mirror of
https://github.com/matrix-construct/construct
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75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
// The Construct
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//
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// Copyright (C) The Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#ifndef HAVE_IRCD_SPIRIT_H
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#define HAVE_IRCD_SPIRIT_H
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/// This file is not part of the IRCd standard include list (stdinc.h) because
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/// it involves extremely expensive boost headers for creating formal spirit
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/// grammars. Include this in a definition file which defines such grammars.
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///
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/// Note that directly sharing elements of a grammar between two compilation
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/// units can be achieved with forward declarations in `ircd/grammar.h`.
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// ircd.h is included here so that it can be compiled into this header. Then
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// this becomes the single leading precompiled header.
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#include <ircd/ircd.h>
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// Disables asserts in spirit headers even when we're NDEBUG due to
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// some false asserts around boolean character tests in spirit.
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#define BOOST_DISABLE_ASSERTS
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// This prevents spirit grammar rules from generating a very large and/or deep
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// call-graph where rules compose together using wrapped indirect calls through
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// boost::function -- this is higly inefficient as the grammar's logic ends up
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// being a fraction of the generated code and the rest is invocation related
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// overhead. By force-flattening here we can allow each entry-point into
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// spirit to compose rules at once and eliminate the wrapping complex.
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#pragma clang attribute push ([[gnu::always_inline]], apply_to = function)
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#pragma clang attribute push ([[gnu::flatten]], apply_to = function)
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#include <boost/config.hpp>
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#include <boost/function.hpp>
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#pragma GCC visibility push (internal)
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namespace boost::spirit
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{
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using std::function;
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}
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#include <boost/fusion/sequence.hpp>
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#include <boost/fusion/iterator.hpp>
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#include <boost/fusion/adapted.hpp>
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#include <boost/fusion/functional.hpp>
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#include <boost/fusion/algorithm.hpp>
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#include <boost/fusion/include/std_pair.hpp>
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#include <boost/spirit/include/qi.hpp>
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#include <boost/spirit/include/karma.hpp>
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#include <boost/spirit/include/phoenix.hpp>
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#include <boost/spirit/repository/include/qi_seek.hpp>
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#include <boost/spirit/repository/include/qi_subrule.hpp>
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#pragma GCC visibility pop
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#pragma clang attribute pop
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#pragma clang attribute pop
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#include <ircd/spirit/spirit.h>
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#include <ircd/spirit/expectation_failure.h>
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#include <ircd/spirit/parse.h>
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#include <ircd/spirit/generate.h>
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namespace ircd
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{
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using spirit::generate;
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using spirit::parse;
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}
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#endif HAVE_IRCD_SPIRIT_H
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