Edge.hpp

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// Copyright (c) 2017 Czech Technical University in Prague | Faculty of Information Technology. All rights reserved.
 
#pragma once
 
#include <sstream>
#include <alib/pair>
#include <alib/tuple>
#include <object/Object.h>
 
#include "EdgeBase.hpp"
#include "EdgeFeatures.hpp"
 
namespace edge {
 
template<typename TNode>
class Edge : public ext::pair<TNode, TNode>, public EdgeBase {
// ---------------------------------------------------------------------------------------------------------------------
 public:
  using node_type = TNode;
  using normalized_type = Edge<>;
 
// ---------------------------------------------------------------------------------------------------------------------
// =====================================================================================================================
// Constructor, Destructor, Operators
 
 public:
  explicit Edge(TNode _first, TNode _second);
 
// =====================================================================================================================
// EdgeBase interface
 
 public:
    auto operator <=> (const Edge &other) const {
        return ext::tie(this->first, this->second) <=> ext::tie(other.first, other.second);
    }
 
    bool operator == (const Edge &other) const {
        return ext::tie(this->first, this->second) == ext::tie(other.first, other.second);
    }
 
  void operator>>(ext::ostream &ostream) const override;
 
// =====================================================================================================================
 public:
 
  virtual std::string name() const;
 
// ---------------------------------------------------------------------------------------------------------------------
};
// =====================================================================================================================
 
template<typename TNode>
Edge<TNode>::Edge(TNode _first, TNode _second)
    : ext::pair<TNode, TNode>(_first, _second) {
 
}
 
// ---------------------------------------------------------------------------------------------------------------------
 
template<typename TNode>
std::string Edge<TNode>::name() const {
  return "Edge";
}
 
// ---------------------------------------------------------------------------------------------------------------------
 
template<typename TNode>
void Edge<TNode>::operator>>(ext::ostream &ostream) const {
  ostream << "(" << name() << "(first=" << this->first << ", second=" << this->second << "))";
}
 
// ---------------------------------------------------------------------------------------------------------------------
 
} // namespace edge
 
// =====================================================================================================================