add boost on mac
This commit is contained in:
Bassem Girgis
393
macx64/include/boost/spirit/home/classic/meta/impl/traverse.ipp
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393
macx64/include/boost/spirit/home/classic/meta/impl/traverse.ipp
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/*=============================================================================
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Copyright (c) 2002-2003 Joel de Guzman
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Copyright (c) 2002-2003 Hartmut Kaiser
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http://spirit.sourceforge.net/
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Use, modification and distribution is subject to the Boost Software
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License, Version 1.0. (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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=============================================================================*/
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#if !defined(BOOST_SPIRIT_TRAVERSE_IPP)
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#define BOOST_SPIRIT_TRAVERSE_IPP
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///////////////////////////////////////////////////////////////////////////////
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#include <boost/spirit/home/classic/meta/fundamental.hpp>
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///////////////////////////////////////////////////////////////////////////////
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namespace boost { namespace spirit {
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BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
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///////////////////////////////////////////////////////////////////////////////
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namespace impl
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{
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template <typename CategoryT>
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struct traverse_post_order_return_category;
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} // namespace impl
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///////////////////////////////////////////////////////////////////////////////
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//
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// Environment class for post_order_traversal
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//
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///////////////////////////////////////////////////////////////////////////////
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template <int Level, int Node, int Index, int LastLeft>
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struct traverse_post_order_env {
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BOOST_STATIC_CONSTANT(int, level = Level);
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BOOST_STATIC_CONSTANT(int, node = Node);
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BOOST_STATIC_CONSTANT(int, index = Index);
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BOOST_STATIC_CONSTANT(int, lastleft = LastLeft);
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};
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///////////////////////////////////////////////////////////////////////////////
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//
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// traverse_post_order_return template
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//
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// This template is a helper for dispatching the calculation of a parser
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// type result for a traversal level to the corresponding parser_category
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// based specialization.
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//
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///////////////////////////////////////////////////////////////////////////////
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template <typename MetaT, typename ParserT, typename EnvT>
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struct traverse_post_order_return {
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typedef typename ParserT::parser_category_t parser_category_t;
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typedef typename impl::traverse_post_order_return_category<parser_category_t>
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::template result<MetaT, ParserT, EnvT>::type type;
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};
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///////////////////////////////////////////////////////////////////////////////
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//
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// parser_traversal_..._result templates
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//
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// These are metafunctions, which calculate the resulting parser type
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// for all subparsers and feed these types to the user supplied
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// metafunctions to get back the resulting parser type of this traversal
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// level.
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//
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///////////////////////////////////////////////////////////////////////////////
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template <typename MetaT, typename ParserT, typename EnvT>
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struct parser_traversal_plain_result {
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typedef typename MetaT::template plain_result<ParserT, EnvT>::type type;
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};
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///////////////////////////////////////////////////////////////////////////////
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template <typename MetaT, typename UnaryT, typename SubjectT, typename EnvT>
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struct parser_traversal_unary_result {
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typedef typename MetaT
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::template unary_result<UnaryT, SubjectT, EnvT>::type type;
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};
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///////////////////////////////////////////////////////////////////////////////
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template <typename MetaT, typename ActionT, typename SubjectT, typename EnvT>
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struct parser_traversal_action_result {
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typedef typename MetaT
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::template action_result<ActionT, SubjectT, EnvT>::type type;
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};
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///////////////////////////////////////////////////////////////////////////////
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template <
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typename MetaT, typename BinaryT, typename LeftT,
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typename RightT, typename EnvT
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>
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struct parser_traversal_binary_result {
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BOOST_STATIC_CONSTANT(int,
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thisnum = (node_count<BinaryT>::value + EnvT::lastleft-1));
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BOOST_STATIC_CONSTANT(int,
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leftnum = (node_count<LeftT>::value + EnvT::lastleft-1));
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BOOST_STATIC_CONSTANT(int,
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leafnum = (leaf_count<LeftT>::value + EnvT::index));
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typedef parser_traversal_binary_result self_t;
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// left traversal environment and resulting parser type
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typedef traverse_post_order_env<
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(EnvT::level+1), (self_t::leftnum), (EnvT::index), (EnvT::lastleft)
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> left_sub_env_t;
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typedef typename traverse_post_order_return<
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MetaT, LeftT, left_sub_env_t
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>::type
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left_t;
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// right traversal environment and resulting parser type
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typedef traverse_post_order_env<
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(EnvT::level+1), (self_t::thisnum-1), (self_t::leafnum), (self_t::leftnum+1)
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> right_sub_env_t;
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typedef typename traverse_post_order_return<
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MetaT, RightT, right_sub_env_t
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>::type
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right_t;
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typedef typename MetaT::template binary_result<
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BinaryT, left_t, right_t, EnvT
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>::type
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type;
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};
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///////////////////////////////////////////////////////////////////////////////
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namespace impl
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{
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///////////////////////////////////////////////////////////////////////////
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//
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// Meta functions, which dispatch the calculation of the return type of
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// of the post_order traverse function to the result template of the
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// corresponding parser_category based metafunction template.
