Mercurial > cpython-lru_cache-weakref

annotate Objects/tupleobject.c @ 14150:302dfd53b3c8 legacy-trunk

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Make sure Thomas Wouters has enough to do. ;-) (Some of this is in-progress; this also serves as a reminded to me to check this out once it is written.)
author Fred Drake <fdrake@acm.org>
date Thu, 24 Aug 2000 00:50:27 +0000
parents 0f95c93f200b
children 6f6f965c5e2d
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1 /***********************************************************
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2 Copyright (c) 2000, BeOpen.com.
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3 Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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4 Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
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5 All rights reserved.
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6
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7 See the file "Misc/COPYRIGHT" for information on usage and
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8 redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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9 ******************************************************************/
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10
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11 /* Tuple object implementation */
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12
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13 #include "Python.h"
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14
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15 /* Speed optimization to avoid frequent malloc/free of small tuples */
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16 #ifndef MAXSAVESIZE
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17 #define MAXSAVESIZE 20 /* Largest tuple to save on free list */
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18 #endif
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19 #ifndef MAXSAVEDTUPLES
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20 #define MAXSAVEDTUPLES 2000 /* Maximum number of tuples of each size to save */
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21 #endif
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22
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23 #if MAXSAVESIZE > 0
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24 /* Entries 1 up to MAXSAVESIZE are free lists, entry 0 is the empty
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25 tuple () of which at most one instance will be allocated.
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26 */
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27 static PyTupleObject *free_tuples[MAXSAVESIZE];
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28 static int num_free_tuples[MAXSAVESIZE];
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29 #endif
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30 #ifdef COUNT_ALLOCS
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31 int fast_tuple_allocs;
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32 int tuple_zero_allocs;
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33 #endif
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34
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35 PyObject *
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36 PyTuple_New(register int size)
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37 {
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38 register int i;
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39 register PyTupleObject *op;
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40 if (size < 0) {
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41 PyErr_BadInternalCall();
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42 return NULL;
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43 }
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44 #if MAXSAVESIZE > 0
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45 if (size == 0 && free_tuples[0]) {
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46 op = free_tuples[0];
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47 Py_INCREF(op);
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48 #ifdef COUNT_ALLOCS
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49 tuple_zero_allocs++;
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50 #endif
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51 return (PyObject *) op;
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52 }
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53 if (0 < size && size < MAXSAVESIZE &&
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54 (op = free_tuples[size]) != NULL)
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55 {
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56 free_tuples[size] = (PyTupleObject *) op->ob_item[0];
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57 num_free_tuples[size]--;
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58 #ifdef COUNT_ALLOCS
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59 fast_tuple_allocs++;
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60 #endif
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61 /* PyObject_InitVar is inlined */
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62 #ifdef Py_TRACE_REFS
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63 op->ob_size = size;
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64 op->ob_type = &PyTuple_Type;
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65 #endif
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66 _Py_NewReference((PyObject *)op);
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67 }
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68 else
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69 #endif
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70 {
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71 int nbytes = size * sizeof(PyObject *);
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72 /* Check for overflow */
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73 if (nbytes / sizeof(PyObject *) != (size_t)size ||
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74 (nbytes += sizeof(PyTupleObject) - sizeof(PyObject *)
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75 + PyGC_HEAD_SIZE)
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76 <= 0)
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77 {
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78 return PyErr_NoMemory();
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79 }
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80 /* PyObject_NewVar is inlined */
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81 op = (PyTupleObject *) PyObject_MALLOC(nbytes);
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82 if (op == NULL)
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83 return PyErr_NoMemory();
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84 op = (PyTupleObject *) PyObject_FROM_GC(op);
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85 PyObject_INIT_VAR(op, &PyTuple_Type, size);
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86 }
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87 for (i = 0; i < size; i++)
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88 op->ob_item[i] = NULL;
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89 #if MAXSAVESIZE > 0
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90 if (size == 0) {
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91 free_tuples[0] = op;
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92 ++num_free_tuples[0];
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93 Py_INCREF(op); /* extra INCREF so that this is never freed */
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94 }
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95 #endif
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96 PyObject_GC_Init(op);
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97 return (PyObject *) op;
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98 }
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99
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100 int
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101 PyTuple_Size(register PyObject *op)
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102 {
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103 if (!PyTuple_Check(op)) {
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104 PyErr_BadInternalCall();
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105 return -1;
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106 }
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107 else
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108 return ((PyTupleObject *)op)->ob_size;
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109 }
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110
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111 PyObject *
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112 PyTuple_GetItem(register PyObject *op, register int i)
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113 {
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114 if (!PyTuple_Check(op)) {
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115 PyErr_BadInternalCall();
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116 return NULL;
