mirror of https://github.com/rust-lang/rust
44 lines
647 B
Rust
44 lines
647 B
Rust
//@ run-pass
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trait Trait<const N: u8 = 12> {
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fn uwu(&self) -> u8 {
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N
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}
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}
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impl Trait for u32 {}
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impl Trait<12> for u64 {
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fn uwu(&self) -> u8 {
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*self as u8
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}
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}
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fn foo(arg: &dyn Trait) -> u8 {
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arg.uwu()
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}
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trait Traitor<const N: u8 = 1, const M: u8 = N> {
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fn owo(&self) -> u8 {
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M
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}
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}
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impl Traitor<2> for bool { }
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impl Traitor for u8 {
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fn owo(&self) -> u8 {
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*self
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}
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}
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fn bar<const N: u8>(arg: &dyn Traitor<N>) -> u8 {
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arg.owo()
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}
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fn main() {
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assert_eq!(foo(&10_u32), 12);
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assert_eq!(foo(&3_u64), 3);
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assert_eq!(bar(&true), 2);
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assert_eq!(bar(&1_u8), 1);
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}
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