Struct AsOf 

pub struct AsOf {
    pub year: u16,
    pub month: u8,
    pub day: u8,
}

The date a price was correct on.

A plain calendar date with no timezone, because pricing changes on a published date rather than at an instant. Ordering is chronological, which is the only thing a staleness check needs.

Fields

year: u16

Four-digit year.

month: u8

Month, 1–12.

day: u8

Day, 1–31.

Implementations

impl AsOf

pub fn new(year: u16, month: u8, day: u8) -> Result<Self, AsOfParseError>

A date, checked.

Errors

AsOfParseError::OutOfRange if the month or day is not a calendar value. Day-of-month is checked against the month’s real length, including February in leap years — a date that cannot exist is a typo, and a typo in a pricing date is how stale pricing goes unnoticed.

pub fn is_older_than(self, horizon: Self) -> bool

Whether this date is older than horizon.

The horizon is supplied rather than computed from the clock: reading the wall clock here would make compilation nondeterministic, and a flow that compiles today and fails tomorrow with no change to its bytes is exactly what the determinism audit exists to prevent.

Trait Implementations

impl Clone for AsOf

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for AsOf

impl Debug for AsOf

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AsOf

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for AsOf

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

Formats the value using the given formatter.

impl Eq for AsOf

impl From<AsOf> for String

fn from(date: AsOf) -> Self

Converts to this type from the input type.

impl FromStr for AsOf

type Err = AsOfParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for AsOf

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for AsOf

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for AsOf

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for AsOf

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for AsOf

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for AsOf

impl TryFrom<String> for AsOf

type Error = AsOfParseError

The type returned in the event of a conversion error.

fn try_from(s: String) -> Result<Self, Self::Error>

Performs the conversion.