rust/tests/ui/lint/unused/trait-alias-supertrait.rs
2024-02-16 20:02:50 +00:00

16 lines
299 B
Rust

//@ check-pass
// Make sure that we only consider *Self* supertrait predicates
// in the `unused_must_use` lint.
#![feature(trait_alias)]
#![deny(unused_must_use)]
trait Foo<T> = Sized where T: Iterator;
fn test<T: Iterator>() -> impl Foo<T> {}
fn main() {
test::<std::iter::Once<()>>();
}