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665e8804f3
The C++ part of the test code is modified to achieve this. As a result,
this kind of test:
```python
with capture:
kw_func1(5, y=10)
assert capture == "kw_func(x=5, y=10)"
```
can be replaced with a simple:
`assert kw_func1(5, y=10) == "x=5, y=10"`
73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
/*
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tests/test_kwargs_and_defaults.cpp -- keyword arguments and default values
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Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
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All rights reserved. Use of this source code is governed by a
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BSD-style license that can be found in the LICENSE file.
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*/
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#include "pybind11_tests.h"
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#include <pybind11/stl.h>
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std::string kw_func(int x, int y) { return "x=" + std::to_string(x) + ", y=" + std::to_string(y); }
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std::string kw_func4(const std::vector<int> &entries) {
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std::string ret = "{";
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for (int i : entries)
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ret += std::to_string(i) + " ";
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ret.back() = '}';
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return ret;
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}
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py::object call_kw_func(py::function f) {
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py::tuple args = py::make_tuple(1234);
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py::dict kwargs;
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kwargs["y"] = py::cast(5678);
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return f(*args, **kwargs);
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}
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void args_function(py::args args) {
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for (size_t it=0; it<args.size(); ++it)
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std::cout << "got argument: " << py::object(args[it]) << std::endl;
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}
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void args_kwargs_function(py::args args, py::kwargs kwargs) {
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for (auto item : args)
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std::cout << "got argument: " << item << std::endl;
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if (kwargs) {
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for (auto item : kwargs)
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std::cout << "got keyword argument: " << item.first << " -> " << item.second << std::endl;
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}
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}
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struct KWClass {
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void foo(int, float) {}
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};
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void init_ex_arg_keywords_and_defaults(py::module &m) {
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m.def("kw_func0", &kw_func);
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m.def("kw_func1", &kw_func, py::arg("x"), py::arg("y"));
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m.def("kw_func2", &kw_func, py::arg("x") = 100, py::arg("y") = 200);
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m.def("kw_func3", [](const char *) { }, py::arg("data") = std::string("Hello world!"));
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/* A fancier default argument */
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std::vector<int> list;
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list.push_back(13);
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list.push_back(17);
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m.def("kw_func4", &kw_func4, py::arg("myList") = list);
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m.def("call_kw_func", &call_kw_func);
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m.def("args_function", &args_function);
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m.def("args_kwargs_function", &args_kwargs_function);
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using namespace py::literals;
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m.def("kw_func_udl", &kw_func, "x"_a, "y"_a=300);
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m.def("kw_func_udl_z", &kw_func, "x"_a, "y"_a=0);
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py::class_<KWClass>(m, "KWClass")
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.def("foo0", &KWClass::foo)
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.def("foo1", &KWClass::foo, "x"_a, "y"_a);
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}
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