annotate Python/errors.c @ 14330:6dee1985c681 legacy-trunk

refactor __del__ exception handler into PyErr_WriteUnraisable add sanity check to gc: if an exception occurs during GC, call PyErr_WriteUnraisable and then call Py_FatalEror.
author Jeremy Hylton <jeremy@alum.mit.edu>
date Fri, 01 Sep 2000 02:47:25 +0000
parents 019265b3a856
children 951eb3af3494
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1 /***********************************************************
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2 Copyright (c) 2000, BeOpen.com.
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3 Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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4 Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
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5 All rights reserved.
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6
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7 See the file "Misc/COPYRIGHT" for information on usage and
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8 redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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9 ******************************************************************/
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10
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11 /* Error handling */
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12
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13 #include "Python.h"
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14
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15 #ifdef macintosh
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16 extern char *PyMac_StrError(int);
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17 #undef strerror
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18 #define strerror PyMac_StrError
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19 #endif /* macintosh */
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20
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21 #ifndef __STDC__
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22 #ifndef MS_WINDOWS
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23 extern char *strerror(int);
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24 #endif
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25 #endif
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26
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27 #ifdef MS_WIN32
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28 #include "windows.h"
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29 #include "winbase.h"
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30 #endif
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31
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32 void
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33 PyErr_Restore(PyObject *type, PyObject *value, PyObject *traceback)
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34 {
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35 PyThreadState *tstate = PyThreadState_GET();
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36 PyObject *oldtype, *oldvalue, *oldtraceback;
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37
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38 if (traceback != NULL && !PyTraceBack_Check(traceback)) {
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39 /* XXX Should never happen -- fatal error instead? */
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40 Py_DECREF(traceback);
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41 traceback = NULL;
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42 }
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43
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44 /* Save these in locals to safeguard against recursive
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45 invocation through Py_XDECREF */
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46 oldtype = tstate->curexc_type;
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47 oldvalue = tstate->curexc_value;
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48 oldtraceback = tstate->curexc_traceback;
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49
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50 tstate->curexc_type = type;
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51 tstate->curexc_value = value;
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52 tstate->curexc_traceback = traceback;
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53
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54 Py_XDECREF(oldtype);
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55 Py_XDECREF(oldvalue);
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56 Py_XDECREF(oldtraceback);
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57 }
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58
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59 void
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60 PyErr_SetObject(PyObject *exception, PyObject *value)
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61 {
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62 Py_XINCREF(exception);
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63 Py_XINCREF(value);
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64 PyErr_Restore(exception, value, (PyObject *)NULL);
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65 }
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66
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67 void
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68 PyErr_SetNone(PyObject *exception)
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69 {
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70 PyErr_SetObject(exception, (PyObject *)NULL);
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71 }
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72
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73 void
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74 PyErr_SetString(PyObject *exception, const char *string)
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75 {
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76 PyObject *value = PyString_FromString(string);
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77 PyErr_SetObject(exception, value);
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78 Py_XDECREF(value);
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79 }
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80
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81
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82 PyObject *
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83 PyErr_Occurred(void)
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84 {
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85 PyThreadState *tstate = PyThreadState_Get();
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86
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87 return tstate->curexc_type;
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88 }
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89
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91 int
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92 PyErr_GivenExceptionMatches(PyObject *err, PyObject *exc)
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93 {
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94 if (err == NULL || exc == NULL) {
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95 /* maybe caused by "import exceptions" that failed early on */
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96 return 0;
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97 }
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98 if (PyTuple_Check(exc)) {
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99 int i, n;
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100 n = PyTuple_Size(exc);
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101 for (i = 0; i < n; i++) {
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102 /* Test recursively */
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103 if (PyErr_GivenExceptionMatches(
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104 err, PyTuple_GET_ITEM(exc, i)))
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105 {
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106 return 1;
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107 }
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108 }
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109 return 0;
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110 }
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111 /* err might be an instance, so check its class. */
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112 if (PyInstance_Check(err))
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113 err = (PyObject*)((PyInstanceObject*)err)->in_class;
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114
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115 if (PyClass_Check(err) && PyClass_Check(exc))
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116 return PyClass_IsSubclass(err, exc);
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117
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118 return err == exc;
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119 }
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122 int
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123 PyErr_ExceptionMatches(PyObject *exc)
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124 {
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125 return PyErr_GivenExceptionMatches(PyErr_Occurred(), exc);
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126 }
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127
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128
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129 /* Used in many places to normalize a raised exception, including in
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130 eval_code2(), do_raise(), and PyErr_Print()
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131 */
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132 void
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133 PyErr_NormalizeException(PyObject **exc, PyObject **val, PyObject **tb)
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134 {
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135 PyObject *type = *exc;
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136 PyObject *value = *val;
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137 PyObject *inclass = NULL;
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138
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139 if (type == NULL) {
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140 /* This is a bug. Should never happen. Don't dump core. */
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141 PyErr_SetString(PyExc_SystemError,
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142 "PyErr_NormalizeException() called without exception");
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143 }
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144
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145 /* If PyErr_SetNone() was used, the value will have been actually
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146 set to NULL.
