From 10f0296a274f5c4b904a9e6bf95b0ca7e37708cb Mon Sep 17 00:00:00 2001
From: Xingcan LAN <thynson@live.com>
Date: Sun, 13 Oct 2024 14:29:34 +0800
Subject: [PATCH] Explicitly annotate lifetime of entry methods (#1141)

The `.key()` and `.value()` should return a borrow whose
lifetime aligns with the container, instead of the entry
itself.

Co-authored-by: LAN Xingcan <lanxingcan@lixiang.com>
---
 crossbeam-skiplist/src/base.rs | 4 ++--
 crossbeam-skiplist/src/map.rs  | 4 ++--
 crossbeam-skiplist/src/set.rs  | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/crossbeam-skiplist/src/base.rs b/crossbeam-skiplist/src/base.rs
index 1dd27e20c..f3c90b1f9 100644
--- a/crossbeam-skiplist/src/base.rs
+++ b/crossbeam-skiplist/src/base.rs
@@ -1456,12 +1456,12 @@ impl<'a, K: 'a, V: 'a> RefEntry<'a, K, V> {
     }
 
     /// Returns a reference to the key.
-    pub fn key(&self) -> &K {
+    pub fn key(&self) -> &'a K {
         &self.node.key
     }
 
     /// Returns a reference to the value.
-    pub fn value(&self) -> &V {
+    pub fn value(&self) -> &'a V {
         &self.node.value
     }
 
diff --git a/crossbeam-skiplist/src/map.rs b/crossbeam-skiplist/src/map.rs
index b195a66f9..e131e79a9 100644
--- a/crossbeam-skiplist/src/map.rs
+++ b/crossbeam-skiplist/src/map.rs
@@ -572,12 +572,12 @@ impl<'a, K, V> Entry<'a, K, V> {
     }
 
     /// Returns a reference to the key.
-    pub fn key(&self) -> &K {
+    pub fn key(&self) -> &'a K {
         self.inner.key()
     }
 
     /// Returns a reference to the value.
-    pub fn value(&self) -> &V {
+    pub fn value(&self) -> &'a V {
         self.inner.value()
     }
 
diff --git a/crossbeam-skiplist/src/set.rs b/crossbeam-skiplist/src/set.rs
index 3093ae4aa..b185ff8ba 100644
--- a/crossbeam-skiplist/src/set.rs
+++ b/crossbeam-skiplist/src/set.rs
@@ -455,7 +455,7 @@ impl<'a, T> Entry<'a, T> {
     }
 
     /// Returns a reference to the value.
-    pub fn value(&self) -> &T {
+    pub fn value(&self) -> &'a T {
         self.inner.key()
     }