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annotate Objects/object.c @ 64772:1debff42ea46

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author Antoine Pitrou <solipsis@pitrou.net>
date Wed, 15 Sep 2010 15:09:40 +0000
parents 7c8f3459d9af
children 01b96f78fb70
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1
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2 /* Generic object operations; and implementation of None (NoObject) */
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3
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4 #include "Python.h"
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5 #include "sliceobject.h" /* For PyEllipsis_Type */
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6 #include "frameobject.h"
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7
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8 #ifdef __cplusplus
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9 extern "C" {
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10 #endif
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11
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12 #ifdef Py_REF_DEBUG
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13 Py_ssize_t _Py_RefTotal;
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14
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15 Py_ssize_t
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16 _Py_GetRefTotal(void)
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17 {
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18 PyObject *o;
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19 Py_ssize_t total = _Py_RefTotal;
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20 /* ignore the references to the dummy object of the dicts and sets
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21 because they are not reliable and not useful (now that the
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22 hash table code is well-tested) */
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23 o = _PyDict_Dummy();
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24 if (o != NULL)
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25 total -= o->ob_refcnt;
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26 o = _PySet_Dummy();
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27 if (o != NULL)
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28 total -= o->ob_refcnt;
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29 return total;
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30 }
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31 #endif /* Py_REF_DEBUG */
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32
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33 int Py_DivisionWarningFlag;
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34
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35 /* Object allocation routines used by NEWOBJ and NEWVAROBJ macros.
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36 These are used by the individual routines for object creation.
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37 Do not call them otherwise, they do not initialize the object! */
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38
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39 #ifdef Py_TRACE_REFS
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40 /* Head of circular doubly-linked list of all objects. These are linked
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41 * together via the _ob_prev and _ob_next members of a PyObject, which
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42 * exist only in a Py_TRACE_REFS build.
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43 */
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44 static PyObject refchain = {&refchain, &refchain};
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45
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46 /* Insert op at the front of the list of all objects. If force is true,
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47 * op is added even if _ob_prev and _ob_next are non-NULL already. If
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48 * force is false amd _ob_prev or _ob_next are non-NULL, do nothing.
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49 * force should be true if and only if op points to freshly allocated,
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50 * uninitialized memory, or you've unlinked op from the list and are
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51 * relinking it into the front.
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52 * Note that objects are normally added to the list via _Py_NewReference,
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53 * which is called by PyObject_Init. Not all objects are initialized that
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54 * way, though; exceptions include statically allocated type objects, and
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55 * statically allocated singletons (like Py_True and Py_None).
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56 */
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57 void
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58 _Py_AddToAllObjects(PyObject *op, int force)
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59 {
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60 #ifdef Py_DEBUG
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61 if (!force) {
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62 /* If it's initialized memory, op must be in or out of
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63 * the list unambiguously.
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64 */
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65 assert((op->_ob_prev == NULL) == (op->_ob_next == NULL));
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66 }
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67 #endif
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68 if (force || op->_ob_prev == NULL) {
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69 op->_ob_next = refchain._ob_next;
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70 op->_ob_prev = &refchain;
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71 refchain._ob_next->_ob_prev = op;
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72 refchain._ob_next = op;
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73 }
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74 }
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75 #endif /* Py_TRACE_REFS */
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76
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77 #ifdef COUNT_ALLOCS
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78 static PyTypeObject *type_list;
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79 /* All types are added to type_list, at least when
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80 they get one object created. That makes them
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81 immortal, which unfortunately contributes to
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82 garbage itself. If unlist_types_without_objects
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83 is set, they will be removed from the type_list
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84 once the last object is deallocated. */
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85 static int unlist_types_without_objects;
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86 extern Py_ssize_t tuple_zero_allocs, fast_tuple_allocs;
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87 extern Py_ssize_t quick_int_allocs, quick_neg_int_allocs;
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88 extern Py_ssize_t null_strings, one_strings;
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89 void
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90 dump_counts(FILE* f)
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91 {
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92 PyTypeObject *tp;
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93
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94 for (tp = type_list; tp; tp = tp->tp_next)
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95 fprintf(f, "%s alloc'd: %" PY_FORMAT_SIZE_T "d, "
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96 "freed: %" PY_FORMAT_SIZE_T "d, "
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97 "max in use: %" PY_FORMAT_SIZE_T "d\n",
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98 tp->tp_name, tp->tp_allocs, tp->tp_frees,
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99 tp->tp_maxalloc);
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100 fprintf(f, "fast tuple allocs: %" PY_FORMAT_SIZE_T "d, "
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101 "empty: %" PY_FORMAT_SIZE_T "d\n",
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102 fast_tuple_allocs, tuple_zero_allocs);
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103 fprintf(f, "fast int allocs: pos: %" PY_FORMAT_SIZE_T "d, "
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104 "neg: %" PY_FORMAT_SIZE_T "d\n",
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105 quick_int_allocs, quick_neg_int_allocs);
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106 fprintf(f, "null strings: %" PY_FORMAT_SIZE_T "d, "
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107 "1-strings: %" PY_FORMAT_SIZE_T "d\n",
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108 null_strings, one_strings);
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109 }
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110
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111 PyObject *
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112 get_counts(void)
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113 {
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114 PyTypeObject *tp;
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115 PyObject *result;
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116 PyObject *v;
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117
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118 result = PyList_New(0);
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119 if (result == NULL)
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120 return NULL;
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121 for (tp = type_list; tp; tp = tp->tp_next) {
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122 v = Py_BuildValue("(snnn)", tp->tp_name, tp->tp_allocs,
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123 tp->tp_frees, tp->tp_maxalloc);
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124 if (v == NULL) {
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125 Py_DECREF(result);
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126 return NULL;
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127 }
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128 if (PyList_Append(result, v) < 0) {
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129 Py_DECREF(v);
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130 Py_DECREF(result);
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131 return NULL;
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132 }
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133 Py_DECREF(v);
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134 }
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135 return result;
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136 }
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137
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138 void
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139 inc_count(PyTypeObject *tp)
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140 {
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141 if (tp->tp_next == NULL && tp->tp_prev == NULL) {
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142 /* first time; insert in linked list */
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143 if (tp->tp_next != NULL) /* sanity check */
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144 Py_FatalError("XXX inc_count sanity check");
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145 if (type_list)
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146 type_list->tp_prev = tp;
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147 tp->tp_next = type_list;
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148 /* Note that as of Python 2.2, heap-allocated type objects
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149 * can go away, but this code requires that they stay alive
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150 * until program exit. That's why we're careful with
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151 * refcounts here. type_list gets a new reference to tp,
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152 * while ownership of the reference type_list used to hold
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153 * (if any) was transferred to tp->tp_next in the line above.
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154 * tp is thus effectively immortal after this.
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155 */
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156 Py_INCREF(tp);
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157 type_list = tp;
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158 #ifdef Py_TRACE_REFS
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159 /* Also insert in the doubly-linked list of all objects,
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160 * if not already there.
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161 */
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162 _Py_AddToAllObjects((PyObject *)tp, 0);
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163 #endif
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164 }
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165 tp->tp_allocs++;
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166 if (tp->tp_allocs - tp->tp_frees > tp->tp_maxalloc)
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167 tp->tp_maxalloc = tp->tp_allocs - tp->tp_frees;
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168 }
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169
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170 void dec_count(PyTypeObject *tp)
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171 {
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172 tp->tp_frees++;
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173 if (unlist_types_without_objects &&
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174 tp->tp_allocs == tp->tp_frees) {
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175 /* unlink the type from type_list */
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176 if (tp->tp_prev)
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177 tp->tp_prev->tp_next = tp->tp_next;
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178 else
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179 type_list = tp->tp_next;
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180 if (tp->tp_next)
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181 tp->tp_next->tp_prev = tp->tp_prev;
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182 tp->tp_next = tp->tp_prev = NULL;
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183 Py_DECREF(tp);
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184 }
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185 }
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186
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187 #endif
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188
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189 #ifdef Py_REF_DEBUG
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190 /* Log a fatal error; doesn't return. */
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191 void
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192 _Py_NegativeRefcount(const char *fname, int lineno, PyObject *op)
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193 {
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194 char buf[300];
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195
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196 PyOS_snprintf(buf, sizeof(buf),
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197 "%s:%i object at %p has negative ref count "
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198 "%" PY_FORMAT_SIZE_T "d",
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199 fname, lineno, op, op->ob_refcnt);
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200 Py_FatalError(buf);
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201 }
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202
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203 #endif /* Py_REF_DEBUG */
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204
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205 void
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206 Py_IncRef(PyObject *o)
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207 {
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208 Py_XINCREF(o);
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209 }
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210
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211 void
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212 Py_DecRef(PyObject *o)
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213 {
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214 Py_XDECREF(o);
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215 }
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216
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217 PyObject *
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218 PyObject_Init(PyObject *op, PyTypeObject *tp)
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219 {
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220 if (op == NULL)
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221 return PyErr_NoMemory();
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222 /* Any changes should be reflected in PyObject_INIT (objimpl.h) */
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223 Py_TYPE(op) = tp;
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224 _Py_NewReference(op);
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225 return op;
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226 }
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227
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228 PyVarObject *
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229 PyObject_InitVar(PyVarObject *op, PyTypeObject *tp, Py_ssize_t size)
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230 {
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231 if (op == NULL)
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232 return (PyVarObject *) PyErr_NoMemory();
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233 /* Any changes should be reflected in PyObject_INIT_VAR */
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234 op->ob_size = size;
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235 Py_TYPE(op) = tp;
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236 _Py_NewReference((PyObject *)op);
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237 return op;
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238 }
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239
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240 PyObject *
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241 _PyObject_New(PyTypeObject *tp)
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242 {
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243 PyObject *op;
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244 op = (PyObject *) PyObject_MALLOC(_PyObject_SIZE(tp));
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245 if (op == NULL)
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246 return PyErr_NoMemory();
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247 return PyObject_INIT(op, tp);
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248 }
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249
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250 PyVarObject *
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251 _PyObject_NewVar(PyTypeObject *tp, Py_ssize_t nitems)
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252 {
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253 PyVarObject *op;
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254 const size_t size = _PyObject_VAR_SIZE(tp, nitems);
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255 op = (PyVarObject *) PyObject_MALLOC(size);
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256 if (op == NULL)
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257 return (PyVarObject *)PyErr_NoMemory();
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258 return PyObject_INIT_VAR(op, tp, nitems);
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259 }
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260
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261 int
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262 PyObject_Print(PyObject *op, FILE *fp, int flags)
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263 {
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264 int ret = 0;
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265 if (PyErr_CheckSignals())
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266 return -1;
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267 #ifdef USE_STACKCHECK
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268 if (PyOS_CheckStack()) {
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269 PyErr_SetString(PyExc_MemoryError, "stack overflow");
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270 return -1;
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271 }
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272 #endif
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273 clearerr(fp); /* Clear any previous error condition */
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274 if (op == NULL) {
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275 Py_BEGIN_ALLOW_THREADS
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276 fprintf(fp, "<nil>");
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277 Py_END_ALLOW_THREADS
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278 }
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279 else {
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280 if (op->ob_refcnt <= 0)
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281 /* XXX(twouters) cast refcount to long until %zd is
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282 universally available */
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283 Py_BEGIN_ALLOW_THREADS
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284 fprintf(fp, "<refcnt %ld at %p>",
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285 (long)op->ob_refcnt, op);
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286 Py_END_ALLOW_THREADS
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287 else {
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288 PyObject *s;
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289 if (flags & Py_PRINT_RAW)
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290 s = PyObject_Str(op);
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291 else
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292 s = PyObject_Repr(op);
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293 if (s == NULL)
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294 ret = -1;
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295 else if (PyBytes_Check(s)) {
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296 fwrite(PyBytes_AS_STRING(s), 1,
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297 PyBytes_GET_SIZE(s), fp);
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298 }
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299 else if (PyUnicode_Check(s)) {
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300 PyObject *t;
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301 t = PyUnicode_EncodeUTF8(PyUnicode_AS_UNICODE(s),
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302 PyUnicode_GET_SIZE(s),
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303 "backslashreplace");
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304 if (t == NULL)
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305 ret = 0;
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306 else {
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307 fwrite(PyBytes_AS_STRING(t), 1,
