diff options
author | monster <monster@ydb.tech> | 2022-07-07 14:41:37 +0300 |
---|---|---|
committer | monster <monster@ydb.tech> | 2022-07-07 14:41:37 +0300 |
commit | 06e5c21a835c0e923506c4ff27929f34e00761c2 (patch) | |
tree | 75efcbc6854ef9bd476eb8bf00cc5c900da436a2 /contrib/tools/python3/src/Python/errors.c | |
parent | 03f024c4412e3aa613bb543cf1660176320ba8f4 (diff) | |
download | ydb-06e5c21a835c0e923506c4ff27929f34e00761c2.tar.gz |
fix ya.make
Diffstat (limited to 'contrib/tools/python3/src/Python/errors.c')
-rw-r--r-- | contrib/tools/python3/src/Python/errors.c | 1808 |
1 files changed, 0 insertions, 1808 deletions
diff --git a/contrib/tools/python3/src/Python/errors.c b/contrib/tools/python3/src/Python/errors.c deleted file mode 100644 index bc1b55e440..0000000000 --- a/contrib/tools/python3/src/Python/errors.c +++ /dev/null @@ -1,1808 +0,0 @@ - -/* Error handling */ - -#include "Python.h" -#include "pycore_initconfig.h" -#include "pycore_object.h" // _PyType_GetQualName -#include "pycore_pyerrors.h" -#include "pycore_pystate.h" // _PyThreadState_GET() -#include "pycore_sysmodule.h" -#include "pycore_traceback.h" - -#ifndef __STDC__ -#ifndef MS_WINDOWS -extern char *strerror(int); -#endif -#endif - -#ifdef MS_WINDOWS -#include <windows.h> -#include <winbase.h> -#endif - -#include <ctype.h> - -#ifdef __cplusplus -extern "C" { -#endif - -_Py_IDENTIFIER(__module__); -_Py_IDENTIFIER(builtins); -_Py_IDENTIFIER(stderr); -_Py_IDENTIFIER(flush); - -/* Forward declarations */ -static PyObject * -_PyErr_FormatV(PyThreadState *tstate, PyObject *exception, - const char *format, va_list vargs); - - -void -_PyErr_Restore(PyThreadState *tstate, PyObject *type, PyObject *value, - PyObject *traceback) -{ - PyObject *oldtype, *oldvalue, *oldtraceback; - - if (traceback != NULL && !PyTraceBack_Check(traceback)) { - /* XXX Should never happen -- fatal error instead? */ - /* Well, it could be None. */ - Py_DECREF(traceback); - traceback = NULL; - } - - /* Save these in locals to safeguard against recursive - invocation through Py_XDECREF */ - oldtype = tstate->curexc_type; - oldvalue = tstate->curexc_value; - oldtraceback = tstate->curexc_traceback; - - tstate->curexc_type = type; - tstate->curexc_value = value; - tstate->curexc_traceback = traceback; - - Py_XDECREF(oldtype); - Py_XDECREF(oldvalue); - Py_XDECREF(oldtraceback); -} - -void -PyErr_Restore(PyObject *type, PyObject *value, PyObject *traceback) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_Restore(tstate, type, value, traceback); -} - - -_PyErr_StackItem * -_PyErr_GetTopmostException(PyThreadState *tstate) -{ - _PyErr_StackItem *exc_info = tstate->exc_info; - while ((exc_info->exc_type == NULL || exc_info->exc_type == Py_None) && - exc_info->previous_item != NULL) - { - exc_info = exc_info->previous_item; - } - return exc_info; -} - -static PyObject* -_PyErr_CreateException(PyObject *exception_type, PyObject *value) -{ - PyObject *exc; - - if (value == NULL || value == Py_None) { - exc = _PyObject_CallNoArg(exception_type); - } - else if (PyTuple_Check(value)) { - exc = PyObject_Call(exception_type, value, NULL); - } - else { - exc = PyObject_CallOneArg(exception_type, value); - } - - if (exc != NULL && !PyExceptionInstance_Check(exc)) { - PyErr_Format(PyExc_TypeError, - "calling %R should have returned an instance of " - "BaseException, not %s", - exception_type, Py_TYPE(exc)->tp_name); - Py_CLEAR(exc); - } - - return exc; -} - -void -_PyErr_SetObject(PyThreadState *tstate, PyObject *exception, PyObject *value) -{ - PyObject *exc_value; - PyObject *tb = NULL; - - if (exception != NULL && - !PyExceptionClass_Check(exception)) { - _PyErr_Format(tstate, PyExc_SystemError, - "_PyErr_SetObject: " - "exception %R is not a BaseException subclass", - exception); - return; - } - - Py_XINCREF(value); - exc_value = _PyErr_GetTopmostException(tstate)->exc_value; - if (exc_value != NULL && exc_value != Py_None) { - /* Implicit exception chaining */ - Py_INCREF(exc_value); - if (value == NULL || !PyExceptionInstance_Check(value)) { - /* We must normalize the value right now */ - PyObject *fixed_value; - - /* Issue #23571: functions must not be called with an - exception set */ - _PyErr_Clear(tstate); - - fixed_value = _PyErr_CreateException(exception, value); - Py_XDECREF(value); - if (fixed_value == NULL) { - Py_DECREF(exc_value); - return; - } - - value = fixed_value; - } - - /* Avoid creating new reference cycles through the - context chain, while taking care not to hang on - pre-existing ones. - This is O(chain length) but context chains are - usually very short. Sensitive readers may try - to inline the call to PyException_GetContext. */ - if (exc_value != value) { - PyObject *o = exc_value, *context; - PyObject *slow_o = o; /* Floyd's cycle detection algo */ - int slow_update_toggle = 0; - while ((context = PyException_GetContext(o))) { - Py_DECREF(context); - if (context == value) { - PyException_SetContext(o, NULL); - break; - } - o = context; - if (o == slow_o) { - /* pre-existing cycle - all exceptions on the - path were visited and checked. */ - break; - } - if (slow_update_toggle) { - slow_o = PyException_GetContext(slow_o); - Py_DECREF(slow_o); - } - slow_update_toggle = !slow_update_toggle; - } - PyException_SetContext(value, exc_value); - } - else { - Py_DECREF(exc_value); - } - } - if (value != NULL && PyExceptionInstance_Check(value)) - tb = PyException_GetTraceback(value); - Py_XINCREF(exception); - _PyErr_Restore(tstate, exception, value, tb); -} - -void -PyErr_SetObject(PyObject *exception, PyObject *value) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_SetObject(tstate, exception, value); -} - -/* Set a key error with the specified argument, wrapping it in a - * tuple automatically so that tuple keys are not unpacked as the - * exception arguments. */ -void -_PyErr_SetKeyError(PyObject *arg) -{ - PyThreadState *tstate = _PyThreadState_GET(); - PyObject *tup = PyTuple_Pack(1, arg); - if (!tup) { - /* caller will expect error to be set anyway */ - return; - } - _PyErr_SetObject(tstate, PyExc_KeyError, tup); - Py_DECREF(tup); -} - -void -_PyErr_SetNone(PyThreadState *tstate, PyObject *exception) -{ - _PyErr_SetObject(tstate, exception, (PyObject *)NULL); -} - - -void -PyErr_SetNone(PyObject *exception) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_SetNone(tstate, exception); -} - - -void -_PyErr_SetString(PyThreadState *tstate, PyObject *exception, - const char *string) -{ - PyObject *value = PyUnicode_FromString(string); - _PyErr_SetObject(tstate, exception, value); - Py_XDECREF(value); -} - -void -PyErr_SetString(PyObject *exception, const char *string) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_SetString(tstate, exception, string); -} - - -PyObject* _Py_HOT_FUNCTION -PyErr_Occurred(void) -{ - /* The caller must hold the GIL. */ - assert(PyGILState_Check()); - - PyThreadState *tstate = _PyThreadState_GET(); - return _PyErr_Occurred(tstate); -} - - -int -PyErr_GivenExceptionMatches(PyObject *err, PyObject *exc) -{ - if (err == NULL || exc == NULL) { - /* maybe caused by "import exceptions" that failed early on */ - return 0; - } - if (PyTuple_Check(exc)) { - Py_ssize_t i, n; - n = PyTuple_Size(exc); - for (i = 0; i < n; i++) { - /* Test recursively */ - if (PyErr_GivenExceptionMatches( - err, PyTuple_GET_ITEM(exc, i))) - { - return 1; - } - } - return 0; - } - /* err might be an instance, so check its class. */ - if (PyExceptionInstance_Check(err)) - err = PyExceptionInstance_Class(err); - - if (PyExceptionClass_Check(err) && PyExceptionClass_Check(exc)) { - return PyType_IsSubtype((PyTypeObject *)err, (PyTypeObject *)exc); - } - - return err == exc; -} - - -int -_PyErr_ExceptionMatches(PyThreadState *tstate, PyObject *exc) -{ - return PyErr_GivenExceptionMatches(_PyErr_Occurred(tstate), exc); -} - - -int -PyErr_ExceptionMatches(PyObject *exc) -{ - PyThreadState *tstate = _PyThreadState_GET(); - return _PyErr_ExceptionMatches(tstate, exc); -} - - -#ifndef Py_NORMALIZE_RECURSION_LIMIT -#define Py_NORMALIZE_RECURSION_LIMIT 32 -#endif - -/* Used in many places to normalize a raised exception, including in - eval_code2(), do_raise(), and PyErr_Print() - - XXX: should PyErr_NormalizeException() also call - PyException_SetTraceback() with the resulting value and tb? -*/ -void -_PyErr_NormalizeException(PyThreadState *tstate, PyObject **exc, - PyObject **val, PyObject **tb) -{ - int recursion_depth = 0; - tstate->recursion_headroom++; - PyObject *type, *value, *initial_tb; - - restart: - type = *exc; - if (type == NULL) { - /* There was no exception, so nothing to do. */ - tstate->recursion_headroom--; - return; - } - - value = *val; - /* If PyErr_SetNone() was used, the value will have been actually - set to NULL. - */ - if (!value) { - value = Py_None; - Py_INCREF(value); - } - - /* Normalize the exception so that if the type is a class, the - value will be an instance. - */ - if (PyExceptionClass_Check(type)) { - PyObject *inclass = NULL; - int is_subclass = 0; - - if (PyExceptionInstance_Check(value)) { - inclass = PyExceptionInstance_Class(value); - is_subclass = PyObject_IsSubclass(inclass, type); - if (is_subclass < 0) { - goto error; - } - } - - /* If the value was not an instance, or is not an instance - whose class is (or is derived from) type, then use the - value as an argument to instantiation of the type - class. - */ - if (!is_subclass) { - PyObject *fixed_value = _PyErr_CreateException(type, value); - if (fixed_value == NULL) { - goto error; - } - Py_DECREF(value); - value = fixed_value; - } - /* If the class of the instance doesn't exactly match the - class of the type, believe the instance. - */ - else if (inclass != type) { - Py_INCREF(inclass); - Py_DECREF(type); - type = inclass; - } - } - *exc = type; - *val = value; - tstate->recursion_headroom--; - return; - - error: - Py_DECREF(type); - Py_DECREF(value); - recursion_depth++; - if (recursion_depth == Py_NORMALIZE_RECURSION_LIMIT) { - _PyErr_SetString(tstate, PyExc_RecursionError, - "maximum recursion depth exceeded " - "while normalizing an exception"); - } - /* If the new exception doesn't set a traceback and the old - exception had a traceback, use the old traceback for the - new exception. It's better than nothing. - */ - initial_tb = *tb; - _PyErr_Fetch(tstate, exc, val, tb); - assert(*exc != NULL); - if (initial_tb != NULL) { - if (*tb == NULL) - *tb = initial_tb; - else - Py_DECREF(initial_tb); - } - /* Abort when Py_NORMALIZE_RECURSION_LIMIT has been exceeded, and the - corresponding RecursionError could not be normalized, and the - MemoryError raised when normalize this RecursionError could not be - normalized. */ - if (recursion_depth >= Py_NORMALIZE_RECURSION_LIMIT + 2) { - if (PyErr_GivenExceptionMatches(*exc, PyExc_MemoryError)) { - Py_FatalError("Cannot recover from MemoryErrors " - "while normalizing exceptions."); - } - else { - Py_FatalError("Cannot recover from the recursive normalization " - "of an exception."); - } - } - goto restart; -} - - -void -PyErr_NormalizeException(PyObject **exc, PyObject **val, PyObject **tb) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_NormalizeException(tstate, exc, val, tb); -} - - -void -_PyErr_Fetch(PyThreadState *tstate, PyObject **p_type, PyObject **p_value, - PyObject **p_traceback) -{ - *p_type = tstate->curexc_type; - *p_value = tstate->curexc_value; - *p_traceback = tstate->curexc_traceback; - - tstate->curexc_type = NULL; - tstate->curexc_value = NULL; - tstate->curexc_traceback = NULL; -} - - -void -PyErr_Fetch(PyObject **p_type, PyObject **p_value, PyObject **p_traceback) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_Fetch(tstate, p_type, p_value, p_traceback); -} - - -void -_PyErr_Clear(PyThreadState *tstate) -{ - _PyErr_Restore(tstate, NULL, NULL, NULL); -} - - -void -PyErr_Clear(void) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_Clear(tstate); -} - - -void -_PyErr_GetExcInfo(PyThreadState *tstate, - PyObject **p_type, PyObject **p_value, PyObject **p_traceback) -{ - _PyErr_StackItem *exc_info = _PyErr_GetTopmostException(tstate); - *p_type = exc_info->exc_type; - *p_value = exc_info->exc_value; - *p_traceback = exc_info->exc_traceback; - - Py_XINCREF(*p_type); - Py_XINCREF(*p_value); - Py_XINCREF(*p_traceback); -} - - -void -PyErr_GetExcInfo(PyObject **p_type, PyObject **p_value, PyObject **p_traceback) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_GetExcInfo(tstate, p_type, p_value, p_traceback); -} - -void -PyErr_SetExcInfo(PyObject *p_type, PyObject *p_value, PyObject *p_traceback) -{ - PyObject *oldtype, *oldvalue, *oldtraceback; - PyThreadState *tstate = _PyThreadState_GET(); - - oldtype = tstate->exc_info->exc_type; - oldvalue = tstate->exc_info->exc_value; - oldtraceback = tstate->exc_info->exc_traceback; - - tstate->exc_info->exc_type = p_type; - tstate->exc_info->exc_value = p_value; - tstate->exc_info->exc_traceback = p_traceback; - - Py_XDECREF(oldtype); - Py_XDECREF(oldvalue); - Py_XDECREF(oldtraceback); -} - -/* Like PyErr_Restore(), but if an exception is already set, - set the context associated with it. - - The caller is responsible for ensuring that this call won't create - any cycles in the exception context chain. */ -void -_PyErr_ChainExceptions(PyObject *exc, PyObject *val, PyObject *tb) -{ - if (exc == NULL) - return; - - PyThreadState *tstate = _PyThreadState_GET(); - - if (!PyExceptionClass_Check(exc)) { - _PyErr_Format(tstate, PyExc_SystemError, - "_PyErr_ChainExceptions: " - "exception %R is not a BaseException subclass", - exc); - return; - } - - if (_PyErr_Occurred(tstate)) { - PyObject *exc2, *val2, *tb2; - _PyErr_Fetch(tstate, &exc2, &val2, &tb2); - _PyErr_NormalizeException(tstate, &exc, &val, &tb); - if (tb != NULL) { - PyException_SetTraceback(val, tb); - Py_DECREF(tb); - } - Py_DECREF(exc); - _PyErr_NormalizeException(tstate, &exc2, &val2, &tb2); - PyException_SetContext(val2, val); - _PyErr_Restore(tstate, exc2, val2, tb2); - } - else { - _PyErr_Restore(tstate, exc, val, tb); - } -} - -/* Set the currently set exception's context to the given exception. - - If the provided exc_info is NULL, then the current Python thread state's - exc_info will be used for the context instead. - - This function can only be called when _PyErr_Occurred() is true. - Also, this function won't create any cycles in the exception context - chain to the extent that _PyErr_SetObject ensures this. */ -void -_PyErr_ChainStackItem(_PyErr_StackItem *exc_info) -{ - PyThreadState *tstate = _PyThreadState_GET(); - assert(_PyErr_Occurred(tstate)); - - int exc_info_given; - if (exc_info == NULL) { - exc_info_given = 0; - exc_info = tstate->exc_info; - } else { - exc_info_given = 1; - } - if (exc_info->exc_type == NULL || exc_info->exc_type == Py_None) { - return; - } - - _PyErr_StackItem *saved_exc_info; - if (exc_info_given) { - /* Temporarily set the thread state's exc_info since this is what - _PyErr_SetObject uses for implicit exception chaining. */ - saved_exc_info = tstate->exc_info; - tstate->exc_info = exc_info; - } - - PyObject *exc, *val, *tb; - _PyErr_Fetch(tstate, &exc, &val, &tb); - - PyObject *exc2, *val2, *tb2; - exc2 = exc_info->exc_type; - val2 = exc_info->exc_value; - tb2 = exc_info->exc_traceback; - _PyErr_NormalizeException(tstate, &exc2, &val2, &tb2); - if (tb2 != NULL) { - PyException_SetTraceback(val2, tb2); - } - - /* _PyErr_SetObject sets the context from PyThreadState. */ - _PyErr_SetObject(tstate, exc, val); - Py_DECREF(exc); // since _PyErr_Occurred was true - Py_XDECREF(val); - Py_XDECREF(tb); - - if (exc_info_given) { - tstate->exc_info = saved_exc_info; - } -} - -static PyObject * -_PyErr_FormatVFromCause(PyThreadState *tstate, PyObject *exception, - const char *format, va_list vargs) -{ - PyObject *exc, *val, *val2, *tb; - - assert(_PyErr_Occurred(tstate)); - _PyErr_Fetch(tstate, &exc, &val, &tb); - _PyErr_NormalizeException(tstate, &exc, &val, &tb); - if (tb != NULL) { - PyException_SetTraceback(val, tb); - Py_DECREF(tb); - } - Py_DECREF(exc); - assert(!