Mercurial > cpython-lru_cache-weakref

annotate Objects/object.c @ 12357:5b59ea41db4e legacy-trunk

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Install the docs (with fewer rules). Add descriptions for the system variables.
author Guido van Rossum <guido@python.org>
date Mon, 10 Apr 2000 19:36:27 +0000
parents 66b4906d0fc6
children ec6b6ca5d111
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1 /***********************************************************
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2 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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3 The Netherlands.
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4
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5 All Rights Reserved
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6
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7 Permission to use, copy, modify, and distribute this software and its
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8 documentation for any purpose and without fee is hereby granted,
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9 provided that the above copyright notice appear in all copies and that
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10 both that copyright notice and this permission notice appear in
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11 supporting documentation, and that the names of Stichting Mathematisch
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12 Centrum or CWI or Corporation for National Research Initiatives or
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13 CNRI not be used in advertising or publicity pertaining to
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14 distribution of the software without specific, written prior
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15 permission.
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16
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17 While CWI is the initial source for this software, a modified version
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18 is made available by the Corporation for National Research Initiatives
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19 (CNRI) at the Internet address ftp://ftp.python.org.
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20
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21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
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22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
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24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
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25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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28 PERFORMANCE OF THIS SOFTWARE.
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29
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30 ******************************************************************/
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31
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32 /* Generic object operations; and implementation of None (NoObject) */
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33
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34 #include "Python.h"
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35
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36 #if defined( Py_TRACE_REFS ) || defined( Py_REF_DEBUG )
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37 DL_IMPORT(long) _Py_RefTotal;
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38 #endif
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39
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40 /* Object allocation routines used by NEWOBJ and NEWVAROBJ macros.
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41 These are used by the individual routines for object creation.
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42 Do not call them otherwise, they do not initialize the object! */
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43
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44 #ifdef COUNT_ALLOCS
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45 static PyTypeObject *type_list;
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46 extern int tuple_zero_allocs, fast_tuple_allocs;
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47 extern int quick_int_allocs, quick_neg_int_allocs;
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48 extern int null_strings, one_strings;
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49 void
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50 dump_counts()
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51 {
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52 PyTypeObject *tp;
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53
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54 for (tp = type_list; tp; tp = tp->tp_next)
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55 fprintf(stderr, "%s alloc'd: %d, freed: %d, max in use: %d\n",
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56 tp->tp_name, tp->tp_alloc, tp->tp_free,
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57 tp->tp_maxalloc);
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58 fprintf(stderr, "fast tuple allocs: %d, empty: %d\n",
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59 fast_tuple_allocs, tuple_zero_allocs);
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60 fprintf(stderr, "fast int allocs: pos: %d, neg: %d\n",
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61 quick_int_allocs, quick_neg_int_allocs);
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62 fprintf(stderr, "null strings: %d, 1-strings: %d\n",
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63 null_strings, one_strings);
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64 }
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65
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66 PyObject *
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67 get_counts()
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68 {
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69 PyTypeObject *tp;
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70 PyObject *result;
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71 PyObject *v;
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72
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73 result = PyList_New(0);
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74 if (result == NULL)
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75 return NULL;
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76 for (tp = type_list; tp; tp = tp->tp_next) {
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77 v = Py_BuildValue("(siii)", tp->tp_name, tp->tp_alloc,
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78 tp->tp_free, tp->tp_maxalloc);
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79 if (v == NULL) {
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80 Py_DECREF(result);
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81 return NULL;
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82 }
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83 if (PyList_Append(result, v) < 0) {
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84 Py_DECREF(v);
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85 Py_DECREF(result);
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86 return NULL;
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87 }
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88 Py_DECREF(v);
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89 }
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90 return result;
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91 }
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92
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93 void
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94 inc_count(tp)
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95 PyTypeObject *tp;
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96 {
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97 if (tp->tp_alloc == 0) {
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98 /* first time; insert in linked list */
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99 if (tp->tp_next != NULL) /* sanity check */
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100 Py_FatalError("XXX inc_count sanity check");
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101 tp->tp_next = type_list;
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102 type_list = tp;
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103 }
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104 tp->tp_alloc++;
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105 if (tp->tp_alloc - tp->tp_free > tp->tp_maxalloc)
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106 tp->tp_maxalloc = tp->tp_alloc - tp->tp_free;
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107 }
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108 #endif
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109
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110 #ifndef MS_COREDLL
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111 PyObject *
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112 _PyObject_New(tp)
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113 PyTypeObject *tp;
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114 #else
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115 PyObject *
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116 _PyObject_New(tp,op)
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117 PyTypeObject *tp;
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118 PyObject *op;
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119 #endif
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120 {
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121 #ifndef MS_COREDLL
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122 PyObject *op = (PyObject *) malloc(tp->tp_basicsize);
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123 #endif
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124 if (op == NULL)
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125 return PyErr_NoMemory();
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126 op->ob_type = tp;
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127 _Py_NewReference(op);
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128 return op;
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129 }
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130
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131 #ifndef MS_COREDLL
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132 PyVarObject *
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133 _PyObject_NewVar(tp, size)
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134 PyTypeObject *tp;
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135 int size;
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136 #else
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137 PyVarObject *
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138 _PyObject_NewVar(tp, size, op)
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139 PyTypeObject *tp;
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140 int size;
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141 PyVarObject *op;
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142 #endif
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143 {
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144 #ifndef MS_COREDLL
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145 PyVarObject *op = (PyVarObject *)
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146 malloc(tp->tp_basicsize + size * tp->tp_itemsize);
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147 #endif
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148 if (op == NULL)
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149 return (PyVarObject *)PyErr_NoMemory();
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150 op->ob_type = tp;
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151 op->ob_size = size;
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152 _Py_NewReference((PyObject *)op);
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153 return op;
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154 }
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155
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156 int
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157 PyObject_Print(op, fp, flags)
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158 PyObject *op;
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159 FILE *fp;
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160 int flags;
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161 {
322
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162 int ret = 0;
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163 if (PyErr_CheckSignals())
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164 return -1;
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165 #ifdef USE_STACKCHECK
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166 if (PyOS_CheckStack()) {
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167 PyErr_SetString(PyExc_MemoryError, "Stack overflow");
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168 return -1;
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169 }
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170 #endif
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171 clearerr(fp); /* Clear any previous error condition */
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172 if (op == NULL) {
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173 fprintf(fp, "<nil>");
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174 }
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175 else {
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176 if (op->ob_refcnt <= 0)
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177 fprintf(fp, "<refcnt %u at %lx>",
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178 op->ob_refcnt, (long)op);
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179 else if (op->ob_type->tp_print == NULL) {
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180 if (op->ob_type->tp_repr == NULL) {
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181 fprintf(fp, "<%s object at %lx>",
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182 op->ob_type->tp_name, (long)op);
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183 }
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184 else {
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185 PyObject *s;
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186 if (flags & Py_PRINT_RAW)
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187 s = PyObject_Str(op);
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188 else
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189 s = PyObject_Repr(op);
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190 if (s == NULL)
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191 ret = -1;
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192 else {
8111
5c9be98f5347 Be less naive about null characters in an object's repr().
