Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 2 | /* Error handling */ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 3 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 4 | #include "Python.h" |
Guido van Rossum | f22120a | 1990-12-20 23:05:40 +0000 | [diff] [blame] | 5 | |
Guido van Rossum | 53e8d44 | 1995-03-09 12:11:31 +0000 | [diff] [blame] | 6 | #ifndef __STDC__ |
Guido van Rossum | 7844e38 | 1997-04-11 20:44:04 +0000 | [diff] [blame] | 7 | #ifndef MS_WINDOWS |
Tim Peters | dbd9ba6 | 2000-07-09 03:09:57 +0000 | [diff] [blame] | 8 | extern char *strerror(int); |
Guido van Rossum | 53e8d44 | 1995-03-09 12:11:31 +0000 | [diff] [blame] | 9 | #endif |
Guido van Rossum | 7844e38 | 1997-04-11 20:44:04 +0000 | [diff] [blame] | 10 | #endif |
Guido van Rossum | f5401bd | 1990-11-02 17:50:28 +0000 | [diff] [blame] | 11 | |
Martin v. Löwis | 6238d2b | 2002-06-30 15:26:10 +0000 | [diff] [blame] | 12 | #ifdef MS_WINDOWS |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 13 | #include <windows.h> |
| 14 | #include <winbase.h> |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 15 | #endif |
| 16 | |
Jeremy Hylton | b69a27e | 2000-09-01 03:49:47 +0000 | [diff] [blame] | 17 | #include <ctype.h> |
| 18 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 19 | #ifdef __cplusplus |
| 20 | extern "C" { |
| 21 | #endif |
| 22 | |
| 23 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 24 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 25 | PyErr_Restore(PyObject *type, PyObject *value, PyObject *traceback) |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 26 | { |
Guido van Rossum | 885553e | 1998-12-21 18:33:30 +0000 | [diff] [blame] | 27 | PyThreadState *tstate = PyThreadState_GET(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 28 | PyObject *oldtype, *oldvalue, *oldtraceback; |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 29 | |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 30 | if (traceback != NULL && !PyTraceBack_Check(traceback)) { |
| 31 | /* XXX Should never happen -- fatal error instead? */ |
Guido van Rossum | 1a5e21e | 2006-02-28 21:57:43 +0000 | [diff] [blame] | 32 | /* Well, it could be None. */ |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 33 | Py_DECREF(traceback); |
| 34 | traceback = NULL; |
| 35 | } |
| 36 | |
| 37 | /* Save these in locals to safeguard against recursive |
| 38 | invocation through Py_XDECREF */ |
| 39 | oldtype = tstate->curexc_type; |
| 40 | oldvalue = tstate->curexc_value; |
| 41 | oldtraceback = tstate->curexc_traceback; |
| 42 | |
| 43 | tstate->curexc_type = type; |
| 44 | tstate->curexc_value = value; |
| 45 | tstate->curexc_traceback = traceback; |
| 46 | |
| 47 | Py_XDECREF(oldtype); |
| 48 | Py_XDECREF(oldvalue); |
| 49 | Py_XDECREF(oldtraceback); |
Guido van Rossum | 1ae940a | 1995-01-02 19:04:15 +0000 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 53 | PyErr_SetObject(PyObject *exception, PyObject *value) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 54 | { |
Guido van Rossum | b4fb6e4 | 2008-06-14 20:20:24 +0000 | [diff] [blame] | 55 | PyThreadState *tstate = PyThreadState_GET(); |
| 56 | PyObject *tb = NULL; |
| 57 | |
Thomas Wouters | 303de6a | 2006-04-20 22:42:37 +0000 | [diff] [blame] | 58 | if (exception != NULL && |
| 59 | !PyExceptionClass_Check(exception)) { |
Thomas Wouters | 303de6a | 2006-04-20 22:42:37 +0000 | [diff] [blame] | 60 | PyErr_Format(PyExc_SystemError, |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 61 | "exception %R not a BaseException subclass", |
| 62 | exception); |
Thomas Wouters | 303de6a | 2006-04-20 22:42:37 +0000 | [diff] [blame] | 63 | return; |
| 64 | } |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 65 | Py_XINCREF(value); |
Guido van Rossum | b4fb6e4 | 2008-06-14 20:20:24 +0000 | [diff] [blame] | 66 | if (tstate->exc_value != NULL && tstate->exc_value != Py_None) { |
| 67 | /* Implicit exception chaining */ |
| 68 | if (value == NULL || !PyExceptionInstance_Check(value)) { |
| 69 | /* We must normalize the value right now */ |
| 70 | PyObject *args, *fixed_value; |
| 71 | if (value == NULL || value == Py_None) |
| 72 | args = PyTuple_New(0); |
| 73 | else if (PyTuple_Check(value)) { |
| 74 | Py_INCREF(value); |
| 75 | args = value; |
| 76 | } |
| 77 | else |
| 78 | args = PyTuple_Pack(1, value); |
| 79 | fixed_value = args ? |
| 80 | PyEval_CallObject(exception, args) : NULL; |
| 81 | Py_XDECREF(args); |
| 82 | Py_XDECREF(value); |
| 83 | if (fixed_value == NULL) |
| 84 | return; |
| 85 | value = fixed_value; |
| 86 | } |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 87 | /* Avoid reference cycles through the context chain. |
| 88 | This is O(chain length) but context chains are |
| 89 | usually very short. Sensitive readers may try |
| 90 | to inline the call to PyException_GetContext. */ |
| 91 | if (tstate->exc_value != value) { |
| 92 | PyObject *o = tstate->exc_value, *context; |
| 93 | while ((context = PyException_GetContext(o))) { |
| 94 | Py_DECREF(context); |
| 95 | if (context == value) { |
| 96 | PyException_SetContext(o, NULL); |
| 97 | break; |
| 98 | } |
| 99 | o = context; |
| 100 | } |
| 101 | Py_INCREF(tstate->exc_value); |
| 102 | PyException_SetContext(value, tstate->exc_value); |
| 103 | } |
Guido van Rossum | b4fb6e4 | 2008-06-14 20:20:24 +0000 | [diff] [blame] | 104 | } |
| 105 | if (value != NULL && PyExceptionInstance_Check(value)) |
| 106 | tb = PyException_GetTraceback(value); |
| 107 | Py_XINCREF(exception); |
