| /* This module provides the suite of standard class-based exceptions for |
| * Python's builtin module. This is a complete C implementation of what, |
| * in Python 1.5.2, was contained in the exceptions.py module. The problem |
| * there was that if exceptions.py could not be imported for some reason, |
| * the entire interpreter would abort. |
| * |
| * By moving the exceptions into C and statically linking, we can guarantee |
| * that the standard exceptions will always be available. |
| * |
| * |
| * written by Fredrik Lundh |
| * modifications, additions, cleanups, and proofreading by Barry Warsaw |
| * |
| * Copyright (c) 1998-2000 by Secret Labs AB. All rights reserved. |
| */ |
| |
| #define PY_SSIZE_T_CLEAN |
| #include "Python.h" |
| #include "osdefs.h" |
| |
| /* Caution: MS Visual C++ 6 errors if a single string literal exceeds |
| * 2Kb. So the module docstring has been broken roughly in half, using |
| * compile-time literal concatenation. |
| */ |
| |
| /* NOTE: If the exception class hierarchy changes, don't forget to update |
| * Doc/lib/libexcs.tex! |
| */ |
| |
| PyDoc_STRVAR(module__doc__, |
| "Python's standard exception class hierarchy.\n\ |
| \n\ |
| Exceptions found here are defined both in the exceptions module and the \n\ |
| built-in namespace. It is recommended that user-defined exceptions inherit \n\ |
| from Exception. See the documentation for the exception inheritance hierarchy.\n\ |
| " |
| |
| /* keep string pieces "small" */ |
| /* XXX(bcannon): exception hierarchy in Lib/test/exception_hierarchy.txt */ |
| ); |
| |
| |
| /* Helper function for populating a dictionary with method wrappers. */ |
| static int |
| populate_methods(PyObject *klass, PyMethodDef *methods) |
| { |
| PyObject *module; |
| int status = -1; |
| |
| if (!methods) |
| return 0; |
| |
| module = PyString_FromString("exceptions"); |
| if (!module) |
| return 0; |
| while (methods->ml_name) { |
| /* get a wrapper for the built-in function */ |
| PyObject *func = PyCFunction_NewEx(methods, NULL, module); |
| PyObject *meth; |
| |
| if (!func) |
| goto status; |
| |
| /* turn the function into an unbound method */ |
| if (!(meth = PyMethod_New(func, NULL, klass))) { |
| Py_DECREF(func); |
| goto status; |
| } |
| |
| /* add method to dictionary */ |
| status = PyObject_SetAttrString(klass, methods->ml_name, meth); |
| Py_DECREF(meth); |
| Py_DECREF(func); |
| |
| /* stop now if an error occurred, otherwise do the next method */ |
| if (status) |
| goto status; |
| |
| methods++; |
| } |
| status = 0; |
| status: |
| Py_DECREF(module); |
| return status; |
| } |
| |
| |
| |
| /* This function is used to create all subsequent exception classes. */ |
| static int |
| make_class(PyObject **klass, PyObject *base, |
| char *name, PyMethodDef *methods, |
| char *docstr) |
| { |
| PyObject *dict = PyDict_New(); |
| PyObject *str = NULL; |
| int status = -1; |
| |
| if (!dict) |
| return -1; |
| |
| /* If an error occurs from here on, goto finally instead of explicitly |
| * returning NULL. |
| */ |
| |
| if (docstr) { |
| if (!(str = PyString_FromString(docstr))) |
| goto finally; |
| if (PyDict_SetItemString(dict, "__doc__", str)) |
| goto finally; |
| } |
| |
| if (!(*klass = PyErr_NewException(name, base, dict))) |
| goto finally; |
| |
| if (populate_methods(*klass, methods)) { |
| Py_DECREF(*klass); |
| *klass = NULL; |
| goto finally; |
| } |
| |
| status = 0; |
| |
| finally: |
| Py_XDECREF(dict); |
| Py_XDECREF(str); |
| return status; |
| } |
| |
| |
| /* Use this for *args signatures, otherwise just use PyArg_ParseTuple() */ |
| static PyObject * |
| get_self(PyObject *args) |
| { |
| PyObject *self = PyTuple_GetItem(args, 0); |
| if (!self) { |
| /* Watch out for being called to early in the bootstrapping process */ |
| if (PyExc_TypeError) { |
| PyErr_SetString(PyExc_TypeError, |
| "unbound method must be called with instance as first argument"); |
| } |
| return NULL; |
| } |
| return self; |
| } |
| |
| |
| |
| /* Notes on bootstrapping the exception classes. |
| * |
| * First thing we create is the base class for all exceptions, called |
| * appropriately BaseException. Creation of this class makes no |
| * assumptions about the existence of any other exception class -- except |
| * for TypeError, which can conditionally exist. |
| * |
| * Next, Exception is created since it is the common subclass for the rest of |
| * the needed exceptions for this bootstrapping to work. StandardError is |
| * created (which is quite simple) followed by |
| * TypeError, because the instantiation of other exceptions can potentially |
| * throw a TypeError. Once these exceptions are created, all the others |
| * can be created in any order. See the static exctable below for the |
| * explicit bootstrap order. |
| * |
| * All classes after BaseException can be created using PyErr_NewException(). |
| */ |
| |
| PyDoc_STRVAR(BaseException__doc__, "Common base class for all exceptions"); |
| |
| /* |
| Set args and message attributes. |
| |
| Assumes self and args have already been set properly with set_self, etc. |
| */ |
| static int |
| set_args_and_message(PyObject *self, PyObject *args) |
| { |
| PyObject *message_val; |
| Py_ssize_t args_len = PySequence_Length(args); |
| |
| if (args_len < 0) |
| return 0; |
| |
| /* set args */ |
| if (PyObject_SetAttrString(self, "args", args) < 0) |
| return 0; |
| |
| /* set message */ |
| if (args_len == 1) |
| message_val = PySequence_GetItem(args, 0); |
| else |
| message_val = PyString_FromString(""); |
| if (!message_val) |
| return 0; |
| |
| if (PyObject_SetAttrString(self, "message", message_val) < 0) { |
| Py_DECREF(message_val); |
| return 0; |
| } |
| |
| Py_DECREF(message_val); |
| return 1; |
| } |
| |
| static PyObject * |
| BaseException__init__(PyObject *self, PyObject *args) |
| { |
| if (!(self = get_self(args))) |
| return NULL; |
| |
| /* set args and message attribute */ |
| args = PySequence_GetSlice(args, 1, PySequence_Length(args)); |
| if (!args) |
| return NULL; |
| |
| if (!set_args_and_message(self, args)) { |
| Py_DECREF(args); |
| return NULL; |
| } |
| |
| Py_DECREF(args); |
| Py_RETURN_NONE; |
| } |
| |
| |
| static PyObject * |
| BaseException__str__(PyObject *self, PyObject *args) |
| { |
| PyObject *out; |
| |
| if (!PyArg_ParseTuple(args, "O:__str__", &self)) |
| return NULL; |
| |
| args = PyObject_GetAttrString(self, "args"); |
| if (!args) |
| return NULL; |
| |
| switch (PySequence_Size(args)) { |
| case 0: |
| out = PyString_FromString(""); |
| break; |
| case 1: |
| { |
| PyObject *tmp = PySequence_GetItem(args, 0); |
| if (tmp) { |
| out = PyObject_Str(tmp); |
| Py_DECREF(tmp); |
| } |
| else |
| out = NULL; |
| break; |
| } |
| case -1: |
| PyErr_Clear(); |
