From 6f1b56c499a0b4a5930067814cee5538eaab700a Mon Sep 17 00:00:00 2001
From: Jeremy Smart <jeremy3141592@gmail.com>
Date: Mon, 21 Jul 2025 21:44:48 -0400
Subject: [PATCH] add Rev::into_inner

---
 library/core/src/iter/adapters/rev.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/library/core/src/iter/adapters/rev.rs b/library/core/src/iter/adapters/rev.rs
index 06ab15d5e900d..17d3eef597dcb 100644
--- a/library/core/src/iter/adapters/rev.rs
+++ b/library/core/src/iter/adapters/rev.rs
@@ -20,6 +20,25 @@ impl<T> Rev<T> {
     pub(in crate::iter) fn new(iter: T) -> Rev<T> {
         Rev { iter }
     }
+
+    /// Consumes the `Rev`, returning the inner iterator.
+    ///
+    /// # Examples
+    ///
+    /// ```rust
+    /// #![feature(rev_into_inner)]
+    ///
+    /// let s = "foobar";
+    /// let mut rev = s.chars().rev();
+    /// assert_eq!(rev.next(), Some('r'));
+    /// assert_eq!(rev.next(), Some('a'));
+    /// assert_eq!(rev.next(), Some('b'));
+    /// assert_eq!(rev.into_inner().collect::<String>(), "foo");
+    /// ```
+    #[unstable(feature = "rev_into_inner", issue = "144277")]
+    pub fn into_inner(self) -> T {
+        self.iter
+    }
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]