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193 ret = PyObject_Print(s, fp,
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194 Py_PRINT_RAW);
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195 }
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196 Py_XDECREF(s);
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197 }
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198 }
284
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199 else
322
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200 ret = (*op->ob_type->tp_print)(op, fp, flags);
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201 }
322
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202 if (ret == 0) {
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203 if (ferror(fp)) {
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204 PyErr_SetFromErrno(PyExc_IOError);
322
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205 clearerr(fp);
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206 ret = -1;
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207 }
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208 }
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209 return ret;
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210 }
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211
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212 PyObject *
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213 PyObject_Repr(v)
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214 PyObject *v;
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215 {
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216 if (PyErr_CheckSignals())
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217 return NULL;
8181
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218 #ifdef USE_STACKCHECK
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219 if (PyOS_CheckStack()) {
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220 PyErr_SetString(PyExc_MemoryError, "Stack overflow");
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221 return NULL;
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222 }
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223 #endif
284
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224 if (v == NULL)
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225 return PyString_FromString("<NULL>");
284
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diff changeset
226 else if (v->ob_type->tp_repr == NULL) {
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diff changeset
227 char buf[120];
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diff changeset
228 sprintf(buf, "<%.80s object at %lx>",
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229 v->ob_type->tp_name, (long)v);
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230 return PyString_FromString(buf);
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231 }
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232 else {
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233 PyObject *res;
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234 res = (*v->ob_type->tp_repr)(v);
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235 if (res == NULL)
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236 return NULL;
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237 if (!PyString_Check(res)) {
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238 PyErr_Format(PyExc_TypeError,
12320
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239 "__repr__ returned non-string (type %.200s)",
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240 res->ob_type->tp_name);
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241 Py_DECREF(res);
74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg.
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242 return NULL;
74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg.
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243 }
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244 return res;
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245 }
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246 }
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247
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248 PyObject *
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249 PyObject_Str(v)
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250 PyObject *v;
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aac8231a715c * mpzmodule.c: removed redundant mpz_print function.
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251 {
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252 PyObject *res;
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253
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254 if (v == NULL)
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255 return PyString_FromString("<NULL>");
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256 else if (PyString_Check(v)) {
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257 Py_INCREF(v);
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258 return v;
aac8231a715c * mpzmodule.c: removed redundant mpz_print function.
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259 }
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899b4e3dfd4c fix strobject() behavior
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260 else if (v->ob_type->tp_str != NULL)
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261 res = (*v->ob_type->tp_str)(v);
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262 else {
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263 PyObject *func;
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264 if (!PyInstance_Check(v) ||
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265 (func = PyObject_GetAttrString(v, "__str__")) == NULL) {
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266 PyErr_Clear();
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267 return PyObject_Repr(v);
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268 }
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269 res = PyEval_CallObject(func, (PyObject *)NULL);
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270 Py_DECREF(func);
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271 }
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272 if (res == NULL)
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273 return NULL;
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274 if (!PyString_Check(res)) {
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275 PyErr_Format(PyExc_TypeError,
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276 "__str__ returned non-string (type %.200s)",
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277 res->ob_type->tp_name);
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278 Py_DECREF(res);
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279 return NULL;
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diff changeset
280 }
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281 return res;
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diff changeset
282 }
aac8231a715c * mpzmodule.c: removed redundant mpz_print function.
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283
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284 static PyObject *
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285 do_cmp(v, w)
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286 PyObject *v, *w;
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287 {
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288 long c;
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289 /* __rcmp__ actually won't be called unless __cmp__ isn't defined,
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290 because the check in cmpobject() reverses the objects first.