| /* Fall through */ |
| default: |
| out = PyObject_Str(args); |
| break; |
| } |
| |
| Py_DECREF(args); |
| return out; |
| } |
| |
| #ifdef Py_USING_UNICODE |
| static PyObject * |
| BaseException__unicode__(PyObject *self, PyObject *args) |
| { |
| Py_ssize_t args_len; |
| |
| if (!PyArg_ParseTuple(args, "O:__unicode__", &self)) |
| return NULL; |
| |
| args = PyObject_GetAttrString(self, "args"); |
| if (!args) |
| return NULL; |
| |
| args_len = PySequence_Size(args); |
| if (args_len < 0) { |
| Py_DECREF(args); |
| return NULL; |
| } |
| |
| if (args_len == 0) { |
| Py_DECREF(args); |
| return PyUnicode_FromUnicode(NULL, 0); |
| } |
| else if (args_len == 1) { |
| PyObject *temp = PySequence_GetItem(args, 0); |
| PyObject *unicode_obj; |
| |
| if (!temp) { |
| Py_DECREF(args); |
| return NULL; |
| } |
| Py_DECREF(args); |
| unicode_obj = PyObject_Unicode(temp); |
| Py_DECREF(temp); |
| return unicode_obj; |
| } |
| else { |
| PyObject *unicode_obj = PyObject_Unicode(args); |
| |
| Py_DECREF(args); |
| return unicode_obj; |
| } |
| } |
| #endif /* Py_USING_UNICODE */ |
| |
| static PyObject * |
| BaseException__repr__(PyObject *self, PyObject *args) |
| { |
| PyObject *args_attr; |
| Py_ssize_t args_len; |
| PyObject *repr_suffix; |
| PyObject *repr; |
| |
| if (!PyArg_ParseTuple(args, "O:__repr__", &self)) |
| return NULL; |
| |
| args_attr = PyObject_GetAttrString(self, "args"); |
| if (!args_attr) |
| return NULL; |
| |
| args_len = PySequence_Length(args_attr); |
| if (args_len < 0) { |
| Py_DECREF(args_attr); |
| return NULL; |
| } |
| |
| if (args_len == 0) { |
| Py_DECREF(args_attr); |
| repr_suffix = PyString_FromString("()"); |
| if (!repr_suffix) |
| return NULL; |
| } |
| else { |
| PyObject *args_repr = PyObject_Repr(args_attr); |
| Py_DECREF(args_attr); |
| if (!args_repr) |
| return NULL; |
| |
| repr_suffix = args_repr; |
| } |
| |
| repr = PyString_FromString(self->ob_type->tp_name); |
| if (!repr) { |
| Py_DECREF(repr_suffix); |
| return NULL; |
| } |
| |
| PyString_ConcatAndDel(&repr, repr_suffix); |
| return repr; |
| } |
| |
| static PyObject * |
| BaseException__getitem__(PyObject *self, PyObject *args) |
| { |
| PyObject *out; |
| PyObject *index; |
| |
| if (!PyArg_ParseTuple(args, "OO:__getitem__", &self, &index)) |
| return NULL; |
| |
| args = PyObject_GetAttrString(self, "args"); |
| if (!args) |
| return NULL; |
| |
| out = PyObject_GetItem(args, index); |
| Py_DECREF(args); |
| return out; |
| } |
| |
| |
| static PyMethodDef |
| BaseException_methods[] = { |
| /* methods for the BaseException class */ |
| {"__getitem__", BaseException__getitem__, METH_VARARGS}, |
| {"__repr__", BaseException__repr__, METH_VARARGS}, |
| {"__str__", BaseException__str__, METH_VARARGS}, |
| #ifdef Py_USING_UNICODE |
| {"__unicode__", BaseException__unicode__, METH_VARARGS}, |
| #endif /* Py_USING_UNICODE */ |
| {"__init__", BaseException__init__, METH_VARARGS}, |
| {NULL, NULL } |
| }; |
| |
| |
| static int |
| make_BaseException(char *modulename) |
| { |
| PyObject *dict = PyDict_New(); |
| PyObject *str = NULL; |
| PyObject *name = NULL; |
| PyObject *emptytuple = NULL; |
| PyObject *argstuple = NULL; |
| int status = -1; |
| |
| if (!dict) |
| return -1; |
| |
| /* If an error occurs from here on, goto finally instead of explicitly |
| * returning NULL. |
| */ |
| |
| if (!(str = PyString_FromString(modulename))) |
| goto finally; |
| if (PyDict_SetItemString(dict, "__module__", str)) |
| goto finally; |
| Py_DECREF(str); |
| |
| if (!(str = PyString_FromString(BaseException__doc__))) |
| goto finally; |
| if (PyDict_SetItemString(dict, "__doc__", str)) |
| goto finally; |
| |
| if (!(name = PyString_FromString("BaseException"))) |
| goto finally; |
| |
| if (!(emptytuple = PyTuple_New(0))) |
| goto finally; |
| |
| if (!(argstuple = PyTuple_Pack(3, name, emptytuple, dict))) |
| goto finally; |
| |
| if (!(PyExc_BaseException = PyType_Type.tp_new(&PyType_Type, argstuple, |
| NULL))) |
| goto finally; |
| |
| /* Now populate the dictionary with the method suite */ |
| if (populate_methods(PyExc_BaseException, BaseException_methods)) |
| /* Don't need to reclaim PyExc_BaseException here because that'll |
| * happen during interpreter shutdown. |
| */ |
| goto finally; |
| |
| status = 0; |
| |
| finally: |
| Py_XDECREF(dict); |
| Py_XDECREF(str); |
| Py_XDECREF(name); |
| Py_XDECREF(emptytuple); |
| Py_XDECREF(argstuple); |
| return status; |
| } |
| |
| |
| |
| PyDoc_STRVAR(Exception__doc__, "Common base class for all non-exit exceptions."); |
| |
| PyDoc_STRVAR(StandardError__doc__, |
| "Base class for all standard Python exceptions that do not represent" |
| "interpreter exiting."); |
| |
| PyDoc_STRVAR(TypeError__doc__, "Inappropriate argument type."); |
| |
| PyDoc_STRVAR(StopIteration__doc__, "Signal the end from iterator.next()."); |
| PyDoc_STRVAR(GeneratorExit__doc__, "Request that a generator exit."); |
| |
| |
| |
| PyDoc_STRVAR(SystemExit__doc__, "Request to exit from the interpreter."); |
| |
| |
| static PyObject * |
| SystemExit__init__(PyObject *self, PyObject *args) |
| { |
| PyObject *code; |
| int status; |
| |
| if (!(self = get_self(args))) |
| return NULL; |
| |
| if (!(args = PySequence_GetSlice(args, 1, PySequence_Size(args)))) |
| return NULL; |
| |
| if (!set_args_and_message(self, args)) { |
| Py_DECREF(args); |
| return NULL; |
| } |
| |
| /* set code attribute */ |
| switch (PySequence_Size(args)) { |
| case 0: |
| Py_INCREF(Py_None); |
| code = Py_None; |
| break; |
| case 1: |
| code = PySequence_GetItem(args, 0); |
| break; |
| case -1: |
| PyErr_Clear(); |
| /* Fall through */ |
| default: |
| Py_INCREF(args); |
| code = args; |
| break; |
| } |
| |
| status = PyObject_SetAttrString(self, "code", code); |
| Py_DECREF(code); |
| Py_DECREF(args); |
| if (status < 0) |
| return NULL; |
| |
| Py_RETURN_NONE; |
| } |
| |
| |
| static PyMethodDef SystemExit_methods[] = { |
| { "__init__", SystemExit__init__, METH_VARARGS}, |
| {NULL, NULL} |
| }; |
| |
| |
| |
| PyDoc_STRVAR(KeyboardInterrupt__doc__, "Program interrupted by user."); |
| |
| PyDoc_STRVAR(ImportError__doc__, |
| "Import can't find module, or can't find name in module."); |
| |
| |
| |
| PyDoc_STRVAR(EnvironmentError__doc__, "Base class for I/O related errors."); |
| |
| |
| static PyObject * |
| EnvironmentError__init__(PyObject *self, PyObject *args) |
| { |
| PyObject *item0 = NULL; |
| PyObject *item1 = NULL; |
| PyObject *item2 = NULL; |
| PyObject *subslice = NULL; |
| PyObject *rtnval = NULL; |
| |
| if (!(self = get_self(args))) |
| return NULL; |
| |
| if (!(args = PySequence_GetSlice(args, 1, PySequence_Size(args)))) |
| return NULL; |
| |
| if (!set_args_and_message(self, args)) { |
| Py_DECREF(args); |
| return NULL; |
| } |
