Struct TimedOption 

pub struct TimedOption<T, Ttl> { /* private fields */ }

See module level documentation

Implementations

impl<T, B> TimedOption<T, B>

where B: TtlBackend,

pub fn new(value: T, ttl: B::Duration) -> Self

Some value of type T with a ttl.

pub fn empty() -> Self

No value with a expired ttl

pub fn into_option(self) -> Option<T>

Returns an Option<T>. If the value is some but expired a None is returned.

pub fn as_option(&self) -> Option<&T>

Returns an Option<&T>. If the value is some but expired a None is returned.

pub fn into_timed_value(self) -> TimedValue<T>

Returns an TimedValue<T>.

pub fn as_timed_value(&self) -> TimedValue<&T>

Returns an TimedValue<&T>.

pub fn as_ref(&self) -> TimedOption<&T, B>

Converts from &TimedOption<T> to TimedOption<&T>.

pub fn expire(&mut self)

Expires the current ttl.

pub fn clear(&mut self)

Sets value to None.

pub fn take(&mut self) -> Option<T>

Takes the value out of the TimedOption, returning an Option and leaving a None in its place.

pub fn take_timed_value(&mut self) -> TimedValue<T>

Takes the value out of the TimedOption, Returning a TimedValue and leaving a None in its place.

pub fn is_some(&self) -> bool

Returns true if the timed-option is Some value and has not expired.

pub fn is_none(&self) -> bool

Returns true if the timed-option is None value or it has expired.

pub fn ok_or<E>(self, err: E) -> Result<T, E>

pub fn ok_or_else<E>(self, err: impl FnOnce(Option<T>) -> E) -> Result<T, E>

pub fn map<U>(self, f: impl FnOnce(T) -> U) -> TimedOption<U, B>

Trait Implementations

impl<T: Clone, Ttl: Clone> Clone for TimedOption<T, Ttl>

fn clone(&self) -> TimedOption<T, Ttl>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug, Ttl: Debug> Debug for TimedOption<T, Ttl>

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

Formats the value using the given formatter.

impl<'de, T, Ttl> Deserialize<'de> for TimedOption<T, Ttl>

where T: Deserialize<'de>, Ttl: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T, B> From<TimedOption<T, B>> for Option<T>

where B: TtlBackend,

fn from(value: TimedOption<T, B>) -> Self

Converts to this type from the input type.

impl<T, B> From<TimedOption<T, B>> for TimedValue<T>

where B: TtlBackend,

fn from(value: TimedOption<T, B>) -> Self

Converts to this type from the input type.

impl<T, Ttl> Serialize for TimedOption<T, Ttl>

where T: Serialize, Ttl: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Copy, Ttl: Copy> Copy for TimedOption<T, Ttl>