27 lines
433 B
Rust
27 lines
433 B
Rust
#![feature(const_trait_impl)]
|
|
|
|
struct S;
|
|
|
|
#[const_trait]
|
|
trait Foo {
|
|
fn eq(&self, _: &Self) -> bool;
|
|
}
|
|
|
|
impl Foo for S {
|
|
fn eq(&self, _: &S) -> bool {
|
|
true
|
|
}
|
|
}
|
|
|
|
const fn equals_self<T: ~const Foo>(t: &T) -> bool {
|
|
true
|
|
}
|
|
|
|
// Calling `equals_self` with something that has a non-const impl should throw an error, despite
|
|
// it not using the impl.
|
|
|
|
pub const EQ: bool = equals_self(&S);
|
|
//~^ ERROR
|
|
|
|
fn main() {}
|