1 files changed, 102 insertions, 0 deletions
diff --git a/3rdparty/pybind11/tests/test_kwargs_and_defaults.cpp b/3rdparty/pybind11/tests/test_kwargs_and_defaults.cpp
new file mode 100644
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+++ b/3rdparty/pybind11/tests/test_kwargs_and_defaults.cpp
@@ -0,0 +1,102 @@
+/*
+    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 std::move(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);
+}