//@ run-pass #![allow(dead_code)] // Testing that supertrait methods can be called on subtrait object types trait Foo { fn f(&self) -> isize; } trait Bar : Foo { fn g(&self) -> isize; } struct A { x: isize } impl Foo for A { fn f(&self) -> isize { 10 } } impl Bar for A { fn g(&self) -> isize { 20 } } pub fn main() { let a = &A { x: 3 }; let afoo = a as &dyn Foo; let abar = a as &dyn Bar; assert_eq!(afoo.f(), 10); assert_eq!(abar.g(), 20); assert_eq!(abar.f(), 10); }