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308 PyBytes_GET_SIZE(t), fp);
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309 Py_DECREF(t);
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310 }
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311 }
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312 else {
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313 PyErr_Format(PyExc_TypeError,
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314 "str() or repr() returned '%.100s'",
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315 s->ob_type->tp_name);
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316 ret = -1;
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317 }
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318 Py_XDECREF(s);
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319 }
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320 }
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321 if (ret == 0) {
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322 if (ferror(fp)) {
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323 PyErr_SetFromErrno(PyExc_IOError);
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324 clearerr(fp);
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325 ret = -1;
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326 }
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327 }
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328 return ret;
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329 }
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330
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331 /* For debugging convenience. Set a breakpoint here and call it from your DLL */
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332 void
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333 _Py_BreakPoint(void)
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334 {
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335 }
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336
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337
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338 /* For debugging convenience. See Misc/gdbinit for some useful gdb hooks */
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339 void
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340 _PyObject_Dump(PyObject* op)
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341 {
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342 if (op == NULL)
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343 fprintf(stderr, "NULL\n");
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344 else {
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345 #ifdef WITH_THREAD
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346 PyGILState_STATE gil;
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347 #endif
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348 fprintf(stderr, "object : ");
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349 #ifdef WITH_THREAD
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350 gil = PyGILState_Ensure();
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351 #endif
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352 (void)PyObject_Print(op, stderr, 0);
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353 #ifdef WITH_THREAD
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354 PyGILState_Release(gil);
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355 #endif
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356 /* XXX(twouters) cast refcount to long until %zd is
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357 universally available */
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358 fprintf(stderr, "\n"
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359 "type : %s\n"
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360 "refcount: %ld\n"
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361 "address : %p\n",
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362 Py_TYPE(op)==NULL ? "NULL" : Py_TYPE(op)->tp_name,
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363 (long)op->ob_refcnt,
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364 op);
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365 }
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366 }
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367
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368 PyObject *
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369 PyObject_Repr(PyObject *v)
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370 {
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371 PyObject *res;
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372 if (PyErr_CheckSignals())
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373 return NULL;
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374 #ifdef USE_STACKCHECK
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375 if (PyOS_CheckStack()) {
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376 PyErr_SetString(PyExc_MemoryError, "stack overflow");
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377 return NULL;
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378 }
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379 #endif
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380 if (v == NULL)
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381 return PyUnicode_FromString("<NULL>");
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382 if (Py_TYPE(v)->tp_repr == NULL)
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383 return PyUnicode_FromFormat("<%s object at %p>",
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384 v->ob_type->tp_name, v);
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385 res = (*v->ob_type->tp_repr)(v);
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386 if (res != NULL && !PyUnicode_Check(res)) {
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387 PyErr_Format(PyExc_TypeError,
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388 "__repr__ returned non-string (type %.200s)",
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389 res->ob_type->tp_name);
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390 Py_DECREF(res);
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391 return NULL;
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392 }
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393 return res;
6
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394 }
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395
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396 PyObject *
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397 PyObject_Str(PyObject *v)
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aac8231a715c * mpzmodule.c: removed redundant mpz_print function.
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398 {
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399 PyObject *res;
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400 if (PyErr_CheckSignals())
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401 return NULL;
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402 #ifdef USE_STACKCHECK
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403 if (PyOS_CheckStack()) {
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404 PyErr_SetString(PyExc_MemoryError, "stack overflow");
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405 return NULL;
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406 }
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407 #endif
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408 if (v == NULL)
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409 return PyUnicode_FromString("<NULL>");
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410 if (PyUnicode_CheckExact(v)) {
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411 Py_INCREF(v);
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412 return v;
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413 }
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414 if (Py_TYPE(v)->tp_str == NULL)
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415 return PyObject_Repr(v);
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416
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417 /* It is possible for a type to have a tp_str representation that loops
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418 infinitely. */
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419 if (Py_EnterRecursiveCall(" while getting the str of an object"))
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420 return NULL;
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421 res = (*Py_TYPE(v)->tp_str)(v);
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422 Py_LeaveRecursiveCall();
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423 if (res == NULL)
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424 return NULL;
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425 if (!PyUnicode_Check(res)) {
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426 PyErr_Format(PyExc_TypeError,
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427 "__str__ returned non-string (type %.200s)",
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428 Py_TYPE(res)->tp_name);
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429 Py_DECREF(res);
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430 return NULL;
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431 }
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432 return res;
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433 }
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434
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435 PyObject *
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436 PyObject_ASCII(PyObject *v)
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437 {
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438 PyObject *repr, *ascii, *res;
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439
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440 repr = PyObject_Repr(v);
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441 if (repr == NULL)
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442 return NULL;
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443
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444 /* repr is guaranteed to be a PyUnicode object by PyObject_Repr */
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445 ascii = PyUnicode_EncodeASCII(
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446 PyUnicode_AS_UNICODE(repr),
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447 PyUnicode_GET_SIZE(repr),
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448 "backslashreplace");
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449
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450 Py_DECREF(repr);
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451 if (ascii == NULL)
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452 return NULL;
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453
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454 res = PyUnicode_DecodeASCII(
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455 PyBytes_AS_STRING(ascii),
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456 PyBytes_GET_SIZE(ascii),
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457 NULL);
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458
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459 Py_DECREF(ascii);
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460 return res;
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461 }
16001
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462
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463 PyObject *
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464 PyObject_Bytes(PyObject *v)
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465 {
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466 PyObject *result, *func;
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467 static PyObject *bytesstring = NULL;
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468
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469 if (v == NULL)
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470 return PyBytes_FromString("<NULL>");
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471
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472 if (PyBytes_CheckExact(v)) {
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473 Py_INCREF(v);
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474 return v;
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475 }
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476
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477 func = _PyObject_LookupSpecial(v, "__bytes__", &bytesstring);
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478 if (func != NULL) {
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479 result = PyObject_CallFunctionObjArgs(func, NULL);
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480 Py_DECREF(func);
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481 if (result == NULL)
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482 return NULL;
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483 if (!PyBytes_Check(result)) {
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484 PyErr_Format(PyExc_TypeError,
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485 "__bytes__ returned non-bytes (type %.200s)",
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486 Py_TYPE(result)->tp_name);
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487 Py_DECREF(result);
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488 return NULL;
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489 }
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490 return result;
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491 }
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492 else if (PyErr_Occurred())
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493 return NULL;
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494 return PyBytes_FromObject(v);
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495 }
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496
51247
ba94d7c095e8 Issue #1717, continued: remove PyObject_Compare and Py_CmpToRich declarations
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parents: 51245
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497 /* For Python 3.0.1 and later, the old three-way comparison has been
ba94d7c095e8 Issue #1717, continued: remove PyObject_Compare and Py_CmpToRich declarations
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498 completely removed in favour of rich comparisons. PyObject_Compare() and
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499 PyObject_Cmp() are gone, and the builtin cmp function no longer exists.
51270
debd14c489b9 Issue #1717: rename tp_compare to tp_reserved. I'll change the
Mark Dickinson <dickinsm@gmail.com>
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500 The old tp_compare slot has been renamed to tp_reserved, and should no
51247
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parents: 51245
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501 longer be used. Use tp_richcompare instead.
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502
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503 See (*) below for practical amendments.
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504
51247
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parents: 51245
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505 tp_richcompare gets called with a first argument of the appropriate type
ba94d7c095e8 Issue #1717, continued: remove PyObject_Compare and Py_CmpToRich declarations
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506 and a second object of an arbitrary type. We never do any kind of
ba94d7c095e8 Issue #1717, continued: remove PyObject_Compare and Py_CmpToRich declarations
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507 coercion.
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diff changeset
508
51247
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parents: 51245
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509 The tp_richcompare slot should return an object, as follows:
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510
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511 NULL if an exception occurred
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512 NotImplemented if the requested comparison is not implemented
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513 any other false value if the requested comparison is false
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514 any other true value if the requested comparison is true
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515
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516 The PyObject_RichCompare[Bool]() wrappers raise TypeError when they get
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517 NotImplemented.
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518
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519 (*) Practical amendments:
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diff changeset
520
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521 - If rich comparison returns NotImplemented, == and != are decided by
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522 comparing the object pointer (i.e. falling back to the base object
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diff changeset
523 implementation).
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diff changeset
524
23598
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Guido van Rossum <guido@python.org>
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525 */
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526
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527 /* Map rich comparison operators to their swapped version, e.g. LT <--> GT */
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528 int _Py_SwappedOp[] = {Py_GT, Py_GE, Py_EQ, Py_NE, Py_LT, Py_LE};
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529
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530 static char *opstrings[] = {"<", "<=", "==", "!=", ">", ">="};
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531
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532 /* Perform a rich comparison, raising TypeError when the requested comparison
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533 operator is not supported. */
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534 static PyObject *
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535 do_richcompare(PyObject *v, PyObject *w, int op)
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536 {
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537 richcmpfunc f;
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538 PyObject *res;
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539 int checked_reverse_op = 0;
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540
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541 if (v->ob_type != w->ob_type &&
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542 PyType_IsSubtype(w->ob_type, v->ob_type) &&
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543 (f = w->ob_type->tp_richcompare) != NULL) {
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544 checked_reverse_op = 1;
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545 res = (*f)(w, v, _Py_SwappedOp[op]);
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546 if (res != Py_NotImplemented)
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547 return res;
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548 Py_DECREF(res);
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549 }
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550 if ((f = v->ob_type->tp_richcompare) != NULL) {
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551 res = (*f)(v, w, op);
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552 if (res != Py_NotImplemented)
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553 return res;
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554 Py_DECREF(res);
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555 }
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556 if (!checked_reverse_op && (f = w->ob_type->tp_richcompare) != NULL) {
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557 res = (*f)(w, v, _Py_SwappedOp[op]);
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558 if (res != Py_NotImplemented)
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559 return res;
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560 Py_DECREF(res);
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561 }
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562 /* If neither object implements it, provide a sensible default
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563 for == and !=, but raise an exception for ordering. */
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564 switch (op) {
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565 case Py_EQ:
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566 res = (v == w) ? Py_True : Py_False;
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567 break;
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568 case Py_NE:
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569 res = (v != w) ? Py_True : Py_False;
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570 break;
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571 default:
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572 /* XXX Special-case None so it doesn't show as NoneType() */
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573 PyErr_Format(PyExc_TypeError,
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574 "unorderable types: %.100s() %s %.100s()",
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575 v->ob_type->tp_name,
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576 opstrings[op],
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577 w->ob_type->tp_name);
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578 return NULL;
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579 }
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580 Py_INCREF(res);
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581 return res;
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582 }
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583
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584 /* Perform a rich comparison with object result. This wraps do_richcompare()
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585 with a check for NULL arguments and a recursion check. */
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586
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587 PyObject *
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588 PyObject_RichCompare(PyObject *v, PyObject *w, int op)
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589 {
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590 PyObject *res;
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591
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592 assert(Py_LT <= op && op <= Py_GE);
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593 if (v == NULL || w == NULL) {
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594 if (!PyErr_Occurred())
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595 PyErr_BadInternalCall();
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596 return NULL;
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597 }
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598 if (Py_EnterRecursiveCall(" in comparison"))
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599 return NULL;
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600 res = do_richcompare(v, w, op);
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601 Py_LeaveRecursiveCall();
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602 return res;
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603 }
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604
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605 /* Perform a rich comparison with integer result. This wraps
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606 PyObject_RichCompare(), returning -1 for error, 0 for false, 1 for true. */
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607 int
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608 PyObject_RichCompareBool(PyObject *v, PyObject *w, int op)
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609 {
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610 PyObject *res;
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611 int ok;
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612
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613 /* Quick result when objects are the same.
