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/*=============================================================================
Copyright (c) 2019 Nikita Kniazev
Use, modification and distribution is subject to 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)
=============================================================================*/
#if !defined(BOOST_SPIRIT_TEST_X3_UTILS_HPP)
#define BOOST_SPIRIT_TEST_X3_UTILS_HPP
#include <boost/spirit/home/x3/core/parser.hpp>
struct move_only
{
move_only() = default;
move_only(move_only&&) = default;
move_only& operator=(move_only&&) = default;
};
template <typename T>
struct synth_parser : boost::spirit::x3::parser<synth_parser<T>>
{
typedef T attribute_type;
static bool const has_attribute = true;
static bool const handles_container = false;
template <typename Iterator, typename Context,
typename RuleContext, typename Attribute>
bool parse(Iterator& iter, Iterator const& last, Context const&,
RuleContext&, Attribute& attr) const
{
if (iter != last && *iter == 's') {
++iter;
boost::spirit::x3::traits::move_to(attribute_type{}, attr);
return true;
}
return false;
}
};
template <typename T>
synth_parser<T> synth{};
synth_parser<move_only> const synth_move_only{};
#endif
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