| |
| if (PyObject_SetAttrString(self, "errno", Py_None) || |
| PyObject_SetAttrString(self, "strerror", Py_None) || |
| PyObject_SetAttrString(self, "filename", Py_None)) |
| { |
| goto finally; |
| } |
| |
| switch (PySequence_Size(args)) { |
| case 3: |
| /* 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 IOError, (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. |
| */ |
| item0 = PySequence_GetItem(args, 0); |
| item1 = PySequence_GetItem(args, 1); |
| item2 = PySequence_GetItem(args, 2); |
| if (!item0 || !item1 || !item2) |
| goto finally; |
| |
| if (PyObject_SetAttrString(self, "errno", item0) || |
| PyObject_SetAttrString(self, "strerror", item1) || |
| PyObject_SetAttrString(self, "filename", item2)) |
| { |
| goto finally; |
| } |
| |
| subslice = PySequence_GetSlice(args, 0, 2); |
| if (!subslice || PyObject_SetAttrString(self, "args", subslice)) |
| goto finally; |
| break; |
| |
| case 2: |
| /* Used when PyErr_SetFromErrno() is called and no filename |
| * argument is given. |
| */ |
| item0 = PySequence_GetItem(args, 0); |
| item1 = PySequence_GetItem(args, 1); |
| if (!item0 || !item1) |
| goto finally; |
| |
| if (PyObject_SetAttrString(self, "errno", item0) || |
| PyObject_SetAttrString(self, "strerror", item1)) |
| { |
| goto finally; |
| } |
| break; |
| |
| case -1: |
| PyErr_Clear(); |
| break; |
| } |
| |
| Py_INCREF(Py_None); |
| rtnval = Py_None; |
| |
| finally: |
| Py_DECREF(args); |
| Py_XDECREF(item0); |
| Py_XDECREF(item1); |
| Py_XDECREF(item2); |
| Py_XDECREF(subslice); |
| return rtnval; |
| } |
| |
| |
| static PyObject * |
| EnvironmentError__str__(PyObject *self, PyObject *args) |
| { |
| PyObject *originalself = self; |
| PyObject *filename; |
| PyObject *serrno; |
| PyObject *strerror; |
| PyObject *rtnval = NULL; |
| |
| if (!PyArg_ParseTuple(args, "O:__str__", &self)) |
| return NULL; |
| |
| filename = PyObject_GetAttrString(self, "filename"); |
| serrno = PyObject_GetAttrString(self, "errno"); |
| strerror = PyObject_GetAttrString(self, "strerror"); |
| if (!filename || !serrno || !strerror) |
| goto finally; |
| |
| if (filename != Py_None) { |
| PyObject *fmt = PyString_FromString("[Errno %s] %s: %s"); |
| PyObject *repr = PyObject_Repr(filename); |
| PyObject *tuple = PyTuple_New(3); |
| |
| if (!fmt || !repr || !tuple) { |
| Py_XDECREF(fmt); |
| Py_XDECREF(repr); |
| Py_XDECREF(tuple); |
| goto finally; |
| } |
| |
| PyTuple_SET_ITEM(tuple, 0, serrno); |
| PyTuple_SET_ITEM(tuple, 1, strerror); |
| PyTuple_SET_ITEM(tuple, 2, repr); |
| |
| rtnval = PyString_Format(fmt, tuple); |
| |
| Py_DECREF(fmt); |
| Py_DECREF(tuple); |
| /* already freed because tuple owned only reference */ |
| serrno = NULL; |
| strerror = NULL; |
| } |
| else if (PyObject_IsTrue(serrno) && PyObject_IsTrue(strerror)) { |
| PyObject *fmt = PyString_FromString("[Errno %s] %s"); |
| PyObject *tuple = PyTuple_New(2); |
| |
| if (!fmt || !tuple) { |
| Py_XDECREF(fmt); |
| Py_XDECREF(tuple); |
| goto finally; |
| } |
| |
| PyTuple_SET_ITEM(tuple, 0, serrno); |
| PyTuple_SET_ITEM(tuple, 1, strerror); |
| |
| rtnval = PyString_Format(fmt, tuple); |
| |
| Py_DECREF(fmt); |
| Py_DECREF(tuple); |
| /* already freed because tuple owned only reference */ |
| serrno = NULL; |
| strerror = NULL; |
| } |
| else |
| /* The original Python code said: |
| * |
| * return StandardError.__str__(self) |
| * |
| * but there is no StandardError__str__() function; we happen to |
| * know that's just a pass through to BaseException__str__(). |
| */ |
| rtnval = BaseException__str__(originalself, args); |
| |
| finally: |
| Py_XDECREF(filename); |
| Py_XDECREF(serrno); |
| Py_XDECREF(strerror); |
| return rtnval; |
| } |
| |
| |
| static |
| PyMethodDef EnvironmentError_methods[] = { |
| {"__init__", EnvironmentError__init__, METH_VARARGS}, |
| {"__str__", EnvironmentError__str__, METH_VARARGS}, |
| {NULL, NULL} |
| }; |
| |
| PyDoc_STRVAR(IOError__doc__, "I/O operation failed."); |
| |
| PyDoc_STRVAR(OSError__doc__, "OS system call failed."); |
| |
| #ifdef MS_WINDOWS |
| #include "errmap.h" |
| |
| PyDoc_STRVAR(WindowsError__doc__, "MS-Windows OS system call failed."); |
| |
| static PyObject * |
| WindowsError__init__(PyObject *self, PyObject *args) |
| { |
| PyObject *o_errcode, *result; |
| long errcode, posix_errno; |
| result = EnvironmentError__init__(self, args); |
| if (!result) |
| return NULL; |
| self = get_self(args); |
| if (!self) |
| goto failed; |
| /* Set errno to the POSIX errno, and winerror to the Win32 |
| error code. */ |
| o_errcode = PyObject_GetAttrString(self, "errno"); |
| if (!o_errcode) |
| goto failed; |
| errcode = PyInt_AsLong(o_errcode); |
| if (!errcode == -1 && PyErr_Occurred()) |
| goto failed; |
| posix_errno = winerror_to_errno(errcode); |
| if (PyObject_SetAttrString(self, "winerror", o_errcode) < 0) |
| goto failed; |
| Py_DECREF(o_errcode); |
| o_errcode = PyInt_FromLong(posix_errno); |
| if (!o_errcode) |
| goto failed; |
| if (PyObject_SetAttrString(self, "errno", o_errcode) < 0) |
| goto failed; |
| Py_DECREF(o_errcode); |
| return result; |
| failed: |
| /* Could not set errno. */ |
| Py_XDECREF(o_errcode); |
| Py_DECREF(self); |
| Py_DECREF(result); |
| return NULL; |
| } |
| |
| static PyObject * |
| WindowsError__str__(PyObject *self, PyObject *args) |
| { |
| PyObject *originalself = self; |
| PyObject *filename; |
| PyObject *serrno; |
| PyObject *strerror; |
| PyObject *rtnval = NULL; |
| |
| if (!PyArg_ParseTuple(args, "O:__str__", &self)) |
| return NULL; |
| |
| filename = PyObject_GetAttrString(self, "filename"); |
| serrno = PyObject_GetAttrString(self, "winerror"); |
| strerror = PyObject_GetAttrString(self, "strerror"); |
| if (!filename || !serrno || !strerror) |
| goto finally; |
| |
| if (filename != Py_None) { |
| PyObject *fmt = PyString_FromString("[Error %s] %s: %s"); |
| PyObject *repr = PyObject_Repr(filename); |
| PyObject *tuple = PyTuple_New(3); |
| |
| if (!fmt || !repr || !tuple) { |
| Py_XDECREF(fmt); |
| Py_XDECREF(repr); |
| Py_XDECREF(tuple); |
| goto finally; |
| } |
| |
| PyTuple_SET_ITEM(tuple, 0, serrno); |
| PyTuple_SET_ITEM(tuple, 1, strerror); |
| PyTuple_SET_ITEM(tuple, 2, repr); |
| |
| rtnval = PyString_Format(fmt, tuple); |
| |
| Py_DECREF(fmt); |
| Py_DECREF(tuple); |
| /* already freed because tuple owned only reference */ |
| serrno = NULL; |
| strerror = NULL; |
| } |
| else if (PyObject_IsTrue(serrno) && PyObject_IsTrue(strerror)) { |
| PyObject *fmt = PyString_FromString("[Error %s] %s"); |
| PyObject *tuple = PyTuple_New(2); |
| |
| if (!fmt || !tuple) { |
| Py_XDECREF(fmt); |
| Py_XDECREF(tuple); |
| goto finally; |
| } |
| |
| PyTuple_SET_ITEM(tuple, 0, serrno); |
| PyTuple_SET_ITEM(tuple, 1, strerror); |
| |
| rtnval = PyString_Format(fmt, tuple); |
