summaryrefslogtreecommitdiffstats
path: root/tests/ui/borrowck/borrowck-uniq-via-ref.rs
blob: bdf7cc57a539e5b6edb46d6f91cc659c1b2ec232 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
// run-pass
#![allow(dead_code)]

// pretty-expanded FIXME #23616

struct Rec {
    f: Box<isize>,
}

struct Outer {
    f: Inner
}

struct Inner {
    g: Innermost
}

struct Innermost {
    h: Box<isize>,
}

fn borrow(_v: &isize) {}

fn box_mut(v: &mut Box<isize>) {
    borrow(&**v); // OK: &mut -> &imm
}

fn box_mut_rec(v: &mut Rec) {
    borrow(&*v.f); // OK: &mut -> &imm
}

fn box_mut_recs(v: &mut Outer) {
    borrow(&*v.f.g.h); // OK: &mut -> &imm
}

fn box_imm(v: &Box<isize>) {
    borrow(&**v); // OK
}

fn box_imm_rec(v: &Rec) {
    borrow(&*v.f); // OK
}

fn box_imm_recs(v: &Outer) {
    borrow(&*v.f.g.h); // OK
}

pub fn main() {
}