| 108 | PyErr_Restore(exception, value, tb); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 112 | PyErr_SetNone(PyObject *exception) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 113 | { |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 114 | PyErr_SetObject(exception, (PyObject *)NULL); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 118 | PyErr_SetString(PyObject *exception, const char *string) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 119 | { |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 120 | PyObject *value = PyUnicode_FromString(string); |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 121 | PyErr_SetObject(exception, value); |
| 122 | Py_XDECREF(value); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 123 | } |
| 124 | |
Guido van Rossum | 3a24181 | 1994-08-29 12:14:12 +0000 | [diff] [blame] | 125 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 126 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 127 | PyErr_Occurred(void) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 128 | { |
Tim Peters | 024da35 | 2001-05-30 06:09:50 +0000 | [diff] [blame] | 129 | PyThreadState *tstate = PyThreadState_GET(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 130 | |
| 131 | return tstate->curexc_type; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 132 | } |
| 133 | |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 134 | |
| 135 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 136 | PyErr_GivenExceptionMatches(PyObject *err, PyObject *exc) |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 137 | { |
Barry Warsaw | fa5c315 | 2000-05-02 19:27:51 +0000 | [diff] [blame] | 138 | if (err == NULL || exc == NULL) { |
| 139 | /* maybe caused by "import exceptions" that failed early on */ |
| 140 | return 0; |
| 141 | } |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 142 | if (PyTuple_Check(exc)) { |
Martin v. Löwis | d96ee90 | 2006-02-16 14:37:16 +0000 | [diff] [blame] | 143 | Py_ssize_t i, n; |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 144 | n = PyTuple_Size(exc); |
| 145 | for (i = 0; i < n; i++) { |
| 146 | /* Test recursively */ |
| 147 | if (PyErr_GivenExceptionMatches( |
| 148 | err, PyTuple_GET_ITEM(exc, i))) |
| 149 | { |
| 150 | return 1; |
| 151 | } |
| 152 | } |
| 153 | return 0; |
| 154 | } |
| 155 | /* err might be an instance, so check its class. */ |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 156 | if (PyExceptionInstance_Check(err)) |
| 157 | err = PyExceptionInstance_Class(err); |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 158 | |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 159 | if (PyExceptionClass_Check(err) && PyExceptionClass_Check(exc)) { |
Benjamin Peterson | 69c88f7 | 2008-07-31 01:47:08 +0000 | [diff] [blame] | 160 | int res = 0; |
| 161 | PyObject *exception, *value, *tb; |
| 162 | PyErr_Fetch(&exception, &value, &tb); |
| 163 | res = PyObject_IsSubclass(err, exc); |
| 164 | /* This function must not fail, so print the error here */ |
| 165 | if (res == -1) { |
| 166 | PyErr_WriteUnraisable(err); |
| 167 | /* issubclass did not succeed */ |
| 168 | res = 0; |
| 169 | } |
| 170 | PyErr_Restore(exception, value, tb); |
| 171 | return res; |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 172 | } |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 173 | |
| 174 | return err == exc; |
| 175 | } |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 176 | |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 177 | |
| 178 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 179 | PyErr_ExceptionMatches(PyObject *exc) |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 180 | { |
| 181 | return PyErr_GivenExceptionMatches(PyErr_Occurred(), exc); |
| 182 | } |
| 183 | |
| 184 | |
| 185 | /* Used in many places to normalize a raised exception, including in |
| 186 | eval_code2(), do_raise(), and PyErr_Print() |
Benjamin Peterson | e652821 | 2008-07-15 15:32:09 +0000 | [diff] [blame] | 187 | |
| 188 | XXX: should PyErr_NormalizeException() also call |
| 189 | PyException_SetTraceback() with the resulting value and tb? |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 190 | */ |
| 191 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 192 | PyErr_NormalizeException(PyObject **exc, PyObject **val, PyObject **tb) |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 193 | { |
| 194 | PyObject *type = *exc; |
| 195 | PyObject *value = *val; |
| 196 | PyObject *inclass = NULL; |
Jeremy Hylton | e2e2c9f | 2001-09-26 19:58:38 +0000 | [diff] [blame] | 197 | PyObject *initial_tb = NULL; |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 198 | PyThreadState *tstate = NULL; |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 199 | |
Guido van Rossum | ed473a4 | 2000-08-07 19:18:27 +0000 | [diff] [blame] | 200 | if (type == NULL) { |
Guido van Rossum | 6b3fffa | 2003-04-10 20:29:48 +0000 | [diff] [blame] | 201 | /* There was no exception, so nothing to do. */ |
| 202 | return; |
Guido van Rossum | ed473a4 | 2000-08-07 19:18:27 +0000 | [diff] [blame] | 203 | } |
| 204 | |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 205 | /* If PyErr_SetNone() was used, the value will have been actually |
| 206 | set to NULL. |
| 207 | */ |
| 208 | if (!value) { |
| 209 | value = Py_None; |
| 210 | Py_INCREF(value); |
| 211 | } |
| 212 | |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 213 | if (PyExceptionInstance_Check(value)) |
| 214 | inclass = PyExceptionInstance_Class(value); |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 215 | |
| 216 | /* Normalize the exception so that if the type is a class, the |
| 217 | value will be an instance. |
| 218 | */ |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 219 | if (PyExceptionClass_Check(type)) { |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 220 | /* if the value was not an instance, or is not an instance |
| 221 | whose class is (or is derived from) type, then use the |
| 222 | value as an argument to instantiation of the type |
| 223 | class. |
