80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
// Copyright Abel Sinkovics (abel@sinkovics.hu) 2010.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/metaparse/transform.hpp>
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#include <boost/metaparse/is_error.hpp>
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#include <boost/metaparse/start.hpp>
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#include <boost/metaparse/get_result.hpp>
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#include <boost/metaparse/repeated.hpp>
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#include <boost/metaparse/one_char.hpp>
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#include "common.hpp"
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#include <boost/mpl/equal_to.hpp>
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#include <boost/mpl/always.hpp>
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#include <boost/mpl/apply_wrap.hpp>
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#include <boost/mpl/front.hpp>
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#include <boost/mpl/assert.hpp>
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#include "test_case.hpp"
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namespace
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{
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using boost::metaparse::repeated;
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using boost::metaparse::one_char;
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using boost::mpl::always;
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typedef always<char_x> f;
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typedef repeated<one_char> repeated_one_char;
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struct get_front
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{
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typedef get_front type;
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template <class C>
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struct apply : boost::mpl::front<C> {};
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};
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}
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BOOST_METAPARSE_TEST_CASE(transform)
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{
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using boost::metaparse::get_result;
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using boost::metaparse::transform;
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using boost::metaparse::start;
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using boost::metaparse::is_error;
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using boost::mpl::equal_to;
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using boost::mpl::apply_wrap2;
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// test_normal_case
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BOOST_MPL_ASSERT((
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equal_to<
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get_result<apply_wrap2<transform<lit_h, f>, str_hello, start> >::type,
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char_x
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>
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));
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// test_parser_fails
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BOOST_MPL_ASSERT((
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is_error<apply_wrap2<transform<lit_x, f>, str_hello, start> >
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));
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// test_empty_input
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BOOST_MPL_ASSERT((is_error<apply_wrap2<transform<lit_h, f>, str_, start> >));
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// test_tranformation_functions_arg
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BOOST_MPL_ASSERT((
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equal_to<
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get_result<
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apply_wrap2<transform<repeated_one_char, get_front>, str_hello, start>
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>::type,
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char_h
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>
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));
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}
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