pybind11/tests/test_class_sh_factory_constructors.cpp
Ralf W. Grosse-Kunstleve 9be8d84b1c [smart_holder] Introduce PYBIND11_SMART_HOLDER_DISABLE option. (#5348)
* Step 1: Establish new `PYBIND11_SMART_HOLDER_ENABLED` macro, but only under include/pybind11/

At the stage `PYBIND11_HAS_INTERNALS_WITH_SMART_HOLDER_SUPPORT` and `PYBIND11_SMART_HOLDER_ENABLED` are still equivalent.

* Systematically replace all `PYBIND11_HAS_INTERNALS_WITH_SMART_HOLDER_SUPPORT` with `PYBIND11_SMART_HOLDER_ENABLED` under tests/ and ubench/

As at the previous stage, `PYBIND11_HAS_INTERNALS_WITH_SMART_HOLDER_SUPPORT` and `PYBIND11_SMART_HOLDER_ENABLED` are still equivalent.

* Introduce `PYBIND11_SMART_HOLDER_DISABLE` option.

* `#ifdef` out entire `wrap()` function to avoid `unused-parameter` warning-as-error under macos-13

```
/Users/runner/work/pybind11/pybind11/tests/test_class_sh_trampoline_basic.cpp:67:23: error: unused parameter 'm' [-Werror,-Wunused-parameter]
void wrap(py::module_ m, const char *py_class_name) {
                      ^
/Users/runner/work/pybind11/pybind11/tests/test_class_sh_trampoline_basic.cpp:67:38: error: unused parameter 'py_class_name' [-Werror,-Wunused-parameter]
void wrap(py::module_ m, const char *py_class_name) {
                                     ^
2 errors generated.
```
2024-09-01 18:29:55 -07:00

