---

yaml
---
r: 180214
b: refs/heads/master
c: bea8b81
h: refs/heads/master
v: v3

Author: nikomatsakis

[refs]

@@ -1,5 +1,5 @@
 ---
-refs/heads/master: acd1a0090a55bcb6810b2d6eb1676cb9a5fb65b7
+refs/heads/master: bea8b81225372ebbcb42fc5a2b6f468b2df402ba
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: e29f42025513374f1a88404491d1b40386acf994
 refs/heads/try: ccf8fedf1cffcb8f6f3581d53d220039e192fe77

trunk/src/librustc/middle/subst.rs

@@ -18,6 +18,7 @@ use middle::ty_fold::{self, TypeFoldable, TypeFolder};
 use util::ppaux::Repr;
 
 use std::fmt;
+use std::iter::IntoIterator;
 use std::slice::Iter;
 use std::vec::{Vec, IntoIter};
 use syntax::codemap::{Span, DUMMY_SP};
@@ -529,6 +530,23 @@ impl<'a,T> Iterator for EnumeratedItems<'a,T> {
     }
 }
 
+impl<T> IntoIterator for VecPerParamSpace<T> {
+    type IntoIter = IntoIter<T>;
+
+    fn into_iter(self) -> IntoIter<T> {
+        self.into_vec().into_iter()
+    }
+}
+
+impl<'a,T> IntoIterator for &'a VecPerParamSpace<T> {
+    type IntoIter = Iter<'a, T>;
+
+    fn into_iter(self) -> Iter<'a, T> {
+        self.as_slice().into_iter()
+    }
+}
+
+
 ///////////////////////////////////////////////////////////////////////////
 // Public trait `Subst`
 //