| |
| Py_DECREF(fmt); |
| Py_DECREF(tuple); |
| /* already freed because tuple owned only reference */ |
| serrno = NULL; |
| strerror = NULL; |
| } |
| else |
| rtnval = EnvironmentError__str__(originalself, args); |
| |
| finally: |
| Py_XDECREF(filename); |
| Py_XDECREF(serrno); |
| Py_XDECREF(strerror); |
| return rtnval; |
| } |
| |
| static |
| PyMethodDef WindowsError_methods[] = { |
| {"__init__", WindowsError__init__, METH_VARARGS}, |
| {"__str__", WindowsError__str__, METH_VARARGS}, |
| {NULL, NULL} |
| }; |
| #endif /* MS_WINDOWS */ |
| |
| #ifdef __VMS |
| static char |
| VMSError__doc__[] = "OpenVMS OS system call failed."; |
| #endif |
| |
| PyDoc_STRVAR(EOFError__doc__, "Read beyond end of file."); |
| |
| PyDoc_STRVAR(RuntimeError__doc__, "Unspecified run-time error."); |
| |
| PyDoc_STRVAR(NotImplementedError__doc__, |
| "Method or function hasn't been implemented yet."); |
| |
| PyDoc_STRVAR(NameError__doc__, "Name not found globally."); |
| |
| PyDoc_STRVAR(UnboundLocalError__doc__, |
| "Local name referenced but not bound to a value."); |
| |
| PyDoc_STRVAR(AttributeError__doc__, "Attribute not found."); |
| |
| |
| |
| PyDoc_STRVAR(SyntaxError__doc__, "Invalid syntax."); |
| |
| |
| static int |
| SyntaxError__classinit__(PyObject *klass) |
| { |
| int retval = 0; |
| PyObject *emptystring = PyString_FromString(""); |
| |
| /* Additional class-creation time initializations */ |
| if (!emptystring || |
| PyObject_SetAttrString(klass, "msg", emptystring) || |
| PyObject_SetAttrString(klass, "filename", Py_None) || |
| PyObject_SetAttrString(klass, "lineno", Py_None) || |
| PyObject_SetAttrString(klass, "offset", Py_None) || |
| PyObject_SetAttrString(klass, "text", Py_None) || |
| PyObject_SetAttrString(klass, "print_file_and_line", Py_None)) |
| { |
| retval = -1; |
| } |
| Py_XDECREF(emptystring); |
| return retval; |
| } |
| |
| |
| static PyObject * |
| SyntaxError__init__(PyObject *self, PyObject *args) |
| { |
| PyObject *rtnval = NULL; |
| Py_ssize_t lenargs; |
| |
| if (!(self = get_self(args))) |
| return NULL; |
| |
| if (!(args = PySequence_GetSlice(args, 1, PySequence_Size(args)))) |
| return NULL; |
| |
| if (!set_args_and_message(self, args)) { |
| Py_DECREF(args); |
| return NULL; |
| } |
| |
| lenargs = PySequence_Size(args); |
| if (lenargs >= 1) { |
| PyObject *item0 = PySequence_GetItem(args, 0); |
| int status; |
| |
| if (!item0) |
| goto finally; |
| status = PyObject_SetAttrString(self, "msg", item0); |
| Py_DECREF(item0); |
| if (status) |
| goto finally; |
| } |
| if (lenargs == 2) { |
| PyObject *info = PySequence_GetItem(args, 1); |
| PyObject *filename = NULL, *lineno = NULL; |
| PyObject *offset = NULL, *text = NULL; |
| int status = 1; |
| |
| if (!info) |
| goto finally; |
| |
| filename = PySequence_GetItem(info, 0); |
| if (filename != NULL) { |
| lineno = PySequence_GetItem(info, 1); |
| if (lineno != NULL) { |
| offset = PySequence_GetItem(info, 2); |
| if (offset != NULL) { |
| text = PySequence_GetItem(info, 3); |
| if (text != NULL) { |
| status = |
| PyObject_SetAttrString(self, "filename", filename) |
| || PyObject_SetAttrString(self, "lineno", lineno) |
| || PyObject_SetAttrString(self, "offset", offset) |
| || PyObject_SetAttrString(self, "text", text); |
| Py_DECREF(text); |
| } |
| Py_DECREF(offset); |
| } |
| Py_DECREF(lineno); |
| } |
| Py_DECREF(filename); |
| } |
| Py_DECREF(info); |
| |
| if (status) |
| goto finally; |
| } |
| Py_INCREF(Py_None); |
| rtnval = Py_None; |
| |
| finally: |
| Py_DECREF(args); |
| return rtnval; |
| } |
| |
| |
| /* 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 char * |
| my_basename(char *name) |
| { |
| char *cp = name; |
| char *result = name; |
| |
| if (name == NULL) |
| return "???"; |
| while (*cp != '\0') { |
| if (*cp == SEP) |
| result = cp + 1; |
| ++cp; |
| } |
| return result; |
| } |
| |
| |
| static PyObject * |
| SyntaxError__str__(PyObject *self, PyObject *args) |
| { |
| PyObject *msg; |
| PyObject *str; |
| PyObject *filename, *lineno, *result; |
| |
| if (!PyArg_ParseTuple(args, "O:__str__", &self)) |
| return NULL; |
| |
| if (!(msg = PyObject_GetAttrString(self, "msg"))) |
| return NULL; |
| |
| str = PyObject_Str(msg); |
| Py_DECREF(msg); |
| result = str; |
| |
| /* XXX -- do all the additional formatting with filename and |
| lineno here */ |
| |
| if (str != NULL && PyString_Check(str)) { |
| int have_filename = 0; |
| int have_lineno = 0; |
| char *buffer = NULL; |
| |
| if ((filename = PyObject_GetAttrString(self, "filename")) != NULL) |
| have_filename = PyString_Check(filename); |
| else |
| PyErr_Clear(); |
| |
| if ((lineno = PyObject_GetAttrString(self, "lineno")) != NULL) |
| have_lineno = PyInt_Check(lineno); |
| else |
| PyErr_Clear(); |
| |
| if (have_filename || have_lineno) { |
| Py_ssize_t bufsize = PyString_GET_SIZE(str) + 64; |
| if (have_filename) |
| bufsize += PyString_GET_SIZE(filename); |
| |
| buffer = (char *)PyMem_MALLOC(bufsize); |
| if (buffer != NULL) { |
| if (have_filename && have_lineno) |
| PyOS_snprintf(buffer, bufsize, "%s (%s, line %ld)", |
| PyString_AS_STRING(str), |
| my_basename(PyString_AS_STRING(filename)), |
| PyInt_AsLong(lineno)); |
| else if (have_filename) |
| PyOS_snprintf(buffer, bufsize, "%s (%s)", |
| PyString_AS_STRING(str), |
| my_basename(PyString_AS_STRING(filename))); |
| else if (have_lineno) |
| PyOS_snprintf(buffer, bufsize, "%s (line %ld)", |
| PyString_AS_STRING(str), |
| PyInt_AsLong(lineno)); |
| |
| result = PyString_FromString(buffer); |
| PyMem_FREE(buffer); |
| |
| if (result == NULL) |
| result = str; |
| else |
| Py_DECREF(str); |
| } |
| } |
| Py_XDECREF(filename); |
| Py_XDECREF(lineno); |
| } |
| return result; |
| } |
| |
| |
| static PyMethodDef SyntaxError_methods[] = { |
| {"__init__", SyntaxError__init__, METH_VARARGS}, |
| {"__str__", SyntaxError__str__, METH_VARARGS}, |
| {NULL, NULL} |
| }; |
| |
| |
| static PyObject * |
| KeyError__str__(PyObject *self, PyObject *args) |
| { |
| PyObject *argsattr; |
| PyObject *result; |
| |
| if (!PyArg_ParseTuple(args, "O:__str__", &self)) |
| return NULL; |
| |
| argsattr = PyObject_GetAttrString(self, "args"); |
| if (!argsattr) |
| return NULL; |
| |
| /* 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_Check(argsattr) && PyTuple_GET_SIZE(argsattr) == 1) { |
| PyObject *key = PyTuple_GET_ITEM(argsattr, 0); |
| result = PyObject_Repr(key); |
| } |
| else |
| result = BaseException__str__(self, args); |
| |
| Py_DECREF(argsattr); |
| return result; |
| } |
| |
| static PyMethodDef KeyError_methods[] = { |
| {"__str__", KeyError__str__, METH_VARARGS}, |
| {NULL, NULL} |
| }; |
| |
| |
| #ifdef Py_USING_UNICODE |
| static |
| int get_int(PyObject *exc, const char *name, Py_ssize_t *value) |
