diff options
| -rw-r--r-- | library/alloc/src/vec/mod.rs | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs index 0bfd82101a7..1ca5ee55375 100644 --- a/library/alloc/src/vec/mod.rs +++ b/library/alloc/src/vec/mod.rs @@ -2933,6 +2933,48 @@ impl<T, const N: usize> From<[T; N]> for Vec<T> { } } +#[cfg(not(no_global_oom_handling))] +#[stable(feature = "vec_from_array_ref", since = "1.61.0")] +impl<T: Clone, const N: usize> From<&[T; N]> for Vec<T> { + /// Allocate a `Vec<T>` and fill it by cloning `s`'s items. + /// + /// # Examples + /// + /// ``` + /// assert_eq!(Vec::from(b"raw"), vec![b'r', b'a', b'w']); + /// ``` + #[cfg(not(test))] + fn from(s: &[T; N]) -> Vec<T> { + s.to_vec() + } + + #[cfg(test)] + fn from(s: &[T; N]) -> Vec<T> { + crate::slice::to_vec(s, Global) + } +} + +#[cfg(not(no_global_oom_handling))] +#[stable(feature = "vec_from_array_ref", since = "1.61.0")] +impl<T: Clone, const N: usize> From<&mut [T; N]> for Vec<T> { + /// Allocate a `Vec<T>` and fill it by cloning `s`'s items. + /// + /// # Examples + /// + /// ``` + /// assert_eq!(Vec::from(&mut [1, 2, 3]), vec![1, 2, 3]); + /// ``` + #[cfg(not(test))] + fn from(s: &mut [T; N]) -> Vec<T> { + s.to_vec() + } + + #[cfg(test)] + fn from(s: &mut [T; N]) -> Vec<T> { + crate::slice::to_vec(s, Global) + } +} + #[stable(feature = "vec_from_cow_slice", since = "1.14.0")] impl<'a, T> From<Cow<'a, [T]>> for Vec<T> where |