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614 Guarantees that identity implies equality. */
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615 if (v == w) {
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616 if (op == Py_EQ)
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617 return 1;
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618 else if (op == Py_NE)
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619 return 0;
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620 }
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621
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622 res = PyObject_RichCompare(v, w, op);
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623 if (res == NULL)
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624 return -1;
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625 if (PyBool_Check(res))
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626 ok = (res == Py_True);
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627 else
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628 ok = PyObject_IsTrue(res);
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629 Py_DECREF(res);
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630 return ok;
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631 }
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632
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633 /* Set of hash utility functions to help maintaining the invariant that
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634 if a==b then hash(a)==hash(b)
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635
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636 All the utility functions (_Py_Hash*()) return "-1" to signify an error.
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637 */
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638
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639 /* For numeric types, the hash of a number x is based on the reduction
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640 of x modulo the prime P = 2**_PyHASH_BITS - 1. It's designed so that
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641 hash(x) == hash(y) whenever x and y are numerically equal, even if
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642 x and y have different types.
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643
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644 A quick summary of the hashing strategy:
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645
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646 (1) First define the 'reduction of x modulo P' for any rational
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647 number x; this is a standard extension of the usual notion of
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648 reduction modulo P for integers. If x == p/q (written in lowest
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649 terms), the reduction is interpreted as the reduction of p times
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650 the inverse of the reduction of q, all modulo P; if q is exactly
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651 divisible by P then define the reduction to be infinity. So we've
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652 got a well-defined map
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653
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654 reduce : { rational numbers } -> { 0, 1, 2, ..., P-1, infinity }.
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655
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656 (2) Now for a rational number x, define hash(x) by:
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diff changeset
657
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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diff changeset
658 reduce(x) if x >= 0
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
659 -reduce(-x) if x < 0
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
660
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Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
661 If the result of the reduction is infinity (this is impossible for
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
662 integers, floats and Decimals) then use the predefined hash value
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
663 _PyHASH_INF for x >= 0, or -_PyHASH_INF for x < 0, instead.
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
664 _PyHASH_INF, -_PyHASH_INF and _PyHASH_NAN are also used for the
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
665 hashes of float and Decimal infinities and nans.
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
666
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
667 A selling point for the above strategy is that it makes it possible
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
668 to compute hashes of decimal and binary floating-point numbers
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
669 efficiently, even if the exponent of the binary or decimal number
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
670 is large. The key point is that
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
671
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
672 reduce(x * y) == reduce(x) * reduce(y) (modulo _PyHASH_MODULUS)
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
673
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
674 provided that {reduce(x), reduce(y)} != {0, infinity}. The reduction of a
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
675 binary or decimal float is never infinity, since the denominator is a power
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
676 of 2 (for binary) or a divisor of a power of 10 (for decimal). So we have,
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
677 for nonnegative x,
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
678
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
679 reduce(x * 2**e) == reduce(x) * reduce(2**e) % _PyHASH_MODULUS
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
680
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
681 reduce(x * 10**e) == reduce(x) * reduce(10**e) % _PyHASH_MODULUS
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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diff changeset
682
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
683 and reduce(10**e) can be computed efficiently by the usual modular
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
684 exponentiation algorithm. For reduce(2**e) it's even better: since
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
685 P is of the form 2**n-1, reduce(2**e) is 2**(e mod n), and multiplication
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
686 by 2**(e mod n) modulo 2**n-1 just amounts to a rotation of bits.
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
687
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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diff changeset
688 */
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
689
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Fred Drake <fdrake@acm.org>
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diff changeset
690 long
13473
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Fred Drake <fdrake@acm.org>
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691 _Py_HashDouble(double v)
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692 {
61873
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diff changeset
693 int e, sign;
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diff changeset
694 double m;
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Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
695 unsigned long x, y;
13976
5ada9fa54801 Fix for http://sourceforge.net/bugs/?func=detailbug&bug_id=111866&group_id=5470.
Tim Peters <tim.peters@gmail.com>
parents: 13915
diff changeset
696
61466
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697 if (!Py_IS_FINITE(v)) {
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698 if (Py_IS_INFINITY(v))
61873
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699 return v > 0 ? _PyHASH_INF : -_PyHASH_INF;
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700 else
61873
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diff changeset
701 return _PyHASH_NAN;
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parents: 61858
diff changeset
702 }
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diff changeset
703
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Mark Dickinson <dickinsm@gmail.com>
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diff changeset
704 m = frexp(v, &e);
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
705
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
706 sign = 1;
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
707 if (m < 0) {
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
708 sign = -1;
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
709 m = -m;
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710 }
61873
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Mark Dickinson <dickinsm@gmail.com>
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diff changeset
711
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
712 /* process 28 bits at a time; this should work well both for binary
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
713 and hexadecimal floating point. */
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
714 x = 0;
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
715 while (m) {
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
716 x = ((x << 28) & _PyHASH_MODULUS) | x >> (_PyHASH_BITS - 28);
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
717 m *= 268435456.0; /* 2**28 */
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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diff changeset
718 e -= 28;
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
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719 y = (unsigned long)m; /* pull out integer part */
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
720 m -= y;
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
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721 x += y;
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
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722 if (x >= _PyHASH_MODULUS)
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
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723 x -= _PyHASH_MODULUS;
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724 }
61873
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725
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
726 /* adjust for the exponent; first reduce it modulo _PyHASH_BITS */
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
727 e = e >= 0 ? e % _PyHASH_BITS : _PyHASH_BITS-1-((-1-e) % _PyHASH_BITS);
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
728 x = ((x << e) & _PyHASH_MODULUS) | x >> (_PyHASH_BITS - e);
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
Mark Dickinson <dickinsm@gmail.com>
parents: 61858
diff changeset
729
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
730 x = x * sign;
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
731 if (x == (unsigned long)-1)
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
732 x = (unsigned long)-2;
0bc8ffe6ba9a Issue #8188: Introduce a new scheme for computing hashes of numbers
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parents: 61858
diff changeset
733 return (long)x;
13141
cca84745da3e This patch addresses two main issues: (1) There exist some non-fatal
Fred Drake <fdrake@acm.org>
parents: 13089
diff changeset
734 }
cca84745da3e This patch addresses two main issues: (1) There exist some non-fatal
Fred Drake <fdrake@acm.org>
parents: 13089
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735
cca84745da3e This patch addresses two main issues: (1) There exist some non-fatal
Fred Drake <fdrake@acm.org>
parents: 13089
diff changeset
736 long
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
737 _Py_HashPointer(void *p)
13141
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Fred Drake <fdrake@acm.org>
parents: 13089
diff changeset
738 {
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739 long x;
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740 size_t y = (size_t)p;
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diff changeset
741 /* bottom 3 or 4 bits are likely to be 0; rotate y by 4 to avoid
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
742 excessive hash collisions for dicts and sets */
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diff changeset
743 y = (y >> 4) | (y << (8 * SIZEOF_VOID_P - 4));
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744 x = (long)y;
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745 if (x == -1)
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746 x = -2;
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747 return x;
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Fred Drake <fdrake@acm.org>
parents: 13089
diff changeset
748 }
cca84745da3e This patch addresses two main issues: (1) There exist some non-fatal
Fred Drake <fdrake@acm.org>
parents: 13089
diff changeset
749
48475
f4e7ef4329a9 Manual forward port of 64962 - use PyObject_HashNotImplemented as a tp_hash level indicator that the default hash implementation has not been inherited
Nick Coghlan <ncoghlan@gmail.com>
parents: 47611
diff changeset
750 long
f4e7ef4329a9 Manual forward port of 64962 - use PyObject_HashNotImplemented as a tp_hash level indicator that the default hash implementation has not been inherited
Nick Coghlan <ncoghlan@gmail.com>
parents: 47611
diff changeset
751 PyObject_HashNotImplemented(PyObject *v)
f4e7ef4329a9 Manual forward port of 64962 - use PyObject_HashNotImplemented as a tp_hash level indicator that the default hash implementation has not been inherited
Nick Coghlan <ncoghlan@gmail.com>
parents: 47611
diff changeset
752 {
61466
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753 PyErr_Format(PyExc_TypeError, "unhashable type: '%.200s'",
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diff changeset
754 Py_TYPE(v)->tp_name);
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755 return -1;
48475
f4e7ef4329a9 Manual forward port of 64962 - use PyObject_HashNotImplemented as a tp_hash level indicator that the default hash implementation has not been inherited
Nick Coghlan <ncoghlan@gmail.com>
parents: 47611
diff changeset
756 }
13141
cca84745da3e This patch addresses two main issues: (1) There exist some non-fatal
Fred Drake <fdrake@acm.org>
parents: 13089
diff changeset
757
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 1051
diff changeset
758 long
13473
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Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
759 PyObject_Hash(PyObject *v)
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Guido van Rossum <guido@python.org>
parents: 1051
diff changeset
760 {
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761 PyTypeObject *tp = Py_TYPE(v);
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762 if (tp->tp_hash != NULL)
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763 return (*tp->tp_hash)(v);
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diff changeset
764 /* To keep to the general practice that inheriting
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765 * solely from object in C code should work without
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766 * an explicit call to PyType_Ready, we implicitly call
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767 * PyType_Ready here and then check the tp_hash slot again
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768 */
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769 if (tp->tp_dict == NULL) {
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770 if (PyType_Ready(tp) < 0)
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771 return -1;
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772 if (tp->tp_hash != NULL)
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773 return (*tp->tp_hash)(v);
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774 }
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775 /* Otherwise, the object can't be hashed */
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776 return PyObject_HashNotImplemented(v);
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Guido van Rossum <guido@python.org>
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777 }
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 1051
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778
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
779 PyObject *
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35331
diff changeset
780 PyObject_GetAttrString(PyObject *v, const char *name)
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
781 {
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782 PyObject *w, *res;
3986
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
783
61466
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784 if (Py_TYPE(v)->tp_getattr != NULL)
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diff changeset
785 return (*Py_TYPE(v)->tp_getattr)(v, (char*)name);
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diff changeset
786 w = PyUnicode_InternFromString(name);
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diff changeset
787 if (w == NULL)
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diff changeset
788 return NULL;
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diff changeset
789 res = PyObject_GetAttr(v, w);
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diff changeset
790 Py_XDECREF(w);
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diff changeset
791 return res;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
792 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
793
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
794 int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35331
diff changeset
795 PyObject_HasAttrString(PyObject *v, const char *name)
1324
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
796 {
61466
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diff changeset
797 PyObject *res = PyObject_GetAttrString(v, name);
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diff changeset
798 if (res != NULL) {
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diff changeset
