CompositeForLoop.h

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/* -*- C++ -*- */
#ifndef _MADARA_COMPOSITE_FOR_LOOP_H_
#define _MADARA_COMPOSITE_FOR_LOOP_H_
 
#ifndef _MADARA_NO_KARL_
 
#include "madara/expression/ComponentNode.h"
#include "madara/knowledge/ThreadSafeContext.h"
#include "madara/knowledge/Functions.h"
#include "madara/knowledge/KnowledgeRecord.h"
 
namespace madara
{
namespace expression
{
class ComponentNode;
class Visitor;
 
class CompositeForLoop : public ComponentNode
{
public:
  CompositeForLoop(ComponentNode* precondition, ComponentNode* condition,
      ComponentNode* postcondition, ComponentNode* body,
      madara::knowledge::ThreadSafeContext& context);
 
  virtual ~CompositeForLoop(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:
  // variables context
  // madara::knowledge::ThreadSafeContext & context_;
 
  // the loop precondition (what happens before the loop)
  ComponentNode* precondition_;
 
  // the loop condition (what must be true to continue looping)
  ComponentNode* condition_;
 
  // the postcondition (what happens after a loop)
  ComponentNode* postcondition_;
 
  // the body (what happens after a condition is true--the loop contents)
  ComponentNode* body_;
 
  // function pointer
  // madara::knowledge::Function * function_;
};
}
}
 
#endif  // _MADARA_NO_KARL_
 
#endif /* _MADARA_COMPOSITE_FOR_LOOP_H_ */