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291 This is intentional -- it makes no sense to define cmp(x,y)
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292 different than -cmp(y,x). */
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293 if (PyInstance_Check(v) || PyInstance_Check(w))
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294 return PyInstance_DoBinOp(v, w, "__cmp__", "__rcmp__", do_cmp);
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295 c = PyObject_Compare(v, w);
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296 if (c && PyErr_Occurred())
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297 return NULL;
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298 return PyInt_FromLong(c);
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299 }
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300
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301 int
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302 PyObject_Compare(v, w)
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303 PyObject *v, *w;
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304 {
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305 PyTypeObject *vtp, *wtp;
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306 if (v == NULL || w == NULL) {
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307 PyErr_BadInternalCall();
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308 return -1;
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309 }
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310 if (v == w)
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311 return 0;
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312 if (PyInstance_Check(v) || PyInstance_Check(w)) {
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313 PyObject *res;
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314 int c;
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315 if (!PyInstance_Check(v))
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316 return -PyObject_Compare(w, v);
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317 res = do_cmp(v, w);
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318 if (res == NULL)
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319 return -1;
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320 if (!PyInt_Check(res)) {
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321 Py_DECREF(res);
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322 PyErr_SetString(PyExc_TypeError,
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323 "comparison did not return an int");
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324 return -1;
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325 }
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326 c = PyInt_AsLong(res);
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327 Py_DECREF(res);
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328 return (c < 0) ? -1 : (c > 0) ? 1 : 0;
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329 }
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330 if ((vtp = v->ob_type) != (wtp = w->ob_type)) {
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331 char *vname = vtp->tp_name;
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332 char *wname = wtp->tp_name;
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333 if (vtp->tp_as_number != NULL && wtp->tp_as_number != NULL) {
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334 int err;
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335 err = PyNumber_CoerceEx(&v, &w);
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336 if (err < 0)
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337 return -1;
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338 else if (err == 0) {
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339 int cmp;
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340 vtp = v->ob_type;
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341 if (vtp->tp_compare == NULL)
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342 cmp = (v < w) ? -1 : 1;
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343 else
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344 cmp = (*vtp->tp_compare)(v, w);
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345 Py_DECREF(v);
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346 Py_DECREF(w);
307
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347 return cmp;
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348 }
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349 }
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350 else if (PyUnicode_Check(v) || PyUnicode_Check(w)) {
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351 int result = PyUnicode_Compare(v, w);
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352 if (result == -1 && PyErr_Occurred() &&
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353 PyErr_ExceptionMatches(PyExc_TypeError))
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354 /* TypeErrors are ignored: if Unicode coercion
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355 fails due to one of the arguments not
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356 having the right type, we continue as
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357 defined by the coercion protocol (see
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358 above). Luckily, decoding errors are
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359 reported as ValueErrors and are not masked
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360 by this technique. */
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361 PyErr_Clear();
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362 else
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363 return result;
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364 }
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365 else if (vtp->tp_as_number != NULL)
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366 vname = "";
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367 else if (wtp->tp_as_number != NULL)
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368 wname = "";
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369 /* Numerical types compare smaller than all other types */
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370 return strcmp(vname, wname);
307
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371 }
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372 if (vtp->tp_compare == NULL)
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373 return (v < w) ? -1 : 1;
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374 return (*vtp->tp_compare)(v, w);
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375 }
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376
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377 long
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378 PyObject_Hash(v)
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379 PyObject *v;
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380 {
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381 PyTypeObject *tp = v->ob_type;
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382 if (tp->tp_hash != NULL)
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383 return (*tp->tp_hash)(v);
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384 if (tp->tp_compare == NULL)
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385 return (long) v; /* Use address as hash value */
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386 /* If there's a cmp but no hash defined, the object can't be hashed */
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387 PyErr_SetString(PyExc_TypeError, "unhashable type");
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388 return -1;
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389 }
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390
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391 PyObject *
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392 PyObject_GetAttrString(v, name)
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393 PyObject *v;
86
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394 char *name;
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395 {
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9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
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396 if (v->ob_type->tp_getattro != NULL) {
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397 PyObject *w, *res;
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5f4b23e3d97c Intern the strings created in getattr() and setattr().
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398 w = PyString_InternFromString(name);
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399 if (w == NULL)
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400 return NULL;
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401 res = (*v->ob_type->tp_getattro)(v, w);
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402 Py_XDECREF(w);
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403 return res;
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diff changeset
404 }
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diff changeset
405
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406 if (v->ob_type->tp_getattr == NULL) {
7119
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diff changeset
407 PyErr_Format(PyExc_AttributeError,
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diff changeset
408 "'%.50s' object has no attribute '%.400s'",
516189984b0c Instead of "attribute-less object", issue an error message that
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diff changeset
409 v->ob_type->tp_name,
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diff changeset
410 name);
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411 return NULL;
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diff changeset
412 }
a6934380c6e7 "Compiling" version
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413 else {
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414 return (*v->ob_type->tp_getattr)(v, name);
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415 }
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416 }
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417
a6934380c6e7 "Compiling" version
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diff changeset
418 int
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419 PyObject_HasAttrString(v, name)
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420 PyObject *v;
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421 char *name;
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422 {
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423 PyObject *res = PyObject_GetAttrString(v, name);
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424 if (res != NULL) {
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425 Py_DECREF(res);
1324
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
426 return 1;
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
427 }
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
428 PyErr_Clear();
1324
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
429 return 0;
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
430 }
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
431
716be765a79b * accessobject.c (ownercheck): allow a base class access to protected
Guido van Rossum <guido@python.org>
parents: 1282
diff changeset
432 int
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
433 PyObject_SetAttrString(v, name, w)
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
434 PyObject *v;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
435 char *name;
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
436 PyObject *w;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
437 {
3986
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
438 if (v->ob_type->tp_setattro != NULL) {
5396
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
439 PyObject *s;
3986
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
440 int res;
5006
5f4b23e3d97c Intern the strings created in getattr() and setattr().
