aboutsummaryrefslogtreecommitdiff
path: root/src/libstore/fetchers/attrs.hh
blob: 2c9e772d25b17019433a3763617e76bde35a63a9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
#pragma once

#include "types.hh"

#include <variant>

#include <nlohmann/json_fwd.hpp>

namespace nix::fetchers {

/* Wrap bools to prevent string literals (i.e. 'char *') from being
   cast to a bool in Attr. */
template<typename T>
struct Explicit {
    T t;
};

typedef std::variant<std::string, int64_t, Explicit<bool>> 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);

std::optional<bool> maybeGetBoolAttr(const Attrs & attrs, const std::string & name);

bool getBoolAttr(const Attrs & attrs, const std::string & name);

}