mirror of
https://github.com/pybind/pybind11.git
synced 2024-12-01 17:37:15 +00:00
01b6ccb7fa
* Rename detail/smart_holder_poc.h -> struct_smart_holder.h * Establish (empty) tests/pure_cpp/smart_holder_poc.h * Move code guarded by `PYBIND11_TESTS_PURE_CPP_SMART_HOLDER_POC_TEST_CPP` from struct_smart_holder.h to tests/pure_cpp/smart_holder_poc.h
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
// Copyright (c) 2020-2024 The Pybind Development Team.
|
|
// All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#pragma once
|
|
|
|
#include "pybind11/detail/struct_smart_holder.h"
|
|
|
|
namespace pybindit {
|
|
namespace memory {
|
|
namespace smart_holder_poc { // Proof-of-Concept implementations.
|
|
|
|
template <typename T>
|
|
T &as_lvalue_ref(const smart_holder &hld) {
|
|
static const char *context = "as_lvalue_ref";
|
|
hld.ensure_is_populated(context);
|
|
hld.ensure_has_pointee(context);
|
|
return *hld.as_raw_ptr_unowned<T>();
|
|
}
|
|
|
|
template <typename T>
|
|
T &&as_rvalue_ref(const smart_holder &hld) {
|
|
static const char *context = "as_rvalue_ref";
|
|
hld.ensure_is_populated(context);
|
|
hld.ensure_has_pointee(context);
|
|
return std::move(*hld.as_raw_ptr_unowned<T>());
|
|
}
|
|
|
|
template <typename T>
|
|
T *as_raw_ptr_release_ownership(smart_holder &hld,
|
|
const char *context = "as_raw_ptr_release_ownership") {
|
|
hld.ensure_can_release_ownership(context);
|
|
T *raw_ptr = hld.as_raw_ptr_unowned<T>();
|
|
hld.release_ownership();
|
|
return raw_ptr;
|
|
}
|
|
|
|
template <typename T, typename D = std::default_delete<T>>
|
|
std::unique_ptr<T, D> as_unique_ptr(smart_holder &hld) {
|
|
static const char *context = "as_unique_ptr";
|
|
hld.ensure_compatible_rtti_uqp_del<T, D>(context);
|
|
hld.ensure_use_count_1(context);
|
|
T *raw_ptr = hld.as_raw_ptr_unowned<T>();
|
|
hld.release_ownership();
|
|
// KNOWN DEFECT (see PR #4850): Does not copy the deleter.
|
|
return std::unique_ptr<T, D>(raw_ptr);
|
|
}
|
|
|
|
} // namespace smart_holder_poc
|
|
} // namespace memory
|
|
} // namespace pybindit
|