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cpython/Modules/_testcapi/exceptions.c

428 lines
12 KiB
C

// clinic/exceptions.c.h uses internal pycore_modsupport.h API
#define PYTESTCAPI_NEED_INTERNAL_API
#include "parts.h"
#include "util.h"
#include "clinic/exceptions.c.h"
/*[clinic input]
module _testcapi
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=6361033e795369fc]*/
/*[clinic input]
_testcapi.err_set_raised
exception as exc: object
/
[clinic start generated code]*/
static PyObject *
_testcapi_err_set_raised(PyObject *module, PyObject *exc)
/*[clinic end generated code: output=0a0c7743961fcae5 input=c5f7331864a94df9]*/
{
Py_INCREF(exc);
PyErr_SetRaisedException(exc);
assert(PyErr_Occurred());
return NULL;
}
static PyObject *
err_restore(PyObject *self, PyObject *args) {
PyObject *type = NULL, *value = NULL, *traceback = NULL;
switch(PyTuple_Size(args)) {
case 3:
traceback = PyTuple_GetItem(args, 2);
Py_INCREF(traceback);
/* fall through */
case 2:
value = PyTuple_GetItem(args, 1);
Py_INCREF(value);
/* fall through */
case 1:
type = PyTuple_GetItem(args, 0);
Py_INCREF(type);
break;
default:
PyErr_SetString(PyExc_TypeError,
"wrong number of arguments");
return NULL;
}
PyErr_Restore(type, value, traceback);
assert(PyErr_Occurred());
return NULL;
}
/*[clinic input]
_testcapi.exception_print
exception as exc: object
legacy: bool = False
/
To test the format of exceptions as printed out.
[clinic start generated code]*/
static PyObject *
_testcapi_exception_print_impl(PyObject *module, PyObject *exc, int legacy)
/*[clinic end generated code: output=3f04fe0c18412ae0 input=c76f42cb94136dbf]*/
{
if (legacy) {
PyObject *tb = NULL;
if (PyExceptionInstance_Check(exc)) {
tb = PyException_GetTraceback(exc);
}
PyErr_Display((PyObject *) Py_TYPE(exc), exc, tb);
Py_XDECREF(tb);
}
else {
PyErr_DisplayException(exc);
}
Py_RETURN_NONE;
}
/*[clinic input]
_testcapi.make_exception_with_doc
name: str
doc: str = NULL
base: object = NULL
dict: object = NULL
Test PyErr_NewExceptionWithDoc (also exercise PyErr_NewException). Run via Lib/test/test_exceptions.py
[clinic start generated code]*/
static PyObject *
_testcapi_make_exception_with_doc_impl(PyObject *module, const char *name,
const char *doc, PyObject *base,
PyObject *dict)
/*[clinic end generated code: output=439f0d963c1ce2c4 input=23a73013f8a8795a]*/
{
return PyErr_NewExceptionWithDoc(name, doc, base, dict);
}
/*[clinic input]
_testcapi.exc_set_object
exception as exc: object
obj: object
/
[clinic start generated code]*/
static PyObject *
_testcapi_exc_set_object_impl(PyObject *module, PyObject *exc, PyObject *obj)
/*[clinic end generated code: output=34c8c7c83e5c8463 input=fc530aafb1b0a360]*/
{
PyErr_SetObject(exc, obj);
return NULL;
}
/*[clinic input]
_testcapi.exc_set_object_fetch = _testcapi.exc_set_object
[clinic start generated code]*/
static PyObject *
_testcapi_exc_set_object_fetch_impl(PyObject *module, PyObject *exc,
PyObject *obj)
/*[clinic end generated code: output=7a5ff5f6d3cf687f input=77ec686f1f95fa38]*/
{
PyObject *type = UNINITIALIZED_PTR;
PyObject *value = UNINITIALIZED_PTR;
PyObject *tb = UNINITIALIZED_PTR;
PyErr_SetObject(exc, obj);
PyErr_Fetch(&type, &value, &tb);
assert(type != UNINITIALIZED_PTR);
assert(value != UNINITIALIZED_PTR);
assert(tb != UNINITIALIZED_PTR);
Py_XDECREF(type);
Py_XDECREF(tb);
return value;
}
/*[clinic input]
_testcapi.err_setstring
exc: object
value: str(zeroes=True, accept={robuffer, str, NoneType})
