From da03c9df33177d77029c52f8a68a5d214a6e83c7 Mon Sep 17 00:00:00 2001
From: Ulrik Sverdrup <root@localhost>
Date: Fri, 1 May 2015 17:08:39 +0200
Subject: syntax: Avoid reallocating or copying in CodeMap::new_filemap

Avoid creating a new String when there is no BOM to strip, and
otherwises use .drain(..3) to strip the BOM using the same allocation.
---
 src/libsyntax/lib.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libsyntax/lib.rs')

diff --git a/src/libsyntax/lib.rs b/src/libsyntax/lib.rs
index 275400009f5..330fe86deeb 100644
--- a/src/libsyntax/lib.rs
+++ b/src/libsyntax/lib.rs
@@ -27,6 +27,7 @@
 
 #![feature(associated_consts)]
 #![feature(collections)]
+#![feature(collections_drain)]
 #![feature(core)]
 #![feature(libc)]
 #![feature(rustc_private)]
-- 
cgit 1.4.1-3-g733a5