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Stabilize or_insert_with_key

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This commit is contained in:
Chai T. Rex 2020-10-18 15:45:09 -04:00
parent 98e16884b1
commit c2de8fe294
3 changed files with 3 additions and 5 deletions
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3
library/alloc/src/collections/btree/map/entry.rs
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@ -116,7 +116,6 @@ impl<'a, K: Ord, V> Entry<'a, K, V> {
}
}
#[unstable(feature = "or_insert_with_key", issue = "71024")]
/// Ensures a value is in the entry by inserting, if empty, the result of the default function,
/// which takes the key as its argument, and returns a mutable reference to the value in the
/// entry.
@ -124,7 +123,6 @@ impl<'a, K: Ord, V> Entry<'a, K, V> {
/// # Examples
///
/// ```
/// #![feature(or_insert_with_key)]
/// use std::collections::BTreeMap;
///
/// let mut map: BTreeMap<&str, usize> = BTreeMap::new();
@ -134,6 +132,7 @@ impl<'a, K: Ord, V> Entry<'a, K, V> {
/// assert_eq!(map["poneyland"], 9);
/// ```
#[inline]
#[stable(feature = "or_insert_with_key", since = "1.49.0")]
pub fn or_insert_with_key<F: FnOnce(&K) -> V>(self, default: F) -> &'a mut V {
match self {
Occupied(entry) => entry.into_mut(),