From 52d13687e1de81973a074ea7e77fc305dd443fb3 Mon Sep 17 00:00:00 2001
From: Nanami <312767031+nanami-0713@users.noreply.github.com>
Date: Sun, 25 Oct 2026 00:18:10 +0800
Subject: [PATCH] docs(pool): document extend's non-reentrancy requirement

---
 asyncband/src/pool/unbounded.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/asyncband/src/pool/unbounded.rs b/asyncband/src/pool/unbounded.rs
index e4478433..793e7860 100644
--- a/asyncband/src/pool/unbounded.rs
+++ b/asyncband/src/pool/unbounded.rs
@@ -389,6 +389,8 @@ impl<T, M: ManageObject<Object = T>> Pool<T, M> {
 
     /// Extends the pool with the objects of an iterator.
     ///
+    /// The iterator is consumed while the pool is locked and must not call back into it.
+    ///
     /// # Examples
     ///
     /// ```