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This is a modified version of https://github.com/pytorch/pytorch/pull/130341 that preserve support for older pybind version. Pull Request resolved: https://github.com/pytorch/pytorch/pull/136370 Approved by: https://github.com/Skylion007, https://github.com/malfet
65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
#pragma once
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#include <pybind11/pybind11.h>
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#include <pybind11/stl.h>
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#include <torch/csrc/jit/api/module.h>
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#include <torch/csrc/utils/pybind.h>
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#include <tuple>
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namespace py = pybind11;
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namespace torch::jit {
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inline std::optional<Module> as_module(py::handle obj) {
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#if IS_PYBIND_2_13_PLUS
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PYBIND11_CONSTINIT static py::gil_safe_call_once_and_store<py::object>
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storage;
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auto& ScriptModule =
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storage
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.call_once_and_store_result([]() -> py::object {
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return py::module_::import("torch.jit").attr("ScriptModule");
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})
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.get_stored();
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#else
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static py::handle ScriptModule =
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py::module::import("torch.jit").attr("ScriptModule");
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#endif
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if (py::isinstance(obj, ScriptModule)) {
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return py::cast<Module>(obj.attr("_c"));
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}
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return std::nullopt;
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}
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inline std::optional<Object> as_object(py::handle obj) {
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#if IS_PYBIND_2_13_PLUS
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PYBIND11_CONSTINIT static py::gil_safe_call_once_and_store<
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std::tuple<py::object, py::object>>
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storage;
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auto& [ScriptObject, RecursiveScriptClass] =
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storage
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.call_once_and_store_result(
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[]() -> std::tuple<py::object, py::object> {
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return {
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py::module_::import("torch").attr("ScriptObject"),
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py::module_::import("torch.jit")
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.attr("RecursiveScriptClass")};
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})
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.get_stored();
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#else
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static py::handle ScriptObject =
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py::module::import("torch").attr("ScriptObject");
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static py::handle RecursiveScriptClass =
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py::module::import("torch.jit").attr("RecursiveScriptClass");
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#endif
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if (py::isinstance(obj, ScriptObject)) {
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return py::cast<Object>(obj);
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}
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if (py::isinstance(obj, RecursiveScriptClass)) {
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return py::cast<Object>(obj.attr("_c"));
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}
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return std::nullopt;
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}
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} // namespace torch::jit
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