annotate Python/errors.c @ 11999:c94247b5c355 legacy-trunk

Christian Tismer's "trashcan" patch: Added wrapping macros to dictobject.c, listobject.c, tupleobject.c, frameobject.c, traceback.c that safely prevends core dumps on stack overflow. Macros and functions in object.c, object.h. The method is an "elevator destructor" that turns cascading deletes into tail recursive behavior when some limit is hit.
author Guido van Rossum <guido@python.org>
date Mon, 13 Mar 2000 16:01:29 +0000
parents 723efcdcce1b
children 3b8d9e63e4e1
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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 /* Error handling */
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33
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34 #include "Python.h"
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35
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36 #ifdef SYMANTEC__CFM68K__
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37 #pragma lib_export on
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38 #endif
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39
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40 #ifdef macintosh
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41 extern char *PyMac_StrError Py_PROTO((int));
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42 #undef strerror
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43 #define strerror PyMac_StrError
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44 #endif /* macintosh */
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45
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46 #ifndef __STDC__
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47 #ifndef MS_WINDOWS
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48 extern char *strerror Py_PROTO((int));
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49 #endif
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50 #endif
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51
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52 #ifdef MS_WIN32
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53 #include "windows.h"
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54 #include "winbase.h"
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55 #endif
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56
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57 void
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58 PyErr_Restore(type, value, traceback)
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59 PyObject *type;
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60 PyObject *value;
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61 PyObject *traceback;
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62 {
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63 PyThreadState *tstate = PyThreadState_GET();
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64 PyObject *oldtype, *oldvalue, *oldtraceback;
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65
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66 if (traceback != NULL && !PyTraceBack_Check(traceback)) {
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67 /* XXX Should never happen -- fatal error instead? */
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68 Py_DECREF(traceback);
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69 traceback = NULL;
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70 }
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71
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72 /* Save these in locals to safeguard against recursive
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73 invocation through Py_XDECREF */
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74 oldtype = tstate->curexc_type;
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75 oldvalue = tstate->curexc_value;
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76 oldtraceback = tstate->curexc_traceback;
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77
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78 tstate->curexc_type = type;
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79 tstate->curexc_value = value;
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80 tstate->curexc_traceback = traceback;
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81
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82 Py_XDECREF(oldtype);
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83 Py_XDECREF(oldvalue);
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84 Py_XDECREF(oldtraceback);
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85 }
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87 void
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88 PyErr_SetObject(exception, value)
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89 PyObject *exception;
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90 PyObject *value;
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91 {
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92 Py_XINCREF(exception);
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93 Py_XINCREF(value);
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94 PyErr_Restore(exception, value, (PyObject *)NULL);
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95 }
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96
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97 void
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98 PyErr_SetNone(exception)
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99 PyObject *exception;
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100 {
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101 PyErr_SetObject(exception, (PyObject *)NULL);
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102 }
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103
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104 void
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105 PyErr_SetString(exception, string)
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106 PyObject *exception;
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107 const char *string;
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108 {
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109 PyObject *value = PyString_FromString(string);
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110 PyErr_SetObject(exception, value);
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111 Py_XDECREF(value);
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112 }
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113
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114
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115 PyObject *
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116 PyErr_Occurred()
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117 {
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118 PyThreadState *tstate = PyThreadState_Get();
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119
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120 return tstate->curexc_type;
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121 }
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122
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123
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124 int
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125 PyErr_GivenExceptionMatches(err, exc)
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126 PyObject *err, *exc;
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127 {
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128 if (PyTuple_Check(exc)) {
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129 int i, n;
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130 n = PyTuple_Size(exc);
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131 for (i = 0; i < n; i++) {
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132 /* Test recursively */
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133 if (PyErr_GivenExceptionMatches(
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134 err, PyTuple_GET_ITEM(exc, i)))
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135 {
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136 return 1;
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137 }
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138 }
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139 return 0;
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140 }
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141 /* err might be an instance, so check its class. */
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142 if (PyInstance_Check(err))
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143 err = (PyObject*)((PyInstanceObject*)err)->in_class;
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144
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145 if (PyClass_Check(err) && PyClass_Check(exc))
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146 return PyClass_IsSubclass(err, exc);
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diff changeset
147
a2a1df0ca808 Three new C API functions:
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diff changeset
148 return err == exc;
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diff changeset
149 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
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parents: 9671
diff changeset
150
6146
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diff changeset
151
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
152 int
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
153 PyErr_ExceptionMatches(exc)
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
154 PyObject *exc;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
155 {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
156 return PyErr_GivenExceptionMatches(PyErr_Occurred(), exc);
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
157 }
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
158
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
159
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
160 /* Used in many places to normalize a raised exception, including in
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
161 eval_code2(), do_raise(), and PyErr_Print()
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
162 */
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
163 void
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
164 PyErr_NormalizeException(exc, val, tb)
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
165 PyObject **exc;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
166 PyObject **val;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
167 PyObject **tb;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
168 {
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
169 PyObject *type = *exc;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
170 PyObject *value = *val;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
171 PyObject *inclass = NULL;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
172
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
173 /* If PyErr_SetNone() was used, the value will have been actually
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
174 set to NULL.
