// EdoTypeKey.h

#ifndef hes_EdoTypeKey_H
#define hes_EdoTypeKey_H

// David Adams
// February 2002
//
// EDO type-key.

#include <string>
#include <vector>
#include <iosfwd>

#include "EdoType.h"
#include "EdoKey.h"

namespace hes {

class EdoTypeKey {

private:  // data

  EdoType m_type;
  EdoKey m_key;

public:  // methods

  // Default constructor.
  // Leaves type-key in an invalid state.
  EdoTypeKey();

  // Constructor from a type and key.
  // Both must be valid for the type-key to be valid.
  EdoTypeKey(hes::EdoType type, hes::EdoKey key);

  // Return if this is avalid type-key.
  // Both type and key must be valid.
  bool is_valid() const;

  // Return the type.
  EdoType type() const;

  // Return the key.
  EdoKey key() const;

};

}  // end namespace

// Ordering.
bool operator<(const hes::EdoTypeKey& lhs, const hes::EdoTypeKey& rhs);

// Equality.
bool operator==(const hes::EdoTypeKey& lhs, const hes::EdoTypeKey& rhs);

// Inequality
bool operator!=(const hes::EdoTypeKey& lhs, const hes::EdoTypeKey& rhs);

// Output stream.
std::ostream& operator<<(std::ostream& lhs, const hes::EdoTypeKey& rhs);

#endif