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//
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///////////////////////////////////////////////////////////////////////////
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template <typename CategoryT>
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struct traverse_post_order_return_category;
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template <>
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struct traverse_post_order_return_category<plain_parser_category> {
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template <typename MetaT, typename ParserT, typename EnvT>
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struct result {
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typedef typename parser_traversal_plain_result<
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MetaT, ParserT, EnvT
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>::type
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type;
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};
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};
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template <>
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struct traverse_post_order_return_category<unary_parser_category> {
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template <typename MetaT, typename ParserT, typename EnvT>
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struct result {
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typedef typename parser_traversal_unary_result<
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MetaT, ParserT, typename ParserT::subject_t, EnvT
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>::type
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type;
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};
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};
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template <>
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struct traverse_post_order_return_category<action_parser_category> {
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template <typename MetaT, typename ParserT, typename EnvT>
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struct result {
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typedef typename parser_traversal_action_result<
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MetaT, ParserT, typename ParserT::subject_t, EnvT
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>::type
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type;
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};
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};
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template <>
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struct traverse_post_order_return_category<binary_parser_category> {
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template <typename MetaT, typename ParserT, typename EnvT>
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struct result {
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typedef typename parser_traversal_binary_result<
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MetaT, ParserT, typename ParserT::left_t,
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typename ParserT::right_t, EnvT
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>::type
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type;
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};
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};
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///////////////////////////////////////////////////////////////////////////
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//
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// Post-order parser traversal
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//
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// The following templates contain the parser_category based code for
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//
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// - calculating the type of the resulting parser, which is to be
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// returned from a level of traversal
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// - traversing down the composite parser structure, this traversal
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// returnes a new parser object
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//
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// Both tasks are delegated to the MetaT metafunction supplied by the
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// user.
