Mercurial > cpython-lru_cache-weakref

annotate Modules/itertoolsmodule.c @ 85327:5b5ef012cd4e

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Issue #16809: Fixed some tkinter incompabilities with Tcl/Tk 8.6.
author Serhiy Storchaka <storchaka@gmail.com>
date Thu, 22 Aug 2013 17:53:06 +0300
parents 7ecca1a98220
children 8e174ee0575a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 #include "Python.h"
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3 #include "structmember.h"
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4
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5 /* Itertools module written and maintained
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6 by Raymond D. Hettinger <python@rcn.com>
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7 Copyright (c) 2003 Python Software Foundation.
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8 All rights reserved.
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9 */
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10
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11
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12 /* groupby object ***********************************************************/
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13
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14 typedef struct {
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15 PyObject_HEAD
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16 PyObject *it;
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17 PyObject *keyfunc;
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18 PyObject *tgtkey;
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19 PyObject *currkey;
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20 PyObject *currvalue;
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21 } groupbyobject;
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22
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23 static PyTypeObject groupby_type;
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24 static PyObject *_grouper_create(groupbyobject *, PyObject *);
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25
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26 static PyObject *
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27 groupby_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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28 {
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29 static char *kwargs[] = {"iterable", "key", NULL};
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30 groupbyobject *gbo;
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31 PyObject *it, *keyfunc = Py_None;
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32
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33 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:groupby", kwargs,
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34 &it, &keyfunc))
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35 return NULL;
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36
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37 gbo = (groupbyobject *)type->tp_alloc(type, 0);
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38 if (gbo == NULL)
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39 return NULL;
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40 gbo->tgtkey = NULL;
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41 gbo->currkey = NULL;
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42 gbo->currvalue = NULL;
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43 gbo->keyfunc = keyfunc;
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44 Py_INCREF(keyfunc);
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45 gbo->it = PyObject_GetIter(it);
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46 if (gbo->it == NULL) {
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47 Py_DECREF(gbo);
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48 return NULL;
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49 }
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50 return (PyObject *)gbo;
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51 }
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52
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53 static void
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54 groupby_dealloc(groupbyobject *gbo)
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55 {
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56 PyObject_GC_UnTrack(gbo);
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57 Py_XDECREF(gbo->it);
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58 Py_XDECREF(gbo->keyfunc);
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59 Py_XDECREF(gbo->tgtkey);
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60 Py_XDECREF(gbo->currkey);
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61 Py_XDECREF(gbo->currvalue);
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62 Py_TYPE(gbo)->tp_free(gbo);
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63 }
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64
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65 static int
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66 groupby_traverse(groupbyobject *gbo, visitproc visit, void *arg)
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67 {
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68 Py_VISIT(gbo->it);
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69 Py_VISIT(gbo->keyfunc);
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70 Py_VISIT(gbo->tgtkey);
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71 Py_VISIT(gbo->currkey);
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72 Py_VISIT(gbo->currvalue);
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73 return 0;
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74 }
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75
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76 static PyObject *
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77 groupby_next(groupbyobject *gbo)
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78 {
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79 PyObject *newvalue, *newkey, *r, *grouper, *tmp;
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80
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81 /* skip to next iteration group */
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82 for (;;) {
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83 if (gbo->currkey == NULL)
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84 /* pass */;
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85 else if (gbo->tgtkey == NULL)
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86 break;
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87 else {
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88 int rcmp;
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89
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90 rcmp = PyObject_RichCompareBool(gbo->tgtkey,
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91 gbo->currkey, Py_EQ);
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92 if (rcmp == -1)
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93 return NULL;
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94 else if (rcmp == 0)
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95 break;
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96 }
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97
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98 newvalue = PyIter_Next(gbo->it);
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99 if (newvalue == NULL)
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100 return NULL;
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101
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102 if (gbo->keyfunc == Py_None) {
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103 newkey = newvalue;
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104 Py_INCREF(newvalue);
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105 } else {
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106 newkey = PyObject_CallFunctionObjArgs(gbo->keyfunc,
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107 newvalue, NULL);
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108 if (newkey == NULL) {
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109 Py_DECREF(newvalue);
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110 return NULL;
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111 }
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112 }
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113
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114 tmp = gbo->currkey;
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115 gbo->currkey = newkey;
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116 Py_XDECREF(tmp);
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117
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118 tmp = gbo->currvalue;
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119 gbo->currvalue = newvalue;
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120 Py_XDECREF(tmp);
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121 }
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122
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123 Py_INCREF(gbo->currkey);
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124 tmp = gbo->tgtkey;
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125 gbo->tgtkey = gbo->currkey;
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126 Py_XDECREF(tmp);
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127
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128 grouper = _grouper_create(gbo, gbo->tgtkey);
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129 if (grouper == NULL)
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130 return NULL;
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131
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132 r = PyTuple_Pack(2, gbo->currkey, grouper);
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133 Py_DECREF(grouper);
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134 return r;
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135 }
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136
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137 static PyObject *
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138 groupby_reduce(groupbyobject *lz)
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139 {
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140 /* reduce as a 'new' call with an optional 'setstate' if groupby
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141 * has started
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142 */
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143 PyObject *value;
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144 if (lz->tgtkey && lz->currkey && lz->currvalue)
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145 value = Py_BuildValue("O(OO)(OOO)", Py_TYPE(lz),
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146 lz->it, lz->keyfunc, lz->currkey, lz->currvalue, lz->tgtkey);
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147 else
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148 value = Py_BuildValue("O(OO)", Py_TYPE(lz),
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149 lz->it, lz->keyfunc);
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150
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151 return value;
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152 }
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153
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154 PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
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155
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156 static PyObject *
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157 groupby_setstate(groupbyobject *lz, PyObject *state)
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158 {
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159 PyObject *currkey, *currvalue, *tgtkey;
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160 if (!PyArg_ParseTuple(state, "OOO", &currkey, &currvalue, &tgtkey))
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161 return NULL;
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162 Py_CLEAR(lz->currkey);
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163 lz->currkey = currkey;
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164 Py_INCREF(lz->currkey);
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165 Py_CLEAR(lz->currvalue);
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166 lz->currvalue = currvalue;
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167 Py_INCREF(lz->currvalue);
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168 Py_CLEAR(lz->tgtkey);
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169 lz->tgtkey = tgtkey;
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170 Py_INCREF(lz->tgtkey);
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171 Py_RETURN_NONE;
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172 }
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173
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174 PyDoc_STRVAR(setstate_doc, "Set state information for unpickling.");
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175
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176 static PyMethodDef groupby_methods[] = {
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177 {"__reduce__", (PyCFunction)groupby_reduce, METH_NOARGS,
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178 reduce_doc},
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179 {"__setstate__", (PyCFunction)groupby_setstate, METH_O,
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180 setstate_doc},
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181 {NULL, NULL} /* sentinel */
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182 };
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183
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184 PyDoc_STRVAR(groupby_doc,
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185 "groupby(iterable[, keyfunc]) -> create an iterator which returns\n\
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186 (key, sub-iterator) grouped by each value of key(value).\n");
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187
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188 static PyTypeObject groupby_type = {
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189 PyVarObject_HEAD_INIT(NULL, 0)
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190 "itertools.groupby", /* tp_name */
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191 sizeof(groupbyobject), /* tp_basicsize */
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192 0, /* tp_itemsize */
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193 /* methods */
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194 (destructor)groupby_dealloc, /* tp_dealloc */
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195 0, /* tp_print */
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196 0, /* tp_getattr */
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197 0, /* tp_setattr */
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198 0, /* tp_reserved */
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199 0, /* tp_repr */
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200 0, /* tp_as_number */
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201 0, /* tp_as_sequence */
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202 0, /* tp_as_mapping */
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203 0, /* tp_hash */
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204 0, /* tp_call */
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205 0, /* tp_str */
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206 PyObject_GenericGetAttr, /* tp_getattro */
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207 0, /* tp_setattro */
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208 0, /* tp_as_buffer */
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209 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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210 Py_TPFLAGS_BASETYPE, /* tp_flags */
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211 groupby_doc, /* tp_doc */
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212 (traverseproc)groupby_traverse, /* tp_traverse */
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213 0, /* tp_clear */
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214 0, /* tp_richcompare */
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215 0, /* tp_weaklistoffset */
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216 PyObject_SelfIter, /* tp_iter */
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217 (iternextfunc)groupby_next, /* tp_iternext */
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218 groupby_methods, /* tp_methods */
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219 0, /* tp_members */
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220 0, /* tp_getset */
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221 0, /* tp_base */
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222 0, /* tp_dict */
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223 0, /* tp_descr_get */
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224 0, /* tp_descr_set */
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225 0, /* tp_dictoffset */
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226 0, /* tp_init */
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227 0, /* tp_alloc */
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228 groupby_new, /* tp_new */
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229 PyObject_GC_Del, /* tp_free */
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230 };
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231
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232
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233 /* _grouper object (internal) ************************************************/
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234
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235 typedef struct {
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236 PyObject_HEAD
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237 PyObject *parent;
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238 PyObject *tgtkey;
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239 } _grouperobject;
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240
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241 static PyTypeObject _grouper_type;
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242
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243 static PyObject *
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244 _grouper_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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245 {
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246 PyObject *parent, *tgtkey;
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247
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248 if (!PyArg_ParseTuple(args, "O!O", &groupby_type, &parent, &tgtkey))
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249 return NULL;
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250
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251 return _grouper_create((groupbyobject*) parent, tgtkey);
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252 }
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253
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254 static PyObject *
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255 _grouper_create(groupbyobject *parent, PyObject *tgtkey)
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256 {
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257 _grouperobject *igo;
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258
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259 igo = PyObject_GC_New(_grouperobject, &_grouper_type);
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260 if (igo == NULL)
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261 return NULL;
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262 igo->parent = (PyObject *)parent;
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263 Py_INCREF(parent);
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264 igo->tgtkey = tgtkey;
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265 Py_INCREF(tgtkey);
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266
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267 PyObject_GC_Track(igo);
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268 return (PyObject *)igo;
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269 }
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270
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271 static void
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272 _grouper_dealloc(_grouperobject *igo)
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273 {
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274 PyObject_GC_UnTrack(igo);
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275 Py_DECREF(igo->parent);
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276 Py_DECREF(igo->tgtkey);
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277 PyObject_GC_Del(igo);
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278 }
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279
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280 static int
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281 _grouper_traverse(_grouperobject *igo, visitproc visit, void *arg)
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282 {
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283 Py_VISIT(igo->parent);
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284 Py_VISIT(igo->tgtkey);
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285 return 0;
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286 }
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287
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288 static PyObject *
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289 _grouper_next(_grouperobject *igo)
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290 {
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291 groupbyobject *gbo = (groupbyobject *)igo->parent;
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292 PyObject *newvalue, *newkey, *r;
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293 int rcmp;
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294
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295 if (gbo->currvalue == NULL) {
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296 newvalue = PyIter_Next(gbo->it);
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297 if (newvalue == NULL)
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298 return NULL;
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299
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300 if (gbo->keyfunc == Py_None) {
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301 newkey = newvalue;
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302 Py_INCREF(newvalue);
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303 } else {
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304 newkey = PyObject_CallFunctionObjArgs(gbo->keyfunc,
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305 newvalue, NULL);
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306 if (newkey == NULL) {
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307 Py_DECREF(newvalue);
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308 return NULL;
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309 }
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310 }
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311
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312 assert(gbo->currkey == NULL);
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313 gbo->currkey = newkey;
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314 gbo->currvalue = newvalue;
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315 }
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316
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317 assert(gbo->currkey != NULL);
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318 rcmp = PyObject_RichCompareBool(igo->tgtkey, gbo->currkey, Py_EQ);
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319 if (rcmp <= 0)
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320 /* got any error or current group is end */
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321 return NULL;
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322
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323 r = gbo->currvalue;
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324 gbo->currvalue = NULL;
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325 Py_CLEAR(gbo->currkey);
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326
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327 return r;
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328 }
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329
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330 static PyObject *
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331 _grouper_reduce(_grouperobject *lz)
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332 {
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333 return Py_BuildValue("O(OO)", Py_TYPE(lz),
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334 lz->parent, lz->tgtkey);
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335 }
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336
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337 static PyMethodDef _grouper_methods[] = {
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338 {"__reduce__", (PyCFunction)_grouper_reduce, METH_NOARGS,
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339 reduce_doc},
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340 {NULL, NULL} /* sentinel */
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341 };
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342
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343
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344 static PyTypeObject _grouper_type = {
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345 PyVarObject_HEAD_INIT(NULL, 0)
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346 "itertools._grouper", /* tp_name */
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347 sizeof(_grouperobject), /* tp_basicsize */
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348 0, /* tp_itemsize */
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349 /* methods */
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350 (destructor)_grouper_dealloc, /* tp_dealloc */
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351 0, /* tp_print */
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352 0, /* tp_getattr */
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353 0, /* tp_setattr */
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354 0, /* tp_reserved */
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355 0, /* tp_repr */
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356 0, /* tp_as_number */
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357 0, /* tp_as_sequence */
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358 0, /* tp_as_mapping */
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359 0, /* tp_hash */
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360 0, /* tp_call */
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361 0, /* tp_str */
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362 PyObject_GenericGetAttr, /* tp_getattro */
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363 0, /* tp_setattro */
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364 0, /* tp_as_buffer */
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365 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
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366 0, /* tp_doc */
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367 (traverseproc)_grouper_traverse,/* tp_traverse */
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368 0, /* tp_clear */
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369 0, /* tp_richcompare */
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370 0, /* tp_weaklistoffset */
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371 PyObject_SelfIter, /* tp_iter */
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372 (iternextfunc)_grouper_next, /* tp_iternext */
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373 _grouper_methods, /* tp_methods */
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374 0, /* tp_members */
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375 0, /* tp_getset */
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376 0, /* tp_base */
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377 0, /* tp_dict */
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378 0, /* tp_descr_get */
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379 0, /* tp_descr_set */
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380 0, /* tp_dictoffset */
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381 0, /* tp_init */
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382 0, /* tp_alloc */
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383 _grouper_new, /* tp_new */
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384 PyObject_GC_Del, /* tp_free */
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385 };
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386
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387
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388
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389 /* tee object and with supporting function and objects ***************/
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390
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391 /* The teedataobject pre-allocates space for LINKCELLS number of objects.
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392 To help the object fit neatly inside cache lines (space for 16 to 32
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393 pointers), the value should be a multiple of 16 minus space for
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394 the other structure members including PyHEAD overhead. The larger the
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395 value, the less memory overhead per object and the less time spent
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396 allocating/deallocating new links. The smaller the number, the less
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397 wasted space and the more rapid freeing of older data.
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398 */
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399 #define LINKCELLS 57
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400
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401 typedef struct {
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402 PyObject_HEAD
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403 PyObject *it;
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404 int numread;
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405 PyObject *nextlink;
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406 PyObject *(values[LINKCELLS]);
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407 } teedataobject;
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408
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409 typedef struct {
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410 PyObject_HEAD
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411 teedataobject *dataobj;
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412 int index;
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413 PyObject *weakreflist;
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414 } teeobject;
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415
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416 static PyTypeObject teedataobject_type;
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417
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418 static PyObject *
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419 teedataobject_newinternal(PyObject *it)
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420 {
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421 teedataobject *tdo;
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422
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423 tdo = PyObject_GC_New(teedataobject, &teedataobject_type);
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424 if (tdo == NULL)
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425 return NULL;
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426
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427 tdo->numread = 0;
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428 tdo->nextlink = NULL;
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429 Py_INCREF(it);
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430 tdo->it = it;
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431 PyObject_GC_Track(tdo);
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432 return (PyObject *)tdo;
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433 }
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434
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435 static PyObject *
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436 teedataobject_jumplink(teedataobject *tdo)
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437 {
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438 if (tdo->nextlink == NULL)
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439 tdo->nextlink = teedataobject_newinternal(tdo->it);
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440 Py_XINCREF(tdo->nextlink);
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441 return tdo->nextlink;
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442 }
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443
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444 static PyObject *
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445 teedataobject_getitem(teedataobject *tdo, int i)
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446 {
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447 PyObject *value;
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448
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449 assert(i < LINKCELLS);
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450 if (i < tdo->numread)
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451 value = tdo->values[i];
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452 else {
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453 /* this is the lead iterator, so fetch more data */
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454 assert(i == tdo->numread);
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455 value = PyIter_Next(tdo->it);
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456 if (value == NULL)
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457 return NULL;
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458 tdo->numread++;
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459 tdo->values[i] = value;
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460 }
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461 Py_INCREF(value);
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462 return value;
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463 }
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464
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465 static int
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466 teedataobject_traverse(teedataobject *tdo, visitproc visit, void * arg)
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467 {
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468 int i;
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469 Py_VISIT(tdo->it);
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470 for (i = 0; i < tdo->numread; i++)
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471 Py_VISIT(tdo->values[i]);
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472 Py_VISIT(tdo->nextlink);
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473 return 0;
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474 }
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475
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476 static void
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477 teedataobject_safe_decref(PyObject *obj)
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478 {
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479 while (obj && Py_TYPE(obj) == &teedataobject_type &&
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480 Py_REFCNT(obj) == 1) {
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481 PyObject *nextlink = ((teedataobject *)obj)->nextlink;
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482 ((teedataobject *)obj)->nextlink = NULL;
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483 Py_DECREF(obj);
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484 obj = nextlink;
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485 }
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486 Py_XDECREF(obj);
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487 }
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488
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489 static int
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490 teedataobject_clear(teedataobject *tdo)
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491 {
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492 int i;
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493 PyObject *tmp;
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494
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495 Py_CLEAR(tdo->it);
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496 for (i=0 ; i<tdo->numread ; i++)
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497 Py_CLEAR(tdo->values[i]);
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498 tmp = tdo->nextlink;
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499 tdo->nextlink = NULL;
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500 teedataobject_safe_decref(tmp);
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501 return 0;
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502 }
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503
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504 static void
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505 teedataobject_dealloc(teedataobject *tdo)
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506 {
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507 PyObject_GC_UnTrack(tdo);
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508 teedataobject_clear(tdo);
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509 PyObject_GC_Del(tdo);
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510 }
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511
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512 static PyObject *
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513 teedataobject_reduce(teedataobject *tdo)
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514 {
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515 int i;
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516 /* create a temporary list of already iterated values */
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517 PyObject *values = PyList_New(tdo->numread);
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518 if (!values)
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519 return NULL;
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Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
520 for (i=0 ; i<tdo->numread ; i++) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
521 Py_INCREF(tdo->values[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
522 PyList_SET_ITEM(values, i, tdo->values[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
523 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
524 return Py_BuildValue("O(ONO)", Py_TYPE(tdo), tdo->it,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
525 values,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
526 tdo->nextlink ? tdo->nextlink : Py_None);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
527 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
528
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
529 static PyTypeObject teedataobject_type;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
530
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
531 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
532 teedataobject_new(PyTypeObject *type, PyObject *args, PyObject *kw)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
533 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
534 teedataobject *tdo;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
535 PyObject *it, *values, *next;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
536 Py_ssize_t i, len;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
537
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
538 assert(type == &teedataobject_type);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
539 if (!PyArg_ParseTuple(args, "OO!O", &it, &PyList_Type, &values, &next))
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
540 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
541
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
542 tdo = (teedataobject *)teedataobject_newinternal(it);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
543 if (!tdo)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
544 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
545
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
546 len = PyList_GET_SIZE(values);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
547 if (len > LINKCELLS)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
548 goto err;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
549 for (i=0; i<len; i++) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
550 tdo->values[i] = PyList_GET_ITEM(values, i);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
551 Py_INCREF(tdo->values[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
552 }
76946
d274fa027cf5 Add safecase to silence Win64 warning.
Martin v. Löwis <martin@v.loewis.de>
parents: 76091
diff changeset
553 /* len <= LINKCELLS < INT_MAX */
d274fa027cf5 Add safecase to silence Win64 warning.
Martin v. Löwis <martin@v.loewis.de>
parents: 76091
diff changeset
554 tdo->numread = Py_SAFE_DOWNCAST(len, Py_ssize_t, int);
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
555
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
556 if (len == LINKCELLS) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
557 if (next != Py_None) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
558 if (Py_TYPE(next) != &teedataobject_type)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
559 goto err;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
560 assert(tdo->nextlink == NULL);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
561 Py_INCREF(next);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
562 tdo->nextlink = next;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
563 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
564 } else {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
565 if (next != Py_None)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
566 goto err; /* shouldn't have a next if we are not full */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
567 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
568 return (PyObject*)tdo;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
569
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
570 err:
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
571 Py_XDECREF(tdo);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
572 PyErr_SetString(PyExc_ValueError, "Invalid arguments");
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
573 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
574 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
575
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
576 static PyMethodDef teedataobject_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
577 {"__reduce__", (PyCFunction)teedataobject_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
578 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
579 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
580 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
581
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
582 PyDoc_STRVAR(teedataobject_doc, "Data container common to multiple tee objects.");
30764
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
583
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
584 static PyTypeObject teedataobject_type = {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
585 PyVarObject_HEAD_INIT(0, 0) /* Must fill in type value later */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
586 "itertools._tee_dataobject", /* tp_name */
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
587 sizeof(teedataobject), /* tp_basicsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
588 0, /* tp_itemsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
589 /* methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
590 (destructor)teedataobject_dealloc, /* tp_dealloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
591 0, /* tp_print */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
592 0, /* tp_getattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
593 0, /* tp_setattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
594 0, /* tp_reserved */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
595 0, /* tp_repr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
596 0, /* tp_as_number */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
597 0, /* tp_as_sequence */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
598 0, /* tp_as_mapping */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
599 0, /* tp_hash */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
600 0, /* tp_call */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
601 0, /* tp_str */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
602 PyObject_GenericGetAttr, /* tp_getattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
603 0, /* tp_setattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
604 0, /* tp_as_buffer */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
605 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
606 teedataobject_doc, /* tp_doc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
607 (traverseproc)teedataobject_traverse, /* tp_traverse */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
608 (inquiry)teedataobject_clear, /* tp_clear */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
609 0, /* tp_richcompare */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
610 0, /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
611 0, /* tp_iter */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
612 0, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
613 teedataobject_methods, /* tp_methods */
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
614 0, /* tp_members */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
615 0, /* tp_getset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
616 0, /* tp_base */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
617 0, /* tp_dict */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
618 0, /* tp_descr_get */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
619 0, /* tp_descr_set */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
620 0, /* tp_dictoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
621 0, /* tp_init */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
622 0, /* tp_alloc */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
623 teedataobject_new, /* tp_new */
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
624 PyObject_GC_Del, /* tp_free */
30764
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
625 };
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
626
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
627
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
628 static PyTypeObject tee_type;
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
629
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
630 static PyObject *
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
631 tee_next(teeobject *to)
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
632 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
633 PyObject *value, *link;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
634
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
635 if (to->index >= LINKCELLS) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
636 link = teedataobject_jumplink(to->dataobj);
81700
f7e14a1af609 Issue #13454: Fix a crash when deleting an iterator created by itertools.tee()
Serhiy Storchaka <storchaka@gmail.com>
parents: 78604
diff changeset
637 if (link == NULL)
f7e14a1af609 Issue #13454: Fix a crash when deleting an iterator created by itertools.tee()
Serhiy Storchaka <storchaka@gmail.com>
parents: 78604
diff changeset
638 return NULL;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
639 Py_DECREF(to->dataobj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
640 to->dataobj = (teedataobject *)link;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
641 to->index = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
642 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
643 value = teedataobject_getitem(to->dataobj, to->index);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
644 if (value == NULL)
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645 return NULL;
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646 to->index++;
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647 return value;
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diff changeset
648 }
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
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649
37879
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650 static int
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651 tee_traverse(teeobject *to, visitproc visit, void *arg)
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652 {
61466
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653 Py_VISIT((PyObject *)to->dataobj);
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diff changeset
654 return 0;
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Thomas Wouters <thomas@python.org>
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655 }
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656
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diff changeset
657 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee().
