1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 #![allow(unknown_features)]
12 #![feature(box_syntax)]
14 struct Fat<T: ?Sized> {
21 fn foo(x: &Fat<[int]>) {
23 assert!(x.ptr.len() == 3);
25 assert!(x.ptr[1] == 2);
27 assert!(x.f2 == "some str");
30 fn foo2<T:ToBar>(x: &Fat<[T]>) {
33 assert!(x.ptr.len() == 3);
34 assert!(y[0].to_bar() == bar);
35 assert!(x.ptr[1].to_bar() == bar);
37 assert!(x.f2 == "some str");
40 fn foo3(x: &Fat<Fat<[int]>>) {
43 assert!(x.f2 == "some str");
44 assert!(x.ptr.f1 == 8);
45 assert!(x.ptr.f2 == "deep str");
46 assert!(x.ptr.ptr.len() == 3);
48 assert!(x.ptr.ptr[1] == 2);
52 #[derive(Copy, PartialEq, Eq)]
56 fn to_bar(&self) -> Bar;
60 fn to_bar(&self) -> Bar {
66 // With a vec of ints.
67 let f1 = Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] };
71 let f3: &Fat<[int]> = f2;
73 let f4: &Fat<[int]> = &f1;
75 let f5: &Fat<[int]> = &Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] };
78 // With a vec of Bars.
80 let f1 = Fat { f1: 5, f2: "some str", ptr: [bar, bar, bar] };
84 let f3: &Fat<[Bar]> = f2;
86 let f4: &Fat<[Bar]> = &f1;
88 let f5: &Fat<[Bar]> = &Fat { f1: 5, f2: "some str", ptr: [bar, bar, bar] };
92 let f5: &mut Fat<[int]> = &mut Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] };
94 assert!(f5.ptr[0] == 1);
95 assert!(f5.ptr[1] == 34);
96 assert!(f5.ptr[2] == 3);
99 let f5: &Fat<[int]> = &Fat { f1: 5, f2: "some str", ptr: [] };
100 assert!(f5.ptr.len() == 0);
101 let f5: &Fat<[Bar]> = &Fat { f1: 5, f2: "some str", ptr: [] };
102 assert!(f5.ptr.len() == 0);
105 let f1 = Fat { f1: 5, f2: "some str", ptr: Fat { f1: 8, f2: "deep str", ptr: [1, 2, 3]} };
109 let f3: &Fat<Fat<[int]>> = f2;
111 let f4: &Fat<Fat<[int]>> = &f1;
113 let f5: &Fat<Fat<[int]>> =
114 &Fat { f1: 5, f2: "some str", ptr: Fat { f1: 8, f2: "deep str", ptr: [1, 2, 3]} };
118 let f1 = box [1i, 2, 3];
119 assert!((*f1)[1] == 2);
120 let f2: Box<[int]> = f1;
121 assert!((*f2)[1] == 2);
124 let f1 : Box<Fat<[int; 3]>> = box Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] };
126 let f2 : Box<Fat<[int]>> = f1;
128 let f3 : Box<Fat<[int]>> = box Fat { f1: 5, f2: "some str", ptr: [1, 2, 3] };