3 struct Fat<T: ?Sized> {
9 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
12 #[derive(Copy, Clone, PartialEq, Eq)]
18 fn to_bar(&self) -> Bar;
19 fn to_val(&self) -> isize;
23 fn to_bar(&self) -> Bar {
26 fn to_val(&self) -> isize {
31 fn to_bar(&self) -> Bar {
34 fn to_val(&self) -> isize {
40 fn foo(x: &Fat<dyn ToBar>) {
42 assert_eq!(x.f2, "some str");
43 assert_eq!(x.ptr.to_bar(), Bar);
44 assert_eq!(x.ptr.to_val(), 42);
47 assert_eq!(y.to_bar(), Bar);
48 assert_eq!(y.to_val(), 42);
51 fn bar(x: &dyn ToBar) {
52 assert_eq!(x.to_bar(), Bar);
53 assert_eq!(x.to_val(), 42);
56 fn baz(x: &Fat<Fat<dyn ToBar>>) {
58 assert_eq!(x.f2, "some str");
59 assert_eq!(x.ptr.f1, 8);
60 assert_eq!(x.ptr.f2, "deep str");
61 assert_eq!(x.ptr.ptr.to_bar(), Bar);
62 assert_eq!(x.ptr.ptr.to_val(), 42);
65 assert_eq!(y.to_bar(), Bar);
66 assert_eq!(y.to_val(), 42);
71 let f1 = Fat { f1: 5, f2: "some str", ptr: Bar1 {f :42} };
75 let f3: &Fat<dyn ToBar> = f2;
77 let f4: &Fat<dyn ToBar> = &f1;
79 let f5: &Fat<dyn ToBar> = &Fat { f1: 5, f2: "some str", ptr: Bar1 {f :42} };
83 let f6: &Fat<dyn ToBar> = &Fat { f1: 5, f2: "some str", ptr: Bar };
84 assert_eq!(f6.ptr.to_bar(), Bar);
88 let f7: Box<dyn ToBar> = Box::new(Bar1 {f :42});
93 Fat { f1: 5, f2: "some str", ptr: Fat { f1: 8, f2: "deep str", ptr: Bar1 {f :42}} };
97 let f3: &Fat<Fat<dyn ToBar>> = f2;
99 let f4: &Fat<Fat<dyn ToBar>> = &f1;
101 let f5: &Fat<Fat<dyn ToBar>> =
102 &Fat { f1: 5, f2: "some str", ptr: Fat { f1: 8, f2: "deep str", ptr: Bar1 {f :42}} };