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117 }
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118 if (i < 0 || i >= ((PyTupleObject *)op) -> ob_size) {
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119 PyErr_SetString(PyExc_IndexError, "tuple index out of range");
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120 return NULL;
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121 }
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122 return ((PyTupleObject *)op) -> ob_item[i];
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123 }
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124
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125 int
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126 PyTuple_SetItem(register PyObject *op, register int i, PyObject *newitem)
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127 {
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128 register PyObject *olditem;
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129 register PyObject **p;
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130 if (!PyTuple_Check(op) || op->ob_refcnt != 1) {
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131 Py_XDECREF(newitem);
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132 PyErr_BadInternalCall();
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133 return -1;
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134 }
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135 if (i < 0 || i >= ((PyTupleObject *)op) -> ob_size) {
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136 Py_XDECREF(newitem);
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137 PyErr_SetString(PyExc_IndexError,
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138 "tuple assignment index out of range");
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139 return -1;
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140 }
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141 p = ((PyTupleObject *)op) -> ob_item + i;
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142 olditem = *p;
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143 *p = newitem;
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144 Py_XDECREF(olditem);
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145 return 0;
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146 }
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147
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148 /* Methods */
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149
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150 static void
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151 tupledealloc(register PyTupleObject *op)
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152 {
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153 register int i;
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154 register int len = op->ob_size;
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155 Py_TRASHCAN_SAFE_BEGIN(op)
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156 PyObject_GC_Fini(op);
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157 if (len > 0) {
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158 i = len;
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159 while (--i >= 0)
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160 Py_XDECREF(op->ob_item[i]);
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161 #if MAXSAVESIZE > 0
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162 if (len < MAXSAVESIZE && num_free_tuples[len] < MAXSAVEDTUPLES) {
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163 op->ob_item[0] = (PyObject *) free_tuples[len];
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164 num_free_tuples[len]++;
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165 free_tuples[len] = op;
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166 goto done; /* return */
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167 }
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168 #endif
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169 }
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170 op = (PyTupleObject *) PyObject_AS_GC(op);
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171 PyObject_DEL(op);
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172 done:
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173 Py_TRASHCAN_SAFE_END(op)
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174 }
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175
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176 static int
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177 tupleprint(PyTupleObject *op, FILE *fp, int flags)
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178 {
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179 int i;
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180 fprintf(fp, "(");
288
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181 for (i = 0; i < op->ob_size; i++) {
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182 if (i > 0)
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183 fprintf(fp, ", ");
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184 if (PyObject_Print(op->ob_item[i], fp, 0) != 0)
288
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185 return -1;
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186 }
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187 if (op->ob_size == 1)
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188 fprintf(fp, ",");
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189 fprintf(fp, ")");
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190 return 0;
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191 }
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192
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193 static PyObject *
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194 tuplerepr(PyTupleObject *v)
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195 {
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196 PyObject *s, *comma;
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197 int i;
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198 s = PyString_FromString("(");
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199 comma = PyString_FromString(", ");
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200 for (i = 0; i < v->ob_size && s != NULL; i++) {
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201 if (i > 0)
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202 PyString_Concat(&s, comma);
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203 PyString_ConcatAndDel(&s, PyObject_Repr(v->ob_item[i]));
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204 }
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205 Py_DECREF(comma);
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206 if (v->ob_size == 1)
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207 PyString_ConcatAndDel(&s, PyString_FromString(","));
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208 PyString_ConcatAndDel(&s, PyString_FromString(")"));
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209 return s;
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210 }
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211
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212 static int
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213 tuplecompare(register PyTupleObject *v, register PyTupleObject *w)
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214 {
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215 register int len =
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216 (v->ob_size < w->ob_size) ? v->ob_size : w->ob_size;
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217 register int i;
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218 for (i = 0; i < len; i++) {
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219 int cmp = PyObject_Compare(v->ob_item[i], w->ob_item[i]);
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220 if (cmp != 0)
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221 return cmp;
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222 }
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223 return v->ob_size - w->ob_size;
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224 }
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225
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226 static long
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227 tuplehash(PyTupleObject *v)
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228 {
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229 register long x, y;
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230 register int len = v->ob_size;
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231 register PyObject **p;
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232 x = 0x345678L;
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233 p = v->ob_item;
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234 while (--len >= 0) {
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235 y = PyObject_Hash(*p++);
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236 if (y == -1)
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237 return -1;
4733
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238 x = (1000003*x) ^ y;
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diff changeset
239 }
1cabc2b6c970 * Changed all copyright messages to include 1993.
