sequence.cpp
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// Copyright Abel Sinkovics (abel@sinkovics.hu) 2010.
// 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/sequence.hpp>
#include <boost/metaparse/is_error.hpp>
#include <boost/metaparse/start.hpp>
#include <boost/metaparse/get_result.hpp>
#include <boost/metaparse/always.hpp>
#include <boost/metaparse/one_char.hpp>
#include "common.hpp"
#include <boost/mpl/equal_to.hpp>
#include <boost/mpl/apply_wrap.hpp>
#include <boost/mpl/list.hpp>
#include <boost/mpl/at.hpp>
#include <boost/mpl/equal.hpp>
#include <boost/mpl/vector_c.hpp>
#include <boost/mpl/vector.hpp>
#include <boost/mpl/assert.hpp>
#include "test_case.hpp"
BOOST_METAPARSE_TEST_CASE(sequence)
{
using boost::metaparse::get_result;
using boost::metaparse::sequence;
using boost::metaparse::start;
using boost::metaparse::is_error;
using boost::metaparse::always;
using boost::metaparse::one_char;
using boost::mpl::equal;
using boost::mpl::apply_wrap2;
using boost::mpl::list;
using boost::mpl::equal_to;
using boost::mpl::at_c;
using boost::mpl::vector_c;
using boost::mpl::vector;
typedef always<one_char, int> always_int;
// test_no_parser
BOOST_MPL_ASSERT((
equal<get_result<apply_wrap2<sequence<>, str_hello, start> >::type, list<> >
));
// test_one_parser
BOOST_MPL_ASSERT((
equal<
get_result<apply_wrap2<sequence<lit_h>, str_hello, start> >::type,
vector_c<char, 'h'>
>
));
// test_one_failing_parser
BOOST_MPL_ASSERT((is_error<apply_wrap2<sequence<lit_e>, str_hello, start> >));
// test_two_chars
BOOST_MPL_ASSERT((
equal<
get_result<apply_wrap2<sequence<lit_h, lit_e>, str_hello, start> >::type,
vector_c<char, 'h', 'e'>
>
));
// test_first_fails
BOOST_MPL_ASSERT((
is_error<apply_wrap2<sequence<lit_x, lit_e>, str_hello, start> >
));
// test_second_fails
BOOST_MPL_ASSERT((
is_error<apply_wrap2<sequence<lit_h, lit_x>, str_hello, start> >
));
// test_empty_input
BOOST_MPL_ASSERT((is_error<apply_wrap2<sequence<lit_h,lit_e>, str_,start> >));
// test_three_chars
BOOST_MPL_ASSERT((
equal<
get_result<
apply_wrap2<sequence<lit_h, lit_e, lit_l>, str_hello, start>
>::type,
vector_c<char, 'h', 'e', 'l'>
>
));
// test_indexing_in_result
BOOST_MPL_ASSERT((
equal_to<
at_c<
get_result<
apply_wrap2<sequence<lit_h, lit_e, lit_l>, str_hello, start>
>::type,
1
>::type,
char_e
>
));
// test_no_extra_evaluation
BOOST_MPL_ASSERT((
equal<
get_result<
apply_wrap2<sequence<always_int, always_int>, str_ca, start>
>::type,
vector<int, int>
>
));
}