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#![deny(dead_code)]
struct T1; //~ ERROR struct `T1` is never constructed
pub struct T2(i32); //~ ERROR field `0` is never read
struct T3;
trait Trait1 { //~ ERROR trait `Trait1` is never used
const UNUSED: i32;
fn unused(&self) {}
fn construct_self() -> Self;
}
pub trait Trait2 {
const USED: i32;
fn used(&self) {}
}
pub trait Trait3 {
const USED: i32;
fn construct_self() -> Self;
}
impl Trait1 for T1 {
const UNUSED: i32 = 0;
fn construct_self() -> Self {
Self
}
}
impl Trait1 for T2 {
const UNUSED: i32 = 0;
fn construct_self() -> Self {
T2(0)
}
}
impl Trait2 for T1 {
const USED: i32 = 0;
}
impl Trait2 for T2 {
const USED: i32 = 0;
}
impl Trait3 for T3 {
const USED: i32 = 0;
fn construct_self() -> Self {
Self
}
}
fn main() {}
|
