mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-27 09:14:20 +00:00
18 lines
358 B
Rust
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() {}
|