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// clinic/vectorcall.c.h uses internal pycore_modsupport.h API
#define PYTESTCAPI_NEED_INTERNAL_API
#include "parts.h"
#include "clinic/vectorcall.c.h"
#include <stddef.h> // offsetof
/*[clinic input]
module _testcapi
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=6361033e795369fc]*/
/* Test PEP 590 - Vectorcall */
static int
fastcall_args(PyObject *args, PyObject ***stack, Py_ssize_t *nargs)
{
if (args == Py_None) {
*stack = NULL;
*nargs = 0;
}
else if (PyTuple_Check(args)) {
*stack = ((PyTupleObject *)args)->ob_item;
*nargs = PyTuple_GET_SIZE(args);
}
else {
PyErr_SetString(PyExc_TypeError, "args must be None or a tuple");
return -1;
}
return 0;
}
/*[clinic input]
_testcapi.pyobject_fastcalldict
func: object
func_args: object
kwargs: object
/
[clinic start generated code]*/
static PyObject *
_testcapi_pyobject_fastcalldict_impl(PyObject *module, PyObject *func,
PyObject *func_args, PyObject *kwargs)
/*[clinic end generated code: output=35902ece94de4418 input=b9c0196ca7d5f9e4]*/
{
PyObject **stack;
Py_ssize_t nargs;
if (fastcall_args(func_args, &stack, &nargs) < 0) {
return NULL;
}
if (kwargs == Py_None) {
kwargs = NULL;
}
else if (!PyDict_Check(kwargs)) {
PyErr_SetString(PyExc_TypeError, "kwnames must be None or a dict");
return NULL;
}
return PyObject_VectorcallDict(func, stack, nargs, kwargs);
}
/*[clinic input]
_testcapi.pyobject_vectorcall
func: object
func_args: object
kwnames: object
/
[clinic start generated code]*/
static PyObject *
_testcapi_pyobject_vectorcall_impl(PyObject *module, PyObject *func,
PyObject *func_args, PyObject *kwnames)
/*[clinic end generated code: output=ff77245bc6afe0d8 input=a0668dfef625764c]*/
{
PyObject **stack;
Py_ssize_t nargs, nkw;
if (fastcall_args(func_args, &stack, &nargs) < 0) {
return NULL;
}
if (kwnames == Py_None) {
kwnames = NULL;
}
else if (PyTuple_Check(kwnames)) {
nkw = PyTuple_GET_SIZE(kwnames);
if (nargs < nkw) {
PyErr_SetString(PyExc_ValueError, "kwnames longer than args");
return NULL;
}
nargs -= nkw;
}
else {
PyErr_SetString(PyExc_TypeError, "kwnames must be None or a tuple");
return NULL;
}
return PyObject_Vectorcall(func, stack, nargs, kwnames);
}
static PyObject *
override_vectorcall(PyObject *callable, PyObject *const *args, size_t nargsf,
PyObject *kwnames)
{
return PyUnicode_FromString("overridden");
}
static PyObject *
function_setvectorcall(PyObject *self, PyObject *func)
{
if (!PyFunction_Check(func)) {
PyErr_SetString(PyExc_TypeError, "'func' must be a function");
return NULL;
}
PyFunction_SetVectorcall((PyFunctionObject *)func, (vectorcallfunc)override_vectorcall);
Py_RETURN_NONE;
}
/*[clinic input]
_testcapi.pyvectorcall_call
func: object
argstuple: object
kwargs: object = NULL
/
[clinic start generated code]*/
static PyObject *
_testcapi_pyvectorcall_call_impl(PyObject *module, PyObject *func,
PyObject *argstuple, PyObject *kwargs)
/*[clinic end generated code: output=809046fe78511306 input=4376ee7cabd698ce]*/
{
if (!PyTuple_Check(argstuple)) {
