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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/self/arbitrary_self_types_trait.rs | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/test/ui/self/arbitrary_self_types_trait.rs b/src/test/ui/self/arbitrary_self_types_trait.rs new file mode 100644 index 000000000..973c7cae8 --- /dev/null +++ b/src/test/ui/self/arbitrary_self_types_trait.rs @@ -0,0 +1,19 @@ +// run-pass + +use std::rc::Rc; + +trait Trait { + fn trait_method<'a>(self: &'a Box<Rc<Self>>) -> &'a [i32]; +} + +impl Trait for Vec<i32> { + fn trait_method<'a>(self: &'a Box<Rc<Self>>) -> &'a [i32] { + &***self + } +} + +fn main() { + let v = vec![1,2,3]; + + assert_eq!(&[1,2,3], Box::new(Rc::new(v)).trait_method()); +} |