Struct Stat 

pub struct Stat<T> {
    pub value: T,
    pub as_of: DateTime<Utc>,
    pub n: Option<u64>,
    pub source: Source,
}

A value with the metadata required to render honestly.

Fields

value: T

The actual value.

as_of: DateTime<Utc>

When the engine produced this reading.

n: Option<u64>

Sample size, when the value is a summary statistic. None when the value is a live reading (price, position size, etc.).

source: Source

Where it came from.

Implementations

impl<T> Stat<T>

pub fn new(value: T, source: Source) -> Self

pub fn with_n(self, n: u64) -> Self

pub fn with_as_of(self, as_of: DateTime<Utc>) -> Self

pub fn age(&self, now: DateTime<Utc>) -> Duration

Age of the reading at the given instant.

pub fn is_stale(&self, now: DateTime<Utc>, threshold: Duration) -> bool

Trait Implementations

impl<T: Clone> Clone for Stat<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Stat<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for Stat<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> Serialize for Stat<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.