| /* |
| * New exceptions.c written in Iceland by Richard Jones and Georg Brandl. |
| * |
| * Thanks go to Tim Peters and Michael Hudson for debugging. |
| */ |
| |
| #define PY_SSIZE_T_CLEAN |
| #include <Python.h> |
| #include "structmember.h" |
| #include "osdefs.h" |
| |
| |
| /* Compatibility aliases */ |
| PyObject *PyExc_EnvironmentError = NULL; |
| PyObject *PyExc_IOError = NULL; |
| #ifdef MS_WINDOWS |
| PyObject *PyExc_WindowsError = NULL; |
| #endif |
| #ifdef __VMS |
| PyObject *PyExc_VMSError = NULL; |
| #endif |
| |
| /* The dict map from errno codes to OSError subclasses */ |
| static PyObject *errnomap = NULL; |
| |
| |
| /* NOTE: If the exception class hierarchy changes, don't forget to update |
| * Lib/test/exception_hierarchy.txt |
| */ |
| |
| /* |
| * BaseException |
| */ |
| static PyObject * |
| BaseException_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| { |
| PyBaseExceptionObject *self; |
| |
| self = (PyBaseExceptionObject *)type->tp_alloc(type, 0); |
| if (!self) |
| return NULL; |
| /* the dict is created on the fly in PyObject_GenericSetAttr */ |
| self->dict = NULL; |
| self->traceback = self->cause = self->context = NULL; |
| self->suppress_context = 0; |
| |
| self->args = PyTuple_New(0); |
| if (!self->args) { |
| Py_DECREF(self); |
| return NULL; |
| } |
| |
| return (PyObject *)self; |
| } |
| |
| static int |
| BaseException_init(PyBaseExceptionObject *self, PyObject *args, PyObject *kwds) |
| { |
| if (!_PyArg_NoKeywords(Py_TYPE(self)->tp_name, kwds)) |
| return -1; |
| |
| Py_XDECREF(self->args); |
| self->args = args; |
| Py_INCREF(self->args); |
| |
| return 0; |
| } |
| |
| static int |
| BaseException_clear(PyBaseExceptionObject *self) |
| { |
| Py_CLEAR(self->dict); |
| Py_CLEAR(self->args); |
| Py_CLEAR(self->traceback); |
| Py_CLEAR(self->cause); |
| Py_CLEAR(self->context); |
| return 0; |
| } |
| |
| static void |
| BaseException_dealloc(PyBaseExceptionObject *self) |
| { |
| _PyObject_GC_UNTRACK(self); |
| BaseException_clear(self); |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| } |
| |
| static int |
| BaseException_traverse(PyBaseExceptionObject *self, visitproc visit, void *arg) |
| { |
| Py_VISIT(self->dict); |
| Py_VISIT(self->args); |
| Py_VISIT(self->traceback); |
| Py_VISIT(self->cause); |
| Py_VISIT(self->context); |
| return 0; |
| } |
| |
| static PyObject * |
| BaseException_str(PyBaseExceptionObject *self) |
| { |
| switch (PyTuple_GET_SIZE(self->args)) { |
| case 0: |
| return PyUnicode_FromString(""); |
| case 1: |
| return PyObject_Str(PyTuple_GET_ITEM(self->args, 0)); |
| default: |
| return PyObject_Str(self->args); |
| } |
| } |
| |
| static PyObject * |
| BaseException_repr(PyBaseExceptionObject *self) |
| { |
| char *name; |
| char *dot; |
| |
| name = (char *)Py_TYPE(self)->tp_name; |
| dot = strrchr(name, '.'); |
| if (dot != NULL) name = dot+1; |
| |
| return PyUnicode_FromFormat("%s%R", name, self->args); |
| } |
| |
| /* Pickling support */ |
| static PyObject * |
| BaseException_reduce(PyBaseExceptionObject *self) |
| { |
| if (self->args && self->dict) |
| return PyTuple_Pack(3, Py_TYPE(self), self->args, self->dict); |
| else |
| return PyTuple_Pack(2, Py_TYPE(self), self->args); |
| } |
| |
| /* |
| * Needed for backward compatibility, since exceptions used to store |
| * all their attributes in the __dict__. Code is taken from cPickle's |
| * load_build function. |
| */ |
| static PyObject * |
| BaseException_setstate(PyObject *self, PyObject *state) |
| { |
| PyObject *d_key, *d_value; |
| Py_ssize_t i = 0; |
| |
| if (state != Py_None) { |
| if (!PyDict_Check(state)) { |
| PyErr_SetString(PyExc_TypeError, "state is not a dictionary"); |
| return NULL; |
| } |
| while (PyDict_Next(state, &i, &d_key, &d_value)) { |
| if (PyObject_SetAttr(self, d_key, d_value) < 0) |
| return NULL; |
| } |
| } |
| Py_RETURN_NONE; |
| } |
| |
| static PyObject * |
| BaseException_with_traceback(PyObject *self, PyObject *tb) { |
| if (PyException_SetTraceback(self, tb)) |
| return NULL; |
| |
| Py_INCREF(self); |
| return self; |
| } |
| |
| PyDoc_STRVAR(with_traceback_doc, |
| "Exception.with_traceback(tb) --\n\ |
| set self.__traceback__ to tb and return self."); |
| |
| |
| static PyMethodDef BaseException_methods[] = { |
| {"__reduce__", (PyCFunction)BaseException_reduce, METH_NOARGS }, |
| {"__setstate__", (PyCFunction)BaseException_setstate, METH_O }, |
| {"with_traceback", (PyCFunction)BaseException_with_traceback, METH_O, |
| with_traceback_doc}, |
| {NULL, NULL, 0, NULL}, |
| }; |
| |
| static PyObject * |
| BaseException_get_args(PyBaseExceptionObject *self) |
| { |
| if (self->args == NULL) { |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| Py_INCREF(self->args); |
| return self->args; |
| } |
| |
| static int |
| BaseException_set_args(PyBaseExceptionObject *self, PyObject *val) |
| { |
| PyObject *seq; |
| if (val == NULL) { |
| PyErr_SetString(PyExc_TypeError, "args may not be deleted"); |
| return -1; |
| } |
| seq = PySequence_Tuple(val); |
| if (!seq) |
| return -1; |
| Py_CLEAR(self->args); |
| self->args = seq; |
| return 0; |
| } |
| |
| static PyObject * |
| BaseException_get_tb(PyBaseExceptionObject *self) |
| { |
| if (self->traceback == NULL) { |
| Py_INCREF(Py_None); |
| return Py_None; |
| } |
| Py_INCREF(self->traceback); |
| return self->traceback; |
| } |
| |
| static int |
| BaseException_set_tb(PyBaseExceptionObject *self, PyObject *tb) |
| { |
| if (tb == NULL) { |
| PyErr_SetString(PyExc_TypeError, "__traceback__ may not be deleted"); |
| return -1; |
| } |
| else if (!(tb == Py_None || PyTraceBack_Check(tb))) { |
| PyErr_SetString(PyExc_TypeError, |
| "__traceback__ must be a traceback or None"); |
| return -1; |
| } |
| |
| Py_XINCREF(tb); |
| Py_XDECREF(self->traceback); |
| self->traceback = tb; |
| return 0; |
| } |
| |
| static PyObject * |
| BaseException_get_context(PyObject *self) { |
| PyObject *res = PyException_GetContext(self); |
| if (res) |
| return res; /* new reference already returned above */ |
| Py_RETURN_NONE; |
| } |
| |
| static int |
| BaseException_set_context(PyObject *self, PyObject *arg) { |
| if (arg == NULL) { |
| PyErr_SetString(PyExc_TypeError, "__context__ may not be deleted"); |
| return -1; |
| } else if (arg == Py_None) { |
| arg = NULL; |
| } else if (!PyExceptionInstance_Check(arg)) { |
| PyErr_SetString(PyExc_TypeError, "exception context must be None " |
| "or derive from BaseException"); |
| return -1; |
| } else { |
| /* PyException_SetContext steals this reference */ |
| Py_INCREF(arg); |
| } |
| PyException_SetContext(self, arg); |
| return 0; |
| } |
| |
| static PyObject * |
| BaseException_get_cause(PyObject *self) { |
| PyObject *res = PyException_GetCause(self); |
| if (res) |
| return res; /* new reference already returned above */ |
| Py_RETURN_NONE; |
| } |
| |
| static int |
| BaseException_set_cause(PyObject *self, PyObject *arg) { |
| if (arg == NULL) { |
| PyErr_SetString(PyExc_TypeError, "__cause__ may not be deleted"); |
| return -1; |
| } else if (arg == Py_None) { |
| arg = NULL; |
| } else if (!PyExceptionInstance_Check(arg)) { |
| PyErr_SetString(PyExc_TypeError, "exception cause must be None " |
| "or derive from BaseException"); |
| return -1; |
| } else { |
| /* PyException_SetCause steals this reference */ |
| Py_INCREF(arg); |
| } |
| PyException_SetCause(self, arg); |
| return 0; |
| } |
| |
| |
| static PyGetSetDef BaseException_getset[] = { |
| {"__dict__", PyObject_GenericGetDict, PyObject_GenericSetDict}, |
| {"args", (getter)BaseException_get_args, (setter)BaseException_set_args}, |
| {"__traceback__", (getter)BaseException_get_tb, (setter)BaseException_set_tb}, |
| {"__context__", (getter)BaseException_get_context, |
| (setter)BaseException_set_context, PyDoc_STR("exception context")}, |
| {"__cause__", (getter)BaseException_get_cause, |
| (setter)BaseException_set_cause, PyDoc_STR("exception cause")}, |
| {NULL}, |
| }; |
| |
| |
| PyObject * |
| PyException_GetTraceback(PyObject *self) { |
| PyBaseExceptionObject *base_self = (PyBaseExceptionObject *)self; |
| Py_XINCREF(base_self->traceback); |
| return base_self->traceback; |
| } |
| |
| |
| int |
| PyException_SetTraceback(PyObject *self, PyObject *tb) { |
| return BaseException_set_tb((PyBaseExceptionObject *)self, tb); |
| } |
| |
| PyObject * |
| PyException_GetCause(PyObject *self) { |
| PyObject *cause = ((PyBaseExceptionObject *)self)->cause; |
| Py_XINCREF(cause); |
| return cause; |
| } |
| |
| /* Steals a reference to cause */ |
| void |
| PyException_SetCause(PyObject *self, PyObject *cause) { |
| PyObject *old_cause = ((PyBaseExceptionObject *)self)->cause; |
| ((PyBaseExceptionObject *)self)->cause = cause; |
| ((PyBaseExceptionObject *)self)->suppress_context = 1; |
| Py_XDECREF(old_cause); |
| } |
| |
| PyObject * |
| PyException_GetContext(PyObject *self) { |
| PyObject *context = ((PyBaseExceptionObject *)self)->context; |
| Py_XINCREF(context); |
| return context; |
| } |
| |
| /* Steals a reference to context */ |
| void |
