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Sat, Nov 30, 13:17

test_enum.cpp
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/*
tests/test_enums.cpp -- enumerations
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"
TEST_SUBMODULE(enums, m) {
// test_unscoped_enum
enum UnscopedEnum {
EOne = 1,
ETwo
};
py::enum_<UnscopedEnum>(m, "UnscopedEnum", py::arithmetic(), "An unscoped enumeration")
.value("EOne", EOne, "Docstring for EOne")
.value("ETwo", ETwo, "Docstring for ETwo")
.export_values();
// test_scoped_enum
enum class ScopedEnum {
Two = 2,
Three
};
py::enum_<ScopedEnum>(m, "ScopedEnum", py::arithmetic())
.value("Two", ScopedEnum::Two)
.value("Three", ScopedEnum::Three);
m.def("test_scoped_enum", [](ScopedEnum z) {
return "ScopedEnum::" + std::string(z == ScopedEnum::Two ? "Two" : "Three");
});
// test_binary_operators
enum Flags {
Read = 4,
Write = 2,
Execute = 1
};
py::enum_<Flags>(m, "Flags", py::arithmetic())
.value("Read", Flags::Read)
.value("Write", Flags::Write)
.value("Execute", Flags::Execute)
.export_values();
// test_implicit_conversion
class ClassWithUnscopedEnum {
public:
enum EMode {
EFirstMode = 1,
ESecondMode
};
static EMode test_function(EMode mode) {
return mode;
}
};
py::class_<ClassWithUnscopedEnum> exenum_class(m, "ClassWithUnscopedEnum");
exenum_class.def_static("test_function", &ClassWithUnscopedEnum::test_function);
py::enum_<ClassWithUnscopedEnum::EMode>(exenum_class, "EMode")
.value("EFirstMode", ClassWithUnscopedEnum::EFirstMode)
.value("ESecondMode", ClassWithUnscopedEnum::ESecondMode)
.export_values();
// test_enum_to_int
m.def("test_enum_to_int", [](int) { });
m.def("test_enum_to_uint", [](uint32_t) { });
m.def("test_enum_to_long_long", [](long long) { });
// test_duplicate_enum_name
enum SimpleEnum
{
ONE, TWO, THREE
};
m.def("register_bad_enum", [m]() {
py::enum_<SimpleEnum>(m, "SimpleEnum")
.value("ONE", SimpleEnum::ONE) //NOTE: all value function calls are called with the same first parameter value
.value("ONE", SimpleEnum::TWO)
.value("ONE", SimpleEnum::THREE)
.export_values();
});
}

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