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
175 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
176 if (!value) {
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
177 value = Py_None;
a2a1df0ca808 Three new C API functions:
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diff changeset
178 Py_INCREF(value);
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
179 }
a2a1df0ca808 Three new C API functions:
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diff changeset
180
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
181 if (PyInstance_Check(value))
a2a1df0ca808 Three new C API functions:
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diff changeset
182 inclass = (PyObject*)((PyInstanceObject*)value)->in_class;
a2a1df0ca808 Three new C API functions:
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diff changeset
183
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
184 /* Normalize the exception so that if the type is a class, the
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
185 value will be an instance.
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
186 */
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
187 if (PyClass_Check(type)) {
a2a1df0ca808 Three new C API functions:
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diff changeset
188 /* 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
189 whose class is (or is derived from) type, then use the
a2a1df0ca808 Three new C API functions:
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diff changeset
190 value as an argument to instantiation of the type
a2a1df0ca808 Three new C API functions:
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diff changeset
191 class.
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
192 */
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
193 if (!inclass || !PyClass_IsSubclass(inclass, type)) {
a2a1df0ca808 Three new C API functions:
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diff changeset
194 PyObject *args, *res;
a2a1df0ca808 Three new C API functions:
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diff changeset
195
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
196 if (value == Py_None)
a2a1df0ca808 Three new C API functions:
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diff changeset
197 args = Py_BuildValue("()");
a2a1df0ca808 Three new C API functions:
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diff changeset
198 else if (PyTuple_Check(value)) {
a2a1df0ca808 Three new C API functions:
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diff changeset
199 Py_INCREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
200 args = value;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
201 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
202 else
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
203 args = Py_BuildValue("(O)", value);
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
204
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
205 if (args == NULL)
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
206 goto finally;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
207 res = PyEval_CallObject(type, args);
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
208 Py_DECREF(args);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
209 if (res == NULL)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
210 goto finally;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
211 Py_DECREF(value);
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
212 value = res;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
213 }
6358
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
214 /* 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
215 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
216 */
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
217 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
218 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
219 type = inclass;
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
220 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
221 }
6146
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
222 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
223 *exc = type;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
224 *val = value;
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
225 return;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
226 finally:
6789
bb440a2975ab Fix subtle bug in cleanup code in PyErr_NormalizeException(), detected
Guido van Rossum <guido@python.org>
parents: 6377
diff changeset
227 Py_DECREF(type);
bb440a2975ab Fix subtle bug in cleanup code in PyErr_NormalizeException(), detected
Guido van Rossum <guido@python.org>
parents: 6377
diff changeset
228 Py_DECREF(value);
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
229 Py_XDECREF(*tb);
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
230 PyErr_Fetch(exc, val, tb);
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
231 /* normalize recursively */
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
232 PyErr_NormalizeException(exc, val, tb);
a2a1df0ca808 Three new C API functions:
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parents: 5979
diff changeset
233 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
234
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
235
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
236 void
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
237 PyErr_Fetch(p_type, p_value, p_traceback)
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
238 PyObject **p_type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
239 PyObject **p_value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
240 PyObject **p_traceback;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
241 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
242 PyThreadState *tstate = PyThreadState_Get();
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
243
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
244 *p_type = tstate->curexc_type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
245 *p_value = tstate->curexc_value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
246 *p_traceback = tstate->curexc_traceback;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
247
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
248 tstate->curexc_type = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