| PyException_SetContext(PyObject *self, PyObject *context) { |
| PyObject *old_context = ((PyBaseExceptionObject *)self)->context; |
| ((PyBaseExceptionObject *)self)->context = context; |
| Py_XDECREF(old_context); |
| } |
| |
| |
| static struct PyMemberDef BaseException_members[] = { |
| {"__suppress_context__", T_BOOL, |
| offsetof(PyBaseExceptionObject, suppress_context)}, |
| {NULL} |
| }; |
| |
| |
| static PyTypeObject _PyExc_BaseException = { |
| PyVarObject_HEAD_INIT(NULL, 0) |
| "BaseException", /*tp_name*/ |
| sizeof(PyBaseExceptionObject), /*tp_basicsize*/ |
| 0, /*tp_itemsize*/ |
| (destructor)BaseException_dealloc, /*tp_dealloc*/ |
| 0, /*tp_print*/ |
| 0, /*tp_getattr*/ |
| 0, /*tp_setattr*/ |
| 0, /* tp_reserved; */ |
| (reprfunc)BaseException_repr, /*tp_repr*/ |
| 0, /*tp_as_number*/ |
| 0, /*tp_as_sequence*/ |
| 0, /*tp_as_mapping*/ |
| 0, /*tp_hash */ |
| 0, /*tp_call*/ |
| (reprfunc)BaseException_str, /*tp_str*/ |
| PyObject_GenericGetAttr, /*tp_getattro*/ |
| PyObject_GenericSetAttr, /*tp_setattro*/ |
| 0, /*tp_as_buffer*/ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC | |
| Py_TPFLAGS_BASE_EXC_SUBCLASS, /*tp_flags*/ |
| PyDoc_STR("Common base class for all exceptions"), /* tp_doc */ |
| (traverseproc)BaseException_traverse, /* tp_traverse */ |
| (inquiry)BaseException_clear, /* tp_clear */ |
| 0, /* tp_richcompare */ |
| 0, /* tp_weaklistoffset */ |
| 0, /* tp_iter */ |
| 0, /* tp_iternext */ |
| BaseException_methods, /* tp_methods */ |
| BaseException_members, /* tp_members */ |
| BaseException_getset, /* tp_getset */ |
| 0, /* tp_base */ |
| 0, /* tp_dict */ |
| 0, /* tp_descr_get */ |
| 0, /* tp_descr_set */ |
| offsetof(PyBaseExceptionObject, dict), /* tp_dictoffset */ |
| (initproc)BaseException_init, /* tp_init */ |
| 0, /* tp_alloc */ |
| BaseException_new, /* tp_new */ |
| }; |
| /* the CPython API expects exceptions to be (PyObject *) - both a hold-over |
| from the previous implmentation and also allowing Python objects to be used |
| in the API */ |
| PyObject *PyExc_BaseException = (PyObject *)&_PyExc_BaseException; |
| |
| /* note these macros omit the last semicolon so the macro invocation may |
| * include it and not look strange. |
| */ |
| #define SimpleExtendsException(EXCBASE, EXCNAME, EXCDOC) \ |
| static PyTypeObject _PyExc_ ## EXCNAME = { \ |
| PyVarObject_HEAD_INIT(NULL, 0) \ |
| # EXCNAME, \ |
| sizeof(PyBaseExceptionObject), \ |
| 0, (destructor)BaseException_dealloc, 0, 0, 0, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 0, 0, \ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, \ |
| PyDoc_STR(EXCDOC), (traverseproc)BaseException_traverse, \ |
| (inquiry)BaseException_clear, 0, 0, 0, 0, 0, 0, 0, &_ ## EXCBASE, \ |
| 0, 0, 0, offsetof(PyBaseExceptionObject, dict), \ |
| (initproc)BaseException_init, 0, BaseException_new,\ |
| }; \ |
| PyObject *PyExc_ ## EXCNAME = (PyObject *)&_PyExc_ ## EXCNAME |
| |
| #define MiddlingExtendsException(EXCBASE, EXCNAME, EXCSTORE, EXCDOC) \ |
| static PyTypeObject _PyExc_ ## EXCNAME = { \ |
| PyVarObject_HEAD_INIT(NULL, 0) \ |
| # EXCNAME, \ |
| sizeof(Py ## EXCSTORE ## Object), \ |
| 0, (destructor)EXCSTORE ## _dealloc, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, \ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, \ |
| PyDoc_STR(EXCDOC), (traverseproc)EXCSTORE ## _traverse, \ |
| (inquiry)EXCSTORE ## _clear, 0, 0, 0, 0, 0, 0, 0, &_ ## EXCBASE, \ |
| 0, 0, 0, offsetof(Py ## EXCSTORE ## Object, dict), \ |
| (initproc)EXCSTORE ## _init, 0, 0, \ |
| }; \ |
| PyObject *PyExc_ ## EXCNAME = (PyObject *)&_PyExc_ ## EXCNAME |
| |
| #define ComplexExtendsException(EXCBASE, EXCNAME, EXCSTORE, EXCNEW, \ |
| EXCMETHODS, EXCMEMBERS, EXCGETSET, \ |
| EXCSTR, EXCDOC) \ |
| static PyTypeObject _PyExc_ ## EXCNAME = { \ |
| PyVarObject_HEAD_INIT(NULL, 0) \ |
| # EXCNAME, \ |
| sizeof(Py ## EXCSTORE ## Object), 0, \ |
| (destructor)EXCSTORE ## _dealloc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ |
| (reprfunc)EXCSTR, 0, 0, 0, \ |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, \ |
| PyDoc_STR(EXCDOC), (traverseproc)EXCSTORE ## _traverse, \ |
| (inquiry)EXCSTORE ## _clear, 0, 0, 0, 0, EXCMETHODS, \ |
| EXCMEMBERS, EXCGETSET, &_ ## EXCBASE, \ |
| 0, 0, 0, offsetof(Py ## EXCSTORE ## Object, dict), \ |
| (initproc)EXCSTORE ## _init, 0, EXCNEW,\ |
| }; \ |
| PyObject *PyExc_ ## EXCNAME = (PyObject *)&_PyExc_ ## EXCNAME |
| |
| |
| /* |
| * Exception extends BaseException |
| */ |
| SimpleExtendsException(PyExc_BaseException, Exception, |
| "Common base class for all non-exit exceptions."); |
| |
| |
| /* |
| * TypeError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, TypeError, |
| "Inappropriate argument type."); |
| |
| |
| /* |
| * StopIteration extends Exception |
| */ |
| |
| static PyMemberDef StopIteration_members[] = { |
| {"value", T_OBJECT, offsetof(PyStopIterationObject, value), 0, |
| PyDoc_STR("generator return value")}, |
| {NULL} /* Sentinel */ |
| }; |
| |
| static int |
| StopIteration_init(PyStopIterationObject *self, PyObject *args, PyObject *kwds) |
| { |
| Py_ssize_t size = PyTuple_GET_SIZE(args); |
| PyObject *value; |
| |
| if (BaseException_init((PyBaseExceptionObject *)self, args, kwds) == -1) |
| return -1; |
| Py_CLEAR(self->value); |
| if (size > 0) |
| value = PyTuple_GET_ITEM(args, 0); |
| else |
| value = Py_None; |
| Py_INCREF(value); |
| self->value = value; |
| return 0; |
| } |
| |
| static int |
| StopIteration_clear(PyStopIterationObject *self) |
| { |
| Py_CLEAR(self->value); |
| return BaseException_clear((PyBaseExceptionObject *)self); |
| } |
| |
| static void |
| StopIteration_dealloc(PyStopIterationObject *self) |
| { |
| _PyObject_GC_UNTRACK(self); |
| StopIteration_clear(self); |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| } |
| |
| static int |
| StopIteration_traverse(PyStopIterationObject *self, visitproc visit, void *arg) |
| { |
| Py_VISIT(self->value); |
| return BaseException_traverse((PyBaseExceptionObject *)self, visit, arg); |
| } |
| |
| ComplexExtendsException( |
| PyExc_Exception, /* base */ |
| StopIteration, /* name */ |
| StopIteration, /* prefix for *_init, etc */ |
| 0, /* new */ |
| 0, /* methods */ |
| StopIteration_members, /* members */ |
| 0, /* getset */ |
| 0, /* str */ |
| "Signal the end from iterator.__next__()." |
| ); |
| |
| |
| /* |
| * GeneratorExit extends BaseException |
| */ |
| SimpleExtendsException(PyExc_BaseException, GeneratorExit, |
| "Request that a generator exit."); |
| |
| |
| /* |
| * SystemExit extends BaseException |
| */ |
| |
| static int |
| SystemExit_init(PySystemExitObject *self, PyObject *args, PyObject *kwds) |
| { |
| Py_ssize_t size = PyTuple_GET_SIZE(args); |
| |
| if (BaseException_init((PyBaseExceptionObject *)self, args, kwds) == -1) |
| return -1; |
| |
| if (size == 0) |
| return 0; |
| Py_CLEAR(self->code); |
| if (size == 1) |
| self->code = PyTuple_GET_ITEM(args, 0); |
| else /* size > 1 */ |
| self->code = args; |
| Py_INCREF(self->code); |
| return 0; |
| } |
| |
| static int |
| SystemExit_clear(PySystemExitObject *self) |
| { |
| Py_CLEAR(self->code); |
| return BaseException_clear((PyBaseExceptionObject *)self); |
| } |
| |
| static void |
| SystemExit_dealloc(PySystemExitObject *self) |
| { |
| _PyObject_GC_UNTRACK(self); |
| SystemExit_clear(self); |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| } |
| |
| static int |
| SystemExit_traverse(PySystemExitObject *self, visitproc visit, void *arg) |
| { |
| Py_VISIT(self->code); |
| return BaseException_traverse((PyBaseExceptionObject *)self, visit, arg); |
| } |
| |
| static PyMemberDef SystemExit_members[] = { |
| {"code", T_OBJECT, offsetof(PySystemExitObject, code), 0, |
| PyDoc_STR("exception code")}, |
| {NULL} /* Sentinel */ |
| }; |
| |
| ComplexExtendsException(PyExc_BaseException, SystemExit, SystemExit, |
| 0, 0, SystemExit_members, 0, 0, |
| "Request to exit from the interpreter."); |
| |
| /* |
| * KeyboardInterrupt extends BaseException |
| */ |
| SimpleExtendsException(PyExc_BaseException, KeyboardInterrupt, |
| "Program interrupted by user."); |
| |
| |
| /* |
| * ImportError extends Exception |
| */ |
| |
| static int |
| ImportError_init(PyImportErrorObject *self, PyObject *args, PyObject *kwds) |
| { |
| PyObject *msg = NULL; |
| PyObject *name = NULL; |
| PyObject *path = NULL; |
| |
| /* Macro replacement doesn't allow ## to start the first line of a macro, |
| so we move the assignment and NULL check into the if-statement. */ |
| #define GET_KWD(kwd) { \ |
| kwd = PyDict_GetItemString(kwds, #kwd); \ |
| if (kwd) { \ |
| Py_CLEAR(self->kwd); \ |
| self->kwd = kwd; \ |
| Py_INCREF(self->kwd);\ |
| if (PyDict_DelItemString(kwds, #kwd)) \ |
| return -1; \ |
| } \ |
| } |
| |
| if (kwds) { |
| GET_KWD(name); |
| GET_KWD(path); |
| } |
| |
| if (BaseException_init((PyBaseExceptionObject *)self, args, kwds) == -1) |
| return -1; |
| if (PyTuple_GET_SIZE(args) != 1) |
| return 0; |
| if (!PyArg_UnpackTuple(args, "ImportError", 1, 1, &msg)) |
| return -1; |
| |
| Py_CLEAR(self->msg); /* replacing */ |