_PyErr_Occurred(tstate)); - - _PyErr_FormatV(tstate, exception, format, vargs); - - _PyErr_Fetch(tstate, &exc, &val2, &tb); - _PyErr_NormalizeException(tstate, &exc, &val2, &tb); - Py_INCREF(val); - PyException_SetCause(val2, val); - PyException_SetContext(val2, val); - _PyErr_Restore(tstate, exc, val2, tb); - - return NULL; -} - -PyObject * -_PyErr_FormatFromCauseTstate(PyThreadState *tstate, PyObject *exception, - const char *format, ...) -{ - va_list vargs; -#ifdef HAVE_STDARG_PROTOTYPES - va_start(vargs, format); -#else - va_start(vargs); -#endif - _PyErr_FormatVFromCause(tstate, exception, format, vargs); - va_end(vargs); - return NULL; -} - -PyObject * -_PyErr_FormatFromCause(PyObject *exception, const char *format, ...) -{ - PyThreadState *tstate = _PyThreadState_GET(); - va_list vargs; -#ifdef HAVE_STDARG_PROTOTYPES - va_start(vargs, format); -#else - va_start(vargs); -#endif - _PyErr_FormatVFromCause(tstate, exception, format, vargs); - va_end(vargs); - return NULL; -} - -/* Convenience functions to set a type error exception and return 0 */ - -int -PyErr_BadArgument(void) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_SetString(tstate, PyExc_TypeError, - "bad argument type for built-in operation"); - return 0; -} - -PyObject * -_PyErr_NoMemory(PyThreadState *tstate) -{ - if (Py_IS_TYPE(PyExc_MemoryError, NULL)) { - /* PyErr_NoMemory() has been called before PyExc_MemoryError has been - initialized by _PyExc_Init() */ - Py_FatalError("Out of memory and PyExc_MemoryError is not " - "initialized yet"); - } - _PyErr_SetNone(tstate, PyExc_MemoryError); - return NULL; -} - -PyObject * -PyErr_NoMemory(void) -{ - PyThreadState *tstate = _PyThreadState_GET(); - return _PyErr_NoMemory(tstate); -} - -PyObject * -PyErr_SetFromErrnoWithFilenameObject(PyObject *exc, PyObject *filenameObject) -{ - return PyErr_SetFromErrnoWithFilenameObjects(exc, filenameObject, NULL); -} - -PyObject * -PyErr_SetFromErrnoWithFilenameObjects(PyObject *exc, PyObject *filenameObject, PyObject *filenameObject2) -{ - PyThreadState *tstate = _PyThreadState_GET(); - PyObject *message; - PyObject *v, *args; - int i = errno; -#ifdef MS_WINDOWS - WCHAR *s_buf = NULL; -#endif /* Unix/Windows */ - -#ifdef EINTR - if (i == EINTR && PyErr_CheckSignals()) - return NULL; -#endif - -#ifndef MS_WINDOWS - if (i != 0) { - const char *s = strerror(i); - message = PyUnicode_DecodeLocale(s, "surrogateescape"); - } - else { - /* Sometimes errno didn't get set */ - message = PyUnicode_FromString("Error"); - } -#else - if (i == 0) - message = PyUnicode_FromString("Error"); /* Sometimes errno didn't get set */ - else - { - /* Note that the Win32 errors do not lineup with the - errno error. So if the error is in the MSVC error - table, we use it, otherwise we assume it really _is_ - a Win32 error code - */ - if (i > 0 && i < _sys_nerr) { - message = PyUnicode_FromString(_sys_errlist[i]); - } - else { - int len = FormatMessageW( - FORMAT_MESSAGE_ALLOCATE_BUFFER | - FORMAT_MESSAGE_FROM_SYSTEM | - FORMAT_MESSAGE_IGNORE_INSERTS, - NULL, /* no message source */ - i, - MAKELANGID(LANG_NEUTRAL, - SUBLANG_DEFAULT), - /* Default language */ - (LPWSTR) &s_buf, - 0, /* size not used */ - NULL); /* no args */ - if (len==0) { - /* Only ever seen this in out-of-mem - situations */ - s_buf = NULL; - message = PyUnicode_FromFormat("Windows Error 0x%x", i); - } else { - /* remove trailing cr/lf and dots */ - while (len > 0 && (s_buf[len-1] <= L' ' || s_buf[len-1] == L'.')) - s_buf[--len] = L'\0'; - message = PyUnicode_FromWideChar(s_buf, len); - } - } - } -#endif /* Unix/Windows */ - - if (message == NULL) - { -#ifdef MS_WINDOWS - LocalFree(s_buf); -#endif - return NULL; - } - - if (filenameObject != NULL) { - if (filenameObject2 != NULL) - args = Py_BuildValue("(iOOiO)", i, message, filenameObject, 0, filenameObject2); - else - args = Py_BuildValue("(iOO)", i, message, filenameObject); - } else { - assert(filenameObject2 == NULL); - args = Py_BuildValue("(iO)", i, message); - } - Py_DECREF(message); - - if (args != NULL) { - v = PyObject_Call(exc, args, NULL); - Py_DECREF(args); - if (v != NULL) { - _PyErr_SetObject(tstate, (PyObject *) Py_TYPE(v), v); - Py_DECREF(v); - } - } -#ifdef MS_WINDOWS - LocalFree(s_buf); -#endif - return NULL; -} - -PyObject * -PyErr_SetFromErrnoWithFilename(PyObject *exc, const char *filename) -{ - PyObject *name = filename ? PyUnicode_DecodeFSDefault(filename) : NULL; - PyObject *result = PyErr_SetFromErrnoWithFilenameObjects(exc, name, NULL); - Py_XDECREF(name); - return result; -} - -#ifdef MS_WINDOWS -PyObject * -PyErr_SetFromErrnoWithUnicodeFilename(PyObject *exc, const Py_UNICODE *filename) -{ - PyObject *name = filename ? PyUnicode_FromWideChar(filename, -1) : NULL; - PyObject *result = PyErr_SetFromErrnoWithFilenameObjects(exc, name, NULL); - Py_XDECREF(name); - return result; -} -#endif /* MS_WINDOWS */ - -PyObject * -PyErr_SetFromErrno(PyObject *exc) -{ - return PyErr_SetFromErrnoWithFilenameObjects(exc, NULL, NULL); -} - -#ifdef MS_WINDOWS -/* Windows specific error code handling */ -PyObject *PyErr_SetExcFromWindowsErrWithFilenameObject( - PyObject *exc, - int ierr, - PyObject *filenameObject) -{ - return PyErr_SetExcFromWindowsErrWithFilenameObjects(exc, ierr, - filenameObject, NULL); -} - -PyObject *PyErr_SetExcFromWindowsErrWithFilenameObjects( - PyObject *exc, - int ierr, - PyObject *filenameObject, - PyObject *filenameObject2) -{ - PyThreadState *tstate = _PyThreadState_GET(); - int len; - WCHAR *s_buf = NULL; /* Free via LocalFree */ - PyObject *message; - PyObject *args, *v; - - DWORD err = (DWORD)ierr; - if (err==0) { - err = GetLastError(); - } - - len = FormatMessageW( - /* Error API error */ - FORMAT_MESSAGE_ALLOCATE_BUFFER | - FORMAT_MESSAGE_FROM_SYSTEM | - FORMAT_MESSAGE_IGNORE_INSERTS, - NULL, /* no message source */ - err, - MAKELANGID(LANG_NEUTRAL, - SUBLANG_DEFAULT), /* Default language */ - (LPWSTR) &s_buf, - 0, /* size not used */ - NULL); /* no args */ - if (len==0) { - /* Only seen this in out of mem situations */ - message = PyUnicode_FromFormat("Windows Error 0x%x", err); - s_buf = NULL; - } else { - /* remove trailing cr/lf and dots */ - while (len > 0 && (s_buf[len-1] <= L' ' || s_buf[len-1] == L'.')) - s_buf[--len] = L'\0'; - message = PyUnicode_FromWideChar(s_buf, len); - } - - if (message == NULL) - { - LocalFree(s_buf); - return NULL; - } - - if (filenameObject == NULL) { - assert(filenameObject2 == NULL); - filenameObject = filenameObject2 = Py_None; - } - else if (filenameObject2 == NULL) - filenameObject2 = Py_None; - /* This is the constructor signature for OSError. - The POSIX translation will be figured out by the constructor. */ - args = Py_BuildValue("(iOOiO)", 0, message, filenameObject, err, filenameObject2); - Py_DECREF(message); - - if (args != NULL) { - v = PyObject_Call(exc, args, NULL); - Py_DECREF(args); - if (v != NULL) { - _PyErr_SetObject(tstate, (PyObject *) Py_TYPE(v), v); - Py_DECREF(v); - } - } - LocalFree(s_buf); - return NULL; -} - -PyObject *PyErr_SetExcFromWindowsErrWithFilename( - PyObject *exc, - int ierr, - const char *filename) -{ - PyObject *name = filename ? PyUnicode_DecodeFSDefault(filename) : NULL; - PyObject *ret = PyErr_SetExcFromWindowsErrWithFilenameObjects(exc, - ierr, - name, - NULL); - Py_XDECREF(name); - return ret; -} - -PyObject *PyErr_SetExcFromWindowsErrWithUnicodeFilename( - PyObject *exc, - int ierr, - const Py_UNICODE *filename) -{ - PyObject *name = filename ? PyUnicode_FromWideChar(filename, -1) : NULL; - PyObject *ret = PyErr_SetExcFromWindowsErrWithFilenameObjects(exc, - ierr, - name, - NULL); - Py_XDECREF(name); - return ret; -} - -PyObject *PyErr_SetExcFromWindowsErr(PyObject *exc, int ierr) -{ - return PyErr_SetExcFromWindowsErrWithFilename(exc, ierr, NULL); -} - -PyObject *PyErr_SetFromWindowsErr(int ierr) -{ - return PyErr_SetExcFromWindowsErrWithFilename(PyExc_OSError, - ierr, NULL); -} - -PyObject *PyErr_SetFromWindowsErrWithFilename( - int ierr, - const char *filename) -{ - PyObject *name = filename ? PyUnicode_DecodeFSDefault(filename) : NULL; - PyObject *result = PyErr_SetExcFromWindowsErrWithFilenameObjects( - PyExc_OSError, - ierr, name, NULL); - Py_XDECREF(name); - return result; -} - -PyObject *PyErr_SetFromWindowsErrWithUnicodeFilename( - int ierr, - const Py_UNICODE *filename) -{ - PyObject *name = filename ? PyUnicode_FromWideChar(filename, -1) : NULL; - PyObject *result = PyErr_SetExcFromWindowsErrWithFilenameObjects( - PyExc_OSError, - ierr, name, NULL); - Py_XDECREF(name); - return result; -} -#endif /* MS_WINDOWS */ - -PyObject * -PyErr_SetImportErrorSubclass(PyObject *exception, PyObject *msg, - PyObject *name, PyObject *path) -{ - PyThreadState *tstate = _PyThreadState_GET(); - int issubclass; - PyObject *kwargs, *error; - - issubclass = PyObject_IsSubclass(exception, PyExc_ImportError); - if (issubclass < 0) { - return NULL; - } - else if (!issubclass) { - _PyErr_SetString(tstate, PyExc_TypeError, - "expected a subclass of ImportError"); - return NULL; - } - - if (msg == NULL) { - _PyErr_SetString(tstate, PyExc_TypeError, - "expected a message argument"); - return NULL; - } - - if (name == NULL) { - name = Py_None; - } - if (path == NULL) { - path = Py_None; - } - - kwargs = PyDict_New(); - if (kwargs == NULL) { - return NULL; - } - if (PyDict_SetItemString(kwargs, "name", name) < 0) { - goto done; - } - if (PyDict_SetItemString(kwargs, "path", path) < 0) { - goto done; - } - - error = PyObject_VectorcallDict(exception, &msg, 1, kwargs); - if (error != NULL) { - _PyErr_SetObject(tstate, (PyObject *)Py_TYPE(error), error); - Py_DECREF(error); - } - -done: - Py_DECREF(kwargs); - return NULL; -} - -PyObject * -PyErr_SetImportError(PyObject *msg, PyObject *name, PyObject *path) -{ - return PyErr_SetImportErrorSubclass(PyExc_ImportError, msg, name, path); -} - -void -_PyErr_BadInternalCall(const char *filename, int lineno) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_Format(tstate, PyExc_SystemError, - "%s:%d: bad argument to internal function", - filename, lineno); -} - -/* Remove the preprocessor macro for PyErr_BadInternalCall() so that we can - export the entry point for existing object code: */ -#undef PyErr_BadInternalCall -void -PyErr_BadInternalCall(void) -{ - assert(0 && "bad argument to internal function"); - PyThreadState *tstate = _PyThreadState_GET(); - _PyErr_SetString(tstate, PyExc_SystemError, - "bad argument to internal function"); -} -#define PyErr_BadInternalCall() _PyErr_BadInternalCall(__FILE__, __LINE__) - - -static PyObject * -_PyErr_FormatV(PyThreadState *tstate, PyObject *exception, - const char *format, va_list vargs) -{ - PyObject* string; - - /* Issue #23571: PyUnicode_FromFormatV() must not be called with an - exception set, it calls arbitrary Python code like PyObject_Repr() */ - _PyErr_Clear(tstate); - - string = PyUnicode_FromFormatV(format, vargs); - - _PyErr_SetObject(tstate, exception, string); - Py_XDECREF(string); - return NULL; -} - - -PyObject * -PyErr_FormatV(PyObject *exception, const char *format, va_list vargs) -{ - PyThreadState *tstate = _PyThreadState_GET(); - return _PyErr_FormatV(tstate, exception, format, vargs); -} - - -PyObject * -_PyErr_Format(PyThreadState *tstate, PyObject *exception, - const char *format, ...) -{ - va_list vargs; -#ifdef HAVE_STDARG_PROTOTYPES - va_start(vargs, format); -#else - va_start(vargs); -#endif - _PyErr_FormatV(tstate, exception, format, vargs); - va_end(vargs); - return NULL; -} - - -PyObject * -PyErr_Format(PyObject *exception, const char *format, ...) -{ - PyThreadState *tstate = _PyThreadState_GET(); - va_list vargs; -#ifdef HAVE_STDARG_PROTOTYPES - va_start(vargs, format); -#else - va_start(vargs); -#endif - _PyErr_FormatV(tstate, exception, format, vargs); - va_end(vargs); - return NULL; -} - - -PyObject * -PyErr_NewException(const char *name, PyObject *base, PyObject *dict) -{ - PyThreadState *tstate = _PyThreadState_GET(); - PyObject *modulename = NULL; - PyObject *mydict = NULL; - PyObject *bases = NULL; - PyObject *result = NULL; - - const char *dot = strrchr(name, '.'); - if (dot == NULL) { - _PyErr_SetString(tstate, PyExc_SystemError, - "PyErr_NewException: name must be module.class"); - return NULL; - } - if (base == NULL) { - base = PyExc_Exception; - } - if (dict == NULL) { - dict = mydict = PyDict_New(); - if (dict == NULL) - goto failure; - } - - int r = _PyDict_ContainsId(dict, &PyId___module__); - if (r < 0) { - goto failure; - } - if (r == 0) { - modulename = PyUnicode_FromStringAndSize(name, - (Py_ssize_t)(dot-name)); - if (modulename == NULL) - goto failure; - if (_PyDict_SetItemId(dict, &PyId___module__, modulename) != 0) - goto failure; - } - if (PyTuple_Check(base)) { - bases = base; - /* INCREF as we create a new ref in the else branch */ - Py_INCREF(bases); - } else { - bases = PyTuple_Pack(1, base); - if (bases == NULL) - goto failure; - } - /* Create a real class. */ - result = PyObject_CallFunction((PyObject *)&PyType_Type, "sOO", - dot+1, bases, dict); - failure: - Py_XDECREF(bases); - Py_XDECREF(mydict); - Py_XDECREF(modulename); - return result; -} - - -/* Create an exception with docstring */ -PyObject * -PyErr_NewExceptionWithDoc(const char *name, const char *doc, - PyObject *base, PyObject *dict) -{ - int result; - PyObject *ret = NULL; - PyObject *mydict = NULL; /* points to the dict only if we create it */ - PyObject *docobj; - - if (dict == NULL) { - dict = mydict = PyDict_New(); - if (dict == NULL) { - return NULL; - } - } - - if (doc != NULL) { - docobj = PyUnicode_FromString(doc); - if (docobj == NULL) - goto failure; - result = PyDict_SetItemString(dict, "__doc__", docobj); - Py_DECREF(docobj); - if (result < 0) - goto failure; - } - - ret = PyErr_NewException(name, base, dict); - failure: - Py_XDECREF(mydict); - return ret; -} - - -PyDoc_STRVAR(UnraisableHookArgs__doc__, -"UnraisableHookArgs\n\ -\n\ -Type used to pass arguments to sys.unraisablehook."); - -static PyTypeObject UnraisableHookArgsType; - -static PyStructSequence_Field UnraisableHookArgs_fields[] = { - {"exc_type", "Exception type"}, - {"exc_value", "Exception value"}, - {"exc_traceback", "Exception traceback"}, - {"err_msg", "Error message"}, - {"object", "Object causing the exception"}, - {0} -}; - -static PyStructSequence_Desc UnraisableHookArgs_desc = { - .name = "UnraisableHookArgs", - .doc = UnraisableHookArgs__doc__, - .fields = UnraisableHookArgs_fields, - .n_in_sequence = 5 -}; - - -PyStatus -_PyErr_InitTypes(void) -{ - if (UnraisableHookArgsType.tp_name == NULL) { - if (PyStructSequence_InitType2(&UnraisableHookArgsType, - &UnraisableHookArgs_desc) < 0) { - return _PyStatus_ERR("failed to initialize UnraisableHookArgs type"); - } - } - return _PyStatus_OK(); -} - - -static PyObject * -make_unraisable_hook_args(PyThreadState *tstate, PyObject *exc_type, - PyObject *exc_value, PyObject *exc_tb, - PyObject *err_msg, PyObject *obj) -{ - PyObject *args = PyStructSequence_New(&UnraisableHookArgsType); - if (args == NULL) { - return NULL; - } - - Py_ssize_t pos = 0; -#define ADD_ITEM(exc_type) \ - do { \ - if (exc_type == NULL) { \ - exc_type = Py_None; \ - } \ - Py_INCREF(exc_type); \ - PyStructSequence_SET_ITEM(args, pos++, exc_type); \ - } while (0) - - - ADD_ITEM(exc_type); - ADD_ITEM(exc_value); - ADD_ITEM(exc_tb); - ADD_ITEM(err_msg); - ADD_ITEM(obj); -#undef ADD_ITEM - - if (_PyErr_Occurred(tstate)) { - Py_DECREF(args); - return NULL; - } - return args; -} - - - -/* Default implementation of sys.unraisablehook. - - It can be called to log the exception of a custom sys.unraisablehook. - - Do nothing if sys.stderr attribute doesn't exist or is set to None. */ -static int -write_unraisable_exc_file(PyThreadState *tstate, PyObject *exc_type, - PyObject *exc_value, PyObject *exc_tb, - PyObject *err_msg, PyObject *obj, PyObject *file) -{ - if (obj != NULL && obj != Py_None) { - if (err_msg != NULL && err_msg != Py_None) { - if (PyFile_WriteObject(err_msg, file, Py_PRINT_RAW) < 0) { - return -1; - } - if (PyFile_WriteString(": ", file) < 0) { - return -1; - } - } - else { - if (PyFile_WriteString("Exception ignored in: ", file) < 0) { - return -1; - } - } - - if (PyFile_WriteObject(obj, file, 0) < 0) { - _PyErr_Clear(tstate); - if (PyFile_WriteString("<object repr() failed>", file) < 0) { - return -1; - } - } - if (PyFile_WriteString("\n", file) < 0) { - return -1; - } - } - else if (err_msg != NULL && err_msg != Py_None) { - if (PyFile_WriteObject(err_msg, file, Py_PRINT_RAW) < 0) { - return -1; - } - if (PyFile_WriteString(":\n", file) < 0) { - return -1; - } - } - - if (exc_tb != NULL && exc_tb != Py_None) { - if (PyTraceBack_Print(exc_tb, file) < 0) { - /* continue even if writing the traceback failed */ - _PyErr_Clear(tstate); - } - } - - if (exc_type == NULL || exc_type == Py_None) { - return -1; - } - - assert(PyExceptionClass_Check(exc_type)); - - PyObject *modulename = _PyObject_GetAttrId(exc_type, &PyId___module__); - if (modulename == NULL || !PyUnicode_Check(modulename)) { - Py_XDECREF(modulename); - _PyErr_Clear(tstate); - if (PyFile_WriteString("<unknown>", file) < 0) { - return -1; - } - } - else { - if (!