rust/tests/ui/borrowck/alias-liveness/rtn-static.rs

24 lines
507 B
Rust

//@ check-pass
#![feature(return_type_notation)]
//~^ WARN the feature `return_type_notation` is incomplete
trait Foo {
fn borrow(&mut self) -> impl Sized + '_;
}
fn live_past_borrow<T: Foo<borrow(): 'static>>(mut t: T) {
let x = t.borrow();
drop(t);
drop(x);
}
// Test that the `'_` item bound in `borrow` does not cause us to
// overlook the `'static` RTN bound.
fn overlapping_mut<T: Foo<borrow(): 'static>>(mut t: T) {
let x = t.borrow();
let x = t.borrow();
}
fn main() {}