From 82c09b75d7fef78db2d485793cfa8bf5583ff7cf Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonasschievink@gmail.com>
Date: Thu, 12 Dec 2019 00:39:29 +0100
Subject: [PATCH] Add comment to `Dropper`

---
 src/liballoc/collections/vec_deque.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/liballoc/collections/vec_deque.rs b/src/liballoc/collections/vec_deque.rs
index 6e644dced16..5ec69f73740 100644
--- a/src/liballoc/collections/vec_deque.rs
+++ b/src/liballoc/collections/vec_deque.rs
@@ -144,6 +144,8 @@ fn clone_from(&mut self, other: &Self) {
 #[stable(feature = "rust1", since = "1.0.0")]
 unsafe impl<#[may_dangle] T> Drop for VecDeque<T> {
     fn drop(&mut self) {
+        /// Runs the destructor for all items in the slice when it gets dropped (normally or
+        /// during unwinding).
         struct Dropper<'a, T>(&'a mut [T]);
 
         impl<'a, T> Drop for Dropper<'a, T> {
-- 
2.44.0