| // end_node.hpp |
| // Copyright (c) 2007-2009 Ben Hanson (http://www.benhanson.net/) |
| // |
| // Distributed under the Boost Software License, Version 1.0. (See accompanying |
| // file licence_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| #ifndef BOOST_LEXER_END_NODE_HPP |
| #define BOOST_LEXER_END_NODE_HPP |
| |
| #include "node.hpp" |
| #include "../../size_t.hpp" |
| |
| namespace boost |
| { |
| namespace lexer |
| { |
| namespace detail |
| { |
| class end_node : public node |
| { |
| public: |
| end_node (const std::size_t id_, const std::size_t unique_id_, |
| const std::size_t lexer_state_) : |
| node (false), |
| _id (id_), |
| _unique_id (unique_id_), |
| _lexer_state (lexer_state_) |
| { |
| node::_firstpos.push_back (this); |
| node::_lastpos.push_back (this); |
| } |
| |
| virtual ~end_node () |
| { |
| } |
| |
| virtual type what_type () const |
| { |
| return END; |
| } |
| |
| virtual bool traverse (const_node_stack &/*node_stack_*/, |
| bool_stack &/*perform_op_stack_*/) const |
| { |
| return false; |
| } |
| |
| virtual const node_vector &followpos () const |
| { |
| // _followpos is always empty..! |
| return _followpos; |
| } |
| |
| virtual bool end_state () const |
| { |
| return true; |
| } |
| |
| virtual std::size_t id () const |
| { |
| return _id; |
| } |
| |
| virtual std::size_t unique_id () const |
| { |
| return _unique_id; |
| } |
| |
| virtual std::size_t lexer_state () const |
| { |
| return _lexer_state; |
| } |
| |
| private: |
| std::size_t _id; |
| std::size_t _unique_id; |
| std::size_t _lexer_state; |
| node_vector _followpos; |
| |
| virtual void copy_node (node_ptr_vector &/*node_ptr_vector_*/, |
| node_stack &/*new_node_stack_*/, bool_stack &/*perform_op_stack_*/, |
| bool &/*down_*/) const |
| { |
| // Nothing to do, as end_nodes are not copied. |
| } |
| }; |
| } |
| } |
| } |
| |
| #endif |