CompiledExpression.h

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#ifndef _MADARA_COMPILED_EXPRESSION_H_
#define _MADARA_COMPILED_EXPRESSION_H_

#ifndef _MADARA_NO_KARL_

#include <string>
#include "madara/MadaraExport.h"
#include "madara/expression/ExpressionTree.h"

namespace madara
{
  namespace expression
  {
    class SystemCallEval;
  }
  namespace knowledge
  {
    class ThreadSafeContext;
    class KnolwedgeBaseImpl;
    class Variables;
    class KnowledgeBase;

    class MADARA_EXPORT CompiledExpression
    {
    public:
      //class KnowledgeBaseImpl;
      friend class ThreadSafeContext;
      friend class KnowledgeBaseImpl;
      friend class Variables;
      friend class KnowledgeBase;
      friend class expression::SystemCallEval;

      CompiledExpression ();

      CompiledExpression (const CompiledExpression & ce);

      ~CompiledExpression ();

      void operator= (const CompiledExpression & ce);
      
      expression::ComponentNode * get_root (void);

    private:
      std::string logic;

      madara::expression::ExpressionTree expression;
    };
  }
}

#endif // _MADARA_NO_KARL_

#endif // _MADARA_COMPILED_EXPRESSION_H_