Program Listing for File Quad.hpp

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#ifndef RDF4CPP_QUAD_HPP
#define RDF4CPP_QUAD_HPP

#include <rdf4cpp/Statement.hpp>
#include <rdf4cpp/query/QuadPattern.hpp>

namespace rdf4cpp {

struct Quad : query::QuadPattern {

    Quad() noexcept = default;

    Quad(Node subject, Node predicate, Node object) noexcept;

    Quad(Node graph, Node subject, Node predicate, Node object) noexcept;


    [[nodiscard]] bool valid() const noexcept;

    static std::optional<Quad> create_validated(Node graph, Node subject, Node predicate, Node object) noexcept;

    static std::optional<Quad> create_validated(Node subject, Node predicate, Node object) noexcept;

    [[nodiscard]] Statement const &without_graph() const noexcept;

    [[nodiscard]] Quad to_node_storage(storage::DynNodeStoragePtr node_storage) const;
    [[nodiscard]] Quad try_get_in_node_storage(storage::DynNodeStoragePtr node_storage) const noexcept;

    bool serialize_ntriples(writer::BufWriterParts writer) const noexcept;
    bool serialize_nquads(writer::BufWriterParts writer) const noexcept;
    bool serialize_turtle(writer::SerializationState &state, writer::BufWriterParts writer) const noexcept;
    bool serialize_trig(writer::SerializationState &state, writer::BufWriterParts writer) const noexcept;
};
}  // namespace rdf4cpp

template<typename Policy>
struct dice::hash::dice_hash_overload<Policy, rdf4cpp::Quad> {
    static inline size_t dice_hash(rdf4cpp::Quad const &x) noexcept {
        return dice::hash::dice_hash_templates<Policy>::dice_hash(std::tie(x.graph(), x.subject(), x.predicate(), x.object()));
    }
};

#endif  //RDF4CPP_QUAD_HPP