| 224 | */ |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 225 | if (!inclass || !PyObject_IsSubclass(inclass, type)) { |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 226 | PyObject *args, *res; |
| 227 | |
| 228 | if (value == Py_None) |
Raymond Hettinger | 8ae4689 | 2003-10-12 19:09:37 +0000 | [diff] [blame] | 229 | args = PyTuple_New(0); |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 230 | else if (PyTuple_Check(value)) { |
| 231 | Py_INCREF(value); |
| 232 | args = value; |
| 233 | } |
| 234 | else |
Raymond Hettinger | 8ae4689 | 2003-10-12 19:09:37 +0000 | [diff] [blame] | 235 | args = PyTuple_Pack(1, value); |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 236 | |
| 237 | if (args == NULL) |
| 238 | goto finally; |
| 239 | res = PyEval_CallObject(type, args); |
| 240 | Py_DECREF(args); |
| 241 | if (res == NULL) |
| 242 | goto finally; |
| 243 | Py_DECREF(value); |
| 244 | value = res; |
| 245 | } |
Barry Warsaw | 3a74993 | 1997-09-30 15:00:18 +0000 | [diff] [blame] | 246 | /* if the class of the instance doesn't exactly match the |
| 247 | class of the type, believe the instance |
| 248 | */ |
| 249 | else if (inclass != type) { |
| 250 | Py_DECREF(type); |
| 251 | type = inclass; |
| 252 | Py_INCREF(type); |
| 253 | } |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 254 | } |
| 255 | *exc = type; |
| 256 | *val = value; |
| 257 | return; |
| 258 | finally: |
Guido van Rossum | 19b55f2 | 1997-12-09 14:11:39 +0000 | [diff] [blame] | 259 | Py_DECREF(type); |
| 260 | Py_DECREF(value); |
Jeremy Hylton | e2e2c9f | 2001-09-26 19:58:38 +0000 | [diff] [blame] | 261 | /* If the new exception doesn't set a traceback and the old |
| 262 | exception had a traceback, use the old traceback for the |
| 263 | new exception. It's better than nothing. |
| 264 | */ |
| 265 | initial_tb = *tb; |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 266 | PyErr_Fetch(exc, val, tb); |
Jeremy Hylton | e2e2c9f | 2001-09-26 19:58:38 +0000 | [diff] [blame] | 267 | if (initial_tb != NULL) { |
| 268 | if (*tb == NULL) |
| 269 | *tb = initial_tb; |
| 270 | else |
| 271 | Py_DECREF(initial_tb); |
| 272 | } |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 273 | /* normalize recursively */ |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 274 | tstate = PyThreadState_GET(); |
| 275 | if (++tstate->recursion_depth > Py_GetRecursionLimit()) { |
| 276 | --tstate->recursion_depth; |
| 277 | PyErr_SetObject(PyExc_RuntimeError, PyExc_RecursionErrorInst); |
| 278 | return; |
| 279 | } |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 280 | PyErr_NormalizeException(exc, val, tb); |
Thomas Wouters | 89d996e | 2007-09-08 17:39:28 +0000 | [diff] [blame] | 281 | --tstate->recursion_depth; |
Barry Warsaw | c0dc92a | 1997-08-22 21:22:58 +0000 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 285 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 286 | PyErr_Fetch(PyObject **p_type, PyObject **p_value, PyObject **p_traceback) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 287 | { |
Nicholas Bastin | e5662ae | 2004-03-24 22:22:12 +0000 | [diff] [blame] | 288 | PyThreadState *tstate = PyThreadState_GET(); |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 289 | |
| 290 | *p_type = tstate->curexc_type; |
| 291 | *p_value = tstate->curexc_value; |
| 292 | *p_traceback = tstate->curexc_traceback; |
| 293 | |
| 294 | tstate->curexc_type = NULL; |
| 295 | tstate->curexc_value = NULL; |
| 296 | tstate->curexc_traceback = NULL; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 297 | } |
| 298 | |
| 299 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 300 | PyErr_Clear(void) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 301 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 302 | PyErr_Restore(NULL, NULL, NULL); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 303 | } |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 304 | |
| 305 | /* Convenience functions to set a type error exception and return 0 */ |
| 306 | |
| 307 | int |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 308 | PyErr_BadArgument(void) |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 309 | { |
Guido van Rossum | a027efa | 1997-05-05 20:56:21 +0000 | [diff] [blame] | 310 | PyErr_SetString(PyExc_TypeError, |
Fred Drake | 661ea26 | 2000-10-24 19:57:45 +0000 | [diff] [blame] | 311 | "bad argument type for built-in operation"); |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 312 | return 0; |
| 313 | } |
| 314 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 315 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 316 | PyErr_NoMemory(void) |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 317 | { |
Vladimir Marangozov | 0888ff1 | 2000-08-18 18:01:06 +0000 | [diff] [blame] | 318 | if (PyErr_ExceptionMatches(PyExc_MemoryError)) |
| 319 | /* already current */ |
| 320 | return NULL; |
| 321 | |
Barry Warsaw | 2d8adff | 1997-08-29 21:54:35 +0000 | [diff] [blame] | 322 | /* raise the pre-allocated instance if it still exists */ |
| 323 | if (PyExc_MemoryErrorInst) |
| 324 | PyErr_SetObject(PyExc_MemoryError, PyExc_MemoryErrorInst); |
| 325 | else |
| 326 | /* this will probably fail since there's no memory and hee, |
| 327 | hee, we have to instantiate this class |
| 328 | */ |
| 329 | PyErr_SetNone(PyExc_MemoryError); |
| 330 | |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 331 | return NULL; |
| 332 | } |
| 333 | |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 334 | PyObject * |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 335 | PyErr_SetFromErrnoWithFilenameObject(PyObject *exc, PyObject *filenameObject) |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 336 | { |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 337 | PyObject *message; |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 338 | PyObject *v; |