799 Py_DECREF(res);
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diff changeset
800 return 1;
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diff changeset
801 }
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diff changeset
802 PyErr_Clear();
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diff changeset
803 return 0;
1324
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
804 }
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
805
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
806 int
35999
9541369b0dca Add const to several API functions that take char *.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 35331
diff changeset
807 PyObject_SetAttrString(PyObject *v, const char *name, PyObject *w)
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
808 {
61466
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diff changeset
809 PyObject *s;
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diff changeset
810 int res;
3986
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
811
61466
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diff changeset
812 if (Py_TYPE(v)->tp_setattr != NULL)
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diff changeset
813 return (*Py_TYPE(v)->tp_setattr)(v, (char*)name, w);
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diff changeset
814 s = PyUnicode_InternFromString(name);
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diff changeset
815 if (s == NULL)
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diff changeset
816 return -1;
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817 res = PyObject_SetAttr(v, s, w);
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diff changeset
818 Py_XDECREF(s);
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diff changeset
819 return res;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
820 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
821
5560
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
822 PyObject *
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
823 PyObject_GetAttr(PyObject *v, PyObject *name)
5560
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
824 {
61466
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diff changeset
825 PyTypeObject *tp = Py_TYPE(v);
18933
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diff changeset
826
61466
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diff changeset
827 if (!PyUnicode_Check(name)) {
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diff changeset
828 PyErr_Format(PyExc_TypeError,
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diff changeset
829 "attribute name must be string, not '%.200s'",
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diff changeset
830 name->ob_type->tp_name);
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diff changeset
831 return NULL;
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diff changeset
832 }
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diff changeset
833 if (tp->tp_getattro != NULL)
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diff changeset
834 return (*tp->tp_getattro)(v, name);
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parents: 60381
diff changeset
835 if (tp->tp_getattr != NULL) {
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parents: 60381
diff changeset
836 char *name_str = _PyUnicode_AsString(name);
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diff changeset
837 if (name_str == NULL)
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diff changeset
838 return NULL;
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diff changeset
839 return (*tp->tp_getattr)(v, name_str);
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diff changeset
840 }
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diff changeset
841 PyErr_Format(PyExc_AttributeError,
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diff changeset
842 "'%.50s' object has no attribute '%U'",
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diff changeset
843 tp->tp_name, name);
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diff changeset
844 return NULL;
5560
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
845 }
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
846
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
847 int
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
848 PyObject_HasAttr(PyObject *v, PyObject *name)
5560
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
849 {
61466
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diff changeset
850 PyObject *res = PyObject_GetAttr(v, name);
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diff changeset
851 if (res != NULL) {
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diff changeset
852 Py_DECREF(res);
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diff changeset
853 return 1;
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diff changeset
854 }
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diff changeset
855 PyErr_Clear();
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diff changeset
856 return 0;
5560
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
857 }
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
858
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
859 int
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
860 PyObject_SetAttr(PyObject *v, PyObject *name, PyObject *value)
5560
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
861 {
61466
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diff changeset
862 PyTypeObject *tp = Py_TYPE(v);
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parents: 60381
diff changeset
863 int err;
14660
983502b2cd43 PyObject_SetAttr() and PyObject_GetAttr() now also accept Unicode
Marc-André Lemburg <mal@egenix.com>
parents: 14375
diff changeset
864
61466
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diff changeset
865 if (!PyUnicode_Check(name)) {
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diff changeset
866 PyErr_Format(PyExc_TypeError,
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parents: 60381
diff changeset
867 "attribute name must be string, not '%.200s'",
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parents: 60381
diff changeset
868 name->ob_type->tp_name);
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diff changeset
869 return -1;
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parents: 60381
diff changeset
870 }
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diff changeset
871 Py_INCREF(name);
18933
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diff changeset
872
61466
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diff changeset
873 PyUnicode_InternInPlace(&name);
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parents: 60381
diff changeset
874 if (tp->tp_setattro != NULL) {
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diff changeset
875 err = (*tp->tp_setattro)(v, name, value);
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diff changeset
876 Py_DECREF(name);
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diff changeset
877 return err;
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diff changeset
878 }
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diff changeset
879 if (tp->tp_setattr != NULL) {
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parents: 60381
diff changeset
880 char *name_str = _PyUnicode_AsString(name);
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diff changeset
881 if (name_str == NULL)
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diff changeset
882 return -1;
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diff changeset
883 err = (*tp->tp_setattr)(v, name_str, value);
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diff changeset
884 Py_DECREF(name);
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diff changeset
885 return err;
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diff changeset
886 }
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diff changeset
887 Py_DECREF(name);
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diff changeset
888 assert(name->ob_refcnt >= 1);
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diff changeset
889 if (tp->tp_getattr == NULL && tp->tp_getattro == NULL)
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parents: 60381
diff changeset
890 PyErr_Format(PyExc_TypeError,
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parents: 60381
diff changeset
891 "'%.100s' object has no attributes "
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parents: 60381
diff changeset
892 "(%s .%U)",
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parents: 60381
diff changeset
893 tp->tp_name,
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diff changeset
894 value==NULL ? "del" : "assign to",
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diff changeset
895 name);
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diff changeset
896 else
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diff changeset
897 PyErr_Format(PyExc_TypeError,
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diff changeset
898 "'%.100s' object has only read-only attributes "
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diff changeset
899 "(%s .%U)",
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diff changeset
900 tp->tp_name,
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diff changeset
901 value==NULL ? "del" : "assign to",
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diff changeset
902 name);
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903 return -1;
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parents: 18887
diff changeset
904 }
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
905
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parents: 18887
diff changeset
906 /* Helper to get a pointer to an object's __dict__ slot, if any */
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diff changeset
907
09df3254b49d Merge of descr-branch back into trunk.
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parents: 18887
diff changeset
908 PyObject **
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parents: 18887
diff changeset
909 _PyObject_GetDictPtr(PyObject *obj)
09df3254b49d Merge of descr-branch back into trunk.
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diff changeset
910 {
61466
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diff changeset
911 Py_ssize_t dictoffset;
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diff changeset
912 PyTypeObject *tp = Py_TYPE(obj);
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diff changeset
913
61466
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diff changeset
914 dictoffset = tp->tp_dictoffset;
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diff changeset
915 if (dictoffset == 0)
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916 return NULL;
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diff changeset
917 if (dictoffset < 0) {
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diff changeset
918 Py_ssize_t tsize;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
919 size_t size;
22106
93eb4b61f687 SF patch 514641 (Naofumi Honda) - Negative ob_size of LongObjects
Guido van Rossum <guido@python.org>
parents: 21186
diff changeset
920
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
921 tsize = ((PyVarObject *)obj)->ob_size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
922 if (tsize < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
923 tsize = -tsize;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
924 size = _PyObject_VAR_SIZE(tp, tsize);
22106
93eb4b61f687 SF patch 514641 (Naofumi Honda) - Negative ob_size of LongObjects
Guido van Rossum <guido@python.org>
parents: 21186
diff changeset
925
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
926 dictoffset += (long)size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
927 assert(dictoffset > 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
928 assert(dictoffset % SIZEOF_VOID_P == 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
929 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
930 return (PyObject **) ((char *)obj + dictoffset);
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
931 }
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
932
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
933 PyObject *
28320
fd5ef7003469 Renamed PyObject_GenericGetIter to PyObject_SelfIter
Raymond Hettinger <python@rcn.com>
parents: 28308
diff changeset
934 PyObject_SelfIter(PyObject *obj)
28308
9c3572a5575f Created PyObject_GenericGetIter().
Raymond Hettinger <python@rcn.com>
parents: 27966
diff changeset
935 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
936 Py_INCREF(obj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
937 return obj;
28308
9c3572a5575f Created PyObject_GenericGetIter().
Raymond Hettinger <python@rcn.com>
parents: 27966
diff changeset
938 }
9c3572a5575f Created PyObject_GenericGetIter().
Raymond Hettinger <python@rcn.com>
parents: 27966
diff changeset
939
50755
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
940 /* Helper used when the __next__ method is removed from a type:
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
941 tp_iternext is never NULL and can be safely called without checking
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
942 on every iteration.
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
943 */
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
944
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
945 PyObject *
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
946 _PyObject_NextNotImplemented(PyObject *self)
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
947 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
948 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
949 "'%.200s' object is not iterable",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
950 Py_TYPE(self)->tp_name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
951 return NULL;
50755
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
952 }
c99ce0164699 Merged revisions 68560 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 50735
diff changeset
953
33489
4cb1016525b7 Move a comment back to its rightful location.
Michael W. Hudson <mwh@python.net>
parents: 32981
diff changeset
954 /* Generic GetAttr functions - put these in your tp_[gs]etattro slot */
4cb1016525b7 Move a comment back to its rightful location.
Michael W. Hudson <mwh@python.net>
parents: 32981
diff changeset
955
28308
9c3572a5575f Created PyObject_GenericGetIter().
Raymond Hettinger <python@rcn.com>
parents: 27966
diff changeset
956 PyObject *
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
957 _PyObject_GenericGetAttrWithDict(PyObject *obj, PyObject *name, PyObject *dict)
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
958 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
959 PyTypeObject *tp = Py_TYPE(obj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
960 PyObject *descr = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
961 PyObject *res = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
962 descrgetfunc f;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
963 Py_ssize_t dictoffset;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
964 PyObject **dictptr;
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
965
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
966 if (!PyUnicode_Check(name)){
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
967 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
968 "attribute name must be string, not '%.200s'",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
969 name->ob_type->tp_name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
970 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
971 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
972 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
973 Py_INCREF(name);
21186
0189186f4ed9 PyObject_Generic{Get,Set}Attr(): ensure that the attribute name is a
Guido van Rossum <guido@python.org>
parents: 20865
diff changeset
974
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
975 if (tp->tp_dict == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
976 if (PyType_Ready(tp) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
977 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
978 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
979
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
980 descr = _PyType_Lookup(tp, name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
981 Py_XINCREF(descr);
30159
941d49a65f06 Fix for
Michael W. Hudson <mwh@python.net>
parents: 28669
diff changeset
982
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
983 f = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
984 if (descr != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
985 f = descr->ob_type->tp_descr_get;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
986 if (f != NULL && PyDescr_IsData(descr)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
987 res = f(descr, obj, (PyObject *)obj->ob_type);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
988 Py_DECREF(descr);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
989 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
990 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
991 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
992
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
993 if (dict == NULL) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
994 /* Inline _PyObject_GetDictPtr */
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
995 dictoffset = tp->tp_dictoffset;
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
996 if (dictoffset != 0) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
997 if (dictoffset < 0) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
998 Py_ssize_t tsize;
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
999 size_t size;
24894
8862bc59685a Inline call to _PyObject_GetDictPtr() in PyObject_GenericGetAttr().
Guido van Rossum <guido@python.org>
parents: 24644
diff changeset
1000
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1001 tsize = ((PyVarObject *)obj)->ob_size;
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1002 if (tsize < 0)
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1003 tsize = -tsize;
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1004 size = _PyObject_VAR_SIZE(tp, tsize);
24894
8862bc59685a Inline call to _PyObject_GetDictPtr() in PyObject_GenericGetAttr().
