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annotate Python/errors.c @ 13255:916fb024ce94 legacy-trunk

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Change copyright notice.
author Guido van Rossum <guido@python.org>
date Fri, 30 Jun 2000 23:50:40 +0000
parents 3b8d9e63e4e1
children 87ee82e5c56d
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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 Copyright (c) 2000, BeOpen.com.
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8 Copyright (c) 1995-2000, Corporation for National Research Initiatives.
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9 Copyright (c) 1990-1995, Stichting Mathematisch Centrum.
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10 All rights reserved.
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11
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12 See the file "Misc/COPYRIGHT" for information on usage and
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13 redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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14
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15 ******************************************************************/
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16
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17 /* Error handling */
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18
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19 #include "Python.h"
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20
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21 #ifdef SYMANTEC__CFM68K__
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22 #pragma lib_export on
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23 #endif
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24
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25 #ifdef macintosh
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26 extern char *PyMac_StrError Py_PROTO((int));
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27 #undef strerror
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28 #define strerror PyMac_StrError
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29 #endif /* macintosh */
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30
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31 #ifndef __STDC__
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32 #ifndef MS_WINDOWS
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33 extern char *strerror Py_PROTO((int));
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34 #endif
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35 #endif
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36
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37 #ifdef MS_WIN32
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38 #include "windows.h"
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39 #include "winbase.h"
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40 #endif
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41
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42 void
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43 PyErr_Restore(type, value, traceback)
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44 PyObject *type;
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45 PyObject *value;
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46 PyObject *traceback;
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47 {
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48 PyThreadState *tstate = PyThreadState_GET();
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49 PyObject *oldtype, *oldvalue, *oldtraceback;
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50
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51 if (traceback != NULL && !PyTraceBack_Check(traceback)) {
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52 /* XXX Should never happen -- fatal error instead? */
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53 Py_DECREF(traceback);
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54 traceback = NULL;
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55 }
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56
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57 /* Save these in locals to safeguard against recursive
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58 invocation through Py_XDECREF */
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59 oldtype = tstate->curexc_type;
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60 oldvalue = tstate->curexc_value;
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61 oldtraceback = tstate->curexc_traceback;
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62
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63 tstate->curexc_type = type;
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64 tstate->curexc_value = value;
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65 tstate->curexc_traceback = traceback;
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66
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67 Py_XDECREF(oldtype);
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68 Py_XDECREF(oldvalue);
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69 Py_XDECREF(oldtraceback);
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70 }
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71
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72 void
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73 PyErr_SetObject(exception, value)
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74 PyObject *exception;
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75 PyObject *value;
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76 {
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77 Py_XINCREF(exception);
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78 Py_XINCREF(value);
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79 PyErr_Restore(exception, value, (PyObject *)NULL);
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80 }
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81
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82 void
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83 PyErr_SetNone(exception)
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84 PyObject *exception;
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85 {
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86 PyErr_SetObject(exception, (PyObject *)NULL);
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87 }
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89 void
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90 PyErr_SetString(exception, string)
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91 PyObject *exception;
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92 const char *string;
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93 {
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94 PyObject *value = PyString_FromString(string);
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95 PyErr_SetObject(exception, value);
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96 Py_XDECREF(value);
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97 }
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98
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99
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100 PyObject *
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101 PyErr_Occurred()
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102 {
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103 PyThreadState *tstate = PyThreadState_Get();
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104
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105 return tstate->curexc_type;
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106 }
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107
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108
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109 int
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110 PyErr_GivenExceptionMatches(err, exc)
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111 PyObject *err, *exc;
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112 {
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113 if (err == NULL || exc == NULL) {
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114 /* maybe caused by "import exceptions" that failed early on */
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115 return 0;
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116 }
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117 if (PyTuple_Check(exc)) {
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118 int i, n;
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119 n = PyTuple_Size(exc);
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120 for (i = 0; i < n; i++) {
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121 /* Test recursively */
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122 if (PyErr_GivenExceptionMatches(
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123 err, PyTuple_GET_ITEM(exc, i)))