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diff changeset
658 tee_copy(teeobject *to)
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diff changeset
659 {
61466
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diff changeset
660 teeobject *newto;
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661
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662 newto = PyObject_GC_New(teeobject, &tee_type);
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diff changeset
663 if (newto == NULL)
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664 return NULL;
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665 Py_INCREF(to->dataobj);
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666 newto->dataobj = to->dataobj;
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diff changeset
667 newto->index = to->index;
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668 newto->weakreflist = NULL;
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669 PyObject_GC_Track(newto);
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670 return (PyObject *)newto;
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671 }
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
672
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
673 PyDoc_STRVAR(teecopy_doc, "Returns an independent iterator.");
3096fab2a19c Improve the implementation of itertools.tee().
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diff changeset
674
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parents: 30800
diff changeset
675 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee().
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diff changeset
676 tee_fromiterable(PyObject *iterable)
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parents: 30800
diff changeset
677 {
61466
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678 teeobject *to;
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679 PyObject *it = NULL;
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diff changeset
680
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681 it = PyObject_GetIter(iterable);
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682 if (it == NULL)
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diff changeset
683 return NULL;
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684 if (PyObject_TypeCheck(it, &tee_type)) {
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diff changeset
685 to = (teeobject *)tee_copy((teeobject *)it);
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diff changeset
686 goto done;
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diff changeset
687 }
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diff changeset
688
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diff changeset
689 to = PyObject_GC_New(teeobject, &tee_type);
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diff changeset
690 if (to == NULL)
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diff changeset
691 goto done;
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
692 to->dataobj = (teedataobject *)teedataobject_newinternal(it);
61466
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693 if (!to->dataobj) {
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diff changeset
694 PyObject_GC_Del(to);
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diff changeset
695 to = NULL;
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diff changeset
696 goto done;
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diff changeset
697 }
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diff changeset
698
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diff changeset
699 to->index = 0;
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700 to->weakreflist = NULL;
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701 PyObject_GC_Track(to);
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
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diff changeset
702 done:
61466
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703 Py_XDECREF(it);
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diff changeset
704 return (PyObject *)to;
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
705 }
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
706
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
707 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
708 tee_new(PyTypeObject *type, PyObject *args, PyObject *kw)
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
709 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
710 PyObject *iterable;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
711
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
712 if (!PyArg_UnpackTuple(args, "_tee", 1, 1, &iterable))
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
713 return NULL;
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diff changeset
714 return tee_fromiterable(iterable);
30764
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
715 }
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
716
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36684
diff changeset
717 static int
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36684
diff changeset
718 tee_clear(teeobject *to)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36684
diff changeset
719 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
720 if (to->weakreflist != NULL)
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
721 PyObject_ClearWeakRefs((PyObject *) to);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
722 Py_CLEAR(to->dataobj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
723 return 0;
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36684
diff changeset
724 }
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
Thomas Wouters <thomas@python.org>
parents: 36684
diff changeset
725
30764
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
726 static void
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
727 tee_dealloc(teeobject *to)
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
728 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
729 PyObject_GC_UnTrack(to);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
730 tee_clear(to);
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parents: 57525
diff changeset
731 PyObject_GC_Del(to);
30764
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
732 }
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
733
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
734 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
735 tee_reduce(teeobject *to)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
736 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
737 return Py_BuildValue("O(())(Oi)", Py_TYPE(to), to->dataobj, to->index);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
738 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
739
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
740 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
741 tee_setstate(teeobject *to, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
742 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
743 teedataobject *tdo;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
744 int index;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
745 if (!PyArg_ParseTuple(state, "O!i", &teedataobject_type, &tdo, &index))
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
746 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
747 if (index < 0 || index > LINKCELLS) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
748 PyErr_SetString(PyExc_ValueError, "Index out of range");
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
749 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
750 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
751 Py_CLEAR(to->dataobj);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
752 to->dataobj = tdo;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
753 Py_INCREF(to->dataobj);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
754 to->index = index;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
755 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
756 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
757
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
758 PyDoc_STRVAR(teeobject_doc,
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
759 "Iterator wrapped to make it copyable");
30764
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
760
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
761 static PyMethodDef tee_methods[] = {
61466
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parents: 57525
diff changeset
762 {"__copy__", (PyCFunction)tee_copy, METH_NOARGS, teecopy_doc},
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
763 {"__reduce__", (PyCFunction)tee_reduce, METH_NOARGS, reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
764 {"__setstate__", (PyCFunction)tee_setstate, METH_O, setstate_doc},
61466
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diff changeset
765 {NULL, NULL} /* sentinel */
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
766 };
30764
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
767
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
768 static PyTypeObject tee_type = {
61466
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parents: 57525
diff changeset
769 PyVarObject_HEAD_INIT(NULL, 0)
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
770 "itertools._tee", /* tp_name */
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
771 sizeof(teeobject), /* tp_basicsize */
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parents: 57525
diff changeset
772 0, /* tp_itemsize */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
773 /* methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
774 (destructor)tee_dealloc, /* tp_dealloc */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
775 0, /* tp_print */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
776 0, /* tp_getattr */
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diff changeset
777 0, /* tp_setattr */
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diff changeset
778 0, /* tp_reserved */
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diff changeset
779 0, /* tp_repr */
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diff changeset
780 0, /* tp_as_number */
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diff changeset
781 0, /* tp_as_sequence */
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diff changeset
782 0, /* tp_as_mapping */
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diff changeset
783 0, /* tp_hash */
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diff changeset
784 0, /* tp_call */
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diff changeset
785 0, /* tp_str */
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diff changeset
786 0, /* tp_getattro */
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diff changeset
787 0, /* tp_setattro */
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diff changeset
788 0, /* tp_as_buffer */
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diff changeset
789 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* tp_flags */
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diff changeset
790 teeobject_doc, /* tp_doc */
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791 (traverseproc)tee_traverse, /* tp_traverse */
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diff changeset
792 (inquiry)tee_clear, /* tp_clear */
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793 0, /* tp_richcompare */
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diff changeset
794 offsetof(teeobject, weakreflist), /* tp_weaklistoffset */
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diff changeset
795 PyObject_SelfIter, /* tp_iter */
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diff changeset
796 (iternextfunc)tee_next, /* tp_iternext */
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diff changeset
797 tee_methods, /* tp_methods */
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798 0, /* tp_members */
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799 0, /* tp_getset */
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800 0, /* tp_base */
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801 0, /* tp_dict */
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802 0, /* tp_descr_get */
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803 0, /* tp_descr_set */
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804 0, /* tp_dictoffset */
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805 0, /* tp_init */
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806 0, /* tp_alloc */
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diff changeset
807 tee_new, /* tp_new */
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808 PyObject_GC_Del, /* tp_free */
30764
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
parents: 30240
diff changeset
809 };
b948e775a79e Added itertools.tee()
Raymond Hettinger <python@rcn.com>
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diff changeset
810
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
811 static PyObject *
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
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812 tee(PyObject *self, PyObject *args)
3096fab2a19c Improve the implementation of itertools.tee().
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diff changeset
813 {
61466
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814 Py_ssize_t i, n=2;
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815 PyObject *it, *iterable, *copyable, *result;
72926
db4aa878cea2 Port SetAttrString/HasAttrString to SetAttrId/GetAttrId.
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parents: 72925
diff changeset
816 _Py_IDENTIFIER(__copy__);
61466
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817
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818 if (!PyArg_ParseTuple(args, "O|n", &iterable, &n))
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819 return NULL;
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820 if (n < 0) {
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821 PyErr_SetString(PyExc_ValueError, "n must be >= 0");
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822 return NULL;
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823 }
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824 result = PyTuple_New(n);
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825 if (result == NULL)
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826 return NULL;
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827 if (n == 0)
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828 return result;
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829 it = PyObject_GetIter(iterable);
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830 if (it == NULL) {
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831 Py_DECREF(result);
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832 return NULL;
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833 }
72926
db4aa878cea2 Port SetAttrString/HasAttrString to SetAttrId/GetAttrId.
Martin v. Löwis <martin@v.loewis.de>
parents: 72925
diff changeset
834 if (!_PyObject_HasAttrId(it, &PyId___copy__)) {
61466
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835 copyable = tee_fromiterable(it);
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836 Py_DECREF(it);
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837 if (copyable == NULL) {
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838 Py_DECREF(result);
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839 return NULL;
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840 }
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841 } else
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842 copyable = it;
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843 PyTuple_SET_ITEM(result, 0, copyable);
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844 for (i=1 ; i<n ; i++) {
72835
5e33219492bc Add API for static strings, primarily good for identifiers.
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parents: 72460
diff changeset
845
5e33219492bc Add API for static strings, primarily good for identifiers.
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diff changeset
846 copyable = _PyObject_CallMethodId(copyable, &PyId___copy__, NULL);
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847 if (copyable == NULL) {
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848 Py_DECREF(result);
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849 return NULL;
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850 }
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851 PyTuple_SET_ITEM(result, i, copyable);
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852 }
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853 return result;
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854 }
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855
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856 PyDoc_STRVAR(tee_doc,
3096fab2a19c Improve the implementation of itertools.tee().
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857 "tee(iterable, n=2) --> tuple of n independent iterators.");
3096fab2a19c Improve the implementation of itertools.tee().
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858
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859
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860 /* cycle object **********************************************************/
61fa6b55c1de User requested changes to the itertools module.
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861
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862 typedef struct {
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863 PyObject_HEAD
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864 PyObject *it;
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865 PyObject *saved;
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866 int firstpass;
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867 } cycleobject;
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868
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869 static PyTypeObject cycle_type;
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870
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871 static PyObject *
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diff changeset
872 cycle_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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parents: 27770
diff changeset
873 {
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874 PyObject *it;
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875 PyObject *iterable;
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876 PyObject *saved;
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877 cycleobject *lz;
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878
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879 if (type == &cycle_type && !_PyArg_NoKeywords("cycle()", kwds))
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880 return NULL;
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881
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882 if (!PyArg_UnpackTuple(args, "cycle", 1, 1, &iterable))
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883 return NULL;
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884
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diff changeset
885 /* Get iterator. */
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886 it = PyObject_GetIter(iterable);
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887 if (it == NULL)
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888 return NULL;
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diff changeset
889
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890 saved = PyList_New(0);
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891 if (saved == NULL) {
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892 Py_DECREF(it);
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893 return NULL;
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894 }
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895
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896 /* create cycleobject structure */
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897 lz = (cycleobject *)type->tp_alloc(type, 0);
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898 if (lz == NULL) {
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899 Py_DECREF(it);
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900 Py_DECREF(saved);
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901 return NULL;
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902 }
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903 lz->it = it;
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904 lz->saved = saved;
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905 lz->firstpass = 0;
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906
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907 return (PyObject *)lz;
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908 }
61fa6b55c1de User requested changes to the itertools module.
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909
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910 static void
61fa6b55c1de User requested changes to the itertools module.
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911 cycle_dealloc(cycleobject *lz)
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912 {
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913 PyObject_GC_UnTrack(lz);
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914 Py_XDECREF(lz->saved);
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915 Py_XDECREF(lz->it);
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diff changeset
916 Py_TYPE(lz)->tp_free(lz);
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917 }
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918
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919 static int
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920 cycle_traverse(cycleobject *lz, visitproc visit, void *arg)
61fa6b55c1de User requested changes to the itertools module.
Raymond Hettinger <python@rcn.com>
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921 {
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922 Py_VISIT(lz->it);
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923 Py_VISIT(lz->saved);
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924 return 0;
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925 }
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926
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diff changeset
927 static PyObject *
61fa6b55c1de User requested changes to the itertools module.
Raymond Hettinger <python@rcn.com>
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diff changeset
928 cycle_next(cycleobject *lz)
61fa6b55c1de User requested changes to the itertools module.
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diff changeset
929 {
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930 PyObject *item;
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931 PyObject *it;
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932 PyObject *tmp;
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933
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934 while (1) {
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935 item = PyIter_Next(lz->it);
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936 if (item != NULL) {
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937 if (!lz->firstpass && PyList_Append(lz->saved, item)) {
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938 Py_DECREF(item);
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939 return NULL;
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940 }
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941 return item;
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942 }
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943 if (PyErr_Occurred()) {
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944 if (PyErr_ExceptionMatches(PyExc_StopIteration))
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945 PyErr_Clear();
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946 else
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947 return NULL;
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948 }
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949 if (PyList_Size(lz->saved) == 0)
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950 return NULL;
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951 it = PyObject_GetIter(lz->saved);
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952 if (it == NULL)
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953 return NULL;
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954 tmp = lz->it;
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955 lz->it = it;
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956 lz->firstpass = 1;
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957 Py_DECREF(tmp);
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958 }
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959 }
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960
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961 static PyObject *
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962 cycle_reduce(cycleobject *lz)
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963 {
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964 /* Create a new cycle with the iterator tuple, then set
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965 * the saved state on it.
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966 */
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967 return Py_BuildValue("O(O)(Oi)", Py_TYPE(lz),
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968 lz->it, lz->saved, lz->firstpass);
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969 }
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970
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971 static PyObject *
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972 cycle_setstate(cycleobject *lz, PyObject *state)
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973 {
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974 PyObject *saved=NULL;
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975 int firstpass;
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976 if (!PyArg_ParseTuple(state, "Oi", &saved, &firstpass))
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977 return NULL;
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978 Py_CLEAR(lz->saved);
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979 lz->saved = saved;
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980 Py_XINCREF(lz->saved);
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981 lz->firstpass = firstpass != 0;
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982 Py_RETURN_NONE;
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983 }
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984
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985 static PyMethodDef cycle_methods[] = {
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986 {"__reduce__", (PyCFunction)cycle_reduce, METH_NOARGS,
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987 reduce_doc},
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988 {"__setstate__", (PyCFunction)cycle_setstate, METH_O,
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989 setstate_doc},
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990 {NULL, NULL} /* sentinel */
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991 };
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992
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993 PyDoc_STRVAR(cycle_doc,
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994 "cycle(iterable) --> cycle object\n\
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995 \n\
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996 Return elements from the iterable until it is exhausted.\n\
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997 Then repeat the sequence indefinitely.");
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998
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999 static PyTypeObject cycle_type = {
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1000 PyVarObject_HEAD_INIT(NULL, 0)
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1001 "itertools.cycle", /* tp_name */
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1002 sizeof(cycleobject), /* tp_basicsize */
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1003 0, /* tp_itemsize */
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1004 /* methods */
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1005 (destructor)cycle_dealloc, /* tp_dealloc */
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1006 0, /* tp_print */
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1007 0, /* tp_getattr */
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1008 0, /* tp_setattr */
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1009 0, /* tp_reserved */
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1010 0, /* tp_repr */
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1011 0, /* tp_as_number */
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1012 0, /* tp_as_sequence */
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1013 0, /* tp_as_mapping */
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1014 0, /* tp_hash */
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1015 0, /* tp_call */
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1016 0, /* tp_str */
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1017 PyObject_GenericGetAttr, /* tp_getattro */
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1018 0, /* tp_setattro */
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1019 0, /* tp_as_buffer */
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1020 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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1021 Py_TPFLAGS_BASETYPE, /* tp_flags */
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1022 cycle_doc, /* tp_doc */
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1023 (traverseproc)cycle_traverse, /* tp_traverse */
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1024 0, /* tp_clear */
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1025 0, /* tp_richcompare */
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1026 0, /* tp_weaklistoffset */
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1027 PyObject_SelfIter, /* tp_iter */
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1028 (iternextfunc)cycle_next, /* tp_iternext */
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1029 cycle_methods, /* tp_methods */
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1030 0, /* tp_members */
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1031 0, /* tp_getset */
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1032 0, /* tp_base */
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1033 0, /* tp_dict */
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1034 0, /* tp_descr_get */
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1035 0, /* tp_descr_set */
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1036 0, /* tp_dictoffset */
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1037 0, /* tp_init */
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1038 0, /* tp_alloc */
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1039 cycle_new, /* tp_new */
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diff changeset
1040 PyObject_GC_Del, /* tp_free */
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diff changeset
1041 };
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1042
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diff changeset
1043
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1044 /* dropwhile object **********************************************************/
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1045
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1046 typedef struct {
61466
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1047 PyObject_HEAD
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1048 PyObject *func;
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1049 PyObject *it;
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1050 long start;
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1051 } dropwhileobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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1052
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
parents: 29535
diff changeset
1053 static PyTypeObject dropwhile_type;
27570
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1054
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1055 static PyObject *
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diff changeset
1056 dropwhile_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1057 {
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1058 PyObject *func, *seq;
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1059 PyObject *it;
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1060 dropwhileobject *lz;
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1061
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1062 if (type == &dropwhile_type && !_PyArg_NoKeywords("dropwhile()", kwds))
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1063 return NULL;
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1064
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1065 if (!PyArg_UnpackTuple(args, "dropwhile", 2, 2, &func, &seq))
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1066 return NULL;
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1067
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1068 /* Get iterator. */
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1069 it = PyObject_GetIter(seq);
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1070 if (it == NULL)
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1071 return NULL;
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1072
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1073 /* create dropwhileobject structure */
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1074 lz = (dropwhileobject *)type->tp_alloc(type, 0);
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1075 if (lz == NULL) {
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1076 Py_DECREF(it);
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1077 return NULL;
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1078 }
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1079 Py_INCREF(func);
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1080 lz->func = func;
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1081 lz->it = it;
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1082 lz->start = 0;
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1083
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1084 return (PyObject *)lz;
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1085 }
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1086
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1087 static void
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1088 dropwhile_dealloc(dropwhileobject *lz)
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1089 {
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1090 PyObject_GC_UnTrack(lz);
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1091 Py_XDECREF(lz->func);
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1092 Py_XDECREF(lz->it);
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1093 Py_TYPE(lz)->tp_free(lz);
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1094 }
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1095
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1096 static int
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1097 dropwhile_traverse(dropwhileobject *lz, visitproc visit, void *arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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1098 {
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1099 Py_VISIT(lz->it);
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1100 Py_VISIT(lz->func);
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1101 return 0;
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1102 }
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1103
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1104 static PyObject *
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1105 dropwhile_next(dropwhileobject *lz)
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1106 {
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1107 PyObject *item, *good;
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1108 PyObject *it = lz->it;
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1109 long ok;
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1110 PyObject *(*iternext)(PyObject *);
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1111
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1112 iternext = *Py_TYPE(it)->tp_iternext;
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1113 for (;;) {
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1114 item = iternext(it);
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1115 if (item == NULL)
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1116 return NULL;
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1117 if (lz->start == 1)
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1118 return item;
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1119
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1120 good = PyObject_CallFunctionObjArgs(lz->func, item, NULL);
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1121 if (good == NULL) {
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1122 Py_DECREF(item);
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1123 return NULL;
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1124 }
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1125 ok = PyObject_IsTrue(good);
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1126 Py_DECREF(good);
78604
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diff changeset
1127 if (ok == 0) {
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1128 lz->start = 1;
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1129 return item;
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1130 }
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1131 Py_DECREF(item);
78604
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1132 if (ok < 0)
56dc7b09f390 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
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1133 return NULL;
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1134 }
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1135 }
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1136
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1137 static PyObject *
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1138 dropwhile_reduce(dropwhileobject *lz)
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1139 {
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diff changeset
1140 return Py_BuildValue("O(OO)l", Py_TYPE(lz),
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1141 lz->func, lz->it, lz->start);
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1142 }
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1143
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1144 static PyObject *
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1145 dropwhile_setstate(dropwhileobject *lz, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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1146 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1147 int start = PyObject_IsTrue(state);
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1148 if (start < 0)
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1149 return NULL;
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1150 lz->start = start;
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1151 Py_RETURN_NONE;
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1152 }
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1153
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1154 static PyMethodDef dropwhile_methods[] = {
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diff changeset
1155 {"__reduce__", (PyCFunction)dropwhile_reduce, METH_NOARGS,
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diff changeset
1156 reduce_doc},
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diff changeset
1157 {"__setstate__", (PyCFunction)dropwhile_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1158 setstate_doc},
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diff changeset
1159 {NULL, NULL} /* sentinel */
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diff changeset
1160 };
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1161
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1162 PyDoc_STRVAR(dropwhile_doc,
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1163 "dropwhile(predicate, iterable) --> dropwhile object\n\
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1164 \n\
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1165 Drop items from the iterable while predicate(item) is true.\n\
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1166 Afterwards, return every element until the iterable is exhausted.");
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1167
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1168 static PyTypeObject dropwhile_type = {
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1169 PyVarObject_HEAD_INIT(NULL, 0)
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1170 "itertools.dropwhile", /* tp_name */
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1171 sizeof(dropwhileobject), /* tp_basicsize */
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1172 0, /* tp_itemsize */
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1173 /* methods */
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1174 (destructor)dropwhile_dealloc, /* tp_dealloc */
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diff changeset
1175 0, /* tp_print */
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diff changeset
1176 0, /* tp_getattr */
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diff changeset
1177 0, /* tp_setattr */
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diff changeset
1178 0, /* tp_reserved */
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diff changeset
1179 0, /* tp_repr */
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diff changeset
1180 0, /* tp_as_number */
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diff changeset
1181 0, /* tp_as_sequence */
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diff changeset
1182 0, /* tp_as_mapping */
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diff changeset
1183 0, /* tp_hash */
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diff changeset
1184 0, /* tp_call */
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diff changeset
1185 0, /* tp_str */
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diff changeset
1186 PyObject_GenericGetAttr, /* tp_getattro */
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diff changeset
1187 0, /* tp_setattro */
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diff changeset
1188 0, /* tp_as_buffer */
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diff changeset
1189 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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diff changeset
1190 Py_TPFLAGS_BASETYPE, /* tp_flags */
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diff changeset
1191 dropwhile_doc, /* tp_doc */
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diff changeset
1192 (traverseproc)dropwhile_traverse, /* tp_traverse */
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diff changeset
1193 0, /* tp_clear */
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diff changeset
1194 0, /* tp_richcompare */
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diff changeset
1195 0, /* tp_weaklistoffset */
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diff changeset
1196 PyObject_SelfIter, /* tp_iter */
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parents: 57525
diff changeset
1197 (iternextfunc)dropwhile_next, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1198 dropwhile_methods, /* tp_methods */
61466
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diff changeset
1199 0, /* tp_members */
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diff changeset
1200 0, /* tp_getset */
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diff changeset
1201 0, /* tp_base */
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diff changeset
1202 0, /* tp_dict */
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diff changeset
1203 0, /* tp_descr_get */
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diff changeset
1204 0, /* tp_descr_set */
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diff changeset
1205 0, /* tp_dictoffset */
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diff changeset
1206 0, /* tp_init */
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diff changeset
1207 0, /* tp_alloc */
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parents: 57525
diff changeset
1208 dropwhile_new, /* tp_new */
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diff changeset
1209 PyObject_GC_Del, /* tp_free */
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1210 };
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1211
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1212
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1213 /* takewhile object **********************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1214
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1215 typedef struct {
61466
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diff changeset
1216 PyObject_HEAD
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diff changeset
1217 PyObject *func;
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diff changeset
1218 PyObject *it;
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diff changeset
1219 long stop;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1220 } takewhileobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1221
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
parents: 29535
diff changeset
1222 static PyTypeObject takewhile_type;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1223
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1224 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1225 takewhile_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1226 {
61466
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diff changeset
1227 PyObject *func, *seq;
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diff changeset
1228 PyObject *it;
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diff changeset
1229 takewhileobject *lz;
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diff changeset
1230
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diff changeset
1231 if (type == &takewhile_type && !_PyArg_NoKeywords("takewhile()", kwds))
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diff changeset
1232 return NULL;
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diff changeset
1233
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diff changeset
1234 if (!PyArg_UnpackTuple(args, "takewhile", 2, 2, &func, &seq))
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diff changeset
1235 return NULL;
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diff changeset
1236
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diff changeset
1237 /* Get iterator. */
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diff changeset
1238 it = PyObject_GetIter(seq);
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diff changeset
1239 if (it == NULL)
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diff changeset
1240 return NULL;
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diff changeset
1241
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diff changeset
1242 /* create takewhileobject structure */
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diff changeset
1243 lz = (takewhileobject *)type->tp_alloc(type, 0);
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diff changeset
1244 if (lz == NULL) {
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diff changeset
1245 Py_DECREF(it);
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diff changeset
1246 return NULL;
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diff changeset
