operation.h

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#ifndef __MEOWPP_UTILITY_OPERATION_H__
#define __MEOWPP_UTILITY_OPERATION_H__

#include "../debug/assert.h"
#include "object.h"
#include "pointer.h"
#include "state.h"

namespace meow {


class Operation : public Object {
 private:
  int inputs_size_;
  int outputs_size_;

 protected:

  Operation(int arg_inputs_size, int arg_outputs_size) :
      inputs_size_(arg_inputs_size), outputs_size_(arg_outputs_size) {}

 public:

  virtual ~Operation() {}

  virtual State Operate(Pointer<Object const> const * inputs_ptr,
                        Pointer<Object> const * outputs_ptr) const = 0;

  int inputs_size() const {
    return inputs_size_;
  }

  int outputs_size() const {
    return outputs_size_;
  }

#ifdef MEOWPP_UTILITY_OPERATION_TESTING
  friend class OperationTest;
#endif // MEOWPP_UTILITY_OPERATION_TESTING

};

}  // meow

#endif  // __MEOWPP_UTILITY_OPERATION_H__