Atomic.h

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/*
 * This file is part of KnowRob, please consult
 * https://github.com/knowrob/knowrob for license details.
 */
 
#ifndef KNOWROB_ATOMIC_H
#define KNOWROB_ATOMIC_H
 
#include "Term.h"
#include "XSDType.h"
#include <sstream>
 
namespace knowrob {
    enum class AtomicType {
        ATOM,
        NUMERIC,
        STRING
    };
 
    // forward declaration
    class Triple;
 
    class Atomic : public Term {
    public:
        explicit Atomic(AtomicType atomicType)
                : Term(TermType::ATOMIC), atomicType_(atomicType) {}
 
        ~Atomic() override = default;
 
        bool isSameAtomic(const Atomic &other) const;
 
        AtomicType atomicType() const { return atomicType_; }
 
        size_t hashOfAtomic() const;
 
        virtual std::string_view stringForm() const = 0;
 
        static std::shared_ptr<Atomic> makeTripleValue(const Triple &triple);
 
        // Override Term
        const std::set<std::string_view> &variables() const final { return Term::noVariables_; }
 
        // override Printable
        void write(std::ostream &os) const override { os << stringForm(); }
 
    protected:
        const AtomicType atomicType_;
    };
} // knowrob
 
#endif //KNOWROB_ATOMIC_H