mirror of
https://github.com/rust-lang/rust.git
synced 2024-10-31 22:41:50 +00:00
25 lines
631 B
Rust
25 lines
631 B
Rust
// Modified regression test for Issue #30438 that exposed an
|
|
// independent issue (see discussion on ticket).
|
|
|
|
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 {
|
|
&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
|
|
}
|