mirror of
https://github.com/thelsing/knx.git
synced 2024-12-18 19:08:18 +01:00
101 lines
4.0 KiB
C++
101 lines
4.0 KiB
C++
/*
|
|
tests/test_kwargs_and_defaults.cpp -- keyword arguments and default values
|
|
|
|
Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
|
|
|
|
All rights reserved. Use of this source code is governed by a
|
|
BSD-style license that can be found in the LICENSE file.
|
|
*/
|
|
|
|
#include "pybind11_tests.h"
|
|
#include "constructor_stats.h"
|
|
#include <pybind11/stl.h>
|
|
|
|
TEST_SUBMODULE(kwargs_and_defaults, m) {
|
|
auto kw_func = [](int x, int y) { return "x=" + std::to_string(x) + ", y=" + std::to_string(y); };
|
|
|
|
// test_named_arguments
|
|
m.def("kw_func0", kw_func);
|
|
m.def("kw_func1", kw_func, py::arg("x"), py::arg("y"));
|
|
m.def("kw_func2", kw_func, py::arg("x") = 100, py::arg("y") = 200);
|
|
m.def("kw_func3", [](const char *) { }, py::arg("data") = std::string("Hello world!"));
|
|
|
|
/* A fancier default argument */
|
|
std::vector<int> list{{13, 17}};
|
|
m.def("kw_func4", [](const std::vector<int> &entries) {
|
|
std::string ret = "{";
|
|
for (int i : entries)
|
|
ret += std::to_string(i) + " ";
|
|
ret.back() = '}';
|
|
return ret;
|
|
}, py::arg("myList") = list);
|
|
|
|
m.def("kw_func_udl", kw_func, "x"_a, "y"_a=300);
|
|
m.def("kw_func_udl_z", kw_func, "x"_a, "y"_a=0);
|
|
|
|
// test_args_and_kwargs
|
|
m.def("args_function", [](py::args args) -> py::tuple { return args; });
|
|
m.def("args_kwargs_function", [](py::args args, py::kwargs kwargs) {
|
|
return py::make_tuple(args, kwargs);
|
|
});
|
|
|
|
// test_mixed_args_and_kwargs
|
|
m.def("mixed_plus_args", [](int i, double j, py::args args) {
|
|
return py::make_tuple(i, j, args);
|
|
});
|
|
m.def("mixed_plus_kwargs", [](int i, double j, py::kwargs kwargs) {
|
|
return py::make_tuple(i, j, kwargs);
|
|
});
|
|
auto mixed_plus_both = [](int i, double j, py::args args, py::kwargs kwargs) {
|
|
return py::make_tuple(i, j, args, kwargs);
|
|
};
|
|
m.def("mixed_plus_args_kwargs", mixed_plus_both);
|
|
|
|
m.def("mixed_plus_args_kwargs_defaults", mixed_plus_both,
|
|
py::arg("i") = 1, py::arg("j") = 3.14159);
|
|
|
|
// test_args_refcount
|
|
// PyPy needs a garbage collection to get the reference count values to match CPython's behaviour
|
|
#ifdef PYPY_VERSION
|
|
#define GC_IF_NEEDED ConstructorStats::gc()
|
|
#else
|
|
#define GC_IF_NEEDED
|
|
#endif
|
|
m.def("arg_refcount_h", [](py::handle h) { GC_IF_NEEDED; return h.ref_count(); });
|
|
m.def("arg_refcount_h", [](py::handle h, py::handle, py::handle) { GC_IF_NEEDED; return h.ref_count(); });
|
|
m.def("arg_refcount_o", [](py::object o) { GC_IF_NEEDED; return o.ref_count(); });
|
|
m.def("args_refcount", [](py::args a) {
|
|
GC_IF_NEEDED;
|
|
py::tuple t(a.size());
|
|
for (size_t i = 0; i < a.size(); i++)
|
|
// Use raw Python API here to avoid an extra, intermediate incref on the tuple item:
|
|
t[i] = (int) Py_REFCNT(PyTuple_GET_ITEM(a.ptr(), static_cast<ssize_t>(i)));
|
|
return t;
|
|
});
|
|
m.def("mixed_args_refcount", [](py::object o, py::args a) {
|
|
GC_IF_NEEDED;
|
|
py::tuple t(a.size() + 1);
|
|
t[0] = o.ref_count();
|
|
for (size_t i = 0; i < a.size(); i++)
|
|
// Use raw Python API here to avoid an extra, intermediate incref on the tuple item:
|
|
t[i + 1] = (int) Py_REFCNT(PyTuple_GET_ITEM(a.ptr(), static_cast<ssize_t>(i)));
|
|
return t;
|
|
});
|
|
|
|
// pybind11 won't allow these to be bound: args and kwargs, if present, must be at the end.
|
|
// Uncomment these to test that the static_assert is indeed working:
|
|
// m.def("bad_args1", [](py::args, int) {});
|
|
// m.def("bad_args2", [](py::kwargs, int) {});
|
|
// m.def("bad_args3", [](py::kwargs, py::args) {});
|
|
// m.def("bad_args4", [](py::args, int, py::kwargs) {});
|
|
// m.def("bad_args5", [](py::args, py::kwargs, int) {});
|
|
// m.def("bad_args6", [](py::args, py::args) {});
|
|
// m.def("bad_args7", [](py::kwargs, py::kwargs) {});
|
|
|
|
// test_function_signatures (along with most of the above)
|
|
struct KWClass { void foo(int, float) {} };
|
|
py::class_<KWClass>(m, "KWClass")
|
|
.def("foo0", &KWClass::foo)
|
|
.def("foo1", &KWClass::foo, "x"_a, "y"_a);
|
|
}
|