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124 {
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125 return 1;
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126 }
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127 }
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128 return 0;
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129 }
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130 /* err might be an instance, so check its class. */
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131 if (PyInstance_Check(err))
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132 err = (PyObject*)((PyInstanceObject*)err)->in_class;
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133
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134 if (PyClass_Check(err) && PyClass_Check(exc))
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135 return PyClass_IsSubclass(err, exc);
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136
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137 return err == exc;
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138 }
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139
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140
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141 int
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142 PyErr_ExceptionMatches(exc)
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143 PyObject *exc;
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144 {
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145 return PyErr_GivenExceptionMatches(PyErr_Occurred(), exc);
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146 }
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148
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149 /* Used in many places to normalize a raised exception, including in
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150 eval_code2(), do_raise(), and PyErr_Print()
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 void
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
153 PyErr_NormalizeException(exc, val, tb)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
154 PyObject **exc;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
155 PyObject **val;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
156 PyObject **tb;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
157 {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
158 PyObject *type = *exc;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
159 PyObject *value = *val;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
160 PyObject *inclass = NULL;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
161
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
162 /* If PyErr_SetNone() was used, the value will have been actually
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
163 set to NULL.
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 (!value) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
166 value = Py_None;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
167 Py_INCREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
168 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
169
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
170 if (PyInstance_Check(value))
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
171 inclass = (PyObject*)((PyInstanceObject*)value)->in_class;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
172
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
173 /* 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
174 value will be an instance.
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
175 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
176 if (PyClass_Check(type)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
177 /* 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
178 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
179 value as an argument to instantiation of the type
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
180 class.
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
181 */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
182 if (!inclass || !PyClass_IsSubclass(inclass, type)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
183 PyObject *args, *res;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
184
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
185 if (value == Py_None)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
186 args = Py_BuildValue("()");
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
187 else if (PyTuple_Check(value)) {
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
188 Py_INCREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
189 args = value;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
190 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
191 else
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
192 args = Py_BuildValue("(O)", value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
193
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
194 if (args == NULL)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
195 goto finally;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
196 res = PyEval_CallObject(type, args);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
197 Py_DECREF(args);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
198 if (res == NULL)
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
199 goto finally;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
200 Py_DECREF(value);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
201 value = res;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
202 }
6358
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
203 /* 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
204 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
205 */
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
206 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
207 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
208 type = inclass;
9e82dd76288e PyErr_NormalizeException(): If the exception's type is a class and the
Barry Warsaw <barry@python.org>
parents: 6319
diff changeset
209 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
210 }
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
211 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
212 *exc = type;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
213 *val = value;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
214 return;
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
215 finally:
6789
bb440a2975ab Fix subtle bug in cleanup code in PyErr_NormalizeException(), detected
Guido van Rossum <guido@python.org>
parents: 6377
diff changeset
216 Py_DECREF(type);
bb440a2975ab Fix subtle bug in cleanup code in PyErr_NormalizeException(), detected
Guido van Rossum <guido@python.org>
parents: 6377
diff changeset
217 Py_DECREF(value);
6146
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
218 Py_XDECREF(*tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
219 PyErr_Fetch(exc, val, tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
220 /* normalize recursively */
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
221 PyErr_NormalizeException(exc, val, tb);
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
222 }
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
223
a2a1df0ca808 Three new C API functions:
Barry Warsaw <barry@python.org>
parents: 5979
diff changeset
224
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
225 void
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
226 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
227 PyObject **p_type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
228 PyObject **p_value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
229 PyObject **p_traceback;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
230 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
231 PyThreadState *tstate = PyThreadState_Get();
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
232
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
233 *p_type = tstate->curexc_type;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
234 *p_value = tstate->curexc_value;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
235 *p_traceback = tstate->curexc_traceback;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
236
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
237 tstate->curexc_type = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
238 tstate->curexc_value = NULL;
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
239 tstate->curexc_traceback = NULL;
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
240 }
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
241
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
242 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
243 PyErr_Clear()
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
244 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
245 PyErr_Restore(NULL, NULL, NULL);
6
fc6fcd7df4f7 Initial revision
Guido van Rossum <guido@python.org>
parents:
diff changeset
246 }
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
