lix/src/libstore/fetchers/attrs.hh

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2020-03-17 19:54:36 +00:00
#pragma once
#include "types.hh"
#include <variant>
#include <nlohmann/json_fwd.hpp>
namespace nix::fetchers {
typedef std::variant<std::string, int64_t> Attr;
typedef std::map<std::string, Attr> Attrs;
Attrs jsonToAttrs(const nlohmann::json & json);
nlohmann::json attrsToJson(const Attrs & attrs);
std::optional<std::string> maybeGetStrAttr(const Attrs & attrs, const std::string & name);
std::string getStrAttr(const Attrs & attrs, const std::string & name);
std::optional<int64_t> maybeGetIntAttr(const Attrs & attrs, const std::string & name);
int64_t getIntAttr(const Attrs & attrs, const std::string & name);
}