| self->msg = msg; |
| Py_INCREF(self->msg); |
| |
| return 0; |
| } |
| |
| static int |
| ImportError_clear(PyImportErrorObject *self) |
| { |
| Py_CLEAR(self->msg); |
| Py_CLEAR(self->name); |
| Py_CLEAR(self->path); |
| return BaseException_clear((PyBaseExceptionObject *)self); |
| } |
| |
| static void |
| ImportError_dealloc(PyImportErrorObject *self) |
| { |
| _PyObject_GC_UNTRACK(self); |
| ImportError_clear(self); |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| } |
| |
| static int |
| ImportError_traverse(PyImportErrorObject *self, visitproc visit, void *arg) |
| { |
| Py_VISIT(self->msg); |
| Py_VISIT(self->name); |
| Py_VISIT(self->path); |
| return BaseException_traverse((PyBaseExceptionObject *)self, visit, arg); |
| } |
| |
| static PyObject * |
| ImportError_str(PyImportErrorObject *self) |
| { |
| if (self->msg) { |
| Py_INCREF(self->msg); |
| return self->msg; |
| } |
| else { |
| return BaseException_str((PyBaseExceptionObject *)self); |
| } |
| } |
| |
| static PyMemberDef ImportError_members[] = { |
| {"msg", T_OBJECT, offsetof(PyImportErrorObject, msg), 0, |
| PyDoc_STR("exception message")}, |
| {"name", T_OBJECT, offsetof(PyImportErrorObject, name), 0, |
| PyDoc_STR("module name")}, |
| {"path", T_OBJECT, offsetof(PyImportErrorObject, path), 0, |
| PyDoc_STR("module path")}, |
| {NULL} /* Sentinel */ |
| }; |
| |
| static PyMethodDef ImportError_methods[] = { |
| {NULL} |
| }; |
| |
| ComplexExtendsException(PyExc_Exception, ImportError, |
| ImportError, 0 /* new */, |
| ImportError_methods, ImportError_members, |
| 0 /* getset */, ImportError_str, |
| "Import can't find module, or can't find name in " |
| "module."); |
| |
| /* |
| * OSError extends Exception |
| */ |
| |
| #ifdef MS_WINDOWS |
| #include "errmap.h" |
| #endif |
| |
| /* Where a function has a single filename, such as open() or some |
| * of the os module functions, PyErr_SetFromErrnoWithFilename() is |
| * called, giving a third argument which is the filename. But, so |
| * that old code using in-place unpacking doesn't break, e.g.: |
| * |
| * except OSError, (errno, strerror): |
| * |
| * we hack args so that it only contains two items. This also |
| * means we need our own __str__() which prints out the filename |
| * when it was supplied. |
| */ |
| |
| /* This function doesn't cleanup on error, the caller should */ |
| static int |
| oserror_parse_args(PyObject **p_args, |
| PyObject **myerrno, PyObject **strerror, |
| PyObject **filename |
| #ifdef MS_WINDOWS |
| , PyObject **winerror |
| #endif |
| ) |
| { |
| Py_ssize_t nargs; |
| PyObject *args = *p_args; |
| |
| nargs = PyTuple_GET_SIZE(args); |
| |
| #ifdef MS_WINDOWS |
| if (nargs >= 2 && nargs <= 4) { |
| if (!PyArg_UnpackTuple(args, "OSError", 2, 4, |
| myerrno, strerror, filename, winerror)) |
| return -1; |
| if (*winerror && PyLong_Check(*winerror)) { |
| long errcode, winerrcode; |
| PyObject *newargs; |
| Py_ssize_t i; |
| |
| winerrcode = PyLong_AsLong(*winerror); |
| if (winerrcode == -1 && PyErr_Occurred()) |
| return -1; |
| /* Set errno to the corresponding POSIX errno (overriding |
| first argument). Windows Socket error codes (>= 10000) |
| have the same value as their POSIX counterparts. |
| */ |
| if (winerrcode < 10000) |
| errcode = winerror_to_errno(winerrcode); |
| else |
| errcode = winerrcode; |
| *myerrno = PyLong_FromLong(errcode); |
| if (!*myerrno) |
| return -1; |
| newargs = PyTuple_New(nargs); |
| if (!newargs) |
| return -1; |
| PyTuple_SET_ITEM(newargs, 0, *myerrno); |
| for (i = 1; i < nargs; i++) { |
| PyObject *val = PyTuple_GET_ITEM(args, i); |
| Py_INCREF(val); |
| PyTuple_SET_ITEM(newargs, i, val); |
| } |
| Py_DECREF(args); |
| args = *p_args = newargs; |
| } |
| } |
| #else |
| if (nargs >= 2 && nargs <= 3) { |
| if (!PyArg_UnpackTuple(args, "OSError", 2, 3, |
| myerrno, strerror, filename)) |
| return -1; |
| } |
| #endif |
| |
| return 0; |
| } |
| |
| static int |
| oserror_init(PyOSErrorObject *self, PyObject **p_args, |
| PyObject *myerrno, PyObject *strerror, |
| PyObject *filename |
| #ifdef MS_WINDOWS |
| , PyObject *winerror |
| #endif |
| ) |
| { |
| PyObject *args = *p_args; |
| Py_ssize_t nargs = PyTuple_GET_SIZE(args); |
| |
| /* self->filename will remain Py_None otherwise */ |
| if (filename && filename != Py_None) { |
| if (Py_TYPE(self) == (PyTypeObject *) PyExc_BlockingIOError && |
| PyNumber_Check(filename)) { |
| /* BlockingIOError's 3rd argument can be the number of |
| * characters written. |
| */ |
| self->written = PyNumber_AsSsize_t(filename, PyExc_ValueError); |
| if (self->written == -1 && PyErr_Occurred()) |
| return -1; |
| } |
| else { |
| Py_INCREF(filename); |
| self->filename = filename; |
| |
| if (nargs >= 2 && nargs <= 3) { |
| /* filename is removed from the args tuple (for compatibility |
| purposes, see test_exceptions.py) */ |
| PyObject *subslice = PyTuple_GetSlice(args, 0, 2); |
| if (!subslice) |
| return -1; |
| |
| Py_DECREF(args); /* replacing args */ |
| *p_args = args = subslice; |
| } |
| } |
| } |
| Py_XINCREF(myerrno); |
| self->myerrno = myerrno; |
| |
| Py_XINCREF(strerror); |
| self->strerror = strerror; |
| |
| #ifdef MS_WINDOWS |
| Py_XINCREF(winerror); |
| self->winerror = winerror; |
| #endif |
| |
| /* Steals the reference to args */ |
| Py_CLEAR(self->args); |
| self->args = args; |
| args = NULL; |
| |
| return 0; |
| } |
| |
| static PyObject * |
| OSError_new(PyTypeObject *type, PyObject *args, PyObject *kwds); |
| static int |
| OSError_init(PyOSErrorObject *self, PyObject *args, PyObject *kwds); |
| |
| static int |
| oserror_use_init(PyTypeObject *type) |
| { |
| /* When __init__ is defined in a OSError subclass, we want any |
| extraneous argument to __new__ to be ignored. The only reasonable |
| solution, given __new__ takes a variable number of arguments, |
| is to defer arg parsing and initialization to __init__. |
| |
| But when __new__ is overriden as well, it should call our __new__ |
| with the right arguments. |
| |
| (see http://bugs.python.org/issue12555#msg148829 ) |
| */ |
| if (type->tp_init != (initproc) OSError_init && |
| type->tp_new == (newfunc) OSError_new) { |
| assert((PyObject *) type != PyExc_OSError); |
| return 1; |
| } |
| return 0; |
| } |
| |
| static PyObject * |
| OSError_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| { |
| PyOSErrorObject *self = NULL; |
| PyObject *myerrno = NULL, *strerror = NULL, *filename = NULL; |
| #ifdef MS_WINDOWS |
| PyObject *winerror = NULL; |
| #endif |
| |
| if (!oserror_use_init(type)) { |
| if (!_PyArg_NoKeywords(type->tp_name, kwds)) |
| return NULL; |
| |
| Py_INCREF(args); |
| if (oserror_parse_args(&args, &myerrno, &strerror, &filename |
| #ifdef MS_WINDOWS |
| , &winerror |
| #endif |
| )) |
| goto error; |
| |
| if (myerrno && PyLong_Check(myerrno) && |
| errnomap && (PyObject *) type == PyExc_OSError) { |
| PyObject *newtype; |
| newtype = PyDict_GetItem(errnomap, myerrno); |
| if (newtype) { |
| assert(PyType_Check(newtype)); |
| type = (PyTypeObject *) newtype; |
| } |
| else if (PyErr_Occurred()) |
| goto error; |
| } |
| } |
| |
| self = (PyOSErrorObject *) type->tp_alloc(type, 0); |
| if (!self) |
| goto error; |
| |
| self->dict = NULL; |
| self->traceback = self->cause = self->context = NULL; |
| self->written = -1; |
| |
| if (!oserror_use_init(type)) { |
| if (oserror_init(self, &args, myerrno, strerror, filename |
| #ifdef MS_WINDOWS |
| , winerror |
| #endif |
| )) |
| goto error; |
| } |
| else { |
| self->args = PyTuple_New(0); |
| if (self->args == NULL) |
| goto error; |
| } |
| |
| return (PyObject *) self; |
| |
| error: |
| Py_XDECREF(args); |
| Py_XDECREF(self); |
| return NULL; |
| } |
| |
| static int |
| OSError_init(PyOSErrorObject *self, PyObject *args, PyObject *kwds) |
| { |
| PyObject *myerrno = NULL, *strerror = NULL, *filename = NULL; |
| #ifdef MS_WINDOWS |
| PyObject *winerror = NULL; |
| #endif |
| |
| if (!oserror_use_init(Py_TYPE(self))) |
| /* Everything already done in OSError_new */ |
| return 0; |
| |
| if (!_PyArg_NoKeywords(Py_TYPE(self)->tp_name, kwds)) |
| return -1; |
| |
| Py_INCREF(args); |
| if (oserror_parse_args(&args, &myerrno, &strerror, &filename |
| #ifdef MS_WINDOWS |
| , &winerror |
| #endif |
| )) |
| goto error; |
| |
| if (oserror_init(self, &args, myerrno, strerror, filename |
| #ifdef MS_WINDOWS |
| , winerror |
| #endif |
| )) |
| goto error; |
| |
| return 0; |
| |
| error: |
| Py_XDECREF(args); |
| return -1; |
| } |
| |
| static int |
| OSError_clear(PyOSErrorObject *self) |
| { |
| Py_CLEAR(self->myerrno); |
| Py_CLEAR(self->strerror); |
| Py_CLEAR(self->filename); |
| #ifdef MS_WINDOWS |
| Py_CLEAR(self->winerror); |
| #endif |
| return BaseException_clear((PyBaseExceptionObject *)self); |
| } |
| |
| static void |
| OSError_dealloc(PyOSErrorObject *self) |
| { |
| _PyObject_GC_UNTRACK(self); |
| OSError_clear(self); |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| } |
| |
| static int |
| OSError_traverse(PyOSErrorObject *self, visitproc visit, |
| void *arg) |
