De-~[] Reader and Writer

There's a little more allocation here and there now since
from_utf8_owned can't be used with Vec.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libsyntax/ext/source_util.rs b/src/libsyntax/ext/source_util.rs
index 4d8d816d225..008532bcafe 100644
--- a/src/libsyntax/ext/source_util.rs
+++ b/src/libsyntax/ext/source_util.rs
@@ -113,13 +113,13 @@ pub fn expand_include_str(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
         }
         Ok(bytes) => bytes,
     };
-    match str::from_utf8_owned(bytes) {
+    match str::from_utf8(bytes.as_slice()) {
         Some(src) => {
             // Add this input file to the code map to make it available as
             // dependency information
             let filename = file.display().to_str();
             let interned = token::intern_and_get_ident(src);
-            cx.codemap().new_filemap(filename, src);
+            cx.codemap().new_filemap(filename, src.to_owned());
 
             base::MRExpr(cx.expr_str(sp, interned))
         }