Struct OccupiedError 

#[non_exhaustive]
pub struct OccupiedError<'a, K: 'a, V: 'a, A: Allocator + Clone = Global> {
    pub entry: OccupiedEntry<'a, K, V, A>,
    pub key: K,
    pub value: V,
}

🔬This is a nightly-only experimental API. (map_try_insert #82766)

The error returned by try_insert when the key already exists.

Contains the occupied entry, key, and the value that was not inserted.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

entry: OccupiedEntry<'a, K, V, A>

🔬This is a nightly-only experimental API. (map_try_insert #82766)

The entry in the map that was already occupied.

key: K

🔬This is a nightly-only experimental API. (map_try_insert #82766)

The key which was not inserted, because the entry was already occupied.

value: V

🔬This is a nightly-only experimental API. (map_try_insert #82766)

The value which was not inserted, because the entry was already occupied.

Trait Implementations

impl<K: Debug + Ord, V: Debug, A: Allocator + Clone> Debug for OccupiedError<'_, K, V, A>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.