Struct EntryGuard 

pub struct EntryGuard<'a, V> { /* private fields */ }

Write guard for entry operations, holding structure write lock and value write lock 用于 entry 操作的写守护者，持有结构写锁和值的写锁

Requires structure write lock because it may involve insertion/removal operations 因为可能涉及插入/移除操作，需要结构写锁

Trait Implementations

impl<'a, V> AsMut<V> for EntryGuard<'a, V>

fn as_mut(&mut self) -> &mut V

Converts this type into a mutable reference of the (usually inferred) input type.

impl<'a, V> AsRef<V> for EntryGuard<'a, V>

fn as_ref(&self) -> &V

Converts this type into a shared reference of the (usually inferred) input type.

impl<'a, V> Debug for EntryGuard<'a, V>

where V: Debug,

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

Formats the value using the given formatter.

impl<'a, V> Deref for EntryGuard<'a, V>

type Target = V

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<'a, V> DerefMut for EntryGuard<'a, V>

fn deref_mut(&mut self) -> &mut Self::Target

Mutably dereferences the value.

impl<'a, V> Display for EntryGuard<'a, V>

where V: Display,

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

Formats the value using the given formatter.

impl<'a, V> PartialEq for EntryGuard<'a, V>

where V: PartialEq,

fn eq(&self, other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, V> Eq for EntryGuard<'a, V>

where V: Eq,