X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=library%2Falloc%2Fsrc%2Fcollections%2Fvec_deque%2Fiter_mut.rs;h=31e6e3b06af5fdd1e7e27ee88b013db480d0283d;hb=5af61cb114e4af46e5c1c6c97b4556d5f007536f;hp=7700b31cf5b469538f20e88cf652bc4223f2ac2d;hpb=77d568344f58e789000e43bafcd706f099d93de1;p=rust.git

diff --git a/library/alloc/src/collections/vec_deque/iter_mut.rs b/library/alloc/src/collections/vec_deque/iter_mut.rs
index 7700b31cf5b..31e6e3b06af 100644
--- a/library/alloc/src/collections/vec_deque/iter_mut.rs
+++ b/library/alloc/src/collections/vec_deque/iter_mut.rs
@@ -13,10 +13,21 @@
 #[stable(feature = "rust1", since = "1.0.0")]
 pub struct IterMut<'a, T: 'a> {
     // Internal safety invariant: the entire slice is dereferencable.
-    pub(crate) ring: *mut [T],
-    pub(crate) tail: usize,
-    pub(crate) head: usize,
-    pub(crate) phantom: PhantomData<&'a mut [T]>,
+    ring: *mut [T],
+    tail: usize,
+    head: usize,
+    phantom: PhantomData<&'a mut [T]>,
+}
+
+impl<'a, T> IterMut<'a, T> {
+    pub(super) unsafe fn new(
+        ring: *mut [T],
+        tail: usize,
+        head: usize,
+        phantom: PhantomData<&'a mut [T]>,
+    ) -> Self {
+        IterMut { ring, tail, head, phantom }
+    }
 }
 
 // SAFETY: we do nothing thread-local and there is no interior mutability,