summaryrefslogtreecommitdiffstats
path: root/tests/ui/nll/issue-30438-a.rs
blob: 0d4eb796ad9b02417de1ffcffbf103b133947bab (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
// Original regression test for Issue #30438.

use std::ops::Index;

struct Test<'a> {
    s: &'a String
}

impl <'a> Index<usize> for Test<'a> {
    type Output = Test<'a>;
    fn index(&self, _: usize) -> &Self::Output {
        return &Test { s: &self.s};
        //~^ ERROR: cannot return reference to temporary value
    }
}

fn main() {
    let s = "Hello World".to_string();
    let test = Test{s: &s};
    let r = &test[0];
    println!("{}", test.s); // OK since test is valid
    println!("{}", r.s); // Segfault since value pointed by r has already been dropped
}