Guido van Rossum | 3a24181 | 1994-08-29 12:14:12 +0000 | [diff] [blame] | 339 | int i = errno; |
Martin v. Löwis | 3484a18 | 2002-03-09 12:07:51 +0000 | [diff] [blame] | 340 | #ifdef PLAN9 |
| 341 | char errbuf[ERRMAX]; |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 342 | #else |
| 343 | #ifndef MS_WINDOWS |
| 344 | char *s; |
| 345 | #else |
| 346 | WCHAR *s_buf = NULL; |
| 347 | #endif /* Unix/Windows */ |
| 348 | #endif /* PLAN 9*/ |
| 349 | |
Guido van Rossum | e9fbc09 | 1995-02-18 14:52:19 +0000 | [diff] [blame] | 350 | #ifdef EINTR |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 351 | if (i == EINTR && PyErr_CheckSignals()) |
Guido van Rossum | 5063bab | 1991-10-20 20:14:56 +0000 | [diff] [blame] | 352 | return NULL; |
Guido van Rossum | e9fbc09 | 1995-02-18 14:52:19 +0000 | [diff] [blame] | 353 | #endif |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 354 | |
Martin v. Löwis | 3484a18 | 2002-03-09 12:07:51 +0000 | [diff] [blame] | 355 | #ifdef PLAN9 |
| 356 | rerrstr(errbuf, sizeof errbuf); |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 357 | message = PyUnicode_DecodeUTF8(errbuf, strlen(errbuf), "ignore"); |
Martin v. Löwis | 3484a18 | 2002-03-09 12:07:51 +0000 | [diff] [blame] | 358 | #else |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 359 | #ifndef MS_WINDOWS |
Guido van Rossum | e0e5982 | 1998-10-14 20:38:13 +0000 | [diff] [blame] | 360 | if (i == 0) |
| 361 | s = "Error"; /* Sometimes errno didn't get set */ |
Barry Warsaw | 97d9515 | 1998-07-23 16:05:56 +0000 | [diff] [blame] | 362 | else |
Guido van Rossum | e0e5982 | 1998-10-14 20:38:13 +0000 | [diff] [blame] | 363 | s = strerror(i); |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 364 | message = PyUnicode_DecodeUTF8(s, strlen(s), "ignore"); |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 365 | #else |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 366 | if (i == 0) |
| 367 | message = PyUnicode_FromString("Error"); /* Sometimes errno didn't get set */ |
| 368 | else |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 369 | { |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 370 | /* Note that the Win32 errors do not lineup with the |
| 371 | errno error. So if the error is in the MSVC error |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 372 | table, we use it, otherwise we assume it really _is_ |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 373 | a Win32 error code |
| 374 | */ |
Guido van Rossum | 584b16a | 2000-02-21 16:50:31 +0000 | [diff] [blame] | 375 | if (i > 0 && i < _sys_nerr) { |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 376 | message = PyUnicode_FromString(_sys_errlist[i]); |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 377 | } |
| 378 | else { |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 379 | int len = FormatMessageW( |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 380 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| 381 | FORMAT_MESSAGE_FROM_SYSTEM | |
| 382 | FORMAT_MESSAGE_IGNORE_INSERTS, |
| 383 | NULL, /* no message source */ |
| 384 | i, |
| 385 | MAKELANGID(LANG_NEUTRAL, |
| 386 | SUBLANG_DEFAULT), |
| 387 | /* Default language */ |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 388 | (LPWSTR) &s_buf, |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 389 | 0, /* size not used */ |
| 390 | NULL); /* no args */ |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 391 | if (len==0) { |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 392 | /* Only ever seen this in out-of-mem |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 393 | situations */ |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 394 | s_buf = NULL; |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 395 | message = PyUnicode_FromFormat("Windows Error 0x%X", i); |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 396 | } else { |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 397 | /* remove trailing cr/lf and dots */ |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 398 | while (len > 0 && (s_buf[len-1] <= L' ' || s_buf[len-1] == L'.')) |
| 399 | s_buf[--len] = L'\0'; |
| 400 | message = PyUnicode_FromUnicode(s_buf, len); |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 401 | } |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 402 | } |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 403 | } |
Martin v. Löwis | 3484a18 | 2002-03-09 12:07:51 +0000 | [diff] [blame] | 404 | #endif /* Unix/Windows */ |
| 405 | #endif /* PLAN 9*/ |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 406 | |
| 407 | if (message == NULL) |
| 408 | { |
| 409 | #ifdef MS_WINDOWS |
| 410 | LocalFree(s_buf); |
| 411 | #endif |
| 412 | return NULL; |
| 413 | } |
| 414 | |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 415 | if (filenameObject != NULL) |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 416 | v = Py_BuildValue("(iOO)", i, message, filenameObject); |
Guido van Rossum | e0e5982 | 1998-10-14 20:38:13 +0000 | [diff] [blame] | 417 | else |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 418 | v = Py_BuildValue("(iO)", i, message); |
| 419 | Py_DECREF(message); |
| 420 | |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 421 | if (v != NULL) { |
Guido van Rossum | 373c869 | 1997-04-29 18:22:47 +0000 | [diff] [blame] | 422 | PyErr_SetObject(exc, v); |
| 423 | Py_DECREF(v); |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 424 | } |
Martin v. Löwis | 6238d2b | 2002-06-30 15:26:10 +0000 | [diff] [blame] | 425 | #ifdef MS_WINDOWS |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 426 | LocalFree(s_buf); |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 427 | #endif |
