rust/tests/ui/specialization/specialization-polarity.rs
2023-01-11 09:32:08 +00:00

18 lines
358 B
Rust

// Make sure specialization cannot change impl polarity
#![feature(auto_traits)]
#![feature(negative_impls)]
#![feature(specialization)] //~ WARN the feature `specialization` is incomplete
auto trait Foo {}
impl<T> Foo for T {}
impl !Foo for u8 {} //~ ERROR E0751
auto trait Bar {}
impl<T> !Bar for T {}
impl Bar for u8 {} //~ ERROR E0751
fn main() {}