diff options
| -rw-r--r-- | library/alloc/src/rc.rs | 21 | ||||
| -rw-r--r-- | library/alloc/src/sync.rs | 21 |
2 files changed, 42 insertions, 0 deletions
diff --git a/library/alloc/src/rc.rs b/library/alloc/src/rc.rs index bf01b2082ed..be983226781 100644 --- a/library/alloc/src/rc.rs +++ b/library/alloc/src/rc.rs @@ -2407,6 +2407,27 @@ impl<T> From<T> for Rc<T> { } #[cfg(not(no_global_oom_handling))] +#[stable(feature = "shared_from_array", since = "CURRENT_RUSTC_VERSION")] +impl<T, const N: usize> From<[T; N]> for Rc<[T]> { + /// Converts a [`[T; N]`](prim@array) into an `Rc<[T]>`. + /// + /// The conversion moves the array into a newly allocated `Rc`. + /// + /// # Example + /// + /// ``` + /// # use std::rc::Rc; + /// let original: [i32; 3] = [1, 2, 3]; + /// let shared: Rc<[i32]> = Rc::from(original); + /// assert_eq!(&[1, 2, 3], &shared[..]); + /// ``` + #[inline] + fn from(v: [T; N]) -> Rc<[T]> { + Rc::<[T; N]>::from(v) + } +} + +#[cfg(not(no_global_oom_handling))] #[stable(feature = "shared_from_slice", since = "1.21.0")] impl<T: Clone> From<&[T]> for Rc<[T]> { /// Allocate a reference-counted slice and fill it by cloning `v`'s items. diff --git a/library/alloc/src/sync.rs b/library/alloc/src/sync.rs index c2202f2fce5..26fd715c31b 100644 --- a/library/alloc/src/sync.rs +++ b/library/alloc/src/sync.rs @@ -3270,6 +3270,27 @@ impl<T> From<T> for Arc<T> { } #[cfg(not(no_global_oom_handling))] +#[stable(feature = "shared_from_array", since = "CURRENT_RUSTC_VERSION")] +impl<T, const N: usize> From<[T; N]> for Arc<[T]> { + /// Converts a [`[T; N]`](prim@array) into an `Arc<[T]>`. + /// + /// The conversion moves the array into a newly allocated `Arc`. + /// + /// # Example + /// + /// ``` + /// # use std::sync::Arc; + /// let original: [i32; 3] = [1, 2, 3]; + /// let shared: Arc<[i32]> = Arc::from(original); + /// assert_eq!(&[1, 2, 3], &shared[..]); + /// ``` + #[inline] + fn from(v: [T; N]) -> Arc<[T]> { + Arc::<[T; N]>::from(v) + } +} + +#[cfg(not(no_global_oom_handling))] #[stable(feature = "shared_from_slice", since = "1.21.0")] impl<T: Clone> From<&[T]> for Arc<[T]> { /// Allocate a reference-counted slice and fill it by cloning `v`'s items. |