CompositeFunctionNode.h

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/* -*- C++ -*- */
#ifndef _MADARA_COMPOSITE_FUNCTION_NODE_H_
#define _MADARA_COMPOSITE_FUNCTION_NODE_H_
 
#ifndef _MADARA_NO_KARL_
 
#include <vector>
#include "madara/knowledge/KnowledgeRecord.h"
#include "madara/expression/CompositeTernaryNode.h"
#include "madara/knowledge/Functions.h"
#include "madara/knowledge/ThreadSafeContext.h"
 
namespace madara
{
namespace expression
{
class ComponentNode;
class Visitor;
 
class CompositeFunctionNode : public CompositeTernaryNode
{
public:
  CompositeFunctionNode(const std::string& name,
      madara::knowledge::ThreadSafeContext& context,
      const ComponentNodes& nodes);
 
  virtual ~CompositeFunctionNode(void);
 
  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;
 
private:
  // function name
  const std::string name_;
 
  // variables context
  knowledge::ThreadSafeContext& context_;
 
  // function pointer
  knowledge::Function* function_;
 
  // pointers to .1, .2, .3, etc.
  std::vector<knowledge::KnowledgeRecord*> compiled_args_;
};
}
}
 
#endif  // _MADARA_NO_KARL_
 
#endif /* _MADARA_COMPOSITE_FUNCTION_NODE_H_ */