pub enum Entry<'a> {
    Occupied(OccupiedEntry<'a>),
    Vacant(VacantEntry<'a>),
}
Expand description

Entry for an existing key-value pair or a vacant location to insert one.

Variants

Occupied(OccupiedEntry<'a>)

Existing slot with equivalent key.

Vacant(VacantEntry<'a>)

Vacant slot (no equivalent key in the map).

Implementations

Returns a reference to this entry’s key.

Ensures a value is in the entry by inserting the default if empty, and returns a mutable reference to the value in the entry.

Ensures a value is in the entry by inserting the result of the default function if empty, and returns a mutable reference to the value in the entry.

Provides in-place mutable access to an occupied entry before any potential inserts into the map.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.