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construct/include/ircd/spirit/custom_parser.h

121 lines
3.1 KiB
C++

// The Construct
//
// Copyright (C) The Construct Developers, Authors & Contributors
// Copyright (C) 2016-2022 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_SPIRIT_CUSTOM_PARSER_H
// This file is not part of the IRCd standard include list (stdinc.h) because
// it involves extremely expensive boost headers for creating formal spirit
// grammars. This file is automatically included in the spirit.h group.
namespace ircd::spirit
{
template<size_t id>
struct custom_parser;
BOOST_SPIRIT_TERMINAL(custom0);
BOOST_SPIRIT_TERMINAL(custom1);
BOOST_SPIRIT_TERMINAL(custom2);
}
namespace boost::spirit
{
namespace qi
{
template<class modifiers>
struct make_primitive<ircd::spirit::tag::custom0, modifiers>;
template<class modifiers>
struct make_primitive<ircd::spirit::tag::custom1, modifiers>;
template<class modifiers>
struct make_primitive<ircd::spirit::tag::custom2, modifiers>;
}
template<>
struct [[gnu::visibility("internal"), clang::internal_linkage]]
use_terminal<qi::domain, ircd::spirit::tag::custom0>
:mpl::true_
{};
template<>
struct [[gnu::visibility("internal"), clang::internal_linkage]]
use_terminal<qi::domain, ircd::spirit::tag::custom1>
:mpl::true_
{};
template<>
struct [[gnu::visibility("internal"), clang::internal_linkage]]
use_terminal<qi::domain, ircd::spirit::tag::custom2>
:mpl::true_
{};
}
template<size_t id>
struct [[gnu::visibility("internal"), clang::internal_linkage]]
ircd::spirit::custom_parser
:qi::primitive_parser<custom_parser<id>>
{
template<class context,
class iterator>
struct attribute
{
using type = iterator;
};
template<class context>
boost::spirit::info what(context &) const
{
return boost::spirit::info("custom");
}
template<class iterator,
class context,
class skipper,
class attr>
[[clang::internal_linkage]]
bool parse(iterator &, const iterator &, context &, const skipper &, attr &) const;
};
template<class modifiers>
struct [[gnu::visibility("internal"), clang::internal_linkage]]
boost::spirit::qi::make_primitive<ircd::spirit::tag::custom0, modifiers>
{
using result_type = ircd::spirit::custom_parser<0>;
result_type operator()(unused_type, unused_type) const
{
return result_type{};
}
};
template<class modifiers>
struct [[gnu::visibility("internal"), clang::internal_linkage]]
boost::spirit::qi::make_primitive<ircd::spirit::tag::custom1, modifiers>
{
using result_type = ircd::spirit::custom_parser<1>;
result_type operator()(unused_type, unused_type) const
{
return result_type{};
}
};
template<class modifiers>
struct [[gnu::visibility("internal"), clang::internal_linkage]]
boost::spirit::qi::make_primitive<ircd::spirit::tag::custom2, modifiers>
{
using result_type = ircd::spirit::custom_parser<2>;
result_type operator()(unused_type, unused_type) const
{
return result_type{};
}
};