| { |
| Py_VISIT(self->myerrno); |
| Py_VISIT(self->strerror); |
| Py_VISIT(self->filename); |
| #ifdef MS_WINDOWS |
| Py_VISIT(self->winerror); |
| #endif |
| return BaseException_traverse((PyBaseExceptionObject *)self, visit, arg); |
| } |
| |
| static PyObject * |
| OSError_str(PyOSErrorObject *self) |
| { |
| #ifdef MS_WINDOWS |
| /* If available, winerror has the priority over myerrno */ |
| if (self->winerror && self->filename) |
| return PyUnicode_FromFormat("[Error %S] %S: %R", |
| self->winerror ? self->winerror: Py_None, |
| self->strerror ? self->strerror: Py_None, |
| self->filename); |
| if (self->winerror && self->strerror) |
| return PyUnicode_FromFormat("[Error %S] %S", |
| self->winerror ? self->winerror: Py_None, |
| self->strerror ? self->strerror: Py_None); |
| #endif |
| if (self->filename) |
| return PyUnicode_FromFormat("[Errno %S] %S: %R", |
| self->myerrno ? self->myerrno: Py_None, |
| self->strerror ? self->strerror: Py_None, |
| self->filename); |
| if (self->myerrno && self->strerror) |
| return PyUnicode_FromFormat("[Errno %S] %S", |
| self->myerrno ? self->myerrno: Py_None, |
| self->strerror ? self->strerror: Py_None); |
| return BaseException_str((PyBaseExceptionObject *)self); |
| } |
| |
| static PyObject * |
| OSError_reduce(PyOSErrorObject *self) |
| { |
| PyObject *args = self->args; |
| PyObject *res = NULL, *tmp; |
| |
| /* self->args is only the first two real arguments if there was a |
| * file name given to OSError. */ |
| if (PyTuple_GET_SIZE(args) == 2 && self->filename) { |
| args = PyTuple_New(3); |
| if (!args) |
| return NULL; |
| |
| tmp = PyTuple_GET_ITEM(self->args, 0); |
| Py_INCREF(tmp); |
| PyTuple_SET_ITEM(args, 0, tmp); |
| |
| tmp = PyTuple_GET_ITEM(self->args, 1); |
| Py_INCREF(tmp); |
| PyTuple_SET_ITEM(args, 1, tmp); |
| |
| Py_INCREF(self->filename); |
| PyTuple_SET_ITEM(args, 2, self->filename); |
| } else |
| Py_INCREF(args); |
| |
| if (self->dict) |
| res = PyTuple_Pack(3, Py_TYPE(self), args, self->dict); |
| else |
| res = PyTuple_Pack(2, Py_TYPE(self), args); |
| Py_DECREF(args); |
| return res; |
| } |
| |
| static PyObject * |
| OSError_written_get(PyOSErrorObject *self, void *context) |
| { |
| if (self->written == -1) { |
| PyErr_SetString(PyExc_AttributeError, "characters_written"); |
| return NULL; |
| } |
| return PyLong_FromSsize_t(self->written); |
| } |
| |
| static int |
| OSError_written_set(PyOSErrorObject *self, PyObject *arg, void *context) |
| { |
| Py_ssize_t n; |
| n = PyNumber_AsSsize_t(arg, PyExc_ValueError); |
| if (n == -1 && PyErr_Occurred()) |
| return -1; |
| self->written = n; |
| return 0; |
| } |
| |
| static PyMemberDef OSError_members[] = { |
| {"errno", T_OBJECT, offsetof(PyOSErrorObject, myerrno), 0, |
| PyDoc_STR("POSIX exception code")}, |
| {"strerror", T_OBJECT, offsetof(PyOSErrorObject, strerror), 0, |
| PyDoc_STR("exception strerror")}, |
| {"filename", T_OBJECT, offsetof(PyOSErrorObject, filename), 0, |
| PyDoc_STR("exception filename")}, |
| #ifdef MS_WINDOWS |
| {"winerror", T_OBJECT, offsetof(PyOSErrorObject, winerror), 0, |
| PyDoc_STR("Win32 exception code")}, |
| #endif |
| {NULL} /* Sentinel */ |
| }; |
| |
| static PyMethodDef OSError_methods[] = { |
| {"__reduce__", (PyCFunction)OSError_reduce, METH_NOARGS}, |
| {NULL} |
| }; |
| |
| static PyGetSetDef OSError_getset[] = { |
| {"characters_written", (getter) OSError_written_get, |
| (setter) OSError_written_set, NULL}, |
| {NULL} |
| }; |
| |
| |
| ComplexExtendsException(PyExc_Exception, OSError, |
| OSError, OSError_new, |
| OSError_methods, OSError_members, OSError_getset, |
| OSError_str, |
| "Base class for I/O related errors."); |
| |
| |
| /* |
| * Various OSError subclasses |
| */ |
| MiddlingExtendsException(PyExc_OSError, BlockingIOError, OSError, |
| "I/O operation would block."); |
| MiddlingExtendsException(PyExc_OSError, ConnectionError, OSError, |
| "Connection error."); |
| MiddlingExtendsException(PyExc_OSError, ChildProcessError, OSError, |
| "Child process error."); |
| MiddlingExtendsException(PyExc_ConnectionError, BrokenPipeError, OSError, |
| "Broken pipe."); |
| MiddlingExtendsException(PyExc_ConnectionError, ConnectionAbortedError, OSError, |
| "Connection aborted."); |
| MiddlingExtendsException(PyExc_ConnectionError, ConnectionRefusedError, OSError, |
| "Connection refused."); |
| MiddlingExtendsException(PyExc_ConnectionError, ConnectionResetError, OSError, |
| "Connection reset."); |
| MiddlingExtendsException(PyExc_OSError, FileExistsError, OSError, |
| "File already exists."); |
| MiddlingExtendsException(PyExc_OSError, FileNotFoundError, OSError, |
| "File not found."); |
| MiddlingExtendsException(PyExc_OSError, IsADirectoryError, OSError, |
| "Operation doesn't work on directories."); |
| MiddlingExtendsException(PyExc_OSError, NotADirectoryError, OSError, |
| "Operation only works on directories."); |
| MiddlingExtendsException(PyExc_OSError, InterruptedError, OSError, |
| "Interrupted by signal."); |
| MiddlingExtendsException(PyExc_OSError, PermissionError, OSError, |
| "Not enough permissions."); |
| MiddlingExtendsException(PyExc_OSError, ProcessLookupError, OSError, |
| "Process not found."); |
| MiddlingExtendsException(PyExc_OSError, TimeoutError, OSError, |
| "Timeout expired."); |
| |
| /* |
| * EOFError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, EOFError, |
| "Read beyond end of file."); |
| |
| |
| /* |
| * RuntimeError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, RuntimeError, |
| "Unspecified run-time error."); |
| |
| |
| /* |
| * NotImplementedError extends RuntimeError |
| */ |
| SimpleExtendsException(PyExc_RuntimeError, NotImplementedError, |
| "Method or function hasn't been implemented yet."); |
| |
| /* |
| * NameError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, NameError, |
| "Name not found globally."); |
| |
| /* |
| * UnboundLocalError extends NameError |
| */ |
| SimpleExtendsException(PyExc_NameError, UnboundLocalError, |
| "Local name referenced but not bound to a value."); |
| |
| /* |
| * AttributeError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, AttributeError, |
| "Attribute not found."); |
| |
| |
| /* |
| * SyntaxError extends Exception |
| */ |
| |
| static int |
| SyntaxError_init(PySyntaxErrorObject *self, PyObject *args, PyObject *kwds) |
| { |
| PyObject *info = NULL; |
| Py_ssize_t lenargs = PyTuple_GET_SIZE(args); |
| |
| if (BaseException_init((PyBaseExceptionObject *)self, args, kwds) == -1) |
| return -1; |
| |
| if (lenargs >= 1) { |
| Py_CLEAR(self->msg); |
| self->msg = PyTuple_GET_ITEM(args, 0); |
| Py_INCREF(self->msg); |
| } |
| if (lenargs == 2) { |
| info = PyTuple_GET_ITEM(args, 1); |
| info = PySequence_Tuple(info); |
| if (!info) |
| return -1; |
| |
| if (PyTuple_GET_SIZE(info) != 4) { |
| /* not a very good error message, but it's what Python 2.4 gives */ |
| PyErr_SetString(PyExc_IndexError, "tuple index out of range"); |
| Py_DECREF(info); |
| return -1; |
| } |
| |
| Py_CLEAR(self->filename); |
| self->filename = PyTuple_GET_ITEM(info, 0); |
| Py_INCREF(self->filename); |
| |
| Py_CLEAR(self->lineno); |
| self->lineno = PyTuple_GET_ITEM(info, 1); |
| Py_INCREF(self->lineno); |
| |
| Py_CLEAR(self->offset); |
| self->offset = PyTuple_GET_ITEM(info, 2); |
| Py_INCREF(self->offset); |
| |
| Py_CLEAR(self->text); |
| self->text = PyTuple_GET_ITEM(info, 3); |
| Py_INCREF(self->text); |
| |
| Py_DECREF(info); |
| } |
| return 0; |
| } |
| |
| static int |
| SyntaxError_clear(PySyntaxErrorObject *self) |
| { |
| Py_CLEAR(self->msg); |
| Py_CLEAR(self->filename); |
| Py_CLEAR(self->lineno); |
| Py_CLEAR(self->offset); |
| Py_CLEAR(self->text); |
| Py_CLEAR(self->print_file_and_line); |
| return BaseException_clear((PyBaseExceptionObject *)self); |
| } |
| |
| static void |
| SyntaxError_dealloc(PySyntaxErrorObject *self) |
| { |
| _PyObject_GC_UNTRACK(self); |
| SyntaxError_clear(self); |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| } |
| |
| static int |
| SyntaxError_traverse(PySyntaxErrorObject *self, visitproc visit, void *arg) |
| { |
| Py_VISIT(self->msg); |
| Py_VISIT(self->filename); |
| Py_VISIT(self->lineno); |
| Py_VISIT(self->offset); |
| Py_VISIT(self->text); |
| Py_VISIT(self->print_file_and_line); |
| return BaseException_traverse((PyBaseExceptionObject *)self, visit, arg); |
| } |
| |
| /* This is called "my_basename" instead of just "basename" to avoid name |
| conflicts with glibc; basename is already prototyped if _GNU_SOURCE is |
| defined, and Python does define that. */ |
| static PyObject* |
| my_basename(PyObject *name) |
| { |
| Py_ssize_t i, size, offset; |
| int kind; |
| void *data; |
| |
| if (PyUnicode_READY(name)) |
| return NULL; |
| kind = PyUnicode_KIND(name); |
| data = PyUnicode_DATA(name); |
| size = PyUnicode_GET_LENGTH(name); |
| offset = 0; |
| for(i=0; i < size; i++) { |
| if (PyUnicode_READ(kind, data, i) == SEP) |
| offset = i + 1; |
| } |
| if (offset != 0) |
| return PyUnicode_Substring(name, offset, size); |
| else { |
| Py_INCREF(name); |
| return name; |