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147 */
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148 if (!value) {
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Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
149 value = Py_None;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
150 Py_INCREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
151 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
152
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
153 if (PyInstance_Check(value))
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
154 inclass = (PyObject*)((PyInstanceObject*)value)->in_class;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
155
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
156 /* Normalize the exception so that if the type is a class, the
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
157 value will be an instance.
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
158 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
159 if (PyClass_Check(type)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
160 /* if the value was not an instance, or is not an instance
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
161 whose class is (or is derived from) type, then use the
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
162 value as an argument to instantiation of the type
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
163 class.
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
164 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
165 if (!inclass || !PyClass_IsSubclass(inclass, type)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
166 PyObject *args, *res;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
167
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
168 if (value == Py_None)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
169 args = Py_BuildValue("()");
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
170 else if (PyTuple_Check(value)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
171 Py_INCREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
172 args = value;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
173 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
174 else
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
175 args = Py_BuildValue("(O)", value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
176
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
177 if (args == NULL)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
178 goto finally;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
179 res = PyEval_CallObject(type, args);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
180 Py_DECREF(args);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
181 if (res == NULL)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
182 goto finally;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
183 Py_DECREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
184 value = res;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
185 }
6358
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
186 /* if the class of the instance doesn't exactly match the
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
187 class of the type, believe the instance
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
188 */
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
189 else if (inclass != type) {
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
190 Py_DECREF(type);
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
191 type = inclass;
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
192 Py_INCREF(type);
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
193 }
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
194 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
195 *exc = type;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
196 *val = value;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
197 return;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
198 finally:
6789
bb440a2975ab Fix subtle bug in cleanup code in PyErr_NormalizeException(), detected
Guido van Rossum <guido@python.org>
parents: 6377
diff changeset
199 Py_DECREF(type);
bb440a2975ab Fix subtle bug in cleanup code in PyErr_NormalizeException(), detected
Guido van Rossum <guido@python.org>
parents: 6377
diff changeset
200 Py_DECREF(value);
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
201 Py_XDECREF(*tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
202 PyErr_Fetch(exc, val, tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
203 /* normalize recursively */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
204 PyErr_NormalizeException(exc, val, tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
205 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
206
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
207
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
208 void
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
209 PyErr_Fetch(PyObject **p_type, PyObject **p_value, PyObject **p_traceback)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
210 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
211 PyThreadState *tstate = PyThreadState_Get();
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
212
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
213 *p_type = tstate->curexc_type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
214 *p_value = tstate->curexc_value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
215 *p_traceback = tstate->curexc_traceback;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
216
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
217 tstate->curexc_type = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
218 tstate->curexc_value = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
219 tstate->curexc_traceback = NULL;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
220 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
221
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
222 void
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
223 PyErr_Clear(void)
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
224 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
225 PyErr_Restore(NULL, NULL, NULL);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
226 }
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
227
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
228 /* Convenience functions to set a type error exception and return 0 */
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
229
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
230 int
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
231 PyErr_BadArgument(void)
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
232 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
233 PyErr_SetString(PyExc_TypeError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
234 "illegal argument type for built-in operation");
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
235 return 0;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
236 }
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
237
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
238 PyObject *
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
239 PyErr_NoMemory(void)
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
240 {
14066
25eea88047e9 Do not set a MemoryError exception over another MemoryError exception,
Vladimir Marangozov <vladimir.marangozov@t-online.de>
parents: 13883
diff changeset
241 if (PyErr_ExceptionMatches(PyExc_MemoryError))
25eea88047e9 Do not set a MemoryError exception over another MemoryError exception,
Vladimir Marangozov <vladimir.marangozov@t-online.de>
parents: 13883
diff changeset
242 /* already current */
25eea88047e9 Do not set a MemoryError exception over another MemoryError exception,
Vladimir Marangozov <vladimir.marangozov@t-online.de>
parents: 13883
diff changeset
243 return NULL;
25eea88047e9 Do not set a MemoryError exception over another MemoryError exception,
Vladimir Marangozov <vladimir.marangozov@t-online.de>
parents: 13883
diff changeset
244
6190
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
245 /* raise the pre-allocated instance if it still exists */
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
246 if (PyExc_MemoryErrorInst)
