From efecd7d02f36b7298422951649d73cba09c86515 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jakob=20Pov=C5=A1i=C4=8D?= <jakob@margin.services>
Date: Mon, 27 Feb 2023 21:44:30 -0700
Subject: [PATCH] feat: impl BufMut for RefMut

---
 src/buf/buf_mut.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/buf/buf_mut.rs b/src/buf/buf_mut.rs
index 2a3c24325..04e614bb0 100644
--- a/src/buf/buf_mut.rs
+++ b/src/buf/buf_mut.rs
@@ -2,7 +2,7 @@ use crate::buf::{limit, Chain, Limit, UninitSlice};
 #[cfg(feature = "std")]
 use crate::buf::{writer, Writer};
 
-use core::{cmp, mem, ptr, usize};
+use core::{cell::RefMut, cmp, mem, ptr, usize};
 
 use alloc::{boxed::Box, vec::Vec};
 
@@ -1383,6 +1383,10 @@ unsafe impl<T: BufMut + ?Sized> BufMut for Box<T> {
     deref_forward_bufmut!();
 }
 
+unsafe impl<T: BufMut + ?Sized> BufMut for RefMut<'_, T> {
+    deref_forward_bufmut!();
+}
+
 unsafe impl BufMut for &mut [u8] {
     #[inline]
     fn remaining_mut(&self) -> usize {