| /*============================================================================= |
| Boost.Wave: A Standard compliant C++ preprocessor library |
| |
| Definition of the abstract lexer interface |
| |
| http://www.boost.org/ |
| |
| Copyright (c) 2001-2010 Hartmut Kaiser. Distributed under 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) |
| =============================================================================*/ |
| |
| #if !defined(CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED) |
| #define CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED |
| |
| #include <boost/wave/wave_config.hpp> |
| #include <boost/wave/util/file_position.hpp> |
| #include <boost/wave/language_support.hpp> |
| |
| // this must occur after all of the includes and before any code appears |
| #ifdef BOOST_HAS_ABI_HEADERS |
| #include BOOST_ABI_PREFIX |
| #endif |
| |
| // suppress warnings about dependent classes not being exported from the dll |
| #ifdef BOOST_MSVC |
| #pragma warning(push) |
| #pragma warning(disable : 4251 4231 4660) |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| namespace boost { |
| namespace wave { |
| namespace cpplexer { |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // |
| // The lex_input_interface decouples the lex_iterator_shim from the actual |
| // lexer. This is done to allow compile time reduction. |
| // Thanks to JCAB for having this idea. |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| template <typename TokenT> |
| struct lex_input_interface |
| { |
| typedef typename TokenT::position_type position_type; |
| |
| lex_input_interface() {} |
| virtual ~lex_input_interface() {} |
| |
| virtual TokenT& get(TokenT&) = 0; |
| virtual void set_position(position_type const &pos) = 0; |
| #if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0 |
| virtual bool has_include_guards(std::string& guard_name) const = 0; |
| #endif |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| } // namespace cpplexer |
| } // namespace wave |
| } // namespace boost |
| |
| #ifdef BOOST_MSVC |
| #pragma warning(pop) |
| #endif |
| |
| // the suffix header occurs after all of the code |
| #ifdef BOOST_HAS_ABI_HEADERS |
| #include BOOST_ABI_SUFFIX |
| #endif |
| |
| #endif // !defined(CPP_LEX_INTERFACE_HPP_E83F52A4_90AC_4FBE_A9A7_B65F7F94C497_INCLUDED) |