From 560944b982385623655f1e8503af5e7b4ca0a436 Mon Sep 17 00:00:00 2001
From: Clar Charr <clar@charr.xyz>
Date: Mon, 13 Feb 2017 20:37:42 -0500
Subject: Add From<Box<..>> implementations.

---
 src/libstd/sys_common/wtf8.rs | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'src/libstd/sys_common')

diff --git a/src/libstd/sys_common/wtf8.rs b/src/libstd/sys_common/wtf8.rs
index 1d61181a4ee..28cab10e8f9 100644
--- a/src/libstd/sys_common/wtf8.rs
+++ b/src/libstd/sys_common/wtf8.rs
@@ -346,6 +346,12 @@ impl Wtf8Buf {
     pub fn into_box(self) -> Box<Wtf8> {
         unsafe { mem::transmute(self.bytes.into_boxed_slice()) }
     }
+
+    /// Converts a `Box<Wtf8>` into a `Wtf8Buf`.
+    pub fn from_box(boxed: Box<Wtf8>) -> Wtf8Buf {
+        let bytes: Box<[u8]> = unsafe { mem::transmute(boxed) };
+        Wtf8Buf { bytes: bytes.into_vec() }
+    }
 }
 
 /// Create a new WTF-8 string from an iterator of code points.
-- 
cgit 1.4.1-3-g733a5