From b7ccb248480918ae589756b585f4cdcae82a26b7 Mon Sep 17 00:00:00 2001
From: Taylor Cramer <cramertj@google.com>
Date: Tue, 22 May 2018 16:59:53 -0700
Subject: [PATCH] Add PinMut::set

---
 src/libcore/mem.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/libcore/mem.rs b/src/libcore/mem.rs
index 116e56f4ae9f..059c099d66b5 100644
--- a/src/libcore/mem.rs
+++ b/src/libcore/mem.rs
@@ -1164,6 +1164,14 @@ impl<'a, T: ?Sized> PinMut<'a, T> {
     {
         PinMut { inner: f(this.inner) }
     }
+
+    /// Assign a new value to the memory behind the pinned reference.
+    #[unstable(feature = "pin", issue = "49150")]
+    pub fn set(this: PinMut<'a, T>, value: T)
+        where T: Sized,
+    {
+        *this.inner = value;
+    }
 }
 
 #[unstable(feature = "pin", issue = "49150")]