test_kwargs_and_defaults.cpp revision 11986
111313Sandreas.sandberg@arm.com/*
211313Sandreas.sandberg@arm.com    tests/test_kwargs_and_defaults.cpp -- keyword arguments and default values
311313Sandreas.sandberg@arm.com
411313Sandreas.sandberg@arm.com    Copyright (c) 2016 Wenzel Jakob <wenzel.jakob@epfl.ch>
511313Sandreas.sandberg@arm.com
611313Sandreas.sandberg@arm.com    All rights reserved. Use of this source code is governed by a
711313Sandreas.sandberg@arm.com    BSD-style license that can be found in the LICENSE file.
811313Sandreas.sandberg@arm.com*/
911313Sandreas.sandberg@arm.com
1011313Sandreas.sandberg@arm.com#include "pybind11_tests.h"
1111313Sandreas.sandberg@arm.com#include <pybind11/stl.h>
1211313Sandreas.sandberg@arm.com
1311313Sandreas.sandberg@arm.comstd::string kw_func(int x, int y) { return "x=" + std::to_string(x) + ", y=" + std::to_string(y); }
1411313Sandreas.sandberg@arm.com
1511313Sandreas.sandberg@arm.comstd::string kw_func4(const std::vector<int> &entries) {
1611313Sandreas.sandberg@arm.com    std::string ret = "{";
1711313Sandreas.sandberg@arm.com    for (int i : entries)
1811313Sandreas.sandberg@arm.com        ret += std::to_string(i) + " ";
1911313Sandreas.sandberg@arm.com    ret.back() = '}';
2011313Sandreas.sandberg@arm.com    return ret;
2111313Sandreas.sandberg@arm.com}
2211313Sandreas.sandberg@arm.com
2311313Sandreas.sandberg@arm.compy::tuple args_function(py::args args) {
2411313Sandreas.sandberg@arm.com    return args;
2511313Sandreas.sandberg@arm.com}
2611313Sandreas.sandberg@arm.com
2711313Sandreas.sandberg@arm.compy::tuple args_kwargs_function(py::args args, py::kwargs kwargs) {
2811313Sandreas.sandberg@arm.com    return py::make_tuple(args, kwargs);
2911313Sandreas.sandberg@arm.com}
3011313Sandreas.sandberg@arm.com
3111313Sandreas.sandberg@arm.comstruct KWClass {
3211313Sandreas.sandberg@arm.com    void foo(int, float) {}
3311313Sandreas.sandberg@arm.com};
3411313Sandreas.sandberg@arm.com
3511313Sandreas.sandberg@arm.comtest_initializer arg_keywords_and_defaults([](py::module &m) {
3611313Sandreas.sandberg@arm.com    m.def("kw_func0", &kw_func);
3711313Sandreas.sandberg@arm.com    m.def("kw_func1", &kw_func, py::arg("x"), py::arg("y"));
3811313Sandreas.sandberg@arm.com    m.def("kw_func2", &kw_func, py::arg("x") = 100, py::arg("y") = 200);
3911313Sandreas.sandberg@arm.com    m.def("kw_func3", [](const char *) { }, py::arg("data") = std::string("Hello world!"));
4011313Sandreas.sandberg@arm.com
4111313Sandreas.sandberg@arm.com    /* A fancier default argument */
4211313Sandreas.sandberg@arm.com    std::vector<int> list;
4311313Sandreas.sandberg@arm.com    list.push_back(13);
4411313Sandreas.sandberg@arm.com    list.push_back(17);
4511313Sandreas.sandberg@arm.com    m.def("kw_func4", &kw_func4, py::arg("myList") = list);
4611313Sandreas.sandberg@arm.com
4711313Sandreas.sandberg@arm.com    m.def("args_function", &args_function);
4811313Sandreas.sandberg@arm.com    m.def("args_kwargs_function", &args_kwargs_function);
4911313Sandreas.sandberg@arm.com
5011313Sandreas.sandberg@arm.com    m.def("kw_func_udl", &kw_func, "x"_a, "y"_a=300);
5111313Sandreas.sandberg@arm.com    m.def("kw_func_udl_z", &kw_func, "x"_a, "y"_a=0);
5211313Sandreas.sandberg@arm.com
5311313Sandreas.sandberg@arm.com    py::class_<KWClass>(m, "KWClass")
5411313Sandreas.sandberg@arm.com        .def("foo0", &KWClass::foo)
5511313Sandreas.sandberg@arm.com        .def("foo1", &KWClass::foo, "x"_a, "y"_a);
5611313Sandreas.sandberg@arm.com});
5711313Sandreas.sandberg@arm.com