2 #![allow(type_alias_bounds)]
4 #![feature(unsized_tuple_coercion)]
6 type Fat<T: ?Sized> = (isize, &'static str, T);
9 fn foo(x: &Fat<[isize]>) {
11 assert_eq!(x.2.len(), 3);
13 assert_eq!(x.2[1], 2);
15 assert_eq!(x.1, "some str");
18 fn foo2<T:ToBar>(x: &Fat<[T]>) {
21 assert_eq!(x.2.len(), 3);
22 assert_eq!(y[0].to_bar(), bar);
23 assert_eq!(x.2[1].to_bar(), bar);
25 assert_eq!(x.1, "some str");
28 fn foo3(x: &Fat<Fat<[isize]>>) {
31 assert_eq!(x.1, "some str");
32 assert_eq!((x.2).0, 8);
33 assert_eq!((x.2).1, "deep str");
34 assert_eq!((x.2).2.len(), 3);
36 assert_eq!((x.2).2[1], 2);
40 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
44 fn to_bar(&self) -> Bar;
48 fn to_bar(&self) -> Bar {
54 // With a vec of ints.
55 let f1 = (5, "some str", [1, 2, 3]);
59 let f3: &Fat<[isize]> = f2;
61 let f4: &Fat<[isize]> = &f1;
63 let f5: &Fat<[isize]> = &(5, "some str", [1, 2, 3]);
66 // With a vec of Bars.
68 let f1 = (5, "some str", [bar, bar, bar]);
72 let f3: &Fat<[Bar]> = f2;
74 let f4: &Fat<[Bar]> = &f1;
76 let f5: &Fat<[Bar]> = &(5, "some str", [bar, bar, bar]);
80 let f5: &mut Fat<[isize]> = &mut (5, "some str", [1, 2, 3]);
82 assert_eq!(f5.2[0], 1);
83 assert_eq!(f5.2[1], 34);
84 assert_eq!(f5.2[2], 3);
87 let f5: &Fat<[isize]> = &(5, "some str", []);
88 assert!(f5.2.is_empty());
89 let f5: &Fat<[Bar]> = &(5, "some str", []);
90 assert!(f5.2.is_empty());
93 let f1 = (5, "some str", (8, "deep str", [1, 2, 3]));
97 let f3: &Fat<Fat<[isize]>> = f2;
99 let f4: &Fat<Fat<[isize]>> = &f1;
101 let f5: &Fat<Fat<[isize]>> = &(5, "some str", (8, "deep str", [1, 2, 3]));
105 let f1 = Box::new([1, 2, 3]);
106 assert_eq!((*f1)[1], 2);
107 let f2: Box<[isize]> = f1;
108 assert_eq!((*f2)[1], 2);
111 let f1 : Box<Fat<[isize; 3]>> = Box::new((5, "some str", [1, 2, 3]));
113 let f2 : Box<Fat<[isize]>> = f1;
116 let f3 : Box<Fat<[isize]>> =
117 Box::<Fat<[_; 3]>>::new((5, "some str", [1, 2, 3]));