---

yaml
---
r: 52134
b: refs/heads/dist-snap
c: 9e5a416
h: refs/heads/master
v: v3

Author: apasel422

[refs]

@@ -7,7 +7,7 @@ refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: 147ecfdd8221e4a4d4e090486829a06da1e0ca3c
 refs/heads/incoming: 44d4d6de762f3f9aae1fedcf454c66b79b3ad58d
-refs/heads/dist-snap: af298deff7141c3b8b95acb94ef2145d2ef9adc0
+refs/heads/dist-snap: 9e5a4166d5bf0ebad622535a6619e12014fc6470
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596
 refs/tags/release-0.3: b5f0d0f648d9a6153664837026ba1be43d3e2503
 refs/heads/try3: 9387340aab40a73e8424c48fd42f0c521a4875c0

branches/dist-snap/src/libcore/extfmt.rs

@@ -214,17 +214,19 @@ pub mod ct {
                             err: ErrorFn) ->
        Parsed<Piece> {
         let parm = parse_parameter(s, i, lim);
-        let flags = parse_flags(s, parm.next, lim);
-        let width = parse_count(s, flags.next, lim);
+        // avoid copying ~[Flag] by destructuring
+        let Parsed {val: flags_val, next: flags_next} = parse_flags(s,
+            parm.next, lim);
+        let width = parse_count(s, flags_next, lim);
         let prec = parse_precision(s, width.next, lim);
         let ty = parse_type(s, prec.next, lim, err);
-        return Parsed::new(
+        Parsed::new(
                  PieceConv(Conv {param: parm.val,
-                             flags: copy flags.val,
+                             flags: flags_val,
                              width: width.val,
                              precision: prec.val,
                              ty: ty.val}),
-             ty.next);
+             ty.next)
     }
     pub fn parse_parameter(s: &str, i: uint, lim: uint) ->
        Parsed<Option<uint>> {