From 2c27ddaf7e860424071583bcf5913bcdf43e9637 Mon Sep 17 00:00:00 2001
From: Anthony Ramine <n.oxyde@gmail.com>
Date: Mon, 12 Mar 2018 17:51:10 +0100
Subject: [PATCH] Introduce Bytes::to_mut (#188)

---
 src/bytes.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/bytes.rs b/src/bytes.rs
index 50eaac6..60cf5d4 100644
--- a/src/bytes.rs
+++ b/src/bytes.rs
@@ -763,6 +763,17 @@ impl Bytes {
         }
     }
 
+    /// Acquires a mutable reference to the owned form of the data.
+    ///
+    /// Clones the data if it is not already owned.
+    pub fn to_mut(&mut self) -> &mut BytesMut {
+        if !self.inner.is_mut_safe() {
+            let new = Bytes::from(&self[..]);
+            *self = new;
+        }
+        unsafe { &mut *(self as *mut Bytes as *mut BytesMut) }
+    }
+
     /// Appends given bytes to this object.
     ///
     /// If this `Bytes` object has not enough capacity, it is resized first.