249 tstate->curexc_value = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
250 tstate->curexc_traceback = NULL;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
251 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
252
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
253 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
254 PyErr_Clear()
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
255 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
256 PyErr_Restore(NULL, NULL, NULL);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
257 }
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
258
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
259 /* 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
260
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
261 int
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
262 PyErr_BadArgument()
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
263 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
264 PyErr_SetString(PyExc_TypeError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
265 "illegal argument type for built-in operation");
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
266 return 0;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
267 }
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
268
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
269 PyObject *
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
270 PyErr_NoMemory()
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
271 {
6190
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
272 /* 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
273 if (PyExc_MemoryErrorInst)
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
274 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
275 else
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
276 /* 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
277 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
278 */
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
279 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
280
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
281 return NULL;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
282 }
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
283
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
284 PyObject *
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
285 PyErr_SetFromErrnoWithFilename(exc, filename)
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
286 PyObject *exc;
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
287 char *filename;
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
288 {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
289 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
290 char *s;
1832
79e420805c67 err_clear: clear interpreter stack trace
Guido van Rossum <guido@python.org>
parents: 1319
diff changeset
291 int i = errno;
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
292 #ifdef MS_WIN32
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
293 char *s_buf = NULL;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
294 #endif
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
295 #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
296 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
297 return NULL;
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
298 #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
299 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
300 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
301 else
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
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302 #ifndef MS_WIN32
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
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303 s = strerror(i);
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
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diff changeset
304 #else
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
305 {
11801
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diff changeset
306 /* Note that the Win32 errors do not lineup with the
fe960ad3db65 Patch by Mark Hammond:
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diff changeset
307 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
308 table, we use it, otherwise we assume it really _is_
fe960ad3db65 Patch by Mark Hammond:
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diff changeset
309 a Win32 error code
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
310 */
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
311 if (i > 0 && i < _sys_nerr) {
11801
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diff changeset
312 s = _sys_errlist[i];
fe960ad3db65 Patch by Mark Hammond:
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diff changeset
313 }
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diff changeset
314 else {
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parents: 10638
diff changeset
315 int len = FormatMessage(
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diff changeset
316 FORMAT_MESSAGE_ALLOCATE_BUFFER |
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parents: 10638
diff changeset
317 FORMAT_MESSAGE_FROM_SYSTEM |
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parents: 10638
diff changeset
318 FORMAT_MESSAGE_IGNORE_INSERTS,
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parents: 10638
diff changeset
319 NULL, /* no message source */
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
320 i,
fe960ad3db65 Patch by Mark Hammond:
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diff changeset
321 MAKELANGID(LANG_NEUTRAL,
fe960ad3db65 Patch by Mark Hammond:
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diff changeset
322 SUBLANG_DEFAULT),
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Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
323 /* Default language */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
324 (LPTSTR) &s_buf,
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
325 0, /* size not used */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
326 NULL); /* no args */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
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diff changeset
327 s = s_buf;
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
328 /* remove trailing cr/lf and dots */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
329 while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.'))
