1 files changed, 78 insertions, 0 deletions

diff --git a/vendor/hashbrown/src/map.rs b/vendor/hashbrown/src/map.rs
index b5e657bc6..9cd768f20 100644
--- a/vendor/hashbrown/src/map.rs
+++ b/vendor/hashbrown/src/map.rs
@@ -2469,6 +2469,14 @@ impl<K, V, A: Allocator> Iterator for IntoKeys<K, V, A> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[inline]
+    fn fold<B, F>(self, init: B, mut f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, |acc, (k, _)| f(acc, k))
+    }
 }
 
 impl<K, V, A: Allocator> ExactSizeIterator for IntoKeys<K, V, A> {
@@ -2531,6 +2539,14 @@ impl<K, V, A: Allocator> Iterator for IntoValues<K, V, A> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[inline]
+    fn fold<B, F>(self, init: B, mut f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, |acc, (_, v)| f(acc, v))
+    }
 }
 
 impl<K, V, A: Allocator> ExactSizeIterator for IntoValues<K, V, A> {
@@ -4722,6 +4738,17 @@ impl<'a, K, V> Iterator for Iter<'a, K, V> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[cfg_attr(feature = "inline-more", inline)]
+    fn fold<B, F>(self, init: B, mut f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, |acc, x| unsafe {
+            let (k, v) = x.as_ref();
+            f(acc, (k, v))
+        })
+    }
 }
 impl<K, V> ExactSizeIterator for Iter<'_, K, V> {
     #[cfg_attr(feature = "inline-more", inline)]
@@ -4750,6 +4777,17 @@ impl<'a, K, V> Iterator for IterMut<'a, K, V> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[cfg_attr(feature = "inline-more", inline)]
+    fn fold<B, F>(self, init: B, mut f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, |acc, x| unsafe {
+            let (k, v) = x.as_mut();
+            f(acc, (k, v))
+        })
+    }
 }
 impl<K, V> ExactSizeIterator for IterMut<'_, K, V> {
     #[cfg_attr(feature = "inline-more", inline)]
@@ -4780,6 +4818,14 @@ impl<K, V, A: Allocator> Iterator for IntoIter<K, V, A> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[cfg_attr(feature = "inline-more", inline)]
+    fn fold<B, F>(self, init: B, f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, f)
+    }
 }
 impl<K, V, A: Allocator> ExactSizeIterator for IntoIter<K, V, A> {
     #[cfg_attr(feature = "inline-more", inline)]
@@ -4810,6 +4856,14 @@ impl<'a, K, V> Iterator for Keys<'a, K, V> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[cfg_attr(feature = "inline-more", inline)]
+    fn fold<B, F>(self, init: B, mut f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, |acc, (k, _)| f(acc, k))
+    }
 }
 impl<K, V> ExactSizeIterator for Keys<'_, K, V> {
     #[cfg_attr(feature = "inline-more", inline)]
@@ -4834,6 +4888,14 @@ impl<'a, K, V> Iterator for Values<'a, K, V> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[cfg_attr(feature = "inline-more", inline)]
+    fn fold<B, F>(self, init: B, mut f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, |acc, (_, v)| f(acc, v))
+    }
 }
 impl<K, V> ExactSizeIterator for Values<'_, K, V> {
     #[cfg_attr(feature = "inline-more", inline)]
@@ -4858,6 +4920,14 @@ impl<'a, K, V> Iterator for ValuesMut<'a, K, V> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[cfg_attr(feature = "inline-more", inline)]
+    fn fold<B, F>(self, init: B, mut f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, |acc, (_, v)| f(acc, v))
+    }
 }
 impl<K, V> ExactSizeIterator for ValuesMut<'_, K, V> {
     #[cfg_attr(feature = "inline-more", inline)]
@@ -4886,6 +4956,14 @@ impl<'a, K, V, A: Allocator> Iterator for Drain<'a, K, V, A> {
     fn size_hint(&self) -> (usize, Option<usize>) {
         self.inner.size_hint()
     }
+    #[cfg_attr(feature = "inline-more", inline)]
+    fn fold<B, F>(self, init: B, f: F) -> B
+    where
+        Self: Sized,
+        F: FnMut(B, Self::Item) -> B,
+    {
+        self.inner.fold(init, f)
+    }
 }
 impl<K, V, A: Allocator> ExactSizeIterator for Drain<'_, K, V, A> {
     #[cfg_attr(feature = "inline-more", inline)]