[rustc.git] / src / test / ui / derive-uninhabited-enum-38885.rs

// build-pass (FIXME(62277): could be check-pass?)
// compile-flags: -Wunused

// ensure there are no special warnings about uninhabited types
// when deriving Debug on an empty enum

#[derive(Debug)]
enum Void {}

#[derive(Debug)]
enum Foo {
    Bar(u8),
    Void(Void), //~ WARN never used
}

fn main() {
    let x = Foo::Bar(42);
    println!("{:?}", x);
}
Commit	Line	Data
416331ca	1	// build-pass (FIXME(62277): could be check-pass?)
a1dfa0c6	2	// compile-flags: -Wunused
94b46f34	3
a1dfa0c6 XL	4	// ensure there are no special warnings about uninhabited types
a1dfa0c6 XL	5	// when deriving Debug on an empty enum
94b46f34	6
a1dfa0c6	7	#[derive(Debug)]
e1599b0c	8	enum Void {}
94b46f34	9
a1dfa0c6	10	#[derive(Debug)]
e1599b0c	11	enum Foo {
a1dfa0c6	12	Bar(u8),
e1599b0c	13	Void(Void), //~ WARN never used
94b46f34	14	}
a1dfa0c6	15
e1599b0c XL	16	fn main() {
	17	let x = Foo::Bar(42);
	18	println!("{:?}", x);
	19	}