
1b078493d538 More low-hanging fruit. Still need to re-arrange some code (or find a better
Anthony Baxter <anthonybaxter@gmail.com>
parents: 37067
diff changeset
560 return newobj;
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
561 }
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
562
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23778
diff changeset
563 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
564 "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
565 "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
566 "\n"
23832
ed1ba37a46b7 Patch #568124: Add doc string macros.
Martin v. Löwis <martin@v.loewis.de>
parents: 23778
diff changeset
567 "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
568
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
569 static PySequenceMethods tuple_as_sequence = {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
570 (lenfunc)tuplelength, /* sq_length */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
571 (binaryfunc)tupleconcat, /* sq_concat */
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
572 (ssizeargfunc)tuplerepeat, /* sq_repeat */
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
573 (ssizeargfunc)tupleitem, /* sq_item */
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
574 (ssizessizeargfunc)tupleslice, /* sq_slice */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
575 0, /* sq_ass_item */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
576 0, /* sq_ass_slice */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
577 (objobjproc)tuplecontains, /* sq_contains */
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
578 };
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
579
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
580 static PyObject*
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
581 tuplesubscript(PyTupleObject* self, PyObject* item)
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
582 {
39463
6cafdc81cfde Patch #1538606, Patch to fix __index__() clipping.
Neal Norwitz <nnorwitz@gmail.com>
parents: 37756
diff changeset
583 if (PyIndex_Check(item)) {
6cafdc81cfde Patch #1538606, Patch to fix __index__() clipping.
Neal Norwitz <nnorwitz@gmail.com>
parents: 37756
diff changeset
584 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
585 if (i == -1 && PyErr_Occurred())
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
586 return NULL;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
587 if (i < 0)
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
588 i += PyTuple_GET_SIZE(self);
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
589 return tupleitem(self, i);
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
590 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
591 else if (PySlice_Check(item)) {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
592 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
593 PyObject* result;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
594 PyObject* it;
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
595 PyObject **src, **dest;
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
596
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
597 if (PySlice_GetIndicesEx((PySliceObject*)item,
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
598 PyTuple_GET_SIZE(self),
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
599 &start, &stop, &step, &slicelength) < 0) {
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
600 return NULL;
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
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
603 if (slicelength <= 0) {
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
604 return PyTuple_New(0);
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
605 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
606 else {
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
607 result = PyTuple_New(slicelength);
37067
1f4549865aad Fix some missing checks after PyTuple_New, PyList_New, PyDict_New
Georg Brandl <georg@python.org>
parents: 36882
diff changeset
608 if (!result) return NULL;
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
609
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
610 src = self->ob_item;
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
611 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
612 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
613 cur += step, i++) {
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
614 it = src[cur];
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
615 Py_INCREF(it);
31633
5bd455638c7a Optimize inner loops for subscript, repeat, and concat.
Raymond Hettinger <python@rcn.com>
parents: 31623
diff changeset
616 dest[i] = it;
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
617 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
618
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
619 return result;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
620 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
621 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
622 else {
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
623 PyErr_SetString(PyExc_TypeError,
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
624 "tuple indices must be integers");
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
625 return NULL;
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
626 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
627 }
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
628
27521
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
629 static PyObject *
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
630 tuple_getnewargs(PyTupleObject *v)
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
631 {
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
632 return Py_BuildValue("(N)", tupleslice(v, 0, v->ob_size));
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
633
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
634 }
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
635
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
636 static PyMethodDef tuple_methods[] = {
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
637 {"__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
638 {NULL, NULL} /* sentinel */
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
639 };
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
640
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
641 static PyMappingMethods tuple_as_mapping = {
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
642 (lenfunc)tuplelength,
23778
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
643 (binaryfunc)tuplesubscript,
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
644 0
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
645 };
245224d1b8c9 This is my nearly two year old patch
Michael W. Hudson <mwh@python.net>
parents: 22979
diff changeset
646
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
647 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
648
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
649 PyTypeObject PyTuple_Type = {
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
650 PyObject_HEAD_INIT(&PyType_Type)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
651 0,
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
652 "tuple",
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
653 sizeof(PyTupleObject) - sizeof(PyObject *),
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
654 sizeof(PyObject *),
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
655 (destructor)tupledealloc, /* tp_dealloc */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
656 (printfunc)tupleprint, /* tp_print */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
657 0, /* tp_getattr */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
658 0, /* tp_setattr */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
659 0, /* tp_compare */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
660 (reprfunc)tuplerepr, /* tp_repr */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
661 0, /* tp_as_number */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
662 &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
663 &tuple_as_mapping, /* tp_as_mapping */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
664 (hashfunc)tuplehash, /* tp_hash */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
665 0, /* tp_call */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
666 0, /* tp_str */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
667 PyObject_GenericGetAttr, /* tp_getattro */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
668 0, /* tp_setattro */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
669 0, /* tp_as_buffer */
19592
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
670 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
85765e61deb0 Make str and tuple types subclassable.
