rust/tests/ui/derive-uninhabited-enum-38885.rs
2023-01-11 09:32:08 +00:00

20 lines
348 B
Rust

// 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 variant `Void` is never constructed
}
fn main() {
let x = Foo::Bar(42);
println!("{:?}", x);
}