[rustc.git] / src / test / ui / lint / lint-dead-code-impl-trait.rs

#![deny(dead_code)]

trait Trait {
    type Type;
}

impl Trait for () {
    type Type = ();
}

type Used = ();
type Unused = (); //~ ERROR type alias is never used

fn foo() -> impl Trait<Type = Used> {}

fn main() {
    foo();
}
Commit	Line	Data
532ac7d7 XL	1	#![deny(dead_code)]
	2
	3	trait Trait {
	4	type Type;
	5	}
	6
	7	impl Trait for () {
	8	type Type = ();
	9	}
	10
	11	type Used = ();
	12	type Unused = (); //~ ERROR type alias is never used
	13
	14	fn foo() -> impl Trait<Type = Used> {}
	15
	16	fn main() {
	17	foo();
	18	}