cpython/Modules/_testcapi/float.c
Victor Stinner be5e8a0103
gh-110964: Remove private _PyArg functions (#110966)
Move the following private functions and structures to
pycore_modsupport.h internal C API:

* _PyArg_BadArgument()
* _PyArg_CheckPositional()
* _PyArg_NoKeywords()
* _PyArg_NoPositional()
* _PyArg_ParseStack()
* _PyArg_ParseStackAndKeywords()
* _PyArg_Parser structure
* _PyArg_UnpackKeywords()
* _PyArg_UnpackKeywordsWithVararg()
* _PyArg_UnpackStack()
* _Py_ANY_VARARGS()

Changes:

* Python/getargs.h now includes pycore_modsupport.h to export
  functions.
* clinic.py now adds pycore_modsupport.h when one of these functions
  is used.
* Add pycore_modsupport.h includes when a C extension uses one of
  these functions.
* Define Py_BUILD_CORE_MODULE in C extensions which now include
  directly or indirectly (via code generated by Argument Clinic)
  pycore_modsupport.h:

  * _csv
  * _curses_panel
  * _dbm
  * _gdbm
  * _multiprocessing.posixshmem
  * _sqlite.row
  * _statistics
  * grp
  * resource
  * syslog

* _testcapi: bad_get() no longer uses METH_FASTCALL calling
  convention but METH_VARARGS. Replace _PyArg_UnpackStack() with
  PyArg_ParseTuple().
* _testcapi: add PYTESTCAPI_NEED_INTERNAL_API macro which is defined
  by _testcapi sub-modules which need the internal C API
  (pycore_modsupport.h): exceptions.c, float.c, vectorcall.c,
  watchers.c.
* Remove Include/cpython/modsupport.h header file.
  Include/modsupport.h no longer includes the removed header file.
* Fix mypy clinic.py
2023-10-17 14:30:31 +02:00

115 lines
2.5 KiB
C

// clinic/float.c.h uses internal pycore_modsupport.h API
#define PYTESTCAPI_NEED_INTERNAL_API
#include "parts.h"
#include "clinic/float.c.h"
/*[clinic input]
module _testcapi
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=6361033e795369fc]*/
/*[clinic input]
_testcapi.float_pack
size: int
d: double
le: int
/
Test PyFloat_Pack2(), PyFloat_Pack4() and PyFloat_Pack8()
[clinic start generated code]*/
static PyObject *
_testcapi_float_pack_impl(PyObject *module, int size, double d, int le)
/*[clinic end generated code: output=7899bd98f8b6cb04 input=52c9115121999c98]*/
{
switch (size)
{
case 2:
{
char data[2];
if (PyFloat_Pack2(d, data, le) < 0) {
return NULL;
}
return PyBytes_FromStringAndSize(data, Py_ARRAY_LENGTH(data));
}
case 4:
{
char data[4];
if (PyFloat_Pack4(d, data, le) < 0) {
return NULL;
}
return PyBytes_FromStringAndSize(data, Py_ARRAY_LENGTH(data));
}
case 8:
{
char data[8];
if (PyFloat_Pack8(d, data, le) < 0) {
return NULL;
}
return PyBytes_FromStringAndSize(data, Py_ARRAY_LENGTH(data));
}
default: break;
}
PyErr_SetString(PyExc_ValueError, "size must 2, 4 or 8");
return NULL;
}
/*[clinic input]
_testcapi.float_unpack
data: str(accept={robuffer}, zeroes=True)
le: int
/
Test PyFloat_Unpack2(), PyFloat_Unpack4() and PyFloat_Unpack8()
[clinic start generated code]*/
static PyObject *
_testcapi_float_unpack_impl(PyObject *module, const char *data,
Py_ssize_t data_length, int le)
/*[clinic end generated code: output=617059f889ddbfe4 input=c095e4bb75a696cd]*/
{
assert(!PyErr_Occurred());
double d;
switch (data_length)
{
case 2:
d = PyFloat_Unpack2(data, le);
break;
case 4:
d = PyFloat_Unpack4(data, le);
break;
case 8:
d = PyFloat_Unpack8(data, le);
break;
default:
PyErr_SetString(PyExc_ValueError, "data length must 2, 4 or 8 bytes");
return NULL;
}
if (d == -1.0 && PyErr_Occurred()) {
return NULL;
}
return PyFloat_FromDouble(d);
}
static PyMethodDef test_methods[] = {
_TESTCAPI_FLOAT_PACK_METHODDEF
_TESTCAPI_FLOAT_UNPACK_METHODDEF
{NULL},
};
int
_PyTestCapi_Init_Float(PyObject *mod)
{
if (PyModule_AddFunctions(mod, test_methods) < 0) {
return -1;
}
return 0;
}