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Reinterpret detail::type_info::default_holder as "uses std::unique_ptr holder" (which is the original meaning, and compatible with the original smart_holder branch).

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Ralf W. Grosse-Kunstleve 2024-07-18 22:31:21 -07:00
parent cd4f5f6c5b
commit 58a1b75e43
2 changed files with 7 additions and 3 deletions
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5
include/pybind11/pybind11.h
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@ -1849,7 +1849,10 @@ public:
record.holder_size = sizeof(holder_type); record.holder_size = sizeof(holder_type);
record.init_instance = init_instance; record.init_instance = init_instance;
record.dealloc = dealloc; record.dealloc = dealloc;
record.default_holder = std::is_same<holder_type, pybindit::memory::smart_holder>::value;
// A more fitting name would be uses_unique_ptr_holder.
record.default_holder = detail::is_instantiation<std::unique_ptr, holder_type>::value;
#ifdef PYBIND11_HAVE_INTERNALS_WITH_SMART_HOLDER_SUPPORT #ifdef PYBIND11_HAVE_INTERNALS_WITH_SMART_HOLDER_SUPPORT
if (detail::is_instantiation<std::unique_ptr, holder_type>::value) { if (detail::is_instantiation<std::unique_ptr, holder_type>::value) {
record.holder_enum_v = detail::holder_enum_t::std_unique_ptr; record.holder_enum_v = detail::holder_enum_t::std_unique_ptr;

5
tests/test_class.cpp
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@ -211,11 +211,12 @@ TEST_SUBMODULE(class_, m) {
m.def("mismatched_holder_1", []() { m.def("mismatched_holder_1", []() {
auto mod = py::module_::import("__main__"); auto mod = py::module_::import("__main__");
py::class_<MismatchBase1, std::shared_ptr<MismatchBase1>>(mod, "MismatchBase1"); py::class_<MismatchBase1, std::shared_ptr<MismatchBase1>>(mod, "MismatchBase1");
py::class_<MismatchDerived1, MismatchBase1>(mod, "MismatchDerived1"); py::class_<MismatchDerived1, std::unique_ptr<MismatchDerived1>, MismatchBase1>(
mod, "MismatchDerived1");
}); });
m.def("mismatched_holder_2", []() { m.def("mismatched_holder_2", []() {
auto mod = py::module_::import("__main__"); auto mod = py::module_::import("__main__");
py::class_<MismatchBase2>(mod, "MismatchBase2"); py::class_<MismatchBase2, std::unique_ptr<MismatchBase2>>(mod, "MismatchBase2");
py::class_<MismatchDerived2, std::shared_ptr<MismatchDerived2>, MismatchBase2>( py::class_<MismatchDerived2, std::shared_ptr<MismatchDerived2>, MismatchBase2>(
mod, "MismatchDerived2"); mod, "MismatchDerived2");
}); });