mirror of
https://github.com/NixOS/nix.git
synced 2025-11-26 20:20:58 +01:00
84e2963f8e
This will facilitate breaking up Nix into multiple packages for each component with Meson.
44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
#pragma once
|
|
///@file
|
|
|
|
#include "types.hh"
|
|
#include "hash.hh"
|
|
|
|
#include <variant>
|
|
|
|
#include <nlohmann/json_fwd.hpp>
|
|
|
|
#include <optional>
|
|
|
|
namespace nix::fetchers {
|
|
|
|
typedef std::variant<std::string, uint64_t, Explicit<bool>> Attr;
|
|
|
|
/**
|
|
* An `Attrs` can be thought of a JSON object restricted or simplified
|
|
* to be "flat", not containing any subcontainers (arrays or objects)
|
|
* and also not containing any `null`s.
|
|
*/
|
|
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<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);
|
|
|
|
Hash getRevAttr(const Attrs & attrs, const std::string & name);
|
|
|
|
}
|