| //@ run-pass |
| |
| // Tests that we can combine a default impl that supplies one method with a |
| // full impl that supplies the other, and they can invoke one another. |
| |
| #![feature(specialization)] //~ WARN the feature `specialization` is incomplete |
| |
| trait Foo { |
| fn foo_one(&self) -> &'static str; |
| fn foo_two(&self) -> &'static str; |
| fn foo_three(&self) -> &'static str; |
| } |
| |
| struct MyStruct; |
| |
| default impl<T> Foo for T { |
| fn foo_one(&self) -> &'static str { |
| self.foo_three() |
| } |
| } |
| |
| impl Foo for MyStruct { |
| fn foo_two(&self) -> &'static str { |
| self.foo_one() |
| } |
| |
| fn foo_three(&self) -> &'static str { |
| "generic" |
| } |
| } |
| |
| fn main() { |
| assert!(MyStruct.foo_two() == "generic"); |
| } |