Guido van Rossum | 7d310eb | 1990-10-14 20:00:05 +0000 | [diff] [blame] | 428 | return NULL; |
| 429 | } |
Guido van Rossum | 743007d | 1999-04-21 15:27:31 +0000 | [diff] [blame] | 430 | |
Barry Warsaw | 97d9515 | 1998-07-23 16:05:56 +0000 | [diff] [blame] | 431 | |
| 432 | PyObject * |
Neal Norwitz | b382b84 | 2007-08-24 20:00:37 +0000 | [diff] [blame] | 433 | PyErr_SetFromErrnoWithFilename(PyObject *exc, const char *filename) |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 434 | { |
Neal Norwitz | cd79596 | 2007-08-24 19:54:13 +0000 | [diff] [blame] | 435 | PyObject *name = filename ? PyUnicode_FromString(filename) : NULL; |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 436 | PyObject *result = PyErr_SetFromErrnoWithFilenameObject(exc, name); |
Mark Hammond | da7efaa | 2002-10-04 00:09:38 +0000 | [diff] [blame] | 437 | Py_XDECREF(name); |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 438 | return result; |
| 439 | } |
| 440 | |
| 441 | #ifdef Py_WIN_WIDE_FILENAMES |
| 442 | PyObject * |
Neal Norwitz | b382b84 | 2007-08-24 20:00:37 +0000 | [diff] [blame] | 443 | PyErr_SetFromErrnoWithUnicodeFilename(PyObject *exc, const Py_UNICODE *filename) |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 444 | { |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 445 | PyObject *name = filename ? |
| 446 | PyUnicode_FromUnicode(filename, wcslen(filename)) : |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 447 | NULL; |
| 448 | PyObject *result = PyErr_SetFromErrnoWithFilenameObject(exc, name); |
| 449 | Py_XDECREF(name); |
| 450 | return result; |
| 451 | } |
| 452 | #endif /* Py_WIN_WIDE_FILENAMES */ |
| 453 | |
| 454 | PyObject * |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 455 | PyErr_SetFromErrno(PyObject *exc) |
Barry Warsaw | 97d9515 | 1998-07-23 16:05:56 +0000 | [diff] [blame] | 456 | { |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 457 | return PyErr_SetFromErrnoWithFilenameObject(exc, NULL); |
Barry Warsaw | 97d9515 | 1998-07-23 16:05:56 +0000 | [diff] [blame] | 458 | } |
Guido van Rossum | 683a072 | 1990-10-21 22:09:12 +0000 | [diff] [blame] | 459 | |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 460 | #ifdef MS_WINDOWS |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 461 | /* Windows specific error code handling */ |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 462 | PyObject *PyErr_SetExcFromWindowsErrWithFilenameObject( |
Thomas Heller | 085358a | 2002-07-29 14:27:41 +0000 | [diff] [blame] | 463 | PyObject *exc, |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 464 | int ierr, |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 465 | PyObject *filenameObject) |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 466 | { |
| 467 | int len; |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 468 | WCHAR *s_buf = NULL; /* Free via LocalFree */ |
| 469 | PyObject *message; |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 470 | PyObject *v; |
| 471 | DWORD err = (DWORD)ierr; |
| 472 | if (err==0) err = GetLastError(); |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 473 | len = FormatMessageW( |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 474 | /* Error API error */ |
| 475 | FORMAT_MESSAGE_ALLOCATE_BUFFER | |
| 476 | FORMAT_MESSAGE_FROM_SYSTEM | |
| 477 | FORMAT_MESSAGE_IGNORE_INSERTS, |
| 478 | NULL, /* no message source */ |
| 479 | err, |
| 480 | MAKELANGID(LANG_NEUTRAL, |
| 481 | SUBLANG_DEFAULT), /* Default language */ |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 482 | (LPWSTR) &s_buf, |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 483 | 0, /* size not used */ |
| 484 | NULL); /* no args */ |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 485 | if (len==0) { |
| 486 | /* Only seen this in out of mem situations */ |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 487 | message = PyUnicode_FromFormat("Windows Error 0x%X", err); |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 488 | s_buf = NULL; |
| 489 | } else { |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 490 | /* remove trailing cr/lf and dots */ |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 491 | while (len > 0 && (s_buf[len-1] <= L' ' || s_buf[len-1] == L'.')) |
| 492 | s_buf[--len] = L'\0'; |
| 493 | message = PyUnicode_FromUnicode(s_buf, len); |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 494 | } |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 495 | |
| 496 | if (message == NULL) |
| 497 | { |
| 498 | LocalFree(s_buf); |
| 499 | return NULL; |
| 500 | } |
| 501 | |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 502 | if (filenameObject != NULL) |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 503 | v = Py_BuildValue("(iOO)", err, message, filenameObject); |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 504 | else |
Martin v. Löwis | 5d12abe | 2007-09-03 07:40:24 +0000 | [diff] [blame] | 505 | v = Py_BuildValue("(iO)", err, message); |
| 506 | Py_DECREF(message); |
| 507 | |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 508 | if (v != NULL) { |
Thomas Heller | 085358a | 2002-07-29 14:27:41 +0000 | [diff] [blame] | 509 | PyErr_SetObject(exc, v); |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 510 | Py_DECREF(v); |
| 511 | } |
Mark Hammond | 3d61a06 | 2002-10-04 00:13:02 +0000 | [diff] [blame] | 512 | LocalFree(s_buf); |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 513 | return NULL; |
| 514 | } |
| 515 | |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 516 | PyObject *PyErr_SetExcFromWindowsErrWithFilename( |
| 517 | PyObject *exc, |
| 518 | int ierr, |
| 519 | const char *filename) |
| 520 | { |
Neal Norwitz | cd79596 | 2007-08-24 19:54:13 +0000 | [diff] [blame] | 521 | PyObject *name = filename ? PyUnicode_FromString(filename) : NULL; |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 522 | PyObject *ret = PyErr_SetExcFromWindowsErrWithFilenameObject(exc, |