1247 }
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diff changeset
1248 Py_INCREF(func);
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diff changeset
1249 lz->func = func;
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diff changeset
1250 lz->it = it;
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diff changeset
1251 lz->stop = 0;
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diff changeset
1252
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diff changeset
1253 return (PyObject *)lz;
27570
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Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1254 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1255
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1256 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1257 takewhile_dealloc(takewhileobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1258 {
61466
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diff changeset
1259 PyObject_GC_UnTrack(lz);
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diff changeset
1260 Py_XDECREF(lz->func);
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diff changeset
1261 Py_XDECREF(lz->it);
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diff changeset
1262 Py_TYPE(lz)->tp_free(lz);
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ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1263 }
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parents:
diff changeset
1264
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1265 static int
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1266 takewhile_traverse(takewhileobject *lz, visitproc visit, void *arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1267 {
61466
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diff changeset
1268 Py_VISIT(lz->it);
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diff changeset
1269 Py_VISIT(lz->func);
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diff changeset
1270 return 0;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1271 }
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diff changeset
1272
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1273 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1274 takewhile_next(takewhileobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1275 {
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diff changeset
1276 PyObject *item, *good;
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parents: 57525
diff changeset
1277 PyObject *it = lz->it;
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diff changeset
1278 long ok;
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diff changeset
1279
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diff changeset
1280 if (lz->stop == 1)
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diff changeset
1281 return NULL;
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diff changeset
1282
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diff changeset
1283 item = (*Py_TYPE(it)->tp_iternext)(it);
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diff changeset
1284 if (item == NULL)
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diff changeset
1285 return NULL;
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diff changeset
1286
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diff changeset
1287 good = PyObject_CallFunctionObjArgs(lz->func, item, NULL);
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diff changeset
1288 if (good == NULL) {
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diff changeset
1289 Py_DECREF(item);
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diff changeset
1290 return NULL;
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diff changeset
1291 }
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diff changeset
1292 ok = PyObject_IsTrue(good);
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diff changeset
1293 Py_DECREF(good);
78605
b878df1d23b1 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Antoine Pitrou <solipsis@pitrou.net>
parents: 76946 78604
diff changeset
1294 if (ok == 1)
61466
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diff changeset
1295 return item;
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diff changeset
1296 Py_DECREF(item);
78604
56dc7b09f390 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72459
diff changeset
1297 if (ok == 0)
56dc7b09f390 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72459
diff changeset
1298 lz->stop = 1;
61466
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diff changeset
1299 return NULL;
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parents:
diff changeset
1300 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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parents:
diff changeset
1301
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1302 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1303 takewhile_reduce(takewhileobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1304 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1305 return Py_BuildValue("O(OO)l", Py_TYPE(lz),
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1306 lz->func, lz->it, lz->stop);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1307 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1308
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1309 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1310 takewhile_reduce_setstate(takewhileobject *lz, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1311 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1312 int stop = PyObject_IsTrue(state);
78605
b878df1d23b1 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1313 if (stop < 0)
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1314 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1315 lz->stop = stop;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1316 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1317 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1318
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1319 static PyMethodDef takewhile_reduce_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1320 {"__reduce__", (PyCFunction)takewhile_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1321 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1322 {"__setstate__", (PyCFunction)takewhile_reduce_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1323 setstate_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1324 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1325 };
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1326 PyDoc_STRVAR(takewhile_doc,
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diff changeset
1327 "takewhile(predicate, iterable) --> takewhile object\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1328 \n\
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1329 Return successive entries from an iterable as long as the \n\
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1330 predicate evaluates to true for each entry.");
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1331
29850
45dc33433323 SF patch #770521: make itertools type declarations static
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1332 static PyTypeObject takewhile_type = {
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1333 PyVarObject_HEAD_INIT(NULL, 0)
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1334 "itertools.takewhile", /* tp_name */
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diff changeset
1335 sizeof(takewhileobject), /* tp_basicsize */
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1336 0, /* tp_itemsize */
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1337 /* methods */
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1338 (destructor)takewhile_dealloc, /* tp_dealloc */
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1339 0, /* tp_print */
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1340 0, /* tp_getattr */
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1341 0, /* tp_setattr */
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1342 0, /* tp_reserved */
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1343 0, /* tp_repr */
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1344 0, /* tp_as_number */
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1345 0, /* tp_as_sequence */
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1346 0, /* tp_as_mapping */
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1347 0, /* tp_hash */
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1348 0, /* tp_call */
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1349 0, /* tp_str */
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1350 PyObject_GenericGetAttr, /* tp_getattro */
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1351 0, /* tp_setattro */
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1352 0, /* tp_as_buffer */
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1353 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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1354 Py_TPFLAGS_BASETYPE, /* tp_flags */
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diff changeset
1355 takewhile_doc, /* tp_doc */
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diff changeset
1356 (traverseproc)takewhile_traverse, /* tp_traverse */
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1357 0, /* tp_clear */
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1358 0, /* tp_richcompare */
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1359 0, /* tp_weaklistoffset */
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diff changeset
1360 PyObject_SelfIter, /* tp_iter */
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diff changeset
1361 (iternextfunc)takewhile_next, /* tp_iternext */
76091
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diff changeset
1362 takewhile_reduce_methods, /* tp_methods */
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1363 0, /* tp_members */
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1364 0, /* tp_getset */
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1365 0, /* tp_base */
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diff changeset
1366 0, /* tp_dict */
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1367 0, /* tp_descr_get */
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1368 0, /* tp_descr_set */
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1369 0, /* tp_dictoffset */
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1370 0, /* tp_init */
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1371 0, /* tp_alloc */
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1372 takewhile_new, /* tp_new */
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diff changeset
1373 PyObject_GC_Del, /* tp_free */
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diff changeset
1374 };
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1375
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1376
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1377 /* islice object ************************************************************/
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diff changeset
1378
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1379 typedef struct {
61466
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1380 PyObject_HEAD
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diff changeset
1381 PyObject *it;
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1382 Py_ssize_t next;
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1383 Py_ssize_t stop;
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diff changeset
1384 Py_ssize_t step;
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diff changeset
1385 Py_ssize_t cnt;
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diff changeset
1386 } isliceobject;
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diff changeset
1387
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
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diff changeset
1388 static PyTypeObject islice_type;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1389
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diff changeset
1390 static PyObject *
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diff changeset
1391 islice_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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diff changeset
1392 {
61466
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1393 PyObject *seq;
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1394 Py_ssize_t start=0, stop=-1, step=1;
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diff changeset
1395 PyObject *it, *a1=NULL, *a2=NULL, *a3=NULL;
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diff changeset
1396 Py_ssize_t numargs;
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1397 isliceobject *lz;
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diff changeset
1398
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1399 if (type == &islice_type && !_PyArg_NoKeywords("islice()", kwds))
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1400 return NULL;
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1401
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1402 if (!PyArg_UnpackTuple(args, "islice", 2, 4, &seq, &a1, &a2, &a3))
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1403 return NULL;
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1404
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1405 numargs = PyTuple_Size(args);
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1406 if (numargs == 2) {
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1407 if (a1 != Py_None) {
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1408 stop = PyLong_AsSsize_t(a1);
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1409 if (stop == -1) {
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1410 if (PyErr_Occurred())
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1411 PyErr_Clear();
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1412 PyErr_SetString(PyExc_ValueError,
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1413 "Stop argument for islice() must be None or an integer: 0 <= x <= sys.maxsize.");
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1414 return NULL;
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1415 }
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1416 }
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1417 } else {
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1418 if (a1 != Py_None)
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1419 start = PyLong_AsSsize_t(a1);
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1420 if (start == -1 && PyErr_Occurred())
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1421 PyErr_Clear();
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1422 if (a2 != Py_None) {
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1423 stop = PyLong_AsSsize_t(a2);
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1424 if (stop == -1) {
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1425 if (PyErr_Occurred())
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1426 PyErr_Clear();
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1427 PyErr_SetString(PyExc_ValueError,
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1428 "Stop argument for islice() must be None or an integer: 0 <= x <= sys.maxsize.");
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1429 return NULL;
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1430 }
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1431 }
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1432 }
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1433 if (start<0 || stop<-1) {
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1434 PyErr_SetString(PyExc_ValueError,
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diff changeset
1435 "Indices for islice() must be None or an integer: 0 <= x <= sys.maxsize.");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1436 return NULL;
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parents: 57525
diff changeset
1437 }
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diff changeset
1438
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1439 if (a3 != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1440 if (a3 != Py_None)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1441 step = PyLong_AsSsize_t(a3);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1442 if (step == -1 && PyErr_Occurred())
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1443 PyErr_Clear();
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parents: 57525
diff changeset
1444 }
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diff changeset
1445 if (step<1) {
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diff changeset
1446 PyErr_SetString(PyExc_ValueError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1447 "Step for islice() must be a positive integer or None.");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1448 return NULL;
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parents: 57525
diff changeset
1449 }
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parents: 57525
diff changeset
1450
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parents: 57525
diff changeset
1451 /* Get iterator. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1452 it = PyObject_GetIter(seq);
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parents: 57525
diff changeset
1453 if (it == NULL)
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parents: 57525
diff changeset
1454 return NULL;
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diff changeset
1455
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parents: 57525
diff changeset
1456 /* create isliceobject structure */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1457 lz = (isliceobject *)type->tp_alloc(type, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1458 if (lz == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1459 Py_DECREF(it);
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parents: 57525
diff changeset
1460 return NULL;
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parents: 57525
diff changeset
1461 }
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parents: 57525
diff changeset
1462 lz->it = it;
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parents: 57525
diff changeset
1463 lz->next = start;
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parents: 57525
diff changeset
1464 lz->stop = stop;
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parents: 57525
diff changeset
1465 lz->step = step;
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parents: 57525
diff changeset
1466 lz->cnt = 0L;
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parents: 57525
diff changeset
1467
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parents: 57525
diff changeset
1468 return (PyObject *)lz;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1469 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1470
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1471 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1472 islice_dealloc(isliceobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1473 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1474 PyObject_GC_UnTrack(lz);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1475 Py_XDECREF(lz->it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1476 Py_TYPE(lz)->tp_free(lz);
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1477 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1478
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1479 static int
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1480 islice_traverse(isliceobject *lz, visitproc visit, void *arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1481 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1482 Py_VISIT(lz->it);
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parents: 57525
diff changeset
1483 return 0;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1484 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1485
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1486 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1487 islice_next(isliceobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1488 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1489 PyObject *item;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
1490 PyObject *it = lz->it;
66546
6799d54db378 Issue #10323: Predictable final state for slice().
Raymond Hettinger <python@rcn.com>
parents: 62239
diff changeset
1491 Py_ssize_t stop = lz->stop;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1492 Py_ssize_t oldnext;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1493 PyObject *(*iternext)(PyObject *);
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parents: 57525
diff changeset
1494
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parents: 57525
diff changeset
1495 iternext = *Py_TYPE(it)->tp_iternext;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1496 while (lz->cnt < lz->next) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1497 item = iternext(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1498 if (item == NULL)
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parents: 57525
diff changeset
1499 return NULL;
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parents: 57525
diff changeset
1500 Py_DECREF(item);
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parents: 57525
diff changeset
1501 lz->cnt++;
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parents: 57525
diff changeset
1502 }
66546
6799d54db378 Issue #10323: Predictable final state for slice().
Raymond Hettinger <python@rcn.com>
parents: 62239
diff changeset
1503 if (stop != -1 && lz->cnt >= stop)
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1504 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1505 item = iternext(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1506 if (item == NULL)
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parents: 57525
diff changeset
1507 return NULL;
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parents: 57525
diff changeset
1508 lz->cnt++;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
1509 oldnext = lz->next;
72459
b378864d8ff3 Issue #12973: Fix itertools bug caused by signed integer overflow. Thanks Stefan Krah.
Mark Dickinson <mdickinson@enthought.com>
parents: 69063
diff changeset
1510 /* The (size_t) cast below avoids the danger of undefined
b378864d8ff3 Issue #12973: Fix itertools bug caused by signed integer overflow. Thanks Stefan Krah.
Mark Dickinson <mdickinson@enthought.com>
parents: 69063
diff changeset
1511 behaviour from signed integer overflow. */
b378864d8ff3 Issue #12973: Fix itertools bug caused by signed integer overflow. Thanks Stefan Krah.
Mark Dickinson <mdickinson@enthought.com>
parents: 69063
diff changeset
1512 lz->next += (size_t)lz->step;
66546
6799d54db378 Issue #10323: Predictable final state for slice().
Raymond Hettinger <python@rcn.com>
parents: 62239
diff changeset
1513 if (lz->next < oldnext || (stop != -1 && lz->next > stop))
6799d54db378 Issue #10323: Predictable final state for slice().
Raymond Hettinger <python@rcn.com>
parents: 62239
diff changeset
1514 lz->next = stop;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
1515 return item;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1516 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1517
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1518 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1519 islice_reduce(isliceobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1520 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1521 /* When unpickled, generate a new object with the same bounds,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1522 * then 'setstate' with the next and count
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1523 */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1524 PyObject *stop;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1525 if (lz->stop == -1) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1526 stop = Py_None;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1527 Py_INCREF(stop);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1528 } else {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1529 stop = PyLong_FromSsize_t(lz->stop);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1530 if (stop == NULL)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1531 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1532 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1533 return Py_BuildValue("O(OnNn)n", Py_TYPE(lz),
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1534 lz->it, lz->next, stop, lz->step,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1535 lz->cnt);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1536 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1537
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1538 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1539 islice_setstate(isliceobject *lz, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1540 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1541 Py_ssize_t cnt = PyLong_AsSsize_t(state);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1542 if (cnt == -1 && PyErr_Occurred())
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1543 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1544 lz->cnt = cnt;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1545 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1546 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1547
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1548 static PyMethodDef islice_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1549 {"__reduce__", (PyCFunction)islice_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1550 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1551 {"__setstate__", (PyCFunction)islice_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1552 setstate_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1553 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1554 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1555
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1556 PyDoc_STRVAR(islice_doc,
84263
7ecca1a98220 Closes #18220: expand itertools.islice docstring to 2 lines
Andrew Kuchling <amk@amk.ca>
parents: 84262
diff changeset
1557 "islice(iterable, stop) --> islice object\n\
7ecca1a98220 Closes #18220: expand itertools.islice docstring to 2 lines
Andrew Kuchling <amk@amk.ca>
parents: 84262
diff changeset
1558 islice(iterable, start, stop[, step]) --> islice object\n\
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1559 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1560 Return an iterator whose next() method returns selected values from an\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1561 iterable. If start is specified, will skip all preceding elements;\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1562 otherwise, start defaults to zero. Step defaults to one. If\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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parents:
diff changeset
1563 specified as another value, step determines how many values are \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1564 skipped between successive calls. Works like a slice() on a list\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1565 but returns an iterator.");
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1566
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
parents: 29535
diff changeset
1567 static PyTypeObject islice_type = {
61466
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diff changeset
1568 PyVarObject_HEAD_INIT(NULL, 0)
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diff changeset
1569 "itertools.islice", /* tp_name */
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diff changeset
1570 sizeof(isliceobject), /* tp_basicsize */
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diff changeset
1571 0, /* tp_itemsize */
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diff changeset
1572 /* methods */
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diff changeset
1573 (destructor)islice_dealloc, /* tp_dealloc */
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diff changeset
1574 0, /* tp_print */
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diff changeset
1575 0, /* tp_getattr */
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diff changeset
1576 0, /* tp_setattr */
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diff changeset
1577 0, /* tp_reserved */
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diff changeset
1578 0, /* tp_repr */
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diff changeset
1579 0, /* tp_as_number */
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diff changeset
1580 0, /* tp_as_sequence */
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diff changeset
1581 0, /* tp_as_mapping */
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diff changeset
1582 0, /* tp_hash */
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1583 0, /* tp_call */
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diff changeset
1584 0, /* tp_str */
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diff changeset
1585 PyObject_GenericGetAttr, /* tp_getattro */
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1586 0, /* tp_setattro */
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1587 0, /* tp_as_buffer */
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1588 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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diff changeset
1589 Py_TPFLAGS_BASETYPE, /* tp_flags */
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diff changeset
1590 islice_doc, /* tp_doc */
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diff changeset
1591 (traverseproc)islice_traverse, /* tp_traverse */
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1592 0, /* tp_clear */
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1593 0, /* tp_richcompare */
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1594 0, /* tp_weaklistoffset */
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diff changeset
1595 PyObject_SelfIter, /* tp_iter */
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diff changeset
1596 (iternextfunc)islice_next, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1597 islice_methods, /* tp_methods */
61466
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1598 0, /* tp_members */
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1599 0, /* tp_getset */
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1600 0, /* tp_base */
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1601 0, /* tp_dict */
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1602 0, /* tp_descr_get */
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1603 0, /* tp_descr_set */
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1604 0, /* tp_dictoffset */
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1605 0, /* tp_init */
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1606 0, /* tp_alloc */
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diff changeset
1607 islice_new, /* tp_new */
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diff changeset
1608 PyObject_GC_Del, /* tp_free */
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parents:
diff changeset
1609 };
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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parents:
diff changeset
1610
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1611
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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1612 /* starmap object ************************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1613
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1614 typedef struct {
61466
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1615 PyObject_HEAD
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1616 PyObject *func;
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1617 PyObject *it;
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ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1618 } starmapobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1619
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
parents: 29535
diff changeset
1620 static PyTypeObject starmap_type;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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parents:
diff changeset
1621
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1622 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1623 starmap_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1624 {
61466
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1625 PyObject *func, *seq;
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1626 PyObject *it;
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diff changeset
1627 starmapobject *lz;
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diff changeset
1628
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diff changeset
1629 if (type == &starmap_type && !_PyArg_NoKeywords("starmap()", kwds))
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1630 return NULL;
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diff changeset
1631
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1632 if (!PyArg_UnpackTuple(args, "starmap", 2, 2, &func, &seq))
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1633 return NULL;
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diff changeset
1634
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diff changeset
1635 /* Get iterator. */
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diff changeset
1636 it = PyObject_GetIter(seq);
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diff changeset
1637 if (it == NULL)
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1638 return NULL;
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diff changeset
1639
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diff changeset
1640 /* create starmapobject structure */
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diff changeset
1641 lz = (starmapobject *)type->tp_alloc(type, 0);
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1642 if (lz == NULL) {
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1643 Py_DECREF(it);
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diff changeset
1644 return NULL;
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1645 }
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1646 Py_INCREF(func);
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diff changeset
1647 lz->func = func;
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diff changeset
1648 lz->it = it;
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diff changeset
1649
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1650 return (PyObject *)lz;
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ba57c3daf6e9 Move itertools module from the sandbox and into production.
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1651 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1652
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1653 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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1654 starmap_dealloc(starmapobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1655 {
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1656 PyObject_GC_UnTrack(lz);
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diff changeset
1657 Py_XDECREF(lz->func);
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diff changeset
1658 Py_XDECREF(lz->it);
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diff changeset
1659 Py_TYPE(lz)->tp_free(lz);
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diff changeset
1660 }
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1661
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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1662 static int
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1663 starmap_traverse(starmapobject *lz, visitproc visit, void *arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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1664 {
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1665 Py_VISIT(lz->it);
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1666 Py_VISIT(lz->func);
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1667 return 0;
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1668 }
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1669
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1670 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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1671 starmap_next(starmapobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
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diff changeset
1672 {
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1673 PyObject *args;
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1674 PyObject *result;
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1675 PyObject *it = lz->it;
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1676
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1677 args = (*Py_TYPE(it)->tp_iternext)(it);
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1678 if (args == NULL)
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1679 return NULL;
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1680 if (!PyTuple_CheckExact(args)) {
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1681 PyObject *newargs = PySequence_Tuple(args);
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1682 Py_DECREF(args);
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1683 if (newargs == NULL)
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1684 return NULL;
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1685 args = newargs;
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1686 }
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1687 result = PyObject_Call(lz->func, args, NULL);
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1688 Py_DECREF(args);
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1689 return result;
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1690 }
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1691
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1692 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1693 starmap_reduce(starmapobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1694 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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1695 /* Just pickle the iterator */
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diff changeset
1696 return Py_BuildValue("O(OO)", Py_TYPE(lz), lz->func, lz->it);
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1697 }
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1698
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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1699 static PyMethodDef starmap_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1700 {"__reduce__", (PyCFunction)starmap_reduce, METH_NOARGS,
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Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
1701 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1702 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
1703 };
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1704
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1705 PyDoc_STRVAR(starmap_doc,
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1706 "starmap(function, sequence) --> starmap object\n\
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1707 \n\
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1708 Return an iterator whose values are returned from the function evaluated\n\
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1709 with a argument tuple taken from the given sequence.");
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1710
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1711 static PyTypeObject starmap_type = {
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1712 PyVarObject_HEAD_INIT(NULL, 0)
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1713 "itertools.starmap", /* tp_name */
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1714 sizeof(starmapobject), /* tp_basicsize */
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1715 0, /* tp_itemsize */
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1716 /* methods */
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1717 (destructor)starmap_dealloc, /* tp_dealloc */
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1718 0, /* tp_print */
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1719 0, /* tp_getattr */
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1720 0, /* tp_setattr */
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1721 0, /* tp_reserved */
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1722 0, /* tp_repr */
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1723 0, /* tp_as_number */
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1724 0, /* tp_as_sequence */
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1725 0, /* tp_as_mapping */
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1726 0, /* tp_hash */
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1727 0, /* tp_call */
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1728 0, /* tp_str */
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1729 PyObject_GenericGetAttr, /* tp_getattro */
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1730 0, /* tp_setattro */
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1731 0, /* tp_as_buffer */
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1732 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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1733 Py_TPFLAGS_BASETYPE, /* tp_flags */
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1734 starmap_doc, /* tp_doc */
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1735 (traverseproc)starmap_traverse, /* tp_traverse */
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1736 0, /* tp_clear */
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1737 0, /* tp_richcompare */
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1738 0, /* tp_weaklistoffset */
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1739 PyObject_SelfIter, /* tp_iter */
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1740 (iternextfunc)starmap_next, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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1741 starmap_methods, /* tp_methods */
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1742 0, /* tp_members */
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1743 0, /* tp_getset */
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1744 0, /* tp_base */
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1745 0, /* tp_dict */
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1746 0, /* tp_descr_get */
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1747 0, /* tp_descr_set */
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1748 0, /* tp_dictoffset */
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1749 0, /* tp_init */
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1750 0, /* tp_alloc */
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1751 starmap_new, /* tp_new */
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1752 PyObject_GC_Del, /* tp_free */
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1753 };
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1754
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1755
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1756 /* chain object ************************************************************/
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1757
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1758 typedef struct {
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1759 PyObject_HEAD
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1760 PyObject *source; /* Iterator over input iterables */
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1761 PyObject *active; /* Currently running input iterator */
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1762 } chainobject;
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1763
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1764 static PyTypeObject chain_type;
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1765
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1766 static PyObject *
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1767 chain_new_internal(PyTypeObject *type, PyObject *source)
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1768 {
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1769 chainobject *lz;
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1770
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1771 lz = (chainobject *)type->tp_alloc(type, 0);
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1772 if (lz == NULL) {
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1773 Py_DECREF(source);
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1774 return NULL;
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1775 }
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1776
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1777 lz->source = source;
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1778 lz->active = NULL;
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1779 return (PyObject *)lz;
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1780 }
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1781
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1782 static PyObject *
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1783 chain_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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1784 {
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1785 PyObject *source;
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1786
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1787 if (type == &chain_type && !_PyArg_NoKeywords("chain()", kwds))
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1788 return NULL;
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1789
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1790 source = PyObject_GetIter(args);
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1791 if (source == NULL)
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1792 return NULL;
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1793
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1794 return chain_new_internal(type, source);
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1795 }
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1796
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1797 static PyObject *
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1798 chain_new_from_iterable(PyTypeObject *type, PyObject *arg)
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1799 {
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1800 PyObject *source;
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1801
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1802 source = PyObject_GetIter(arg);
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1803 if (source == NULL)
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1804 return NULL;
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1805
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1806 return chain_new_internal(type, source);
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1807 }
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1808
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1809 static void
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1810 chain_dealloc(chainobject *lz)
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1811 {
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1812 PyObject_GC_UnTrack(lz);
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1813 Py_XDECREF(lz->active);
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1814 Py_XDECREF(lz->source);
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1815 Py_TYPE(lz)->tp_free(lz);
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Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1816 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
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diff changeset
1817
27747
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Raymond Hettinger <python@rcn.com>
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diff changeset
1818 static int
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61fa6b55c1de User requested changes to the itertools module.