| { |
| PyObject *attr = PyObject_GetAttrString(exc, (char *)name); |
| |
| if (!attr) |
| return -1; |
| if (PyInt_Check(attr)) { |
| *value = PyInt_AS_LONG(attr); |
| } else if (PyLong_Check(attr)) { |
| *value = (size_t)PyLong_AsLongLong(attr); |
| if (*value == -1) { |
| Py_DECREF(attr); |
| return -1; |
| } |
| } else { |
| PyErr_Format(PyExc_TypeError, "%.200s attribute must be int", name); |
| Py_DECREF(attr); |
| return -1; |
| } |
| Py_DECREF(attr); |
| return 0; |
| } |
| |
| |
| static |
| int set_ssize_t(PyObject *exc, const char *name, Py_ssize_t value) |
| { |
| PyObject *obj = PyInt_FromSsize_t(value); |
| int result; |
| |
| if (!obj) |
| return -1; |
| result = PyObject_SetAttrString(exc, (char *)name, obj); |
| Py_DECREF(obj); |
| return result; |
| } |
| |
| static |
| PyObject *get_string(PyObject *exc, const char *name) |
| { |
| PyObject *attr = PyObject_GetAttrString(exc, (char *)name); |
| |
| if (!attr) |
| return NULL; |
| if (!PyString_Check(attr)) { |
| PyErr_Format(PyExc_TypeError, "%.200s attribute must be str", name); |
| Py_DECREF(attr); |
| return NULL; |
| } |
| return attr; |
| } |
| |
| |
| static |
| int set_string(PyObject *exc, const char *name, const char *value) |
| { |
| PyObject *obj = PyString_FromString(value); |
| int result; |
| |
| if (!obj) |
| return -1; |
| result = PyObject_SetAttrString(exc, (char *)name, obj); |
| Py_DECREF(obj); |
| return result; |
| } |
| |
| |
| static |
| PyObject *get_unicode(PyObject *exc, const char *name) |
| { |
| PyObject *attr = PyObject_GetAttrString(exc, (char *)name); |
| |
| if (!attr) |
| return NULL; |
| if (!PyUnicode_Check(attr)) { |
| PyErr_Format(PyExc_TypeError, "%.200s attribute must be unicode", name); |
| Py_DECREF(attr); |
| return NULL; |
| } |
| return attr; |
| } |
| |
| PyObject * PyUnicodeEncodeError_GetEncoding(PyObject *exc) |
| { |
| return get_string(exc, "encoding"); |
| } |
| |
| PyObject * PyUnicodeDecodeError_GetEncoding(PyObject *exc) |
| { |
| return get_string(exc, "encoding"); |
| } |
| |
| PyObject *PyUnicodeEncodeError_GetObject(PyObject *exc) |
| { |
| return get_unicode(exc, "object"); |
| } |
| |
| PyObject *PyUnicodeDecodeError_GetObject(PyObject *exc) |
| { |
| return get_string(exc, "object"); |
| } |
| |
| PyObject *PyUnicodeTranslateError_GetObject(PyObject *exc) |
| { |
| return get_unicode(exc, "object"); |
| } |
| |
| int PyUnicodeEncodeError_GetStart(PyObject *exc, Py_ssize_t *start) |
| { |
| if (!get_int(exc, "start", start)) { |
| PyObject *object = PyUnicodeEncodeError_GetObject(exc); |
| Py_ssize_t size; |
| if (!object) |
| return -1; |
| size = PyUnicode_GET_SIZE(object); |
| if (*start<0) |
| *start = 0; /*XXX check for values <0*/ |
| if (*start>=size) |
| *start = size-1; |
| Py_DECREF(object); |
| return 0; |
| } |
| return -1; |
| } |
| |
| |
| int PyUnicodeDecodeError_GetStart(PyObject *exc, Py_ssize_t *start) |
| { |
| if (!get_int(exc, "start", start)) { |
| PyObject *object = PyUnicodeDecodeError_GetObject(exc); |
| Py_ssize_t size; |
| if (!object) |
| return -1; |
| size = PyString_GET_SIZE(object); |
| if (*start<0) |
| *start = 0; |
| if (*start>=size) |
| *start = size-1; |
| Py_DECREF(object); |
| return 0; |
| } |
| return -1; |
| } |
| |
| |
| int PyUnicodeTranslateError_GetStart(PyObject *exc, Py_ssize_t *start) |
| { |
| return PyUnicodeEncodeError_GetStart(exc, start); |
| } |
| |
| |
| int PyUnicodeEncodeError_SetStart(PyObject *exc, Py_ssize_t start) |
| { |
| return set_ssize_t(exc, "start", start); |
| } |
| |
| |
| int PyUnicodeDecodeError_SetStart(PyObject *exc, Py_ssize_t start) |
| { |
| return set_ssize_t(exc, "start", start); |
| } |
| |
| |
| int PyUnicodeTranslateError_SetStart(PyObject *exc, Py_ssize_t start) |
| { |
| return set_ssize_t(exc, "start", start); |
| } |
| |
| |
| int PyUnicodeEncodeError_GetEnd(PyObject *exc, Py_ssize_t *end) |
| { |
| if (!get_int(exc, "end", end)) { |
| PyObject *object = PyUnicodeEncodeError_GetObject(exc); |
| Py_ssize_t size; |
| if (!object) |
| return -1; |
| size = PyUnicode_GET_SIZE(object); |
| if (*end<1) |
| *end = 1; |
| if (*end>size) |
| *end = size; |
| Py_DECREF(object); |
| return 0; |
| } |
| return -1; |
| } |
| |
| |
| int PyUnicodeDecodeError_GetEnd(PyObject *exc, Py_ssize_t *end) |
| { |
| if (!get_int(exc, "end", end)) { |
| PyObject *object = PyUnicodeDecodeError_GetObject(exc); |
| Py_ssize_t size; |
| if (!object) |
| return -1; |
| size = PyString_GET_SIZE(object); |
| if (*end<1) |
| *end = 1; |
| if (*end>size) |
| *end = size; |
| Py_DECREF(object); |
| return 0; |
| } |
| return -1; |
| } |
| |
| |
| int PyUnicodeTranslateError_GetEnd(PyObject *exc, Py_ssize_t *start) |
| { |
| return PyUnicodeEncodeError_GetEnd(exc, start); |
| } |
| |
| |
| int PyUnicodeEncodeError_SetEnd(PyObject *exc, Py_ssize_t end) |
| { |
| return set_ssize_t(exc, "end", end); |
| } |
| |
| |
| int PyUnicodeDecodeError_SetEnd(PyObject *exc, Py_ssize_t end) |
| { |
| return set_ssize_t(exc, "end", end); |
| } |
| |
| |
| int PyUnicodeTranslateError_SetEnd(PyObject *exc, Py_ssize_t end) |
| { |
| return set_ssize_t(exc, "end", end); |
| } |
| |
| |
| PyObject *PyUnicodeEncodeError_GetReason(PyObject *exc) |
| { |
| return get_string(exc, "reason"); |
| } |
| |
| |
| PyObject *PyUnicodeDecodeError_GetReason(PyObject *exc) |
| { |
| return get_string(exc, "reason"); |
| } |
| |
| |
| PyObject *PyUnicodeTranslateError_GetReason(PyObject *exc) |
| { |
| return get_string(exc, "reason"); |
| } |
| |
| |
| int PyUnicodeEncodeError_SetReason(PyObject *exc, const char *reason) |
| { |
| return set_string(exc, "reason", reason); |
| } |
| |
| |
| int PyUnicodeDecodeError_SetReason(PyObject *exc, const char *reason) |
| { |
| return set_string(exc, "reason", reason); |
| } |
| |
| |
| int PyUnicodeTranslateError_SetReason(PyObject *exc, const char *reason) |
| { |
| return set_string(exc, "reason", reason); |
| } |
| |
| |
| static PyObject * |
| UnicodeError__init__(PyObject *self, PyObject *args, PyTypeObject *objecttype) |
| { |
| PyObject *rtnval = NULL; |
| PyObject *encoding; |
| PyObject *object; |
| PyObject *start; |
| PyObject *end; |
| PyObject *reason; |
| |
| if (!(self = get_self(args))) |
| return NULL; |
| |
| if (!(args = PySequence_GetSlice(args, 1, PySequence_Size(args)))) |
| return NULL; |
| |
| if (!set_args_and_message(self, args)) { |
| Py_DECREF(args); |
| return NULL; |
| } |
| |
| if (!PyArg_ParseTuple(args, "O!O!O!O!O!", |
| &PyString_Type, &encoding, |
| objecttype, &object, |
| &PyInt_Type, &start, |
| &PyInt_Type, &end, |
| &PyString_Type, &reason)) |
| goto finally; |
| |
| if (PyObject_SetAttrString(self, "encoding", encoding)) |
| goto finally; |
| if (PyObject_SetAttrString(self, "object", object)) |