| } |
| } |
| |
| |
| static PyObject * |
| SyntaxError_str(PySyntaxErrorObject *self) |
| { |
| int have_lineno = 0; |
| PyObject *filename; |
| PyObject *result; |
| /* Below, we always ignore overflow errors, just printing -1. |
| Still, we cannot allow an OverflowError to be raised, so |
| we need to call PyLong_AsLongAndOverflow. */ |
| int overflow; |
| |
| /* XXX -- do all the additional formatting with filename and |
| lineno here */ |
| |
| if (self->filename && PyUnicode_Check(self->filename)) { |
| filename = my_basename(self->filename); |
| if (filename == NULL) |
| return NULL; |
| } else { |
| filename = NULL; |
| } |
| have_lineno = (self->lineno != NULL) && PyLong_CheckExact(self->lineno); |
| |
| if (!filename && !have_lineno) |
| return PyObject_Str(self->msg ? self->msg : Py_None); |
| |
| if (filename && have_lineno) |
| result = PyUnicode_FromFormat("%S (%U, line %ld)", |
| self->msg ? self->msg : Py_None, |
| filename, |
| PyLong_AsLongAndOverflow(self->lineno, &overflow)); |
| else if (filename) |
| result = PyUnicode_FromFormat("%S (%U)", |
| self->msg ? self->msg : Py_None, |
| filename); |
| else /* only have_lineno */ |
| result = PyUnicode_FromFormat("%S (line %ld)", |
| self->msg ? self->msg : Py_None, |
| PyLong_AsLongAndOverflow(self->lineno, &overflow)); |
| Py_XDECREF(filename); |
| return result; |
| } |
| |
| static PyMemberDef SyntaxError_members[] = { |
| {"msg", T_OBJECT, offsetof(PySyntaxErrorObject, msg), 0, |
| PyDoc_STR("exception msg")}, |
| {"filename", T_OBJECT, offsetof(PySyntaxErrorObject, filename), 0, |
| PyDoc_STR("exception filename")}, |
| {"lineno", T_OBJECT, offsetof(PySyntaxErrorObject, lineno), 0, |
| PyDoc_STR("exception lineno")}, |
| {"offset", T_OBJECT, offsetof(PySyntaxErrorObject, offset), 0, |
| PyDoc_STR("exception offset")}, |
| {"text", T_OBJECT, offsetof(PySyntaxErrorObject, text), 0, |
| PyDoc_STR("exception text")}, |
| {"print_file_and_line", T_OBJECT, |
| offsetof(PySyntaxErrorObject, print_file_and_line), 0, |
| PyDoc_STR("exception print_file_and_line")}, |
| {NULL} /* Sentinel */ |
| }; |
| |
| ComplexExtendsException(PyExc_Exception, SyntaxError, SyntaxError, |
| 0, 0, SyntaxError_members, 0, |
| SyntaxError_str, "Invalid syntax."); |
| |
| |
| /* |
| * IndentationError extends SyntaxError |
| */ |
| MiddlingExtendsException(PyExc_SyntaxError, IndentationError, SyntaxError, |
| "Improper indentation."); |
| |
| |
| /* |
| * TabError extends IndentationError |
| */ |
| MiddlingExtendsException(PyExc_IndentationError, TabError, SyntaxError, |
| "Improper mixture of spaces and tabs."); |
| |
| |
| /* |
| * LookupError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, LookupError, |
| "Base class for lookup errors."); |
| |
| |
| /* |
| * IndexError extends LookupError |
| */ |
| SimpleExtendsException(PyExc_LookupError, IndexError, |
| "Sequence index out of range."); |
| |
| |
| /* |
| * KeyError extends LookupError |
| */ |
| static PyObject * |
| KeyError_str(PyBaseExceptionObject *self) |
| { |
| /* If args is a tuple of exactly one item, apply repr to args[0]. |
| This is done so that e.g. the exception raised by {}[''] prints |
| KeyError: '' |
| rather than the confusing |
| KeyError |
| alone. The downside is that if KeyError is raised with an explanatory |
| string, that string will be displayed in quotes. Too bad. |
| If args is anything else, use the default BaseException__str__(). |
| */ |
| if (PyTuple_GET_SIZE(self->args) == 1) { |
| return PyObject_Repr(PyTuple_GET_ITEM(self->args, 0)); |
| } |
| return BaseException_str(self); |
| } |
| |
| ComplexExtendsException(PyExc_LookupError, KeyError, BaseException, |
| 0, 0, 0, 0, KeyError_str, "Mapping key not found."); |
| |
| |
| /* |
| * ValueError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, ValueError, |
| "Inappropriate argument value (of correct type)."); |
| |
| /* |
| * UnicodeError extends ValueError |
| */ |
| |
| SimpleExtendsException(PyExc_ValueError, UnicodeError, |
| "Unicode related error."); |
| |
| static PyObject * |
| get_string(PyObject *attr, const char *name) |
| { |
| if (!attr) { |
| PyErr_Format(PyExc_TypeError, "%.200s attribute not set", name); |
| return NULL; |
| } |
| |
| if (!PyBytes_Check(attr)) { |
| PyErr_Format(PyExc_TypeError, "%.200s attribute must be bytes", name); |
| return NULL; |
| } |
| Py_INCREF(attr); |
| return attr; |
| } |
| |
| static PyObject * |
| get_unicode(PyObject *attr, const char *name) |
| { |
| if (!attr) { |
| PyErr_Format(PyExc_TypeError, "%.200s attribute not set", name); |
| return NULL; |
| } |
| |
| if (!PyUnicode_Check(attr)) { |
| PyErr_Format(PyExc_TypeError, |
| "%.200s attribute must be unicode", name); |
| return NULL; |
| } |
| Py_INCREF(attr); |
| return attr; |
| } |
| |
| static int |
| set_unicodefromstring(PyObject **attr, const char *value) |
| { |
| PyObject *obj = PyUnicode_FromString(value); |
| if (!obj) |
| return -1; |
| Py_CLEAR(*attr); |
| *attr = obj; |
| return 0; |
| } |
| |
| PyObject * |
| PyUnicodeEncodeError_GetEncoding(PyObject *exc) |
| { |
| return get_unicode(((PyUnicodeErrorObject *)exc)->encoding, "encoding"); |
| } |
| |
| PyObject * |
| PyUnicodeDecodeError_GetEncoding(PyObject *exc) |
| { |
| return get_unicode(((PyUnicodeErrorObject *)exc)->encoding, "encoding"); |
| } |
| |
| PyObject * |
| PyUnicodeEncodeError_GetObject(PyObject *exc) |
| { |
| return get_unicode(((PyUnicodeErrorObject *)exc)->object, "object"); |
| } |
| |
| PyObject * |
| PyUnicodeDecodeError_GetObject(PyObject *exc) |
| { |
| return get_string(((PyUnicodeErrorObject *)exc)->object, "object"); |
| } |
| |
| PyObject * |
| PyUnicodeTranslateError_GetObject(PyObject *exc) |
| { |
| return get_unicode(((PyUnicodeErrorObject *)exc)->object, "object"); |
| } |
| |
| int |
| PyUnicodeEncodeError_GetStart(PyObject *exc, Py_ssize_t *start) |
| { |
| Py_ssize_t size; |
| PyObject *obj = get_unicode(((PyUnicodeErrorObject *)exc)->object, |
| "object"); |
| if (!obj) |
| return -1; |
| *start = ((PyUnicodeErrorObject *)exc)->start; |
| size = PyUnicode_GET_LENGTH(obj); |
| if (*start<0) |
| *start = 0; /*XXX check for values <0*/ |
| if (*start>=size) |
| *start = size-1; |
| Py_DECREF(obj); |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeDecodeError_GetStart(PyObject *exc, Py_ssize_t *start) |
| { |
| Py_ssize_t size; |
| PyObject *obj = get_string(((PyUnicodeErrorObject *)exc)->object, "object"); |
| if (!obj) |
| return -1; |
| size = PyBytes_GET_SIZE(obj); |
| *start = ((PyUnicodeErrorObject *)exc)->start; |
| if (*start<0) |
| *start = 0; |
| if (*start>=size) |
| *start = size-1; |
| Py_DECREF(obj); |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeTranslateError_GetStart(PyObject *exc, Py_ssize_t *start) |
| { |
| return PyUnicodeEncodeError_GetStart(exc, start); |
| } |
| |
| |
| int |
| PyUnicodeEncodeError_SetStart(PyObject *exc, Py_ssize_t start) |
| { |
| ((PyUnicodeErrorObject *)exc)->start = start; |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeDecodeError_SetStart(PyObject *exc, Py_ssize_t start) |
| { |
| ((PyUnicodeErrorObject *)exc)->start = start; |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeTranslateError_SetStart(PyObject *exc, Py_ssize_t start) |
| { |
| ((PyUnicodeErrorObject *)exc)->start = start; |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeEncodeError_GetEnd(PyObject *exc, Py_ssize_t *end) |
| { |
| Py_ssize_t size; |
| PyObject *obj = get_unicode(((PyUnicodeErrorObject *)exc)->object, |
| "object"); |
| if (!obj) |
| return -1; |
| *end = ((PyUnicodeErrorObject *)exc)->end; |
| size = PyUnicode_GET_LENGTH(obj); |
| if (*end<1) |
| *end = 1; |
| if (*end>size) |
| *end = size; |
| Py_DECREF(obj); |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeDecodeError_GetEnd(PyObject *exc, Py_ssize_t *end) |
| { |
| Py_ssize_t size; |
| PyObject *obj = get_string(((PyUnicodeErrorObject *)exc)->object, "object"); |
| if (!obj) |
| return -1; |
| size = PyBytes_GET_SIZE(obj); |
| *end = ((PyUnicodeErrorObject *)exc)->end; |
| if (*end<1) |
| *end = 1; |
| if (*end>size) |
| *end = size; |
| Py_DECREF(obj); |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeTranslateError_GetEnd(PyObject *exc, Py_ssize_t *start) |
| { |
| return PyUnicodeEncodeError_GetEnd(exc, start); |
| } |
| |
| |
| int |
| PyUnicodeEncodeError_SetEnd(PyObject *exc, Py_ssize_t end) |
| { |
| ((PyUnicodeErrorObject *)exc)->end = end; |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeDecodeError_SetEnd(PyObject *exc, Py_ssize_t end) |
| { |
| ((PyUnicodeErrorObject *)exc)->end = end; |
| return 0; |
| } |
| |
| |
| int |
| PyUnicodeTranslateError_SetEnd(PyObject *exc, Py_ssize_t end) |
| { |
| ((PyUnicodeErrorObject *)exc)->end = end; |
| return 0; |
| } |
| |
| PyObject * |
| PyUnicodeEncodeError_GetReason(PyObject *exc) |
| { |
| return get_unicode(((PyUnicodeErrorObject *)exc)->reason, "reason"); |
| } |
| |
| |
| PyObject * |
| PyUnicodeDecodeError_GetReason(PyObject *exc) |
| { |
| return get_unicode(((PyUnicodeErrorObject *)exc)->reason, "reason"); |