| 523 | ierr, |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 524 | name); |
| 525 | Py_XDECREF(name); |
| 526 | return ret; |
| 527 | } |
| 528 | |
| 529 | #ifdef Py_WIN_WIDE_FILENAMES |
| 530 | PyObject *PyErr_SetExcFromWindowsErrWithUnicodeFilename( |
| 531 | PyObject *exc, |
| 532 | int ierr, |
| 533 | const Py_UNICODE *filename) |
| 534 | { |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 535 | PyObject *name = filename ? |
| 536 | PyUnicode_FromUnicode(filename, wcslen(filename)) : |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 537 | NULL; |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 538 | PyObject *ret = PyErr_SetExcFromWindowsErrWithFilenameObject(exc, |
| 539 | ierr, |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 540 | name); |
| 541 | Py_XDECREF(name); |
| 542 | return ret; |
| 543 | } |
| 544 | #endif /* Py_WIN_WIDE_FILENAMES */ |
| 545 | |
Thomas Heller | 085358a | 2002-07-29 14:27:41 +0000 | [diff] [blame] | 546 | PyObject *PyErr_SetExcFromWindowsErr(PyObject *exc, int ierr) |
| 547 | { |
| 548 | return PyErr_SetExcFromWindowsErrWithFilename(exc, ierr, NULL); |
| 549 | } |
| 550 | |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 551 | PyObject *PyErr_SetFromWindowsErr(int ierr) |
| 552 | { |
Thomas Heller | 085358a | 2002-07-29 14:27:41 +0000 | [diff] [blame] | 553 | return PyErr_SetExcFromWindowsErrWithFilename(PyExc_WindowsError, |
| 554 | ierr, NULL); |
| 555 | } |
| 556 | PyObject *PyErr_SetFromWindowsErrWithFilename( |
| 557 | int ierr, |
| 558 | const char *filename) |
| 559 | { |
Neal Norwitz | cd79596 | 2007-08-24 19:54:13 +0000 | [diff] [blame] | 560 | PyObject *name = filename ? PyUnicode_FromString(filename) : NULL; |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 561 | PyObject *result = PyErr_SetExcFromWindowsErrWithFilenameObject( |
| 562 | PyExc_WindowsError, |
| 563 | ierr, name); |
Mark Hammond | da7efaa | 2002-10-04 00:09:38 +0000 | [diff] [blame] | 564 | Py_XDECREF(name); |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 565 | return result; |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 566 | } |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 567 | |
| 568 | #ifdef Py_WIN_WIDE_FILENAMES |
| 569 | PyObject *PyErr_SetFromWindowsErrWithUnicodeFilename( |
| 570 | int ierr, |
| 571 | const Py_UNICODE *filename) |
| 572 | { |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 573 | PyObject *name = filename ? |
| 574 | PyUnicode_FromUnicode(filename, wcslen(filename)) : |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 575 | NULL; |
| 576 | PyObject *result = PyErr_SetExcFromWindowsErrWithFilenameObject( |
| 577 | PyExc_WindowsError, |
| 578 | ierr, name); |
Mark Hammond | da7efaa | 2002-10-04 00:09:38 +0000 | [diff] [blame] | 579 | Py_XDECREF(name); |
Mark Hammond | c2e85bd | 2002-10-03 05:10:39 +0000 | [diff] [blame] | 580 | return result; |
| 581 | } |
| 582 | #endif /* Py_WIN_WIDE_FILENAMES */ |
Guido van Rossum | 795e189 | 2000-02-17 15:19:15 +0000 | [diff] [blame] | 583 | #endif /* MS_WINDOWS */ |
| 584 | |
Guido van Rossum | 683a072 | 1990-10-21 22:09:12 +0000 | [diff] [blame] | 585 | void |
Neal Norwitz | b382b84 | 2007-08-24 20:00:37 +0000 | [diff] [blame] | 586 | _PyErr_BadInternalCall(const char *filename, int lineno) |
Fred Drake | 6d63adf | 2000-08-24 22:38:39 +0000 | [diff] [blame] | 587 | { |
| 588 | PyErr_Format(PyExc_SystemError, |
| 589 | "%s:%d: bad argument to internal function", |
| 590 | filename, lineno); |
| 591 | } |
| 592 | |
| 593 | /* Remove the preprocessor macro for PyErr_BadInternalCall() so that we can |
| 594 | export the entry point for existing object code: */ |
| 595 | #undef PyErr_BadInternalCall |
| 596 | void |
Thomas Wouters | f70ef4f | 2000-07-22 18:47:25 +0000 | [diff] [blame] | 597 | PyErr_BadInternalCall(void) |
Guido van Rossum | 683a072 | 1990-10-21 22:09:12 +0000 | [diff] [blame] | 598 | { |
Fred Drake | 6d63adf | 2000-08-24 22:38:39 +0000 | [diff] [blame] | 599 | PyErr_Format(PyExc_SystemError, |
| 600 | "bad argument to internal function"); |
Guido van Rossum | 683a072 | 1990-10-21 22:09:12 +0000 | [diff] [blame] | 601 | } |
Fred Drake | 6d63adf | 2000-08-24 22:38:39 +0000 | [diff] [blame] | 602 | #define PyErr_BadInternalCall() _PyErr_BadInternalCall(__FILE__, __LINE__) |
| 603 | |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 604 | |
| 605 | |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 606 | PyObject * |
| 607 | PyErr_Format(PyObject *exception, const char *format, ...) |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 608 | { |
| 609 | va_list vargs; |
Jeremy Hylton | b69a27e | 2000-09-01 03:49:47 +0000 | [diff] [blame] | 610 | PyObject* string; |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 611 | |
Jeremy Hylton | b69a27e | 2000-09-01 03:49:47 +0000 | [diff] [blame] | 612 | #ifdef HAVE_STDARG_PROTOTYPES |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 613 | va_start(vargs, format); |
Jeremy Hylton | b69a27e | 2000-09-01 03:49:47 +0000 | [diff] [blame] | 614 | #else |
| 615 | va_start(vargs); |
| 616 | #endif |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 617 | |
Walter Dörwald | 573c08c | 2007-05-25 15:46:59 +0000 | [diff] [blame] | 618 | string = PyUnicode_FromFormatV(format, vargs); |
Jeremy Hylton | b69a27e | 2000-09-01 03:49:47 +0000 | [diff] [blame] | 619 | PyErr_SetObject(exception, string); |
| 620 | Py_XDECREF(string); |
Tim Peters | c15c4f1 | 2001-10-02 21:32:07 +0000 | [diff] [blame] | 621 | va_end(vargs); |
Guido van Rossum | 1548bac | 1997-02-14 17:09:47 +0000 | [diff] [blame] | 622 | return NULL; |
| 623 | } |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 624 | |