Raymond Hettinger <python@rcn.com>
parents: 27770
diff changeset
1819 chain_traverse(chainobject *lz, visitproc visit, void *arg)
27747
941de791b17a SF bug #681003: itertools issues
Raymond Hettinger <python@rcn.com>
parents: 27570
diff changeset
1820 {
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1821 Py_VISIT(lz->source);
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1822 Py_VISIT(lz->active);
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diff changeset
1823 return 0;
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Raymond Hettinger <python@rcn.com>
parents: 27570
diff changeset
1824 }
941de791b17a SF bug #681003: itertools issues
Raymond Hettinger <python@rcn.com>
parents: 27570
diff changeset
1825
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Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1826 static PyObject *
28024
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Raymond Hettinger <python@rcn.com>
parents: 27770
diff changeset
1827 chain_next(chainobject *lz)
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Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1828 {
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1829 PyObject *item;
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1830
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1831 if (lz->source == NULL)
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1832 return NULL; /* already stopped */
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1833
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1834 if (lz->active == NULL) {
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1835 PyObject *iterable = PyIter_Next(lz->source);
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1836 if (iterable == NULL) {
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1837 Py_CLEAR(lz->source);
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1838 return NULL; /* no more input sources */
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1839 }
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1840 lz->active = PyObject_GetIter(iterable);
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1841 Py_DECREF(iterable);
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1842 if (lz->active == NULL) {
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1843 Py_CLEAR(lz->source);
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1844 return NULL; /* input not iterable */
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1845 }
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1846 }
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1847 item = PyIter_Next(lz->active);
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1848 if (item != NULL)
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1849 return item;
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1850 if (PyErr_Occurred()) {
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1851 if (PyErr_ExceptionMatches(PyExc_StopIteration))
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1852 PyErr_Clear();
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1853 else
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1854 return NULL; /* input raised an exception */
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1855 }
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1856 Py_CLEAR(lz->active);
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1857 return chain_next(lz); /* recurse and use next active */
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1858 }
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diff changeset
1859
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Kristján Valur Jónsson <kristjan@ccpgames.com>
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1860 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
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1861 chain_reduce(chainobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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1862 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
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1863 if (lz->source) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
1864 /* we can't pickle function objects (itertools.from_iterable) so
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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parents: 72926
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1865 * we must use setstate to replace the iterable. One day we
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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parents: 72926
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1866 * will fix pickling of functions
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1867 */
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1868 if (lz->active) {
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Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
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1869 return Py_BuildValue("O()(OO)", Py_TYPE(lz), lz->source, lz->active);
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1870 } else {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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parents: 72926
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1871 return Py_BuildValue("O()(O)", Py_TYPE(lz), lz->source);
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1872 }
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1873 } else {
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diff changeset
1874 return Py_BuildValue("O()", Py_TYPE(lz)); /* exhausted */
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1875 }
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1876 return NULL;
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1877 }
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1878
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1879 static PyObject *
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parents: 72926
diff changeset
1880 chain_setstate(chainobject *lz, PyObject *state)
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1881 {
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1882 PyObject *source, *active=NULL;
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1883 if (! PyArg_ParseTuple(state, "O|O", &source, &active))
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1884 return NULL;
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1885
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1886 Py_CLEAR(lz->source);
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1887 lz->source = source;
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1888 Py_INCREF(lz->source);
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1889 Py_CLEAR(lz->active);
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1890 lz->active = active;
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1891 Py_XINCREF(lz->active);
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1892 Py_RETURN_NONE;
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1893 }
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1894
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1895 PyDoc_STRVAR(chain_doc,
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1896 "chain(*iterables) --> chain object\n\
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1897 \n\
41501
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Georg Brandl <georg@python.org>
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1898 Return a chain object whose .__next__() method returns elements from the\n\
28024
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1899 first iterable until it is exhausted, then elements from the next\n\
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1900 iterable, until all of the iterables are exhausted.");
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1901
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1902 PyDoc_STRVAR(chain_from_iterable_doc,
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1903 "chain.from_iterable(iterable) --> chain object\n\
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1904 \n\
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1905 Alternate chain() contructor taking a single iterable argument\n\
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1906 that evaluates lazily.");
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1907
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1908 static PyMethodDef chain_methods[] = {
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1909 {"from_iterable", (PyCFunction) chain_new_from_iterable, METH_O | METH_CLASS,
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1910 chain_from_iterable_doc},
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1911 {"__reduce__", (PyCFunction)chain_reduce, METH_NOARGS,
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1912 reduce_doc},
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1913 {"__setstate__", (PyCFunction)chain_setstate, METH_O,
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1914 setstate_doc},
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1915 {NULL, NULL} /* sentinel */
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1916 };
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1917
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1918 static PyTypeObject chain_type = {
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1919 PyVarObject_HEAD_INIT(NULL, 0)
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1920 "itertools.chain", /* tp_name */
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1921 sizeof(chainobject), /* tp_basicsize */
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1922 0, /* tp_itemsize */
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1923 /* methods */
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1924 (destructor)chain_dealloc, /* tp_dealloc */
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1925 0, /* tp_print */
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1926 0, /* tp_getattr */
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1927 0, /* tp_setattr */
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1928 0, /* tp_reserved */
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1929 0, /* tp_repr */
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1930 0, /* tp_as_number */
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1931 0, /* tp_as_sequence */
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1932 0, /* tp_as_mapping */
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1933 0, /* tp_hash */
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1934 0, /* tp_call */
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1935 0, /* tp_str */
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1936 PyObject_GenericGetAttr, /* tp_getattro */
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1937 0, /* tp_setattro */
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1938 0, /* tp_as_buffer */
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1939 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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1940 Py_TPFLAGS_BASETYPE, /* tp_flags */
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1941 chain_doc, /* tp_doc */
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1942 (traverseproc)chain_traverse, /* tp_traverse */
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1943 0, /* tp_clear */
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1944 0, /* tp_richcompare */
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1945 0, /* tp_weaklistoffset */
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1946 PyObject_SelfIter, /* tp_iter */
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1947 (iternextfunc)chain_next, /* tp_iternext */
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1948 chain_methods, /* tp_methods */
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1949 0, /* tp_members */
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1950 0, /* tp_getset */
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1951 0, /* tp_base */
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1952 0, /* tp_dict */
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1953 0, /* tp_descr_get */
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1954 0, /* tp_descr_set */
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1955 0, /* tp_dictoffset */
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1956 0, /* tp_init */
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1957 0, /* tp_alloc */
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1958 chain_new, /* tp_new */
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1959 PyObject_GC_Del, /* tp_free */
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1960 };
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1961
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1962
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1963 /* product object ************************************************************/
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1964
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1965 typedef struct {
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1966 PyObject_HEAD
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1967 PyObject *pools; /* tuple of pool tuples */
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1968 Py_ssize_t *indices; /* one index per pool */
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1969 PyObject *result; /* most recently returned result tuple */
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1970 int stopped; /* set to 1 when the product iterator is exhausted */
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1971 } productobject;
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1972
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1973 static PyTypeObject product_type;
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1974
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1975 static PyObject *
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1976 product_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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1977 {
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1978 productobject *lz;
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1979 Py_ssize_t nargs, npools, repeat=1;
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1980 PyObject *pools = NULL;
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1981 Py_ssize_t *indices = NULL;
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1982 Py_ssize_t i;
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1983
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1984 if (kwds != NULL) {
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1985 char *kwlist[] = {"repeat", 0};
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1986 PyObject *tmpargs = PyTuple_New(0);
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1987 if (tmpargs == NULL)
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1988 return NULL;
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1989 if (!PyArg_ParseTupleAndKeywords(tmpargs, kwds, "|n:product", kwlist, &repeat)) {
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1990 Py_DECREF(tmpargs);
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1991 return NULL;
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1992 }
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1993 Py_DECREF(tmpargs);
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diff changeset
1994 if (repeat < 0) {
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diff changeset
1995 PyErr_SetString(PyExc_ValueError,
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diff changeset
1996 "repeat argument cannot be negative");
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diff changeset
1997 return NULL;
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1998 }
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diff changeset
1999 }
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diff changeset
2000
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diff changeset
2001 assert(PyTuple_Check(args));
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diff changeset
2002 nargs = (repeat == 0) ? 0 : PyTuple_GET_SIZE(args);
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diff changeset
2003 npools = nargs * repeat;
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2004
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diff changeset
2005 indices = PyMem_Malloc(npools * sizeof(Py_ssize_t));
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diff changeset
2006 if (indices == NULL) {
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diff changeset
2007 PyErr_NoMemory();
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diff changeset
2008 goto error;
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diff changeset
2009 }
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2010
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diff changeset
2011 pools = PyTuple_New(npools);
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diff changeset
2012 if (pools == NULL)
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diff changeset
2013 goto error;
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diff changeset
2014
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diff changeset
2015 for (i=0; i < nargs ; ++i) {
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diff changeset
2016 PyObject *item = PyTuple_GET_ITEM(args, i);
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diff changeset
2017 PyObject *pool = PySequence_Tuple(item);
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diff changeset
2018 if (pool == NULL)
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diff changeset
2019 goto error;
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diff changeset
2020 PyTuple_SET_ITEM(pools, i, pool);
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diff changeset
2021 indices[i] = 0;
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diff changeset
2022 }
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2023 for ( ; i < npools; ++i) {
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diff changeset
2024 PyObject *pool = PyTuple_GET_ITEM(pools, i - nargs);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2025 Py_INCREF(pool);
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parents: 57525
diff changeset
2026 PyTuple_SET_ITEM(pools, i, pool);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2027 indices[i] = 0;
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parents: 57525
diff changeset
2028 }
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parents: 57525
diff changeset
2029
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diff changeset
2030 /* create productobject structure */
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parents: 57525
diff changeset
2031 lz = (productobject *)type->tp_alloc(type, 0);
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parents: 57525
diff changeset
2032 if (lz == NULL)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2033 goto error;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2034
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parents: 57525
diff changeset
2035 lz->pools = pools;
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parents: 57525
diff changeset
2036 lz->indices = indices;
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parents: 57525
diff changeset
2037 lz->result = NULL;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2038 lz->stopped = 0;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2039
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parents: 57525
diff changeset
2040 return (PyObject *)lz;
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42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2041
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2042 error:
61466
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parents: 57525
diff changeset
2043 if (indices != NULL)
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parents: 57525
diff changeset
2044 PyMem_Free(indices);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2045 Py_XDECREF(pools);
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diff changeset
2046 return NULL;
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Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2047 }
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2048
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2049 static void
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2050 product_dealloc(productobject *lz)
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Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2051 {
61466
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diff changeset
2052 PyObject_GC_UnTrack(lz);
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parents: 57525
diff changeset
2053 Py_XDECREF(lz->pools);
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parents: 57525
diff changeset
2054 Py_XDECREF(lz->result);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2055 if (lz->indices != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2056 PyMem_Free(lz->indices);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
2057 Py_TYPE(lz)->tp_free(lz);
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42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2058 }
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2059
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2060 static int
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2061 product_traverse(productobject *lz, visitproc visit, void *arg)
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2062 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2063 Py_VISIT(lz->pools);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2064 Py_VISIT(lz->result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2065 return 0;
45435
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2066 }
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2067
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2068 static PyObject *
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2069 product_next(productobject *lz)
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2070 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2071 PyObject *pool;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2072 PyObject *elem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2073 PyObject *oldelem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2074 PyObject *pools = lz->pools;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2075 PyObject *result = lz->result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2076 Py_ssize_t npools = PyTuple_GET_SIZE(pools);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2077 Py_ssize_t i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2078
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2079 if (lz->stopped)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2080 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2081
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2082 if (result == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2083 /* On the first pass, return an initial tuple filled with the
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2084 first element from each pool. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2085 result = PyTuple_New(npools);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2086 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2087 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2088 lz->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2089 for (i=0; i < npools; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2090 pool = PyTuple_GET_ITEM(pools, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2091 if (PyTuple_GET_SIZE(pool) == 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2092 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2093 elem = PyTuple_GET_ITEM(pool, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2094 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2095 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2096 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2097 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2098 Py_ssize_t *indices = lz->indices;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2099
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
2100 /* Copy the previous result tuple or re-use it if available */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2101 if (Py_REFCNT(result) > 1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2102 PyObject *old_result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2103 result = PyTuple_New(npools);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2104 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2105 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2106 lz->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2107 for (i=0; i < npools; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2108 elem = PyTuple_GET_ITEM(old_result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2109 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2110 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2111 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
2112 Py_DECREF(old_result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2113 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
2114 /* Now, we've got the only copy so we can update it in-place */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
2115 assert (npools==0 || Py_REFCNT(result) == 1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2116
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
2117 /* Update the pool indices right-to-left. Only advance to the
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2118 next pool when the previous one rolls-over */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2119 for (i=npools-1 ; i >= 0 ; i--) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2120 pool = PyTuple_GET_ITEM(pools, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2121 indices[i]++;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
2122 if (indices[i] == PyTuple_GET_SIZE(pool)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
2123 /* Roll-over and advance to next pool */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2124 indices[i] = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2125 elem = PyTuple_GET_ITEM(pool, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2126 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2127 oldelem = PyTuple_GET_ITEM(result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2128 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2129 Py_DECREF(oldelem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2130 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2131 /* No rollover. Just increment and stop here. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2132 elem = PyTuple_GET_ITEM(pool, indices[i]);
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parents: 57525
diff changeset
2133 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2134 oldelem = PyTuple_GET_ITEM(result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2135 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2136 Py_DECREF(oldelem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2137 break;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2138 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2139 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2140
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2141 /* If i is negative, then the indices have all rolled-over
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2142 and we're done. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2143 if (i < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2144 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2145 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2146
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2147 Py_INCREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2148 return result;
45435
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2149
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2150 empty:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2151 lz->stopped = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2152 return NULL;
45435
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2153 }
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2154
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2155 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2156 product_reduce(productobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2157 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2158 if (lz->stopped) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2159 return Py_BuildValue("O(())", Py_TYPE(lz));
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2160 } else if (lz->result == NULL) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2161 return Py_BuildValue("OO", Py_TYPE(lz), lz->pools);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2162 } else {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2163 PyObject *indices;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2164 Py_ssize_t n, i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2165
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2166 /* we must pickle the indices use them for setstate, and
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2167 * additionally indicate that the iterator has started
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2168 */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2169 n = PyTuple_GET_SIZE(lz->pools);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2170 indices = PyTuple_New(n);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2171 if (indices == NULL)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2172 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2173 for (i=0; i<n; i++){
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2174 PyObject* index = PyLong_FromSsize_t(lz->indices[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2175 if (!index) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2176 Py_DECREF(indices);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2177 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2178 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2179 PyTuple_SET_ITEM(indices, i, index);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2180 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2181 return Py_BuildValue("OON", Py_TYPE(lz), lz->pools, indices);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2182 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2183 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2184
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2185 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2186 product_setstate(productobject *lz, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2187 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2188 PyObject *result;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2189 Py_ssize_t n, i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2190
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2191 n = PyTuple_GET_SIZE(lz->pools);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2192 if (!PyTuple_Check(state) || PyTuple_GET_SIZE(state) != n) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2193 PyErr_SetString(PyExc_ValueError, "invalid arguments");
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2194 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2195 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2196 for (i=0; i<n; i++)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2197 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2198 PyObject* indexObject = PyTuple_GET_ITEM(state, i);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2199 Py_ssize_t index = PyLong_AsSsize_t(indexObject);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2200 if (index < 0 && PyErr_Occurred())
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2201 return NULL; /* not an integer */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2202 /* clamp the index */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2203 if (index < 0)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2204 index = 0;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2205 else if (index > n-1)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2206 index = n-1;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2207 lz->indices[i] = index;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2208 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2209
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2210 result = PyTuple_New(n);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2211 if (!result)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2212 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2213 for (i=0; i<n; i++) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2214 PyObject *pool = PyTuple_GET_ITEM(lz->pools, i);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2215 PyObject *element = PyTuple_GET_ITEM(pool, lz->indices[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2216 Py_INCREF(element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2217 PyTuple_SET_ITEM(result, i, element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2218 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2219 Py_CLEAR(lz->result);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2220 lz->result = result;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2221 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2222 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2223
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2224 static PyMethodDef product_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2225 {"__reduce__", (PyCFunction)product_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2226 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2227 {"__setstate__", (PyCFunction)product_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2228 setstate_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2229 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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2230 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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2231
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Christian Heimes <christian@cheimes.de>
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2232 PyDoc_STRVAR(product_doc,
84262
1fad7a709aae Close #18285: add 'repeat' parameter to docstring for product
Andrew Kuchling <amk@amk.ca>
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2233 "product(*iterables, repeat=1) --> product object\n\
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2234 \n\
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2235 Cartesian product of input iterables. Equivalent to nested for-loops.\n\n\
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2236 For example, product(A, B) returns the same as: ((x,y) for x in A for y in B).\n\
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2237 The leftmost iterators are in the outermost for-loop, so the output tuples\n\
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2238 cycle in a manner similar to an odometer (with the rightmost element changing\n\
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2239 on every iteration).\n\n\
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2240 To compute the product of an iterable with itself, specify the number\n\
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2241 of repetitions with the optional repeat keyword argument. For example,\n\
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2242 product(A, repeat=4) means the same as product(A, A, A, A).\n\n\
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Christian Heimes <christian@cheimes.de>
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2243 product('ab', range(3)) --> ('a',0) ('a',1) ('a',2) ('b',0) ('b',1) ('b',2)\n\
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Christian Heimes <christian@cheimes.de>
parents: 44881
diff changeset
2244 product((0,1), (0,1), (0,1)) --> (0,0,0) (0,0,1) (0,1,0) (0,1,1) (1,0,0) ...");
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2245
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diff changeset
2246 static PyTypeObject product_type = {
61466
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2247 PyVarObject_HEAD_INIT(NULL, 0)
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2248 "itertools.product", /* tp_name */
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2249 sizeof(productobject), /* tp_basicsize */
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2250 0, /* tp_itemsize */
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2251 /* methods */
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2252 (destructor)product_dealloc, /* tp_dealloc */
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2253 0, /* tp_print */
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2254 0, /* tp_getattr */
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2255 0, /* tp_setattr */
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2256 0, /* tp_reserved */
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2257 0, /* tp_repr */
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2258 0, /* tp_as_number */
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2259 0, /* tp_as_sequence */
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2260 0, /* tp_as_mapping */
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2261 0, /* tp_hash */
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2262 0, /* tp_call */
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2263 0, /* tp_str */
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2264 PyObject_GenericGetAttr, /* tp_getattro */
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2265 0, /* tp_setattro */
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2266 0, /* tp_as_buffer */
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2267 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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2268 Py_TPFLAGS_BASETYPE, /* tp_flags */
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2269 product_doc, /* tp_doc */
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2270 (traverseproc)product_traverse, /* tp_traverse */
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2271 0, /* tp_clear */
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2272 0, /* tp_richcompare */
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2273 0, /* tp_weaklistoffset */
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2274 PyObject_SelfIter, /* tp_iter */
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2275 (iternextfunc)product_next, /* tp_iternext */
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Kristján Valur Jónsson <kristjan@ccpgames.com>
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2276 product_methods, /* tp_methods */
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diff changeset
2277 0, /* tp_members */
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parents: 57525
diff changeset
2278 0, /* tp_getset */
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parents: 57525
diff changeset
2279 0, /* tp_base */
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parents: 57525
diff changeset
2280 0, /* tp_dict */
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diff changeset
2281 0, /* tp_descr_get */
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diff changeset
2282 0, /* tp_descr_set */
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parents: 57525
diff changeset
2283 0, /* tp_dictoffset */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2284 0, /* tp_init */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2285 0, /* tp_alloc */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2286 product_new, /* tp_new */
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parents: 57525
diff changeset
2287 PyObject_GC_Del, /* tp_free */
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diff changeset
2288 };
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2289
42b3b117391d Merged revisions 60481,60485,60489-60492,60494-60496,60498-60499,60501-60503,60505-60506,60508-60509,60523-60524,60532,60543,60545,60547-60548,60552,60554,60556-60559,60561-60562,60569,60571-60572,60574,60576-60583,60585-60586,60589,60591,60594-60595,60597-60598,60600-60601,60606-60612,60615,60617,60619-60621,60623-60625,60627-60629,60631,60633,60635,60647,60650,60652,60654,60656,60658-60659,60664-60666,60668-60670,60672,60676,60678,60680-60683,60685-60686,60688,60690,60692-60694,60697-60700,60705-60706,60708,60711,60714,60720,60724-60730,60732,60736,60742,60744,60746,60748,60750-60751,60753,60756-60757,60759-60761,60763-60764,60766,60769-60770,60774-60784,60787-60789,60793,60796,60799-60809,60812-60813,60815-60821,60823-60826,60828-60829,60831-60834,60836,60838-60839,60846-60849,60852-60854,60856-60859,60861-60870,60874-60875,60880-60881,60886,60888-60890,60892,60894-60898,60900-60931,60933-60958 via svnmerge from
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diff changeset
2290
45548
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diff changeset
2291 /* combinations object ************************************************************/
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diff changeset
2292
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diff changeset
2293 typedef struct {
61466
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diff changeset
2294 PyObject_HEAD
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diff changeset
2295 PyObject *pool; /* input converted to a tuple */
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diff changeset
2296 Py_ssize_t *indices; /* one index per result element */
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diff changeset
2297 PyObject *result; /* most recently returned result tuple */
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diff changeset
2298 Py_ssize_t r; /* size of result tuple */
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diff changeset
2299 int stopped; /* set to 1 when the combinations iterator is exhausted */
45548
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diff changeset
2300 } combinationsobject;
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diff changeset
2301
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diff changeset
2302 static PyTypeObject combinations_type;
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diff changeset
2303
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diff changeset
2304 static PyObject *
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diff changeset
2305 combinations_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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diff changeset
2306 {
61466
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diff changeset
2307 combinationsobject *co;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
2308 Py_ssize_t n;
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diff changeset
2309 Py_ssize_t r;
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diff changeset
2310 PyObject *pool = NULL;
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diff changeset
2311 PyObject *iterable = NULL;
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diff changeset
2312 Py_ssize_t *indices = NULL;
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diff changeset
2313 Py_ssize_t i;
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diff changeset
2314 static char *kwargs[] = {"iterable", "r", NULL};
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diff changeset
2315
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diff changeset
2316 if (!PyArg_ParseTupleAndKeywords(args, kwds, "On:combinations", kwargs,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
2317 &iterable, &r))
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diff changeset
2318 return NULL;
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diff changeset
2319
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diff changeset
2320 pool = PySequence_Tuple(iterable);
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diff changeset
2321 if (pool == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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2322 goto error;
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diff changeset
2323 n = PyTuple_GET_SIZE(pool);
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diff changeset
2324 if (r < 0) {
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diff changeset
2325 PyErr_SetString(PyExc_ValueError, "r must be non-negative");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
2326 goto error;
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diff changeset
2327 }
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diff changeset
2328
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diff changeset
2329 indices = PyMem_Malloc(r * sizeof(Py_ssize_t));
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diff changeset
2330 if (indices == NULL) {
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diff changeset
2331 PyErr_NoMemory();
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diff changeset
2332 goto error;
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diff changeset
2333 }
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2334
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diff changeset
2335 for (i=0 ; i<r ; i++)
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diff changeset
2336 indices[i] = i;
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diff changeset
2337
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diff changeset
2338 /* create combinationsobject structure */
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diff changeset
2339 co = (combinationsobject *)type->tp_alloc(type, 0);
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2340 if (co == NULL)
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diff changeset
2341 goto error;
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diff changeset
2342
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diff changeset
2343 co->pool = pool;
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diff changeset
2344 co->indices = indices;
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2345 co->result = NULL;
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diff changeset
2346 co->r = r;
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diff changeset
2347 co->stopped = r > n ? 1 : 0;
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2348
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diff changeset
2349 return (PyObject *)co;
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diff changeset
2350
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diff changeset
2351 error:
61466
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2352 if (indices != NULL)
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2353 PyMem_Free(indices);
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diff changeset
2354 Py_XDECREF(pool);
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diff changeset
2355 return NULL;
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2356 }
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diff changeset
2357
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diff changeset
2358 static void
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diff changeset
2359 combinations_dealloc(combinationsobject *co)
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diff changeset
2360 {
61466
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diff changeset
2361 PyObject_GC_UnTrack(co);
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diff changeset
2362 Py_XDECREF(co->pool);
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diff changeset
2363 Py_XDECREF(co->result);
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2364 if (co->indices != NULL)
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2365 PyMem_Free(co->indices);
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2366 Py_TYPE(co)->tp_free(co);
45548
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diff changeset
2367 }
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diff changeset
2368
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diff changeset
2369 static int
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diff changeset
2370 combinations_traverse(combinationsobject *co, visitproc visit, void *arg)
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diff changeset
2371 {
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2372 Py_VISIT(co->pool);
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2373 Py_VISIT(co->result);
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diff changeset
2374 return 0;
45548
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2375 }
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2376
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2377 static PyObject *
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2378 combinations_next(combinationsobject *co)
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2379 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2380 PyObject *elem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2381 PyObject *oldelem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2382 PyObject *pool = co->pool;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2383 Py_ssize_t *indices = co->indices;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2384 PyObject *result = co->result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2385 Py_ssize_t n = PyTuple_GET_SIZE(pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2386 Py_ssize_t r = co->r;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2387 Py_ssize_t i, j, index;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2388
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2389 if (co->stopped)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2390 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2391
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2392 if (result == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2393 /* On the first pass, initialize result tuple using the indices */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2394 result = PyTuple_New(r);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2395 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2396 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2397 co->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2398 for (i=0; i<r ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2399 index = indices[i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2400 elem = PyTuple_GET_ITEM(pool, index);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2401 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2402 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2403 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2404 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2405 /* Copy the previous result tuple or re-use it if available */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2406 if (Py_REFCNT(result) > 1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2407 PyObject *old_result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2408 result = PyTuple_New(r);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2409 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2410 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2411 co->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2412 for (i=0; i<r ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2413 elem = PyTuple_GET_ITEM(old_result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2414 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2415 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2416 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2417 Py_DECREF(old_result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2418 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2419 /* Now, we've got the only copy so we can update it in-place
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2420 * CPython's empty tuple is a singleton and cached in
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2421 * PyTuple's freelist.
