rust/tests/ui/coherence/coherence-where-clause.rs
2024-02-16 20:02:50 +00:00

37 lines
560 B
Rust

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