Struct liquid::model::scalar::Date

pub struct Date { /* fields omitted */ }

Liquid's native date only type.

Implementations

impl Date

pub fn from_ymd(year: i32, month: u32, day: u32) -> Date

Makes a new NaiveDate from the calendar date (year, month and day).

Panics on the out-of-range date, invalid month and/or day.

pub fn from_str(other: &str) -> Option<Date>

Convert a str to Self

Methods from Deref<Target = NaiveDate>

pub fn and_time(&self, time: NaiveTime) -> NaiveDateTime

Makes a new NaiveDateTime from the current date and given NaiveTime.

Example

use chrono::{NaiveDate, NaiveTime, NaiveDateTime};

let d = NaiveDate::from_ymd(2015, 6, 3);
let t = NaiveTime::from_hms_milli(12, 34, 56, 789);

let dt: NaiveDateTime = d.and_time(t);
assert_eq!(dt.date(), d);
assert_eq!(dt.time(), t);

pub fn and_hms(&self, hour: u32, min: u32, sec: u32) -> NaiveDateTime

Makes a new NaiveDateTime from the current date, hour, minute and second.

No leap second is allowed here; use NaiveDate::and_hms_* methods with a subsecond parameter instead.

Panics on invalid hour, minute and/or second.

Example

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

let d = NaiveDate::from_ymd(2015, 6, 3);

let dt: NaiveDateTime = d.and_hms(12, 34, 56);
assert_eq!(dt.year(), 2015);
assert_eq!(dt.weekday(), Weekday::Wed);
assert_eq!(dt.second(), 56);

pub fn and_hms_opt(
    &self,
    hour: u32,
    min: u32,
    sec: u32
) -> Option<NaiveDateTime>

Makes a new NaiveDateTime from the current date, hour, minute and second.

No leap second is allowed here; use NaiveDate::and_hms_*_opt methods with a subsecond parameter instead.

Returns None on invalid hour, minute and/or second.

Example

use chrono::NaiveDate;

let d = NaiveDate::from_ymd(2015, 6, 3);
assert!(d.and_hms_opt(12, 34, 56).is_some());
assert!(d.and_hms_opt(12, 34, 60).is_none()); // use `and_hms_milli_opt` instead
assert!(d.and_hms_opt(12, 60, 56).is_none());
assert!(d.and_hms_opt(24, 34, 56).is_none());

pub fn and_hms_milli(
    &self,
    hour: u32,
    min: u32,
    sec: u32,
    milli: u32
) -> NaiveDateTime

Makes a new NaiveDateTime from the current date, hour, minute, second and millisecond.

The millisecond part can exceed 1,000 in order to represent the leap second.

Panics on invalid hour, minute, second and/or millisecond.

Example

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

let d = NaiveDate::from_ymd(2015, 6, 3);

let dt: NaiveDateTime = d.and_hms_milli(12, 34, 56, 789);
assert_eq!(dt.year(), 2015);
assert_eq!(dt.weekday(), Weekday::Wed);
assert_eq!(dt.second(), 56);
assert_eq!(dt.nanosecond(), 789_000_000);

pub fn and_hms_milli_opt(
    &self,
    hour: u32,
    min: u32,
    sec: u32,
    milli: u32
) -> Option<NaiveDateTime>

Makes a new NaiveDateTime from the current date, hour, minute, second and millisecond.

The millisecond part can exceed 1,000 in order to represent the leap second.

Returns None on invalid hour, minute, second and/or millisecond.

Example

use chrono::NaiveDate;

let d = NaiveDate::from_ymd(2015, 6, 3);
assert!(d.and_hms_milli_opt(12, 34, 56,   789).is_some());
assert!(d.and_hms_milli_opt(12, 34, 59, 1_789).is_some()); // leap second
assert!(d.and_hms_milli_opt(12, 34, 59, 2_789).is_none());
assert!(d.and_hms_milli_opt(12, 34, 60,   789).is_none());
assert!(d.and_hms_milli_opt(12, 60, 56,   789).is_none());
assert!(d.and_hms_milli_opt(24, 34, 56,   789).is_none());

pub fn and_hms_micro(
    &self,
    hour: u32,
    min: u32,
    sec: u32,
    micro: u32
) -> NaiveDateTime

Makes a new NaiveDateTime from the current date, hour, minute, second and microsecond.