188 lines
7.7 KiB
C++

#include <pybind11/smart_holder.h>
#include "pybind11_tests.h"
#include <memory>
#include <string>
namespace pybind11_tests {
namespace class_sh_factory_constructors {
template <int> // Using int as a trick to easily generate a series of types.
struct atyp { // Short for "any type".
std::string mtxt;
};
template <typename T>
std::string get_mtxt(const T &obj) {
return obj.mtxt;
}
using atyp_valu = atyp<0x0>;
using atyp_rref = atyp<0x1>;
using atyp_cref = atyp<0x2>;
using atyp_mref = atyp<0x3>;
using atyp_cptr = atyp<0x4>;
using atyp_mptr = atyp<0x5>;
using atyp_shmp = atyp<0x6>;
using atyp_shcp = atyp<0x7>;
using atyp_uqmp = atyp<0x8>;
using atyp_uqcp = atyp<0x9>;
using atyp_udmp = atyp<0xA>;
using atyp_udcp = atyp<0xB>;
// clang-format off
atyp_valu rtrn_valu() { atyp_valu obj{"Valu"}; return obj; }
atyp_rref&& rtrn_rref() { static atyp_rref obj; obj.mtxt = "Rref"; return std::move(obj); }
atyp_cref const& rtrn_cref() { static atyp_cref obj; obj.mtxt = "Cref"; return obj; }
atyp_mref& rtrn_mref() { static atyp_mref obj; obj.mtxt = "Mref"; return obj; }
atyp_cptr const* rtrn_cptr() { return new atyp_cptr{"Cptr"}; }
atyp_mptr* rtrn_mptr() { return new atyp_mptr{"Mptr"}; }
std::shared_ptr<atyp_shmp> rtrn_shmp() { return std::make_shared<atyp_shmp>(atyp_shmp{"Shmp"}); }
std::shared_ptr<atyp_shcp const> rtrn_shcp() { return std::shared_ptr<atyp_shcp const>(new atyp_shcp{"Shcp"}); }
std::unique_ptr<atyp_uqmp> rtrn_uqmp() { return std::unique_ptr<atyp_uqmp >(new atyp_uqmp{"Uqmp"}); }
std::unique_ptr<atyp_uqcp const> rtrn_uqcp() { return std::unique_ptr<atyp_uqcp const>(new atyp_uqcp{"Uqcp"}); }
struct sddm : std::default_delete<atyp_udmp > {};
struct sddc : std::default_delete<atyp_udcp const> {};
std::unique_ptr<atyp_udmp, sddm> rtrn_udmp() { return std::unique_ptr<atyp_udmp, sddm>(new atyp_udmp{"Udmp"}); }
std::unique_ptr<atyp_udcp const, sddc> rtrn_udcp() { return std::unique_ptr<atyp_udcp const, sddc>(new atyp_udcp{"Udcp"}); }
// clang-format on
// Minimalistic approach to achieve full coverage of construct() overloads for constructing
// smart_holder from unique_ptr and shared_ptr returns.
struct with_alias {
int val = 0;
virtual ~with_alias() = default;
// Some compilers complain about implicitly defined versions of some of the following:
with_alias() = default;
with_alias(const with_alias &) = default;
with_alias(with_alias &&) = default;
with_alias &operator=(const with_alias &) = default;
with_alias &operator=(with_alias &&) = default;
};
struct with_alias_alias : with_alias {};
struct sddwaa : std::default_delete<with_alias_alias> {};
} // namespace class_sh_factory_constructors
} // namespace pybind11_tests
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_valu)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_rref)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_cref)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_mref)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_cptr)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_mptr)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_shmp)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_shcp)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_uqmp)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_uqcp)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_udmp)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::atyp_udcp)
PYBIND11_SMART_HOLDER_TYPE_CASTERS(pybind11_tests::class_sh_factory_constructors::with_alias)
TEST_SUBMODULE(class_sh_factory_constructors, m) {
m.attr("defined_PYBIND11_SMART_HOLDER_ENABLED") =
#ifndef PYBIND11_SMART_HOLDER_ENABLED
false;
#else
true;
using namespace pybind11_tests::class_sh_factory_constructors;
py::classh<atyp_valu>(m, "atyp_valu")
.def(py::init(&rtrn_valu))
.def("get_mtxt", get_mtxt<atyp_valu>);
py::classh<atyp_rref>(m, "atyp_rref")
.def(py::init(&rtrn_rref))
.def("get_mtxt", get_mtxt<atyp_rref>);
py::classh<atyp_cref>(m, "atyp_cref")
// class_: ... must return a compatible ...
// classh: ... cannot pass object of non-trivial type ...
// .def(py::init(&rtrn_cref))
.def("get_mtxt", get_mtxt<atyp_cref>);
py::classh<atyp_mref>(m, "atyp_mref")
// class_: ... must return a compatible ...
// classh: ... cannot pass object of non-trivial type ...
// .def(py::init(&rtrn_mref))
.def("get_mtxt", get_mtxt<atyp_mref>);
py::classh<atyp_cptr>(m, "atyp_cptr")
// class_: ... must return a compatible ...
// classh: ... must return a compatible ...
// .def(py::init(&rtrn_cptr))
.def("get_mtxt", get_mtxt<atyp_cptr>);
py::classh<atyp_mptr>(m, "atyp_mptr")
.def(py::init(&rtrn_mptr))
.def("get_mtxt", get_mtxt<atyp_mptr>);
py::classh<atyp_shmp>(m, "atyp_shmp")
.def(py::init(&rtrn_shmp))
.def("get_mtxt", get_mtxt<atyp_shmp>);
py::classh<atyp_shcp>(m, "atyp_shcp")
// py::class_<atyp_shcp, std::shared_ptr<atyp_shcp>>(m, "atyp_shcp")
// class_: ... must return a compatible ...
// classh: ... cannot pass object of non-trivial type ...
// .def(py::init(&rtrn_shcp))
.def("get_mtxt", get_mtxt<atyp_shcp>);
py::classh<atyp_uqmp>(m, "atyp_uqmp")
.def(py::init(&rtrn_uqmp))
.def("get_mtxt", get_mtxt<atyp_uqmp>);
py::classh<atyp_uqcp>(m, "atyp_uqcp")
// class_: ... cannot pass object of non-trivial type ...
// classh: ... cannot pass object of non-trivial type ...
// .def(py::init(&rtrn_uqcp))
.def("get_mtxt", get_mtxt<atyp_uqcp>);
py::classh<atyp_udmp>(m, "atyp_udmp")
.def(py::init(&rtrn_udmp))
.def("get_mtxt", get_mtxt<atyp_udmp>);
py::classh<atyp_udcp>(m, "atyp_udcp")
// py::class_<atyp_udcp, std::unique_ptr<atyp_udcp, sddc>>(m, "atyp_udcp")
// class_: ... must return a compatible ...
// classh: ... cannot pass object of non-trivial type ...
// .def(py::init(&rtrn_udcp))
.def("get_mtxt", get_mtxt<atyp_udcp>);
py::classh<with_alias, with_alias_alias>(m, "with_alias")
.def_readonly("val", &with_alias::val)
.def(py::init([](int i) {
auto p = std::unique_ptr<with_alias_alias, sddwaa>(new with_alias_alias);
p->val = i * 100;
return p;
}))
.def(py::init([](int i, int j) {
auto p = std::unique_ptr<with_alias_alias>(new with_alias_alias);
p->val = i * 100 + j * 10;
return p;
}))
.def(py::init([](int i, int j, int k) {
auto p = std::make_shared<with_alias_alias>();
p->val = i * 100 + j * 10 + k;
return p;
}))
.def(py::init(
[](int, int, int, int) { return std::unique_ptr<with_alias>(new with_alias); },
[](int, int, int, int) {
return std::unique_ptr<with_alias>(new with_alias); // Invalid alias factory.
}))
.def(py::init([](int, int, int, int, int) { return std::make_shared<with_alias>(); },
[](int, int, int, int, int) {
return std::make_shared<with_alias>(); // Invalid alias factory.
}));
#endif // PYBIND11_SMART_HOLDER_ENABLED
}