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2422 */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2423 assert(r == 0 || Py_REFCNT(result) == 1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2424
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2425 /* Scan indices right-to-left until finding one that is not
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2426 at its maximum (i + n - r). */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2427 for (i=r-1 ; i >= 0 && indices[i] == i+n-r ; i--)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2428 ;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2429
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2430 /* If i is negative, then the indices are all at
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2431 their maximum value and we're done. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2432 if (i < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2433 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2434
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2435 /* Increment the current index which we know is not at its
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2436 maximum. Then move back to the right setting each index
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2437 to its lowest possible value (one higher than the index
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2438 to its left -- this maintains the sort order invariant). */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2439 indices[i]++;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2440 for (j=i+1 ; j<r ; j++)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2441 indices[j] = indices[j-1] + 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2442
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2443 /* Update the result tuple for the new indices
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2444 starting with i, the leftmost index that changed */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2445 for ( ; i<r ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2446 index = indices[i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2447 elem = PyTuple_GET_ITEM(pool, index);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2448 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2449 oldelem = PyTuple_GET_ITEM(result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2450 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2451 Py_DECREF(oldelem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2452 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2453 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2454
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2455 Py_INCREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2456 return result;
45548
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2457
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2458 empty:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2459 co->stopped = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2460 return NULL;
45548
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2461 }
8c3c5b4eef55 Merged revisions 61038,61042-61045,61047,61050,61053,61055-61056,61061-61062,61066,61068,61070,61081-61095 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45534
diff changeset
2462
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2463 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2464 combinations_reduce(combinationsobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2465 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2466 if (lz->result == NULL) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2467 return Py_BuildValue("O(On)", Py_TYPE(lz), lz->pool, lz->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2468 } else if (lz->stopped) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2469 return Py_BuildValue("O(()n)", Py_TYPE(lz), lz->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2470 } else {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2471 PyObject *indices;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2472 Py_ssize_t i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2473
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2474 /* we must pickle the indices and use them for setstate */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2475 indices = PyTuple_New(lz->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2476 if (!indices)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2477 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2478 for (i=0; i<lz->r; i++)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2479 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2480 PyObject* index = PyLong_FromSsize_t(lz->indices[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2481 if (!index) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2482 Py_DECREF(indices);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2483 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2484 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2485 PyTuple_SET_ITEM(indices, i, index);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2486 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2487
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2488 return Py_BuildValue("O(On)N", Py_TYPE(lz), lz->pool, lz->r, indices);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2489 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2490 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2491
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2492 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2493 combinations_setstate(combinationsobject *lz, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2494 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2495 PyObject *result;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2496 Py_ssize_t i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2497 Py_ssize_t n = PyTuple_GET_SIZE(lz->pool);
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diff changeset
2498
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
2499 if (!PyTuple_Check(state) || PyTuple_GET_SIZE(state) != lz->r)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
2500 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2501 PyErr_SetString(PyExc_ValueError, "invalid arguments");
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2502 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2503 }
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Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2504
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2505 for (i=0; i<lz->r; i++)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2506 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2507 Py_ssize_t max;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2508 PyObject* indexObject = PyTuple_GET_ITEM(state, i);
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Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2509 Py_ssize_t index = PyLong_AsSsize_t(indexObject);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2510 if (index == -1 && PyErr_Occurred())
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2511 return NULL; /* not an integer */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2512 max = i + n - lz->r;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2513 /* clamp the index (beware of negative max) */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2514 if (index > max)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
2515 index = max;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2516 if (index < 0)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
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diff changeset
2517 index = 0;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2518 lz->indices[i] = index;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2519 }
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Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2520
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
2521 result = PyTuple_New(lz->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2522 if (result == NULL)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2523 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2524 for (i=0; i<lz->r; i++) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2525 PyObject *element = PyTuple_GET_ITEM(lz->pool, lz->indices[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2526 Py_INCREF(element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2527 PyTuple_SET_ITEM(result, i, element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2528 }
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diff changeset
2529
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2530 Py_CLEAR(lz->result);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2531 lz->result = result;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2532 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2533 }
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parents: 72926
diff changeset
2534
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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parents: 72926
diff changeset
2535 static PyMethodDef combinations_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2536 {"__reduce__", (PyCFunction)combinations_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2537 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2538 {"__setstate__", (PyCFunction)combinations_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2539 setstate_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2540 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2541 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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parents: 72926
diff changeset
2542
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parents: 45534
diff changeset
2543 PyDoc_STRVAR(combinations_doc,
57344
a790f84fbafa Fix docstrings for itertools combinatoric functions.
Raymond Hettinger <python@rcn.com>
parents: 57042
diff changeset
2544 "combinations(iterable, r) --> combinations object\n\
45548
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2545 \n\
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2546 Return successive r-length combinations of elements in the iterable.\n\n\
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2547 combinations(range(4), 3) --> (0,1,2), (0,1,3), (0,2,3), (1,2,3)");
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2548
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diff changeset
2549 static PyTypeObject combinations_type = {
61466
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2550 PyVarObject_HEAD_INIT(NULL, 0)
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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diff changeset
2551 "itertools.combinations", /* tp_name */
61466
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diff changeset
2552 sizeof(combinationsobject), /* tp_basicsize */
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diff changeset
2553 0, /* tp_itemsize */
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diff changeset
2554 /* methods */
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diff changeset
2555 (destructor)combinations_dealloc, /* tp_dealloc */
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2556 0, /* tp_print */
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diff changeset
2557 0, /* tp_getattr */
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diff changeset
2558 0, /* tp_setattr */
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diff changeset
2559 0, /* tp_reserved */
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diff changeset
2560 0, /* tp_repr */
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diff changeset
2561 0, /* tp_as_number */
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diff changeset
2562 0, /* tp_as_sequence */
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diff changeset
2563 0, /* tp_as_mapping */
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parents: 57525
diff changeset
2564 0, /* tp_hash */
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parents: 57525
diff changeset
2565 0, /* tp_call */
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diff changeset
2566 0, /* tp_str */
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parents: 57525
diff changeset
2567 PyObject_GenericGetAttr, /* tp_getattro */
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diff changeset
2568 0, /* tp_setattro */
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diff changeset
2569 0, /* tp_as_buffer */
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diff changeset
2570 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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diff changeset
2571 Py_TPFLAGS_BASETYPE, /* tp_flags */
76091
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parents: 72926
diff changeset
2572 combinations_doc, /* tp_doc */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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parents: 72926
diff changeset
2573 (traverseproc)combinations_traverse,/* tp_traverse */
61466
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2574 0, /* tp_clear */
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diff changeset
2575 0, /* tp_richcompare */
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parents: 57525
diff changeset
2576 0, /* tp_weaklistoffset */
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diff changeset
2577 PyObject_SelfIter, /* tp_iter */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
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parents: 72926
diff changeset
2578 (iternextfunc)combinations_next, /* tp_iternext */
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parents: 72926
diff changeset
2579 combinations_methods, /* tp_methods */
61466
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diff changeset
2580 0, /* tp_members */
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diff changeset
2581 0, /* tp_getset */
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diff changeset
2582 0, /* tp_base */
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diff changeset
2583 0, /* tp_dict */
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2584 0, /* tp_descr_get */
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diff changeset
2585 0, /* tp_descr_set */
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diff changeset
2586 0, /* tp_dictoffset */
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diff changeset
2587 0, /* tp_init */
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diff changeset
2588 0, /* tp_alloc */
76091
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diff changeset
2589 combinations_new, /* tp_new */
61466
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diff changeset
2590 PyObject_GC_Del, /* tp_free */
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2591 };
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2592
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2593
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
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diff changeset
2594 /* combinations with replacement object *******************************************/
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
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2595
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
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parents: 51063
diff changeset
2596 /* Equivalent to:
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
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2597
61466
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diff changeset
2598 def combinations_with_replacement(iterable, r):
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diff changeset
2599 "combinations_with_replacement('ABC', 2) --> AA AB AC BB BC CC"
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diff changeset
2600 # number items returned: (n+r-1)! / r! / (n-1)!
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2601 pool = tuple(iterable)
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2602 n = len(pool)
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2603 indices = [0] * r
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2604 yield tuple(pool[i] for i in indices)
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2605 while 1:
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2606 for i in reversed(range(r)):
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2607 if indices[i] != n - 1:
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2608 break
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2609 else:
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2610 return
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2611 indices[i:] = [indices[i] + 1] * (r - i)
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2612 yield tuple(pool[i] for i in indices)
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2613
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2614 def combinations_with_replacement2(iterable, r):
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2615 'Alternate version that filters from product()'
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2616 pool = tuple(iterable)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2617 n = len(pool)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2618 for indices in product(range(n), repeat=r):
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2619 if sorted(indices) == list(indices):
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2620 yield tuple(pool[i] for i in indices)
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2621 */
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2622 typedef struct {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2623 PyObject_HEAD
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2624 PyObject *pool; /* input converted to a tuple */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2625 Py_ssize_t *indices; /* one index per result element */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2626 PyObject *result; /* most recently returned result tuple */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2627 Py_ssize_t r; /* size of result tuple */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2628 int stopped; /* set to 1 when the cwr iterator is exhausted */
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2629 } cwrobject;
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2630
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2631 static PyTypeObject cwr_type;
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2632
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2633 static PyObject *
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2634 cwr_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2635 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2636 cwrobject *co;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2637 Py_ssize_t n;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2638 Py_ssize_t r;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2639 PyObject *pool = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2640 PyObject *iterable = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2641 Py_ssize_t *indices = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2642 Py_ssize_t i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2643 static char *kwargs[] = {"iterable", "r", NULL};
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2644
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2645 if (!PyArg_ParseTupleAndKeywords(args, kwds, "On:combinations_with_replacement", kwargs,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2646 &iterable, &r))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2647 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2648
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2649 pool = PySequence_Tuple(iterable);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2650 if (pool == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2651 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2652 n = PyTuple_GET_SIZE(pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2653 if (r < 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2654 PyErr_SetString(PyExc_ValueError, "r must be non-negative");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2655 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2656 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2657
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2658 indices = PyMem_Malloc(r * sizeof(Py_ssize_t));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2659 if (indices == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2660 PyErr_NoMemory();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2661 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2662 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2663
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2664 for (i=0 ; i<r ; i++)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2665 indices[i] = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2666
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2667 /* create cwrobject structure */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2668 co = (cwrobject *)type->tp_alloc(type, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2669 if (co == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2670 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2671
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2672 co->pool = pool;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2673 co->indices = indices;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2674 co->result = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2675 co->r = r;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2676 co->stopped = !n && r;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2677
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2678 return (PyObject *)co;
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2679
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2680 error:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2681 if (indices != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2682 PyMem_Free(indices);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2683 Py_XDECREF(pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2684 return NULL;
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2685 }
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2686
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2687 static void
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2688 cwr_dealloc(cwrobject *co)
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2689 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2690 PyObject_GC_UnTrack(co);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2691 Py_XDECREF(co->pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2692 Py_XDECREF(co->result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2693 if (co->indices != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2694 PyMem_Free(co->indices);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2695 Py_TYPE(co)->tp_free(co);
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2696 }
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2697
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2698 static int
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2699 cwr_traverse(cwrobject *co, visitproc visit, void *arg)
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2700 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2701 Py_VISIT(co->pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2702 Py_VISIT(co->result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2703 return 0;
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2704 }
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2705
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2706 static PyObject *
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2707 cwr_next(cwrobject *co)
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2708 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2709 PyObject *elem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2710 PyObject *oldelem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2711 PyObject *pool = co->pool;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2712 Py_ssize_t *indices = co->indices;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2713 PyObject *result = co->result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2714 Py_ssize_t n = PyTuple_GET_SIZE(pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2715 Py_ssize_t r = co->r;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2716 Py_ssize_t i, j, index;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2717
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2718 if (co->stopped)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2719 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2720
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2721 if (result == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2722 /* On the first pass, initialize result tuple using the indices */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2723 result = PyTuple_New(r);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2724 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2725 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2726 co->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2727 for (i=0; i<r ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2728 index = indices[i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2729 elem = PyTuple_GET_ITEM(pool, index);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2730 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2731 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2732 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2733 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2734 /* Copy the previous result tuple or re-use it if available */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2735 if (Py_REFCNT(result) > 1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2736 PyObject *old_result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2737 result = PyTuple_New(r);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2738 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2739 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2740 co->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2741 for (i=0; i<r ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2742 elem = PyTuple_GET_ITEM(old_result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2743 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2744 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2745 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2746 Py_DECREF(old_result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2747 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2748 /* Now, we've got the only copy so we can update it in-place CPython's
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2749 empty tuple is a singleton and cached in PyTuple's freelist. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2750 assert(r == 0 || Py_REFCNT(result) == 1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2751
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2752 /* Scan indices right-to-left until finding one that is not
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2753 * at its maximum (n-1). */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2754 for (i=r-1 ; i >= 0 && indices[i] == n-1; i--)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2755 ;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2756
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2757 /* If i is negative, then the indices are all at
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2758 their maximum value and we're done. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2759 if (i < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2760 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2761
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2762 /* Increment the current index which we know is not at its
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2763 maximum. Then set all to the right to the same value. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2764 indices[i]++;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2765 for (j=i+1 ; j<r ; j++)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2766 indices[j] = indices[j-1];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2767
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2768 /* Update the result tuple for the new indices
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2769 starting with i, the leftmost index that changed */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2770 for ( ; i<r ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2771 index = indices[i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2772 elem = PyTuple_GET_ITEM(pool, index);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2773 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2774 oldelem = PyTuple_GET_ITEM(result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2775 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2776 Py_DECREF(oldelem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2777 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2778 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2779
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2780 Py_INCREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2781 return result;
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2782
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2783 empty:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2784 co->stopped = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2785 return NULL;
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2786 }
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2787
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2788 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2789 cwr_reduce(cwrobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2790 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2791 if (lz->result == NULL) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2792 return Py_BuildValue("O(On)", Py_TYPE(lz), lz->pool, lz->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2793 } else if (lz->stopped) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2794 return Py_BuildValue("O(()n)", Py_TYPE(lz), lz->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2795 } else {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2796 PyObject *indices;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2797 Py_ssize_t i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2798
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2799 /* we must pickle the indices and use them for setstate */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2800 indices = PyTuple_New(lz->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2801 if (!indices)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2802 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2803 for (i=0; i<lz->r; i++)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2804 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2805 PyObject* index = PyLong_FromSsize_t(lz->indices[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2806 if (!index) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2807 Py_DECREF(indices);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2808 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2809 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2810 PyTuple_SET_ITEM(indices, i, index);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2811 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2812
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2813 return Py_BuildValue("O(On)N", Py_TYPE(lz), lz->pool, lz->r, indices);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2814 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2815 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2816
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2817 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2818 cwr_setstate(cwrobject *lz, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2819 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2820 PyObject *result;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2821 Py_ssize_t n, i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2822
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2823 if (!PyTuple_Check(state) || PyTuple_GET_SIZE(state) != lz->r)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2824 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2825 PyErr_SetString(PyExc_ValueError, "invalid arguments");
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2826 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2827 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2828
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2829 n = PyTuple_GET_SIZE(lz->pool);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2830 for (i=0; i<lz->r; i++)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2831 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2832 PyObject* indexObject = PyTuple_GET_ITEM(state, i);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2833 Py_ssize_t index = PyLong_AsSsize_t(indexObject);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2834 if (index < 0 && PyErr_Occurred())
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2835 return NULL; /* not an integer */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2836 /* clamp the index */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2837 if (index < 0)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2838 index = 0;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2839 else if (index > n-1)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2840 index = n-1;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2841 lz->indices[i] = index;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2842 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2843 result = PyTuple_New(lz->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2844 if (result == NULL)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2845 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2846 for (i=0; i<lz->r; i++) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2847 PyObject *element = PyTuple_GET_ITEM(lz->pool, lz->indices[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2848 Py_INCREF(element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2849 PyTuple_SET_ITEM(result, i, element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2850 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2851 Py_CLEAR(lz->result);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2852 lz->result = result;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2853 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2854 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2855
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2856 static PyMethodDef cwr_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2857 {"__reduce__", (PyCFunction)cwr_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2858 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2859 {"__setstate__", (PyCFunction)cwr_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2860 setstate_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2861 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2862 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2863
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2864 PyDoc_STRVAR(cwr_doc,
57344
a790f84fbafa Fix docstrings for itertools combinatoric functions.
Raymond Hettinger <python@rcn.com>
parents: 57042
diff changeset
2865 "combinations_with_replacement(iterable, r) --> combinations_with_replacement object\n\
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2866 \n\
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2867 Return successive r-length combinations of elements in the iterable\n\
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2868 allowing individual elements to have successive repeats.\n\
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2869 combinations_with_replacement('ABC', 2) --> AA AB AC BB BC CC");
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2870
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2871 static PyTypeObject cwr_type = {
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diff changeset
2872 PyVarObject_HEAD_INIT(NULL, 0)
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4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2873 "itertools.combinations_with_replacement", /* tp_name */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2874 sizeof(cwrobject), /* tp_basicsize */
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2875 0, /* tp_itemsize */
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2876 /* methods */
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4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2877 (destructor)cwr_dealloc, /* tp_dealloc */
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2878 0, /* tp_print */
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2879 0, /* tp_getattr */
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2880 0, /* tp_setattr */
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2881 0, /* tp_reserved */
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2882 0, /* tp_repr */
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2883 0, /* tp_as_number */
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2884 0, /* tp_as_sequence */
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2885 0, /* tp_as_mapping */
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2886 0, /* tp_hash */
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2887 0, /* tp_call */
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2888 0, /* tp_str */
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4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2889 PyObject_GenericGetAttr, /* tp_getattro */
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2890 0, /* tp_setattro */
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2891 0, /* tp_as_buffer */
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2892 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2893 Py_TPFLAGS_BASETYPE, /* tp_flags */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2894 cwr_doc, /* tp_doc */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2895 (traverseproc)cwr_traverse, /* tp_traverse */
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2896 0, /* tp_clear */
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2897 0, /* tp_richcompare */
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2898 0, /* tp_weaklistoffset */
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Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2899 PyObject_SelfIter, /* tp_iter */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2900 (iternextfunc)cwr_next, /* tp_iternext */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2901 cwr_methods, /* tp_methods */
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2902 0, /* tp_members */
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2903 0, /* tp_getset */
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2904 0, /* tp_base */
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2905 0, /* tp_dict */
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2906 0, /* tp_descr_get */
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2907 0, /* tp_descr_set */
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2908 0, /* tp_dictoffset */
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2909 0, /* tp_init */
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2910 0, /* tp_alloc */
76091
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Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2911 cwr_new, /* tp_new */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
2912 PyObject_GC_Del, /* tp_free */
51100
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2913 };
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2914
4005011d3a09 Forward port r69001: itertools.combinations_with_replacement().