Guido van Rossum <guido@python.org>
parents: 4588
diff changeset
441 s = PyString_InternFromString(name);
3986
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
442 if (s == NULL)
4288
43ae045aa10e Correct typo in setattr: return -1 for error, not NULL
Guido van Rossum <guido@python.org>
parents: 4002
diff changeset
443 return -1;
3986
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
444 res = (*v->ob_type->tp_setattro)(v, s, w);
5396
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
445 Py_XDECREF(s);
3986
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
446 return res;
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
447 }
9c2cbf306864 Support for tp_getattro, tp_setattro (Sjoerd)
Guido van Rossum <guido@python.org>
parents: 3770
diff changeset
448
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
449 if (v->ob_type->tp_setattr == NULL) {
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
450 if (v->ob_type->tp_getattr == NULL)
5396
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
451 PyErr_SetString(PyExc_TypeError,
512
8414e1f9a5fe Change error messages for impossible assignment slightly.
Guido van Rossum <guido@python.org>
parents: 473
diff changeset
452 "attribute-less object (assign or del)");
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
453 else
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
454 PyErr_SetString(PyExc_TypeError,
512
8414e1f9a5fe Change error messages for impossible assignment slightly.
Guido van Rossum <guido@python.org>
parents: 473
diff changeset
455 "object has read-only attributes");
95
a5bf7d5959ce Return -1 for errors.
Guido van Rossum <guido@python.org>
parents: 86
diff changeset
456 return -1;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
457 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
458 else {
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
459 return (*v->ob_type->tp_setattr)(v, name, w);
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
460 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
461 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
462
5560
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
463 PyObject *
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
464 PyObject_GetAttr(v, name)
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
465 PyObject *v;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
466 PyObject *name;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
467 {
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
468 if (v->ob_type->tp_getattro != NULL)
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
469 return (*v->ob_type->tp_getattro)(v, name);
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
470 else
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
471 return PyObject_GetAttrString(v, PyString_AsString(name));
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
472 }
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
473
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
474 int
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
475 PyObject_HasAttr(v, name)
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
476 PyObject *v;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
477 PyObject *name;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
478 {
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
479 PyObject *res = PyObject_GetAttr(v, name);
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
480 if (res != NULL) {
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
481 Py_DECREF(res);
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
482 return 1;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
483 }
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
484 PyErr_Clear();
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
485 return 0;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
486 }
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
487
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
488 int
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
489 PyObject_SetAttr(v, name, value)
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
490 PyObject *v;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
491 PyObject *name;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
492 PyObject *value;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
493 {
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
494 int err;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
495 Py_INCREF(name);
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
496 PyString_InternInPlace(&name);
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
497 if (v->ob_type->tp_setattro != NULL)
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
498 err = (*v->ob_type->tp_setattro)(v, name, value);
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
499 else
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
500 err = PyObject_SetAttrString(
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
501 v, PyString_AsString(name), value);
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
502 Py_DECREF(name);
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
503 return err;
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
504 }
8ec298b255a2 Moved PyObject_{Get,Set}Attr here (from dictobject) and add PyObject_HasAttr.
Guido van Rossum <guido@python.org>
parents: 5535
diff changeset
505
1282
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
506 /* 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
507 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
508
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
509 int
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
510 PyObject_IsTrue(v)
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
511 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
512 {
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
513 int res;
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
514 if (v == Py_None)
1282
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
515 res = 0;
8404
64b88a178328 In PyObject_IsTrue(), don't call function pointers that are NULL
Guido van Rossum <guido@python.org>
parents: 8181
diff changeset
516 else if (v->ob_type->tp_as_number != NULL &&
64b88a178328 In PyObject_IsTrue(), don't call function pointers that are NULL
Guido van Rossum <guido@python.org>
parents: 8181
diff changeset
517 v->ob_type->tp_as_number->nb_nonzero != NULL)
1282
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
518 res = (*v->ob_type->tp_as_number->nb_nonzero)(v);
8404
64b88a178328 In PyObject_IsTrue(), don't call function pointers that are NULL
Guido van Rossum <guido@python.org>
parents: 8181
diff changeset
519 else if (v->ob_type->tp_as_mapping != NULL &&
64b88a178328 In PyObject_IsTrue(), don't call function pointers that are NULL
Guido van Rossum <guido@python.org>
parents: 8181
diff changeset
520 v->ob_type->tp_as_mapping->mp_length != NULL)
1282
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
521 res = (*v->ob_type->tp_as_mapping->mp_length)(v);
8404
64b88a178328 In PyObject_IsTrue(), don't call function pointers that are NULL
Guido van Rossum <guido@python.org>
parents: 8181
diff changeset
522 else if (v->ob_type->tp_as_sequence != NULL &&
64b88a178328 In PyObject_IsTrue(), don't call function pointers that are NULL
Guido van Rossum <guido@python.org>
parents: 8181
diff changeset
523 v->ob_type->tp_as_sequence->sq_length != NULL)
1282
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
524 res = (*v->ob_type->tp_as_sequence->sq_length)(v);
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
525 else
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
526 res = 1;
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
527 if (res > 0)
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
528 res = 1;
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
529 return res;
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
530 }
e0464e7115ca * pythonrun.c: Print exception type+arg *after* stack trace instead of
Guido van Rossum <guido@python.org>
parents: 1257
diff changeset
531
7935
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
532 /* equivalent of 'not v'
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
533 Return -1 if an error occurred */
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
534
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
535 int
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
536 PyObject_Not(v)
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
537 PyObject *v;
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
538 {
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
539 int res;
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
540 res = PyObject_IsTrue(v);
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
541 if (res < 0)
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
542 return res;
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
543 return res == 0;
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
544 }
aa7d69d67c81 Add PyObject_Not().
Guido van Rossum <guido@python.org>
parents: 7119
diff changeset
545
2113
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
546 /* Coerce two numeric types to the "larger" one.
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
547 Increment the reference count on each argument.
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
548 Return -1 and raise an exception if no coercion is possible
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
549 (and then no reference count is incremented).