| goto finally; |
| if (PyObject_SetAttrString(self, "start", start)) |
| goto finally; |
| if (PyObject_SetAttrString(self, "end", end)) |
| goto finally; |
| if (PyObject_SetAttrString(self, "reason", reason)) |
| goto finally; |
| |
| Py_INCREF(Py_None); |
| rtnval = Py_None; |
| |
| finally: |
| Py_DECREF(args); |
| return rtnval; |
| } |
| |
| |
| static PyObject * |
| UnicodeEncodeError__init__(PyObject *self, PyObject *args) |
| { |
| return UnicodeError__init__(self, args, &PyUnicode_Type); |
| } |
| |
| static PyObject * |
| UnicodeEncodeError__str__(PyObject *self, PyObject *arg) |
| { |
| PyObject *encodingObj = NULL; |
| PyObject *objectObj = NULL; |
| Py_ssize_t start; |
| Py_ssize_t end; |
| PyObject *reasonObj = NULL; |
| PyObject *result = NULL; |
| |
| self = arg; |
| |
| if (!(encodingObj = PyUnicodeEncodeError_GetEncoding(self))) |
| goto error; |
| |
| if (!(objectObj = PyUnicodeEncodeError_GetObject(self))) |
| goto error; |
| |
| if (PyUnicodeEncodeError_GetStart(self, &start)) |
| goto error; |
| |
| if (PyUnicodeEncodeError_GetEnd(self, &end)) |
| goto error; |
| |
| if (!(reasonObj = PyUnicodeEncodeError_GetReason(self))) |
| goto error; |
| |
| if (end==start+1) { |
| int badchar = (int)PyUnicode_AS_UNICODE(objectObj)[start]; |
| char badchar_str[20]; |
| if (badchar <= 0xff) |
| PyOS_snprintf(badchar_str, sizeof(badchar_str), "x%02x", badchar); |
| else if (badchar <= 0xffff) |
| PyOS_snprintf(badchar_str, sizeof(badchar_str), "u%04x", badchar); |
| else |
| PyOS_snprintf(badchar_str, sizeof(badchar_str), "U%08x", badchar); |
| result = PyString_FromFormat( |
| "'%.400s' codec can't encode character u'\\%s' in position %zd: %.400s", |
| PyString_AS_STRING(encodingObj), |
| badchar_str, |
| start, |
| PyString_AS_STRING(reasonObj) |
| ); |
| } |
| else { |
| result = PyString_FromFormat( |
| "'%.400s' codec can't encode characters in position %zd-%zd: %.400s", |
| PyString_AS_STRING(encodingObj), |
| start, |
| (end-1), |
| PyString_AS_STRING(reasonObj) |
| ); |
| } |
| |
| error: |
| Py_XDECREF(reasonObj); |
| Py_XDECREF(objectObj); |
| Py_XDECREF(encodingObj); |
| return result; |
| } |
| |
| static PyMethodDef UnicodeEncodeError_methods[] = { |
| {"__init__", UnicodeEncodeError__init__, METH_VARARGS}, |
| {"__str__", UnicodeEncodeError__str__, METH_O}, |
| {NULL, NULL} |
| }; |
| |
| |
| 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); |
| } |
| |
| |
| static PyObject * |
| UnicodeDecodeError__init__(PyObject *self, PyObject *args) |
| { |
| return UnicodeError__init__(self, args, &PyString_Type); |
| } |
| |
| static PyObject * |
| UnicodeDecodeError__str__(PyObject *self, PyObject *arg) |
| { |
| PyObject *encodingObj = NULL; |
| PyObject *objectObj = NULL; |
| Py_ssize_t start; |
| Py_ssize_t end; |
| PyObject *reasonObj = NULL; |
| PyObject *result = NULL; |
| |
| self = arg; |
| |
| if (!(encodingObj = PyUnicodeDecodeError_GetEncoding(self))) |
| goto error; |
| |
| if (!(objectObj = PyUnicodeDecodeError_GetObject(self))) |
| goto error; |
| |
| if (PyUnicodeDecodeError_GetStart(self, &start)) |
| goto error; |
| |
| if (PyUnicodeDecodeError_GetEnd(self, &end)) |
| goto error; |
| |
| if (!(reasonObj = PyUnicodeDecodeError_GetReason(self))) |
| goto error; |
| |
| if (end==start+1) { |
| /* FromFormat does not support %02x, so format that separately */ |
| char byte[4]; |
| PyOS_snprintf(byte, sizeof(byte), "%02x", |
| ((int)PyString_AS_STRING(objectObj)[start])&0xff); |
| result = PyString_FromFormat( |
| "'%.400s' codec can't decode byte 0x%s in position %zd: %.400s", |
| PyString_AS_STRING(encodingObj), |
| byte, |
| start, |
| PyString_AS_STRING(reasonObj) |
| ); |
| } |
| else { |
| result = PyString_FromFormat( |
| "'%.400s' codec can't decode bytes in position %zd-%zd: %.400s", |
| PyString_AS_STRING(encodingObj), |
| start, |
| (end-1), |
| PyString_AS_STRING(reasonObj) |
| ); |
| } |
| |
| |
| error: |
| Py_XDECREF(reasonObj); |
| Py_XDECREF(objectObj); |
| Py_XDECREF(encodingObj); |
| return result; |
| } |
| |
| static PyMethodDef UnicodeDecodeError_methods[] = { |
| {"__init__", UnicodeDecodeError__init__, METH_VARARGS}, |
| {"__str__", UnicodeDecodeError__str__, METH_O}, |
| {NULL, NULL} |
| }; |
| |
| |
| PyObject * PyUnicodeDecodeError_Create( |
| const char *encoding, const char *object, Py_ssize_t length, |
| Py_ssize_t start, Py_ssize_t end, const char *reason) |
| { |
| assert(length < INT_MAX); |
| assert(start < INT_MAX); |
| assert(end < INT_MAX); |
| return PyObject_CallFunction(PyExc_UnicodeDecodeError, "ss#nns", |
| encoding, object, length, start, end, reason); |
| } |
| |
| |
| static PyObject * |
| UnicodeTranslateError__init__(PyObject *self, PyObject *args) |
| { |
| PyObject *rtnval = NULL; |
| PyObject *object; |
| PyObject *start; |
| PyObject *end; |
| PyObject *reason; |
| |
| if (!(self = get_self(args))) |
| return NULL; |
| |
| if (!(args = PySequence_GetSlice(args, 1, PySequence_Size(args)))) |
| return NULL; |
| |
| if (!set_args_and_message(self, args)) { |
| Py_DECREF(args); |
| return NULL; |
| } |
| |
| if (!PyArg_ParseTuple(args, "O!O!O!O!", |
| &PyUnicode_Type, &object, |
| &PyInt_Type, &start, |
| &PyInt_Type, &end, |
| &PyString_Type, &reason)) |
| goto finally; |
| |
| if (PyObject_SetAttrString(self, "object", object)) |
| goto finally; |
| if (PyObject_SetAttrString(self, "start", start)) |
| goto finally; |
| if (PyObject_SetAttrString(self, "end", end)) |
| goto finally; |
| if (PyObject_SetAttrString(self, "reason", reason)) |
| goto finally; |
| |
| rtnval = Py_None; |
| Py_INCREF(rtnval); |
| |
| finally: |
| Py_DECREF(args); |
| return rtnval; |
| } |
| |
| |
| static PyObject * |
| UnicodeTranslateError__str__(PyObject *self, PyObject *arg) |
| { |
| PyObject *objectObj = NULL; |
| Py_ssize_t start; |
| Py_ssize_t end; |
| PyObject *reasonObj = NULL; |
| PyObject *result = NULL; |
| |
| self = arg; |
| |
| if (!(objectObj = PyUnicodeTranslateError_GetObject(self))) |
| goto error; |
| |
| if (PyUnicodeTranslateError_GetStart(self, &start)) |
| goto error; |
| |
| if (PyUnicodeTranslateError_GetEnd(self, &end)) |
| goto error; |
| |
| if (!(reasonObj = PyUnicodeTranslateError_GetReason(self))) |
| goto error; |
| |
| if (end==start+1) { |
| int badchar = (int)PyUnicode_AS_UNICODE(objectObj)[start]; |
| char badchar_str[20]; |
| if (badchar <= 0xff) |
| PyOS_snprintf(badchar_str, sizeof(badchar_str), "x%02x", badchar); |
| else if (badchar <= 0xffff) |
| PyOS_snprintf(badchar_str, sizeof(badchar_str), "u%04x", badchar); |
| else |
| PyOS_snprintf(badchar_str, sizeof(badchar_str), "U%08x", badchar); |
| result = PyString_FromFormat( |
| "can't translate character u'\\%s' in position %zd: %.400s", |
| badchar_str, |
| start, |
| PyString_AS_STRING(reasonObj) |