Raymond Hettinger <python@rcn.com>
parents: 51063
diff changeset
2915
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2916 /* permutations object ************************************************************
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2917
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2918 def permutations(iterable, r=None):
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2919 'permutations(range(3), 2) --> (0,1) (0,2) (1,0) (1,2) (2,0) (2,1)'
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2920 pool = tuple(iterable)
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2921 n = len(pool)
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2922 r = n if r is None else r
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2923 indices = range(n)
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2924 cycles = range(n-r+1, n+1)[::-1]
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2925 yield tuple(pool[i] for i in indices[:r])
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2926 while n:
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2927 for i in reversed(range(r)):
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2928 cycles[i] -= 1
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2929 if cycles[i] == 0:
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2930 indices[i:] = indices[i+1:] + indices[i:i+1]
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2931 cycles[i] = n - i
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2932 else:
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2933 j = cycles[i]
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2934 indices[i], indices[-j] = indices[-j], indices[i]
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2935 yield tuple(pool[i] for i in indices[:r])
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2936 break
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2937 else:
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2938 return
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2939 */
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2940
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2941 typedef struct {
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2942 PyObject_HEAD
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2943 PyObject *pool; /* input converted to a tuple */
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2944 Py_ssize_t *indices; /* one index per element in the pool */
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2945 Py_ssize_t *cycles; /* one rollover counter per element in the result */
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2946 PyObject *result; /* most recently returned result tuple */
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2947 Py_ssize_t r; /* size of result tuple */
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2948 int stopped; /* set to 1 when the permutations iterator is exhausted */
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diff changeset
2949 } permutationsobject;
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2950
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diff changeset
2951 static PyTypeObject permutations_type;
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2952
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diff changeset
2953 static PyObject *
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diff changeset
2954 permutations_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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2955 {
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2956 permutationsobject *po;
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2957 Py_ssize_t n;
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2958 Py_ssize_t r;
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parents: 57525
diff changeset
2959 PyObject *robj = Py_None;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2960 PyObject *pool = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2961 PyObject *iterable = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2962 Py_ssize_t *indices = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2963 Py_ssize_t *cycles = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2964 Py_ssize_t i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2965 static char *kwargs[] = {"iterable", "r", NULL};
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2966
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2967 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:permutations", kwargs,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2968 &iterable, &robj))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2969 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2970
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2971 pool = PySequence_Tuple(iterable);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2972 if (pool == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2973 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2974 n = PyTuple_GET_SIZE(pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2975
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2976 r = n;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2977 if (robj != Py_None) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2978 if (!PyLong_Check(robj)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2979 PyErr_SetString(PyExc_TypeError, "Expected int as r");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2980 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2981 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2982 r = PyLong_AsSsize_t(robj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2983 if (r == -1 && PyErr_Occurred())
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2984 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2985 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2986 if (r < 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2987 PyErr_SetString(PyExc_ValueError, "r must be non-negative");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2988 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2989 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2990
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2991 indices = PyMem_Malloc(n * sizeof(Py_ssize_t));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2992 cycles = PyMem_Malloc(r * sizeof(Py_ssize_t));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2993 if (indices == NULL || cycles == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2994 PyErr_NoMemory();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2995 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2996 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2997
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2998 for (i=0 ; i<n ; i++)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
2999 indices[i] = i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3000 for (i=0 ; i<r ; i++)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3001 cycles[i] = n - i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3002
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3003 /* create permutationsobject structure */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3004 po = (permutationsobject *)type->tp_alloc(type, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3005 if (po == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3006 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3007
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3008 po->pool = pool;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3009 po->indices = indices;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3010 po->cycles = cycles;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3011 po->result = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3012 po->r = r;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3013 po->stopped = r > n ? 1 : 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3014
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3015 return (PyObject *)po;
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3016
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3017 error:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3018 if (indices != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3019 PyMem_Free(indices);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3020 if (cycles != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3021 PyMem_Free(cycles);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3022 Py_XDECREF(pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3023 return NULL;
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3024 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3025
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3026 static void
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3027 permutations_dealloc(permutationsobject *po)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3028 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3029 PyObject_GC_UnTrack(po);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3030 Py_XDECREF(po->pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3031 Py_XDECREF(po->result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3032 PyMem_Free(po->indices);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3033 PyMem_Free(po->cycles);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3034 Py_TYPE(po)->tp_free(po);
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3035 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3036
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3037 static int
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3038 permutations_traverse(permutationsobject *po, visitproc visit, void *arg)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3039 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3040 Py_VISIT(po->pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3041 Py_VISIT(po->result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3042 return 0;
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3043 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3044
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3045 static PyObject *
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3046 permutations_next(permutationsobject *po)
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3047 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3048 PyObject *elem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3049 PyObject *oldelem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3050 PyObject *pool = po->pool;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3051 Py_ssize_t *indices = po->indices;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3052 Py_ssize_t *cycles = po->cycles;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3053 PyObject *result = po->result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3054 Py_ssize_t n = PyTuple_GET_SIZE(pool);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3055 Py_ssize_t r = po->r;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3056 Py_ssize_t i, j, k, index;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3057
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3058 if (po->stopped)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3059 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3060
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3061 if (result == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3062 /* On the first pass, initialize result tuple using the indices */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3063 result = PyTuple_New(r);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3064 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3065 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3066 po->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3067 for (i=0; i<r ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3068 index = indices[i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3069 elem = PyTuple_GET_ITEM(pool, index);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3070 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3071 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3072 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3073 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3074 if (n == 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3075 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3076
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3077 /* Copy the previous result tuple or re-use it if available */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3078 if (Py_REFCNT(result) > 1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3079 PyObject *old_result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3080 result = PyTuple_New(r);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3081 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3082 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3083 po->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3084 for (i=0; i<r ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3085 elem = PyTuple_GET_ITEM(old_result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3086 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3087 PyTuple_SET_ITEM(result, i, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3088 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3089 Py_DECREF(old_result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3090 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3091 /* Now, we've got the only copy so we can update it in-place */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3092 assert(r == 0 || Py_REFCNT(result) == 1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3093
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3094 /* Decrement rightmost cycle, moving leftward upon zero rollover */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3095 for (i=r-1 ; i>=0 ; i--) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3096 cycles[i] -= 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3097 if (cycles[i] == 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3098 /* rotatation: indices[i:] = indices[i+1:] + indices[i:i+1] */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3099 index = indices[i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3100 for (j=i ; j<n-1 ; j++)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3101 indices[j] = indices[j+1];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3102 indices[n-1] = index;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3103 cycles[i] = n - i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3104 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3105 j = cycles[i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3106 index = indices[i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3107 indices[i] = indices[n-j];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3108 indices[n-j] = index;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3109
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3110 for (k=i; k<r ; k++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3111 /* start with i, the leftmost element that changed */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3112 /* yield tuple(pool[k] for k in indices[:r]) */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3113 index = indices[k];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3114 elem = PyTuple_GET_ITEM(pool, index);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3115 Py_INCREF(elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3116 oldelem = PyTuple_GET_ITEM(result, k);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3117 PyTuple_SET_ITEM(result, k, elem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3118 Py_DECREF(oldelem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3119 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3120 break;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3121 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3122 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3123 /* If i is negative, then the cycles have all
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3124 rolled-over and we're done. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3125 if (i < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3126 goto empty;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3127 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3128 Py_INCREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3129 return result;
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3130
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3131 empty:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3132 po->stopped = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3133 return NULL;
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3134 }
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3135
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3136 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3137 permutations_reduce(permutationsobject *po)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3138 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3139 if (po->result == NULL) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3140 return Py_BuildValue("O(On)", Py_TYPE(po), po->pool, po->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3141 } else if (po->stopped) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3142 return Py_BuildValue("O(()n)", Py_TYPE(po), po->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3143 } else {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3144 PyObject *indices=NULL, *cycles=NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3145 Py_ssize_t n, i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3146
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3147 /* we must pickle the indices and cycles and use them for setstate */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3148 n = PyTuple_GET_SIZE(po->pool);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3149 indices = PyTuple_New(n);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3150 if (indices == NULL)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3151 goto err;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3152 for (i=0; i<n; i++){
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3153 PyObject* index = PyLong_FromSsize_t(po->indices[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3154 if (!index)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3155 goto err;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3156 PyTuple_SET_ITEM(indices, i, index);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3157 }
81705
20c4d55f4b69 Clean trailing whitespace in itertoolsmodule.c.
Serhiy Storchaka <storchaka@gmail.com>
parents: 81701 81704
diff changeset
3158
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3159 cycles = PyTuple_New(po->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3160 if (cycles == NULL)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3161 goto err;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3162 for (i=0; i<po->r; i++)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3163 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3164 PyObject* index = PyLong_FromSsize_t(po->cycles[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3165 if (!index)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3166 goto err;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3167 PyTuple_SET_ITEM(cycles, i, index);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3168 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3169 return Py_BuildValue("O(On)(NN)", Py_TYPE(po),
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3170 po->pool, po->r,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3171 indices, cycles);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3172 err:
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3173 Py_XDECREF(indices);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3174 Py_XDECREF(cycles);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3175 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3176 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3177 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3178
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3179 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3180 permutations_setstate(permutationsobject *po, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3181 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3182 PyObject *indices, *cycles, *result;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3183 Py_ssize_t n, i;
81705
20c4d55f4b69 Clean trailing whitespace in itertoolsmodule.c.
Serhiy Storchaka <storchaka@gmail.com>
parents: 81701 81704
diff changeset
3184
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3185 if (!PyArg_ParseTuple(state, "O!O!",
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3186 &PyTuple_Type, &indices,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3187 &PyTuple_Type, &cycles))
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3188 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3189
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3190 n = PyTuple_GET_SIZE(po->pool);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3191 if (PyTuple_GET_SIZE(indices) != n ||
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3192 PyTuple_GET_SIZE(cycles) != po->r)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3193 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3194 PyErr_SetString(PyExc_ValueError, "invalid arguments");
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3195 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3196 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3197
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3198 for (i=0; i<n; i++)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3199 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3200 PyObject* indexObject = PyTuple_GET_ITEM(indices, i);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3201 Py_ssize_t index = PyLong_AsSsize_t(indexObject);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3202 if (index < 0 && PyErr_Occurred())
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3203 return NULL; /* not an integer */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3204 /* clamp the index */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3205 if (index < 0)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3206 index = 0;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3207 else if (index > n-1)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3208 index = n-1;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3209 po->indices[i] = index;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3210 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3211
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3212 for (i=0; i<po->r; i++)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3213 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3214 PyObject* indexObject = PyTuple_GET_ITEM(cycles, i);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3215 Py_ssize_t index = PyLong_AsSsize_t(indexObject);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3216 if (index < 0 && PyErr_Occurred())
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3217 return NULL; /* not an integer */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3218 if (index < 1)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3219 index = 1;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3220 else if (index > n-i)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3221 index = n-i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3222 po->cycles[i] = index;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3223 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3224 result = PyTuple_New(po->r);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3225 if (result == NULL)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3226 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3227 for (i=0; i<po->r; i++) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3228 PyObject *element = PyTuple_GET_ITEM(po->pool, po->indices[i]);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3229 Py_INCREF(element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3230 PyTuple_SET_ITEM(result, i, element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3231 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3232 Py_CLEAR(po->result);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3233 po->result = result;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3234 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3235 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3236
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3237 static PyMethodDef permuations_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3238 {"__reduce__", (PyCFunction)permutations_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3239 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3240 {"__setstate__", (PyCFunction)permutations_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3241 setstate_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3242 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3243 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3244
45773
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Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3245 PyDoc_STRVAR(permutations_doc,
47555
7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
Georg Brandl <georg@python.org>
parents: 46238
diff changeset
3246 "permutations(iterable[, r]) --> permutations object\n\
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3247 \n\
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3248 Return successive r-length permutations of elements in the iterable.\n\n\
47555
7d824fd131ad Merged revisions 63829-63831,63858,63865,63879,63882,63948,63970-63972,63976,63989,64014-64015,64021-64022,64063-64065,64067 via svnmerge from
Georg Brandl <georg@python.org>
parents: 46238
diff changeset
3249 permutations(range(3), 2) --> (0,1), (0,2), (1,0), (1,2), (2,0), (2,1)");
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3250
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3251 static PyTypeObject permutations_type = {
61466
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parents: 57525
diff changeset
3252 PyVarObject_HEAD_INIT(NULL, 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3253 "itertools.permutations", /* tp_name */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3254 sizeof(permutationsobject), /* tp_basicsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3255 0, /* tp_itemsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3256 /* methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3257 (destructor)permutations_dealloc, /* tp_dealloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3258 0, /* tp_print */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3259 0, /* tp_getattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3260 0, /* tp_setattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3261 0, /* tp_reserved */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3262 0, /* tp_repr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3263 0, /* tp_as_number */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3264 0, /* tp_as_sequence */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3265 0, /* tp_as_mapping */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3266 0, /* tp_hash */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3267 0, /* tp_call */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3268 0, /* tp_str */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3269 PyObject_GenericGetAttr, /* tp_getattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3270 0, /* tp_setattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3271 0, /* tp_as_buffer */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3272 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3273 Py_TPFLAGS_BASETYPE, /* tp_flags */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3274 permutations_doc, /* tp_doc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3275 (traverseproc)permutations_traverse, /* tp_traverse */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3276 0, /* tp_clear */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3277 0, /* tp_richcompare */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3278 0, /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3279 PyObject_SelfIter, /* tp_iter */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3280 (iternextfunc)permutations_next, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3281 permuations_methods, /* tp_methods */
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3282 0, /* tp_members */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3283 0, /* tp_getset */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3284 0, /* tp_base */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3285 0, /* tp_dict */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3286 0, /* tp_descr_get */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3287 0, /* tp_descr_set */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3288 0, /* tp_dictoffset */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3289 0, /* tp_init */
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parents: 57525
diff changeset
3290 0, /* tp_alloc */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3291 permutations_new, /* tp_new */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3292 PyObject_GC_Del, /* tp_free */
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832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3293 };
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3294
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3295 /* accumulate object ************************************************************/
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3296
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3297 typedef struct {
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3298 PyObject_HEAD
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3299 PyObject *total;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3300 PyObject *it;
69021
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3301 PyObject *binop;
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3302 } accumulateobject;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3303
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3304 static PyTypeObject accumulate_type;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3305
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3306 static PyObject *
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3307 accumulate_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3308 {
69021
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3309 static char *kwargs[] = {"iterable", "func", NULL};
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3310 PyObject *iterable;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3311 PyObject *it;
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3312 PyObject *binop = Py_None;
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3313 accumulateobject *lz;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3314
69021
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3315 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|O:accumulate",
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3316 kwargs, &iterable, &binop))
66619
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3317 return NULL;
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3318
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3319 /* Get iterator. */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3320 it = PyObject_GetIter(iterable);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3321 if (it == NULL)
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3322 return NULL;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3323
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3324 /* create accumulateobject structure */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3325 lz = (accumulateobject *)type->tp_alloc(type, 0);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3326 if (lz == NULL) {
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3327 Py_DECREF(it);
66619
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3328 return NULL;
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3329 }
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3330
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3331 if (binop != Py_None) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3332 Py_XINCREF(binop);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3333 lz->binop = binop;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3334 }
66619
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3335 lz->total = NULL;
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3336 lz->it = it;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3337 return (PyObject *)lz;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3338 }
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3339
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3340 static void
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3341 accumulate_dealloc(accumulateobject *lz)
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3342 {
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3343 PyObject_GC_UnTrack(lz);
69021
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3344 Py_XDECREF(lz->binop);
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3345 Py_XDECREF(lz->total);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3346 Py_XDECREF(lz->it);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3347 Py_TYPE(lz)->tp_free(lz);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3348 }
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3349
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3350 static int
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3351 accumulate_traverse(accumulateobject *lz, visitproc visit, void *arg)
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3352 {
69021
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3353 Py_VISIT(lz->binop);
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3354 Py_VISIT(lz->it);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3355 Py_VISIT(lz->total);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3356 return 0;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3357 }
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3358
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3359 static PyObject *
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3360 accumulate_next(accumulateobject *lz)
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3361 {
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3362 PyObject *val, *oldtotal, *newtotal;
81704
68485ac1972a Clean trailing whitespace in itertoolsmodule.c.
Serhiy Storchaka <storchaka@gmail.com>
parents: 81700
diff changeset
3363
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3364 val = PyIter_Next(lz->it);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3365 if (val == NULL)
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3366 return NULL;
81704
68485ac1972a Clean trailing whitespace in itertoolsmodule.c.
Serhiy Storchaka <storchaka@gmail.com>
parents: 81700
diff changeset
3367
66619
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3368 if (lz->total == NULL) {
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3369 Py_INCREF(val);
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3370 lz->total = val;
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3371 return lz->total;
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3372 }
81704
68485ac1972a Clean trailing whitespace in itertoolsmodule.c.
Serhiy Storchaka <storchaka@gmail.com>
parents: 81700
diff changeset
3373
81705
20c4d55f4b69 Clean trailing whitespace in itertoolsmodule.c.
Serhiy Storchaka <storchaka@gmail.com>
parents: 81701 81704
diff changeset
3374 if (lz->binop == NULL)
69021
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3375 newtotal = PyNumber_Add(lz->total, val);
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3376 else
79ccefd30a37 Add optional *func* argument to itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66619
diff changeset
3377 newtotal = PyObject_CallFunctionObjArgs(lz->binop, lz->total, val, NULL);
66619
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3378 Py_DECREF(val);
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3379 if (newtotal == NULL)
66619
1098fab85e47 Simplify the signature for itertools.accumulate() to match numpy. Handle one item iterable the same way as min()/max().
Raymond Hettinger <python@rcn.com>
parents: 66589
diff changeset
3380 return NULL;
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3381
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3382 oldtotal = lz->total;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3383 lz->total = newtotal;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3384 Py_DECREF(oldtotal);
81704
68485ac1972a Clean trailing whitespace in itertoolsmodule.c.
Serhiy Storchaka <storchaka@gmail.com>
parents: 81700
diff changeset
3385
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3386 Py_INCREF(newtotal);
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3387 return newtotal;
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3388 }
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3389
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3390 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3391 accumulate_reduce(accumulateobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3392 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3393 return Py_BuildValue("O(OO)O", Py_TYPE(lz),
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3394 lz->it, lz->binop?lz->binop:Py_None,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3395 lz->total?lz->total:Py_None);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3396 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3397
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3398 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3399 accumulate_setstate(accumulateobject *lz, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3400 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3401 Py_CLEAR(lz->total);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3402 lz->total = state;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3403 Py_INCREF(lz->total);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3404 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3405 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3406
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3407 static PyMethodDef accumulate_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3408 {"__reduce__", (PyCFunction)accumulate_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3409 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3410 {"__setstate__", (PyCFunction)accumulate_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3411 setstate_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3412 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3413 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3414
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3415 PyDoc_STRVAR(accumulate_doc,
69022
822c7c0d27d1 Update docstrings for itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 69021
diff changeset
3416 "accumulate(iterable[, func]) --> accumulate object\n\
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3417 \n\
69022
822c7c0d27d1 Update docstrings for itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 69021
diff changeset
3418 Return series of accumulated sums (or other binary function results).");
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3419
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3420 static PyTypeObject accumulate_type = {
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3421 PyVarObject_HEAD_INIT(NULL, 0)
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3422 "itertools.accumulate", /* tp_name */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3423 sizeof(accumulateobject), /* tp_basicsize */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3424 0, /* tp_itemsize */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3425 /* methods */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3426 (destructor)accumulate_dealloc, /* tp_dealloc */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3427 0, /* tp_print */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3428 0, /* tp_getattr */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3429 0, /* tp_setattr */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3430 0, /* tp_reserved */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3431 0, /* tp_repr */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3432 0, /* tp_as_number */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3433 0, /* tp_as_sequence */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3434 0, /* tp_as_mapping */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3435 0, /* tp_hash */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3436 0, /* tp_call */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3437 0, /* tp_str */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3438 PyObject_GenericGetAttr, /* tp_getattro */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3439 0, /* tp_setattro */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3440 0, /* tp_as_buffer */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3441 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3442 Py_TPFLAGS_BASETYPE, /* tp_flags */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3443 accumulate_doc, /* tp_doc */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3444 (traverseproc)accumulate_traverse, /* tp_traverse */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3445 0, /* tp_clear */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3446 0, /* tp_richcompare */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3447 0, /* tp_weaklistoffset */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3448 PyObject_SelfIter, /* tp_iter */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3449 (iternextfunc)accumulate_next, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3450 accumulate_methods, /* tp_methods */
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3451 0, /* tp_members */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3452 0, /* tp_getset */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3453 0, /* tp_base */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3454 0, /* tp_dict */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3455 0, /* tp_descr_get */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3456 0, /* tp_descr_set */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3457 0, /* tp_dictoffset */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3458 0, /* tp_init */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3459 0, /* tp_alloc */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3460 accumulate_new, /* tp_new */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3461 PyObject_GC_Del, /* tp_free */
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3462 };
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
3463
45773
832c820e9d14 Merged revisions 61239-61249,61252-61257,61260-61264,61269-61275,61278-61279,61285-61286,61288-61290,61298,61303-61305,61312-61314,61317,61329,61332,61344,61350-61351,61363-61376,61378-61379,61382-61383,61387-61388,61392,61395-61396,61402-61403 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 45738
diff changeset
3464
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3465 /* compress object ************************************************************/
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3466
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3467 /* Equivalent to:
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3468
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3469 def compress(data, selectors):
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3470 "compress('ABCDEF', [1,0,1,0,1,1]) --> A C E F"
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3471 return (d for d, s in zip(data, selectors) if s)
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3472 */
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3473
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3474 typedef struct {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3475 PyObject_HEAD
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3476 PyObject *data;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3477 PyObject *selectors;
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3478 } compressobject;
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3479
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3480 static PyTypeObject compress_type;
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3481
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3482 static PyObject *
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3483 compress_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3484 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3485 PyObject *seq1, *seq2;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3486 PyObject *data=NULL, *selectors=NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3487 compressobject *lz;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3488 static char *kwargs[] = {"data", "selectors", NULL};
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3489
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3490 if (!PyArg_ParseTupleAndKeywords(args, kwds, "OO:compress", kwargs, &seq1, &seq2))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3491 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3492
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3493 data = PyObject_GetIter(seq1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3494 if (data == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3495 goto fail;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3496 selectors = PyObject_GetIter(seq2);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3497 if (selectors == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3498 goto fail;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3499
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3500 /* create compressobject structure */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3501 lz = (compressobject *)type->tp_alloc(type, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3502 if (lz == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3503 goto fail;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3504 lz->data = data;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3505 lz->selectors = selectors;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3506 return (PyObject *)lz;
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3507
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3508 fail:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3509 Py_XDECREF(data);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3510 Py_XDECREF(selectors);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3511 return NULL;
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3512 }
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3513
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3514 static void
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3515 compress_dealloc(compressobject *lz)
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3516 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3517 PyObject_GC_UnTrack(lz);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3518 Py_XDECREF(lz->data);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3519 Py_XDECREF(lz->selectors);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3520 Py_TYPE(lz)->tp_free(lz);
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3521 }
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3522
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3523 static int
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3524 compress_traverse(compressobject *lz, visitproc visit, void *arg)
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3525 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3526 Py_VISIT(lz->data);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3527 Py_VISIT(lz->selectors);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3528 return 0;
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3529 }
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3530
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3531 static PyObject *
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3532 compress_next(compressobject *lz)
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3533 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3534 PyObject *data = lz->data, *selectors = lz->selectors;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3535 PyObject *datum, *selector;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3536 PyObject *(*datanext)(PyObject *) = *Py_TYPE(data)->tp_iternext;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3537 PyObject *(*selectornext)(PyObject *) = *Py_TYPE(selectors)->tp_iternext;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3538 int ok;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3539
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3540 while (1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3541 /* Steps: get datum, get selector, evaluate selector.
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3542 Order is important (to match the pure python version
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3543 in terms of which input gets a chance to raise an
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3544 exception first).
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3545 */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3546
83166
7b75f0bd9a5e Revert a premature patch for issue #14010 (changeset aaaf36026511).
Serhiy Storchaka <storchaka@gmail.com>
parents: 83153
diff changeset
3547 datum = datanext(data);
7b75f0bd9a5e Revert a premature patch for issue #14010 (changeset aaaf36026511).