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240 x ^= v->ob_size;
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diff changeset
241 if (x == -1)
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242 x = -2;
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243 return x;
1cabc2b6c970 * Changed all copyright messages to include 1993.
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244 }
1cabc2b6c970 * Changed all copyright messages to include 1993.
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245
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246 static int
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247 tuplelength(PyTupleObject *a)
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248 {
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249 return a->ob_size;
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250 }
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251
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diff changeset
252 static int
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253 tuplecontains(PyTupleObject *a, PyObject *el)
12516
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254 {
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diff changeset
255 int i, cmp;
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256
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257 for (i = 0; i < a->ob_size; ++i) {
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258 cmp = PyObject_Compare(el, PyTuple_GET_ITEM(a, i));
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259 if (cmp == 0)
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260 return 1;
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diff changeset
261 if (PyErr_Occurred())
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262 return -1;
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263 }
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264 return 0;
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265 }
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266
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267 static PyObject *
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268 tupleitem(register PyTupleObject *a, register int i)
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269 {
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270 if (i < 0 || i >= a->ob_size) {
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271 PyErr_SetString(PyExc_IndexError, "tuple index out of range");
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272 return NULL;
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273 }
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274 Py_INCREF(a->ob_item[i]);
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275 return a->ob_item[i];
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276 }
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277
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278 static PyObject *
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279 tupleslice(register PyTupleObject *a, register int ilow, register int ihigh)
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280 {
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281 register PyTupleObject *np;
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282 register int i;
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283 if (ilow < 0)
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284 ilow = 0;
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285 if (ihigh > a->ob_size)
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286 ihigh = a->ob_size;
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287 if (ihigh < ilow)
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288 ihigh = ilow;
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289 if (ilow == 0 && ihigh == a->ob_size) {
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290 /* XXX can only do this if tuples are immutable! */
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291 Py_INCREF(a);
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292 return (PyObject *)a;
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293 }
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294 np = (PyTupleObject *)PyTuple_New(ihigh - ilow);
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295 if (np == NULL)
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296 return NULL;
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297 for (i = ilow; i < ihigh; i++) {
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298 PyObject *v = a->ob_item[i];
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299 Py_INCREF(v);
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300 np->ob_item[i - ilow] = v;
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301 }
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302 return (PyObject *)np;
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303 }
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304
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305 PyObject *
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306 PyTuple_GetSlice(PyObject *op, int i, int j)
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307 {
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308 if (op == NULL || !PyTuple_Check(op)) {
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309 PyErr_BadInternalCall();
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310 return NULL;
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311 }
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312 return tupleslice((PyTupleObject *)op, i, j);
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313 }
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314
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315 static PyObject *
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316 tupleconcat(register PyTupleObject *a, register PyObject *bb)
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317 {
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318 register int size;
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319 register int i;
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320 PyTupleObject *np;
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321 if (!PyTuple_Check(bb)) {
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322 PyErr_Format(PyExc_TypeError,
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323 "can only concatenate tuple (not \"%.200s\") to tuple",
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324 bb->ob_type->tp_name);
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325 return NULL;
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326 }
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327 #define b ((PyTupleObject *)bb)
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328 size = a->ob_size + b->ob_size;
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329 np = (PyTupleObject *) PyTuple_New(size);
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330 if (np == NULL) {
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331 return NULL;
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332 }
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333 for (i = 0; i < a->ob_size; i++) {
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334 PyObject *v = a->ob_item[i];
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335 Py_INCREF(v);
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336 np->ob_item[i] = v;
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337 }
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338 for (i = 0; i < b->ob_size; i++) {
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339 PyObject *v = b->ob_item[i];
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340 Py_INCREF(v);
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341 np->ob_item[i + a->ob_size] = v;
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342 }
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343 return (PyObject *)np;
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344 #undef b
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345 }
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346
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347 static PyObject *
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348 tuplerepeat(PyTupleObject *a, int n)