Guido van Rossum <guido@python.org>
parents: 24644
diff changeset
1005
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1006 dictoffset += (long)size;
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1007 assert(dictoffset > 0);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1008 assert(dictoffset % SIZEOF_VOID_P == 0);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1009 }
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1010 dictptr = (PyObject **) ((char *)obj + dictoffset);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1011 dict = *dictptr;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1012 }
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1013 }
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1014 if (dict != NULL) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1015 Py_INCREF(dict);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1016 res = PyDict_GetItem(dict, name);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1017 if (res != NULL) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1018 Py_INCREF(res);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1019 Py_XDECREF(descr);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1020 Py_DECREF(dict);
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1021 goto done;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1022 }
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1023 Py_DECREF(dict);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1024 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1025
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1026 if (f != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1027 res = f(descr, obj, (PyObject *)Py_TYPE(obj));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1028 Py_DECREF(descr);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1029 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1030 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1031
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1032 if (descr != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1033 res = descr;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1034 /* descr was already increfed above */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1035 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1036 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1037
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1038 PyErr_Format(PyExc_AttributeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1039 "'%.50s' object has no attribute '%U'",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1040 tp->tp_name, name);
21186
0189186f4ed9 PyObject_Generic{Get,Set}Attr(): ensure that the attribute name is a
Guido van Rossum <guido@python.org>
parents: 20865
diff changeset
1041 done:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1042 Py_DECREF(name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1043 return res;
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1044 }
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1045
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1046 PyObject *
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1047 PyObject_GenericGetAttr(PyObject *obj, PyObject *name)
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1048 {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1049 return _PyObject_GenericGetAttrWithDict(obj, name, NULL);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1050 }
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1051
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1052 int
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1053 _PyObject_GenericSetAttrWithDict(PyObject *obj, PyObject *name,
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1054 PyObject *value, PyObject *dict)
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1055 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1056 PyTypeObject *tp = Py_TYPE(obj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1057 PyObject *descr;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1058 descrsetfunc f;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1059 PyObject **dictptr;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1060 int res = -1;
21186
0189186f4ed9 PyObject_Generic{Get,Set}Attr(): ensure that the attribute name is a
Guido van Rossum <guido@python.org>
parents: 20865
diff changeset
1061
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1062 if (!PyUnicode_Check(name)){
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1063 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1064 "attribute name must be string, not '%.200s'",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1065 name->ob_type->tp_name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1066 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1067 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1068 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1069 Py_INCREF(name);
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1070
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1071 if (tp->tp_dict == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1072 if (PyType_Ready(tp) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1073 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1074 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1075
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1076 descr = _PyType_Lookup(tp, name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1077 f = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1078 if (descr != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1079 f = descr->ob_type->tp_descr_set;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1080 if (f != NULL && PyDescr_IsData(descr)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1081 res = f(descr, obj, value);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1082 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1083 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1084 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1085
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1086 if (dict == NULL) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1087 dictptr = _PyObject_GetDictPtr(obj);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1088 if (dictptr != NULL) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1089 dict = *dictptr;
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1090 if (dict == NULL && value != NULL) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1091 dict = PyDict_New();
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1092 if (dict == NULL)
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1093 goto done;
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1094 *dictptr = dict;
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1095 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1096 }
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1097 }
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1098 if (dict != NULL) {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1099 Py_INCREF(dict);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1100 if (value == NULL)
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1101 res = PyDict_DelItem(dict, name);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1102 else
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1103 res = PyDict_SetItem(dict, name, value);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1104 if (res < 0 && PyErr_ExceptionMatches(PyExc_KeyError))
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1105 PyErr_SetObject(PyExc_AttributeError, name);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1106 Py_DECREF(dict);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1107 goto done;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1108 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1109
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1110 if (f != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1111 res = f(descr, obj, value);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1112 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1113 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1114
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1115 if (descr == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1116 PyErr_Format(PyExc_AttributeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1117 "'%.100s' object has no attribute '%U'",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1118 tp->tp_name, name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1119 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1120 }
18933
09df3254b49d Merge of descr-branch back into trunk.
Tim Peters <tim.peters@gmail.com>
parents: 18887
diff changeset
1121
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1122 PyErr_Format(PyExc_AttributeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1123 "'%.50s' object attribute '%U' is read-only",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1124 tp->tp_name, name);
21186
0189186f4ed9 PyObject_Generic{Get,Set}Attr(): ensure that the attribute name is a
Guido van Rossum <guido@python.org>
parents: 20865
diff changeset
1125 done:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1126 Py_DECREF(name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1127 return res;
5560
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
1128 }
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
1129
64298
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1130 int
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1131 PyObject_GenericSetAttr(PyObject *obj, PyObject *name, PyObject *value)
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1132 {
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1133 return _PyObject_GenericSetAttrWithDict(obj, name, value, NULL);
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1134 }
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1135
0265d5f7bd07 Issue #1868: Eliminate subtle timing issues in thread-local objects by
Antoine Pitrou <solipsis@pitrou.net>
parents: 63246
diff changeset
1136
1282
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1137 /* Test a value used as condition, e.g., in a for or if statement.
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1138 Return -1 if an error occurred */
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1139
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1140 int
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1141 PyObject_IsTrue(PyObject *v)
1282
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1142 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1143 Py_ssize_t res;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1144 if (v == Py_True)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1145 return 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1146 if (v == Py_False)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1147 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1148 if (v == Py_None)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1149 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1150 else if (v->ob_type->tp_as_number != NULL &&
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1151 v->ob_type->tp_as_number->nb_bool != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1152 res = (*v->ob_type->tp_as_number->nb_bool)(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1153 else if (v->ob_type->tp_as_mapping != NULL &&
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1154 v->ob_type->tp_as_mapping->mp_length != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1155 res = (*v->ob_type->tp_as_mapping->mp_length)(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1156 else if (v->ob_type->tp_as_sequence != NULL &&
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1157 v->ob_type->tp_as_sequence->sq_length != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1158 res = (*v->ob_type->tp_as_sequence->sq_length)(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1159 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1160 return 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1161 /* if it is negative, it should be either -1 or -2 */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1162 return (res > 0) ? 1 : Py_SAFE_DOWNCAST(res, Py_ssize_t, int);
1282
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1163 }
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
1164
24122
d332484e394a Trashcan cleanup: Now that cyclic gc is always there, the trashcan
Tim Peters <tim.peters@gmail.com>
parents: 24121
diff changeset
1165 /* equivalent of 'not v'
7935
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
1166 Return -1 if an error occurred */
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
1167
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
1168 int
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1169 PyObject_Not(PyObject *v)
7935
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
1170 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1171 int res;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1172 res = PyObject_IsTrue(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1173 if (res < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1174 return res;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1175 return res == 0;
7935
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
1176 }
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
1177
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
1178 /* Test whether an object can be called */
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
1179
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
1180 int
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1181 PyCallable_Check(PyObject *x)
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
1182 {
61466
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parents: 60381
diff changeset
1183 if (x == NULL)
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parents: 60381
diff changeset
1184 return 0;
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parents: 60381
diff changeset
1185 return x->ob_type->tp_call != NULL;
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
1186 }
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
1187
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1188 /* ------------------------- PyObject_Dir() helpers ------------------------- */
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1189
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1190 /* Helper for PyObject_Dir.
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1191 Merge the __dict__ of aclass into dict, and recursively also all
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1192 the __dict__s of aclass's base classes. The order of merging isn't
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1193 defined, as it's expected that only the final set of dict keys is
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1194 interesting.
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1195 Return 0 on success, -1 on error.
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1196 */
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1197
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1198 static int
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1199 merge_class_dict(PyObject* dict, PyObject* aclass)
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1200 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1201 PyObject *classdict;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1202 PyObject *bases;
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1203
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1204 assert(PyDict_Check(dict));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1205 assert(aclass);
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1206
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1207 /* Merge in the type's dict (if any). */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1208 classdict = PyObject_GetAttrString(aclass, "__dict__");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1209 if (classdict == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1210 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1211 else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1212 int status = PyDict_Update(dict, classdict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1213 Py_DECREF(classdict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1214 if (status < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1215 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1216 }
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1217
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1218 /* Recursively merge in the base types' (if any) dicts. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1219 bases = PyObject_GetAttrString(aclass, "__bases__");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1220 if (bases == NULL)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1221 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1222 else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1223 /* We have no guarantee that bases is a real tuple */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1224 Py_ssize_t i, n;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1225 n = PySequence_Size(bases); /* This better be right */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1226 if (n < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1227 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1228 else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1229 for (i = 0; i < n; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1230 int status;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1231 PyObject *base = PySequence_GetItem(bases, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1232 if (base == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1233 Py_DECREF(bases);
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parents: 60381
diff changeset
1234 return -1;
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parents: 60381
diff changeset
1235 }
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parents: 60381
diff changeset
1236 status = merge_class_dict(dict, base);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1237 Py_DECREF(base);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1238 if (status < 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1239 Py_DECREF(bases);
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parents: 60381
diff changeset
1240 return -1;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1241 }
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parents: 60381
diff changeset
1242 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1243 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1244 Py_DECREF(bases);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1245 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1246 return 0;
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1247 }
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1248
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1249 /* Helper for PyObject_Dir without arguments: returns the local scope. */
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1250 static PyObject *
41450
d1c3dd184e38 Rough and dirty job -- allow concatenation of bytes and arbitrary
Guido van Rossum <guido@python.org>
parents: 41124
diff changeset
1251 _dir_locals(void)
19932
621ed13445de PyObject_Dir(): Merge in __members__ and __methods__ too (if they exist,
Tim Peters <tim.peters@gmail.com>
parents: 19931
diff changeset
1252 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1253 PyObject *names;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1254 PyObject *locals = PyEval_GetLocals();
19932
621ed13445de PyObject_Dir(): Merge in __members__ and __methods__ too (if they exist,
Tim Peters <tim.peters@gmail.com>
parents: 19931
diff changeset
1255
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1256 if (locals == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1257 PyErr_SetString(PyExc_SystemError, "frame does not exist");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1258 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1259 }
19932
621ed13445de PyObject_Dir(): Merge in __members__ and __methods__ too (if they exist,
Tim Peters <tim.peters@gmail.com>
parents: 19931
diff changeset
1260
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1261 names = PyMapping_Keys(locals);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1262 if (!names)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1263 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1264 if (!PyList_Check(names)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1265 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1266 "dir(): expected keys() of locals to be a list, "
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1267 "not '%.200s'", Py_TYPE(names)->tp_name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1268 Py_DECREF(names);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1269 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1270 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1271 /* the locals don't need to be DECREF'd */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1272 return names;
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1273 }
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1274
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1275 /* Helper for PyObject_Dir of type objects: returns __dict__ and __bases__.
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43734
diff changeset
1276 We deliberately don't suck up its __class__, as methods belonging to the
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43734
diff changeset
1277 metaclass would probably be more confusing than helpful.