Serhiy Storchaka <storchaka@gmail.com>
parents: 83153
diff changeset
3548 if (datum == NULL)
83153
aaaf36026511 Issue #14010: Fix a crash when iterating or deleting deeply nested filters
Serhiy Storchaka <storchaka@gmail.com>
parents: 81705
diff changeset
3549 return NULL;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3550
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3551 selector = selectornext(selectors);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3552 if (selector == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3553 Py_DECREF(datum);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3554 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3555 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3556
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3557 ok = PyObject_IsTrue(selector);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3558 Py_DECREF(selector);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3559 if (ok == 1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3560 return datum;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3561 Py_DECREF(datum);
78605
b878df1d23b1 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Antoine Pitrou <solipsis@pitrou.net>
parents: 76946 78604
diff changeset
3562 if (ok < 0)
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3563 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3564 }
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3565 }
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3566
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3567 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3568 compress_reduce(compressobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3569 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3570 return Py_BuildValue("O(OO)", Py_TYPE(lz),
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3571 lz->data, lz->selectors);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3572 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3573
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3574 static PyMethodDef compress_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3575 {"__reduce__", (PyCFunction)compress_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3576 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3577 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3578 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3579
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3580 PyDoc_STRVAR(compress_doc,
51717
e260d6daf784 Add keyword arg support to itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 51666
diff changeset
3581 "compress(data, selectors) --> iterator over selected data\n\
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3582 \n\
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3583 Return data elements corresponding to true selector elements.\n\
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3584 Forms a shorter iterator from selected data elements using the\n\
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3585 selectors to choose the data elements.");
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3586
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3587 static PyTypeObject compress_type = {
61466
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parents: 57525
diff changeset
3588 PyVarObject_HEAD_INIT(NULL, 0)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3589 "itertools.compress", /* tp_name */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3590 sizeof(compressobject), /* tp_basicsize */
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parents: 57525
diff changeset
3591 0, /* tp_itemsize */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3592 /* methods */
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parents: 57525
diff changeset
3593 (destructor)compress_dealloc, /* tp_dealloc */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3594 0, /* tp_print */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3595 0, /* tp_getattr */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3596 0, /* tp_setattr */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3597 0, /* tp_reserved */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3598 0, /* tp_repr */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3599 0, /* tp_as_number */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3600 0, /* tp_as_sequence */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3601 0, /* tp_as_mapping */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3602 0, /* tp_hash */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3603 0, /* tp_call */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3604 0, /* tp_str */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3605 PyObject_GenericGetAttr, /* tp_getattro */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3606 0, /* tp_setattro */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3607 0, /* tp_as_buffer */
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parents: 57525
diff changeset
3608 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3609 Py_TPFLAGS_BASETYPE, /* tp_flags */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3610 compress_doc, /* tp_doc */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3611 (traverseproc)compress_traverse, /* tp_traverse */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3612 0, /* tp_clear */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3613 0, /* tp_richcompare */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3614 0, /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3615 PyObject_SelfIter, /* tp_iter */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3616 (iternextfunc)compress_next, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3617 compress_methods, /* tp_methods */
61466
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parents: 57525
diff changeset
3618 0, /* tp_members */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3619 0, /* tp_getset */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3620 0, /* tp_base */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3621 0, /* tp_dict */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3622 0, /* tp_descr_get */
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parents: 57525
diff changeset
3623 0, /* tp_descr_set */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3624 0, /* tp_dictoffset */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3625 0, /* tp_init */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3626 0, /* tp_alloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3627 compress_new, /* tp_new */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3628 PyObject_GC_Del, /* tp_free */
51063
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3629 };
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3630
ad1db0ae98c6 Forward port r68941 adding itertools.compress().
Raymond Hettinger <python@rcn.com>
parents: 50755
diff changeset
3631
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3632 /* filterfalse object ************************************************************/
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3633
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3634 typedef struct {
61466
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parents: 57525
diff changeset
3635 PyObject_HEAD
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parents: 57525
diff changeset
3636 PyObject *func;
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parents: 57525
diff changeset
3637 PyObject *it;
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3638 } filterfalseobject;
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3639
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3640 static PyTypeObject filterfalse_type;
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3641
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3642 static PyObject *
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3643 filterfalse_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3644 {
61466
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parents: 57525
diff changeset
3645 PyObject *func, *seq;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3646 PyObject *it;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3647 filterfalseobject *lz;
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parents: 57525
diff changeset
3648
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
3649 if (type == &filterfalse_type &&
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3650 !_PyArg_NoKeywords("filterfalse()", kwds))
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parents: 57525
diff changeset
3651 return NULL;
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parents: 57525
diff changeset
3652
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parents: 57525
diff changeset
3653 if (!PyArg_UnpackTuple(args, "filterfalse", 2, 2, &func, &seq))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3654 return NULL;
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parents: 57525
diff changeset
3655
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parents: 57525
diff changeset
3656 /* Get iterator. */
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parents: 57525
diff changeset
3657 it = PyObject_GetIter(seq);
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parents: 57525
diff changeset
3658 if (it == NULL)
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parents: 57525
diff changeset
3659 return NULL;
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parents: 57525
diff changeset
3660
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parents: 57525
diff changeset
3661 /* create filterfalseobject structure */
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parents: 57525
diff changeset
3662 lz = (filterfalseobject *)type->tp_alloc(type, 0);
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parents: 57525
diff changeset
3663 if (lz == NULL) {
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parents: 57525
diff changeset
3664 Py_DECREF(it);
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parents: 57525
diff changeset
3665 return NULL;
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parents: 57525
diff changeset
3666 }
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parents: 57525
diff changeset
3667 Py_INCREF(func);
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parents: 57525
diff changeset
3668 lz->func = func;
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parents: 57525
diff changeset
3669 lz->it = it;
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diff changeset
3670
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diff changeset
3671 return (PyObject *)lz;
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3672 }
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3673
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3674 static void
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3675 filterfalse_dealloc(filterfalseobject *lz)
27769
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Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3676 {
61466
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diff changeset
3677 PyObject_GC_UnTrack(lz);
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parents: 57525
diff changeset
3678 Py_XDECREF(lz->func);
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parents: 57525
diff changeset
3679 Py_XDECREF(lz->it);
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diff changeset
3680 Py_TYPE(lz)->tp_free(lz);
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3681 }
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3682
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3683 static int
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3684 filterfalse_traverse(filterfalseobject *lz, visitproc visit, void *arg)
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3685 {
61466
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diff changeset
3686 Py_VISIT(lz->it);
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diff changeset
3687 Py_VISIT(lz->func);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3688 return 0;
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3689 }
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3690
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3691 static PyObject *
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3692 filterfalse_next(filterfalseobject *lz)
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3693 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3694 PyObject *item;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3695 PyObject *it = lz->it;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3696 long ok;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3697 PyObject *(*iternext)(PyObject *);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3698
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3699 iternext = *Py_TYPE(it)->tp_iternext;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3700 for (;;) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3701 item = iternext(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3702 if (item == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3703 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3704
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3705 if (lz->func == Py_None || lz->func == (PyObject *)&PyBool_Type) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3706 ok = PyObject_IsTrue(item);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3707 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3708 PyObject *good;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3709 good = PyObject_CallFunctionObjArgs(lz->func,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3710 item, NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3711 if (good == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3712 Py_DECREF(item);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3713 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3714 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3715 ok = PyObject_IsTrue(good);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3716 Py_DECREF(good);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3717 }
78604
56dc7b09f390 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72459
diff changeset
3718 if (ok == 0)
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3719 return item;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3720 Py_DECREF(item);
78604
56dc7b09f390 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72459
diff changeset
3721 if (ok < 0)
56dc7b09f390 Issue #15604: Update uses of PyObject_IsTrue() to check for and handle errors correctly.
Antoine Pitrou <solipsis@pitrou.net>
parents: 72459
diff changeset
3722 return NULL;
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3723 }
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3724 }
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3725
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3726 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3727 filterfalse_reduce(filterfalseobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3728 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3729 return Py_BuildValue("O(OO)", Py_TYPE(lz),
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3730 lz->func, lz->it);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3731 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3732
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3733 static PyMethodDef filterfalse_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3734 {"__reduce__", (PyCFunction)filterfalse_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3735 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3736 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3737 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3738
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3739 PyDoc_STRVAR(filterfalse_doc,
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3740 "filterfalse(function or None, sequence) --> filterfalse object\n\
27769
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3741 \n\
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3742 Return those items of sequence for which function(item) is false.\n\
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3743 If function is None, return the items that are false.");
dc5e1d918055 C Code:
Raymond Hettinger <python@rcn.com>
parents: 27748
diff changeset
3744
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
3745 static PyTypeObject filterfalse_type = {
61466
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parents: 57525
diff changeset
3746 PyVarObject_HEAD_INIT(NULL, 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3747 "itertools.filterfalse", /* tp_name */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3748 sizeof(filterfalseobject), /* tp_basicsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3749 0, /* tp_itemsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3750 /* methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3751 (destructor)filterfalse_dealloc, /* tp_dealloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3752 0, /* tp_print */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3753 0, /* tp_getattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3754 0, /* tp_setattr */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3755 0, /* tp_reserved */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3756 0, /* tp_repr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3757 0, /* tp_as_number */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3758 0, /* tp_as_sequence */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3759 0, /* tp_as_mapping */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3760 0, /* tp_hash */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3761 0, /* tp_call */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3762 0, /* tp_str */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3763 PyObject_GenericGetAttr, /* tp_getattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3764 0, /* tp_setattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3765 0, /* tp_as_buffer */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3766 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3767 Py_TPFLAGS_BASETYPE, /* tp_flags */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3768 filterfalse_doc, /* tp_doc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3769 (traverseproc)filterfalse_traverse, /* tp_traverse */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3770 0, /* tp_clear */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3771 0, /* tp_richcompare */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3772 0, /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3773 PyObject_SelfIter, /* tp_iter */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3774 (iternextfunc)filterfalse_next, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3775 filterfalse_methods, /* tp_methods */
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3776 0, /* tp_members */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3777 0, /* tp_getset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3778 0, /* tp_base */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3779 0, /* tp_dict */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3780 0, /* tp_descr_get */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3781 0, /* tp_descr_set */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3782 0, /* tp_dictoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3783 0, /* tp_init */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3784 0, /* tp_alloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3785 filterfalse_new, /* tp_new */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3786 PyObject_GC_Del, /* tp_free */
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3787 };
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3788
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3789
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3790 /* count object ************************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3791
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3792 typedef struct {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3793 PyObject_HEAD
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3794 Py_ssize_t cnt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3795 PyObject *long_cnt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3796 PyObject *long_step;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3797 } countobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3798
51542
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments.
Raymond Hettinger <python@rcn.com>
parents: 51503
diff changeset
3799 /* Counting logic and invariants:
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments.
Raymond Hettinger <python@rcn.com>
parents: 51503
diff changeset
3800
51778
aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored.
Raymond Hettinger <python@rcn.com>
parents: 51719
diff changeset
3801 fast_mode: when cnt an integer < PY_SSIZE_T_MAX and no step is specified.
51542
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments.
Raymond Hettinger <python@rcn.com>
parents: 51503
diff changeset
3802
61466
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parents: 57525
diff changeset
3803 assert(cnt != PY_SSIZE_T_MAX && long_cnt == NULL && long_step==PyInt(1));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3804 Advances with: cnt += 1
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3805 When count hits Y_SSIZE_T_MAX, switch to slow_mode.
51778
aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored.
Raymond Hettinger <python@rcn.com>
parents: 51719
diff changeset
3806
aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored.
Raymond Hettinger <python@rcn.com>
parents: 51719
diff changeset
3807 slow_mode: when cnt == PY_SSIZE_T_MAX, step is not int(1), or cnt is a float.
51542
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments.
Raymond Hettinger <python@rcn.com>
parents: 51503
diff changeset
3808
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3809 assert(cnt == PY_SSIZE_T_MAX && long_cnt != NULL && long_step != NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3810 All counting is done with python objects (no overflows or underflows).
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3811 Advances with: long_cnt += long_step
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3812 Step may be zero -- effectively a slow version of repeat(cnt).
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3813 Either long_cnt or long_step may be a float, Fraction, or Decimal.
51542
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments.
Raymond Hettinger <python@rcn.com>
parents: 51503
diff changeset
3814 */
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments.
Raymond Hettinger <python@rcn.com>
parents: 51503
diff changeset
3815
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
parents: 29535
diff changeset
3816 static PyTypeObject count_type;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3817
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3818 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3819 count_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3820 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3821 countobject *lz;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3822 int slow_mode = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3823 Py_ssize_t cnt = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3824 PyObject *long_cnt = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3825 PyObject *long_step = NULL;
69062
9a6da9bc257d Bugfix: Properly test for errors from PyLong_AsLong() in itertools.cycle.
Kristjan Valur Jonsson <sweskman@gmail.com>
parents: 66546
diff changeset
3826 long step;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3827 static char *kwlist[] = {"start", "step", 0};
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3828
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3829 if (!PyArg_ParseTupleAndKeywords(args, kwds, "|OO:count",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3830 kwlist, &long_cnt, &long_step))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3831 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3832
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3833 if ((long_cnt != NULL && !PyNumber_Check(long_cnt)) ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3834 (long_step != NULL && !PyNumber_Check(long_step))) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3835 PyErr_SetString(PyExc_TypeError, "a number is required");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3836 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3837 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3838
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3839 if (long_cnt != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3840 cnt = PyLong_AsSsize_t(long_cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3841 if ((cnt == -1 && PyErr_Occurred()) || !PyLong_Check(long_cnt)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3842 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3843 slow_mode = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3844 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3845 Py_INCREF(long_cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3846 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3847 cnt = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3848 long_cnt = PyLong_FromLong(0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3849 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3850
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3851 /* If not specified, step defaults to 1 */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3852 if (long_step == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3853 long_step = PyLong_FromLong(1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3854 if (long_step == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3855 Py_DECREF(long_cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3856 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3857 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3858 } else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3859 Py_INCREF(long_step);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3860
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3861 assert(long_cnt != NULL && long_step != NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3862
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3863 /* Fast mode only works when the step is 1 */
69062
9a6da9bc257d Bugfix: Properly test for errors from PyLong_AsLong() in itertools.cycle.
Kristjan Valur Jonsson <sweskman@gmail.com>
parents: 66546
diff changeset
3864 step = PyLong_AsLong(long_step);
9a6da9bc257d Bugfix: Properly test for errors from PyLong_AsLong() in itertools.cycle.
Kristjan Valur Jonsson <sweskman@gmail.com>
parents: 66546
diff changeset
3865 if (step != 1) {
9a6da9bc257d Bugfix: Properly test for errors from PyLong_AsLong() in itertools.cycle.
Kristjan Valur Jonsson <sweskman@gmail.com>
parents: 66546
diff changeset
3866 slow_mode = 1;
9a6da9bc257d Bugfix: Properly test for errors from PyLong_AsLong() in itertools.cycle.
Kristjan Valur Jonsson <sweskman@gmail.com>
parents: 66546
diff changeset
3867 if (step == -1 && PyErr_Occurred())
9a6da9bc257d Bugfix: Properly test for errors from PyLong_AsLong() in itertools.cycle.
Kristjan Valur Jonsson <sweskman@gmail.com>
parents: 66546
diff changeset
3868 PyErr_Clear();
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3869 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3870
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3871 if (slow_mode)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3872 cnt = PY_SSIZE_T_MAX;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3873 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3874 Py_CLEAR(long_cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3875
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3876 assert((cnt != PY_SSIZE_T_MAX && long_cnt == NULL && !slow_mode) ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3877 (cnt == PY_SSIZE_T_MAX && long_cnt != NULL && slow_mode));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3878 assert(slow_mode ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3879 (PyLong_Check(long_step) && PyLong_AS_LONG(long_step) == 1));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3880
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3881 /* create countobject structure */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3882 lz = (countobject *)type->tp_alloc(type, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3883 if (lz == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3884 Py_XDECREF(long_cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3885 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3886 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3887 lz->cnt = cnt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3888 lz->long_cnt = long_cnt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3889 lz->long_step = long_step;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3890
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3891 return (PyObject *)lz;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3892 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3893
43734
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3894 static void
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3895 count_dealloc(countobject *lz)
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3896 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3897 PyObject_GC_UnTrack(lz);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3898 Py_XDECREF(lz->long_cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3899 Py_XDECREF(lz->long_step);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3900 Py_TYPE(lz)->tp_free(lz);
51661
003e00797e91 Add GC support to count() objects.
Raymond Hettinger <python@rcn.com>
parents: 51624
diff changeset
3901 }
003e00797e91 Add GC support to count() objects.
Raymond Hettinger <python@rcn.com>
parents: 51624
diff changeset
3902
51666
f308953c701f Merged revisions 69688,69690 via svnmerge from
Benjamin Peterson <benjamin@python.org>
parents: 51661
diff changeset
3903 static int
51661
003e00797e91 Add GC support to count() objects.
Raymond Hettinger <python@rcn.com>
parents: 51624
diff changeset
3904 count_traverse(countobject *lz, visitproc visit, void *arg)
003e00797e91 Add GC support to count() objects.
Raymond Hettinger <python@rcn.com>
parents: 51624
diff changeset
3905 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3906 Py_VISIT(lz->long_cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3907 Py_VISIT(lz->long_step);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3908 return 0;
43734
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3909 }
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3910
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3911 static PyObject *
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3912 count_nextlong(countobject *lz)
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3913 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3914 PyObject *long_cnt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3915 PyObject *stepped_up;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3916
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3917 long_cnt = lz->long_cnt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3918 if (long_cnt == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3919 /* Switch to slow_mode */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3920 long_cnt = PyLong_FromSsize_t(PY_SSIZE_T_MAX);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3921 if (long_cnt == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3922 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3923 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3924 assert(lz->cnt == PY_SSIZE_T_MAX && long_cnt != NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3925
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3926 stepped_up = PyNumber_Add(long_cnt, lz->long_step);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3927 if (stepped_up == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3928 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3929 lz->long_cnt = stepped_up;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3930 return long_cnt;
43734
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3931 }
3e5edf19d5f0 Merged revisions 58221-58741 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
3932
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3933 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3934 count_next(countobject *lz)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3935 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3936 if (lz->cnt == PY_SSIZE_T_MAX)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3937 return count_nextlong(lz);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3938 return PyLong_FromSsize_t(lz->cnt++);
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3939 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3940
31890
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
3941 static PyObject *
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
3942 count_repr(countobject *lz)
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
3943 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3944 if (lz->cnt != PY_SSIZE_T_MAX)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3945 return PyUnicode_FromFormat("count(%zd)", lz->cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3946
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3947 if (PyLong_Check(lz->long_step)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3948 long step = PyLong_AsLong(lz->long_step);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3949 if (step == -1 && PyErr_Occurred()) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3950 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3951 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3952 if (step == 1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3953 /* Don't display step when it is an integer equal to 1 */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3954 return PyUnicode_FromFormat("count(%R)", lz->long_cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3955 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3956 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3957 return PyUnicode_FromFormat("count(%R, %R)",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3958 lz->long_cnt, lz->long_step);
31890
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
3959 }
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
3960
57525
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count.
Raymond Hettinger <python@rcn.com>
parents: 57344
diff changeset
3961 static PyObject *
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count.
Raymond Hettinger <python@rcn.com>
parents: 57344
diff changeset
3962 count_reduce(countobject *lz)
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count.
Raymond Hettinger <python@rcn.com>
parents: 57344
diff changeset
3963 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3964 if (lz->cnt == PY_SSIZE_T_MAX)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3965 return Py_BuildValue("O(OO)", Py_TYPE(lz), lz->long_cnt, lz->long_step);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3966 return Py_BuildValue("O(n)", Py_TYPE(lz), lz->cnt);
57525
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count.
Raymond Hettinger <python@rcn.com>
parents: 57344
diff changeset
3967 }
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count.
Raymond Hettinger <python@rcn.com>
parents: 57344
diff changeset
3968
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count.
Raymond Hettinger <python@rcn.com>
parents: 57344
diff changeset
3969 static PyMethodDef count_methods[] = {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3970 {"__reduce__", (PyCFunction)count_reduce, METH_NOARGS,
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
3971 reduce_doc},
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3972 {NULL, NULL} /* sentinel */
57525
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count.
Raymond Hettinger <python@rcn.com>
parents: 57344
diff changeset
3973 };
0a6137944e61 Issue #7410: deepcopy of itertools.count was resetting the count.
Raymond Hettinger <python@rcn.com>
parents: 57344
diff changeset
3974
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3975 PyDoc_STRVAR(count_doc,
62239
8319ca0d5434 Merged revisions 81889 via svnmerge from
Ezio Melotti <ezio.melotti@gmail.com>
parents: 61466
diff changeset
3976 "count(start=0, step=1) --> count object\n\
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3977 \n\
51778
aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored.
Raymond Hettinger <python@rcn.com>
parents: 51719
diff changeset
3978 Return a count object whose .__next__() method returns consecutive values.\n\
aa29d0967105 Port r69837: Fix keyword arguments for itertools.count(). Step arg without a start arg was ignored.
Raymond Hettinger <python@rcn.com>
parents: 51719
diff changeset
3979 Equivalent to:\n\n\
51542
b0db109089c9 Issue 5032: added a step argument to itertools.count() and allowed non-integer arguments.
Raymond Hettinger <python@rcn.com>
parents: 51503
diff changeset
3980 def count(firstval=0, step=1):\n\
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3981 x = firstval\n\
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3982 while 1:\n\
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3983 yield x\n\
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3984 x += step\n");
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
3985
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
parents: 29535
diff changeset
3986 static PyTypeObject count_type = {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3987 PyVarObject_HEAD_INIT(NULL, 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3988 "itertools.count", /* tp_name */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3989 sizeof(countobject), /* tp_basicsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3990 0, /* tp_itemsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3991 /* methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3992 (destructor)count_dealloc, /* tp_dealloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3993 0, /* tp_print */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3994 0, /* tp_getattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3995 0, /* tp_setattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3996 0, /* tp_reserved */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3997 (reprfunc)count_repr, /* tp_repr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3998 0, /* tp_as_number */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
3999 0, /* tp_as_sequence */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4000 0, /* tp_as_mapping */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4001 0, /* tp_hash */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4002 0, /* tp_call */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4003 0, /* tp_str */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4004 PyObject_GenericGetAttr, /* tp_getattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4005 0, /* tp_setattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4006 0, /* tp_as_buffer */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4007 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4008 Py_TPFLAGS_BASETYPE, /* tp_flags */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4009 count_doc, /* tp_doc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4010 (traverseproc)count_traverse, /* tp_traverse */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4011 0, /* tp_clear */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4012 0, /* tp_richcompare */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4013 0, /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4014 PyObject_SelfIter, /* tp_iter */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4015 (iternextfunc)count_next, /* tp_iternext */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4016 count_methods, /* tp_methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4017 0, /* tp_members */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4018 0, /* tp_getset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4019 0, /* tp_base */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4020 0, /* tp_dict */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4021 0, /* tp_descr_get */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4022 0, /* tp_descr_set */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4023 0, /* tp_dictoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4024 0, /* tp_init */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4025 0, /* tp_alloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4026 count_new, /* tp_new */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4027 PyObject_GC_Del, /* tp_free */
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4028 };
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4029
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4030
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4031 /* repeat object ************************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4032
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4033 typedef struct {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4034 PyObject_HEAD
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4035 PyObject *element;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4036 Py_ssize_t cnt;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4037 } repeatobject;
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4038
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
parents: 29535
diff changeset
4039 static PyTypeObject repeat_type;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4040
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4041 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4042 repeat_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4043 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4044 repeatobject *ro;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4045 PyObject *element;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4046 Py_ssize_t cnt = -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4047 static char *kwargs[] = {"object", "times", NULL};
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4048
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4049 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O|n:repeat", kwargs,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4050 &element, &cnt))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4051 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4052
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4053 if (PyTuple_Size(args) == 2 && cnt < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4054 cnt = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4055
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4056 ro = (repeatobject *)type->tp_alloc(type, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4057 if (ro == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4058 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4059 Py_INCREF(element);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4060 ro->element = element;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4061 ro->cnt = cnt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4062 return (PyObject *)ro;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4063 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4064
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4065 static void
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4066 repeat_dealloc(repeatobject *ro)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4067 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4068 PyObject_GC_UnTrack(ro);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4069 Py_XDECREF(ro->element);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
4070 Py_TYPE(ro)->tp_free(ro);
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4071 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4072
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4073 static int
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4074 repeat_traverse(repeatobject *ro, visitproc visit, void *arg)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4075 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4076 Py_VISIT(ro->element);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4077 return 0;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4078 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4079
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4080 static PyObject *
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4081 repeat_next(repeatobject *ro)
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4082 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4083 if (ro->cnt == 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4084 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4085 if (ro->cnt > 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4086 ro->cnt--;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4087 Py_INCREF(ro->element);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4088 return ro->element;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4089 }
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4090
31890
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
4091 static PyObject *
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
4092 repeat_repr(repeatobject *ro)
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
4093 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4094 if (ro->cnt == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4095 return PyUnicode_FromFormat("repeat(%R)", ro->element);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4096 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4097 return PyUnicode_FromFormat("repeat(%R, %zd)", ro->element, ro->cnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4098 }
31890
848bce2215d3 Provide more information representations of repeat() and count().