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349 {
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350 int i, j;
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351 int size;
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352 PyTupleObject *np;
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353 PyObject **p;
258
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354 if (n < 0)
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355 n = 0;
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356 if (a->ob_size == 0 || n == 1) {
258
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357 /* Since tuples are immutable, we can return a shared
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358 copy in this case */
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359 Py_INCREF(a);
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360 return (PyObject *)a;
258
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361 }
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362 size = a->ob_size * n;
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363 if (size/a->ob_size != n)
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364 return PyErr_NoMemory();
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365 np = (PyTupleObject *) PyTuple_New(size);
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366 if (np == NULL)
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367 return NULL;
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368 p = np->ob_item;
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369 for (i = 0; i < n; i++) {
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370 for (j = 0; j < a->ob_size; j++) {
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371 *p = a->ob_item[j];
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372 Py_INCREF(*p);
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373 p++;
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374 }
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375 }
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376 return (PyObject *) np;
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377 }
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378
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379 static int
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380 tupletraverse(PyTupleObject *o, visitproc visit, void *arg)
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381 {
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382 int i, err;
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383 PyObject *x;
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diff changeset
384
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diff changeset
385 for (i = o->ob_size; --i >= 0; ) {
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diff changeset
386 x = o->ob_item[i];
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diff changeset
387 if (x != NULL) {
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diff changeset
388 err = visit(x, arg);
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diff changeset
389 if (err)
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diff changeset
390 return err;
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diff changeset
391 }
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diff changeset
392 }
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393 return 0;
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diff changeset
394 }
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diff changeset
395
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diff changeset
396 static PySequenceMethods tuple_as_sequence = {
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397 (inquiry)tuplelength, /*sq_length*/
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diff changeset
398 (binaryfunc)tupleconcat, /*sq_concat*/
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diff changeset
399 (intargfunc)tuplerepeat, /*sq_repeat*/
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400 (intargfunc)tupleitem, /*sq_item*/
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401 (intintargfunc)tupleslice, /*sq_slice*/
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402 0, /*sq_ass_item*/
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403 0, /*sq_ass_slice*/
12516
e6e914d5b207 add list_contains and tuplecontains: efficient implementations of tp_contains
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parents: 12439
diff changeset
404 (objobjproc)tuplecontains, /*sq_contains*/
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405 };
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406
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407 PyTypeObject PyTuple_Type = {
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408 PyObject_HEAD_INIT(&PyType_Type)
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409 0,
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410 "tuple",
13183
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diff changeset
411 sizeof(PyTupleObject) - sizeof(PyObject *) + PyGC_HEAD_SIZE,
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diff changeset
412 sizeof(PyObject *),
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diff changeset
413 (destructor)tupledealloc, /*tp_dealloc*/
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diff changeset
414 (printfunc)tupleprint, /*tp_print*/
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415 0, /*tp_getattr*/
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diff changeset
416 0, /*tp_setattr*/
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diff changeset
417 (cmpfunc)tuplecompare, /*tp_compare*/
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diff changeset
418 (reprfunc)tuplerepr, /*tp_repr*/
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419 0, /*tp_as_number*/
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parents:
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420 &tuple_as_sequence, /*tp_as_sequence*/
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diff changeset
421 0, /*tp_as_mapping*/
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diff changeset
422 (hashfunc)tuplehash, /*tp_hash*/
12925
128e7b994505 Thomas Wouters <thomas@xs4all.net>:
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parents: 12816
diff changeset
423 0, /*tp_call*/
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parents: 12816
diff changeset
424 0, /*tp_str*/
128e7b994505 Thomas Wouters <thomas@xs4all.net>:
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parents: 12816
diff changeset
425 0, /*tp_getattro*/
128e7b994505 Thomas Wouters <thomas@xs4all.net>:
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parents: 12816
diff changeset
426 0, /*tp_setattro*/
128e7b994505 Thomas Wouters <thomas@xs4all.net>:
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parents: 12816
diff changeset
427 0, /*tp_as_buffer*/
12993
8f79c5b69e0a part 2 of Neil Schemenauer's GC patches:
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parents: 12990
diff changeset
428 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_GC, /*tp_flags*/
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diff changeset
429 0, /*tp_doc*/
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diff changeset
430 (traverseproc)tupletraverse, /* tp_traverse */
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diff changeset
431 };
1369
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diff changeset
432
89e1e5d9ccbf * compile.[ch]: support for lambda()
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diff changeset
433 /* The following function breaks the notion that tuples are immutable:
89e1e5d9ccbf * compile.[ch]: support for lambda()
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parents: 1352
diff changeset
434 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
435 is only one module referencing the object. You can also think of it
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
436 as creating a new tuple object and destroying the old one, only
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
437 more efficiently. In any case, don't use this if the tuple may
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
438 already be known to some other part of the code...
