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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| // Copyright (c) 2024 The pybind Community. | ||
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| #pragma once | ||
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| #include <pybind11/pytypes.h> | ||
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| #include "common.h" | ||
| #include "internals.h" | ||
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| #include <typeinfo> | ||
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| PYBIND11_NAMESPACE_BEGIN(PYBIND11_NAMESPACE) | ||
| PYBIND11_NAMESPACE_BEGIN(detail) | ||
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| // Forward declaration needed here: Refactoring opportunity. | ||
| extern "C" inline PyObject *pybind11_object_new(PyTypeObject *type, PyObject *, PyObject *); | ||
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| inline bool type_is_managed_by_our_internals(PyTypeObject *type_obj) { | ||
| #if defined(PYPY_VERSION) | ||
| auto &internals = get_internals(); | ||
| return bool(internals.registered_types_py.find(type_obj) | ||
| != internals.registered_types_py.end()); | ||
| #else | ||
| return bool(type_obj->tp_new == pybind11_object_new); | ||
| #endif | ||
| } | ||
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| inline bool is_instance_method_of_type(PyTypeObject *type_obj, PyObject *attr_name) { | ||
| PyObject *descr = _PyType_Lookup(type_obj, attr_name); | ||
| return bool((descr != nullptr) && PyInstanceMethod_Check(descr)); | ||
| } | ||
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| inline object try_get_cpp_conduit_method(PyObject *obj) { | ||
| if (PyType_Check(obj)) { | ||
| return object(); | ||
| } | ||
| PyTypeObject *type_obj = Py_TYPE(obj); | ||
| str attr_name("_pybind11_conduit_v1_"); | ||
| bool assumed_to_be_callable = false; | ||
| if (type_is_managed_by_our_internals(type_obj)) { | ||
| if (!is_instance_method_of_type(type_obj, attr_name.ptr())) { | ||
| return object(); | ||
| } | ||
| assumed_to_be_callable = true; | ||
| } | ||
| PyObject *method = PyObject_GetAttr(obj, attr_name.ptr()); | ||
| if (method == nullptr) { | ||
| PyErr_Clear(); | ||
| return object(); | ||
| } | ||
| if (!assumed_to_be_callable && PyCallable_Check(method) == 0) { | ||
| Py_DECREF(method); | ||
| return object(); | ||
| } | ||
| return reinterpret_steal<object>(method); | ||
| } | ||
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| inline void *try_raw_pointer_ephemeral_from_cpp_conduit(handle src, | ||
| const std::type_info *cpp_type_info) { | ||
| object method = try_get_cpp_conduit_method(src.ptr()); | ||
| if (method) { | ||
| capsule cpp_type_info_capsule(const_cast<void *>(static_cast<const void *>(cpp_type_info)), | ||
| typeid(std::type_info).name()); | ||
| object cpp_conduit = method(bytes(PYBIND11_PLATFORM_ABI_ID), | ||
| cpp_type_info_capsule, | ||
| bytes("raw_pointer_ephemeral")); | ||
| if (isinstance<capsule>(cpp_conduit)) { | ||
| return reinterpret_borrow<capsule>(cpp_conduit).get_pointer(); | ||
| } | ||
| } | ||
| return nullptr; | ||
| } | ||
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| #define PYBIND11_HAS_CPP_CONDUIT 1 | ||
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| PYBIND11_NAMESPACE_END(detail) | ||
| PYBIND11_NAMESPACE_END(PYBIND11_NAMESPACE) |
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