hana/test/ext/boost/tuple/monad.cpp
2017-01-07 14:14:18 -08:00

53 lines
1.8 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/ext/boost/tuple.hpp>
#include <boost/hana/tuple.hpp>
#include <laws/applicative.hpp>
#include <laws/base.hpp>
#include <laws/functor.hpp>
#include <laws/monad.hpp>
#include <boost/tuple/tuple.hpp>
namespace hana = boost::hana;
template <int i>
using eq = hana::test::ct_eq<i>;
int main() {
//////////////////////////////////////////////////////////////////////////
// Setup for the laws below
//////////////////////////////////////////////////////////////////////////
auto eq_tuples = hana::make_tuple(
::boost::make_tuple()
, ::boost::make_tuple(eq<0>{})
, ::boost::make_tuple(eq<0>{}, eq<1>{})
);
auto eq_values = hana::make_tuple(eq<0>{}, eq<2>{});
auto eq_tuples_tuples = hana::make_tuple(
::boost::make_tuple()
, ::boost::make_tuple(
::boost::make_tuple(eq<0>{}))
, ::boost::make_tuple(
::boost::make_tuple(eq<0>{}),
::boost::make_tuple(eq<1>{}, eq<2>{}))
, ::boost::make_tuple(
::boost::make_tuple(eq<0>{}),
::boost::make_tuple(eq<1>{}, eq<2>{}),
::boost::make_tuple(eq<3>{}, eq<4>{}))
);
//////////////////////////////////////////////////////////////////////////
// Functor up to Monad
//////////////////////////////////////////////////////////////////////////
hana::test::TestFunctor<hana::ext::boost::tuple_tag>{eq_tuples, eq_values};
hana::test::TestApplicative<hana::ext::boost::tuple_tag>{eq_tuples};
hana::test::TestMonad<hana::ext::boost::tuple_tag>{eq_tuples, eq_tuples_tuples};
}