impl From<&[T; N]> and From<&mut [T; N]> for Vec<T>

This commit is contained in:
Jake Goulding 2022-03-18 20:31:53 -04:00
parent a8adf7685a
commit 5dd702763a

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@ -2929,6 +2929,48 @@ fn from(s: &mut [T]) -> 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