Take string slices

diff --git a/src/libsyntax/print/pprust.rs b/src/libsyntax/print/pprust.rs
index a535e5d195f2a75fc69c8249e26ba5e4b1708c25..3904d137faadfe5c637f58ae604fc602d59cf405 100644 (file)
--- a/src/libsyntax/print/pprust.rs
+++ b/src/libsyntax/print/pprust.rs
@@ -656,10 +656,10 @@ pub fn visibility_to_str(vis: ast::visibility) -> ~str {
     }
 }
 
-pub fn visibility_qualified(vis: ast::visibility, s: ~str) -> ~str {
+pub fn visibility_qualified(vis: ast::visibility, s: &str) -> ~str {
     match vis {
         ast::private | ast::public => visibility_to_str(vis) + " " + s,
-        ast::inherited => copy s
+        ast::inherited => s.to_owned()
     }
 }