JsonParser.h

/*
Original authors:
 
Universite Libre de Bruxelles, Brussels, Belgium:
  Sarah Fachada, Sarah.Fernandes.Pinto.Fachada@ulb.ac.be
  Daniele Bonatto, Daniele.Bonatto@ulb.ac.be
  Arnaud Schenkel, arnaud.schenkel@ulb.ac.be
 
Koninklijke Philips N.V., Eindhoven, The Netherlands:
  Bart Kroon, bart.kroon@philips.com
  Bart Sonneveldt, bart.sonneveldt@philips.com
*/
#ifndef RVSOCULUS_JSONPARSER_H
#define RVSOCULUS_JSONPARSER_H
 
#include <iosfwd>
#include <string>
#include <memory>
 
namespace json
{
    struct Value;
    struct Object;
 
    class Node
    {
    public:
        enum class Type
        {
            number,
            string,
            array,
            object,
            boolean,
            null
        };
 
        static Node readFrom(std::istream&);
 
        /* Specify overrides (for Object only) */
        void setOverrides(Node overrides);
 
        Type type() const;
 
        Node optional(std::string const& key) const;
 
        Node require(std::string const& key) const;
 
        Node at(std::size_t index) const;
 
        std::size_t size() const;
 
        double asDouble() const;
 
        float asFloat() const;
 
        int asInt() const;
 
        std::string const& asString() const;
 
        bool asBool() const;
 
        operator bool() const;
 
    private:
        Node();
        Node(std::shared_ptr<Value>);
 
        std::shared_ptr<Value> m_value;
        std::shared_ptr<Object> m_overrides;
    };
}
#endif //RVSOCULUS_JSONPARSER_H