/
[clinic start generated code]*/
static PyObject *
_testcapi_err_setstring_impl(PyObject *module, PyObject *exc,
const char *value, Py_ssize_t value_length)
/*[clinic end generated code: output=fba8705e5703dd3f input=e8a95fad66d9004b]*/
{
NULLABLE(exc);
PyErr_SetString(exc, value);
return NULL;
}
/*[clinic input]
_testcapi.err_setfromerrnowithfilename
error: int
exc: object
value: str(zeroes=True, accept={robuffer, str, NoneType})
/
[clinic start generated code]*/
static PyObject *
_testcapi_err_setfromerrnowithfilename_impl(PyObject *module, int error,
PyObject *exc, const char *value,
Py_ssize_t value_length)
/*[clinic end generated code: output=d02df5749a01850e input=ff7c384234bf097f]*/
{
NULLABLE(exc);
errno = error;
PyErr_SetFromErrnoWithFilename(exc, value);
return NULL;
}
/*[clinic input]
_testcapi.raise_exception
exception as exc: object
num_args: int
/
[clinic start generated code]*/
static PyObject *
_testcapi_raise_exception_impl(PyObject *module, PyObject *exc, int num_args)
/*[clinic end generated code: output=eb0a9c5d69e0542d input=83d6262c3829d088]*/
{
PyObject *exc_args = PyTuple_New(num_args);
if (exc_args == NULL) {
return NULL;
}
for (int i = 0; i < num_args; ++i) {
PyObject *v = PyLong_FromLong(i);
if (v == NULL) {
Py_DECREF(exc_args);
return NULL;
}
PyTuple_SET_ITEM(exc_args, i, v);
}
PyErr_SetObject(exc, exc_args);
Py_DECREF(exc_args);
return NULL;
}
/*[clinic input]
_testcapi.raise_memoryerror
[clinic start generated code]*/
static PyObject *
_testcapi_raise_memoryerror_impl(PyObject *module)
/*[clinic end generated code: output=dd057803fb0131e6 input=6ca521bd07fb73cb]*/
{
return PyErr_NoMemory();
}
/*[clinic input]
_testcapi.fatal_error
message: str(accept={robuffer})
release_gil: bool = False
/
[clinic start generated code]*/
static PyObject *
_testcapi_fatal_error_impl(PyObject *module, const char *message,
int release_gil)
/*[clinic end generated code: output=9c3237116e6a03e8 input=1be357a2ccb04c8c]*/
{
if (release_gil) {
Py_BEGIN_ALLOW_THREADS
Py_FatalError(message);
Py_END_ALLOW_THREADS
}
else {
Py_FatalError(message);
}
// Py_FatalError() does not return, but exits the process.
Py_RETURN_NONE;
}
/*[clinic input]
_testcapi.set_exc_info
new_type: object
new_value: object
new_tb: object
/
[clinic start generated code]*/
static PyObject *
_testcapi_set_exc_info_impl(PyObject *module, PyObject *new_type,
PyObject *new_value, PyObject *new_tb)
/*[clinic end generated code: output=b55fa35dec31300e input=ea9f19e0f55fe5b3]*/
{
PyObject *type = UNINITIALIZED_PTR, *value = UNINITIALIZED_PTR, *tb = UNINITIALIZED_PTR;
PyErr_GetExcInfo(&type, &value, &tb);
Py_INCREF(new_type);
Py_INCREF(new_value);
Py_INCREF(new_tb);
PyErr_SetExcInfo(new_type, new_value, new_tb);
PyObject *orig_exc = PyTuple_Pack(3,
type ? type : Py_None,
value ? value : Py_None,
tb ? tb : Py_None);
Py_XDECREF(type);
Py_XDECREF(value);
Py_XDECREF(tb);
return orig_exc;
}
/*[clinic input]
_testcapi.set_exception
new_exc: object
/
[clinic start generated code]*/
static PyObject *
_testcapi_set_exception(PyObject *module, PyObject *new_exc)
/*[clinic end generated code: output=8b969b35d029e96d input=c89d4ca966c69738]*/
{
PyObject *exc = PyErr_GetHandledException();
assert(PyExceptionInstance_Check(exc) || exc == NULL);
PyErr_SetHandledException(new_exc);
return exc;
}
/*[clinic input]
_testcapi.traceback_print
traceback: object
file: object
/
To test the format of tracebacks as printed out.