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
550 */
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
551
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
552 int
6597
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
553 PyNumber_CoerceEx(pv, pw)
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
554 PyObject **pv, **pw;
2113
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
555 {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
556 register PyObject *v = *pv;
d1447950fa04 Quickly renamed the last directory.
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parents: 5006
diff changeset
557 register PyObject *w = *pw;
2113
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
558 int res;
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
559
5396
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parents: 5006
diff changeset
560 if (v->ob_type == w->ob_type && !PyInstance_Check(v)) {
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parents: 5006
diff changeset
561 Py_INCREF(v);
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
562 Py_INCREF(w);
2113
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
563 return 0;
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
564 }
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
565 if (v->ob_type->tp_as_number && v->ob_type->tp_as_number->nb_coerce) {
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
566 res = (*v->ob_type->tp_as_number->nb_coerce)(pv, pw);
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
567 if (res <= 0)
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
568 return res;
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
569 }
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
570 if (w->ob_type->tp_as_number && w->ob_type->tp_as_number->nb_coerce) {
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
571 res = (*w->ob_type->tp_as_number->nb_coerce)(pw, pv);
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
572 if (res <= 0)
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
573 return res;
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
574 }
6597
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
575 return 1;
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
576 }
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
577
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
578 int
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
579 PyNumber_Coerce(pv, pw)
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
580 PyObject **pv, **pw;
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
581 {
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
582 int err = PyNumber_CoerceEx(pv, pw);
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
583 if (err <= 0)
b88fd3894d5a Add a new function PyNumber_CoerceEx() which works just like
Guido van Rossum <guido@python.org>
parents: 5981
diff changeset
584 return err;
5396
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parents: 5006
diff changeset
585 PyErr_SetString(PyExc_TypeError, "number coercion failed");
2113
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
586 return -1;
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
587 }
76c860a18d82 move coerce() from bltinmodule.c to object.c and implement builtin_coerce() differently
Guido van Rossum <guido@python.org>
parents: 2079
diff changeset
588
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
589
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
590 /* Test whether an object can be called */
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
591
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
592 int
5396
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parents: 5006
diff changeset
593 PyCallable_Check(x)
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diff changeset
594 PyObject *x;
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
595 {
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
596 if (x == NULL)
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
597 return 0;
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
598 if (x->ob_type->tp_call != NULL ||
5396
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parents: 5006
diff changeset
599 PyFunction_Check(x) ||
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parents: 5006
diff changeset
600 PyMethod_Check(x) ||
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parents: 5006
diff changeset
601 PyCFunction_Check(x) ||
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diff changeset
602 PyClass_Check(x))
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
603 return 1;
5396
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parents: 5006
diff changeset
604 if (PyInstance_Check(x)) {
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
605 PyObject *call = PyObject_GetAttrString(x, "__call__");
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
606 if (call == NULL) {
5396
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
607 PyErr_Clear();
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
608 return 0;
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
609 }
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
610 /* Could test recursively but don't, for fear of endless
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
611 recursion if some joker sets self.__call__ = self */
5396
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
612 Py_DECREF(call);
2237
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
613 return 1;
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
614 }
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
615 return 0;
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
616 }
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
617
0b0b18d655d2 move callable() here
Guido van Rossum <guido@python.org>
parents: 2160
diff changeset
618
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
619 /*
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
620 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
621 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
622 so there is exactly one (which is indestructible, by the way).
6
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Guido van Rossum <guido@python.org>
parents:
diff changeset
623 */
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
624
739
ab1b3486b226 Fix lint bug
Guido van Rossum <guido@python.org>
parents: 512
diff changeset
625 /* ARGSUSED */
5396
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parents: 5006
diff changeset
626 static PyObject *
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
627 none_repr(op)
5396
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diff changeset
628 PyObject *op;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
629 {
5396
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diff changeset
630 return PyString_FromString("None");
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
631 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
632
5396
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parents: 5006
diff changeset
633 static PyTypeObject PyNothing_Type = {
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diff changeset
634 PyObject_HEAD_INIT(&PyType_Type)
6
fc6fcd7df4f7 Initial revision
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parents:
diff changeset
635 0,
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
636 "None",
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
637 0,
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
638 0,
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
639 0, /*tp_dealloc*/ /*never called*/
1051
f54e64c8b9b7 * Makefile: added IMGFILE; moved some stuff around.
Guido van Rossum <guido@python.org>
parents: 1017
diff changeset
640 0, /*tp_print*/
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
641 0, /*tp_getattr*/
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
642 0, /*tp_setattr*/
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
643 0, /*tp_compare*/
1848
b724599401ff Merge back to main trunk
Guido van Rossum <guido@python.org>
parents: 1400
diff changeset
644 (reprfunc)none_repr, /*tp_repr*/
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
645 0, /*tp_as_number*/
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
646 0, /*tp_as_sequence*/
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
647 0, /*tp_as_mapping*/
1257
1cabc2b6c970 * Changed all copyright messages to include 1993.
Guido van Rossum <guido@python.org>
parents: 1051
diff changeset
648 0, /*tp_hash */
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
649 };
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
650
5396
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
651 PyObject _Py_NoneStruct = {
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parents: 5006
diff changeset
652 PyObject_HEAD_INIT(&PyNothing_Type)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
653 };
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
654
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
655
3574
1ec154241747 TRACE_REFS -> Py_TRACE_REFS.
Guido van Rossum <guido@python.org>
parents: 3330
diff changeset
656 #ifdef Py_TRACE_REFS
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
657
5396
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parents: 5006
diff changeset
658 static PyObject refchain = {&refchain, &refchain};
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
659
4002
4241582636ad Define reference count admin debug functions to return void.
