From 17bcb443cbeab81e513e5b7524a430e11d5f5a69 Mon Sep 17 00:00:00 2001
From: Manish Goregaokar <manishsmail@gmail.com>
Date: Fri, 25 Aug 2017 16:02:11 -0700
Subject: [PATCH] Kill fused

---
 src/hash/map.rs | 10 +---------
 src/hash/set.rs | 29 +----------------------------
 src/lib.rs      |  2 +-
 3 files changed, 3 insertions(+), 38 deletions(-)

diff --git a/src/hash/map.rs b/src/hash/map.rs
index e06b4d9d239..f2a03a21a90 100644
--- a/src/hash/map.rs
+++ b/src/hash/map.rs
@@ -16,7 +16,7 @@ use cmp::max;
 use fmt::{self, Debug};
 #[allow(deprecated)]
 use hash::{Hash, BuildHasher};
-use iter::{FromIterator, FusedIterator};
+use iter::FromIterator;
 use mem::{self, replace};
 use ops::{Deref, Index};
 
@@ -1613,7 +1613,6 @@ impl<'a, K, V> ExactSizeIterator for Iter<'a, K, V> {
     }
 }
 
-impl<'a, K, V> FusedIterator for Iter<'a, K, V> {}
 
 impl<'a, K, V> Iterator for IterMut<'a, K, V> {
     type Item = (&'a K, &'a mut V);
@@ -1633,7 +1632,6 @@ impl<'a, K, V> ExactSizeIterator for IterMut<'a, K, V> {
         self.inner.len()
     }
 }
-impl<'a, K, V> FusedIterator for IterMut<'a, K, V> {}
 
 impl<'a, K, V> fmt::Debug for IterMut<'a, K, V>
     where K: fmt::Debug,
@@ -1664,7 +1662,6 @@ impl<K, V> ExactSizeIterator for IntoIter<K, V> {
         self.inner.len()
     }
 }
-impl<K, V> FusedIterator for IntoIter<K, V> {}
 
 impl<K: Debug, V: Debug> fmt::Debug for IntoIter<K, V> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
@@ -1692,7 +1689,6 @@ impl<'a, K, V> ExactSizeIterator for Keys<'a, K, V> {
         self.inner.len()
     }
 }
-impl<'a, K, V> FusedIterator for Keys<'a, K, V> {}
 
 impl<'a, K, V> Iterator for Values<'a, K, V> {
     type Item = &'a V;
@@ -1712,8 +1708,6 @@ impl<'a, K, V> ExactSizeIterator for Values<'a, K, V> {
         self.inner.len()
     }
 }
-impl<'a, K, V> FusedIterator for Values<'a, K, V> {}
-
 impl<'a, K, V> Iterator for ValuesMut<'a, K, V> {
     type Item = &'a mut V;
 
@@ -1732,7 +1726,6 @@ impl<'a, K, V> ExactSizeIterator for ValuesMut<'a, K, V> {
         self.inner.len()
     }
 }
-impl<'a, K, V> FusedIterator for ValuesMut<'a, K, V> {}
 
 impl<'a, K, V> fmt::Debug for ValuesMut<'a, K, V>
     where K: fmt::Debug,
@@ -1763,7 +1756,6 @@ impl<'a, K, V> ExactSizeIterator for Drain<'a, K, V> {
         self.inner.len()
     }
 }
-impl<'a, K, V> FusedIterator for Drain<'a, K, V> {}
 
 impl<'a, K, V> fmt::Debug for Drain<'a, K, V>
     where K: fmt::Debug,
diff --git a/src/hash/set.rs b/src/hash/set.rs
index 87894d0b711..f96389bcfdc 100644
--- a/src/hash/set.rs
+++ b/src/hash/set.rs
@@ -11,7 +11,7 @@
 use borrow::Borrow;
 use fmt;
 use hash::{Hash, BuildHasher};
-use iter::{Chain, FromIterator, FusedIterator};
+use iter::{Chain, FromIterator};
 use ops::{BitOr, BitAnd, BitXor, Sub};
 
 use super::Recover;
@@ -1010,7 +1010,6 @@ impl<'a, K> ExactSizeIterator for Iter<'a, K> {
         self.iter.len()
     }
 }
-impl<'a, K> FusedIterator for Iter<'a, K> {}
 
 impl<'a, K: fmt::Debug> fmt::Debug for Iter<'a, K> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
@@ -1033,7 +1032,6 @@ impl<K> ExactSizeIterator for IntoIter<K> {
         self.iter.len()
     }
 }
-impl<K> FusedIterator for IntoIter<K> {}
 
 impl<K: fmt::Debug> fmt::Debug for IntoIter<K> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
@@ -1060,7 +1058,6 @@ impl<'a, K> ExactSizeIterator for Drain<'a, K> {
         self.iter.len()
     }
 }
-impl<'a, K> FusedIterator for Drain<'a, K> {}
 
 impl<'a, K: fmt::Debug> fmt::Debug for Drain<'a, K> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
@@ -1112,12 +1109,6 @@ impl<'a, T, S> fmt::Debug for Intersection<'a, T, S>
     }
 }
 
-impl<'a, T, S> FusedIterator for Intersection<'a, T, S>
-    where T: Eq + Hash,
-          S: BuildHasher
-{
-}
-
 impl<'a, T, S> Clone for Difference<'a, T, S> {
     fn clone(&self) -> Difference<'a, T, S> {
         Difference { iter: self.iter.clone(), ..*self }
@@ -1149,12 +1140,6 @@ impl<'a, T, S> Iterator for Difference<'a, T, S>
     }
 }
 
-impl<'a, T, S> FusedIterator for Difference<'a, T, S>
-    where T: Eq + Hash,
-          S: BuildHasher
-{
-}
-
 impl<'a, T, S> fmt::Debug for Difference<'a, T, S>
     where T: fmt::Debug + Eq + Hash,
           S: BuildHasher
@@ -1184,12 +1169,6 @@ impl<'a, T, S> Iterator for SymmetricDifference<'a, T, S>
     }
 }
 
-impl<'a, T, S> FusedIterator for SymmetricDifference<'a, T, S>
-    where T: Eq + Hash,
-          S: BuildHasher
-{
-}
-
 impl<'a, T, S> fmt::Debug for SymmetricDifference<'a, T, S>
     where T: fmt::Debug + Eq + Hash,
           S: BuildHasher
@@ -1205,12 +1184,6 @@ impl<'a, T, S> Clone for Union<'a, T, S> {
     }
 }
 
-impl<'a, T, S> FusedIterator for Union<'a, T, S>
-    where T: Eq + Hash,
-          S: BuildHasher
-{
-}
-
 impl<'a, T, S> fmt::Debug for Union<'a, T, S>
     where T: fmt::Debug + Eq + Hash,
           S: BuildHasher
diff --git a/src/lib.rs b/src/lib.rs
index 07f152079ac..0a28542c224 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,5 @@
 #![feature(allocator_api)]
-#![feature(alloc, shared, unique, fused)]
+#![feature(alloc, shared, unique)]
 
 extern crate alloc;