Struct Duration 

pub struct Duration {
    pub seconds: i64,
    pub nanosecond: i32,
}

A signed, exact length of time.

This is a well-known extension type (see ext). The seconds and nanoseconds always have the same sign: -1.5 seconds are seconds: -1 and nanosecond: -500_000_000.

The fallback is the ISO 8601 representation as string (PT1H30M, -PT0.5S). Only hours, minutes and seconds are used and accepted as days, months and years are not of a fixed length. Fractions are only supported for seconds.

use deser::ext::Duration;

let duration: Duration = "PT1H0.5S".parse().unwrap();
assert_eq!(duration, Duration { seconds: 3600, nanosecond: 500_000_000 });
assert_eq!(duration.to_string(), "PT1H0.5S");

core::time::Duration serializes as Duration, as do the duration types of jiff, chrono and time with the respective features.

Fields

seconds: i64

The whole seconds.

nanosecond: i32

The fraction of the second in nanoseconds (-999_999_999 to 999_999_999).

Implementations

impl Duration

pub fn is_valid(&self) -> bool

Returns true if seconds and nanoseconds are in range and have the same sign.

pub fn is_negative(&self) -> bool

Returns true if the duration is negative.

pub fn as_secs_f64(&self) -> f64

Returns the duration in seconds as float.

Trait Implementations

impl Clone for Duration

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 Duration

impl Debug for Duration

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

Formats the value using the given formatter.

impl Default for Duration

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Duration

fn deserialize_atom( slot: &mut Slot<Self>, atom: Atom<'_>, state: &mut State, ) -> Result<(), Error>

Deserializes an atom into the slot.

fn expecting() -> Cow<'static, str>

Returns what the value expects, for error messages.

fn deserialize_into<'out>( out: &'out mut Option<T>, state: &mut State, ) -> SinkHandle<'out, 'de>

Creates a sink that deserializes the value into the given slot.

fn deserialize_borrowed_atom( slot: &mut Slot<T, Self>, atom: Atom<'de>, state: &mut State, ) -> Result<(), Error>

Deserializes an atom that borrows from the data being deserialized into the slot.

fn describe_type(d: &mut dyn Describe)

Describes the Rust shape of the type.

fn initial_value() -> Option<T>

Provides the value of a missing struct field.

fn deserialize_update<'out>( value: &'out mut T, state: &mut State, ) -> SinkHandle<'out, 'de>

Creates a sink that updates an existing value.

impl Display for Duration

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

Formats the value using the given formatter.

impl Eq for Duration

impl Extension for Duration

fn name(&self) -> &str

Returns the human readable name of the extension type.

fn fallback(&self) -> Atom<'_>

Lowers the value into the core data model.

impl FromStr for Duration

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Duration, Error>

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

impl Hash for Duration

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 Duration

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 Duration

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Duration

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 Duration

fn serialize<'a>(value: &'a Self, _state: &mut State) -> Result<Emit<'a>, Error>

Serializes the value.

fn finish(value: &T, state: &mut State) -> Result<(), Error>

Invoked after the serialization finished.

fn is_optional(value: &T) -> bool

Checks if the value represents an optional value.

fn describe(value: &T, d: &mut dyn Describe)

Describes the Rust shape of the value.

fn container_shape(value: &T) -> ContainerShape

Returns the shape of the value if it’s a map or sequence.

impl StructuralPartialEq for Duration