Struct OccupiedEntry 

pub struct OccupiedEntry<'a, T> { /* private fields */ }

Some

Implementations

impl<'a, T> OccupiedEntry<'a, T>

pub fn get(&self) -> &T

Gets a reference to the value within Some.

pub fn get_mut(&mut self) -> &mut T

Gets a mutable reference to the value within Some.

If you need a reference to the OccupiedEntry that may outlive the destruction of the Entry value, see into_mut.

pub fn insert(&mut self, value: T) -> T

Option::replace. Returns T instead of Option<T>, like mem::replace(x, value) within if let Some(x) = o context.

pub fn into_mut(self) -> &'a mut T

Converts the entry into a mutable reference to its value.

If you need multiple references to the OccupiedEntry, see get_mut.

pub fn remove(self) -> T

Option::take. Returns T instead of Option<T>.

This method is the main reason for this crate to exist: this allows avoiding doing double-checks in code that needs to do deferred take.