113 lines
2.6 KiB
C++
113 lines
2.6 KiB
C++
// end_node.hpp
|
|
// Copyright (c) 2005-2012 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 LEXERTL_END_NODE_HPP
|
|
#define LEXERTL_END_NODE_HPP
|
|
|
|
#include "node.hpp"
|
|
#include "../../size_t.hpp"
|
|
|
|
namespace lexertl
|
|
{
|
|
namespace detail
|
|
{
|
|
template<typename id_type>
|
|
class basic_end_node : public basic_node<id_type>
|
|
{
|
|
public:
|
|
typedef basic_node<id_type> node;
|
|
typedef typename node::bool_stack bool_stack;
|
|
typedef typename node::const_node_stack const_node_stack;
|
|
typedef typename node::node_ptr_vector node_ptr_vector;
|
|
typedef typename node::node_stack node_stack;
|
|
typedef typename node::node_type node_type;
|
|
typedef typename node::node_vector node_vector;
|
|
|
|
basic_end_node (const id_type id_, const id_type user_id_,
|
|
const id_type next_dfa_, const id_type push_dfa_,
|
|
const bool pop_dfa_) :
|
|
basic_node<id_type> (false),
|
|
_id (id_),
|
|
_user_id (user_id_),
|
|
_next_dfa (next_dfa_),
|
|
_push_dfa (push_dfa_),
|
|
_pop_dfa (pop_dfa_),
|
|
_followpos ()
|
|
{
|
|
basic_node<id_type>::_firstpos.push_back (this);
|
|
basic_node<id_type>::_lastpos.push_back (this);
|
|
}
|
|
|
|
virtual ~basic_end_node ()
|
|
{
|
|
}
|
|
|
|
virtual node_type what_type () const
|
|
{
|
|
return node::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 id_type id () const
|
|
{
|
|
return _id;
|
|
}
|
|
|
|
virtual id_type user_id () const
|
|
{
|
|
return _user_id;
|
|
}
|
|
|
|
virtual id_type next_dfa () const
|
|
{
|
|
return _next_dfa;
|
|
}
|
|
|
|
virtual id_type push_dfa () const
|
|
{
|
|
return _push_dfa;
|
|
}
|
|
|
|
virtual bool pop_dfa () const
|
|
{
|
|
return _pop_dfa;
|
|
}
|
|
|
|
private:
|
|
id_type _id;
|
|
id_type _user_id;
|
|
id_type _next_dfa;
|
|
id_type _push_dfa;
|
|
bool _pop_dfa;
|
|
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
|