src/test/ui/span/issue-23338-locals-die-before-temps-of-body.rs


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

// This is just checking that we still reject code where temp values
// are borrowing values for longer than they will be around.
//
// Compare to run-pass/issue-23338-params-outlive-temps-of-body.rs

use std::cell::RefCell;

fn foo(x: RefCell<String>) -> String {
    let y = x;
    y.borrow().clone()
}
//~^^ ERROR `y` does not live long enough

fn foo2(x: RefCell<String>) -> String {
    let ret = {
        let y = x;
        y.borrow().clone()
    };
    //~^^ ERROR `y` does not live long enough
    ret
}

fn main() {
    let r = RefCell::new(format!("data"));
    assert_eq!(foo(r), "data");
    let r = RefCell::new(format!("data"));
    assert_eq!(foo2(r), "data");
}