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
|
use super::UnstableFeatures;
#[test]
fn rustc_bootstrap_parsing() {
let is_bootstrap = |env: &str, krate: Option<&str>| {
matches!(
UnstableFeatures::from_environment_value(krate, Ok(env.to_string())),
UnstableFeatures::Cheat
)
};
assert!(is_bootstrap("1", None));
assert!(is_bootstrap("1", Some("x")));
// RUSTC_BOOTSTRAP allows specifying a specific crate
assert!(is_bootstrap("x", Some("x")));
// RUSTC_BOOTSTRAP allows multiple comma-delimited crates
assert!(is_bootstrap("x,y,z", Some("x")));
assert!(is_bootstrap("x,y,z", Some("y")));
// Crate that aren't specified do not get unstable features
assert!(!is_bootstrap("x", Some("a")));
assert!(!is_bootstrap("x,y,z", Some("a")));
assert!(!is_bootstrap("x,y,z", None));
// `RUSTC_BOOTSTRAP=0` is not recognized.
assert!(!is_bootstrap("0", None));
// `RUSTC_BOOTSTRAP=-1` is force-stable, no unstable features allowed.
let is_force_stable = |krate: Option<&str>| {
matches!(
UnstableFeatures::from_environment_value(krate, Ok("-1".to_string())),
UnstableFeatures::Disallow
)
};
assert!(is_force_stable(None));
// Does not support specifying any crate.
assert!(is_force_stable(Some("x")));
assert!(is_force_stable(Some("x,y,z")));
}
|
