X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=library%2Falloc%2Fsrc%2Fsync.rs;h=d821e71562212ed86fd7d083331da0b78f4d6909;hb=12ed22ffe44d7b06e94c2fe0003ef96a20cf4b98;hp=742a9d7ba0187707f12c066232c0d558be9183ef;hpb=6a758ea7e48416b968955535094479dc2e7cc9e1;p=rust.git

diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs
index 742a9d7ba01..d821e715622 100644
--- a/library/alloc/src/sync.rs
+++ b/library/alloc/src/sync.rs
@@ -332,6 +332,7 @@ impl<T> Arc<T> {
     ///
     /// let five = Arc::new(5);
     /// ```
+    #[cfg(not(no_global_oom_handling))]
     #[inline]
     #[stable(feature = "rust1", since = "1.0.0")]
     pub fn new(data: T) -> Arc<T> {
@@ -365,6 +366,7 @@ pub fn new(data: T) -> Arc<T> {
     ///     me: me.clone(),
     /// });
     /// ```
+    #[cfg(not(no_global_oom_handling))]
     #[inline]
     #[unstable(feature = "arc_new_cyclic", issue = "75861")]
     pub fn new_cyclic(data_fn: impl FnOnce(&Weak<T>) -> T) -> Arc<T> {
@@ -485,11 +487,19 @@ pub fn new_zeroed() -> Arc<mem::MaybeUninit<T>> {
 
     /// Constructs a new `Pin<Arc<T>>`. If `T` does not implement `Unpin`, then
     /// `data` will be pinned in memory and unable to be moved.
+    #[cfg(not(no_global_oom_handling))]
     #[stable(feature = "pin", since = "1.33.0")]
     pub fn pin(data: T) -> Pin<Arc<T>> {
         unsafe { Pin::new_unchecked(Arc::new(data)) }
     }
 
+    /// Constructs a new `Pin<Arc<T>>`, return an error if allocation fails.
+    #[unstable(feature = "allocator_api", issue = "32838")]
+    #[inline]
+    pub fn try_pin(data: T) -> Result<Pin<Arc<T>>, AllocError> {
+        unsafe { Ok(Pin::new_unchecked(Arc::try_new(data)?)) }
+    }
+
     /// Constructs a new `Arc<T>`, returning an error if allocation fails.
     ///
     /// # Examples
@@ -2274,6 +2284,7 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
     }
 }
 
+#[cfg(not(no_global_oom_handling))]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T: Default> Default for Arc<T> {
     /// Creates a new `Arc<T>`, with the `Default` value for `T`.
@@ -2298,6 +2309,7 @@ fn hash<H: Hasher>(&self, state: &mut H) {
     }
 }
 
+#[cfg(not(no_global_oom_handling))]
 #[stable(feature = "from_for_ptrs", since = "1.6.0")]
 impl<T> From<T> for Arc<T> {
     /// Converts a `T` into an `Arc<T>`