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Consolidate impl Option<&mut T>

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This commit is contained in:
David Tolnay 2021-12-30 10:37:50 -08:00
parent 538fe4b28d
commit dc3291614a
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1 changed files with 5 additions and 4 deletions
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9
library/core/src/option.rs
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@ -1726,7 +1726,7 @@ impl<T> Option<&T> {
}
}
impl<T: Copy> Option<&mut T> {
impl<T> Option<&mut T> {
/// Maps an `Option<&mut T>` to an `Option<T>` by copying the contents of the
/// option.
///
@ -1742,15 +1742,16 @@ impl<T: Copy> Option<&mut T> {
#[must_use = "`self` will be dropped if the result is not used"]
#[stable(feature = "copied", since = "1.35.0")]
#[rustc_const_unstable(feature = "const_option_ext", issue = "91930")]
pub const fn copied(self) -> Option<T> {
pub const fn copied(self) -> Option<T>
where
T: Copy,
{
match self {
Some(&mut t) => Some(t),
None => None,
}
}
}
impl<T: Clone> Option<&mut T> {
/// Maps an `Option<&mut T>` to an `Option<T>` by cloning the contents of the
/// option.
///