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//@ edition: 2018
// This is `no-borrow-from-env.rs`, but under edition 2018 we still want to make
// sure that we don't ICE or anything, even if precise closure captures means
// that we can't actually borrowck successfully.
fn outlives<'a>(_: impl Sized + 'a) {}
async fn call_once(f: impl AsyncFnOnce()) {
f().await;
}
fn simple<'a>(x: &'a i32) {
let c = async || { println!("{}", *x); }; //~ ERROR `x` does not live long enough
outlives::<'a>(c());
outlives::<'a>(call_once(c));
let c = async move || { println!("{}", *x); };
outlives::<'a>(c()); //~ ERROR `c` does not live long enough
outlives::<'a>(call_once(c));
}
struct S<'a>(&'a i32);
fn through_field<'a>(x: S<'a>) {
let c = async || { println!("{}", *x.0); }; //~ ERROR `x` does not live long enough
outlives::<'a>(c());
outlives::<'a>(call_once(c));
let c = async move || { println!("{}", *x.0); }; //~ ERROR cannot move out of `x`
outlives::<'a>(c()); //~ ERROR `c` does not live long enough
outlives::<'a>(call_once(c)); //~ ERROR cannot move out of `c`
}
fn through_field_and_ref<'a>(x: &S<'a>) {
let c = async || { println!("{}", *x.0); }; //~ ERROR `x` does not live long enough
outlives::<'a>(c());
outlives::<'a>(call_once(c)); //~ ERROR explicit lifetime required in the type of `x`
}
fn through_field_and_ref_move<'a>(x: &S<'a>) {
let c = async move || { println!("{}", *x.0); };
outlives::<'a>(c()); //~ ERROR `c` does not live long enough
outlives::<'a>(call_once(c)); //~ ERROR explicit lifetime required in the type of `x`
}
struct T;
impl T {
fn outlives<'a>(&'a self, _: impl Sized + 'a) {}
}
fn through_method<'a>(x: &'a i32) {
let c = async || { println!("{}", *x); }; //~ ERROR `x` does not live long enough
T.outlives::<'a>(c());
T.outlives::<'a>(call_once(c));
let c = async move || { println!("{}", *x); };
T.outlives::<'a>(c()); //~ ERROR `c` does not live long enough
T.outlives::<'a>(call_once(c));
}
fn main() {}
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