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
247 PyErr_SetObject(PyExc_MemoryError, PyExc_MemoryErrorInst);
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
248 else
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
249 /* this will probably fail since there's no memory and hee,
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
250 hee, we have to instantiate this class
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
251 */
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
252 PyErr_SetNone(PyExc_MemoryError);
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
253
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
254 return NULL;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
255 }
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
256
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
257 PyObject *
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
258 PyErr_SetFromErrnoWithFilename(PyObject *exc, char *filename)
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
259 {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
260 PyObject *v;
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
261 char *s;
1832
79e420805c67 err_clear: clear interpreter stack trace
Guido van Rossum <guido@python.org>
parents: 1319
diff changeset
262 int i = errno;
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
263 #ifdef MS_WIN32
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
264 char *s_buf = NULL;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
265 #endif
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
266 #ifdef EINTR
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
267 if (i == EINTR && PyErr_CheckSignals())
390
172aa2c3e734 Check for EINTR and turn it into KeyboardInterrupt
Guido van Rossum <guido@python.org>
parents: 145
diff changeset
268 return NULL;
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
269 #endif
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
270 if (i == 0)
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
271 s = "Error"; /* Sometimes errno didn't get set */
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
272 else
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
273 #ifndef MS_WIN32
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
274 s = strerror(i);
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
275 #else
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
276 {
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
277 /* Note that the Win32 errors do not lineup with the
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
278 errno error. So if the error is in the MSVC error
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
279 table, we use it, otherwise we assume it really _is_
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
280 a Win32 error code
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
281 */
11825
4080c7a0f1ed Mark pointed out a buglet in his patch: i < _sys_nerr isn't strong
Guido van Rossum <guido@python.org>
parents: 11801
diff changeset
282 if (i > 0 && i < _sys_nerr) {
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
283 s = _sys_errlist[i];
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
284 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
285 else {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
286 int len = FormatMessage(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
287 FORMAT_MESSAGE_ALLOCATE_BUFFER |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
288 FORMAT_MESSAGE_FROM_SYSTEM |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
289 FORMAT_MESSAGE_IGNORE_INSERTS,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
290 NULL, /* no message source */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
291 i,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
292 MAKELANGID(LANG_NEUTRAL,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
293 SUBLANG_DEFAULT),
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
294 /* Default language */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
295 (LPTSTR) &s_buf,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
296 0, /* size not used */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
297 NULL); /* no args */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
298 s = s_buf;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
299 /* remove trailing cr/lf and dots */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
300 while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.'))
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
301 s[--len] = '\0';
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
302 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
303 }
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
304 #endif
12559
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
305 if (filename != NULL)
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
306 v = Py_BuildValue("(iss)", i, s, filename);
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
307 else
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
parents: 8706
diff changeset
308 v = Py_BuildValue("(is)", i, s);
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
309 if (v != NULL) {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
310 PyErr_SetObject(exc, v);
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
311 Py_DECREF(v);
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
312 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
313 #ifdef MS_WIN32
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
314 LocalFree(s_buf);
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
315 #endif
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
316 return NULL;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
317 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
318
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
319
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
320 PyObject *
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
321 PyErr_SetFromErrno(PyObject *exc)
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
322 {
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
323 return PyErr_SetFromErrnoWithFilename(exc, NULL);
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
324 }
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
325
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
326 #ifdef MS_WINDOWS
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
327 /* Windows specific error code handling */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
328 PyObject *PyErr_SetFromWindowsErrWithFilename(
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
329 int ierr,
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
330 const char *filename)
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
331 {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
332 int len;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
333 char *s;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
334 PyObject *v;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
335 DWORD err = (DWORD)ierr;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
336 if (err==0) err = GetLastError();
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
337 len = FormatMessage(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
338 /* Error API error */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
339 FORMAT_MESSAGE_ALLOCATE_BUFFER |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
340 FORMAT_MESSAGE_FROM_SYSTEM |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
341 FORMAT_MESSAGE_IGNORE_INSERTS,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
342 NULL, /* no message source */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
343 err,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
344 MAKELANGID(LANG_NEUTRAL,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
345 SUBLANG_DEFAULT), /* Default language */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
346 (LPTSTR) &s,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
347 0, /* size not used */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
348 NULL); /* no args */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
349 /* remove trailing cr/lf and dots */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
350 while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.'))
