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// 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)
#ifndef BOOST_HANA_TEST_LAWS_SEQUENCE_HPP
#define BOOST_HANA_TEST_LAWS_SEQUENCE_HPP
#include <boost/hana/assert.hpp>
#include <boost/hana/concept/sequence.hpp>
#include <boost/hana/config.hpp>
#include <boost/hana/core/tag_of.hpp>
#include <boost/hana/functional/capture.hpp>
#include <boost/hana/functional/compose.hpp>
#include <boost/hana/functional/id.hpp>
#include <boost/hana/functional/partial.hpp>
#include <boost/hana/integral_constant.hpp>
#include <boost/hana/optional.hpp>
#include <boost/hana/plus.hpp>
#include <boost/hana/range.hpp>
#include <boost/hana/tuple.hpp>
#include <laws/base.hpp>
#include <support/minimal_product.hpp>
#include <support/seq.hpp>
#include <type_traits>
#include <vector>
namespace boost { namespace hana { namespace test {
template <typename S, typename = when<true>>
struct TestSequence : TestSequence<S, laws> {
using TestSequence<S, laws>::TestSequence;
};
template <typename S>
struct TestSequence<S, laws> {
template <int i>
using eq = integer<i,
Policy::Comparable
| Policy::Constant
>;
template <int i>
using cx_eq = integer<i,
Policy::Comparable
| Policy::Constexpr
>;
template <int i>
using ord = integer<i,
Policy::Orderable
| Policy::Constant
>;
struct undefined { };
TestSequence() {
constexpr auto list = make<S>; (void)list;
constexpr auto foldable = ::seq; (void)foldable;
//////////////////////////////////////////////////////////////////
// Check for Sequence<...>
//////////////////////////////////////////////////////////////////
static_assert(Sequence<decltype(list())>{}, "");
static_assert(Sequence<decltype(list(1))>{}, "");
static_assert(Sequence<decltype(list(1, '2'))>{}, "");
static_assert(Sequence<decltype(list(1, '2', 3.4))>{}, "");
//////////////////////////////////////////////////////////////////
// Check for basic tag consistency
//////////////////////////////////////////////////////////////////
struct Random;
static_assert(std::is_same<tag_of_t<decltype(list())>, S>{}, "");
static_assert(std::is_same<tag_of_t<decltype(list(1))>, S>{}, "");
static_assert(std::is_same<tag_of_t<decltype(list(1, '2'))>, S>{}, "");
static_assert(std::is_same<tag_of_t<decltype(list(1, '2', 3.3))>, S>{}, "");
static_assert(!std::is_same<tag_of_t<Random>, S>{}, "");
//////////////////////////////////////////////////////////////////
// Foldable -> Sequence conversion
//////////////////////////////////////////////////////////////////
{
BOOST_HANA_CONSTANT_CHECK(equal(
to<S>(foldable()),
list()
));
BOOST_HANA_CONSTANT_CHECK(equal(
to<S>(foldable(eq<0>{})),
list(eq<0>{})
));
BOOST_HANA_CONSTANT_CHECK(equal(
to<S>(foldable(eq<0>{}, eq<1>{})),
list(eq<0>{}, eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(equal(
to<S>(foldable(eq<0>{}, eq<1>{}, eq<2>{})),
list(eq<0>{}, eq<1>{}, eq<2>{})
));
BOOST_HANA_CONSTANT_CHECK(equal(
to<S>(foldable(eq<0>{}, eq<1>{}, eq<2>{}, eq<3>{})),
list(eq<0>{}, eq<1>{}, eq<2>{}, eq<3>{})
));
}
//////////////////////////////////////////////////////////////////
// make (tautological given our definition of `list`)
//////////////////////////////////////////////////////////////////
BOOST_HANA_CONSTANT_CHECK(equal(
make<S>(),
list()
));
BOOST_HANA_CONSTANT_CHECK(equal(
make<S>(eq<0>{}),
list(eq<0>{})
));
BOOST_HANA_CONSTANT_CHECK(equal(
make<S>(eq<0>{}, eq<1>{}),
list(eq<0>{}, eq<1>{})
));
BOOST_HANA_CONSTANT_CHECK(equal(
make<S>(eq<0>{}, eq<1>{}, eq<2>{}),
list(eq<0>{}, eq<1>{}, eq<2>{})
));
BOOST_HANA_CONSTANT_CHECK(equal(
make<S>(eq<0>{}, eq<1>{}, eq<2>{}, eq<3>{}),
list(eq<0>{}, eq<1>{}, eq<2>{}, eq<3>{})
));
}
};
}}} // end namespace boost::hana::test
#endif // !BOOST_HANA_TEST_LAWS_SEQUENCE_HPP
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