Guido van Rossum <guido@python.org>
parents: 3986
diff changeset
660 void
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
661 _Py_ResetReferences()
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
662 {
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
663 refchain._ob_prev = refchain._ob_next = &refchain;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
664 _Py_RefTotal = 0;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
665 }
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
666
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
667 void
5396
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diff changeset
668 _Py_NewReference(op)
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diff changeset
669 PyObject *op;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
670 {
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diff changeset
671 _Py_RefTotal++;
6
fc6fcd7df4f7 Initial revision
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diff changeset
672 op->ob_refcnt = 1;
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
673 op->_ob_next = refchain._ob_next;
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
674 op->_ob_prev = &refchain;
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
675 refchain._ob_next->_ob_prev = op;
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
676 refchain._ob_next = op;
1347
a22a350d3a5d * Extended X interface: pixmap objects, colormap objects visual objects,
Sjoerd Mullender <sjoerd@acm.org>
parents: 1324
diff changeset
677 #ifdef COUNT_ALLOCS
a22a350d3a5d * Extended X interface: pixmap objects, colormap objects visual objects,
Sjoerd Mullender <sjoerd@acm.org>
parents: 1324
diff changeset
678 inc_count(op->ob_type);
a22a350d3a5d * Extended X interface: pixmap objects, colormap objects visual objects,
Sjoerd Mullender <sjoerd@acm.org>
parents: 1324
diff changeset
679 #endif
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
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diff changeset
680 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
681
4002
4241582636ad Define reference count admin debug functions to return void.
Guido van Rossum <guido@python.org>
parents: 3986
diff changeset
682 void
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diff changeset
683 _Py_ForgetReference(op)
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diff changeset
684 register PyObject *op;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
685 {
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
686 #ifdef SLOW_UNREF_CHECK
11969
74b7213fb609 Many changes for Unicode, by Marc-Andre Lemburg.
Guido van Rossum <guido@python.org>
parents: 11673
diff changeset
687 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
688 #endif
2053
de49d49044d7 Lots of minor changes. Note for mappingobject.c: the hash table pointer
Guido van Rossum <guido@python.org>
parents: 1869
diff changeset
689 if (op->ob_refcnt < 0)
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parents: 5006
diff changeset
690 Py_FatalError("UNREF negative refcnt");
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
691 if (op == &refchain ||
2053
de49d49044d7 Lots of minor changes. Note for mappingobject.c: the hash table pointer
Guido van Rossum <guido@python.org>
parents: 1869
diff changeset
692 op->_ob_prev->_ob_next != op || op->_ob_next->_ob_prev != op)
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Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
693 Py_FatalError("UNREF invalid 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
694 #ifdef SLOW_UNREF_CHECK
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
695 for (p = refchain._ob_next; p != &refchain; p = p->_ob_next) {
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
696 if (p == op)
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
697 break;
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
698 }
2053
de49d49044d7 Lots of minor changes. Note for mappingobject.c: the hash table pointer
Guido van Rossum <guido@python.org>
parents: 1869
diff changeset
699 if (p == &refchain) /* Not found */
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diff changeset
700 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
701 #endif
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
702 op->_ob_next->_ob_prev = op->_ob_prev;
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
703 op->_ob_prev->_ob_next = op->_ob_next;
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
704 op->_ob_next = op->_ob_prev = NULL;
2639
f11ba9cc342f change in counting freed objects
Guido van Rossum <guido@python.org>
parents: 2612
diff changeset
705 #ifdef COUNT_ALLOCS
f11ba9cc342f change in counting freed objects
Guido van Rossum <guido@python.org>
parents: 2612
diff changeset
706 op->ob_type->tp_free++;
f11ba9cc342f change in counting freed objects
Guido van Rossum <guido@python.org>
parents: 2612
diff changeset
707 #endif
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
708 }
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
709
4002
4241582636ad Define reference count admin debug functions to return void.
Guido van Rossum <guido@python.org>
parents: 3986
diff changeset
710 void
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
711 _Py_Dealloc(op)
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
712 PyObject *op;
86
a6934380c6e7 "Compiling" version
Guido van Rossum <guido@python.org>
parents: 58
diff changeset
713 {
1869
2cede61e9b1b rearranged code in debugging version of DELREF to avoid touching data
Guido van Rossum <guido@python.org>
parents: 1848
diff changeset
714 destructor dealloc = op->ob_type->tp_dealloc;
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
715 _Py_ForgetReference(op);
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
716 op->ob_type = NULL;
1869
2cede61e9b1b rearranged code in debugging version of DELREF to avoid touching data
Guido van Rossum <guido@python.org>
parents: 1848
diff changeset
717 (*dealloc)(op);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
718 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
719
4002
4241582636ad Define reference count admin debug functions to return void.
