#![deny(dead_code)] | |
#[derive(Default)] | |
struct T; //~ ERROR struct `T` is never constructed | |
#[derive(Default)] | |
struct Used; | |
#[derive(Default)] | |
enum E { | |
#[default] | |
A, | |
B, //~ ERROR variant `B` is never constructed | |
} | |
// external crate can call T2::default() to construct T2, | |
// so that no warnings for pub adts | |
#[derive(Default)] | |
pub struct T2 { | |
_unread: i32, | |
} | |
fn main() { | |
let _x: Used = Default::default(); | |
} |