hana/test/concept/struct/member_function.cpp
2017-01-07 14:14:18 -08:00

44 lines
1.1 KiB
C++

// Copyright Louis Dionne 2013-2017
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
#include <boost/hana/assert.hpp>
#include <boost/hana/for_each.hpp>
#include <boost/hana/fuse.hpp>
#include <boost/hana/fwd/accessors.hpp>
#include <boost/hana/pair.hpp>
#include <boost/hana/string.hpp>
#include <boost/hana/tuple.hpp>
#include <string>
namespace hana = boost::hana;
//
// Unit test inspired by http://stackoverflow.com/q/32678647/627587
//
struct Foo {
std::string get_name() const { return "louis"; }
};
namespace boost { namespace hana {
template <>
struct accessors_impl<Foo> {
static auto apply() {
return hana::make_tuple(
hana::make_pair(BOOST_HANA_STRING("get_name"), [](auto const& foo) {
return foo.get_name();
})
);
}
};
}}
int main() {
Foo foo;
hana::for_each(foo, hana::fuse([](auto /*key*/, std::string const& name) {
BOOST_HANA_RUNTIME_CHECK(name == "louis");
}));
}