---

yaml
---
r: 194767
b: refs/heads/master
c: 842e6cf
h: refs/heads/master
i:
  194765: 8988675
  194763: 08b18b7
  194759: 10c57fd
  194751: 77f494d
v: v3

Author: sfackler

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: b82bcec7ce67a60adcc054670487fe534195f6d6
+refs/heads/master: 842e6cf63e632473b335cffeeaeb305c45d546fa
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: 552080181c58beef03493a110b4a38b20b6b5da5
 refs/heads/try: 961e0358e1a5c0faaef606e31e9965742c1643bf

trunk/src/libcore/fmt/mod.rs

@@ -692,11 +692,7 @@ impl<'a> Formatter<'a> {
     ///
     /// impl fmt::Debug for Foo {
     ///     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-    ///         let mut builder = fmt.debug_list();
-    ///         for i in &self.0 {
-    ///             builder = builder.entry(i);
-    ///         }
-    ///         builder.finish()
+    ///         self.0.iter().fold(fmt.debug_list(), |b, e| b.entry(e)).finish()
     ///     }
     /// }
     ///
@@ -722,11 +718,7 @@ impl<'a> Formatter<'a> {
     ///
     /// impl fmt::Debug for Foo {
     ///     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-    ///         let mut builder = fmt.debug_set();
-    ///         for i in &self.0 {
-    ///             builder = builder.entry(i);
-    ///         }
-    ///         builder.finish()
+    ///         self.0.iter().fold(fmt.debug_set(), |b, e| b.entry(e)).finish()
     ///     }
     /// }
     ///
@@ -752,11 +744,7 @@ impl<'a> Formatter<'a> {
     ///
     /// impl fmt::Debug for Foo {
     ///     fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
-    ///         let mut builder = fmt.debug_map();
-    ///         for &(ref key, ref value) in &self.0 {
-    ///             builder = builder.entry(key, value);
-    ///         }
-    ///         builder.finish()
+    ///         self.0.iter().fold(fmt.debug_map(), |b, (k, v)| b.entry(k, v)).finish()
     ///     }
     /// }
     ///