[clinic start generated code]*/
static PyObject *
_testcapi_traceback_print_impl(PyObject *module, PyObject *traceback,
PyObject *file)
/*[clinic end generated code: output=17074ecf9d95cf30 input=9423f2857b008ca8]*/
{
if (PyTraceBack_Print(traceback, file) < 0) {
return NULL;
}
Py_RETURN_NONE;
}
static PyObject *
err_writeunraisable(PyObject *Py_UNUSED(module), PyObject *args)
{
PyObject *exc, *obj;
if (!PyArg_ParseTuple(args, "OO", &exc, &obj)) {
return NULL;
}
NULLABLE(exc);
NULLABLE(obj);
if (exc) {
PyErr_SetRaisedException(Py_NewRef(exc));
}
PyErr_WriteUnraisable(obj);
Py_RETURN_NONE;
}
static PyObject *
err_formatunraisable(PyObject *Py_UNUSED(module), PyObject *args)
{
PyObject *exc;
const char *fmt;
Py_ssize_t fmtlen;
PyObject *objs[10] = {NULL};
if (!PyArg_ParseTuple(args, "Oz#|OOOOOOOOOO", &exc, &fmt, &fmtlen,
&objs[0], &objs[1], &objs[2], &objs[3], &objs[4],
&objs[5], &objs[6], &objs[7], &objs[8], &objs[9]))
{
return NULL;
}
NULLABLE(exc);
if (exc) {
PyErr_SetRaisedException(Py_NewRef(exc));
}
PyErr_FormatUnraisable(fmt,
objs[0], objs[1], objs[2], objs[3], objs[4],
objs[5], objs[6], objs[7], objs[8], objs[9]);
Py_RETURN_NONE;
}
/*[clinic input]
_testcapi.unstable_exc_prep_reraise_star
orig: object
excs: object
/
To test PyUnstable_Exc_PrepReraiseStar.
[clinic start generated code]*/
static PyObject *
_testcapi_unstable_exc_prep_reraise_star_impl(PyObject *module,
PyObject *orig, PyObject *excs)
/*[clinic end generated code: output=850cf008e0563c77 input=27fbcda2203eb301]*/
{
return PyUnstable_Exc_PrepReraiseStar(orig, excs);
}
/*
* Define the PyRecurdingInfinitelyError_Type
*/
static PyTypeObject PyRecursingInfinitelyError_Type;
static int
recurse_infinitely_error_init(PyObject *self, PyObject *args, PyObject *kwds)
{
PyObject *type = (PyObject *)&PyRecursingInfinitelyError_Type;
/* Instantiating this exception starts infinite recursion. */
Py_INCREF(type);
PyErr_SetObject(type, NULL);
return -1;
}
static PyTypeObject PyRecursingInfinitelyError_Type = {
.tp_name = "RecursingInfinitelyError",
.tp_basicsize = sizeof(PyBaseExceptionObject),
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.tp_doc = PyDoc_STR("Instantiating this exception starts infinite recursion."),
.tp_init = (initproc)recurse_infinitely_error_init,
};
static PyMethodDef test_methods[] = {
{"err_restore", err_restore, METH_VARARGS},
{"err_writeunraisable", err_writeunraisable, METH_VARARGS},
{"err_formatunraisable", err_formatunraisable, METH_VARARGS},
_TESTCAPI_ERR_SET_RAISED_METHODDEF
_TESTCAPI_EXCEPTION_PRINT_METHODDEF
_TESTCAPI_FATAL_ERROR_METHODDEF
_TESTCAPI_MAKE_EXCEPTION_WITH_DOC_METHODDEF
_TESTCAPI_EXC_SET_OBJECT_METHODDEF
_TESTCAPI_EXC_SET_OBJECT_FETCH_METHODDEF
_TESTCAPI_ERR_SETSTRING_METHODDEF
_TESTCAPI_ERR_SETFROMERRNOWITHFILENAME_METHODDEF
_TESTCAPI_RAISE_EXCEPTION_METHODDEF
_TESTCAPI_RAISE_MEMORYERROR_METHODDEF
_TESTCAPI_SET_EXC_INFO_METHODDEF
_TESTCAPI_SET_EXCEPTION_METHODDEF
_TESTCAPI_TRACEBACK_PRINT_METHODDEF
_TESTCAPI_UNSTABLE_EXC_PREP_RERAISE_STAR_METHODDEF
{NULL},
};
int
_PyTestCapi_Init_Exceptions(PyObject *mod)
{
PyRecursingInfinitelyError_Type.tp_base = (PyTypeObject *)PyExc_Exception;
if (PyType_Ready(&PyRecursingInfinitelyError_Type) < 0) {
return -1;
}
if (PyModule_AddObjectRef(mod, "RecursingInfinitelyError",
(PyObject *)&PyRecursingInfinitelyError_Type) < 0)
{
return -1;
}
if (PyModule_AddFunctions(mod, test_methods) < 0) {
return -1;
}
return 0;
}