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
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diff changeset
330 s[--len] = '\0';
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
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331 }
10638
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Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
332 }
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
333 #endif
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
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diff changeset
334 if (filename != NULL && Py_UseClassExceptionsFlag)
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
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diff changeset
335 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
336 else
9365
c80321c328b5 When errno is zero, avoid calling strerror() and use "Error" for the
Guido van Rossum <guido@python.org>
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diff changeset
337 v = Py_BuildValue("(is)", i, s);
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
338 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
339 PyErr_SetObject(exc, v);
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
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diff changeset
340 Py_DECREF(v);
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
341 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
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diff changeset
342 #ifdef MS_WIN32
11801
fe960ad3db65 Patch by Mark Hammond:
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343 LocalFree(s_buf);
10638
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Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
344 #endif
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
345 return NULL;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
346 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
347
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
348
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
349 PyObject *
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
350 PyErr_SetFromErrno(exc)
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
351 PyObject *exc;
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
352 {
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
353 return PyErr_SetFromErrnoWithFilename(exc, NULL);
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
354 }
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
355
11801
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
356 #ifdef MS_WINDOWS
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
357 /* Windows specific error code handling */
fe960ad3db65 Patch by Mark Hammond:
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diff changeset
358 PyObject *PyErr_SetFromWindowsErrWithFilename(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
359 int ierr,
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
360 const char *filename)
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
361 {
fe960ad3db65 Patch by Mark Hammond:
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parents: 10638
diff changeset
362 int len;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
363 char *s;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
364 PyObject *v;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
365 DWORD err = (DWORD)ierr;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
366 if (err==0) err = GetLastError();
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
367 len = FormatMessage(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
368 /* Error API error */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
369 FORMAT_MESSAGE_ALLOCATE_BUFFER |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
370 FORMAT_MESSAGE_FROM_SYSTEM |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
371 FORMAT_MESSAGE_IGNORE_INSERTS,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
372 NULL, /* no message source */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
373 err,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
374 MAKELANGID(LANG_NEUTRAL,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
375 SUBLANG_DEFAULT), /* Default language */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
376 (LPTSTR) &s,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
377 0, /* size not used */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
378 NULL); /* no args */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
379 /* remove trailing cr/lf and dots */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
380 while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.'))
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
381 s[--len] = '\0';
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
382 if (filename != NULL && Py_UseClassExceptionsFlag)
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
383 v = Py_BuildValue("(iss)", err, s, filename);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
384 else
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
385 v = Py_BuildValue("(is)", err, s);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
386 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
387 PyErr_SetObject(PyExc_WindowsError, v);
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
388 Py_DECREF(v);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
389 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
390 LocalFree(s);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
391 return NULL;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
392 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
393
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
394 PyObject *PyErr_SetFromWindowsErr(int ierr)
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
395 {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
396 return PyErr_SetFromWindowsErrWithFilename(ierr, NULL);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
397
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
398 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
399 #endif /* MS_WINDOWS */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
400
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
401 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
402 PyErr_BadInternalCall()
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
403 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
404 PyErr_SetString(PyExc_SystemError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
405 "bad argument to internal function");
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
406 }
5105
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
407
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
408
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
409 #ifdef HAVE_STDARG_PROTOTYPES
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
410 PyObject *
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
411 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
412 #else
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
413 PyObject *
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
414 PyErr_Format(exception, format, va_alist)
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
415 PyObject *exception;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
416 const char *format;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
417 va_dcl
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
418 #endif
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
419 {
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
420 va_list vargs;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
421 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
422
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
423 #ifdef HAVE_STDARG_PROTOTYPES
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
424 va_start(vargs, format);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
425 #else
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
426 va_start(vargs);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
427 #endif
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
428
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
429 vsprintf(buffer, format, vargs);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
430 PyErr_SetString(exception, buffer);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
431 return NULL;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
432 }
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
433
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
434
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
435 PyObject *
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
436 PyErr_NewException(name, base, dict)
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
437 char *name; /* modulename.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
438 PyObject *base;
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
439 PyObject *dict;
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
440 {
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
441 char *dot;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
442 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
443 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
444 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
445 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
446 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
447 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
448 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
449 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
450 "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
451 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
452 }
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
453 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
454 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
455 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
456 /* 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
457 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
458 }
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
459 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
460 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
461 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
462 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
463 }
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
464 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
465 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
466 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
467 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
468 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
469 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
470 }
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
471 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
472 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
473 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
474 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
475 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
476 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
477 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
478 failure:
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
479 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
480 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
481 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
482 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
483 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
484 }