Method or_default

src/entity/sparse.rs:445–453

(self)

    /// reference to it. Otherwise a mutable reference to an already existent value is returned.
    #[inline]
    pub fn or_default(self) -> &'a mut V
    where
        V: Default,
    {
        match self {
            Entry::Occupied(entry) => entry.into_mut(),
            Entry::Vacant(entry) => entry.insert(V::default()),
        }
    }
}

impl<K: fmt::Debug, V: fmt::Debug> fmt::Debug for Entry<'_, K, V>