| } |
| |
| |
| PyObject * |
| PyUnicodeTranslateError_GetReason(PyObject *exc) |
| { |
| return get_unicode(((PyUnicodeErrorObject *)exc)->reason, "reason"); |
| } |
| |
| |
| int |
| PyUnicodeEncodeError_SetReason(PyObject *exc, const char *reason) |
| { |
| return set_unicodefromstring(&((PyUnicodeErrorObject *)exc)->reason, |
| reason); |
| } |
| |
| |
| int |
| PyUnicodeDecodeError_SetReason(PyObject *exc, const char *reason) |
| { |
| return set_unicodefromstring(&((PyUnicodeErrorObject *)exc)->reason, |
| reason); |
| } |
| |
| |
| int |
| PyUnicodeTranslateError_SetReason(PyObject *exc, const char *reason) |
| { |
| return set_unicodefromstring(&((PyUnicodeErrorObject *)exc)->reason, |
| reason); |
| } |
| |
| |
| static int |
| UnicodeError_clear(PyUnicodeErrorObject *self) |
| { |
| Py_CLEAR(self->encoding); |
| Py_CLEAR(self->object); |
| Py_CLEAR(self->reason); |
| return BaseException_clear((PyBaseExceptionObject *)self); |
| } |
| |
| static void |
| UnicodeError_dealloc(PyUnicodeErrorObject *self) |
| { |
| _PyObject_GC_UNTRACK(self); |
| UnicodeError_clear(self); |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| } |
| |
| static int |
| UnicodeError_traverse(PyUnicodeErrorObject *self, visitproc visit, void *arg) |
| { |
| Py_VISIT(self->encoding); |
| Py_VISIT(self->object); |
| Py_VISIT(self->reason); |
| return BaseException_traverse((PyBaseExceptionObject *)self, visit, arg); |
| } |
| |
| static PyMemberDef UnicodeError_members[] = { |
| {"encoding", T_OBJECT, offsetof(PyUnicodeErrorObject, encoding), 0, |
| PyDoc_STR("exception encoding")}, |
| {"object", T_OBJECT, offsetof(PyUnicodeErrorObject, object), 0, |
| PyDoc_STR("exception object")}, |
| {"start", T_PYSSIZET, offsetof(PyUnicodeErrorObject, start), 0, |
| PyDoc_STR("exception start")}, |
| {"end", T_PYSSIZET, offsetof(PyUnicodeErrorObject, end), 0, |
| PyDoc_STR("exception end")}, |
| {"reason", T_OBJECT, offsetof(PyUnicodeErrorObject, reason), 0, |
| PyDoc_STR("exception reason")}, |
| {NULL} /* Sentinel */ |
| }; |
| |
| |
| /* |
| * UnicodeEncodeError extends UnicodeError |
| */ |
| |
| static int |
| UnicodeEncodeError_init(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| PyUnicodeErrorObject *err; |
| |
| if (BaseException_init((PyBaseExceptionObject *)self, args, kwds) == -1) |
| return -1; |
| |
| err = (PyUnicodeErrorObject *)self; |
| |
| Py_CLEAR(err->encoding); |
| Py_CLEAR(err->object); |
| Py_CLEAR(err->reason); |
| |
| if (!PyArg_ParseTuple(args, "O!O!nnO!", |
| &PyUnicode_Type, &err->encoding, |
| &PyUnicode_Type, &err->object, |
| &err->start, |
| &err->end, |
| &PyUnicode_Type, &err->reason)) { |
| err->encoding = err->object = err->reason = NULL; |
| return -1; |
| } |
| |
| if (PyUnicode_READY(err->object) < -1) { |
| err->encoding = NULL; |
| return -1; |
| } |
| |
| Py_INCREF(err->encoding); |
| Py_INCREF(err->object); |
| Py_INCREF(err->reason); |
| |
| return 0; |
| } |
| |
| static PyObject * |
| UnicodeEncodeError_str(PyObject *self) |
| { |
| PyUnicodeErrorObject *uself = (PyUnicodeErrorObject *)self; |
| PyObject *result = NULL; |
| PyObject *reason_str = NULL; |
| PyObject *encoding_str = NULL; |
| |
| /* Get reason and encoding as strings, which they might not be if |
| they've been modified after we were contructed. */ |
| reason_str = PyObject_Str(uself->reason); |
| if (reason_str == NULL) |
| goto done; |
| encoding_str = PyObject_Str(uself->encoding); |
| if (encoding_str == NULL) |
| goto done; |
| |
| if (uself->start < PyUnicode_GET_LENGTH(uself->object) && uself->end == uself->start+1) { |
| Py_UCS4 badchar = PyUnicode_ReadChar(uself->object, uself->start); |
| const char *fmt; |
| if (badchar <= 0xff) |
| fmt = "'%U' codec can't encode character '\\x%02x' in position %zd: %U"; |
| else if (badchar <= 0xffff) |
| fmt = "'%U' codec can't encode character '\\u%04x' in position %zd: %U"; |
| else |
| fmt = "'%U' codec can't encode character '\\U%08x' in position %zd: %U"; |
| result = PyUnicode_FromFormat( |
| fmt, |
| encoding_str, |
| (int)badchar, |
| uself->start, |
| reason_str); |
| } |
| else { |
| result = PyUnicode_FromFormat( |
| "'%U' codec can't encode characters in position %zd-%zd: %U", |
| encoding_str, |
| uself->start, |
| uself->end-1, |
| reason_str); |
| } |
| done: |
| Py_XDECREF(reason_str); |
| Py_XDECREF(encoding_str); |
| return result; |
| } |
| |
| static PyTypeObject _PyExc_UnicodeEncodeError = { |
| PyVarObject_HEAD_INIT(NULL, 0) |
| "UnicodeEncodeError", |
| sizeof(PyUnicodeErrorObject), 0, |
| (destructor)UnicodeError_dealloc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| (reprfunc)UnicodeEncodeError_str, 0, 0, 0, |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, |
| PyDoc_STR("Unicode encoding error."), (traverseproc)UnicodeError_traverse, |
| (inquiry)UnicodeError_clear, 0, 0, 0, 0, 0, UnicodeError_members, |
| 0, &_PyExc_UnicodeError, 0, 0, 0, offsetof(PyUnicodeErrorObject, dict), |
| (initproc)UnicodeEncodeError_init, 0, BaseException_new, |
| }; |
| PyObject *PyExc_UnicodeEncodeError = (PyObject *)&_PyExc_UnicodeEncodeError; |
| |
| PyObject * |
| PyUnicodeEncodeError_Create( |
| const char *encoding, const Py_UNICODE *object, Py_ssize_t length, |
| Py_ssize_t start, Py_ssize_t end, const char *reason) |
| { |
| return PyObject_CallFunction(PyExc_UnicodeEncodeError, "su#nns", |
| encoding, object, length, start, end, reason); |
| } |
| |
| |
| /* |
| * UnicodeDecodeError extends UnicodeError |
| */ |
| |
| static int |
| UnicodeDecodeError_init(PyObject *self, PyObject *args, PyObject *kwds) |
| { |
| PyUnicodeErrorObject *ude; |
| const char *data; |
| Py_ssize_t size; |
| |
| if (BaseException_init((PyBaseExceptionObject *)self, args, kwds) == -1) |
| return -1; |
| |
| ude = (PyUnicodeErrorObject *)self; |
| |
| Py_CLEAR(ude->encoding); |
| Py_CLEAR(ude->object); |
| Py_CLEAR(ude->reason); |
| |
| if (!PyArg_ParseTuple(args, "O!OnnO!", |
| &PyUnicode_Type, &ude->encoding, |
| &ude->object, |
| &ude->start, |
| &ude->end, |
| &PyUnicode_Type, &ude->reason)) { |
| ude->encoding = ude->object = ude->reason = NULL; |
| return -1; |
| } |
| |
| if (!PyBytes_Check(ude->object)) { |
| if (PyObject_AsReadBuffer(ude->object, (const void **)&data, &size)) { |
| ude->encoding = ude->object = ude->reason = NULL; |
| return -1; |
| } |
| ude->object = PyBytes_FromStringAndSize(data, size); |
| } |
| else { |
| Py_INCREF(ude->object); |
| } |
| |
| Py_INCREF(ude->encoding); |
| Py_INCREF(ude->reason); |
| |
| return 0; |
| } |
| |
| static PyObject * |
| UnicodeDecodeError_str(PyObject *self) |
| { |
| PyUnicodeErrorObject *uself = (PyUnicodeErrorObject *)self; |
| PyObject *result = NULL; |
| PyObject *reason_str = NULL; |
| PyObject *encoding_str = NULL; |
| |
| /* Get reason and encoding as strings, which they might not be if |
| they've been modified after we were contructed. */ |
| reason_str = PyObject_Str(uself->reason); |
| if (reason_str == NULL) |
| goto done; |
| encoding_str = PyObject_Str(uself->encoding); |
| if (encoding_str == NULL) |
| goto done; |
| |
| if (uself->start < PyBytes_GET_SIZE(uself->object) && uself->end == uself->start+1) { |
| int byte = (int)(PyBytes_AS_STRING(((PyUnicodeErrorObject *)self)->object)[uself->start]&0xff); |
| result = PyUnicode_FromFormat( |
| "'%U' codec can't decode byte 0x%02x in position %zd: %U", |
| encoding_str, |
| byte, |
| uself->start, |
| reason_str); |
| } |
| else { |
| result = PyUnicode_FromFormat( |
| "'%U' codec can't decode bytes in position %zd-%zd: %U", |
| encoding_str, |
| uself->start, |
| uself->end-1, |
| reason_str |
| ); |
| } |
| done: |
| Py_XDECREF(reason_str); |
| Py_XDECREF(encoding_str); |
| return result; |
| } |
| |
| static PyTypeObject _PyExc_UnicodeDecodeError = { |
| PyVarObject_HEAD_INIT(NULL, 0) |
| "UnicodeDecodeError", |
| sizeof(PyUnicodeErrorObject), 0, |
| (destructor)UnicodeError_dealloc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| (reprfunc)UnicodeDecodeError_str, 0, 0, 0, |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, |
| PyDoc_STR("Unicode decoding error."), (traverseproc)UnicodeError_traverse, |
| (inquiry)UnicodeError_clear, 0, 0, 0, 0, 0, UnicodeError_members, |
| 0, &_PyExc_UnicodeError, 0, 0, 0, offsetof(PyUnicodeErrorObject, dict), |
| (initproc)UnicodeDecodeError_init, 0, BaseException_new, |
| }; |
| PyObject *PyExc_UnicodeDecodeError = (PyObject *)&_PyExc_UnicodeDecodeError; |
| |
| PyObject * |
| PyUnicodeDecodeError_Create( |
| const char *encoding, const char *object, Py_ssize_t length, |
| Py_ssize_t start, Py_ssize_t end, const char *reason) |
| { |
| return PyObject_CallFunction(PyExc_UnicodeDecodeError, "sy#nns", |
| encoding, object, length, start, end, reason); |
| } |
| |
| |
| /* |
| * UnicodeTranslateError extends UnicodeError |
| */ |
| |
| static int |
| UnicodeTranslateError_init(PyUnicodeErrorObject *self, PyObject *args, |
| PyObject *kwds) |
| { |
| if (BaseException_init((PyBaseExceptionObject *)self, args, kwds) == -1) |
| return -1; |
| |
| Py_CLEAR(self->object); |
