rust/tests/ui/traits/multidispatch2.rs
2024-02-16 20:02:50 +00:00

39 lines
561 B
Rust

//@ run-pass
use std::fmt::Debug;
trait MyTrait<T> {
fn get(&self) -> T;
}
impl<T> MyTrait<T> for T
where T : Default
{
fn get(&self) -> T {
Default::default()
}
}
#[derive(Copy, Clone)]
struct MyType {
dummy: usize
}
impl MyTrait<usize> for MyType {
fn get(&self) -> usize { self.dummy }
}
fn test_eq<T,M>(m: M, v: T)
where T : Eq + Debug,
M : MyTrait<T>
{
assert_eq!(m.get(), v);
}
pub fn main() {
test_eq(22_usize, 0_usize);
let value = MyType { dummy: 256 + 22 };
test_eq(value, value.dummy);
}