Guido van Rossum <guido@python.org>
parents: 3986
diff changeset
720 void
3609
0b0c4ed1936a rename printrefs, getobjects to _Py_ prefix
Guido van Rossum <guido@python.org>
parents: 3574
diff changeset
721 _Py_PrintReferences(fp)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
722 FILE *fp;
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
723 {
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
724 PyObject *op;
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
725 fprintf(fp, "Remaining objects:\n");
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
726 for (op = refchain._ob_next; op != &refchain; op = op->_ob_next) {
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
727 fprintf(fp, "[%d] ", op->ob_refcnt);
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
728 if (PyObject_Print(op, fp, 0) != 0)
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
729 PyErr_Clear();
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
730 putc('\n', fp);
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
731 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
732 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
733
3024
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
734 PyObject *
3609
0b0c4ed1936a rename printrefs, getobjects to _Py_ prefix
Guido van Rossum <guido@python.org>
parents: 3574
diff changeset
735 _Py_GetObjects(self, args)
3024
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
736 PyObject *self;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
737 PyObject *args;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
738 {
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
739 int i, n;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
740 PyObject *t = NULL;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
741 PyObject *res, *op;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
742
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
743 if (!PyArg_ParseTuple(args, "i|O", &n, &t))
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
744 return NULL;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
745 op = refchain._ob_next;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
746 res = PyList_New(0);
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
747 if (res == NULL)
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
748 return NULL;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
749 for (i = 0; (n == 0 || i < n) && op != &refchain; i++) {
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
750 while (op == self || op == args || op == res || op == t ||
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
751 t != NULL && op->ob_type != (PyTypeObject *) t) {
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
752 op = op->_ob_next;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
753 if (op == &refchain)
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
754 return res;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
755 }
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
756 if (PyList_Append(res, op) < 0) {
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
757 Py_DECREF(res);
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
758 return NULL;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
759 }
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
760 op = op->_ob_next;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
761 }
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
762 return res;
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
763 }
54aa87b1ccee Implemented two new functions in sys:
Sjoerd Mullender <sjoerd@acm.org>
parents: 2827
diff changeset
764
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
765 #endif
3330
9f1b6e2db8e0 Hack to force loading of cobject.o
Guido van Rossum <guido@python.org>
parents: 3024
diff changeset
766
9f1b6e2db8e0 Hack to force loading of cobject.o
Guido van Rossum <guido@python.org>
parents: 3024
diff changeset
767
9f1b6e2db8e0 Hack to force loading of cobject.o
Guido van Rossum <guido@python.org>
parents: 3024
diff changeset
768 /* Hack to force loading of cobject.o */
4588
4dc67fdd9e0b Make gcc -Wall happy
Guido van Rossum <guido@python.org>
parents: 4503
diff changeset
769 PyTypeObject *_Py_cobject_hack = &PyCObject_Type;
3574
1ec154241747 TRACE_REFS -> Py_TRACE_REFS.
Guido van Rossum <guido@python.org>
parents: 3330
diff changeset
770
1ec154241747 TRACE_REFS -> Py_TRACE_REFS.
Guido van Rossum <guido@python.org>
parents: 3330
diff changeset
771
1ec154241747 TRACE_REFS -> Py_TRACE_REFS.
Guido van Rossum <guido@python.org>
parents: 3330
diff changeset
772 /* Hack to force loading of abstract.o */
5396
d1447950fa04 Quickly renamed the last directory.
Guido van Rossum <guido@python.org>
parents: 5006
diff changeset
773 int (*_Py_abstract_hack) Py_FPROTO((PyObject *)) = &PyObject_Length;
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
774
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
775
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
776 /* Malloc wrappers (see mymalloc.h) */
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
777
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
778 /* The Py_{Malloc,Realloc} wrappers call PyErr_NoMemory() on failure */
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
779
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
780 ANY *
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
781 Py_Malloc(nbytes)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
782 size_t nbytes;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
783 {
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
784 ANY *p;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
785 #if _PyMem_EXTRA > 0
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
786 if (nbytes == 0)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
787 nbytes = _PyMem_EXTRA;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
788 #endif
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
789 p = malloc(nbytes);
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
790 if (p != NULL)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
791 return p;
5981
170c46a65022 Fix mixup about PyErr_NoMemory() prototype.
Guido van Rossum <guido@python.org>
parents: 5931
diff changeset
792 else {
170c46a65022 Fix mixup about PyErr_NoMemory() prototype.
Guido van Rossum <guido@python.org>
parents: 5931
diff changeset
793 PyErr_NoMemory();
170c46a65022 Fix mixup about PyErr_NoMemory() prototype.
Guido van Rossum <guido@python.org>
parents: 5931
diff changeset
794 return NULL;
170c46a65022 Fix mixup about PyErr_NoMemory() prototype.
Guido van Rossum <guido@python.org>
parents: 5931
diff changeset
795 }
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
796 }
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
797
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
798 ANY *
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
799 Py_Realloc(p, nbytes)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
800 ANY *p;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
801 size_t nbytes;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
802 {
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
803 #if _PyMem_EXTRA > 0
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
804 if (nbytes == 0)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
805 nbytes = _PyMem_EXTRA;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
806 #endif
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
807 p = realloc(p, nbytes);
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
808 if (p != NULL)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
809 return p;
5981
170c46a65022 Fix mixup about PyErr_NoMemory() prototype.
Guido van Rossum <guido@python.org>
parents: 5931
diff changeset
810 else {
170c46a65022 Fix mixup about PyErr_NoMemory() prototype.
Guido van Rossum <guido@python.org>
parents: 5931
diff changeset
811 PyErr_NoMemory();
170c46a65022 Fix mixup about PyErr_NoMemory() prototype.
Guido van Rossum <guido@python.org>
parents: 5931
diff changeset
812 return NULL;
170c46a65022 Fix mixup about PyErr_NoMemory() prototype.
Guido van Rossum <guido@python.org>
parents: 5931
diff changeset
813 }
5931
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
814 }
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
815
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
816 void
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
817 Py_Free(p)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
818 ANY *p;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
819 {
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
820 free(p);
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
821 }
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
822
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
823 /* The PyMem_{Malloc,Realloc} wrappers don't call anything on failure */
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
824
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
825 ANY *
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
826 PyMem_Malloc(nbytes)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
827 size_t nbytes;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
828 {
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
829 #if _PyMem_EXTRA > 0
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
830 if (nbytes == 0)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
831 nbytes = _PyMem_EXTRA;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
832 #endif
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
833 return malloc(nbytes);
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
834 }
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
835
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
836 ANY *
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
837 PyMem_Realloc(p, nbytes)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
838 ANY *p;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
839 size_t nbytes;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
840 {
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
841 #if _PyMem_EXTRA > 0
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
842 if (nbytes == 0)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
843 nbytes = _PyMem_EXTRA;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
844 #endif
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
845 return realloc(p, nbytes);
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
846 }
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
847
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
848 void
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
849 PyMem_Free(p)
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
850 ANY *p;
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
851 {
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
852 free(p);
12fe5cc1516d Added _Py_ResetReferences(), if tracing references.