| 625 | |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 626 | |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 627 | PyObject * |
Neal Norwitz | b382b84 | 2007-08-24 20:00:37 +0000 | [diff] [blame] | 628 | PyErr_NewException(const char *name, PyObject *base, PyObject *dict) |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 629 | { |
Neal Norwitz | b382b84 | 2007-08-24 20:00:37 +0000 | [diff] [blame] | 630 | const char *dot; |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 631 | PyObject *modulename = NULL; |
| 632 | PyObject *classname = NULL; |
| 633 | PyObject *mydict = NULL; |
| 634 | PyObject *bases = NULL; |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 635 | PyObject *result = NULL; |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 636 | dot = strrchr(name, '.'); |
| 637 | if (dot == NULL) { |
| 638 | PyErr_SetString(PyExc_SystemError, |
| 639 | "PyErr_NewException: name must be module.class"); |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 640 | return NULL; |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 641 | } |
| 642 | if (base == NULL) |
| 643 | base = PyExc_Exception; |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 644 | if (dict == NULL) { |
| 645 | dict = mydict = PyDict_New(); |
| 646 | if (dict == NULL) |
| 647 | goto failure; |
| 648 | } |
| 649 | if (PyDict_GetItemString(dict, "__module__") == NULL) { |
Neal Norwitz | cd79596 | 2007-08-24 19:54:13 +0000 | [diff] [blame] | 650 | modulename = PyUnicode_FromStringAndSize(name, |
Thomas Wouters | 89f507f | 2006-12-13 04:49:30 +0000 | [diff] [blame] | 651 | (Py_ssize_t)(dot-name)); |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 652 | if (modulename == NULL) |
| 653 | goto failure; |
| 654 | if (PyDict_SetItemString(dict, "__module__", modulename) != 0) |
| 655 | goto failure; |
| 656 | } |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 657 | if (PyTuple_Check(base)) { |
| 658 | bases = base; |
| 659 | /* INCREF as we create a new ref in the else branch */ |
| 660 | Py_INCREF(bases); |
| 661 | } else { |
| 662 | bases = PyTuple_Pack(1, base); |
| 663 | if (bases == NULL) |
| 664 | goto failure; |
| 665 | } |
| 666 | /* Create a real new-style class. */ |
Guido van Rossum | e845c0f | 2007-11-02 23:07:07 +0000 | [diff] [blame] | 667 | result = PyObject_CallFunction((PyObject *)&PyType_Type, "UOO", |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 668 | dot+1, bases, dict); |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 669 | failure: |
Guido van Rossum | 2ac650f | 1997-10-03 19:50:55 +0000 | [diff] [blame] | 670 | Py_XDECREF(bases); |
| 671 | Py_XDECREF(mydict); |
| 672 | Py_XDECREF(classname); |
| 673 | Py_XDECREF(modulename); |
Guido van Rossum | 7617e05 | 1997-09-16 18:43:50 +0000 | [diff] [blame] | 674 | return result; |
| 675 | } |
Jeremy Hylton | b709df3 | 2000-09-01 02:47:25 +0000 | [diff] [blame] | 676 | |
| 677 | /* Call when an exception has occurred but there is no way for Python |
| 678 | to handle it. Examples: exception in __del__ or during GC. */ |
| 679 | void |
| 680 | PyErr_WriteUnraisable(PyObject *obj) |
| 681 | { |
| 682 | PyObject *f, *t, *v, *tb; |
| 683 | PyErr_Fetch(&t, &v, &tb); |
| 684 | f = PySys_GetObject("stderr"); |
Christian Heimes | 2be0373 | 2007-11-15 02:26:46 +0000 | [diff] [blame] | 685 | if (f != NULL && f != Py_None) { |
Jeremy Hylton | b709df3 | 2000-09-01 02:47:25 +0000 | [diff] [blame] | 686 | PyFile_WriteString("Exception ", f); |
| 687 | if (t) { |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 688 | PyObject* moduleName; |
Guido van Rossum | d8faa36 | 2007-04-27 19:54:29 +0000 | [diff] [blame] | 689 | char* className; |
| 690 | assert(PyExceptionClass_Check(t)); |
| 691 | className = PyExceptionClass_Name(t); |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 692 | if (className != NULL) { |
| 693 | char *dot = strrchr(className, '.'); |
| 694 | if (dot != NULL) |
| 695 | className = dot+1; |
| 696 | } |
| 697 | |
| 698 | moduleName = PyObject_GetAttrString(t, "__module__"); |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 699 | if (moduleName == NULL) |
| 700 | PyFile_WriteString("<unknown>", f); |
| 701 | else { |
Neal Norwitz | cd79596 | 2007-08-24 19:54:13 +0000 | [diff] [blame] | 702 | char* modstr = PyUnicode_AsString(moduleName); |
Neal Norwitz | 2633c69 | 2007-02-26 22:22:47 +0000 | [diff] [blame] | 703 | if (modstr && |
Georg Brandl | 1a3284e | 2007-12-02 09:40:06 +0000 | [diff] [blame] | 704 | strcmp(modstr, "builtins") != 0) |
Brett Cannon | bf36409 | 2006-03-01 04:25:17 +0000 | [diff] [blame] | 705 | { |
| 706 | PyFile_WriteString(modstr, f); |
| 707 | PyFile_WriteString(".", f); |
| 708 | } |
| 709 | } |
| 710 | if (className == NULL) |
| 711 | PyFile_WriteString("<unknown>", f); |
| 712 | else |
| 713 | PyFile_WriteString(className, f); |
Jeremy Hylton | b709df3 | 2000-09-01 02:47:25 +0000 | [diff] [blame] | 714 | if (v && v != Py_None) { |
| 715 | PyFile_WriteString(": ", f); |
| 716 | PyFile_WriteObject(v, f, 0); |
| 717 | } |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 718 | Py_XDECREF(moduleName); |
Jeremy Hylton | b709df3 | 2000-09-01 02:47:25 +0000 | [diff] [blame] | 719 | } |
| 720 | PyFile_WriteString(" in ", f); |
| 721 | PyFile_WriteObject(obj, f, 0); |
| 722 | PyFile_WriteString(" ignored\n", f); |
| 723 | PyErr_Clear(); /* Just in case */ |
| 724 | } |
| 725 | Py_XDECREF(t); |
| 726 | Py_XDECREF(v); |
| 727 | Py_XDECREF(tb); |
| 728 | } |
Guido van Rossum | cfd42b5 | 2000-12-15 21:58:52 +0000 | [diff] [blame] | 729 | |
Armin Rigo | 092381a | 2003-10-25 14:29:27 +0000 | [diff] [blame] | 730 | extern PyObject *PyModule_GetWarningsModule(void); |
Guido van Rossum | cfd42b5 | 2000-12-15 21:58:52 +0000 | [diff] [blame] | 731 | |