Guido van Rossum <guido@python.org>
parents: 19581
diff changeset
671 Py_TPFLAGS_BASETYPE, /* tp_flags */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
672 tuple_doc, /* tp_doc */
15973
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
673 (traverseproc)tupletraverse, /* tp_traverse */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
674 0, /* tp_clear */
72139263f8a7 Same treatment as listobject.c:
Guido van Rossum <guido@python.org>
parents: 15037
diff changeset
675 tuplerichcompare, /* tp_richcompare */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
676 0, /* tp_weaklistoffset */
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
677 tuple_iter, /* tp_iter */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
678 0, /* tp_iternext */
27521
17bfd5dbc0f1 Implement appropriate __getnewargs__ for all immutable subclassable builtin
Guido van Rossum <guido@python.org>
parents: 25740
diff changeset
679 tuple_methods, /* tp_methods */
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
680 0, /* tp_members */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
681 0, /* tp_getset */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
682 0, /* tp_base */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
683 0, /* tp_dict */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
684 0, /* tp_descr_get */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
685 0, /* tp_descr_set */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
686 0, /* tp_dictoffset */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
687 0, /* tp_init */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
688 0, /* tp_alloc */
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18129
diff changeset
689 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
690 PyObject_GC_Del, /* tp_free */
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
691 };
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
692
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
693 /* 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
694 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
695 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
696 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
697 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
698 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
699
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
700 int
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
701 _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
702 {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
703 register PyTupleObject *v;
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
704 register PyTupleObject *sv;
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
705 Py_ssize_t i;
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 36484
diff changeset
706 Py_ssize_t oldsize;
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
707
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
708 v = (PyTupleObject *) *pv;
19612
c396afef1aa9 More stuff discovered while writing the simplest of testcases:
Guido van Rossum <guido@python.org>
parents: 19592
diff changeset
709 if (v == NULL || v->ob_type != &PyTuple_Type ||
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 (v->ob_size != 0 && v->ob_refcnt != 1)) {
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
711 *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
712 Py_XDECREF(v);
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
713 PyErr_BadInternalCall();
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
714 return -1;
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
715 }
21293
b810c30b4aa1 _PyTuple_Resize(): this dumped core on tuple(globals()) for me. Turns
Guido van Rossum <guido@python.org>
parents: 20277
diff changeset
716 oldsize = v->ob_size;
b810c30b4aa1 _PyTuple_Resize(): this dumped core on tuple(globals()) for me. Turns
Guido van Rossum <guido@python.org>
parents: 20277
diff changeset
717 if (oldsize == newsize)
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
718 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
719
21293
b810c30b4aa1 _PyTuple_Resize(): this dumped core on tuple(globals()) for me. Turns
Guido van Rossum <guido@python.org>
parents: 20277
diff changeset
720 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
721 /* 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
722 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
723 (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
724 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
725 *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
726 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
727 }
527d0ffdf099 _PyTuple_Resize: take into account the empty tuple. There can be only one.
Thomas Wouters <thomas@python.org>
parents: 17841
diff changeset
728
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
729 /* 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
730 _Py_DEC_REFTOTAL;
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
731 _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
732 _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
733 /* 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
734 for (i = newsize; i < oldsize; i++) {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
735 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
736 v->ob_item[i] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
737 }
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
738 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
739 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
740 *pv = NULL;
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
741 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
742 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
743 }
15037
c7d46eae95d8 Simplify _PyTuple_Resize by not using the tuple free list and dropping
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 14584
diff changeset
744 _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
745 /* Zero out items added by growing */
23834
8ae26d9be1b4 SF #561244 Micro optimizations
Neal Norwitz <nnorwitz@gmail.com>
parents: 23832
diff changeset
746 if (newsize > oldsize)
23952
3834cb0e7be6 Fix for SF bug 571885
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 23834
diff changeset
747 memset(&sv->ob_item[oldsize], 0,
3834cb0e7be6 Fix for SF bug 571885
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 23834
diff changeset
748 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
749 *pv = (PyObject *) sv;
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
750 _PyObject_GC_TRACK(sv);
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
751 return 0;
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
752 }
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
753
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
754 void
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
755 PyTuple_Fini(void)
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
756 {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
757 #if MAXSAVESIZE > 0
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
758 int i;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
759
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
760 Py_XDECREF(free_tuples[0]);
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
761 free_tuples[0] = NULL;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
762
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
763 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
764 PyTupleObject *p, *q;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
765 p = free_tuples[i];
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
766 free_tuples[i] = NULL;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
767 while (p) {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
768 q = p;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
769 p = (PyTupleObject *)(p->ob_item[0]);
19581
fd48a55ac364 Use new GC API.