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1278 */
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43734
diff changeset
1279 static PyObject *
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1280 _specialized_dir_type(PyObject *obj)
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1281 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1282 PyObject *result = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1283 PyObject *dict = PyDict_New();
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1284
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1285 if (dict != NULL && merge_class_dict(dict, obj) == 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1286 result = PyDict_Keys(dict);
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1287
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1288 Py_XDECREF(dict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1289 return result;
19932
621ed13445de PyObject_Dir(): Merge in __members__ and __methods__ too (if they exist,
Tim Peters <tim.peters@gmail.com>
parents: 19931
diff changeset
1290 }
621ed13445de PyObject_Dir(): Merge in __members__ and __methods__ too (if they exist,
Tim Peters <tim.peters@gmail.com>
parents: 19931
diff changeset
1291
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1292 /* Helper for PyObject_Dir of module objects: returns the module's __dict__. */
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1293 static PyObject *
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1294 _specialized_dir_module(PyObject *obj)
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1295 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1296 PyObject *result = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1297 PyObject *dict = PyObject_GetAttrString(obj, "__dict__");
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1298
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1299 if (dict != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1300 if (PyDict_Check(dict))
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diff changeset
1301 result = PyDict_Keys(dict);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1302 else {
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1303 const char *name = PyModule_GetName(obj);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1304 if (name)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1305 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1306 "%.200s.__dict__ is not a dictionary",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1307 name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1308 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1309 }
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1310
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1311 Py_XDECREF(dict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1312 return result;
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1313 }
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1314
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1315 /* Helper for PyObject_Dir of generic objects: returns __dict__, __class__,
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1316 and recursively up the __class__.__bases__ chain.
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1317 */
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1318 static PyObject *
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1319 _generic_dir(PyObject *obj)
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1320 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1321 PyObject *result = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1322 PyObject *dict = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1323 PyObject *itsclass = NULL;
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43734
diff changeset
1324
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1325 /* Get __dict__ (which may or may not be a real dict...) */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1326 dict = PyObject_GetAttrString(obj, "__dict__");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1327 if (dict == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1328 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1329 dict = PyDict_New();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1330 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1331 else if (!PyDict_Check(dict)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1332 Py_DECREF(dict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1333 dict = PyDict_New();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1334 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1335 else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1336 /* Copy __dict__ to avoid mutating it. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1337 PyObject *temp = PyDict_Copy(dict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1338 Py_DECREF(dict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1339 dict = temp;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1340 }
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1341
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1342 if (dict == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1343 goto error;
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1344
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1345 /* Merge in attrs reachable from its class. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1346 itsclass = PyObject_GetAttrString(obj, "__class__");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1347 if (itsclass == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1348 /* XXX(tomer): Perhaps fall back to obj->ob_type if no
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1349 __class__ exists? */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1350 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1351 else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1352 if (merge_class_dict(dict, itsclass) != 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1353 goto error;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1354 }
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1355
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1356 result = PyDict_Keys(dict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1357 /* fall through */
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1358 error:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1359 Py_XDECREF(itsclass);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1360 Py_XDECREF(dict);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1361 return result;
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1362 }
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1363
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1364 /* Helper for PyObject_Dir: object introspection.
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1365 This calls one of the above specialized versions if no __dir__ method
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1366 exists. */
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1367 static PyObject *
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1368 _dir_object(PyObject *obj)
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1369 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1370 PyObject * result = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1371 PyObject * dirfunc = PyObject_GetAttrString((PyObject*)obj->ob_type,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1372 "__dir__");
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1373
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1374 assert(obj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1375 if (dirfunc == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1376 /* use default implementation */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1377 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1378 if (PyModule_Check(obj))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1379 result = _specialized_dir_module(obj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1380 else if (PyType_Check(obj))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1381 result = _specialized_dir_type(obj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1382 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1383 result = _generic_dir(obj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1384 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1385 else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1386 /* use __dir__ */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1387 result = PyObject_CallFunctionObjArgs(dirfunc, obj, NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1388 Py_DECREF(dirfunc);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1389 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1390 return NULL;
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1391
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1392 /* result must be a list */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1393 /* XXX(gbrandl): could also check if all items are strings */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1394 if (!PyList_Check(result)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1395 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1396 "__dir__() must return a list, not %.200s",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1397 Py_TYPE(result)->tp_name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1398 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1399 result = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1400 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1401 }
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1402
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1403 return result;
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1404 }
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1405
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1406 /* Implementation of dir() -- if obj is NULL, returns the names in the current
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1407 (local) scope. Otherwise, performs introspection of the object: returns a
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1408 sorted list of attribute names (supposedly) accessible from the object
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1409 */
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1410 PyObject *
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1411 PyObject_Dir(PyObject *obj)
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1412 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1413 PyObject * result;
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1414
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1415 if (obj == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1416 /* no object -- introspect the locals */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1417 result = _dir_locals();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1418 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1419 /* object -- introspect the object */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1420 result = _dir_object(obj);
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1421
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1422 assert(result == NULL || PyList_Check(result));
41107
cf452027073e Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.
Georg Brandl <georg@python.org>
parents: 40737
diff changeset
1423
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1424 if (result != NULL && PyList_Sort(result) != 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1425 /* sorting the list failed */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1426 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1427 result = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1428 }
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 43734
diff changeset
1429
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1430 return result;
19705
b7f6fbc087a7 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
Tim Peters <tim.peters@gmail.com>
parents: 19633
diff changeset
1431 }
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
1432
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1433 /*
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1434 NoObject is usable as a non-NULL undefined value, used by the macro None.
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1435 There is (and should be!) no way to create other objects of this type,
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
1436 so there is exactly one (which is indestructible, by the way).
19294
1456ec735087 Add a function _Py_ReadyTypes() which initializes various and sundry
Guido van Rossum <guido@python.org>
parents: 19293
diff changeset
1437 (XXX This type and the type of NotImplemented below should be unified.)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1438 */
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1439
739
ab1b3486b226 Fix lint bug
Guido van Rossum <guido@python.org>
parents: 512
diff changeset
1440 /* ARGSUSED */
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
1441 static PyObject *
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1442 none_repr(PyObject *op)
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
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diff changeset
1443 {
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1444 return PyUnicode_FromString("None");
6
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1445 }
fc6fcd7df4f7 Initial revision
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diff changeset
1446
16165
0a72070eab6e A few miscellaneous helpers.
Barry Warsaw <barry@python.org>
parents: 16123
diff changeset
1447 /* ARGUSED */
0a72070eab6e A few miscellaneous helpers.
Barry Warsaw <barry@python.org>
parents: 16123
diff changeset
1448 static void
24122
d332484e394a Trashcan cleanup: Now that cyclic gc is always there, the trashcan
Tim Peters <tim.peters@gmail.com>
parents: 24121
diff changeset
1449 none_dealloc(PyObject* ignore)
16165
0a72070eab6e A few miscellaneous helpers.
Barry Warsaw <barry@python.org>
parents: 16123
diff changeset
1450 {
61466
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1451 /* This should never get called, but we also don't want to SEGV if
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diff changeset
1452 * we accidentally decref None out of existence.
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1453 */
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1454 Py_FatalError("deallocating None");
16165
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Barry Warsaw <barry@python.org>
parents: 16123
diff changeset
1455 }
0a72070eab6e A few miscellaneous helpers.
Barry Warsaw <barry@python.org>
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diff changeset
1456
0a72070eab6e A few miscellaneous helpers.
Barry Warsaw <barry@python.org>
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diff changeset
1457
19294
1456ec735087 Add a function _Py_ReadyTypes() which initializes various and sundry
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1458 static PyTypeObject PyNone_Type = {
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1459 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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1460 "NoneType",
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1461 0,
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1462 0,
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1463 none_dealloc, /*tp_dealloc*/ /*never called*/
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1464 0, /*tp_print*/
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1465 0, /*tp_getattr*/
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1466 0, /*tp_setattr*/
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1467 0, /*tp_reserved*/
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1468 none_repr, /*tp_repr*/
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1469 0, /*tp_as_number*/
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1470 0, /*tp_as_sequence*/
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1471 0, /*tp_as_mapping*/
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1472 0, /*tp_hash */
6
fc6fcd7df4f7 Initial revision
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1473 };
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diff changeset
1474
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1475 PyObject _Py_NoneStruct = {
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parents: 42196
diff changeset
1476 _PyObject_EXTRA_INIT
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diff changeset
1477 1, &PyNone_Type
6
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diff changeset
1478 };
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diff changeset
1479
15726
db9f1893be01 Changes for PEP 208. PyObject_Compare has been rewritten. Instances no
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diff changeset
1480 /* NotImplemented is an object that can be used to signal that an
db9f1893be01 Changes for PEP 208. PyObject_Compare has been rewritten. Instances no
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parents: 15318
diff changeset
1481 operation is not implemented for the given type combination. */
db9f1893be01 Changes for PEP 208. PyObject_Compare has been rewritten. Instances no
Neil Schemenauer <nascheme@enme.ucalgary.ca>
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diff changeset
1482
db9f1893be01 Changes for PEP 208. PyObject_Compare has been rewritten. Instances no
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diff changeset
1483 static PyObject *
db9f1893be01 Changes for PEP 208. PyObject_Compare has been rewritten. Instances no
Neil Schemenauer <nascheme@enme.ucalgary.ca>
parents: 15318
diff changeset
1484 NotImplemented_repr(PyObject *op)
db9f1893be01 Changes for PEP 208. PyObject_Compare has been rewritten. Instances no
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parents: 15318
diff changeset
1485 {
61466
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diff changeset
1486 return PyUnicode_FromString("NotImplemented");
15726
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
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diff changeset
1487 }
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Neil Schemenauer <nascheme@enme.ucalgary.ca>
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diff changeset
1488
db9f1893be01 Changes for PEP 208. PyObject_Compare has been rewritten. Instances no
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diff changeset
1489 static PyTypeObject PyNotImplemented_Type = {
61466
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1490 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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diff changeset
1491 "NotImplementedType",
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1492 0,
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1493 0,
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1494 none_dealloc, /*tp_dealloc*/ /*never called*/
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1495 0, /*tp_print*/
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1496 0, /*tp_getattr*/
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1497 0, /*tp_setattr*/
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1498 0, /*tp_reserved*/
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diff changeset
1499 NotImplemented_repr, /*tp_repr*/
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1500 0, /*tp_as_number*/
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1501 0, /*tp_as_sequence*/
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1502 0, /*tp_as_mapping*/
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1503 0, /*tp_hash */
15726
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1504 };
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diff changeset
1505
db9f1893be01 Changes for PEP 208. PyObject_Compare has been rewritten. Instances no
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1506 PyObject _Py_NotImplementedStruct = {
61466
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1507 _PyObject_EXTRA_INIT
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1508 1, &PyNotImplemented_Type
15726
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diff changeset
1509 };
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1510
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diff changeset
1511 void
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diff changeset
1512 _Py_ReadyTypes(void)
1456ec735087 Add a function _Py_ReadyTypes() which initializes various and sundry
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diff changeset
1513 {
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1514 if (PyType_Ready(&PyType_Type) < 0)
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1515 Py_FatalError("Can't initialize type type");
19294
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1516
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1517 if (PyType_Ready(&_PyWeakref_RefType) < 0)
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diff changeset
1518 Py_FatalError("Can't initialize weakref type");
32472
4383db77b19a Make weak references subclassable:
Fred Drake <fdrake@acm.org>
parents: 32463
diff changeset
1519
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1520 if (PyType_Ready(&_PyWeakref_CallableProxyType) < 0)
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diff changeset
1521 Py_FatalError("Can't initialize callable weakref proxy type");
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1522
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1523 if (PyType_Ready(&_PyWeakref_ProxyType) < 0)
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diff changeset
1524 Py_FatalError("Can't initialize weakref proxy type");
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1525
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1526 if (PyType_Ready(&PyBool_Type) < 0)
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1527 Py_FatalError("Can't initialize bool type");
22785
aa8d59823add Add the 'bool' type and its values 'False' and 'True', as described in
Guido van Rossum <guido@python.org>
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1528
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1529 if (PyType_Ready(&PyByteArray_Type) < 0)
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1530 Py_FatalError("Can't initialize bytearray type");
37927
a7f3765ea464 Here is a bytes type. It's very minimal but it's a start.
