LeafNode.cpp

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/* -*- C++ -*- */
#ifndef _LEAF_NODE_CPP_
#define _LEAF_NODE_CPP_
 
#ifndef _MADARA_NO_KARL_
 
#include <iostream>
 
#include "madara/expression/ComponentNode.h"
#include "madara/expression/Visitor.h"
#include "madara/expression/LeafNode.h"
 
// Ctor
madara::expression::LeafNode::LeafNode(
    logger::Logger& logger, const knowledge::KnowledgeRecord& item)
  : ComponentNode(logger), item_(item)
{
}
 
// Ctor
madara::expression::LeafNode::LeafNode(
    logger::Logger& logger, madara::knowledge::KnowledgeRecord::Integer item)
  : ComponentNode(logger)
{
  item_.set_value(item);
}
 
// Ctor
madara::expression::LeafNode::LeafNode(
    logger::Logger& logger, const std::string& item)
  : ComponentNode(logger)
{
  item_.set_value(item);
}
 
// Ctor
madara::expression::LeafNode::LeafNode(logger::Logger& logger, double item)
  : ComponentNode(logger)
{
  item_.set_value(item);
}
 
// Dtor
madara::expression::LeafNode::~LeafNode(void) {}
 
// return the item
madara::knowledge::KnowledgeRecord madara::expression::LeafNode::item(
    void) const
{
  return item_;
}
 
madara::knowledge::KnowledgeRecord madara::expression::LeafNode::prune(
    bool& can_change)
{
  can_change = false;
 
  // we could call item(), but since it is virtual, it incurs unnecessary
  // overhead.
  return item_;
}
 
madara::knowledge::KnowledgeRecord madara::expression::LeafNode::evaluate(
    const madara::knowledge::KnowledgeUpdateSettings& /*settings*/)
{
  // we could call item(), but since it is virtual, it incurs unnecessary
  // overhead.
  return item_;
}
 
void madara::expression::LeafNode::accept(Visitor& visitor) const
{
  visitor.visit(*this);
}
 
#endif  // _MADARA_NO_KARL_
 
#endif /* _LEAF_NODE_CPP_ */