metaparse/test/reject.cpp
2015-09-06 12:30:27 +02:00

59 lines
1.3 KiB
C++

// Copyright Abel Sinkovics (abel@sinkovics.hu) 2014.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <boost/metaparse/reject.hpp>
#include <boost/metaparse/start.hpp>
#include <boost/metaparse/get_message.hpp>
#include <boost/metaparse/get_position.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/type_traits.hpp>
#include "test_case.hpp"
namespace
{
template <class T>
struct returns
{
typedef T type;
};
template <class T>
struct get_foo
{
typedef typename T::foo type;
};
}
BOOST_METAPARSE_TEST_CASE(reject)
{
using boost::metaparse::reject;
using boost::metaparse::start;
using boost::metaparse::get_message;
using boost::metaparse::get_position;
using boost::is_same;
// test_reject_is_metaprogramming_value
BOOST_MPL_ASSERT((is_same<reject<int, start>, reject<int, start>::type>));
// test_reject_is_not_lazy
BOOST_MPL_ASSERT((
is_same<
reject<get_foo<int>, start>,
reject<get_foo<int>, returns<start> >::type
>
));
// test_get_message_of_reject
BOOST_MPL_ASSERT((is_same<int, get_message<reject<int, start> >::type>));
// test_get_position_of_reject
BOOST_MPL_ASSERT((is_same<start, get_position<reject<int, start> >::type>));
}