diff options
Diffstat (limited to 'tests/ui/self/self-in-mut-slot-default-method.rs')
-rw-r--r-- | tests/ui/self/self-in-mut-slot-default-method.rs | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/self/self-in-mut-slot-default-method.rs b/tests/ui/self/self-in-mut-slot-default-method.rs new file mode 100644 index 000000000..45e122c8d --- /dev/null +++ b/tests/ui/self/self-in-mut-slot-default-method.rs @@ -0,0 +1,35 @@ +// run-pass + +struct X { + a: isize +} + +trait Changer : Sized { + fn change(mut self) -> Self { + self.set_to(55); + self + } + + fn change_again(mut self: Box<Self>) -> Box<Self> { + self.set_to(45); + self + } + + fn set_to(&mut self, a: isize); +} + +impl Changer for X { + fn set_to(&mut self, a: isize) { + self.a = a; + } +} + +pub fn main() { + let x = X { a: 32 }; + let new_x = x.change(); + assert_eq!(new_x.a, 55); + + let x: Box<_> = Box::new(new_x); + let new_x = x.change_again(); + assert_eq!(new_x.a, 45); +} |