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
439 If last_is_sticky is set, the tuple will grow or shrink at the
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
440 front, otherwise it will grow or shrink at the end. */
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
441
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
442 int
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
443 _PyTuple_Resize(PyObject **pv, int newsize, int last_is_sticky)
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
444 {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
445 register PyTupleObject *v;
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
446 register PyTupleObject *sv;
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
447 int i;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
448 int sizediff;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
449
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
450 v = (PyTupleObject *) *pv;
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
451 if (v == NULL || !PyTuple_Check(v) || v->ob_refcnt != 1) {
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
452 *pv = 0;
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
453 Py_DECREF(v);
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
454 PyErr_BadInternalCall();
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
455 return -1;
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
456 }
2888
6abd14485884 better err checks in resizetuple
Guido van Rossum <guido@python.org>
parents: 2612
diff changeset
457 sizediff = newsize - v->ob_size;
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
458 if (sizediff == 0)
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
459 return 0;
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
460 /* XXX UNREF/NEWREF interface should be more symmetrical */
3586
36cc3ee54f28 new debugger symbol names
Guido van Rossum <guido@python.org>
parents: 2888
diff changeset
461 #ifdef Py_REF_DEBUG
2612
ca6b60d4ea90 fix dusty debugging macros
Guido van Rossum <guido@python.org>
parents: 2504
diff changeset
462 --_Py_RefTotal;
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
463 #endif
11673
5e6e9e893acd The rest of the changes by Trent Mick and Dale Nagata for warning-free
Guido van Rossum <guido@python.org>
parents: 11128
diff changeset
464 _Py_ForgetReference((PyObject *)v);
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
465 if (last_is_sticky && sizediff < 0) {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
466 /* shrinking:
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
467 move entries to the front and zero moved entries */
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
468 for (i = 0; i < newsize; i++) {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
469 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
470 v->ob_item[i] = v->ob_item[i - sizediff];
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
471 v->ob_item[i - sizediff] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
472 }
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
473 }
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
474 for (i = newsize; i < v->ob_size; i++) {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 4733
diff changeset
475 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
476 v->ob_item[i] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
477 }
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
478 #if MAXSAVESIZE > 0
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
479 if (newsize == 0 && free_tuples[0]) {
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
480 num_free_tuples[0]--;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
481 sv = free_tuples[0];
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
482 sv->ob_size = 0;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
483 Py_INCREF(sv);
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
484 #ifdef COUNT_ALLOCS
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
485 tuple_zero_allocs++;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
486 #endif
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
487 tupledealloc(v);
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
488 *pv = (PyObject*) sv;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
489 return 0;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
490 }
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
491 if (0 < newsize && newsize < MAXSAVESIZE &&
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
492 (sv = free_tuples[newsize]) != NULL)
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
493 {
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
494 free_tuples[newsize] = (PyTupleObject *) sv->ob_item[0];
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
495 num_free_tuples[newsize]--;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
496 #ifdef COUNT_ALLOCS
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
497 fast_tuple_allocs++;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
498 #endif
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
499 #ifdef Py_TRACE_REFS
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
500 sv->ob_type = &PyTuple_Type;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
501 #endif
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
502 for (i = 0; i < newsize; ++i){
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
503 sv->ob_item[i] = v->ob_item[i];
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
504 v->ob_item[i] = NULL;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
505 }
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
506 sv->ob_size = v->ob_size;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
507 tupledealloc(v);
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
508 *pv = (PyObject *) sv;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
509 } else