PyErr_SetString(PyExc_TypeError, "args must be a tuple");
return NULL;
}
if (kwargs != NULL && !PyDict_Check(kwargs)) {
PyErr_SetString(PyExc_TypeError, "kwargs must be a dict");
return NULL;
}
return PyVectorcall_Call(func, argstuple, kwargs);
}
PyObject *
VectorCallClass_tpcall(PyObject *self, PyObject *args, PyObject *kwargs) {
return PyUnicode_FromString("tp_call");
}
PyObject *
VectorCallClass_vectorcall(PyObject *callable,
PyObject *const *args,
size_t nargsf,
PyObject *kwnames) {
return PyUnicode_FromString("vectorcall");
}
/*[clinic input]
class _testcapi.VectorCallClass "PyObject *" "&PyType_Type"
[clinic start generated code]*/
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=95c63c1a47f9a995]*/
/*[clinic input]
@permit_long_summary
_testcapi.VectorCallClass.set_vectorcall
type: object(subclass_of="&PyType_Type", type="PyTypeObject *")
/
Set self's vectorcall function for `type` to one that returns "vectorcall"
[clinic start generated code]*/
static PyObject *
_testcapi_VectorCallClass_set_vectorcall_impl(PyObject *self,
PyTypeObject *type)
/*[clinic end generated code: output=b37f0466f15da903 input=170fefc7ee77fd36]*/
{
if (!PyObject_TypeCheck(self, type)) {
return PyErr_Format(
PyExc_TypeError,
"expected %N instance",
type);
}
if (!type->tp_vectorcall_offset) {
return PyErr_Format(
PyExc_TypeError,
"type %N has no vectorcall offset",
type);
}
*(vectorcallfunc*)((char*)self + type->tp_vectorcall_offset) = (
VectorCallClass_vectorcall);
Py_RETURN_NONE;
}
PyMethodDef VectorCallClass_methods[] = {
_TESTCAPI_VECTORCALLCLASS_SET_VECTORCALL_METHODDEF
{NULL, NULL}
};
PyMemberDef VectorCallClass_members[] = {
{"__vectorcalloffset__", Py_T_PYSSIZET, 0/* set later */, Py_READONLY},
{NULL}
};
PyType_Slot VectorCallClass_slots[] = {
{Py_tp_call, VectorCallClass_tpcall},
{Py_tp_members, VectorCallClass_members},
{Py_tp_methods, VectorCallClass_methods},
{0},
};
/*[clinic input]
_testcapi.make_vectorcall_class
base: object(subclass_of="&PyType_Type", type="PyTypeObject *") = NULL
/
Create a class whose instances return "tpcall" when called.
When the "set_vectorcall" method is called on an instance, a vectorcall
function that returns "vectorcall" will be installed.
[clinic start generated code]*/
static PyObject *
_testcapi_make_vectorcall_class_impl(PyObject *module, PyTypeObject *base)
/*[clinic end generated code: output=16dcfc3062ddf968 input=f72e01ccf52de2b4]*/
{
if (!base) {
base = (PyTypeObject *)&PyBaseObject_Type;
}
VectorCallClass_members[0].offset = base->tp_basicsize;
PyType_Spec spec = {
.name = "_testcapi.VectorcallClass",
.basicsize = (int)(base->tp_basicsize + sizeof(vectorcallfunc)),
.flags = Py_TPFLAGS_DEFAULT
| Py_TPFLAGS_HAVE_VECTORCALL
| Py_TPFLAGS_BASETYPE,
.slots = VectorCallClass_slots,
};
return PyType_FromSpecWithBases(&spec, (PyObject *)base);
}
/*[clinic input]
_testcapi.has_vectorcall_flag -> bool
type: object(subclass_of="&PyType_Type", type="PyTypeObject *")
/
Return true iff Py_TPFLAGS_HAVE_VECTORCALL is set on the class.
