[rustc.git] / src / test / ui / drop / issue-35546.rs

// build-pass
#![allow(dead_code)]
// Regression test for #35546. Check that we are able to codegen
// this. Before we had problems because of the drop glue signature
// around dropping a trait object (specifically, when dropping the
// `value` field of `Node<Send>`).

struct Node<T: ?Sized + Send> {
    next: Option<Box<Node<dyn Send>>>,
    value: T,
}

fn clear(head: &mut Option<Box<Node<dyn Send>>>) {
    match head.take() {
        Some(node) => *head = node.next,
        None => (),
    }
}

fn main() {}
Commit	Line	Data
60c5eb7d	1	// build-pass
0bf4aa26	2	#![allow(dead_code)]
5bcae85e SL	3	// Regression test for #35546. Check that we are able to codegen
	4	// this. Before we had problems because of the drop glue signature
	5	// around dropping a trait object (specifically, when dropping the
	6	// `value` field of `Node<Send>`).
3157f602	7
5bcae85e	8	struct Node<T: ?Sized + Send> {
dc9dc135	9	next: Option<Box<Node<dyn Send>>>,
5bcae85e	10	value: T,
a7813a04 XL	11	}
a7813a04 XL	12
dc9dc135	13	fn clear(head: &mut Option<Box<Node<dyn Send>>>) {
5bcae85e SL	14	match head.take() {
	15	Some(node) => *head = node.next,
	16	None => (),
	17	}
54a0048b	18	}
5bcae85e SL	19
5bcae85e SL	20	fn main() {}