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37d0bf4289
* Add test_class_sh_property_non_owning.cpp,py
Failing:
```
__________________________________________________________ test_persistent_holder __________________________________________________________
def test_persistent_holder():
h = m.DataFieldsHolder(2)
> c = h.vec_at(0).core_fld
E RuntimeError: Non-owning holder (loaded_as_shared_ptr).
h = <pybind11_tests.class_sh_property_non_owning.DataFieldsHolder object at 0x7fabab516470>
test_class_sh_property_non_owning.py:6: RuntimeError
__________________________________________________________ test_temporary_holder ___________________________________________________________
def test_temporary_holder():
d = m.DataFieldsHolder(2).vec_at(1)
> c = d.core_fld
E RuntimeError: Non-owning holder (loaded_as_shared_ptr).
d = <pybind11_tests.class_sh_property_non_owning.DataField object at 0x7fabab548770>
test_class_sh_property_non_owning.py:13: RuntimeError
```
* Introduce `shared_ptr_from_python(responsible_parent)` and use in all `property_cpp_function`s with `const shared_ptr<T> &` arguments.
Tests are incomplete.
* Complete tests.
* Add comment for `smart_holder_type_caster_load<T>::shared_ptr_from_python`
69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
#include "pybind11/smart_holder.h"
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#include "pybind11_tests.h"
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#include <cstddef>
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#include <vector>
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namespace test_class_sh_property_non_owning {
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struct CoreField {
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explicit CoreField(int int_value = -99) : int_value{int_value} {}
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int int_value;
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};
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struct DataField {
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DataField(int i_value, int i_shared, int i_unique)
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: core_fld_value{i_value}, core_fld_shared_ptr{new CoreField{i_shared}},
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core_fld_raw_ptr{core_fld_shared_ptr.get()}, core_fld_unique_ptr{
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new CoreField{i_unique}} {}
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CoreField core_fld_value;
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std::shared_ptr<CoreField> core_fld_shared_ptr;
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CoreField *core_fld_raw_ptr;
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std::unique_ptr<CoreField> core_fld_unique_ptr;
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};
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struct DataFieldsHolder {
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private:
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std::vector<DataField> vec;
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public:
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DataFieldsHolder(std::size_t vec_size) {
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for (std::size_t i = 0; i < vec_size; i++) {
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int i11 = static_cast<int>(i) * 11;
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vec.push_back(DataField(13 + i11, 14 + i11, 15 + i11));
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}
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}
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DataField *vec_at(std::size_t index) {
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if (index >= vec.size()) {
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return nullptr;
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}
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return &vec[index];
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}
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};
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} // namespace test_class_sh_property_non_owning
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using namespace test_class_sh_property_non_owning;
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PYBIND11_SMART_HOLDER_TYPE_CASTERS(CoreField)
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PYBIND11_SMART_HOLDER_TYPE_CASTERS(DataField)
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PYBIND11_SMART_HOLDER_TYPE_CASTERS(DataFieldsHolder)
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TEST_SUBMODULE(class_sh_property_non_owning, m) {
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py::classh<CoreField>(m, "CoreField").def_readwrite("int_value", &CoreField::int_value);
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py::classh<DataField>(m, "DataField")
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.def_readonly("core_fld_value_ro", &DataField::core_fld_value)
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.def_readwrite("core_fld_value_rw", &DataField::core_fld_value)
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.def_readonly("core_fld_shared_ptr_ro", &DataField::core_fld_shared_ptr)
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.def_readwrite("core_fld_shared_ptr_rw", &DataField::core_fld_shared_ptr)
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.def_readonly("core_fld_raw_ptr_ro", &DataField::core_fld_raw_ptr)
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.def_readwrite("core_fld_raw_ptr_rw", &DataField::core_fld_raw_ptr)
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.def_readwrite("core_fld_unique_ptr_rw", &DataField::core_fld_unique_ptr);
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py::classh<DataFieldsHolder>(m, "DataFieldsHolder")
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.def(py::init<std::size_t>())
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.def("vec_at", &DataFieldsHolder::vec_at, py::return_value_policy::reference_internal);
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}
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