rust/tests/ui/span/issue-23338-locals-die-before-temps-of-body.rs

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