_PyUnicode_EqualToASCIIId(modulename, &PyId_builtins)) { - if (PyFile_WriteObject(modulename, file, Py_PRINT_RAW) < 0) { - Py_DECREF(modulename); - return -1; - } - Py_DECREF(modulename); - if (PyFile_WriteString(".", file) < 0) { - return -1; - } - } - else { - Py_DECREF(modulename); - } - } - - PyObject *qualname = _PyType_GetQualName((PyTypeObject *)exc_type); - if (qualname == NULL || !PyUnicode_Check(qualname)) { - Py_XDECREF(qualname); - _PyErr_Clear(tstate); - if (PyFile_WriteString("<unknown>", file) < 0) { - return -1; - } - } - else { - if (PyFile_WriteObject(qualname, file, Py_PRINT_RAW) < 0) { - Py_DECREF(qualname); - return -1; - } - Py_DECREF(qualname); - } - - if (exc_value && exc_value != Py_None) { - if (PyFile_WriteString(": ", file) < 0) { - return -1; - } - if (PyFile_WriteObject(exc_value, file, Py_PRINT_RAW) < 0) { - _PyErr_Clear(tstate); - if (PyFile_WriteString("<exception str() failed>", file) < 0) { - return -1; - } - } - } - - if (PyFile_WriteString("\n", file) < 0) { - return -1; - } - - /* Explicitly call file.flush() */ - PyObject *res = _PyObject_CallMethodIdNoArgs(file, &PyId_flush); - if (!res) { - return -1; - } - Py_DECREF(res); - - return 0; -} - - -static int -write_unraisable_exc(PyThreadState *tstate, PyObject *exc_type, - PyObject *exc_value, PyObject *exc_tb, PyObject *err_msg, - PyObject *obj) -{ - PyObject *file = _PySys_GetObjectId(&PyId_stderr); - if (file == NULL || file == Py_None) { - return 0; - } - - /* Hold a strong reference to ensure that sys.stderr doesn't go away - while we use it */ - Py_INCREF(file); - int res = write_unraisable_exc_file(tstate, exc_type, exc_value, exc_tb, - err_msg, obj, file); - Py_DECREF(file); - - return res; -} - - -PyObject* -_PyErr_WriteUnraisableDefaultHook(PyObject *args) -{ - PyThreadState *tstate = _PyThreadState_GET(); - - if (!Py_IS_TYPE(args, &UnraisableHookArgsType)) { - _PyErr_SetString(tstate, PyExc_TypeError, - "sys.unraisablehook argument type " - "must be UnraisableHookArgs"); - return NULL; - } - - /* Borrowed references */ - PyObject *exc_type = PyStructSequence_GET_ITEM(args, 0); - PyObject *exc_value = PyStructSequence_GET_ITEM(args, 1); - PyObject *exc_tb = PyStructSequence_GET_ITEM(args, 2); - PyObject *err_msg = PyStructSequence_GET_ITEM(args, 3); - PyObject *obj = PyStructSequence_GET_ITEM(args, 4); - - if (write_unraisable_exc(tstate, exc_type, exc_value, exc_tb, err_msg, obj) < 0) { - return NULL; - } - Py_RETURN_NONE; -} - - -/* Call sys.unraisablehook(). - - This function can be used when an exception has occurred but there is no way - for Python to handle it. For example, when a destructor raises an exception - or during garbage collection (gc.collect()). - - If err_msg_str is non-NULL, the error message is formatted as: - "Exception ignored %s" % err_msg_str. Otherwise, use "Exception ignored in" - error message. - - An exception must be set when calling this function. */ -void -_PyErr_WriteUnraisableMsg(const char *err_msg_str, PyObject *obj) -{ - PyThreadState *tstate = _PyThreadState_GET(); - _Py_EnsureTstateNotNULL(tstate); - - PyObject *err_msg = NULL; - PyObject *exc_type, *exc_value, *exc_tb; - _PyErr_Fetch(tstate, &exc_type, &exc_value, &exc_tb); - - assert(exc_type != NULL); - - if (exc_type == NULL) { - /* sys.unraisablehook requires that at least exc_type is set */ - goto default_hook; - } - - if (exc_tb == NULL) { - PyFrameObject *frame = tstate->frame; - if (frame != NULL) { - exc_tb = _PyTraceBack_FromFrame(NULL, frame); - if (exc_tb == NULL) { - _PyErr_Clear(tstate); - } - } - } - - _PyErr_NormalizeException(tstate, &exc_type, &exc_value, &exc_tb); - - if (exc_tb != NULL && exc_tb != Py_None && PyTraceBack_Check(exc_tb)) { - if (PyException_SetTraceback(exc_value, exc_tb) < 0) { - _PyErr_Clear(tstate); - } - } - - if (err_msg_str != NULL) { - err_msg = PyUnicode_FromFormat("Exception ignored %s", err_msg_str); - if (err_msg == NULL) { - PyErr_Clear(); - } - } - - PyObject *hook_args = make_unraisable_hook_args( - tstate, exc_type, exc_value, exc_tb, err_msg, obj); - if (hook_args == NULL) { - err_msg_str = ("Exception ignored on building " - "sys.unraisablehook arguments"); - goto error; - } - - _Py_IDENTIFIER(unraisablehook); - PyObject *hook = _PySys_GetObjectId(&PyId_unraisablehook); - if (hook == NULL) { - Py_DECREF(hook_args); - goto default_hook; - } - - if (_PySys_Audit(tstate, "sys.unraisablehook", "OO", hook, hook_args) < 0) { - Py_DECREF(hook_args); - err_msg_str = "Exception ignored in audit hook"; - obj = NULL; - goto error; - } - - if (hook == Py_None) { - Py_DECREF(hook_args); - goto default_hook; - } - - PyObject *res = PyObject_CallOneArg(hook, hook_args); - Py_DECREF(hook_args); - if (res != NULL) { - Py_DECREF(res); - goto done; - } - - /* sys.unraisablehook failed: log its error using default hook */ - obj = hook; - err_msg_str = NULL; - -error: - /* err_msg_str and obj have been updated and we have a new exception */ - Py_XSETREF(err_msg, PyUnicode_FromString(err_msg_str ? - err_msg_str : "Exception ignored in sys.unraisablehook")); - Py_XDECREF(exc_type); - Py_XDECREF(exc_value); - Py_XDECREF(exc_tb); - _PyErr_Fetch(tstate, &exc_type, &exc_value, &exc_tb); - -default_hook: - /* Call the default unraisable hook (ignore failure) */ - (void)write_unraisable_exc(tstate, exc_type, exc_value, exc_tb, - err_msg, obj); - -done: - Py_XDECREF(exc_type); - Py_XDECREF(exc_value); - Py_XDECREF(exc_tb); - Py_XDECREF(err_msg); - _PyErr_Clear(tstate); /* Just in case */ -} - - -void -PyErr_WriteUnraisable(PyObject *obj) -{ - _PyErr_WriteUnraisableMsg(NULL, obj); -} - - -void -PyErr_SyntaxLocation(const char *filename, int lineno) -{ - PyErr_SyntaxLocationEx(filename, lineno, -1); -} - - -/* Set file and line information for the current exception. - If the exception is not a SyntaxError, also sets additional attributes - to make printing of exceptions believe it