rust/tests/ui/nll/coroutine-distinct-lifetime.rs
2024-02-16 20:02:50 +00:00

26 lines
528 B
Rust

#![feature(coroutines)]
// Test for issue #47189. Here, both `s` and `t` are live for the
// coroutine's lifetime, but within the coroutine they have distinct
// lifetimes. We accept this code -- even though the borrow extends
// over a yield -- because the data that is borrowed (`*x`) is not
// stored on the stack.
//@ check-pass
fn foo(x: &mut u32) {
move || {
let s = &mut *x;
yield;
*s += 1;
let t = &mut *x;
yield;
*t += 1;
};
}
fn main() {
foo(&mut 0);
}