Guido van Rossum | 2fd4565 | 2001-02-28 21:46:24 +0000 | [diff] [blame] | 732 | |
Martin v. Löwis | cfeb3b6 | 2002-03-03 21:30:27 +0000 | [diff] [blame] | 733 | /* Set file and line information for the current exception. |
| 734 | If the exception is not a SyntaxError, also sets additional attributes |
| 735 | to make printing of exceptions believe it is a syntax error. */ |
Guido van Rossum | 2fd4565 | 2001-02-28 21:46:24 +0000 | [diff] [blame] | 736 | |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 737 | void |
Martin v. Löwis | 95292d6 | 2002-12-11 14:04:59 +0000 | [diff] [blame] | 738 | PyErr_SyntaxLocation(const char *filename, int lineno) |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 739 | { |
| 740 | PyObject *exc, *v, *tb, *tmp; |
| 741 | |
| 742 | /* add attributes for the line number and filename for the error */ |
| 743 | PyErr_Fetch(&exc, &v, &tb); |
| 744 | PyErr_NormalizeException(&exc, &v, &tb); |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 745 | /* XXX check that it is, indeed, a syntax error. It might not |
| 746 | * be, though. */ |
Christian Heimes | 217cfd1 | 2007-12-02 14:31:20 +0000 | [diff] [blame] | 747 | tmp = PyLong_FromLong(lineno); |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 748 | if (tmp == NULL) |
| 749 | PyErr_Clear(); |
| 750 | else { |
| 751 | if (PyObject_SetAttrString(v, "lineno", tmp)) |
| 752 | PyErr_Clear(); |
| 753 | Py_DECREF(tmp); |
| 754 | } |
| 755 | if (filename != NULL) { |
Neal Norwitz | cd79596 | 2007-08-24 19:54:13 +0000 | [diff] [blame] | 756 | tmp = PyUnicode_FromString(filename); |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 757 | if (tmp == NULL) |
| 758 | PyErr_Clear(); |
| 759 | else { |
| 760 | if (PyObject_SetAttrString(v, "filename", tmp)) |
| 761 | PyErr_Clear(); |
| 762 | Py_DECREF(tmp); |
| 763 | } |
| 764 | |
| 765 | tmp = PyErr_ProgramText(filename, lineno); |
| 766 | if (tmp) { |
Thomas Wouters | 4d70c3d | 2006-06-08 14:42:34 +0000 | [diff] [blame] | 767 | if (PyObject_SetAttrString(v, "text", tmp)) |
| 768 | PyErr_Clear(); |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 769 | Py_DECREF(tmp); |
| 770 | } |
| 771 | } |
Martin v. Löwis | cfeb3b6 | 2002-03-03 21:30:27 +0000 | [diff] [blame] | 772 | if (PyObject_SetAttrString(v, "offset", Py_None)) { |
| 773 | PyErr_Clear(); |
| 774 | } |
| 775 | if (exc != PyExc_SyntaxError) { |
| 776 | if (!PyObject_HasAttrString(v, "msg")) { |
| 777 | tmp = PyObject_Str(v); |
| 778 | if (tmp) { |
| 779 | if (PyObject_SetAttrString(v, "msg", tmp)) |
| 780 | PyErr_Clear(); |
| 781 | Py_DECREF(tmp); |
| 782 | } else { |
| 783 | PyErr_Clear(); |
| 784 | } |
| 785 | } |
| 786 | if (!PyObject_HasAttrString(v, "print_file_and_line")) { |
| 787 | if (PyObject_SetAttrString(v, "print_file_and_line", |
| 788 | Py_None)) |
| 789 | PyErr_Clear(); |
| 790 | } |
| 791 | } |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 792 | PyErr_Restore(exc, v, tb); |
| 793 | } |
| 794 | |
Guido van Rossum | ebe8f8a | 2007-10-10 18:53:36 +0000 | [diff] [blame] | 795 | /* Attempt to load the line of text that the exception refers to. If it |
| 796 | fails, it will return NULL but will not set an exception. |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 797 | |
| 798 | XXX The functionality of this function is quite similar to the |
Guido van Rossum | ebe8f8a | 2007-10-10 18:53:36 +0000 | [diff] [blame] | 799 | functionality in tb_displayline() in traceback.c. */ |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 800 | |
| 801 | PyObject * |
Martin v. Löwis | 95292d6 | 2002-12-11 14:04:59 +0000 | [diff] [blame] | 802 | PyErr_ProgramText(const char *filename, int lineno) |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 803 | { |
| 804 | FILE *fp; |
| 805 | int i; |
| 806 | char linebuf[1000]; |
| 807 | |
Tim Peters | a7444f4 | 2006-02-27 23:29:46 +0000 | [diff] [blame] | 808 | if (filename == NULL || *filename == '\0' || lineno <= 0) |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 809 | return NULL; |
Jack Jansen | 7b8c754 | 2002-04-14 20:12:41 +0000 | [diff] [blame] | 810 | fp = fopen(filename, "r" PY_STDIOTEXTMODE); |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 811 | if (fp == NULL) |
| 812 | return NULL; |
| 813 | for (i = 0; i < lineno; i++) { |
| 814 | char *pLastChar = &linebuf[sizeof(linebuf) - 2]; |
| 815 | do { |
| 816 | *pLastChar = '\0'; |
Guido van Rossum | ebe8f8a | 2007-10-10 18:53:36 +0000 | [diff] [blame] | 817 | if (Py_UniversalNewlineFgets(linebuf, sizeof linebuf, |
| 818 | fp, NULL) == NULL) |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 819 | break; |
| 820 | /* fgets read *something*; if it didn't get as |
| 821 | far as pLastChar, it must have found a newline |
Thomas Wouters | 477c8d5 | 2006-05-27 19:21:47 +0000 | [diff] [blame] | 822 | or hit the end of the file; if pLastChar is \n, |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 823 | it obviously found a newline; else we haven't |
| 824 | yet seen a newline, so must continue */ |
| 825 | } while (*pLastChar != '\0' && *pLastChar != '\n'); |
| 826 | } |
| 827 | fclose(fp); |
| 828 | if (i == lineno) { |
| 829 | char *p = linebuf; |
Guido van Rossum | ebe8f8a | 2007-10-10 18:53:36 +0000 | [diff] [blame] | 830 | PyObject *res; |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 831 | while (*p == ' ' || *p == '\t' || *p == '\014') |
| 832 | p++; |
Guido van Rossum | ebe8f8a | 2007-10-10 18:53:36 +0000 | [diff] [blame] | 833 | res = PyUnicode_FromString(p); |
| 834 | if (res == NULL) |
| 835 | PyErr_Clear(); |
| 836 | return res; |
Jeremy Hylton | ad3d3f2 | 2001-02-28 17:47:12 +0000 | [diff] [blame] | 837 | } |
| 838 | return NULL; |
| 839 | } |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 840 | |
| 841 | #ifdef __cplusplus |
| 842 | } |
| 843 | #endif |