DataStructure.h

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#ifndef DATA_STRUCTURE_H
#define DATA_STRUCTURE_H
 
#include <string> //string
#include <rapidjson/document.h>
using namespace std;
 
namespace bridges {
    class Bridges; //forward declaration
 
    //  string constants  for use in constructing JSON
    //  representation of the data structure
    const string
    QUOTE = "\"",
    COMMA = ",",
    COLON = ":",
    OPEN_CURLY = "{",
    CLOSE_CURLY = "}",
    OPEN_BOX = "[",
    CLOSE_BOX = "]",
    OPEN_PARENS = "(",
    CLOSE_PARENS = ")";
    namespace datastructure {
 
        // Maximum number of elements that can be visualized
        constexpr int MAX_ELEMENTS_ALLOWED = 5000;
 
        class DataStructure {
                // Used for access to getDataStructureRepresentation()
                friend class bridges::Bridges;
                //          friend void Bridges::visualize();
 
            public:
                virtual ~DataStructure() = default;
 
                virtual const string getDStype() const = 0;
 
            private:
                virtual const string getDataStructureRepresentation() const = 0;
                //              virtual void getDataStructureRepresentation(rapidjson::Document& d) const = 0;
 
        };  //end of DataStructure class
    }
}   //end of bridges namespace
#endif