| ); |
| } |
| else { |
| result = PyString_FromFormat( |
| "can't translate characters in position %zd-%zd: %.400s", |
| start, |
| (end-1), |
| PyString_AS_STRING(reasonObj) |
| ); |
| } |
| |
| error: |
| Py_XDECREF(reasonObj); |
| Py_XDECREF(objectObj); |
| return result; |
| } |
| |
| static PyMethodDef UnicodeTranslateError_methods[] = { |
| {"__init__", UnicodeTranslateError__init__, METH_VARARGS}, |
| {"__str__", UnicodeTranslateError__str__, METH_O}, |
| {NULL, NULL} |
| }; |
| |
| |
| 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); |
| } |
| #endif |
| |
| |
| |
| /* Exception doc strings */ |
| |
| PyDoc_STRVAR(AssertionError__doc__, "Assertion failed."); |
| |
| PyDoc_STRVAR(LookupError__doc__, "Base class for lookup errors."); |
| |
| PyDoc_STRVAR(IndexError__doc__, "Sequence index out of range."); |
| |
| PyDoc_STRVAR(KeyError__doc__, "Mapping key not found."); |
| |
| PyDoc_STRVAR(ArithmeticError__doc__, "Base class for arithmetic errors."); |
| |
| PyDoc_STRVAR(OverflowError__doc__, "Result too large to be represented."); |
| |
| PyDoc_STRVAR(ZeroDivisionError__doc__, |
| "Second argument to a division or modulo operation was zero."); |
| |
| PyDoc_STRVAR(FloatingPointError__doc__, "Floating point operation failed."); |
| |
| PyDoc_STRVAR(ValueError__doc__, |
| "Inappropriate argument value (of correct type)."); |
| |
| PyDoc_STRVAR(UnicodeError__doc__, "Unicode related error."); |
| |
| #ifdef Py_USING_UNICODE |
| PyDoc_STRVAR(UnicodeEncodeError__doc__, "Unicode encoding error."); |
| |
| PyDoc_STRVAR(UnicodeDecodeError__doc__, "Unicode decoding error."); |
| |
| PyDoc_STRVAR(UnicodeTranslateError__doc__, "Unicode translation error."); |
| #endif |
| |
| PyDoc_STRVAR(SystemError__doc__, |
| "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."); |
| |
| PyDoc_STRVAR(ReferenceError__doc__, |
| "Weak ref proxy used after referent went away."); |
| |
| PyDoc_STRVAR(MemoryError__doc__, "Out of memory."); |
| |
| PyDoc_STRVAR(IndentationError__doc__, "Improper indentation."); |
| |
| PyDoc_STRVAR(TabError__doc__, "Improper mixture of spaces and tabs."); |
| |
| /* Warning category docstrings */ |
| |
| PyDoc_STRVAR(Warning__doc__, "Base class for warning categories."); |
| |
| PyDoc_STRVAR(UserWarning__doc__, |
| "Base class for warnings generated by user code."); |
| |
| PyDoc_STRVAR(DeprecationWarning__doc__, |
| "Base class for warnings about deprecated features."); |
| |
| PyDoc_STRVAR(PendingDeprecationWarning__doc__, |
| "Base class for warnings about features which will be deprecated " |
| "in the future."); |
| |
| PyDoc_STRVAR(SyntaxWarning__doc__, |
| "Base class for warnings about dubious syntax."); |
| |
| PyDoc_STRVAR(OverflowWarning__doc__, |
| "Base class for warnings about numeric overflow. Won't exist in Python 2.5."); |
| |
| PyDoc_STRVAR(RuntimeWarning__doc__, |
| "Base class for warnings about dubious runtime behavior."); |
| |
| PyDoc_STRVAR(FutureWarning__doc__, |
| "Base class for warnings about constructs that will change semantically " |
| "in the future."); |
| |
| PyDoc_STRVAR(ImportWarning__doc__, |
| "Base class for warnings about probable mistakes in module imports"); |
| |
| |
| /* module global functions */ |
| static PyMethodDef functions[] = { |
| /* Sentinel */ |
| {NULL, NULL} |
| }; |
| |
| |
| |
| /* Global C API defined exceptions */ |
| |
| PyObject *PyExc_BaseException; |
| PyObject *PyExc_Exception; |
| PyObject *PyExc_StopIteration; |
| PyObject *PyExc_GeneratorExit; |
| PyObject *PyExc_StandardError; |
| PyObject *PyExc_ArithmeticError; |
| PyObject *PyExc_LookupError; |
| |
| PyObject *PyExc_AssertionError; |
| PyObject *PyExc_AttributeError; |
| PyObject *PyExc_EOFError; |
| PyObject *PyExc_FloatingPointError; |
| PyObject *PyExc_EnvironmentError; |
| PyObject *PyExc_IOError; |
| PyObject *PyExc_OSError; |
| PyObject *PyExc_ImportError; |
| PyObject *PyExc_IndexError; |
| PyObject *PyExc_KeyError; |
| PyObject *PyExc_KeyboardInterrupt; |
| PyObject *PyExc_MemoryError; |
| PyObject *PyExc_NameError; |
| PyObject *PyExc_OverflowError; |
| PyObject *PyExc_RuntimeError; |
| PyObject *PyExc_NotImplementedError; |
| PyObject *PyExc_SyntaxError; |
| PyObject *PyExc_IndentationError; |
| PyObject *PyExc_TabError; |
| PyObject *PyExc_ReferenceError; |
| PyObject *PyExc_SystemError; |
| PyObject *PyExc_SystemExit; |
| PyObject *PyExc_UnboundLocalError; |
| PyObject *PyExc_UnicodeError; |
| PyObject *PyExc_UnicodeEncodeError; |
| PyObject *PyExc_UnicodeDecodeError; |
| PyObject *PyExc_UnicodeTranslateError; |
| PyObject *PyExc_TypeError; |
| PyObject *PyExc_ValueError; |
| PyObject *PyExc_ZeroDivisionError; |
| #ifdef MS_WINDOWS |
| PyObject *PyExc_WindowsError; |
| #endif |
| #ifdef __VMS |
| PyObject *PyExc_VMSError; |
| #endif |
| |
| /* Pre-computed MemoryError instance. Best to create this as early as |
| * possible and not wait until a MemoryError is actually raised! |
| */ |
| PyObject *PyExc_MemoryErrorInst; |
| |
| /* Predefined warning categories */ |
| PyObject *PyExc_Warning; |
| PyObject *PyExc_UserWarning; |
| PyObject *PyExc_DeprecationWarning; |
| PyObject *PyExc_PendingDeprecationWarning; |
| PyObject *PyExc_SyntaxWarning; |
| /* PyExc_OverflowWarning should be removed for Python 2.5 */ |
| PyObject *PyExc_OverflowWarning; |
| PyObject *PyExc_RuntimeWarning; |
| PyObject *PyExc_FutureWarning; |
| PyObject *PyExc_ImportWarning; |
| |
| |
| |
| /* mapping between exception names and their PyObject ** */ |
| static struct { |
| char *name; |
| PyObject **exc; |
| PyObject **base; /* NULL == PyExc_StandardError */ |
| char *docstr; |
| PyMethodDef *methods; |
| int (*classinit)(PyObject *); |
| } exctable[] = { |
| /* |
| * The first four classes MUST appear in exactly this order |
| */ |
| {"BaseException", &PyExc_BaseException}, |
| {"Exception", &PyExc_Exception, &PyExc_BaseException, Exception__doc__}, |
| {"StopIteration", &PyExc_StopIteration, &PyExc_Exception, |
| StopIteration__doc__}, |
| {"GeneratorExit", &PyExc_GeneratorExit, &PyExc_Exception, |
| GeneratorExit__doc__}, |
| {"StandardError", &PyExc_StandardError, &PyExc_Exception, |
| StandardError__doc__}, |
| {"TypeError", &PyExc_TypeError, 0, TypeError__doc__}, |
| /* |
| * The rest appear in depth-first order of the hierarchy |
| */ |
| {"SystemExit", &PyExc_SystemExit, &PyExc_BaseException, SystemExit__doc__, |
| SystemExit_methods}, |
| {"KeyboardInterrupt", &PyExc_KeyboardInterrupt, &PyExc_BaseException, |
| KeyboardInterrupt__doc__}, |
| {"ImportError", &PyExc_ImportError, 0, ImportError__doc__}, |
| {"EnvironmentError", &PyExc_EnvironmentError, 0, EnvironmentError__doc__, |
| EnvironmentError_methods}, |
| {"IOError", &PyExc_IOError, &PyExc_EnvironmentError, IOError__doc__}, |
