smelt_stdlib/deps.rs
1//! Backend dependency metadata for standard-library mappings.
2
3/// Backend crate required by a standard-library mapping.
4#[derive(Clone, Copy, Debug, Eq, PartialEq, Hash)]
5#[non_exhaustive]
6pub enum BackendDependency {
7 /// `reqwest` for generated HTTP clients.
8 Reqwest,
9 /// `serde_json` for generated JSON parsing and serialization.
10 SerdeJson,
11 /// `regex` for generated regular-expression matching.
12 Regex,
13 /// `rand` for generated random values.
14 Rand,
15 /// `chrono` for generated date and datetime values.
16 Chrono,
17 /// `chrono-tz` for generated IANA time zone conversion.
18 ChronoTz,
19 /// `url` for generated URL parsing and field access.
20 Url,
21 /// `unicode-normalization` for generated `String.prototype.normalize`.
22 UnicodeNormalization,
23}
24
25impl BackendDependency {
26 /// Return the generated Cargo.toml dependency line for this backend crate.
27 #[must_use]
28 pub const fn cargo_dependency(self) -> &'static str {
29 match self {
30 Self::Reqwest => {
31 "reqwest = { version = \"0.12\", default-features = false, features = [\"blocking\", \"rustls-tls\"] }\n"
32 }
33 Self::SerdeJson => {
34 "serde = { version = \"1\", features = [\"derive\"] }\nserde_json = \"1\"\n"
35 }
36 Self::Regex => "regex = \"1\"\nfancy-regex = \"0.14\"\n",
37 Self::Rand => "rand = \"0.9\"\n",
38 Self::Chrono => "chrono = \"0.4\"\n",
39 Self::ChronoTz => "chrono-tz = \"0.10\"\n",
40 Self::Url => "url = \"2\"\n",
41 Self::UnicodeNormalization => "unicode-normalization = \"0.1\"\n",
42 }
43 }
44}