Guido van Rossum <guido@python.org>
parents: 5610
diff changeset
853 }
7984
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
854
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
855
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
856 /* 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
857 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
858 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
859 Py_ReprLeave() to avoid infinite recursion.
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
860
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
861 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
862 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
863 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
864
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
865 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
866 */
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
867
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
868 #define KEY "Py_Repr"
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
869
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
870 int
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
871 Py_ReprEnter(obj)
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
872 PyObject *obj;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
873 {
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
874 PyObject *dict;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
875 PyObject *list;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
876 int i;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
877
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
878 dict = PyThreadState_GetDict();
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
879 if (dict == NULL)
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
880 return -1;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
881 list = PyDict_GetItemString(dict, KEY);
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
882 if (list == NULL) {
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
883 list = PyList_New(0);
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
884 if (list == NULL)
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
885 return -1;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
886 if (PyDict_SetItemString(dict, KEY, list) < 0)
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
887 return -1;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
888 Py_DECREF(list);
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
889 }
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
890 i = PyList_GET_SIZE(list);
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
891 while (--i >= 0) {
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
892 if (PyList_GET_ITEM(list, i) == obj)
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
893 return 1;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
894 }
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
895 PyList_Append(list, obj);
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
896 return 0;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
897 }
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
898
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
899 void
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
900 Py_ReprLeave(obj)
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
901 PyObject *obj;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
902 {
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
903 PyObject *dict;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
904 PyObject *list;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
905 int i;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
906
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
907 dict = PyThreadState_GetDict();
8006
a842c9e63280 Some robustness checks in Py_ReprLeave() in the unlikely event someone
Guido van Rossum <guido@python.org>
parents: 7984
diff changeset
908 if (dict == NULL)
a842c9e63280 Some robustness checks in Py_ReprLeave() in the unlikely event someone
Guido van Rossum <guido@python.org>
parents: 7984
diff changeset
909 return;
7984
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
910 list = PyDict_GetItemString(dict, KEY);
8006
a842c9e63280 Some robustness checks in Py_ReprLeave() in the unlikely event someone
Guido van Rossum <guido@python.org>
parents: 7984
diff changeset
911 if (list == NULL || !PyList_Check(list))
a842c9e63280 Some robustness checks in Py_ReprLeave() in the unlikely event someone
Guido van Rossum <guido@python.org>
parents: 7984
diff changeset
912 return;
7984
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
913 i = PyList_GET_SIZE(list);
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
914 /* Count backwards because we always expect obj to be list[-1] */
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
915 while (--i >= 0) {
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
916 if (PyList_GET_ITEM(list, i) == obj) {
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
917 PyList_SetSlice(list, i, i + 1, NULL);
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
918 break;
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
919 }
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
920 }
1d0eb2e96d76 Add implementations of Py_Repr{Enter,Leave}.
Guido van Rossum <guido@python.org>
parents: 7935
diff changeset
921 }
11999
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
922
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
923 /*
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
924 trashcan
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
925 CT 2k0130
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
926 non-recursively destroy nested objects
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
927
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
928 CT 2k0223
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
929 everything is now done in a macro.
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
930
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
931 CT 2k0305
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
932 modified to use functions, after Tim Peter's suggestion.
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
933
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
934 CT 2k0309
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
935 modified to restore a possible error.
12052
5d3165e30bce Christian Tismer:
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
936
5d3165e30bce Christian Tismer:
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
937 CT 2k0325
5d3165e30bce Christian Tismer:
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
938 added better safe than sorry check for threadstate
11999
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
939 */
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
940
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
941 int _PyTrash_delete_nesting = 0;
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
942 PyObject * _PyTrash_delete_later = NULL;
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
943
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
944 void
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
945 _PyTrash_deposit_object(op)
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
946 PyObject *op;
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
947 {
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
948 PyObject *error_type, *error_value, *error_traceback;
12052
5d3165e30bce Christian Tismer:
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
949
5d3165e30bce Christian Tismer:
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
950 if (PyThreadState_GET() != NULL)
5d3165e30bce Christian Tismer:
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
951 PyErr_Fetch(&error_type, &error_value, &error_traceback);
11999
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
952
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
953 if (!_PyTrash_delete_later)
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
954 _PyTrash_delete_later = PyList_New(0);
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
955 if (_PyTrash_delete_later)
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
956 PyList_Append(_PyTrash_delete_later, (PyObject *)op);
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
957
12052
5d3165e30bce Christian Tismer:
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
958 if (PyThreadState_GET() != NULL)
5d3165e30bce Christian Tismer:
Guido van Rossum <guido@python.org>
parents: 11999
diff changeset
959 PyErr_Restore(error_type, error_value, error_traceback);
11999
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
960 }
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
961
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
962 void
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
963 _PyTrash_destroy_list()
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
964 {
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
965 while (_PyTrash_delete_later) {
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
966 PyObject *shredder = _PyTrash_delete_later;
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
967 _PyTrash_delete_later = NULL;
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
968 ++_PyTrash_delete_nesting;
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
969 Py_DECREF(shredder);
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
970 --_PyTrash_delete_nesting;
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
971 }
c94247b5c355 Christian Tismer's "trashcan" patch:
Guido van Rossum <guido@python.org>
parents: 11969
diff changeset
972 }