is a syntax error. */ - -static void -PyErr_SyntaxLocationObjectEx(PyObject *filename, int lineno, int col_offset, - int end_lineno, int end_col_offset) -{ - PyObject *exc, *v, *tb, *tmp; - _Py_IDENTIFIER(filename); - _Py_IDENTIFIER(lineno); - _Py_IDENTIFIER(end_lineno); - _Py_IDENTIFIER(msg); - _Py_IDENTIFIER(offset); - _Py_IDENTIFIER(end_offset); - _Py_IDENTIFIER(print_file_and_line); - _Py_IDENTIFIER(text); - PyThreadState *tstate = _PyThreadState_GET(); - - /* add attributes for the line number and filename for the error */ - _PyErr_Fetch(tstate, &exc, &v, &tb); - _PyErr_NormalizeException(tstate, &exc, &v, &tb); - /* XXX check that it is, indeed, a syntax error. It might not - * be, though. */ - tmp = PyLong_FromLong(lineno); - if (tmp == NULL) - _PyErr_Clear(tstate); - else { - if (_PyObject_SetAttrId(v, &PyId_lineno, tmp)) { - _PyErr_Clear(tstate); - } - Py_DECREF(tmp); - } - tmp = NULL; - if (col_offset >= 0) { - tmp = PyLong_FromLong(col_offset); - if (tmp == NULL) { - _PyErr_Clear(tstate); - } - } - if (_PyObject_SetAttrId(v, &PyId_offset, tmp ? tmp : Py_None)) { - _PyErr_Clear(tstate); - } - Py_XDECREF(tmp); - - tmp = NULL; - if (end_lineno >= 0) { - tmp = PyLong_FromLong(end_lineno); - if (tmp == NULL) { - _PyErr_Clear(tstate); - } - } - if (_PyObject_SetAttrId(v, &PyId_end_lineno, tmp ? tmp : Py_None)) { - _PyErr_Clear(tstate); - } - Py_XDECREF(tmp); - - tmp = NULL; - if (end_col_offset >= 0) { - tmp = PyLong_FromLong(end_col_offset); - if (tmp == NULL) { - _PyErr_Clear(tstate); - } - } - if (_PyObject_SetAttrId(v, &PyId_end_offset, tmp ? tmp : Py_None)) { - _PyErr_Clear(tstate); - } - Py_XDECREF(tmp); - - tmp = NULL; - if (filename != NULL) { - if (_PyObject_SetAttrId(v, &PyId_filename, filename)) { - _PyErr_Clear(tstate); - } - - tmp = PyErr_ProgramTextObject(filename, lineno); - if (tmp) { - if (_PyObject_SetAttrId(v, &PyId_text, tmp)) { - _PyErr_Clear(tstate); - } - Py_DECREF(tmp); - } - else { - _PyErr_Clear(tstate); - } - } - if (exc != PyExc_SyntaxError) { - if (_PyObject_LookupAttrId(v, &PyId_msg, &tmp) < 0) { - _PyErr_Clear(tstate); - } - else if (tmp) { - Py_DECREF(tmp); - } - else { - tmp = PyObject_Str(v); - if (tmp) { - if (_PyObject_SetAttrId(v, &PyId_msg, tmp)) { - _PyErr_Clear(tstate); - } - Py_DECREF(tmp); - } - else { - _PyErr_Clear(tstate); - } - } - if (_PyObject_LookupAttrId(v, &PyId_print_file_and_line, &tmp) < 0) { - _PyErr_Clear(tstate); - } - else if (tmp) { - Py_DECREF(tmp); - } - else { - if (_PyObject_SetAttrId(v, &PyId_print_file_and_line, - Py_None)) { - _PyErr_Clear(tstate); - } - } - } - _PyErr_Restore(tstate, exc, v, tb); -} - -void -PyErr_SyntaxLocationObject(PyObject *filename, int lineno, int col_offset) { - PyErr_SyntaxLocationObjectEx(filename, lineno, col_offset, lineno, -1); -} - -void -PyErr_RangedSyntaxLocationObject(PyObject *filename, int lineno, int col_offset, - int end_lineno, int end_col_offset) { - PyErr_SyntaxLocationObjectEx(filename, lineno, col_offset, end_lineno, end_col_offset); -} - -void -PyErr_SyntaxLocationEx(const char *filename, int lineno, int col_offset) -{ - PyThreadState *tstate = _PyThreadState_GET(); - PyObject *fileobj; - if (filename != NULL) { - fileobj = PyUnicode_DecodeFSDefault(filename); - if (fileobj == NULL) { - _PyErr_Clear(tstate); - } - } - else { - fileobj = NULL; - } - PyErr_SyntaxLocationObject(fileobj, lineno, col_offset); - Py_XDECREF(fileobj); -} - -/* Attempt to load the line of text that the exception refers to. If it - fails, it will return NULL but will not set an exception. - - XXX The functionality of this function is quite similar to the - functionality in tb_displayline() in traceback.c. */ - -static PyObject * -err_programtext(PyThreadState *tstate, FILE *fp, int lineno, const char* encoding) -{ - int i; - char linebuf[1000]; - if (fp == NULL) { - return NULL; - } - - for (i = 0; i < lineno; i++) { - char *pLastChar = &linebuf[sizeof(linebuf) - 2]; - do { - *pLastChar = '\0'; - if (Py_UniversalNewlineFgets(linebuf, sizeof linebuf, - fp, NULL) == NULL) { - goto after_loop; - } - /* fgets read *something*; if it didn't get as - far as pLastChar, it must have found a newline - or hit the end of the file; if pLastChar is \n, - it obviously found a newline; else we haven't - yet seen a newline, so must continue */ - } while (*pLastChar != '\0' && *pLastChar != '\n'); - } - -after_loop: - fclose(fp); - if (i == lineno) { - PyObject *res; - if (encoding != NULL) { - res = PyUnicode_Decode(linebuf, strlen(linebuf), encoding, "replace"); - } else { - res = PyUnicode_FromString(linebuf); - } - if (res == NULL) - _PyErr_Clear(tstate); - return res; - } - return NULL; -} - -PyObject * -PyErr_ProgramText(const char *filename, int lineno) -{ - if (filename == NULL) { - return NULL; - } - - PyObject *filename_obj = PyUnicode_DecodeFSDefault(filename); - if (filename_obj == NULL) { - PyErr_Clear(); - return NULL; - } - PyObject *res = PyErr_ProgramTextObject(filename_obj, lineno); - Py_DECREF(filename_obj); - return res; -} - -PyObject * -_PyErr_ProgramDecodedTextObject(PyObject *filename, int lineno, const char* encoding) -{ - if (filename == NULL || lineno <= 0) { - return NULL; - } - - PyThreadState *tstate = _PyThreadState_GET(); - FILE *fp = _Py_fopen_obj(filename, "r" PY_STDIOTEXTMODE); - if (fp == NULL) { - _PyErr_Clear(tstate); - return NULL; - } - return err_programtext(tstate, fp, lineno, encoding); -} - -PyObject * -PyErr_ProgramTextObject(PyObject *filename, int lineno) -{ - return _PyErr_ProgramDecodedTextObject(filename, lineno, NULL); -} - -#ifdef __cplusplus -} -#endif |