247
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
248 /* 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
249
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
250 int
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
251 PyErr_BadArgument()
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
252 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
253 PyErr_SetString(PyExc_TypeError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
254 "illegal argument type for built-in operation");
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
255 return 0;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
256 }
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
257
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
258 PyObject *
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
259 PyErr_NoMemory()
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
260 {
6190
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
261 /* 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
262 if (PyExc_MemoryErrorInst)
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
263 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
264 else
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
265 /* 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
266 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
267 */
b5757e87eb32 PyErr_NoMemory(): If the pre-instantiated memory exception is non-null
Barry Warsaw <barry@python.org>
parents: 6146
diff changeset
268 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
269
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
270 return NULL;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
271 }
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
272
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
273 PyObject *
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
274 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
275 PyObject *exc;
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
276 char *filename;
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
277 {
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
278 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
279 char *s;
1832
79e420805c67 err_clear: clear interpreter stack trace
Guido van Rossum <guido@python.org>
parents: 1319
diff changeset
280 int i = errno;
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
281 #ifdef MS_WIN32
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
282 char *s_buf = NULL;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
283 #endif
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
284 #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
285 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
286 return NULL;
2376
c31eaed7798b rename macstrerror to PyMac_StrError; no EINTR test in CW
Guido van Rossum <guido@python.org>
parents: 2190
diff changeset
287 #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
288 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
289 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
290 else
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
291 #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
292 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
293 #else
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
294 {
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
295 /* 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
296 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
297 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
298 a Win32 error code
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
299 */
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
300 if (i > 0 && i < _sys_nerr) {
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
301 s = _sys_errlist[i];
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
302 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
303 else {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
304 int len = FormatMessage(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
305 FORMAT_MESSAGE_ALLOCATE_BUFFER |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
306 FORMAT_MESSAGE_FROM_SYSTEM |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
307 FORMAT_MESSAGE_IGNORE_INSERTS,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
308 NULL, /* no message source */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
309 i,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
310 MAKELANGID(LANG_NEUTRAL,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
311 SUBLANG_DEFAULT),
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
312 /* Default language */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
313 (LPTSTR) &s_buf,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
314 0, /* size not used */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
315 NULL); /* no args */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
316 s = s_buf;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
317 /* remove trailing cr/lf and dots */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
318 while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.'))
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
319 s[--len] = '\0';
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
320 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
321 }
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
322 #endif
12559
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
323 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
324 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
325 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
326 v = Py_BuildValue("(is)", i, s);
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
327 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
328 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
329 Py_DECREF(v);
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
330 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
331 #ifdef MS_WIN32
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
332 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
333 #endif
9
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
334 return NULL;
33701db4ea55 Adde dconvenience functions.
Guido van Rossum <guido@python.org>
parents: 6
diff changeset
335 }
10638
df8a1c281ad7 Patch by Christian Tismer for Win32, to use FormatMessage() instead of
Guido van Rossum <guido@python.org>
parents: 9671
diff changeset
336
8706
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
337
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
338 PyObject *
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
339 PyErr_SetFromErrno(exc)
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
340 PyObject *exc;
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
341 {
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
342 return PyErr_SetFromErrnoWithFilename(exc, NULL);
ca1c669bb041 PyErr_SetFromErrnoWithFilename(): New function which supports setting
Barry Warsaw <barry@python.org>
parents: 6789
diff changeset
343 }
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
344
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
345 #ifdef MS_WINDOWS
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
346 /* Windows specific error code handling */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
347 PyObject *PyErr_SetFromWindowsErrWithFilename(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
348 int ierr,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
349 const char *filename)
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
350 {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
351 int len;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
352 char *s;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
353 PyObject *v;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
354 DWORD err = (DWORD)ierr;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
355 if (err==0) err = GetLastError();
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
356 len = FormatMessage(
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
357 /* Error API error */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
358 FORMAT_MESSAGE_ALLOCATE_BUFFER |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
359 FORMAT_MESSAGE_FROM_SYSTEM |
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
360 FORMAT_MESSAGE_IGNORE_INSERTS,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
361 NULL, /* no message source */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
362 err,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
363 MAKELANGID(LANG_NEUTRAL,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
364 SUBLANG_DEFAULT), /* Default language */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
365 (LPTSTR) &s,
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
366 0, /* size not used */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
367 NULL); /* no args */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
368 /* remove trailing cr/lf and dots */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
369 while (len > 0 && (s[len-1] <= ' ' || s[len-1] == '.'))