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
510 #endif
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
511 {
13183
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
512 #ifdef WITH_CYCLE_GC
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
513 PyGC_Head *g = PyObject_AS_GC((PyObject *)v);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
514 PyObject_GC_Fini((PyObject *)v);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
515 sv = (PyTupleObject *)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
516 PyObject_REALLOC((char *)g, sizeof(PyTupleObject)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
517 + PyGC_HEAD_SIZE
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
518 + newsize * sizeof(PyObject *));
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
519 if (g == NULL) {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
520 sv = NULL;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
521 } else {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
522 sv = (PyTupleObject *)PyObject_FROM_GC(g);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
523 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
524 #else
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
525 sv = (PyTupleObject *)
12993
8f79c5b69e0a part 2 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12990
diff changeset
526 PyObject_REALLOC((char *)v, sizeof(PyTupleObject)
13183
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
527 + PyGC_HEAD_SIZE
12993
8f79c5b69e0a part 2 of Neil Schemenauer's GC patches:
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12990
diff changeset
528 + newsize * sizeof(PyObject *));
13183
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
529 #endif
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
530 *pv = (PyObject *) sv;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
531 if (sv == NULL) {
13183
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
532 PyObject_GC_Init((PyObject *)v);
13265
e8bb0d536633 Neil Schemenauer: small fixes for GC
Guido van Rossum <guido@python.org>
parents: 13256
diff changeset
533 v = (PyTupleObject *) PyObject_AS_GC(v);
12576
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 12516
diff changeset
534 PyObject_DEL(v);
12439
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
535 PyErr_NoMemory();
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
536 return -1;
456869eaa7d5 Patch by Charles G Waldman to avoid a sneaky memory leak in
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
537 }
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
538 }
11673
5e6e9e893acd The rest of the changes by Trent Mick and Dale Nagata for warning-free
Guido van Rossum <guido@python.org>
parents: 11128
diff changeset
539 _Py_NewReference((PyObject *)sv);
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
540 for (i = sv->ob_size; i < newsize; i++)
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
541 sv->ob_item[i] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
542 if (last_is_sticky && sizediff > 0) {
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
543 /* growing: move entries to the end and zero moved entries */
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
544 for (i = newsize - 1; i >= sizediff; i--) {
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
545 sv->ob_item[i] = sv->ob_item[i - sizediff];
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
546 sv->ob_item[i - sizediff] = NULL;
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
547 }
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
548 }
13183
54bffdddc0ef final patches from Neil Schemenauer for garbage collection
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 12993
diff changeset
549 PyObject_GC_Init(sv);
1380
a4aa83012af3 Fixed bugs in resizetuple and extended the interface.
Sjoerd Mullender <sjoerd@acm.org>
parents: 1369
diff changeset
550 sv->ob_size = newsize;
1369
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
551 return 0;
89e1e5d9ccbf * compile.[ch]: support for lambda()
Guido van Rossum <guido@python.org>
parents: 1352
diff changeset
552 }
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
553
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
554 void
13459
0f95c93f200b ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13265
diff changeset
555 PyTuple_Fini(void)
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
556 {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
557 #if MAXSAVESIZE > 0
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
558 int i;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
559
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
560 Py_XDECREF(free_tuples[0]);
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
561 free_tuples[0] = NULL;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
562
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
563 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
564 PyTupleObject *p, *q;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
565 p = free_tuples[i];
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
566 free_tuples[i] = NULL;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
567 while (p) {
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
568 q = p;
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
569 p = (PyTupleObject *)(p->ob_item[0]);
13265
e8bb0d536633 Neil Schemenauer: small fixes for GC
Guido van Rossum <guido@python.org>
parents: 13256
diff changeset
570 q = (PyTupleObject *) PyObject_AS_GC(q);
12576
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 12516
diff changeset
571 PyObject_DEL(q);
5936
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
572 }
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
573 }
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
574 #endif
80d24364b932 Added _Fini() routines to free up some memory
Guido van Rossum <guido@python.org>
parents: 5396
diff changeset
575 }