| Py_CLEAR(self->reason); |
| |
| if (!PyArg_ParseTuple(args, "O!nnO!", |
| &PyUnicode_Type, &self->object, |
| &self->start, |
| &self->end, |
| &PyUnicode_Type, &self->reason)) { |
| self->object = self->reason = NULL; |
| return -1; |
| } |
| |
| Py_INCREF(self->object); |
| Py_INCREF(self->reason); |
| |
| return 0; |
| } |
| |
| |
| static PyObject * |
| UnicodeTranslateError_str(PyObject *self) |
| { |
| PyUnicodeErrorObject *uself = (PyUnicodeErrorObject *)self; |
| PyObject *result = NULL; |
| PyObject *reason_str = NULL; |
| |
| /* Get reason as a string, which it might not be if it's been |
| modified after we were contructed. */ |
| reason_str = PyObject_Str(uself->reason); |
| if (reason_str == NULL) |
| goto done; |
| |
| if (uself->start < PyUnicode_GET_LENGTH(uself->object) && uself->end == uself->start+1) { |
| Py_UCS4 badchar = PyUnicode_ReadChar(uself->object, uself->start); |
| const char *fmt; |
| if (badchar <= 0xff) |
| fmt = "can't translate character '\\x%02x' in position %zd: %U"; |
| else if (badchar <= 0xffff) |
| fmt = "can't translate character '\\u%04x' in position %zd: %U"; |
| else |
| fmt = "can't translate character '\\U%08x' in position %zd: %U"; |
| result = PyUnicode_FromFormat( |
| fmt, |
| (int)badchar, |
| uself->start, |
| reason_str |
| ); |
| } else { |
| result = PyUnicode_FromFormat( |
| "can't translate characters in position %zd-%zd: %U", |
| uself->start, |
| uself->end-1, |
| reason_str |
| ); |
| } |
| done: |
| Py_XDECREF(reason_str); |
| return result; |
| } |
| |
| static PyTypeObject _PyExc_UnicodeTranslateError = { |
| PyVarObject_HEAD_INIT(NULL, 0) |
| "UnicodeTranslateError", |
| sizeof(PyUnicodeErrorObject), 0, |
| (destructor)UnicodeError_dealloc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| (reprfunc)UnicodeTranslateError_str, 0, 0, 0, |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, |
| PyDoc_STR("Unicode translation error."), (traverseproc)UnicodeError_traverse, |
| (inquiry)UnicodeError_clear, 0, 0, 0, 0, 0, UnicodeError_members, |
| 0, &_PyExc_UnicodeError, 0, 0, 0, offsetof(PyUnicodeErrorObject, dict), |
| (initproc)UnicodeTranslateError_init, 0, BaseException_new, |
| }; |
| PyObject *PyExc_UnicodeTranslateError = (PyObject *)&_PyExc_UnicodeTranslateError; |
| |
| /* Deprecated. */ |
| PyObject * |
| PyUnicodeTranslateError_Create( |
| const Py_UNICODE *object, Py_ssize_t length, |
| Py_ssize_t start, Py_ssize_t end, const char *reason) |
| { |
| return PyObject_CallFunction(PyExc_UnicodeTranslateError, "u#nns", |
| object, length, start, end, reason); |
| } |
| |
| PyObject * |
| _PyUnicodeTranslateError_Create( |
| PyObject *object, |
| Py_ssize_t start, Py_ssize_t end, const char *reason) |
| { |
| return PyObject_CallFunction(PyExc_UnicodeTranslateError, "Ons", |
| object, start, end, reason); |
| } |
| |
| /* |
| * AssertionError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, AssertionError, |
| "Assertion failed."); |
| |
| |
| /* |
| * ArithmeticError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, ArithmeticError, |
| "Base class for arithmetic errors."); |
| |
| |
| /* |
| * FloatingPointError extends ArithmeticError |
| */ |
| SimpleExtendsException(PyExc_ArithmeticError, FloatingPointError, |
| "Floating point operation failed."); |
| |
| |
| /* |
| * OverflowError extends ArithmeticError |
| */ |
| SimpleExtendsException(PyExc_ArithmeticError, OverflowError, |
| "Result too large to be represented."); |
| |
| |
| /* |
| * ZeroDivisionError extends ArithmeticError |
| */ |
| SimpleExtendsException(PyExc_ArithmeticError, ZeroDivisionError, |
| "Second argument to a division or modulo operation was zero."); |
| |
| |
| /* |
| * SystemError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, SystemError, |
| "Internal error in the Python interpreter.\n" |
| "\n" |
| "Please report this to the Python maintainer, along with the traceback,\n" |
| "the Python version, and the hardware/OS platform and version."); |
| |
| |
| /* |
| * ReferenceError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, ReferenceError, |
| "Weak ref proxy used after referent went away."); |
| |
| |
| /* |
| * MemoryError extends Exception |
| */ |
| |
| #define MEMERRORS_SAVE 16 |
| static PyBaseExceptionObject *memerrors_freelist = NULL; |
| static int memerrors_numfree = 0; |
| |
| static PyObject * |
| MemoryError_new(PyTypeObject *type, PyObject *args, PyObject *kwds) |
| { |
| PyBaseExceptionObject *self; |
| |
| if (type != (PyTypeObject *) PyExc_MemoryError) |
| return BaseException_new(type, args, kwds); |
| if (memerrors_freelist == NULL) |
| return BaseException_new(type, args, kwds); |
| /* Fetch object from freelist and revive it */ |
| self = memerrors_freelist; |
| self->args = PyTuple_New(0); |
| /* This shouldn't happen since the empty tuple is persistent */ |
| if (self->args == NULL) |
| return NULL; |
| memerrors_freelist = (PyBaseExceptionObject *) self->dict; |
| memerrors_numfree--; |
| self->dict = NULL; |
| _Py_NewReference((PyObject *)self); |
| _PyObject_GC_TRACK(self); |
| return (PyObject *)self; |
| } |
| |
| static void |
| MemoryError_dealloc(PyBaseExceptionObject *self) |
| { |
| _PyObject_GC_UNTRACK(self); |
| BaseException_clear(self); |
| if (memerrors_numfree >= MEMERRORS_SAVE) |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| else { |
| self->dict = (PyObject *) memerrors_freelist; |
| memerrors_freelist = self; |
| memerrors_numfree++; |
| } |
| } |
| |
| static void |
| preallocate_memerrors(void) |
| { |
| /* We create enough MemoryErrors and then decref them, which will fill |
| up the freelist. */ |
| int i; |
| PyObject *errors[MEMERRORS_SAVE]; |
| for (i = 0; i < MEMERRORS_SAVE; i++) { |
| errors[i] = MemoryError_new((PyTypeObject *) PyExc_MemoryError, |
| NULL, NULL); |
| if (!errors[i]) |
| Py_FatalError("Could not preallocate MemoryError object"); |
| } |
| for (i = 0; i < MEMERRORS_SAVE; i++) { |
| Py_DECREF(errors[i]); |
| } |
| } |
| |
| static void |
| free_preallocated_memerrors(void) |
| { |
| while (memerrors_freelist != NULL) { |
| PyObject *self = (PyObject *) memerrors_freelist; |
| memerrors_freelist = (PyBaseExceptionObject *) memerrors_freelist->dict; |
| Py_TYPE(self)->tp_free((PyObject *)self); |
| } |
| } |
| |
| |
| static PyTypeObject _PyExc_MemoryError = { |
| PyVarObject_HEAD_INIT(NULL, 0) |
| "MemoryError", |
| sizeof(PyBaseExceptionObject), |
| 0, (destructor)MemoryError_dealloc, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, |
| Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_GC, |
| PyDoc_STR("Out of memory."), (traverseproc)BaseException_traverse, |
| (inquiry)BaseException_clear, 0, 0, 0, 0, 0, 0, 0, &_PyExc_Exception, |
| 0, 0, 0, offsetof(PyBaseExceptionObject, dict), |
| (initproc)BaseException_init, 0, MemoryError_new |
| }; |
| PyObject *PyExc_MemoryError = (PyObject *) &_PyExc_MemoryError; |
| |
| |
| /* |
| * BufferError extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, BufferError, "Buffer error."); |
| |
| |
| /* Warning category docstrings */ |
| |
| /* |
| * Warning extends Exception |
| */ |
| SimpleExtendsException(PyExc_Exception, Warning, |
| "Base class for warning categories."); |
| |
| |
| /* |
| * UserWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, UserWarning, |
| "Base class for warnings generated by user code."); |
| |
| |
| /* |
| * DeprecationWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, DeprecationWarning, |
| "Base class for warnings about deprecated features."); |
| |
| |
| /* |
| * PendingDeprecationWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, PendingDeprecationWarning, |
| "Base class for warnings about features which will be deprecated\n" |
| "in the future."); |
| |
| |
| /* |
| * SyntaxWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, SyntaxWarning, |
| "Base class for warnings about dubious syntax."); |
| |
| |
| /* |
| * RuntimeWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, RuntimeWarning, |
| "Base class for warnings about dubious runtime behavior."); |
| |
| |
| /* |
| * FutureWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, FutureWarning, |
| "Base class for warnings about constructs that will change semantically\n" |
| "in the future."); |
| |
| |
| /* |
| * ImportWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, ImportWarning, |
| "Base class for warnings about probable mistakes in module imports"); |
| |
| |
| /* |
| * UnicodeWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, UnicodeWarning, |
| "Base class for warnings about Unicode related problems, mostly\n" |
| "related to conversion problems."); |
| |
| |
| /* |
| * BytesWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, BytesWarning, |
| "Base class for warnings about bytes and buffer related problems, mostly\n" |
| "related to conversion from str or comparing to str."); |
| |
| |
| /* |
| * ResourceWarning extends Warning |
| */ |
| SimpleExtendsException(PyExc_Warning, ResourceWarning, |
| "Base class for warnings about resource usage."); |
| |
| |
| |