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1531
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1532 if (PyType_Ready(&PyBytes_Type) < 0)
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1533 Py_FatalError("Can't initialize 'str'");
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220b98f06415 - A new type object, 'string', is added. This is a common base type
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1534
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1535 if (PyType_Ready(&PyList_Type) < 0)
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1536 Py_FatalError("Can't initialize list type");
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1537
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1538 if (PyType_Ready(&PyNone_Type) < 0)
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1539 Py_FatalError("Can't initialize None type");
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1540
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1541 if (PyType_Ready(Py_Ellipsis->ob_type) < 0)
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diff changeset
1542 Py_FatalError("Can't initialize type(Ellipsis)");
39536
8f5b9982beba Completely get rid of PyClass and PyInstance.
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parents: 39442
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1543
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1544 if (PyType_Ready(&PyNotImplemented_Type) < 0)
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1545 Py_FatalError("Can't initialize NotImplemented type");
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1547 if (PyType_Ready(&PyTraceBack_Type) < 0)
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diff changeset
1548 Py_FatalError("Can't initialize traceback type");
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1549
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1550 if (PyType_Ready(&PySuper_Type) < 0)
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1551 Py_FatalError("Can't initialize super type");
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1552
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1553 if (PyType_Ready(&PyBaseObject_Type) < 0)
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1554 Py_FatalError("Can't initialize object type");
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1555
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1556 if (PyType_Ready(&PyRange_Type) < 0)
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1557 Py_FatalError("Can't initialize range type");
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1558
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1559 if (PyType_Ready(&PyDict_Type) < 0)
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1560 Py_FatalError("Can't initialize dict type");
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1561
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1562 if (PyType_Ready(&PySet_Type) < 0)
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1563 Py_FatalError("Can't initialize set type");
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1565 if (PyType_Ready(&PyUnicode_Type) < 0)
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1566 Py_FatalError("Can't initialize str type");
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1568 if (PyType_Ready(&PySlice_Type) < 0)
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diff changeset
1569 Py_FatalError("Can't initialize slice type");
53244
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diff changeset
1570
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diff changeset
1571 if (PyType_Ready(&PyStaticMethod_Type) < 0)
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diff changeset
1572 Py_FatalError("Can't initialize static method type");
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diff changeset
1573
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diff changeset
1574 if (PyType_Ready(&PyComplex_Type) < 0)
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diff changeset
1575 Py_FatalError("Can't initialize complex type");
56594
0f9e8d3ecac3 Issue 7147 - remove ability to attempt to build Python without complex number support (was broken anyway)
Skip Montanaro <skip@pobox.com>
parents: 55646
diff changeset
1576
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diff changeset
1577 if (PyType_Ready(&PyFloat_Type) < 0)
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diff changeset
1578 Py_FatalError("Can't initialize float type");
53244
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diff changeset
1579
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diff changeset
1580 if (PyType_Ready(&PyLong_Type) < 0)
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diff changeset
1581 Py_FatalError("Can't initialize int type");
53244
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diff changeset
1582
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diff changeset
1583 if (PyType_Ready(&PyFrozenSet_Type) < 0)
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diff changeset
1584 Py_FatalError("Can't initialize frozenset type");
53244
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1585
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diff changeset
1586 if (PyType_Ready(&PyProperty_Type) < 0)
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diff changeset
1587 Py_FatalError("Can't initialize property type");
53244
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1588
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diff changeset
1589 if (PyType_Ready(&PyMemoryView_Type) < 0)
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diff changeset
1590 Py_FatalError("Can't initialize memoryview type");
53244
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1591
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diff changeset
1592 if (PyType_Ready(&PyTuple_Type) < 0)
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diff changeset
1593 Py_FatalError("Can't initialize tuple type");
53244
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diff changeset
1594
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diff changeset
1595 if (PyType_Ready(&PyEnum_Type) < 0)
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diff changeset
1596 Py_FatalError("Can't initialize enumerate type");
53244
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1597
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diff changeset
1598 if (PyType_Ready(&PyReversed_Type) < 0)
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diff changeset
1599 Py_FatalError("Can't initialize reversed type");
39644
13d5e5f0e993 Restructure comparison dramatically. There is no longer a default
Guido van Rossum <guido@python.org>
parents: 39623
diff changeset
1600
61466
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diff changeset
1601 if (PyType_Ready(&PyStdPrinter_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1602 Py_FatalError("Can't initialize StdPrinter");
53274
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1603
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diff changeset
1604 if (PyType_Ready(&PyCode_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1605 Py_FatalError("Can't initialize code type");
53274
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1606
61466
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diff changeset
1607 if (PyType_Ready(&PyFrame_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1608 Py_FatalError("Can't initialize frame type");
53274
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1609
61466
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diff changeset
1610 if (PyType_Ready(&PyCFunction_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1611 Py_FatalError("Can't initialize builtin function type");
53274
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diff changeset
1612
61466
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diff changeset
1613 if (PyType_Ready(&PyMethod_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1614 Py_FatalError("Can't initialize method type");
53274
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1615
61466
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diff changeset
1616 if (PyType_Ready(&PyFunction_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1617 Py_FatalError("Can't initialize function type");
53274
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1618
61466
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diff changeset
1619 if (PyType_Ready(&PyDictProxy_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1620 Py_FatalError("Can't initialize dict proxy type");
53274
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Benjamin Peterson <benjamin@python.org>
parents: 53244
diff changeset
1621
61466
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diff changeset
1622 if (PyType_Ready(&PyGen_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1623 Py_FatalError("Can't initialize generator type");
53274
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Benjamin Peterson <benjamin@python.org>
parents: 53244
diff changeset
1624
61466
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diff changeset
1625 if (PyType_Ready(&PyGetSetDescr_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1626 Py_FatalError("Can't initialize get-set descriptor type");
53274
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Benjamin Peterson <benjamin@python.org>
parents: 53244
diff changeset
1627
61466
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diff changeset
1628 if (PyType_Ready(&PyWrapperDescr_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1629 Py_FatalError("Can't initialize wrapper type");
53274
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1630
61466
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diff changeset
1631 if (PyType_Ready(&PyEllipsis_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1632 Py_FatalError("Can't initialize ellipsis type");
53274
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Benjamin Peterson <benjamin@python.org>
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diff changeset
1633
61466
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diff changeset
1634 if (PyType_Ready(&PyMemberDescr_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1635 Py_FatalError("Can't initialize member descriptor type");
53953
261f594014c6 these builtins have to be initialized
Benjamin Peterson <benjamin@python.org>
parents: 53906
diff changeset
1636
61466
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diff changeset
1637 if (PyType_Ready(&PyFilter_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1638 Py_FatalError("Can't initialize filter type");
53953
261f594014c6 these builtins have to be initialized
Benjamin Peterson <benjamin@python.org>
parents: 53906
diff changeset
1639
61466
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diff changeset
1640 if (PyType_Ready(&PyMap_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1641 Py_FatalError("Can't initialize map type");
53953
261f594014c6 these builtins have to be initialized
Benjamin Peterson <benjamin@python.org>
parents: 53906
diff changeset
1642
61466
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diff changeset
1643 if (PyType_Ready(&PyZip_Type) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1644 Py_FatalError("Can't initialize zip type");
19294
1456ec735087 Add a function _Py_ReadyTypes() which initializes various and sundry
Guido van Rossum <guido@python.org>
parents: 19293
diff changeset
1645 }
1456ec735087 Add a function _Py_ReadyTypes() which initializes various and sundry
Guido van Rossum <guido@python.org>
parents: 19293
diff changeset
1646
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1647
3574
1ec154241747 TRACE_REFS -> Py_TRACE_REFS.
Guido van Rossum <guido@python.org>
parents: 3330
diff changeset
1648 #ifdef Py_TRACE_REFS
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1649
4002
4241582636ad Define reference count admin debug functions to return void.
Guido van Rossum <guido@python.org>
parents: 3986
diff changeset
1650 void
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1651 _Py_NewReference(PyObject *op)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1652 {
61466
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diff changeset
1653 _Py_INC_REFTOTAL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1654 op->ob_refcnt = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1655 _Py_AddToAllObjects(op, 1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1656 _Py_INC_TPALLOCS(op);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1657 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1658
4002
4241582636ad Define reference count admin debug functions to return void.
Guido van Rossum <guido@python.org>
parents: 3986
diff changeset
1659 void
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1660 _Py_ForgetReference(register PyObject *op)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1661 {
11673
5e6e9e893acd The rest of the changes by Trent Mick and Dale Nagata for warning-free
Guido van Rossum <guido@python.org>
parents: 11649
diff changeset
1662 #ifdef SLOW_UNREF_CHECK
61466
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diff changeset
1663 register PyObject *p;
11673
5e6e9e893acd The rest of the changes by Trent Mick and Dale Nagata for warning-free
Guido van Rossum <guido@python.org>
parents: 11649
diff changeset
1664 #endif
61466
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diff changeset
1665 if (op->ob_refcnt < 0)
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diff changeset
1666 Py_FatalError("UNREF negative refcnt");
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diff changeset
1667 if (op == &refchain ||
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diff changeset
1668 op->_ob_prev->_ob_next != op || op->_ob_next->_ob_prev != op) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1669 fprintf(stderr, "* ob\n");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1670 _PyObject_Dump(op);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60381
diff changeset
1671 fprintf(stderr, "* op->_ob_prev->_ob_next\n");
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diff changeset
1672 _PyObject_Dump(op->_ob_prev->_ob_next);
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diff changeset
1673 fprintf(stderr, "* op->_ob_next->_ob_prev\n");
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parents: 60381
diff changeset
1674 _PyObject_Dump(op->_ob_next->_ob_prev);
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diff changeset
1675 Py_FatalError("UNREF invalid object");
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diff changeset
1676 }
1017
cb7ef9bd9ede If a type has a repr function but no print function, printing it now
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1677 #ifdef SLOW_UNREF_CHECK
61466
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diff changeset
1678 for (p = refchain._ob_next; p != &refchain; p = p->_ob_next) {
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diff changeset
1679 if (p == op)
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diff changeset
1680 break;
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diff changeset
1681 }
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diff changeset
1682 if (p == &refchain) /* Not found */
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diff changeset
1683 Py_FatalError("UNREF unknown object");
1017
cb7ef9bd9ede If a type has a repr function but no print function, printing it now
Guido van Rossum <guido@python.org>
parents: 795
diff changeset
1684 #endif
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diff changeset
1685 op->_ob_next->_ob_prev = op->_ob_prev;
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diff changeset
1686 op->_ob_prev->_ob_next = op->_ob_next;
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diff changeset
1687 op->_ob_next = op->_ob_prev = NULL;
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diff changeset
1688 _Py_INC_TPFREES(op);
86
a6934380c6e7 "Compiling" version
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parents: 58
diff changeset
1689 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
1690
4002
4241582636ad Define reference count admin debug functions to return void.