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
351 s[--len] = '\0';
12559
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
352 if (filename != NULL)
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
353 v = Py_BuildValue("(iss)", err, s, filename);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
354 else
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
355 v = Py_BuildValue("(is)", err, s);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
356 if (v != NULL) {
11899
723efcdcce1b Mark discovered a bug in his patch: he didn't *use* PyExc_WindowsError
Guido van Rossum <guido@python.org>
parents: 11825
diff changeset
357 PyErr_SetObject(PyExc_WindowsError, v);
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
358 Py_DECREF(v);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
359 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
360 LocalFree(s);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
361 return NULL;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
362 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
363
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
364 PyObject *PyErr_SetFromWindowsErr(int ierr)
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
365 {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
366 return PyErr_SetFromWindowsErrWithFilename(ierr, NULL);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
367
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
368 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
369 #endif /* MS_WINDOWS */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
370
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
371 void
14170
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
372 _PyErr_BadInternalCall(char *filename, int lineno)
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
373 {
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
374 PyErr_Format(PyExc_SystemError,
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
375 "%s:%d: bad argument to internal function",
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
376 filename, lineno);
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
377 }
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
378
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
379 /* Remove the preprocessor macro for PyErr_BadInternalCall() so that we can
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
380 export the entry point for existing object code: */
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
381 #undef PyErr_BadInternalCall
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
382 void
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
383 PyErr_BadInternalCall(void)
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
384 {
14170
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
385 PyErr_Format(PyExc_SystemError,
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
386 "bad argument to internal function");
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
387 }
14170
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
388 #define PyErr_BadInternalCall() _PyErr_BadInternalCall(__FILE__, __LINE__)
019265b3a856 Improve the exceptions raised by PyErr_BadInternalCall(); adding the
Fred Drake <fdrake@acm.org>
parents: 14066
diff changeset
389
5105
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
390
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
391
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
392 PyObject *
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
393 PyErr_Format(PyObject *exception, const char *format, ...)
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
394 {
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
395 va_list vargs;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
396 char buffer[500]; /* Caller is responsible for limiting the format */
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
397
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
398 va_start(vargs, format);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
399
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
400 vsprintf(buffer, format, vargs);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
401 PyErr_SetString(exception, buffer);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
402 return NULL;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
403 }
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
404
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
405
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
406 PyObject *
13658
f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern'
Thomas Wouters <thomas@python.org>
parents: 13578
diff changeset
407 PyErr_NewException(char *name, PyObject *base, PyObject *dict)
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
408 {
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
409 char *dot;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
410 PyObject *modulename = NULL;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
411 PyObject *classname = NULL;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
412 PyObject *mydict = NULL;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
413 PyObject *bases = NULL;
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
414 PyObject *result = NULL;
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
415 dot = strrchr(name, '.');
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
416 if (dot == NULL) {
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
417 PyErr_SetString(PyExc_SystemError,
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
418 "PyErr_NewException: name must be module.class");
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
419 return NULL;
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
420 }
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
421 if (base == NULL)
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
422 base = PyExc_Exception;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
423 if (!PyClass_Check(base)) {
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
424 /* Must be using string-based standard exceptions (-X) */
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
425 return PyString_FromString(name);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
426 }
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
427 if (dict == NULL) {
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
428 dict = mydict = PyDict_New();
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
429 if (dict == NULL)
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
430 goto failure;
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
431 }
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
432 if (PyDict_GetItemString(dict, "__module__") == NULL) {
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
433 modulename = PyString_FromStringAndSize(name, (int)(dot-name));
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
434 if (modulename == NULL)
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
435 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
436 if (PyDict_SetItemString(dict, "__module__", modulename) != 0)
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
437 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
438 }
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
439 classname = PyString_FromString(dot+1);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
440 if (classname == NULL)
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
441 goto failure;
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
442 bases = Py_BuildValue("(O)", base);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
443 if (bases == NULL)
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
444 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
445 result = PyClass_New(bases, dict, classname);
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
446 failure:
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
447 Py_XDECREF(bases);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
448 Py_XDECREF(mydict);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
449 Py_XDECREF(classname);
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
450 Py_XDECREF(modulename);
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
451 return result;
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
452 }
14330
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
453
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
454 /* Call when an exception has occurred but there is no way for Python
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
455 to handle it. Examples: exception in __del__ or during GC. */
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
456 void
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
457 PyErr_WriteUnraisable(PyObject *obj)
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
458 {
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
459 PyObject *f, *t, *v, *tb;
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
460 PyErr_Fetch(&t, &v, &tb);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
461 f = PySys_GetObject("stderr");
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
462 if (f != NULL) {
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
463 PyFile_WriteString("Exception ", f);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
464 if (t) {
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
465 PyFile_WriteObject(t, f, Py_PRINT_RAW);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
466 if (v && v != Py_None) {
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
467 PyFile_WriteString(": ", f);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
468 PyFile_WriteObject(v, f, 0);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
469 }
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
470 }
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
471 PyFile_WriteString(" in ", f);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
472 PyFile_WriteObject(obj, f, 0);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
473 PyFile_WriteString(" ignored\n", f);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
474 PyErr_Clear(); /* Just in case */
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
475 }
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
476 Py_XDECREF(t);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
477 Py_XDECREF(v);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
478 Py_XDECREF(tb);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 14170
diff changeset
479 }