This commit is contained in:
Jonas Schievink 2020-12-18 20:01:02 +01:00
parent d42d1d33f0
commit 382ee2fa03

View file

@ -119,3 +119,19 @@ fn inactive_item() {
"#,
);
}
/// Tests that `cfg` attributes behind `cfg_attr` is handled properly.
#[test]
fn inactive_via_cfg_attr() {
check_diagnostics(
r#"
//- /lib.rs
#[cfg_attr(not(never), cfg(no))] fn f() {}
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: no is disabled
#[cfg_attr(not(never), cfg(not(no)))] fn f() {}
#[cfg_attr(never, cfg(no))] fn g() {}
"#,
);
}