3 #![feature(destructuring_assignment)]
5 struct TupleStruct<S, T>(S, T);
7 impl<S, T> TupleStruct<S, T> {
8 fn assign(self, first: &mut S, second: &mut T) {
9 // Test usage of `Self` instead of the struct name:
10 Self(*first, *second) = self
18 type Alias<S> = Enum<S, isize>;
22 TupleStruct(a, b) = TupleStruct(0, 1);
23 assert_eq!((a, b), (0, 1));
24 TupleStruct(a, .., b) = TupleStruct(1, 2);
25 assert_eq!((a, b), (1, 2));
26 TupleStruct(..) = TupleStruct(3, 4);
27 assert_eq!((a, b), (1, 2));
28 TupleStruct(5,6).assign(&mut a, &mut b);
29 assert_eq!((a, b), (5, 6));
30 Enum::SingleVariant(a, b) = Enum::SingleVariant(7, 8);
31 assert_eq!((a, b), (7, 8));
32 Alias::SingleVariant(a, b) = Alias::SingleVariant(9, 10);
33 assert_eq!((a, b), (9, 10));