Raymond Hettinger <python@rcn.com>
parents: 31675
diff changeset
4099
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 35449
diff changeset
4100 static PyObject *
31501
14f860b03be2 Give itertools.repeat() a length method.
Raymond Hettinger <python@rcn.com>
parents: 31136
diff changeset
4101 repeat_len(repeatobject *ro)
14f860b03be2 Give itertools.repeat() a length method.
Raymond Hettinger <python@rcn.com>
parents: 31136
diff changeset
4102 {
61466
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parents: 57525
diff changeset
4103 if (ro->cnt == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4104 PyErr_SetString(PyExc_TypeError, "len() of unsized object");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4105 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
4106 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4107 return PyLong_FromSize_t(ro->cnt);
31501
14f860b03be2 Give itertools.repeat() a length method.
Raymond Hettinger <python@rcn.com>
parents: 31136
diff changeset
4108 }
14f860b03be2 Give itertools.repeat() a length method.
Raymond Hettinger <python@rcn.com>
parents: 31136
diff changeset
4109
36484
20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See:
Armin Rigo <arigo@tunes.org>
parents: 36324
diff changeset
4110 PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 35449
diff changeset
4111
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4112 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4113 repeat_reduce(repeatobject *ro)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4114 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4115 /* unpickle this so that a new repeat iterator is constructed with an
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4116 * object, then call __setstate__ on it to set cnt
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4117 */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4118 if (ro->cnt >= 0)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4119 return Py_BuildValue("O(On)", Py_TYPE(ro), ro->element, ro->cnt);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4120 else
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4121 return Py_BuildValue("O(O)", Py_TYPE(ro), ro->element);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4122 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4123
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
parents: 35449
diff changeset
4124 static PyMethodDef repeat_methods[] = {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4125 {"__length_hint__", (PyCFunction)repeat_len, METH_NOARGS, length_hint_doc},
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4126 {"__reduce__", (PyCFunction)repeat_reduce, METH_NOARGS, reduce_doc},
61466
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parents: 57525
diff changeset
4127 {NULL, NULL} /* sentinel */
31501
14f860b03be2 Give itertools.repeat() a length method.
Raymond Hettinger <python@rcn.com>
parents: 31136
diff changeset
4128 };
14f860b03be2 Give itertools.repeat() a length method.
Raymond Hettinger <python@rcn.com>
parents: 31136
diff changeset
4129
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4130 PyDoc_STRVAR(repeat_doc,
51719
3dbdbc5e6d85 Add keyword arg support to itertools.repeat().
Raymond Hettinger <python@rcn.com>
parents: 51717
diff changeset
4131 "repeat(object [,times]) -> create an iterator which returns the object\n\
3dbdbc5e6d85 Add keyword arg support to itertools.repeat().
Raymond Hettinger <python@rcn.com>
parents: 51717
diff changeset
4132 for the specified number of times. If not specified, returns the object\n\
28024
61fa6b55c1de User requested changes to the itertools module.
Raymond Hettinger <python@rcn.com>
parents: 27770
diff changeset
4133 endlessly.");
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4134
29850
45dc33433323 SF patch #770521: make itertools type declarations static
Raymond Hettinger <python@rcn.com>
parents: 29535
diff changeset
4135 static PyTypeObject repeat_type = {
61466
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parents: 57525
diff changeset
4136 PyVarObject_HEAD_INIT(NULL, 0)
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parents: 57525
diff changeset
4137 "itertools.repeat", /* tp_name */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4138 sizeof(repeatobject), /* tp_basicsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4139 0, /* tp_itemsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4140 /* methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4141 (destructor)repeat_dealloc, /* tp_dealloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4142 0, /* tp_print */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4143 0, /* tp_getattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4144 0, /* tp_setattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4145 0, /* tp_reserved */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4146 (reprfunc)repeat_repr, /* tp_repr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4147 0, /* tp_as_number */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4148 0, /* tp_as_sequence */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4149 0, /* tp_as_mapping */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4150 0, /* tp_hash */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4151 0, /* tp_call */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4152 0, /* tp_str */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4153 PyObject_GenericGetAttr, /* tp_getattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4154 0, /* tp_setattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4155 0, /* tp_as_buffer */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4156 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4157 Py_TPFLAGS_BASETYPE, /* tp_flags */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4158 repeat_doc, /* tp_doc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4159 (traverseproc)repeat_traverse, /* tp_traverse */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4160 0, /* tp_clear */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4161 0, /* tp_richcompare */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4162 0, /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4163 PyObject_SelfIter, /* tp_iter */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4164 (iternextfunc)repeat_next, /* tp_iternext */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4165 repeat_methods, /* tp_methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4166 0, /* tp_members */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4167 0, /* tp_getset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4168 0, /* tp_base */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4169 0, /* tp_dict */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4170 0, /* tp_descr_get */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4171 0, /* tp_descr_set */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4172 0, /* tp_dictoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4173 0, /* tp_init */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4174 0, /* tp_alloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4175 repeat_new, /* tp_new */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4176 PyObject_GC_Del, /* tp_free */
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4177 };
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4178
45738
740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming.
Raymond Hettinger <python@rcn.com>
parents: 45736
diff changeset
4179 /* ziplongest object ************************************************************/
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4180
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4181 #include "Python.h"
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4182
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4183 typedef struct {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4184 PyObject_HEAD
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
4185 Py_ssize_t tuplesize;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4186 Py_ssize_t numactive;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4187 PyObject *ittuple; /* tuple of iterators */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4188 PyObject *result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
4189 PyObject *fillvalue;
45738
740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming.
Raymond Hettinger <python@rcn.com>
parents: 45736
diff changeset
4190 } ziplongestobject;
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4191
45738
740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming.
Raymond Hettinger <python@rcn.com>
parents: 45736
diff changeset
4192 static PyTypeObject ziplongest_type;
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4193
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4194 static PyObject *
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
4195 zip_longest_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4196 {
61466
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diff changeset
4197 ziplongestobject *lz;
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parents: 57525
diff changeset
4198 Py_ssize_t i;
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parents: 57525
diff changeset
4199 PyObject *ittuple; /* tuple of iterators */
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parents: 57525
diff changeset
4200 PyObject *result;
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parents: 57525
diff changeset
4201 PyObject *fillvalue = Py_None;
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parents: 57525
diff changeset
4202 Py_ssize_t tuplesize = PySequence_Length(args);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4203
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4204 if (kwds != NULL && PyDict_CheckExact(kwds) && PyDict_Size(kwds) > 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4205 fillvalue = PyDict_GetItemString(kwds, "fillvalue");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4206 if (fillvalue == NULL || PyDict_Size(kwds) > 1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4207 PyErr_SetString(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4208 "zip_longest() got an unexpected keyword argument");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4209 return NULL;
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4210 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4211 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4212
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4213 /* args must be a tuple */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4214 assert(PyTuple_Check(args));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4215
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4216 /* obtain iterators */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4217 ittuple = PyTuple_New(tuplesize);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4218 if (ittuple == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4219 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4220 for (i=0; i < tuplesize; ++i) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4221 PyObject *item = PyTuple_GET_ITEM(args, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4222 PyObject *it = PyObject_GetIter(item);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4223 if (it == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4224 if (PyErr_ExceptionMatches(PyExc_TypeError))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4225 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4226 "zip_longest argument #%zd must support iteration",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4227 i+1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4228 Py_DECREF(ittuple);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4229 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4230 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4231 PyTuple_SET_ITEM(ittuple, i, it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4232 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4233
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4234 /* create a result holder */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4235 result = PyTuple_New(tuplesize);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4236 if (result == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4237 Py_DECREF(ittuple);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4238 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4239 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4240 for (i=0 ; i < tuplesize ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4241 Py_INCREF(Py_None);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4242 PyTuple_SET_ITEM(result, i, Py_None);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4243 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4244
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4245 /* create ziplongestobject structure */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4246 lz = (ziplongestobject *)type->tp_alloc(type, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4247 if (lz == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4248 Py_DECREF(ittuple);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4249 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4250 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4251 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4252 lz->ittuple = ittuple;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4253 lz->tuplesize = tuplesize;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4254 lz->numactive = tuplesize;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4255 lz->result = result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4256 Py_INCREF(fillvalue);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4257 lz->fillvalue = fillvalue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4258 return (PyObject *)lz;
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4259 }
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4260
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4261 static void
45738
740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming.
Raymond Hettinger <python@rcn.com>
parents: 45736
diff changeset
4262 zip_longest_dealloc(ziplongestobject *lz)
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4263 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4264 PyObject_GC_UnTrack(lz);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4265 Py_XDECREF(lz->ittuple);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4266 Py_XDECREF(lz->result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4267 Py_XDECREF(lz->fillvalue);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4268 Py_TYPE(lz)->tp_free(lz);
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4269 }
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4270
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4271 static int
45738
740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming.
Raymond Hettinger <python@rcn.com>
parents: 45736
diff changeset
4272 zip_longest_traverse(ziplongestobject *lz, visitproc visit, void *arg)
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4273 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4274 Py_VISIT(lz->ittuple);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4275 Py_VISIT(lz->result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4276 Py_VISIT(lz->fillvalue);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4277 return 0;
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4278 }
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4279
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4280 static PyObject *
45738
740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming.
Raymond Hettinger <python@rcn.com>
parents: 45736
diff changeset
4281 zip_longest_next(ziplongestobject *lz)
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4282 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4283 Py_ssize_t i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4284 Py_ssize_t tuplesize = lz->tuplesize;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4285 PyObject *result = lz->result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4286 PyObject *it;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4287 PyObject *item;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4288 PyObject *olditem;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4289
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4290 if (tuplesize == 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4291 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4292 if (lz->numactive == 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4293 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4294 if (Py_REFCNT(result) == 1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4295 Py_INCREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4296 for (i=0 ; i < tuplesize ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4297 it = PyTuple_GET_ITEM(lz->ittuple, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4298 if (it == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4299 Py_INCREF(lz->fillvalue);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4300 item = lz->fillvalue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4301 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4302 item = PyIter_Next(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4303 if (item == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4304 lz->numactive -= 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4305 if (lz->numactive == 0 || PyErr_Occurred()) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4306 lz->numactive = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4307 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4308 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4309 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4310 Py_INCREF(lz->fillvalue);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4311 item = lz->fillvalue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4312 PyTuple_SET_ITEM(lz->ittuple, i, NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4313 Py_DECREF(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4314 }
57042
658eb58d2e68 Fix exception handling in itertools.izip_longest().
Raymond Hettinger <python@rcn.com>
parents: 54839
diff changeset
4315 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 57525
diff changeset
4316 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4317 olditem = PyTuple_GET_ITEM(result, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4318 PyTuple_SET_ITEM(result, i, item);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4319 Py_DECREF(olditem);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4320 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4321 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4322 result = PyTuple_New(tuplesize);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4323 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4324 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4325 for (i=0 ; i < tuplesize ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4326 it = PyTuple_GET_ITEM(lz->ittuple, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4327 if (it == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4328 Py_INCREF(lz->fillvalue);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4329 item = lz->fillvalue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4330 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4331 item = PyIter_Next(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4332 if (item == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4333 lz->numactive -= 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4334 if (lz->numactive == 0 || PyErr_Occurred()) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4335 lz->numactive = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4336 Py_DECREF(result);
57042
658eb58d2e68 Fix exception handling in itertools.izip_longest().
Raymond Hettinger <python@rcn.com>
parents: 54839
diff changeset
4337 return NULL;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4338 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4339 Py_INCREF(lz->fillvalue);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4340 item = lz->fillvalue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4341 PyTuple_SET_ITEM(lz->ittuple, i, NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4342 Py_DECREF(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4343 }
57042
658eb58d2e68 Fix exception handling in itertools.izip_longest().
Raymond Hettinger <python@rcn.com>
parents: 54839
diff changeset
4344 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4345 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4346 PyTuple_SET_ITEM(result, i, item);
57042
658eb58d2e68 Fix exception handling in itertools.izip_longest().
Raymond Hettinger <python@rcn.com>
parents: 54839
diff changeset
4347 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4348 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4349 return result;
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4350 }
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4351
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4352 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4353 zip_longest_reduce(ziplongestobject *lz)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4354 {
81705
20c4d55f4b69 Clean trailing whitespace in itertoolsmodule.c.
Serhiy Storchaka <storchaka@gmail.com>
parents: 81701 81704
diff changeset
4355
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4356 /* Create a new tuple with empty sequences where appropriate to pickle.
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4357 * Then use setstate to set the fillvalue
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4358 */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4359 int i;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4360 PyObject *args = PyTuple_New(PyTuple_GET_SIZE(lz->ittuple));
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4361 if (args == NULL)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4362 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4363 for (i=0; i<PyTuple_GET_SIZE(lz->ittuple); i++) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4364 PyObject *elem = PyTuple_GET_ITEM(lz->ittuple, i);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4365 if (elem == NULL) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4366 elem = PyTuple_New(0);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4367 if (elem == NULL) {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4368 Py_DECREF(args);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4369 return NULL;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4370 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4371 } else
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4372 Py_INCREF(elem);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4373 PyTuple_SET_ITEM(args, i, elem);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4374 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4375 return Py_BuildValue("ONO", Py_TYPE(lz), args, lz->fillvalue);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4376 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4377
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4378 static PyObject *
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4379 zip_longest_setstate(ziplongestobject *lz, PyObject *state)
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4380 {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4381 Py_CLEAR(lz->fillvalue);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4382 lz->fillvalue = state;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4383 Py_INCREF(lz->fillvalue);
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4384 Py_RETURN_NONE;
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4385 }
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4386
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4387 static PyMethodDef zip_longest_methods[] = {
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4388 {"__reduce__", (PyCFunction)zip_longest_reduce, METH_NOARGS,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4389 reduce_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4390 {"__setstate__", (PyCFunction)zip_longest_setstate, METH_O,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4391 setstate_doc},
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4392 {NULL, NULL} /* sentinel */
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4393 };
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4394
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
4395 PyDoc_STRVAR(zip_longest_doc,
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
4396 "zip_longest(iter1 [,iter2 [...]], [fillvalue=None]) --> zip_longest object\n\
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4397 \n\
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
4398 Return an zip_longest object whose .__next__() method returns a tuple where\n\
41501
0c5019afc55b PEP 3114: rename .next() to .__next__() and add next() builtin.
Georg Brandl <georg@python.org>
parents: 40893
diff changeset
4399 the i-th element comes from the i-th iterable argument. The .__next__()\n\
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4400 method continues until the longest iterable in the argument sequence\n\
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4401 is exhausted and then it raises StopIteration. When the shorter iterables\n\
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4402 are exhausted, the fillvalue is substituted in their place. The fillvalue\n\
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4403 defaults to None or can be specified by a keyword argument.\n\
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4404 ");
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4405
45738
740b5808c57a Move itertools izip() code to builtins as zip(). Complete the renaming.
Raymond Hettinger <python@rcn.com>
parents: 45736
diff changeset
4406 static PyTypeObject ziplongest_type = {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4407 PyVarObject_HEAD_INIT(NULL, 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4408 "itertools.zip_longest", /* tp_name */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4409 sizeof(ziplongestobject), /* tp_basicsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4410 0, /* tp_itemsize */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4411 /* methods */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4412 (destructor)zip_longest_dealloc, /* tp_dealloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4413 0, /* tp_print */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4414 0, /* tp_getattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4415 0, /* tp_setattr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4416 0, /* tp_reserved */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4417 0, /* tp_repr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4418 0, /* tp_as_number */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4419 0, /* tp_as_sequence */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4420 0, /* tp_as_mapping */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4421 0, /* tp_hash */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4422 0, /* tp_call */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4423 0, /* tp_str */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4424 PyObject_GenericGetAttr, /* tp_getattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4425 0, /* tp_setattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4426 0, /* tp_as_buffer */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4427 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4428 Py_TPFLAGS_BASETYPE, /* tp_flags */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4429 zip_longest_doc, /* tp_doc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4430 (traverseproc)zip_longest_traverse, /* tp_traverse */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4431 0, /* tp_clear */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4432 0, /* tp_richcompare */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4433 0, /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4434 PyObject_SelfIter, /* tp_iter */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4435 (iternextfunc)zip_longest_next, /* tp_iternext */
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4436 zip_longest_methods, /* tp_methods */
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4437 0, /* tp_members */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4438 0, /* tp_getset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4439 0, /* tp_base */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4440 0, /* tp_dict */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4441 0, /* tp_descr_get */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4442 0, /* tp_descr_set */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4443 0, /* tp_dictoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4444 0, /* tp_init */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4445 0, /* tp_alloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4446 zip_longest_new, /* tp_new */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4447 PyObject_GC_Del, /* tp_free */
40893
32c4897b5d46 Merged revisions 53623-53858 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40737
diff changeset
4448 };
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4449
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4450 /* module level code ********************************************************/
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4451
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4452 PyDoc_STRVAR(module_doc,
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4453 "Functional tools for creating and using iterators.\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4454 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4455 Infinite iterators:\n\
84236
ad0b44cdae41 Closes #18239: correct description of count() in module docstring
Andrew Kuchling <amk@amk.ca>
parents: 83166
diff changeset
4456 count(start=0, step=1) --> start, start+step, start+2*step, ...\n\
28024
61fa6b55c1de User requested changes to the itertools module.
Raymond Hettinger <python@rcn.com>
parents: 27770
diff changeset
4457 cycle(p) --> p0, p1, ... plast, p0, p1, ...\n\
28601
58db5fbd9c28 Fix docstring typo
Andrew M. Kuchling <amk@amk.ca>
parents: 28320
diff changeset
4458 repeat(elem [,n]) --> elem, elem, elem, ... endlessly or up to n times\n\
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4459 \n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4460 Iterators terminating on the shortest input sequence:\n\
69022
822c7c0d27d1 Update docstrings for itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 69021
diff changeset
4461 accumulate(p[, func]) --> p0, p0+p1, p0+p1+p2\n\
51163
4f607c3ae8e2 Update itertools.__doc__ to include all tools.
Raymond Hettinger <python@rcn.com>
parents: 51100
diff changeset
4462 chain(p, q, ...) --> p0, p1, ... plast, q0, q1, ... \n\
4f607c3ae8e2 Update itertools.__doc__ to include all tools.
Raymond Hettinger <python@rcn.com>
parents: 51100
diff changeset
4463 compress(data, selectors) --> (d[0] if s[0]), (d[1] if s[1]), ...\n\
4f607c3ae8e2 Update itertools.__doc__ to include all tools.
Raymond Hettinger <python@rcn.com>
parents: 51100
diff changeset
4464 dropwhile(pred, seq) --> seq[n], seq[n+1], starting when pred fails\n\
4f607c3ae8e2 Update itertools.__doc__ to include all tools.
Raymond Hettinger <python@rcn.com>
parents: 51100
diff changeset
4465 groupby(iterable[, keyfunc]) --> sub-iterators grouped by value of keyfunc(v)\n\
45736
7752a57f9c49 Rename ifilterfalse() to filterfalse() and izip_longest() to zip_longest().
Raymond Hettinger <python@rcn.com>
parents: 45735
diff changeset
4466 filterfalse(pred, seq) --> elements of seq where pred(elem) is False\n\
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4467 islice(seq, [start,] stop [, step]) --> elements from\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4468 seq[start:stop:step]\n\
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4469 starmap(fun, seq) --> fun(*seq[0]), fun(*seq[1]), ...\n\
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
4470 tee(it, n=2) --> (it1, it2 , ... itn) splits one iterator into n\n\
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4471 takewhile(pred, seq) --> seq[0], seq[1], until pred fails\n\
51163
4f607c3ae8e2 Update itertools.__doc__ to include all tools.
Raymond Hettinger <python@rcn.com>
parents: 51100
diff changeset
4472 zip_longest(p, q, ...) --> (p[0], q[0]), (p[1], q[1]), ... \n\
51165
4b8976ea6966 Fix typo.
Raymond Hettinger <python@rcn.com>
parents: 51163
diff changeset
4473 \n\
4b8976ea6966 Fix typo.
Raymond Hettinger <python@rcn.com>
parents: 51163
diff changeset
4474 Combinatoric generators:\n\
4b8976ea6966 Fix typo.
Raymond Hettinger <python@rcn.com>
parents: 51163
diff changeset
4475 product(p, q, ... [repeat=1]) --> cartesian product\n\
4b8976ea6966 Fix typo.
Raymond Hettinger <python@rcn.com>
parents: 51163
diff changeset
4476 permutations(p[, r])\n\
57344
a790f84fbafa Fix docstrings for itertools combinatoric functions.
Raymond Hettinger <python@rcn.com>
parents: 57042
diff changeset
4477 combinations(p, r)\n\
a790f84fbafa Fix docstrings for itertools combinatoric functions.
Raymond Hettinger <python@rcn.com>
parents: 57042
diff changeset
4478 combinations_with_replacement(p, r)\n\
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4479 ");
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4480
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4481
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
4482 static PyMethodDef module_methods[] = {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4483 {"tee", (PyCFunction)tee, METH_VARARGS, tee_doc},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4484 {NULL, NULL} /* sentinel */
30900
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
4485 };
3096fab2a19c Improve the implementation of itertools.tee().
Raymond Hettinger <python@rcn.com>
parents: 30800
diff changeset
4486
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47555
diff changeset
4487
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47555
diff changeset
4488 static struct PyModuleDef itertoolsmodule = {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4489 PyModuleDef_HEAD_INIT,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4490 "itertools",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4491 module_doc,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4492 -1,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4493 module_methods,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4494 NULL,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4495 NULL,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4496 NULL,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4497 NULL
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47555
diff changeset
4498 };
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47555
diff changeset
4499
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4500 PyMODINIT_FUNC
47580
94f64f11fdd0 Implement PEP 3121: new module initialization and finalization API.
Martin v. Löwis <martin@v.loewis.de>
parents: 47555
diff changeset
4501 PyInit_itertools(void)
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4502 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4503 int i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4504 PyObject *m;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4505 char *name;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4506 PyTypeObject *typelist[] = {
66589
5da093b49c2a Add itertools.accumulate().
Raymond Hettinger <python@rcn.com>
parents: 66546
diff changeset
4507 &accumulate_type,
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4508 &combinations_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4509 &cwr_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4510 &cycle_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4511 &dropwhile_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4512 &takewhile_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4513 &islice_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4514 &starmap_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4515 &chain_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4516 &compress_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4517 &filterfalse_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4518 &count_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4519 &ziplongest_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4520 &permutations_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4521 &product_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4522 &repeat_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4523 &groupby_type,
76091
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4524 &_grouper_type,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4525 &tee_type,
4ff234337e24 Issue #14288: Serialization support for builtin iterators.
Kristján Valur Jónsson <kristjan@ccpgames.com>
parents: 72926
diff changeset
4526 &teedataobject_type,
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4527 NULL
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4528 };
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4529
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4530 Py_TYPE(&teedataobject_type) = &PyType_Type;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4531 m = PyModule_Create(&itertoolsmodule);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4532 if (m == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4533 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4534
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4535 for (i=0 ; typelist[i] != NULL ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4536 if (PyType_Ready(typelist[i]) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4537 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4538 name = strchr(typelist[i]->tp_name, '.');
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4539 assert (name != NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4540 Py_INCREF(typelist[i]);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4541 PyModule_AddObject(m, name+1, (PyObject *)typelist[i]);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4542 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4543
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 57525
diff changeset
4544 return m;
27570
ba57c3daf6e9 Move itertools module from the sandbox and into production.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
4545 }