| //@ 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); |
| } |
