Chris@16: /*=============================================================================
Chris@16:     Boost.Wave: A Standard compliant C++ preprocessor library
Chris@16: 
Chris@16:     Definition of the abstract lexer interface
Chris@16:     
Chris@16:     http://www.boost.org/
Chris@16: 
Chris@16:     Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost
Chris@16:     Software License, Version 1.0. (See accompanying file
Chris@16:     LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: =============================================================================*/
Chris@16: 
Chris@16: #if !defined(CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED)
Chris@16: #define CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED
Chris@16: 
Chris@16: #include <boost/wave/wave_config.hpp>
Chris@16: #include <boost/wave/util/file_position.hpp>
Chris@16: #include <boost/wave/language_support.hpp>
Chris@16: 
Chris@16: // this must occur after all of the includes and before any code appears
Chris@16: #ifdef BOOST_HAS_ABI_HEADERS
Chris@16: #include BOOST_ABI_PREFIX
Chris@16: #endif
Chris@16: 
Chris@16: // suppress warnings about dependent classes not being exported from the dll
Chris@16: #ifdef BOOST_MSVC
Chris@16: #pragma warning(push)
Chris@16: #pragma warning(disable : 4251 4231 4660)
Chris@16: #endif
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: namespace boost {
Chris@16: namespace wave {
Chris@16: namespace cpplexer {
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: //  The lex_input_interface decouples the lex_iterator_shim from the actual 
Chris@16: //  lexer. This is done to allow compile time reduction.
Chris@16: //  Thanks to JCAB for having this idea.
Chris@16: //
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: template <typename TokenT>
Chris@16: struct lex_input_interface 
Chris@16: {
Chris@16:     typedef typename TokenT::position_type position_type;
Chris@16: 
Chris@16:     lex_input_interface() {}
Chris@16:     virtual ~lex_input_interface() {}
Chris@16: 
Chris@16:     virtual TokenT& get(TokenT&) = 0;
Chris@16:     virtual void set_position(position_type const &pos) = 0;
Chris@16: #if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
Chris@16:     virtual bool has_include_guards(std::string& guard_name) const = 0;
Chris@16: #endif
Chris@16: };
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: }   // namespace cpplexer
Chris@16: }   // namespace wave
Chris@16: }   // namespace boost 
Chris@16: 
Chris@16: #ifdef BOOST_MSVC
Chris@16: #pragma warning(pop)
Chris@16: #endif
Chris@16: 
Chris@16: // the suffix header occurs after all of the code
Chris@16: #ifdef BOOST_HAS_ABI_HEADERS
Chris@16: #include BOOST_ABI_SUFFIX
Chris@16: #endif
Chris@16: 
Chris@16: #endif // !defined(CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED)