about summary refs log tree commit diff
path: root/src/test/ui/binding/func-arg-ref-pattern.rs
blob: f46eeb7a020d8f9ef0464d821d3db2a2fd285de8 (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
// run-pass

// Test argument patterns where we create refs to the inside of
// boxes. Make sure that we don't free the box as we match the
// pattern.

#![feature(box_patterns)]
#![feature(box_syntax)]

fn getaddr(box ref x: Box<usize>) -> *const usize {
    let addr: *const usize = &*x;
    addr
}

fn checkval(box ref x: Box<usize>) -> usize {
    *x
}

pub fn main() {
    let obj: Box<_> = box 1;
    let objptr: *const usize = &*obj;
    let xptr = getaddr(obj);
    assert_eq!(objptr, xptr);

    let obj = box 22;
    assert_eq!(checkval(obj), 22);
}