attrs.hh

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#pragma once
 
#include "lix/libutil/json-fwd.hh"
#include "lix/libutil/types.hh"
#include "lix/libutil/hash.hh"
 
#include <variant>
 
#include <optional>
 
namespace nix::fetchers {
 
typedef std::variant<std::string, uint64_t, Explicit<bool>> Attr;
typedef std::map<std::string, Attr> Attrs;
 
Attrs jsonToAttrs(const JSON & json);
 
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<uint64_t> maybeGetIntAttr(const Attrs & attrs, const std::string & name);
 
uint64_t getIntAttr(const Attrs & attrs, const std::string & name);
 
std::optional<bool> maybeGetBoolAttr(const Attrs & attrs, const std::string & name);
 
bool getBoolAttr(const Attrs & attrs, const std::string & name);
 
std::map<std::string, std::string> attrsToQuery(const Attrs & attrs);
 
}