| /* Pre-computed RuntimeError instance for when recursion depth is reached. |
| Meant to be used when normalizing the exception for exceeding the recursion |
| depth will cause its own infinite recursion. |
| */ |
| PyObject *PyExc_RecursionErrorInst = NULL; |
| |
| #define PRE_INIT(TYPE) \ |
| if (!(_PyExc_ ## TYPE.tp_flags & Py_TPFLAGS_READY)) { \ |
| if (PyType_Ready(&_PyExc_ ## TYPE) < 0) \ |
| Py_FatalError("exceptions bootstrapping error."); \ |
| Py_INCREF(PyExc_ ## TYPE); \ |
| } |
| |
| #define POST_INIT(TYPE) \ |
| if (PyDict_SetItemString(bdict, # TYPE, PyExc_ ## TYPE)) \ |
| Py_FatalError("Module dictionary insertion problem."); |
| |
| #define INIT_ALIAS(NAME, TYPE) Py_INCREF(PyExc_ ## TYPE); \ |
| Py_XDECREF(PyExc_ ## NAME); \ |
| PyExc_ ## NAME = PyExc_ ## TYPE; \ |
| if (PyDict_SetItemString(bdict, # NAME, PyExc_ ## NAME)) \ |
| Py_FatalError("Module dictionary insertion problem."); |
| |
| #define ADD_ERRNO(TYPE, CODE) { \ |
| PyObject *_code = PyLong_FromLong(CODE); \ |
| assert(_PyObject_RealIsSubclass(PyExc_ ## TYPE, PyExc_OSError)); \ |
| if (!_code || PyDict_SetItem(errnomap, _code, PyExc_ ## TYPE)) \ |
| Py_FatalError("errmap insertion problem."); \ |
| Py_DECREF(_code); \ |
| } |
| |
| #ifdef MS_WINDOWS |
| #include <Winsock2.h> |
| /* The following constants were added to errno.h in VS2010 but have |
| preferred WSA equivalents. */ |
| #undef EADDRINUSE |
| #undef EADDRNOTAVAIL |
| #undef EAFNOSUPPORT |
| #undef EALREADY |
| #undef ECONNABORTED |
| #undef ECONNREFUSED |
| #undef ECONNRESET |
| #undef EDESTADDRREQ |
| #undef EHOSTUNREACH |
| #undef EINPROGRESS |
| #undef EISCONN |
| #undef ELOOP |
| #undef EMSGSIZE |
| #undef ENETDOWN |
| #undef ENETRESET |
| #undef ENETUNREACH |
| #undef ENOBUFS |
| #undef ENOPROTOOPT |
| #undef ENOTCONN |
| #undef ENOTSOCK |
| #undef EOPNOTSUPP |
| #undef EPROTONOSUPPORT |
| #undef EPROTOTYPE |
| #undef ETIMEDOUT |
| #undef EWOULDBLOCK |
| |
| #if defined(WSAEALREADY) && !defined(EALREADY) |
| #define EALREADY WSAEALREADY |
| #endif |
| #if defined(WSAECONNABORTED) && !defined(ECONNABORTED) |
| #define ECONNABORTED WSAECONNABORTED |
| #endif |
| #if defined(WSAECONNREFUSED) && !defined(ECONNREFUSED) |
| #define ECONNREFUSED WSAECONNREFUSED |
| #endif |
| #if defined(WSAECONNRESET) && !defined(ECONNRESET) |
| #define ECONNRESET WSAECONNRESET |
| #endif |
| #if defined(WSAEINPROGRESS) && !defined(EINPROGRESS) |
| #define EINPROGRESS WSAEINPROGRESS |
| #endif |
| #if defined(WSAESHUTDOWN) && !defined(ESHUTDOWN) |
| #define ESHUTDOWN WSAESHUTDOWN |
| #endif |
| #if defined(WSAETIMEDOUT) && !defined(ETIMEDOUT) |
| #define ETIMEDOUT WSAETIMEDOUT |
| #endif |
| #if defined(WSAEWOULDBLOCK) && !defined(EWOULDBLOCK) |
| #define EWOULDBLOCK WSAEWOULDBLOCK |
| #endif |
| #endif /* MS_WINDOWS */ |
| |
| void |
| _PyExc_Init(PyObject *bltinmod) |
| { |
| PyObject *bdict; |
| |
| PRE_INIT(BaseException) |
| PRE_INIT(Exception) |
| PRE_INIT(TypeError) |
| PRE_INIT(StopIteration) |
| PRE_INIT(GeneratorExit) |
| PRE_INIT(SystemExit) |
| PRE_INIT(KeyboardInterrupt) |
| PRE_INIT(ImportError) |
| PRE_INIT(OSError) |
| PRE_INIT(EOFError) |
| PRE_INIT(RuntimeError) |
| PRE_INIT(NotImplementedError) |
| PRE_INIT(NameError) |
| PRE_INIT(UnboundLocalError) |
| PRE_INIT(AttributeError) |
| PRE_INIT(SyntaxError) |
| PRE_INIT(IndentationError) |
| PRE_INIT(TabError) |
| PRE_INIT(LookupError) |
| PRE_INIT(IndexError) |
| PRE_INIT(KeyError) |
| PRE_INIT(ValueError) |
| PRE_INIT(UnicodeError) |
| PRE_INIT(UnicodeEncodeError) |
| PRE_INIT(UnicodeDecodeError) |
| PRE_INIT(UnicodeTranslateError) |
| PRE_INIT(AssertionError) |
| PRE_INIT(ArithmeticError) |
| PRE_INIT(FloatingPointError) |
| PRE_INIT(OverflowError) |
| PRE_INIT(ZeroDivisionError) |
| PRE_INIT(SystemError) |
| PRE_INIT(ReferenceError) |
| PRE_INIT(BufferError) |
| PRE_INIT(MemoryError) |
| PRE_INIT(BufferError) |
| PRE_INIT(Warning) |
| PRE_INIT(UserWarning) |
| PRE_INIT(DeprecationWarning) |
| PRE_INIT(PendingDeprecationWarning) |
| PRE_INIT(SyntaxWarning) |
| PRE_INIT(RuntimeWarning) |
| PRE_INIT(FutureWarning) |
| PRE_INIT(ImportWarning) |
| PRE_INIT(UnicodeWarning) |
| PRE_INIT(BytesWarning) |
| PRE_INIT(ResourceWarning) |
| |
| /* OSError subclasses */ |
| PRE_INIT(ConnectionError); |
| |
| PRE_INIT(BlockingIOError); |
| PRE_INIT(BrokenPipeError); |
| PRE_INIT(ChildProcessError); |
| PRE_INIT(ConnectionAbortedError); |
| PRE_INIT(ConnectionRefusedError); |
| PRE_INIT(ConnectionResetError); |
| PRE_INIT(FileExistsError); |
| PRE_INIT(FileNotFoundError); |
| PRE_INIT(IsADirectoryError); |
| PRE_INIT(NotADirectoryError); |
| PRE_INIT(InterruptedError); |
| PRE_INIT(PermissionError); |
| PRE_INIT(ProcessLookupError); |
| PRE_INIT(TimeoutError); |
| |
| bdict = PyModule_GetDict(bltinmod); |
| if (bdict == NULL) |
| Py_FatalError("exceptions bootstrapping error."); |
| |
| POST_INIT(BaseException) |
| POST_INIT(Exception) |
| POST_INIT(TypeError) |
| POST_INIT(StopIteration) |
| POST_INIT(GeneratorExit) |
| POST_INIT(SystemExit) |
| POST_INIT(KeyboardInterrupt) |
| POST_INIT(ImportError) |
| POST_INIT(OSError) |
| INIT_ALIAS(EnvironmentError, OSError) |
| INIT_ALIAS(IOError, OSError) |
| #ifdef MS_WINDOWS |
| INIT_ALIAS(WindowsError, OSError) |
| #endif |
| #ifdef __VMS |
| INIT_ALIAS(VMSError, OSError) |
| #endif |
| POST_INIT(EOFError) |
| POST_INIT(RuntimeError) |
| POST_INIT(NotImplementedError) |
| POST_INIT(NameError) |
| POST_INIT(UnboundLocalError) |
| POST_INIT(AttributeError) |
| POST_INIT(SyntaxError) |
| POST_INIT(IndentationError) |
| POST_INIT(TabError) |
| POST_INIT(LookupError) |
| POST_INIT(IndexError) |
| POST_INIT(KeyError) |
| POST_INIT(ValueError) |
| POST_INIT(UnicodeError) |
| POST_INIT(UnicodeEncodeError) |
| POST_INIT(UnicodeDecodeError) |
| POST_INIT(UnicodeTranslateError) |
| POST_INIT(AssertionError) |
| POST_INIT(ArithmeticError) |
| POST_INIT(FloatingPointError) |
| POST_INIT(OverflowError) |
| POST_INIT(ZeroDivisionError) |
| POST_INIT(SystemError) |
| POST_INIT(ReferenceError) |
| POST_INIT(BufferError) |
| POST_INIT(MemoryError) |
| POST_INIT(BufferError) |
| POST_INIT(Warning) |
| POST_INIT(UserWarning) |
| POST_INIT(DeprecationWarning) |
| POST_INIT(PendingDeprecationWarning) |
| POST_INIT(SyntaxWarning) |
| POST_INIT(RuntimeWarning) |
| POST_INIT(FutureWarning) |
| POST_INIT(ImportWarning) |
| POST_INIT(UnicodeWarning) |
| POST_INIT(BytesWarning) |
| POST_INIT(ResourceWarning) |
| |
| if (!errnomap) { |
| errnomap = PyDict_New(); |
| if (!errnomap) |
| Py_FatalError("Cannot allocate map from errnos to OSError subclasses"); |
| } |
| |
| /* OSError subclasses */ |
| POST_INIT(ConnectionError); |
| |
| POST_INIT(BlockingIOError); |
| ADD_ERRNO(BlockingIOError, EAGAIN); |
| ADD_ERRNO(BlockingIOError, EALREADY); |
| ADD_ERRNO(BlockingIOError, EINPROGRESS); |
| ADD_ERRNO(BlockingIOError, EWOULDBLOCK); |
| POST_INIT(BrokenPipeError); |
| ADD_ERRNO(BrokenPipeError, EPIPE); |
| ADD_ERRNO(BrokenPipeError, ESHUTDOWN); |
| POST_INIT(ChildProcessError); |
| ADD_ERRNO(ChildProcessError, ECHILD); |
| POST_INIT(ConnectionAbortedError); |
| ADD_ERRNO(ConnectionAbortedError, ECONNABORTED); |
| POST_INIT(ConnectionRefusedError); |
| ADD_ERRNO(ConnectionRefusedError, ECONNREFUSED); |
| POST_INIT(ConnectionResetError); |
| ADD_ERRNO(ConnectionResetError, ECONNRESET); |
| POST_INIT(FileExistsError); |
| ADD_ERRNO(FileExistsError, EEXIST); |
| POST_INIT(FileNotFoundError); |
| ADD_ERRNO(FileNotFoundError, ENOENT); |
| POST_INIT(IsADirectoryError); |
| ADD_ERRNO(IsADirectoryError, EISDIR); |
| POST_INIT(NotADirectoryError); |
| ADD_ERRNO(NotADirectoryError, ENOTDIR); |
| POST_INIT(InterruptedError); |
| ADD_ERRNO(InterruptedError, EINTR); |
| POST_INIT(PermissionError); |
| ADD_ERRNO(PermissionError, EACCES); |
| ADD_ERRNO(PermissionError, EPERM); |
| POST_INIT(ProcessLookupError); |
| ADD_ERRNO(ProcessLookupError, ESRCH); |
| POST_INIT(TimeoutError); |
| ADD_ERRNO(TimeoutError, ETIMEDOUT); |
| |
| preallocate_memerrors(); |
| |
| if (!PyExc_RecursionErrorInst) { |
| PyExc_RecursionErrorInst = BaseException_new(&_PyExc_RuntimeError, NULL, NULL); |
| if (!PyExc_RecursionErrorInst) |
| Py_FatalError("Cannot pre-allocate RuntimeError instance for " |
| "recursion errors"); |
| else { |
| PyBaseExceptionObject *err_inst = |
| (PyBaseExceptionObject *)PyExc_RecursionErrorInst; |
| PyObject *args_tuple; |
| PyObject *exc_message; |
| exc_message = PyUnicode_FromString("maximum recursion depth exceeded"); |
| if (!exc_message) |
| Py_FatalError("cannot allocate argument for RuntimeError " |
| "pre-allocation"); |
| args_tuple = PyTuple_Pack(1, exc_message); |
| if (!args_tuple) |
| Py_FatalError("cannot allocate tuple for RuntimeError " |
| "pre-allocation"); |
| Py_DECREF(exc_message); |
| if (BaseException_init(err_inst, args_tuple, NULL)) |
| Py_FatalError("init of pre-allocated RuntimeError failed"); |
| Py_DECREF(args_tuple); |
| } |
| } |
| } |
| |
| void |
| _PyExc_Fini(void) |
| { |
| Py_CLEAR(PyExc_RecursionErrorInst); |
| free_preallocated_memerrors(); |
| Py_CLEAR(errnomap); |
| } |