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//
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///////////////////////////////////////////////////////////////////////////
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template <typename CategoryT>
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struct traverse_post_order;
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template <>
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struct traverse_post_order<plain_parser_category> {
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template <typename MetaT, typename ParserT, typename EnvT>
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struct result {
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typedef
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typename parser_traversal_plain_result<MetaT, ParserT, EnvT>::type
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type;
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};
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template <typename MetaT, typename ParserT, typename EnvT>
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static
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typename parser_traversal_plain_result<MetaT, ParserT, EnvT>::type
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generate(MetaT const &meta_, ParserT const &parser_, EnvT const &env)
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{
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return meta_.generate_plain(parser_, env);
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}
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};
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template <>
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struct traverse_post_order<unary_parser_category> {
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template <
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typename MetaT, typename ParserT, typename SubjectT, typename EnvT
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>
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struct result {
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typedef typename parser_traversal_unary_result<
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MetaT, ParserT, SubjectT, EnvT
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>::type
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type;
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};
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template <typename MetaT, typename ParserT, typename EnvT>
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static
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typename parser_traversal_unary_result<
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MetaT, ParserT,
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typename traverse_post_order_return<
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MetaT, typename ParserT::subject_t, EnvT
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>::type,
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EnvT
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>::type
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generate(MetaT const &meta_, ParserT const &unary_, EnvT const &env)
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{
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typedef typename ParserT::subject_t subject_t;
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typedef typename subject_t::parser_category_t subject_category_t;
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return meta_.generate_unary(
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unary_,
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traverse_post_order<subject_category_t>::generate(meta_,
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unary_.subject(),
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traverse_post_order_env<
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EnvT::level+1, EnvT::node-1, EnvT::index, EnvT::lastleft
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>()
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),
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env
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);
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}
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};
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template <>
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struct traverse_post_order<action_parser_category> {
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template <
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typename MetaT, typename ParserT, typename SubjectT, typename EnvT
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>
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struct result {
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typedef typename parser_traversal_action_result<
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MetaT, ParserT, SubjectT, EnvT
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>::type
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type;
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};
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template <typename MetaT, typename ParserT, typename EnvT>
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static
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typename parser_traversal_action_result<
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MetaT, ParserT,
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typename traverse_post_order_return<
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MetaT, typename ParserT::subject_t, EnvT
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>::type,
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EnvT
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>::type
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generate(MetaT const &meta_, ParserT const &action_, EnvT const &env)
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{
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typedef typename ParserT::subject_t subject_t;
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typedef typename subject_t::parser_category_t subject_category_t;
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return meta_.generate_action(
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action_,
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traverse_post_order<subject_category_t>::generate(meta_,
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action_.subject(),
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traverse_post_order_env<
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EnvT::level+1, EnvT::node-1, EnvT::index, EnvT::lastleft
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>()
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),
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env
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);
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}
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};
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template <>
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struct traverse_post_order<binary_parser_category> {
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template <
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typename MetaT, typename ParserT, typename LeftT,
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typename RightT, typename EnvT
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>
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struct result {
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typedef typename parser_traversal_binary_result<
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MetaT, ParserT, LeftT, RightT, EnvT
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>::type
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type;
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};
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template <typename MetaT, typename ParserT, typename EnvT>
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static
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typename parser_traversal_binary_result<
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MetaT, ParserT,
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typename traverse_post_order_return<
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MetaT, typename ParserT::left_t, EnvT
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>::type,
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typename traverse_post_order_return<
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MetaT, typename ParserT::right_t, EnvT
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>::type,
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EnvT
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>::type
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generate(MetaT const &meta_, ParserT const &binary_, EnvT const& /*env*/)
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{
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typedef typename ParserT::left_t left_t;
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typedef typename ParserT::right_t right_t;
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typedef typename left_t::parser_category_t left_category_t;
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typedef typename right_t::parser_category_t right_category_t;
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enum {
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leftnum = (node_count<left_t>::value + EnvT::lastleft-1),
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thisnum = (node_count<ParserT>::value + EnvT::lastleft-1),
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rightnum = (thisnum-1),
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leafnum = (leaf_count<left_t>::value + EnvT::index)
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};
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return meta_.generate_binary(
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binary_,
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traverse_post_order<left_category_t>::generate(
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meta_, binary_.left(),
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traverse_post_order_env<
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EnvT::level+1, leftnum, EnvT::index, EnvT::lastleft
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>()
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),
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traverse_post_order<right_category_t>::generate(
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meta_, binary_.right(),
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traverse_post_order_env<
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EnvT::level+1, rightnum, leafnum, leftnum+1
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>()
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),
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traverse_post_order_env<
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EnvT::level, thisnum, EnvT::index, EnvT::lastleft
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>()
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);
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}
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};
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} // namespace impl
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///////////////////////////////////////////////////////////////////////////////
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BOOST_SPIRIT_CLASSIC_NAMESPACE_END
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}} // namespace boost::spirit
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#endif // !defined(BOOST_SPIRIT_TRAVERSE_IPP)
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