Struct serde_with::chrono::IsoWeek

pub struct IsoWeek { /* private fields */ }

Available on crate feature chrono only.

Expand description

ISO 8601 week.

This type, combined with Weekday, constitutes the ISO 8601 week date. One can retrieve this type from the existing Datelike types via the Datelike::iso_week method.

Implementations§

impl IsoWeek

pub const fn year(&self) -> i32

Returns the year number for this ISO week.

Example

use chrono::{NaiveDate, Datelike, Weekday};

let d = NaiveDate::from_isoywd_opt(2015, 1, Weekday::Mon).unwrap();
assert_eq!(d.iso_week().year(), 2015);

This year number might not match the calendar year number. Continuing the example…

assert_eq!(d.year(), 2014);
assert_eq!(d, NaiveDate::from_ymd_opt(2014, 12, 29).unwrap());

pub const fn week(&self) -> u32

Returns the ISO week number starting from 1.

The return value ranges from 1 to 53. (The last week of year differs by years.)

Example

use chrono::{NaiveDate, Datelike, Weekday};

let d = NaiveDate::from_isoywd_opt(2015, 15, Weekday::Mon).unwrap();
assert_eq!(d.iso_week().week(), 15);

pub const fn week0(&self) -> u32

Returns the ISO week number starting from 0.

The return value ranges from 0 to 52. (The last week of year differs by years.)

Example

use chrono::{NaiveDate, Datelike, Weekday};

let d = NaiveDate::from_isoywd_opt(2015, 15, Weekday::Mon).unwrap();
assert_eq!(d.iso_week().week0(), 14);

Trait Implementations§

impl Clone for IsoWeek

fn clone(&self) -> IsoWeek

Returns a copy of the value. Read more

1.0.0 · source§

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

Performs copy-assignment from source. Read more

impl Debug for IsoWeek

The Debug output of the ISO week w is the same as d.format("%G-W%V") where d is any NaiveDate value in that week.

Example

use chrono::{NaiveDate, Datelike};

assert_eq!(format!("{:?}", NaiveDate::from_ymd_opt(2015,  9,  5).unwrap().iso_week()), "2015-W36");
assert_eq!(format!("{:?}", NaiveDate::from_ymd_opt(   0,  1,  3).unwrap().iso_week()), "0000-W01");
assert_eq!(format!("{:?}", NaiveDate::from_ymd_opt(9999, 12, 31).unwrap().iso_week()), "9999-W52");

ISO 8601 requires an explicit sign for years before 1 BCE or after 9999 CE.

assert_eq!(format!("{:?}", NaiveDate::from_ymd_opt(    0,  1,  2).unwrap().iso_week()),  "-0001-W52");
assert_eq!(format!("{:?}", NaiveDate::from_ymd_opt(10000, 12, 31).unwrap().iso_week()), "+10000-W52");

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

Formats the value using the given formatter. Read more

impl Hash for IsoWeek

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

Feeds this value into the given Hasher. Read more

1.3.0 · source§

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

Feeds a slice of this type into the given Hasher. Read more

impl Ord for IsoWeek

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

This method returns an Ordering between self and other. Read more

1.21.0 · source§

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

Compares and returns the maximum of two values. Read more

1.21.0 · source§

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

Compares and returns the minimum of two values. Read more

1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more

impl PartialEq<IsoWeek> for IsoWeek

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

This method tests for self and other values to be equal, and is used by ==.

1.0.0 · source§

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<IsoWeek> for IsoWeek

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

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

1.0.0 · source§

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

This method tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · source§

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

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · source§

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

This method tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · source§

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

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl Copy for IsoWeek

impl Eq for IsoWeek

impl StructuralEq for IsoWeek

impl StructuralPartialEq for IsoWeek

Auto Trait Implementations§

impl RefUnwindSafe for IsoWeek

impl Send for IsoWeek

impl Sync for IsoWeek

impl Unpin for IsoWeek

impl UnwindSafe for IsoWeek

Blanket Implementations§

impl<T> Any for Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for Twhere T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for Twhere T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for Twhere U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.