rust/tests/ui/coherence/coherence-overlap-trait-alias.rs
2023-10-23 23:35:27 +00:00

19 lines
325 B
Rust

#![feature(rustc_attrs)]
#![feature(trait_alias)]
#![feature(with_negative_coherence)]
trait A {}
trait B {}
trait AB = A + B;
impl A for u32 {}
impl B for u32 {}
#[rustc_strict_coherence]
trait C {}
impl<T: AB> C for T {}
impl C for u32 {}
//~^ ERROR conflicting implementations of trait `C` for type `u32`
fn main() {}