mirror of
https://github.com/pybind/pybind11.git
synced 2026-03-14 20:27:47 +00:00
4638e017b6
rwgk reached this point with the help of ChatGPT: * https://chatgpt.com/share/68056498-7d94-8008-8ff0-232e2aba451c The only production code change in this commit is: ``` diff --git a/include/pybind11/detail/type_caster_base.h b/include/pybind11/detail/type_caster_base.h index d4f9a41e..f3d45301 100644 --- a/include/pybind11/detail/type_caster_base.h +++ b/include/pybind11/detail/type_caster_base.h @@ -776,6 +776,14 @@ struct load_helper : value_and_holder_helper { if (released_ptr) { return std::shared_ptr<T>(released_ptr, type_raw_ptr); } + auto *self_life_support + = dynamic_raw_ptr_cast_if_possible<trampoline_self_life_support>(type_raw_ptr); + if (self_life_support == nullptr) { + std::shared_ptr<void> void_shd_ptr = hld.template as_shared_ptr<void>(); + std::shared_ptr<T> to_be_released(void_shd_ptr, type_raw_ptr); + vptr_gd_ptr->released_ptr = to_be_released; + return to_be_released; + } std::shared_ptr<T> to_be_released( type_raw_ptr, shared_ptr_trampoline_self_life_support(loaded_v_h.inst)); vptr_gd_ptr->released_ptr = to_be_released; ```
64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
// Copyright (c) 2025 The Pybind Development Team.
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// All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "pybind11_tests.h"
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#include <memory>
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namespace pybind11_tests {
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namespace class_sh_trampoline_weak_ptr {
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struct VirtBase {
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virtual ~VirtBase() = default;
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virtual int get_code() { return 100; }
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};
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struct PyVirtBase : VirtBase /*, py::trampoline_self_life_support */ {
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using VirtBase::VirtBase;
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int get_code() override { PYBIND11_OVERRIDE(int, VirtBase, get_code); }
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~PyVirtBase() override {
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fflush(stderr);
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printf("\nLOOOK ~PyVirtBase()\n");
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fflush(stdout);
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}
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};
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struct WpOwner {
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void set_wp(const std::shared_ptr<VirtBase> &sp) { wp = sp; }
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int get_code() {
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auto sp = wp.lock();
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if (!sp) {
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return -999;
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}
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return sp->get_code();
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}
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private:
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std::weak_ptr<VirtBase> wp;
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};
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std::shared_ptr<VirtBase> pass_through_sp_VirtBase(const std::shared_ptr<VirtBase> &sp) {
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return sp;
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}
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} // namespace class_sh_trampoline_weak_ptr
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} // namespace pybind11_tests
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using namespace pybind11_tests::class_sh_trampoline_weak_ptr;
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TEST_SUBMODULE(class_sh_trampoline_weak_ptr, m) {
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py::classh<VirtBase, PyVirtBase>(m, "VirtBase")
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.def(py::init<>())
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.def("get_code", &VirtBase::get_code);
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py::classh<WpOwner>(m, "WpOwner")
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.def(py::init<>())
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.def("set_wp", &WpOwner::set_wp)
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.def("get_code", &WpOwner::get_code);
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m.def("pass_through_sp_VirtBase", pass_through_sp_VirtBase);
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}
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