Files
pytorch/torch/csrc/autograd/python_cpp_function.h
Pritam Damania 2b221a9599 Remove PyCFunction casts as much as possible. (#46227)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/46227

Follow up from https://github.com/pytorch/pytorch/issues/45419, in
this PR I've removed as many PyCFunction casts as I could from the codebase.

The only ones I didn't remove were the ones with `METH_VARARGS | METH_KEYWORDS`
which have 3 parameters instead of 2 and had to be casted. Example: `
{"copy_", (PyCFunction)(void(*)(void))THPStorage_(copy_), METH_VARARGS |
METH_KEYWORDS, nullptr},`
ghstack-source-id: 114632704

Test Plan: waitforbuildbot

Reviewed By: albanD

Differential Revision: D24269435

fbshipit-source-id: 025cfd43a9a2a3e59f6b2951c1a78749193d77cf
2020-10-20 15:01:51 -07:00

67 lines
2.4 KiB
C++

#pragma once
#include <torch/csrc/python_headers.h>
#include <memory>
#include <typeinfo>
#include <torch/csrc/autograd/function.h>
#include <torch/csrc/utils/object_ptr.h>
#include <torch/csrc/Exceptions.h>
namespace torch { namespace autograd {
struct THPCppFunction {
PyObject_HEAD
std::shared_ptr<Node> cdata;
};
template<typename Ctor>
PyObject* CppFunction_pynew(PyTypeObject *type, PyObject *args, PyObject *kwds)
{
THPObjectPtr obj(type->tp_alloc(type, 0));
if (!obj) return nullptr;
THPCppFunction* f = (THPCppFunction*)obj.get();
HANDLE_TH_ERRORS
new (&f->cdata) std::shared_ptr<Node>(Ctor()(args));
END_HANDLE_TH_ERRORS
if (!f->cdata) {
return nullptr;
}
return obj.release();
}
#define THP_FUNCTION_DEFAULT_METHODS \
{(char*)"_register_hook_dict", THPCppFunction_register_hook_dict, METH_O, nullptr}, \
{(char*)"register_hook", THPCppFunction_register_hook, METH_O, nullptr}, \
{(char*)"name", THPCppFunction_name, METH_NOARGS, nullptr}
#define THP_FUNCTION_DEFAULT_PROPERTIES \
{(char*)"next_functions", (getter)THPCppFunction_next_functions, nullptr, nullptr, nullptr}, \
{(char*)"requires_grad", (getter)THPCppFunction_requires_grad, nullptr, nullptr, nullptr}, \
{(char*)"metadata", (getter)THPCppFunction_metadata, nullptr, nullptr, nullptr}
PyObject* THPCppFunction_next_functions(THPCppFunction* self, PyObject* hook);
PyObject* THPCppFunction_metadata(THPCppFunction *self, void *_unused);
PyObject* THPCppFunction_requires_grad(THPCppFunction* self, void *_unused);
PyObject* THPCppFunction_register_hook_dict(PyObject* self, PyObject* _var);
PyObject* THPCppFunction_register_hook(PyObject* self, PyObject* hook);
PyObject* THPCppFunction_name(PyObject* self, PyObject *noargs);
PyTypeObject* _initFunctionPyTypeObject(PyTypeObject& type, const char* name,
PyGetSetDef* function_properties, PyMethodDef* function_methods);
PyObject* registerFunctionHook(Node& fn, PyObject* hook);
template<typename Ctor>
PyTypeObject* createForwardFunctionPyTypeObject(PyTypeObject& type, const char* name,
PyGetSetDef* function_properties=nullptr, PyMethodDef* function_methods=nullptr)
{
type.tp_new = &CppFunction_pynew<Ctor>;
return _initFunctionPyTypeObject(type, name, function_properties, function_methods);
}
void registerCppFunction(const std::type_info& type, PyTypeObject* pytype);
PyObject* functionToPyObject(const std::shared_ptr<Node>& cdata);
}} // namespace torch::autograd