rust/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/helloworld.rs
2023-08-06 13:34:53 +00:00

28 lines
525 B
Rust

// check-pass
// gate-test-effects
// ^ effects doesn't have a gate so we will trick tidy into thinking this is a gate test
#![feature(const_trait_impl, effects, rustc_attrs)]
// ensure we are passing in the correct host effect in always const contexts.
pub const fn hmm<T, #[rustc_host] const host: bool = true>() -> usize {
if host {
1
} else {
0
}
}
const _: () = {
let x = hmm::<()>();
assert!(0 == x);
};
pub const fn uwu(x: [u8; hmm::<()>()]) {
let [] = x;
}
fn main() {}