rust/tests/ui/variance/variance-associated-consts.rs
2024-03-07 06:27:09 +00:00

19 lines
395 B
Rust

// Test that the variance computation considers types that
// appear in const expressions to be invariant.
#![feature(rustc_attrs)]
#![allow(incomplete_features)]
#![feature(generic_const_exprs)]
trait Trait {
const Const: usize;
}
#[rustc_variance]
struct Foo<T: Trait> { //~ ERROR [o]
field: [u8; <T as Trait>::Const]
//~^ ERROR: unconstrained generic constant
}
fn main() { }