[clinic start generated code]*/
static int
_testcapi_has_vectorcall_flag_impl(PyObject *module, PyTypeObject *type)
/*[clinic end generated code: output=3ae8d1374388c671 input=8eee492ac548749e]*/
{
return PyType_HasFeature(type, Py_TPFLAGS_HAVE_VECTORCALL);
}
static PyMethodDef TestMethods[] = {
_TESTCAPI_PYOBJECT_FASTCALLDICT_METHODDEF
_TESTCAPI_PYOBJECT_VECTORCALL_METHODDEF
{"function_setvectorcall", function_setvectorcall, METH_O},
_TESTCAPI_PYVECTORCALL_CALL_METHODDEF
_TESTCAPI_MAKE_VECTORCALL_CLASS_METHODDEF
_TESTCAPI_HAS_VECTORCALL_FLAG_METHODDEF
{NULL},
};
typedef struct {
PyObject_HEAD
vectorcallfunc vectorcall;
} MethodDescriptorObject;
static PyObject *
MethodDescriptor_vectorcall(PyObject *callable, PyObject *const *args,
size_t nargsf, PyObject *kwnames)
{
/* True if using the vectorcall function in MethodDescriptorObject
* but False for MethodDescriptor2Object */
MethodDescriptorObject *md = (MethodDescriptorObject *)callable;
return PyBool_FromLong(md->vectorcall != NULL);
}
static PyObject *
MethodDescriptor_new(PyTypeObject* type, PyObject* args, PyObject *kw)
{
MethodDescriptorObject *op = (MethodDescriptorObject *)type->tp_alloc(type, 0);
op->vectorcall = MethodDescriptor_vectorcall;
return (PyObject *)op;
}
static PyObject *
func_descr_get(PyObject *func, PyObject *obj, PyObject *type)
{
if (obj == Py_None || obj == NULL) {
return Py_NewRef(func);
}
return PyMethod_New(func, obj);
}
static PyObject *
nop_descr_get(PyObject *func, PyObject *obj, PyObject *type)
{
return Py_NewRef(func);
}
static PyObject *
call_return_args(PyObject *self, PyObject *args, PyObject *kwargs)
{
return Py_NewRef(args);
}
static PyTypeObject MethodDescriptorBase_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"MethodDescriptorBase",
sizeof(MethodDescriptorObject),
.tp_new = MethodDescriptor_new,
.tp_call = PyVectorcall_Call,
.tp_vectorcall_offset = offsetof(MethodDescriptorObject, vectorcall),
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
Py_TPFLAGS_METHOD_DESCRIPTOR | Py_TPFLAGS_HAVE_VECTORCALL,
.tp_descr_get = func_descr_get,
};
static PyTypeObject MethodDescriptorDerived_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"MethodDescriptorDerived",
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
};
static PyTypeObject MethodDescriptorNopGet_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"MethodDescriptorNopGet",
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
.tp_call = call_return_args,
.tp_descr_get = nop_descr_get,
};
typedef struct {
MethodDescriptorObject base;
vectorcallfunc vectorcall;
} MethodDescriptor2Object;
static PyObject *
MethodDescriptor2_new(PyTypeObject* type, PyObject* args, PyObject *kw)
{
MethodDescriptor2Object *op = PyObject_New(MethodDescriptor2Object, type);
if (op == NULL) {
return NULL;
}
op->base.vectorcall = NULL;
op->vectorcall = MethodDescriptor_vectorcall;
return (PyObject *)op;
}
static PyTypeObject MethodDescriptor2_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"MethodDescriptor2",
sizeof(MethodDescriptor2Object),
.tp_new = MethodDescriptor2_new,
.tp_call = PyVectorcall_Call,
.tp_vectorcall_offset = offsetof(MethodDescriptor2Object, vectorcall),
.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_VECTORCALL,
};
int
_PyTestCapi_Init_Vectorcall(PyObject *m) {
if (PyModule_AddFunctions(m, TestMethods) < 0) {
return -1;
}
if (PyType_Ready(&MethodDescriptorBase_Type) < 0) {
return -1;
}
if (PyModule_AddType(m, &MethodDescriptorBase_Type) < 0) {
return -1;
}
MethodDescriptorDerived_Type.tp_base = &MethodDescriptorBase_Type;
if (PyType_Ready(&MethodDescriptorDerived_Type) < 0) {
return -1;
}
if (PyModule_AddType(m, &MethodDescriptorDerived_Type) < 0) {
return -1;
}
MethodDescriptorNopGet_Type.tp_base = &MethodDescriptorBase_Type;
if (PyType_Ready(&MethodDescriptorNopGet_Type) < 0) {
return -1;
}
if (PyModule_AddType(m, &MethodDescriptorNopGet_Type) < 0) {
return -1;
}
MethodDescriptor2_Type.tp_base = &MethodDescriptorBase_Type;
if (PyType_Ready(&MethodDescriptor2_Type) < 0) {
return -1;
}
if (PyModule_AddType(m, &MethodDescriptor2_Type) < 0) {
return -1;
}
return 0;
}