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 18933
diff changeset
770 PyObject_GC_Del(q);
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
771 }
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
772 }
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
773 #endif
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
774 }
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
775
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
776 /*********************** Tuple Iterator **************************/
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
777
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
778 typedef struct {
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
779 PyObject_HEAD
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
780 long it_index;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
781 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
782 } tupleiterobject;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
783
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
784 static void
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
785 tupleiter_dealloc(tupleiterobject *it)
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
786 {
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
787 _PyObject_GC_UNTRACK(it);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
788 Py_XDECREF(it->it_seq);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
789 PyObject_GC_Del(it);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
790 }
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
791
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
792 static int
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
793 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
794 {
37756
7b2e436a4a21 Use Py_VISIT in all tp_traverse methods, instead of traversing manually or
Thomas Wouters <thomas@python.org>
parents: 37602
diff changeset
795 Py_VISIT(it->it_seq);
7b2e436a4a21 Use Py_VISIT in all tp_traverse methods, instead of traversing manually or
Thomas Wouters <thomas@python.org>
parents: 37602
diff changeset
796 return 0;
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
797 }
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
798
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
799 static PyObject *
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
800 tupleiter_next(tupleiterobject *it)
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
801 {
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
802 PyTupleObject *seq;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
803 PyObject *item;
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 assert(it != NULL);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
806 seq = it->it_seq;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
807 if (seq == NULL)
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
808 return NULL;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
809 assert(PyTuple_Check(seq));
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
810
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
811 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
812 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
813 ++it->it_index;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
814 Py_INCREF(item);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
815 return item;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
816 }
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
817
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
818 Py_DECREF(seq);
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
819 it->it_seq = NULL;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
820 return NULL;
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
821 }
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
822
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
823 static PyObject *
31686
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
824 tupleiter_len(tupleiterobject *it)
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
825 {
36519
d6d415df0df0 Use Py_ssize_t for counts and sizes.
Martin v. Löwis <martin@v.loewis.de>
parents: 36501
diff changeset
826 Py_ssize_t len = 0;
31686
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
827 if (it->it_seq)
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
828 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
829 return PyInt_FromSsize_t(len);
31686
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
830 }
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
831
36484
20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See:
Armin Rigo <arigo@tunes.org>
parents: 35999
diff changeset
832 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
833
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
834 static PyMethodDef tupleiter_methods[] = {
36484
20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See:
Armin Rigo <arigo@tunes.org>
parents: 35999
diff changeset
835 {"__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
836 {NULL, NULL} /* sentinel */
31686
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
837 };
823279ae43eb Make iterators length transparent where possible.
Raymond Hettinger <python@rcn.com>
parents: 31663
diff changeset
838
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
839 PyTypeObject PyTupleIter_Type = {
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
840 PyObject_HEAD_INIT(&PyType_Type)
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
841 0, /* ob_size */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
842 "tupleiterator", /* tp_name */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
843 sizeof(tupleiterobject), /* tp_basicsize */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
844 0, /* tp_itemsize */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
845 /* methods */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
846 (destructor)tupleiter_dealloc, /* tp_dealloc */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
847 0, /* tp_print */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
848 0, /* tp_getattr */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
849 0, /* tp_setattr */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
850 0, /* tp_compare */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
851 0, /* tp_repr */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
852 0, /* tp_as_number */
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
853 0, /* tp_as_sequence */
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
854 0, /* tp_as_mapping */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
855 0, /* tp_hash */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
856 0, /* tp_call */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
857 0, /* tp_str */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
858 PyObject_GenericGetAttr, /* tp_getattro */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
859 0, /* tp_setattro */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
860 0, /* tp_as_buffer */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
861 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
862 0, /* tp_doc */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
863 (traverseproc)tupleiter_traverse, /* tp_traverse */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
864 0, /* tp_clear */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
865 0, /* tp_richcompare */
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
866 0, /* tp_weaklistoffset */
28320
fd5ef7003469 Renamed PyObject_GenericGetIter to PyObject_SelfIter
Raymond Hettinger <python@rcn.com>
parents: 28308
diff changeset
867 PyObject_SelfIter, /* tp_iter */
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
868 (iternextfunc)tupleiter_next, /* tp_iternext */
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
869 tupleiter_methods, /* tp_methods */
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 32318
diff changeset
870 0,
24683
567704bfa595 Moved special case for tuples from iterobject.c to
Raymond Hettinger <python@rcn.com>
parents: 24280
diff changeset
871 };
37602
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
872
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
873 static PyObject *
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
874 tuple_iter(PyObject *seq)
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
875 {
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
876 tupleiterobject *it;
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
877
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
878 if (!PyTuple_Check(seq)) {
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
879 PyErr_BadInternalCall();
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
880 return NULL;
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
881 }
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
882 it = PyObject_GC_New(tupleiterobject, &PyTupleIter_Type);
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
883 if (it == NULL)
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
884 return NULL;
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
885 it->it_index = 0;
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
886 Py_INCREF(seq);
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
887 it->it_seq = (PyTupleObject *)seq;
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
888 _PyObject_GC_TRACK(it);
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
889 return (PyObject *)it;
ca95ad5b0fbc Remove "static forward" declaration. Move constructors
Martin v. Löwis <martin@v.loewis.de>
parents: 37596
diff changeset
890 }