Enum TimeExpr 

pub enum TimeExpr {
    Fixed(SystemTime),
    Now {
        offset_secs: f64,
    },
}

Variants

Fixed(SystemTime)

Now

Fields

offset_secs: f64

Implementations

impl TimeExpr

pub fn resolve_at(&self, now: SystemTime) -> SystemTime

Resolves self into a SystemTime, using now as a reference for offset expressions.

Panics

This function may panic if the resulting point in time cannot be represented by the underlying data structure. See TimeExpr::checked_resolve_at for a version without panic.

pub fn checked_resolve_at(&self, now: SystemTime) -> Option<SystemTime>

Resolves self into a SystemTime, using now as a reference for offset expressions. If self is a TimeExpr::Now{offset_secs} and adding offset_secs to now results in a time that would be outside the bounds of the underlying data structure, None is returned.

pub fn checked_add(&self, duration: f64) -> Option<Self>

Adds duration to self, returning None if self is a Fixed(SystemTime) and adding the duration is not possible because the result would be outside the bounds of the underlying data structure (see SystemTime::checked_add). Otherwise returns Some(time_expr).

pub fn checked_sub(&self, duration: f64) -> Option<Self>

Subtracts duration from self, returning None if self is a Fixed(SystemTime) and subtracting the duration is not possible because the result would be outside the bounds of the underlying data structure (see SystemTime::checked_sub). Otherwise returns Some(time_expr).

Trait Implementations

impl Add<f64> for &TimeExpr

type Output = TimeExpr

The resulting type after applying the + operator.

fn add(self, duration: f64) -> TimeExpr

Performs the + operation.

impl Add<f64> for TimeExpr

type Output = TimeExpr

The resulting type after applying the + operator.

fn add(self, duration: f64) -> Self

Performs the + operation.

impl Clone for TimeExpr

fn clone(&self) -> TimeExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TimeExpr

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

Formats the value using the given formatter.

impl Display for TimeExpr

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

Formats the value using the given formatter.

impl From<SystemTime> for TimeExpr

fn from(t: SystemTime) -> Self

Converts to this type from the input type.

impl FromStr for TimeExpr

type Err = ZError

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 PartialEq for TimeExpr

fn eq(&self, other: &TimeExpr) -> 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 TryFrom<TimeExpr> for SystemTime

type Error = ()

The type returned in the event of a conversion error.

fn try_from(value: TimeExpr) -> Result<Self, Self::Error>

Performs the conversion.

impl Copy for TimeExpr

impl StructuralPartialEq for TimeExpr