Files
pytorch/functorch/csrc/dim/python_variable_simple.h
PyTorch MergeBot ae5be038a6 Revert "Delete functorch C extension entirely. (#163340)"
This reverts commit 1faf6367e396b1d0894e8735912a47ac465f469d.

Reverted https://github.com/pytorch/pytorch/pull/163340 on behalf of https://github.com/wdvr due to temporary revert to pull out #162659 ([comment](https://github.com/pytorch/pytorch/pull/163340#issuecomment-3317105243))
2025-09-22 06:20:04 +00:00

50 lines
1.5 KiB
C

// Copyright (c) Facebook, Inc. and its affiliates.
// All rights reserved.
//
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree.
#pragma once
// note: pytorch's python variable simple includes pybind which conflicts with minpybind
// so this file just reproduces the minimal API needed to extract Tensors from python objects.
#include <torch/csrc/python_headers.h>
#include <ATen/core/Tensor.h>
#include <torch/csrc/Export.h>
// Python object that backs torch.autograd.Variable
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-member-init)
struct THPVariable {
PyObject_HEAD;
// Payload
c10::MaybeOwned<at::Tensor> cdata;
// Hooks to be run on backwards pass (corresponds to Python attr
// '_backwards_hooks', set by 'register_hook')
PyObject* backward_hooks = nullptr;
};
TORCH_PYTHON_API extern PyObject *THPVariableClass;
TORCH_PYTHON_API extern PyObject *ParameterClass;
TORCH_PYTHON_API PyObject * THPVariable_Wrap(const at::TensorBase& var);
inline bool THPVariable_Check(PyObject *obj)
{
if (!THPVariableClass)
return false;
const auto result = PyObject_IsInstance(obj, THPVariableClass);
AT_ASSERT(result != -1);
return result;
}
inline const at::Tensor& THPVariable_Unpack(THPVariable* var) {
return *var->cdata;
}
inline const at::Tensor& THPVariable_Unpack(PyObject* obj) {
return THPVariable_Unpack(reinterpret_cast<THPVariable*>(obj));
}
TORCH_PYTHON_API c10::impl::PyInterpreter* getPyInterpreter();