Guido van Rossum <guido@python.org>
parents: 3986
diff changeset
1691 void
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1692 _Py_Dealloc(PyObject *op)
86
a6934380c6e7 "Compiling" version
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parents: 58
diff changeset
1693 {
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diff changeset
1694 destructor dealloc = Py_TYPE(op)->tp_dealloc;
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diff changeset
1695 _Py_ForgetReference(op);
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diff changeset
1696 (*dealloc)(op);
6
fc6fcd7df4f7 Initial revision
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parents:
diff changeset
1697 }
fc6fcd7df4f7 Initial revision
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diff changeset
1698
28653
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1699 /* Print all live objects. Because PyObject_Print is called, the
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1700 * interpreter must be in a healthy state.
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1701 */
4002
4241582636ad Define reference count admin debug functions to return void.
Guido van Rossum <guido@python.org>
parents: 3986
diff changeset
1702 void
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1703 _Py_PrintReferences(FILE *fp)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1704 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1705 PyObject *op;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1706 fprintf(fp, "Remaining objects:\n");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1707 for (op = refchain._ob_next; op != &refchain; op = op->_ob_next) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1708 fprintf(fp, "%p [%" PY_FORMAT_SIZE_T "d] ", op, op->ob_refcnt);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1709 if (PyObject_Print(op, fp, 0) != 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1710 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1711 putc('\n', fp);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1712 }
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1713 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1714
28653
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1715 /* Print the addresses of all live objects. Unlike _Py_PrintReferences, this
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1716 * doesn't make any calls to the Python C API, so is always safe to call.
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1717 */
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1718 void
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1719 _Py_PrintReferenceAddresses(FILE *fp)
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1720 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1721 PyObject *op;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1722 fprintf(fp, "Remaining object addresses:\n");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1723 for (op = refchain._ob_next; op != &refchain; op = op->_ob_next)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1724 fprintf(fp, "%p [%" PY_FORMAT_SIZE_T "d] %s\n", op,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1725 op->ob_refcnt, Py_TYPE(op)->tp_name);
28653
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1726 }
56006d97bcef _Py_PrintReferences(): Changed to print object address at start of each
Tim Peters <tim.peters@gmail.com>
parents: 28616
diff changeset
1727
3024
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
1728 PyObject *
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1729 _Py_GetObjects(PyObject *self, PyObject *args)
3024
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
1730 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1731 int i, n;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1732 PyObject *t = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1733 PyObject *res, *op;
3024
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
1734
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1735 if (!PyArg_ParseTuple(args, "i|O", &n, &t))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1736 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1737 op = refchain._ob_next;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1738 res = PyList_New(0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1739 if (res == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1740 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1741 for (i = 0; (n == 0 || i < n) && op != &refchain; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1742 while (op == self || op == args || op == res || op == t ||
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1743 (t != NULL && Py_TYPE(op) != (PyTypeObject *) t)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1744 op = op->_ob_next;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1745 if (op == &refchain)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1746 return res;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1747 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1748 if (PyList_Append(res, op) < 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1749 Py_DECREF(res);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1750 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1751 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1752 op = op->_ob_next;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1753 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1754 return res;
3024
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
1755 }
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
1756
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
1757 #endif
3330
9f1b6e2db8e0 Hack to force loading of cobject.o
Guido van Rossum <guido@python.org>
parents: 3024
diff changeset
1758
3574
1ec154241747 TRACE_REFS -> Py_TRACE_REFS.
Guido van Rossum <guido@python.org>
parents: 3330
diff changeset
1759
53816
911df82bc25d add a replacement API for PyCObject, PyCapsule #5630
Benjamin Peterson <benjamin@python.org>
parents: 53274
diff changeset
1760 /* Hack to force loading of pycapsule.o */
911df82bc25d add a replacement API for PyCObject, PyCapsule #5630
Benjamin Peterson <benjamin@python.org>
parents: 53274
diff changeset
1761 PyTypeObject *_PyCapsule_hack = &PyCapsule_Type;
911df82bc25d add a replacement API for PyCObject, PyCapsule #5630
Benjamin Peterson <benjamin@python.org>
parents: 53274
diff changeset
1762
911df82bc25d add a replacement API for PyCObject, PyCapsule #5630
Benjamin Peterson <benjamin@python.org>
parents: 53274
diff changeset
1763
3574
1ec154241747 TRACE_REFS -> Py_TRACE_REFS.
Guido van Rossum <guido@python.org>
parents: 3330
diff changeset
1764 /* Hack to force loading of abstract.o */
36501
7fdc639bc5b4 Merge ssize_t branch.
Martin v. Löwis <martin@v.loewis.de>
parents: 35999
diff changeset
1765 Py_ssize_t (*_Py_abstract_hack)(PyObject *) = PyObject_Size;
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1766
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1767
14006
ed369f0aa32b Updated comment
Andrew M. Kuchling <amk@amk.ca>
parents: 13976
diff changeset
1768 /* Python's malloc wrappers (see pymem.h) */
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1769
13709
4e2aaf1e722a Use 'void' directly instead of the ANY #define, now that all code is ANSI C.
Thomas Wouters <thomas@python.org>
parents: 13620
diff changeset
1770 void *
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1771 PyMem_Malloc(size_t nbytes)
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1772 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1773 return PyMem_MALLOC(nbytes);
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1774 }
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1775
13709
4e2aaf1e722a Use 'void' directly instead of the ANY #define, now that all code is ANSI C.
Thomas Wouters <thomas@python.org>
parents: 13620
diff changeset
1776 void *
4e2aaf1e722a Use 'void' directly instead of the ANY #define, now that all code is ANSI C.
Thomas Wouters <thomas@python.org>
parents: 13620
diff changeset
1777 PyMem_Realloc(void *p, size_t nbytes)
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1778 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1779 return PyMem_REALLOC(p, nbytes);
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1780 }
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1781
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1782 void
13709
4e2aaf1e722a Use 'void' directly instead of the ANY #define, now that all code is ANSI C.
Thomas Wouters <thomas@python.org>
parents: 13620
diff changeset
1783 PyMem_Free(void *p)
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
1784 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1785 PyMem_FREE(p);
12576
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 12481
diff changeset
1786 }
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 12481
diff changeset
1787
1c7c2dd1beb1 Vladimir Marangozov's long-awaited malloc restructuring.
Guido van Rossum <guido@python.org>
parents: 12481
diff changeset
1788
7984
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1789 /* These methods are used to control infinite recursion in repr, str, print,
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1790 etc. Container objects that may recursively contain themselves,
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1791 e.g. builtin dictionaries and lists, should used Py_ReprEnter() and
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1792 Py_ReprLeave() to avoid infinite recursion.
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1793
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1794 Py_ReprEnter() returns 0 the first time it is called for a particular
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1795 object and 1 every time thereafter. It returns -1 if an exception
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1796 occurred. Py_ReprLeave() has no return value.
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1797
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1798 See dictobject.c and listobject.c for examples of use.
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1799 */
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1800
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1801 #define KEY "Py_Repr"
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1802
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1803 int
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1804 Py_ReprEnter(PyObject *obj)
7984
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1805 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1806 PyObject *dict;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1807 PyObject *list;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1808 Py_ssize_t i;
7984
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1809
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1810 dict = PyThreadState_GetDict();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1811 if (dict == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1812 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1813 list = PyDict_GetItemString(dict, KEY);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1814 if (list == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1815 list = PyList_New(0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1816 if (list == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1817 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1818 if (PyDict_SetItemString(dict, KEY, list) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1819 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1820 Py_DECREF(list);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1821 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1822 i = PyList_GET_SIZE(list);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1823 while (--i >= 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1824 if (PyList_GET_ITEM(list, i) == obj)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1825 return 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1826 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1827 PyList_Append(list, obj);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60381
diff changeset
1828 return 0;
7984
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1829 }
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1830
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
1831 void
13473
31b1f691a7d9 ANSI-fication of the sources.
Fred Drake <fdrake@acm.org>
parents: 13447
diff changeset
1832 Py_ReprLeave(PyObject *obj)
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1833 {
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1834 PyObject *dict;
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1835 PyObject *list;
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1836 Py_ssize_t i;
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1837
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1838 dict = PyThreadState_GetDict();
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1839 if (dict == NULL)
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1840 return;
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1841 list = PyDict_GetItemString(dict, KEY);
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1842 if (list == NULL || !PyList_Check(list))
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1843 return;
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1844 i = PyList_GET_SIZE(list);
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1845 /* Count backwards because we always expect obj to be list[-1] */
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1846 while (--i >= 0) {
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1847 if (PyList_GET_ITEM(list, i) == obj) {
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1848 PyList_SetSlice(list, i, i + 1, NULL);
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1849 break;
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1850 }
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1851 }
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1852 }
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c94247b5c355 Christian Tismer's "trashcan" patch:
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1853
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1854 /* Trashcan support. */
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1855
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1856 /* Current call-stack depth of tp_dealloc calls. */
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1857 int _PyTrash_delete_nesting = 0;
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1858
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1859 /* List of objects that still need to be cleaned up, singly linked via their
d332484e394a Trashcan cleanup: Now that cyclic gc is always there, the trashcan
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1860 * gc headers' gc_prev pointers.
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1861 */
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1862 PyObject *_PyTrash_delete_later = NULL;
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1863
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1864 /* Add op to the _PyTrash_delete_later list. Called when the current
d332484e394a Trashcan cleanup: Now that cyclic gc is always there, the trashcan
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1865 * call-stack depth gets large. op must be a currently untracked gc'ed
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1866 * object, with refcount 0. Py_DECREF must already have been called on it.
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1867 */
11999
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1868 void
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Fred Drake <fdrake@acm.org>
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1869 _PyTrash_deposit_object(PyObject *op)
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1870 {
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1871 assert(PyObject_IS_GC(op));
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1872 assert(_Py_AS_GC(op)->gc.gc_refs == _PyGC_REFS_UNTRACKED);
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1873 assert(op->ob_refcnt == 0);
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1874 _Py_AS_GC(op)->gc.gc_prev = (PyGC_Head *)_PyTrash_delete_later;
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1875 _PyTrash_delete_later = op;
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1876 }
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1877
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1878 /* Dealloccate all the objects in the _PyTrash_delete_later list. Called when
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1879 * the call-stack unwinds again.
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1880 */
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1881 void
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1882 _PyTrash_destroy_chain(void)
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1883 {
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1884 while (_PyTrash_delete_later) {
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1885 PyObject *op = _PyTrash_delete_later;
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1886 destructor dealloc = Py_TYPE(op)->tp_dealloc;
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1887
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1888 _PyTrash_delete_later =
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1889 (PyObject*) _Py_AS_GC(op)->gc.gc_prev;
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1890
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1891 /* Call the deallocator directly. This used to try to
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1892 * fool Py_DECREF into calling it indirectly, but
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1893 * Py_DECREF was already called on this object, and in
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1894 * assorted non-release builds calling Py_DECREF again ends
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1895 * up distorting allocation statistics.
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1896 */
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1897 assert(op->ob_refcnt == 0);
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1898 ++_PyTrash_delete_nesting;
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1899 (*dealloc)(op);
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1900 --_PyTrash_delete_nesting;
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1901 }
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1902 }
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1903
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1904 #ifdef __cplusplus
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1905 }
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1906 #endif