Enum TimedValue 

pub enum TimedValue<T> {
    Valid(T),
    Expired(T),
    None,
}

An enum representing a value that is associated with a time validity status.

TimedValue can be used to indicate whether a value is valid, expired, or absent (none).

Variants

Valid(T)

value of type T that is considered valid

Expired(T)

value of type T that has expired and is no longer considered valid

None

Indicates the absence of a value.

Implementations

impl<T> TimedValue<T>

pub const fn is_valid(&self) -> bool

Returns true if the TimedValueisValid`.

pub const fn is_expired(&self) -> bool

Returns true if the TimedValue is Expired.

pub const fn is_none(&self) -> bool

Returns true if the TimedValue is None.

pub const fn has_value(&self) -> bool

Returns true if the TimedValue is Valid or Expired.

pub const fn as_ref(&self) -> TimedValue<&T>

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

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) -> TimedValue<U>

Trait Implementations

impl<T: Clone> Clone for TimedValue<T>

fn clone(&self) -> TimedValue<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for TimedValue<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for TimedValue<T>

where T: 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 TimedValue<T>

where B: TtlBackend,

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

Converts to this type from the input type.

impl<T: PartialEq> PartialEq for TimedValue<T>

fn eq(&self, other: &TimedValue<T>) -> 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<T> Serialize for TimedValue<T>

where T: 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> Copy for TimedValue<T>

impl<T: Eq> Eq for TimedValue<T>

impl<T> StructuralPartialEq for TimedValue<T>