| {"OSError", &PyExc_OSError, &PyExc_EnvironmentError, OSError__doc__}, |
| #ifdef MS_WINDOWS |
| {"WindowsError", &PyExc_WindowsError, &PyExc_OSError, |
| WindowsError__doc__, WindowsError_methods}, |
| #endif /* MS_WINDOWS */ |
| #ifdef __VMS |
| {"VMSError", &PyExc_VMSError, &PyExc_OSError, |
| VMSError__doc__}, |
| #endif |
| {"EOFError", &PyExc_EOFError, 0, EOFError__doc__}, |
| {"RuntimeError", &PyExc_RuntimeError, 0, RuntimeError__doc__}, |
| {"NotImplementedError", &PyExc_NotImplementedError, |
| &PyExc_RuntimeError, NotImplementedError__doc__}, |
| {"NameError", &PyExc_NameError, 0, NameError__doc__}, |
| {"UnboundLocalError", &PyExc_UnboundLocalError, &PyExc_NameError, |
| UnboundLocalError__doc__}, |
| {"AttributeError", &PyExc_AttributeError, 0, AttributeError__doc__}, |
| {"SyntaxError", &PyExc_SyntaxError, 0, SyntaxError__doc__, |
| SyntaxError_methods, SyntaxError__classinit__}, |
| {"IndentationError", &PyExc_IndentationError, &PyExc_SyntaxError, |
| IndentationError__doc__}, |
| {"TabError", &PyExc_TabError, &PyExc_IndentationError, |
| TabError__doc__}, |
| {"AssertionError", &PyExc_AssertionError, 0, AssertionError__doc__}, |
| {"LookupError", &PyExc_LookupError, 0, LookupError__doc__}, |
| {"IndexError", &PyExc_IndexError, &PyExc_LookupError, |
| IndexError__doc__}, |
| {"KeyError", &PyExc_KeyError, &PyExc_LookupError, |
| KeyError__doc__, KeyError_methods}, |
| {"ArithmeticError", &PyExc_ArithmeticError, 0, ArithmeticError__doc__}, |
| {"OverflowError", &PyExc_OverflowError, &PyExc_ArithmeticError, |
| OverflowError__doc__}, |
| {"ZeroDivisionError", &PyExc_ZeroDivisionError, &PyExc_ArithmeticError, |
| ZeroDivisionError__doc__}, |
| {"FloatingPointError", &PyExc_FloatingPointError, &PyExc_ArithmeticError, |
| FloatingPointError__doc__}, |
| {"ValueError", &PyExc_ValueError, 0, ValueError__doc__}, |
| {"UnicodeError", &PyExc_UnicodeError, &PyExc_ValueError, UnicodeError__doc__}, |
| #ifdef Py_USING_UNICODE |
| {"UnicodeEncodeError", &PyExc_UnicodeEncodeError, &PyExc_UnicodeError, |
| UnicodeEncodeError__doc__, UnicodeEncodeError_methods}, |
| {"UnicodeDecodeError", &PyExc_UnicodeDecodeError, &PyExc_UnicodeError, |
| UnicodeDecodeError__doc__, UnicodeDecodeError_methods}, |
| {"UnicodeTranslateError", &PyExc_UnicodeTranslateError, &PyExc_UnicodeError, |
| UnicodeTranslateError__doc__, UnicodeTranslateError_methods}, |
| #endif |
| {"ReferenceError", &PyExc_ReferenceError, 0, ReferenceError__doc__}, |
| {"SystemError", &PyExc_SystemError, 0, SystemError__doc__}, |
| {"MemoryError", &PyExc_MemoryError, 0, MemoryError__doc__}, |
| /* Warning categories */ |
| {"Warning", &PyExc_Warning, &PyExc_Exception, Warning__doc__}, |
| {"UserWarning", &PyExc_UserWarning, &PyExc_Warning, UserWarning__doc__}, |
| {"DeprecationWarning", &PyExc_DeprecationWarning, &PyExc_Warning, |
| DeprecationWarning__doc__}, |
| {"PendingDeprecationWarning", &PyExc_PendingDeprecationWarning, &PyExc_Warning, |
| PendingDeprecationWarning__doc__}, |
| {"SyntaxWarning", &PyExc_SyntaxWarning, &PyExc_Warning, SyntaxWarning__doc__}, |
| /* OverflowWarning should be removed for Python 2.5 */ |
| {"OverflowWarning", &PyExc_OverflowWarning, &PyExc_Warning, |
| OverflowWarning__doc__}, |
| {"RuntimeWarning", &PyExc_RuntimeWarning, &PyExc_Warning, |
| RuntimeWarning__doc__}, |
| {"FutureWarning", &PyExc_FutureWarning, &PyExc_Warning, |
| FutureWarning__doc__}, |
| {"ImportWarning", &PyExc_ImportWarning, &PyExc_Warning, |
| ImportWarning__doc__}, |
| /* Sentinel */ |
| {NULL} |
| }; |
| |
| |
| |
| void |
| _PyExc_Init(void) |
| { |
| char *modulename = "exceptions"; |
| Py_ssize_t modnamesz = strlen(modulename); |
| int i; |
| PyObject *me, *mydict, *bltinmod, *bdict, *doc, *args; |
| |
| me = Py_InitModule(modulename, functions); |
| if (me == NULL) |
| goto err; |
| mydict = PyModule_GetDict(me); |
| if (mydict == NULL) |
| goto err; |
| bltinmod = PyImport_ImportModule("__builtin__"); |
| if (bltinmod == NULL) |
| goto err; |
| bdict = PyModule_GetDict(bltinmod); |
| if (bdict == NULL) |
| goto err; |
| doc = PyString_FromString(module__doc__); |
| if (doc == NULL) |
| goto err; |
| |
| i = PyDict_SetItemString(mydict, "__doc__", doc); |
| Py_DECREF(doc); |
| if (i < 0) { |
| err: |
| Py_FatalError("exceptions bootstrapping error."); |
| return; |
| } |
| |
| /* This is the base class of all exceptions, so make it first. */ |
| if (make_BaseException(modulename) || |
| PyDict_SetItemString(mydict, "BaseException", PyExc_BaseException) || |
| PyDict_SetItemString(bdict, "BaseException", PyExc_BaseException)) |
| { |
| Py_FatalError("Base class `BaseException' could not be created."); |
| } |
| |
| /* Now we can programmatically create all the remaining exceptions. |
| * Remember to start the loop at 1 to skip Exceptions. |
| */ |
| for (i=1; exctable[i].name; i++) { |
| int status; |
| char *cname = PyMem_NEW(char, modnamesz+strlen(exctable[i].name)+2); |
| PyObject *base; |
| |
| (void)strcpy(cname, modulename); |
| (void)strcat(cname, "."); |
| (void)strcat(cname, exctable[i].name); |
| |
| if (exctable[i].base == 0) |
| base = PyExc_StandardError; |
| else |
| base = *exctable[i].base; |
| |
| status = make_class(exctable[i].exc, base, cname, |
| exctable[i].methods, |
| exctable[i].docstr); |
| |
| PyMem_DEL(cname); |
| |
| if (status) |
| Py_FatalError("Standard exception classes could not be created."); |
| |
| if (exctable[i].classinit) { |
| status = (*exctable[i].classinit)(*exctable[i].exc); |
| if (status) |
| Py_FatalError("An exception class could not be initialized."); |
| } |
| |
| /* Now insert the class into both this module and the __builtin__ |
| * module. |
| */ |
| if (PyDict_SetItemString(mydict, exctable[i].name, *exctable[i].exc) || |
| PyDict_SetItemString(bdict, exctable[i].name, *exctable[i].exc)) |
| { |
| Py_FatalError("Module dictionary insertion problem."); |
| } |
| } |
| |
| /* Now we need to pre-allocate a MemoryError instance */ |
| args = PyTuple_New(0); |
| if (!args || |
| !(PyExc_MemoryErrorInst = PyEval_CallObject(PyExc_MemoryError, args))) |
| { |
| Py_FatalError("Cannot pre-allocate MemoryError instance\n"); |
| } |
| Py_DECREF(args); |
| |
| /* We're done with __builtin__ */ |
| Py_DECREF(bltinmod); |
| } |
| |
| |
| void |
| _PyExc_Fini(void) |
| { |
| int i; |
| |
| Py_XDECREF(PyExc_MemoryErrorInst); |
| PyExc_MemoryErrorInst = NULL; |
| |
| for (i=0; exctable[i].name; i++) { |
| /* clear the class's dictionary, freeing up circular references |
| * between the class and its methods. |
| */ |
| PyObject* cdict = PyObject_GetAttrString(*exctable[i].exc, "__dict__"); |
| PyDict_Clear(cdict); |
| Py_DECREF(cdict); |
| |
| /* Now decref the exception class */ |
| Py_XDECREF(*exctable[i].exc); |
| *exctable[i].exc = NULL; |
| } |
| } |