| // run-pass | |
| #![feature(marker_trait_attr)] | |
| #![feature(specialization)] //~ WARN the feature `specialization` is incomplete | |
| #[marker] | |
| trait MyMarker {} | |
| impl<T> MyMarker for T {} | |
| impl<T> MyMarker for Vec<T> {} | |
| fn foo<T: MyMarker>(t: T) -> T { | |
| t | |
| } | |
| fn main() { | |
| assert_eq!(1, foo(1)); | |
| assert_eq!(2.0, foo(2.0)); | |
| assert_eq!(vec![1], foo(vec![1])); | |
| } |