attribute.hpp

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#pragma once
 
#include <fcb/error.hpp>
#include <fcb/header.hpp>
#include <fcb/span.hpp>
 
#include <cstdint>
#include <string>
#include <vector>
 
#ifdef FCB_WITH_JSON
#    include <nlohmann/json.hpp>
#endif
 
namespace fcb {
 
struct AttrValue {
    enum class Type {
        Null,
        Bool,
        Int,     // any signed integer column
        UInt,    // any unsigned integer column
        Double,  // Float or Double
        String,  // String or DateTime
        Json,    // Json column, still as its raw text
        Binary,  // Binary column; `s` holds the raw bytes
    };
 
    Type type = Type::Null;
    bool b = false;
    std::int64_t i = 0;
    std::uint64_t u = 0;
    double d = 0.0;
    std::string s;
};
 
std::vector<std::pair<std::string, AttrValue>>
decode_attributes(bytes_view blob, const std::vector<ColumnInfo>& schema);
 
#ifdef FCB_WITH_JSON
nlohmann::json attributes_to_json(bytes_view blob, const std::vector<ColumnInfo>& schema);
#endif
 
}  // namespace fcb