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
370 s[--len] = '\0';
12559
3b8d9e63e4e1 PyErr_GivenExceptionMatches(): Check for err==NULL and exc==NULL and
Barry Warsaw <barry@python.org>
parents: 11899
diff changeset
371 if (filename != NULL)
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
372 v = Py_BuildValue("(iss)", err, s, filename);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
373 else
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
374 v = Py_BuildValue("(is)", err, s);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
375 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
376 PyErr_SetObject(PyExc_WindowsError, v);
11801
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
377 Py_DECREF(v);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
378 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
379 LocalFree(s);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
380 return NULL;
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
381 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
382
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
383 PyObject *PyErr_SetFromWindowsErr(int ierr)
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
384 {
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
385 return PyErr_SetFromWindowsErrWithFilename(ierr, NULL);
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
386
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
387 }
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
388 #endif /* MS_WINDOWS */
fe960ad3db65 Patch by Mark Hammond:
Guido van Rossum <guido@python.org>
parents: 10638
diff changeset
389
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
390 void
5370
1ea1f019268d Quickly renamed. Also removed the long comment explaining why this is
Guido van Rossum <guido@python.org>
parents: 5318
diff changeset
391 PyErr_BadInternalCall()
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
392 {
5405
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
393 PyErr_SetString(PyExc_SystemError,
b7871ca930ad Massive changes for separate thread state management.
Guido van Rossum <guido@python.org>
parents: 5370
diff changeset
394 "bad argument to internal function");
22
2d3eb717a00d Added err_badcall().
Guido van Rossum <guido@python.org>
parents: 9
diff changeset
395 }
5105
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
396
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 #ifdef HAVE_STDARG_PROTOTYPES
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
399 PyObject *
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
400 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
401 #else
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
402 PyObject *
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
403 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
404 PyObject *exception;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
405 const char *format;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
406 va_dcl
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
407 #endif
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 va_list vargs;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
410 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
411
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
412 #ifdef HAVE_STDARG_PROTOTYPES
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
413 va_start(vargs, format);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
414 #else
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
415 va_start(vargs);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
416 #endif
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
417
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
418 vsprintf(buffer, format, vargs);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
419 PyErr_SetString(exception, buffer);
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
420 return NULL;
00fd6857f76b Added convenience function PyErr_Format(exception, formatstring, ...) -> NULL.
Guido van Rossum <guido@python.org>
parents: 4654
diff changeset
421 }
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
422
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
423
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
424 PyObject *
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
425 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
426 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
427 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
428 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
429 {
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
430 char *dot;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
431 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
432 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
433 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
434 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
435 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
436 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
437 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
438 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
439 "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
440 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
441 }
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
442 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
443 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
444 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
445 /* 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
446 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
447 }
6319
b7f0b98f5325 New API PyErr_NewException(name, base, dict) to create simple new exceptions.
Guido van Rossum <guido@python.org>
parents: 6190
diff changeset
448 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
449 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
450 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
451 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
452 }
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
453 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
454 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
455 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
456 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
457 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
458 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
459 }
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
460 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
461 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
462 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
463 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
464 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
465 goto failure;
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
466 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
467 failure:
6377
4cb223f29337 New version of PyErr_NewException() that is compatible with -X option.
Guido van Rossum <guido@python.org>
parents: 6358
diff changeset
468 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
469 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
470 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
471 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
472 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
473 }