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/*=============================================================================
Wave: A Standard compliant C++ preprocessor
Copyright (c) 2001-2004 Hartmut Kaiser
http://spirit.sourceforge.net/
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)
See Copyright.txt for full acknowledgements.
=============================================================================*/
#if !defined(CPP_GRAMMAR_GEN_HPP_80CB8A59_5411_4E45_B406_62531A12FB99_INCLUDED)
#define CPP_GRAMMAR_GEN_HPP_80CB8A59_5411_4E45_B406_62531A12FB99_INCLUDED
#include <boost/spirit/tree/parse_tree.hpp>
#include "wave/lex_iterator.hpp"
#include "wave/language_support.hpp"
///////////////////////////////////////////////////////////////////////////////
namespace wave {
namespace grammars {
///////////////////////////////////////////////////////////////////////////////
//
// store parser_id's of all rules of the cpp_grammar here for later access
//
///////////////////////////////////////////////////////////////////////////////
struct cpp_grammar_rule_ids {
std::size_t pp_statement_id;
std::size_t include_file_id; // #include "..."
std::size_t sysinclude_file_id; // #include <...>
std::size_t macroinclude_file_id; // #include ...
std::size_t plain_define_id; // #define
std::size_t macro_parameters_id;
std::size_t macro_definition_id;
std::size_t undefine_id; // #undef
std::size_t ifdef_id; // #ifdef
std::size_t ifndef_id; // #ifndef
std::size_t if_id; // #if
std::size_t elif_id; // #elif
std::size_t else_id; // #else
std::size_t endif_id; // #endif
std::size_t line_id; // #line
std::size_t error_id; // #error
std::size_t warning_id; // #warning
std::size_t pragma_id; // #pragma
std::size_t illformed_id;
std::size_t ppspace_id;
#if defined(WAVE_ENABLE_CPP0X_EXTENSIONS)
std::size_t pp_regionsupport_id;
std::size_t ppregion_id; // #region
std::size_t ppendregion_id; // #endregion
std::size_t ppimport_id; // #import
#endif // defined(WAVE_ENABLE_CPP0X_EXTENSIONS)
std::size_t ppqualifiedname_id;
};
///////////////////////////////////////////////////////////////////////////////
//
// cpp_grammar_gen template class
//
// This template helps separating the compilation of the cpp_grammar
// class from the compilation of the main pp_iterator. This is done to
// safe compilation time.
//
///////////////////////////////////////////////////////////////////////////////
template <typename TokenT>
struct cpp_grammar_gen
{
typedef WAVE_LEXER_NS::lex_iterator<TokenT> iterator_t;
typedef typename TokenT::position_t position_t;
// the parser_id's of all rules of the cpp_grammar are stored here
// note: these are valid only after the first call to parse_cpp_grammar
static cpp_grammar_rule_ids rule_ids;
// the actual position of the last matched T_NEWLINE is stored here into the
// member 'pos_of_newline'
static position_t pos_of_newline;
// the found_eof flag is set to true during the parsing, if the directive
// under inspection terminates with a T__EOF token
static bool found_eof;
// the found_directive contains the token_id of the recognized pp directive
static WAVE_LEXER_NS::token_id found_directive;
// parse the cpp_grammar and return the resulting parse tree
static boost::spirit::tree_parse_info<iterator_t>
parse_cpp_grammar (iterator_t const &first, iterator_t const &last,
bool &found_eof_, position_t const &act_pos);
};
///////////////////////////////////////////////////////////////////////////////
// definitions of the static members
template <typename TokenT>
cpp_grammar_rule_ids cpp_grammar_gen<TokenT>::rule_ids;
template <typename TokenT>
typename TokenT::position_t cpp_grammar_gen<TokenT>::pos_of_newline;
template <typename TokenT>
bool cpp_grammar_gen<TokenT>::found_eof = false;
template <typename TokenT>
typename WAVE_LEXER_NS::token_id cpp_grammar_gen<TokenT>::found_directive =
WAVE_LEXER_NS::T_EOF;
///////////////////////////////////////////////////////////////////////////////
} // namespace grammars
} // namespace wave
#endif // !defined(CPP_GRAMMAR_GEN_HPP_80CB8A59_5411_4E45_B406_62531A12FB99_INCLUDED)
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