CompositeEqualityNode.h

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#ifndef _MADARA_COMPOSITE_EQUALITY_NODE_H_
#define _MADARA_COMPOSITE_EQUALITY_NODE_H_

#ifndef _MADARA_NO_KARL_

#include "madara/expression/CompositeBinaryNode.h"
#include "madara/knowledge/KnowledgeRecord.h"

namespace madara
{
  namespace expression
  {
    // Forward declaration.
    class ComponentNode;
    class Visitor;

    class CompositeEqualityNode : public CompositeBinaryNode
    {
    public:
      CompositeEqualityNode (logger::Logger & logger,
        ComponentNode *left,
        ComponentNode *right);

      virtual madara::knowledge::KnowledgeRecord item (void) const;

      virtual madara::knowledge::KnowledgeRecord prune (bool & can_change);

      virtual madara::knowledge::KnowledgeRecord evaluate (
        const madara::knowledge::KnowledgeUpdateSettings & settings);

      virtual void accept (Visitor &visitor) const;
    };
  }
}

#endif // _MADARA_NO_KARL_


#endif // _MADARA_COMPOSITE_EQUALITY_NODE_H_