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//@ reference: destructors.scope.lifetime-extension.exprs
fn temp() -> String {
String::from("Hello")
}
#[derive(Debug)]
struct X<'a>(&'a String);
trait T<'a> {
const A: X<'a>;
const B: X<'a>;
}
impl<'a> T<'a> for X<'a> {
// Check both Self() and X() syntax:
const A: X<'a> = Self(&String::new());
const B: X<'a> = X(&String::new());
}
fn main() {
let a = &temp();
let b = Some(&temp());
let c = Option::Some::<&String>(&temp());
use std::option::Option::Some as S;
let d = S(&temp());
let e = X(&temp());
let f = Some(Ok::<_, ()>(std::borrow::Cow::Borrowed(if true {
&temp()
} else {
panic!()
})));
let some = Some; // Turn the ctor into a regular function.
let g = some(&temp()); //~ERROR temporary value dropped while borrowed
println!("{a:?} {b:?} {c:?} {d:?} {e:?} {f:?} {g:?}");
}
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