44 lines
646 B
Rust
44 lines
646 B
Rust
// 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);
|
|
}
|