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// run-pass
trait Trait<const N: u8 = 12> {
fn uwu(&self) -> u8 {
N
}
}
impl Trait for u32 {}
impl Trait<12> for u64 {
fn uwu(&self) -> u8 {
*self as u8
}
}
fn foo(arg: &dyn Trait) -> u8 {
arg.uwu()
}
trait Traitor<const N: u8 = 1, const M: u8 = N> {
fn owo(&self) -> u8 {
M
}
}
impl Traitor<2> for bool { }
impl Traitor for u8 {
fn owo(&self) -> u8 {
*self
}
}
fn bar<const N: u8>(arg: &dyn Traitor<N>) -> u8 {
arg.owo()
}
fn main() {
assert_eq!(foo(&10_u32), 12);
assert_eq!(foo(&3_u64), 3);
assert_eq!(bar(&true), 2);
assert_eq!(bar(&1_u8), 1);
}
|
