pybind11/tests/test_class_sh_inheritance.cpp

106 lines
3.8 KiB
C++

#include <pybind11/smart_holder.h>
#include "pybind11_tests.h"
#include <memory>
namespace pybind11_tests {
namespace class_sh_inheritance {
template <int Id>
struct base_template {
base_template() : base_id(Id) {}
virtual ~base_template() = default;
virtual int id() const { return base_id; }
int base_id;
// Some compilers complain about implicitly defined versions of some of the following:
base_template(const base_template &) = default;
base_template(base_template &&) noexcept = default;
base_template &operator=(const base_template &) = default;
base_template &operator=(base_template &&) noexcept = default;
};
using base = base_template<100>;
struct drvd : base {
int id() const override { return 2 * base_id; }
};
// clang-format off
inline drvd *rtrn_mptr_drvd() { return new drvd; }
inline base *rtrn_mptr_drvd_up_cast() { return new drvd; }
inline int pass_cptr_base(base const *b) { return b->id() + 11; }
inline int pass_cptr_drvd(drvd const *d) { return d->id() + 12; }
inline std::shared_ptr<drvd> rtrn_shmp_drvd() { return std::make_shared<drvd>(); }
inline std::shared_ptr<base> rtrn_shmp_drvd_up_cast() { return std::make_shared<drvd>(); }
inline int pass_shcp_base(const std::shared_ptr<base const>& b) { return b->id() + 21; }
inline int pass_shcp_drvd(const std::shared_ptr<drvd const>& d) { return d->id() + 22; }
// clang-format on
using base1 = base_template<110>;
using base2 = base_template<120>;
// Not reusing base here because it would interfere with the single-inheritance test.
struct drvd2 : base1, base2 {
int id() const override { return 3 * base1::base_id + 4 * base2::base_id; }
};
// clang-format off
inline drvd2 *rtrn_mptr_drvd2() { return new drvd2; }
inline base1 *rtrn_mptr_drvd2_up_cast1() { return new drvd2; }
inline base2 *rtrn_mptr_drvd2_up_cast2() { return new drvd2; }
inline int pass_cptr_base1(base1 const *b) { return b->id() + 21; }
inline int pass_cptr_base2(base2 const *b) { return b->id() + 22; }
inline int pass_cptr_drvd2(drvd2 const *d) { return d->id() + 23; }
// clang-format on
} // namespace class_sh_inheritance
} // namespace pybind11_tests
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_inheritance::base)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_inheritance::drvd)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_inheritance::base1)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_inheritance::base2)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_inheritance::drvd2)
namespace pybind11_tests {
namespace class_sh_inheritance {
TEST_SUBMODULE(class_sh_inheritance, m) {
py::classh<base>(m, "base");
py::classh<drvd, base>(m, "drvd");
auto rvto = py::return_value_policy::take_ownership;
m.def("rtrn_mptr_drvd", rtrn_mptr_drvd, rvto);
m.def("rtrn_mptr_drvd_up_cast", rtrn_mptr_drvd_up_cast, rvto);
m.def("pass_cptr_base", pass_cptr_base);
m.def("pass_cptr_drvd", pass_cptr_drvd);
m.def("rtrn_shmp_drvd", rtrn_shmp_drvd);
m.def("rtrn_shmp_drvd_up_cast", rtrn_shmp_drvd_up_cast);
m.def("pass_shcp_base", pass_shcp_base);
m.def("pass_shcp_drvd", pass_shcp_drvd);
// __init__ needed for Python inheritance.
py::classh<base1>(m, "base1").def(py::init<>());
py::classh<base2>(m, "base2").def(py::init<>());
py::classh<drvd2, base1, base2>(m, "drvd2");
m.def("rtrn_mptr_drvd2", rtrn_mptr_drvd2, rvto);
m.def("rtrn_mptr_drvd2_up_cast1", rtrn_mptr_drvd2_up_cast1, rvto);
m.def("rtrn_mptr_drvd2_up_cast2", rtrn_mptr_drvd2_up_cast2, rvto);
m.def("pass_cptr_base1", pass_cptr_base1);
m.def("pass_cptr_base2", pass_cptr_base2);
m.def("pass_cptr_drvd2", pass_cptr_drvd2);
}
} // namespace class_sh_inheritance
} // namespace pybind11_tests