2 #![allow(type_alias_bounds)]
4 #![feature(box_syntax)]
5 #![feature(unsized_tuple_coercion)]
7 type Fat<T: ?Sized> = (isize, &'static str, T);
10 fn foo(x: &Fat<[isize]>) {
12 assert_eq!(x.2.len(), 3);
14 assert_eq!(x.2[1], 2);
16 assert_eq!(x.1, "some str");
19 fn foo2<T:ToBar>(x: &Fat<[T]>) {
22 assert_eq!(x.2.len(), 3);
23 assert_eq!(y[0].to_bar(), bar);
24 assert_eq!(x.2[1].to_bar(), bar);
26 assert_eq!(x.1, "some str");
29 fn foo3(x: &Fat<Fat<[isize]>>) {
32 assert_eq!(x.1, "some str");
33 assert_eq!((x.2).0, 8);
34 assert_eq!((x.2).1, "deep str");
35 assert_eq!((x.2).2.len(), 3);
37 assert_eq!((x.2).2[1], 2);
41 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
45 fn to_bar(&self) -> Bar;
49 fn to_bar(&self) -> Bar {
55 // With a vec of ints.
56 let f1 = (5, "some str", [1, 2, 3]);
60 let f3: &Fat<[isize]> = f2;
62 let f4: &Fat<[isize]> = &f1;
64 let f5: &Fat<[isize]> = &(5, "some str", [1, 2, 3]);
67 // With a vec of Bars.
69 let f1 = (5, "some str", [bar, bar, bar]);
73 let f3: &Fat<[Bar]> = f2;
75 let f4: &Fat<[Bar]> = &f1;
77 let f5: &Fat<[Bar]> = &(5, "some str", [bar, bar, bar]);
81 let f5: &mut Fat<[isize]> = &mut (5, "some str", [1, 2, 3]);
83 assert_eq!(f5.2[0], 1);
84 assert_eq!(f5.2[1], 34);
85 assert_eq!(f5.2[2], 3);
88 let f5: &Fat<[isize]> = &(5, "some str", []);
89 assert!(f5.2.is_empty());
90 let f5: &Fat<[Bar]> = &(5, "some str", []);
91 assert!(f5.2.is_empty());
94 let f1 = (5, "some str", (8, "deep str", [1, 2, 3]));
98 let f3: &Fat<Fat<[isize]>> = f2;
100 let f4: &Fat<Fat<[isize]>> = &f1;
102 let f5: &Fat<Fat<[isize]>> = &(5, "some str", (8, "deep str", [1, 2, 3]));
106 let f1 = Box::new([1, 2, 3]);
107 assert_eq!((*f1)[1], 2);
108 let f2: Box<[isize]> = f1;
109 assert_eq!((*f2)[1], 2);
112 let f1 : Box<Fat<[isize; 3]>> = box (5, "some str", [1, 2, 3]);
114 let f2 : Box<Fat<[isize]>> = f1;
117 let f3 : Box<Fat<[isize]>> =
118 Box::<Fat<[_; 3]>>::new((5, "some str", [1, 2, 3]));