diff options
| -rw-r--r-- | library/alloc/src/sync.rs | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs index 06dec6f01f8..f064881717d 100644 --- a/library/alloc/src/sync.rs +++ b/library/alloc/src/sync.rs @@ -1509,7 +1509,16 @@ impl<T> Weak<T> { pub fn new() -> Weak<T> { Weak { ptr: NonNull::new(usize::MAX as *mut ArcInner<T>).expect("MAX is not 0") } } +} +/// Helper type to allow accessing the reference counts without +/// making any assertions about the data field. +struct WeakInner<'a> { + weak: &'a atomic::AtomicUsize, + strong: &'a atomic::AtomicUsize, +} + +impl<T: ?Sized> Weak<T> { /// Returns a raw pointer to the object `T` pointed to by this `Weak<T>`. /// /// The pointer is valid only if there are some strong references. The pointer may be dangling, @@ -1642,16 +1651,7 @@ impl<T> Weak<T> { // SAFETY: we now have recovered the original Weak pointer, so can create the Weak. unsafe { Weak { ptr: NonNull::new_unchecked(ptr) } } } -} -/// Helper type to allow accessing the reference counts without -/// making any assertions about the data field. -struct WeakInner<'a> { - weak: &'a atomic::AtomicUsize, - strong: &'a atomic::AtomicUsize, -} - -impl<T: ?Sized> Weak<T> { /// Attempts to upgrade the `Weak` pointer to an [`Arc`], delaying /// dropping of the inner value if successful. /// |