JsonNull.h

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#ifndef ZYPP_CORE_PARSER_JSON_JSON_NULL_DEFINED
#define ZYPP_CORE_PARSER_JSON_JSON_NULL_DEFINED
 
#include <string_view>
#include <string>
#include <ostream>
 
#include <zypp-core/Globals.h>
 
namespace zypp::json {
 
  static constexpr std::string_view nullJSON ("null");
 
  class ZYPP_API Null {
 
  public:
    Null() = default;
    Null(std::nullptr_t){}
 
    ~Null() = default;
 
    Null( const Null & ) = default;
    Null( Null && ) = default;
    Null &operator=(const Null &) = default;
    Null &operator=(Null &&) = default;

    std::string asJSON() const
    { return std::string(nullJSON); }

    std::ostream & dumpOn( std::ostream & str ) const
    { return str << nullJSON; }
 
    // comparison
    bool operator==( const Null & ) const { return true; }
 
  };

  inline ZYPP_API std::ostream & operator<<( std::ostream & str, const Null & obj )
  {
    return obj.dumpOn( str );
  }
}
 
#endif