The microsecond part can exceed 1,000,000 in order to represent the leap second.

Panics on invalid hour, minute, second and/or microsecond.

Example

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

let d = NaiveDate::from_ymd(2015, 6, 3);

let dt: NaiveDateTime = d.and_hms_micro(12, 34, 56, 789_012);
assert_eq!(dt.year(), 2015);
assert_eq!(dt.weekday(), Weekday::Wed);
assert_eq!(dt.second(), 56);
assert_eq!(dt.nanosecond(), 789_012_000);

pub fn and_hms_micro_opt(
    &self,
    hour: u32,
    min: u32,
    sec: u32,
    micro: u32
) -> Option<NaiveDateTime>

Makes a new NaiveDateTime from the current date, hour, minute, second and microsecond.

The microsecond part can exceed 1,000,000 in order to represent the leap second.

Returns None on invalid hour, minute, second and/or microsecond.

Example

use chrono::NaiveDate;

let d = NaiveDate::from_ymd(2015, 6, 3);
assert!(d.and_hms_micro_opt(12, 34, 56,   789_012).is_some());
assert!(d.and_hms_micro_opt(12, 34, 59, 1_789_012).is_some()); // leap second
assert!(d.and_hms_micro_opt(12, 34, 59, 2_789_012).is_none());
assert!(d.and_hms_micro_opt(12, 34, 60,   789_012).is_none());
assert!(d.and_hms_micro_opt(12, 60, 56,   789_012).is_none());
assert!(d.and_hms_micro_opt(24, 34, 56,   789_012).is_none());

pub fn and_hms_nano(
    &self,
    hour: u32,
    min: u32,
    sec: u32,
    nano: u32
) -> NaiveDateTime

Makes a new NaiveDateTime from the current date, hour, minute, second and nanosecond.

The nanosecond part can exceed 1,000,000,000 in order to represent the leap second.

Panics on invalid hour, minute, second and/or nanosecond.

Example

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

let d = NaiveDate::from_ymd(2015, 6, 3);

let dt: NaiveDateTime = d.and_hms_nano(12, 34, 56, 789_012_345);
assert_eq!(dt.year(), 2015);
assert_eq!(dt.weekday(), Weekday::Wed);
assert_eq!(dt.second(), 56);
assert_eq!(dt.nanosecond(), 789_012_345);

pub fn and_hms_nano_opt(
    &self,
    hour: u32,
    min: u32,
    sec: u32,
    nano: u32
) -> Option<NaiveDateTime>

Makes a new NaiveDateTime from the current date, hour, minute, second and nanosecond.

The nanosecond part can exceed 1,000,000,000 in order to represent the leap second.

Returns None on invalid hour, minute, second and/or nanosecond.

Example

use chrono::NaiveDate;

let d = NaiveDate::from_ymd(2015, 6, 3);
assert!(d.and_hms_nano_opt(12, 34, 56,   789_012_345).is_some());
assert!(d.and_hms_nano_opt(12, 34, 59, 1_789_012_345).is_some()); // leap second
assert!(d.and_hms_nano_opt(12, 34, 59, 2_789_012_345).is_none());
assert!(d.and_hms_nano_opt(12, 34, 60,   789_012_345).is_none());
assert!(d.and_hms_nano_opt(12, 60, 56,   789_012_345).is_none());
assert!(d.and_hms_nano_opt(24, 34, 56,   789_012_345).is_none());

pub fn succ(&self) -> NaiveDate

Makes a new NaiveDate for the next calendar date.

Panics when self is the last representable date.

Example

use chrono::NaiveDate;

assert_eq!(NaiveDate::from_ymd(2015,  6,  3).succ(), NaiveDate::from_ymd(2015, 6, 4));
assert_eq!(NaiveDate::from_ymd(2015,  6, 30).succ(), NaiveDate::from_ymd(2015, 7, 1));
assert_eq!(NaiveDate::from_ymd(2015, 12, 31).succ(), NaiveDate::from_ymd(2016, 1, 1));

pub fn succ_opt(&self) -> Option<NaiveDate>

Makes a new NaiveDate for the next calendar date.

Returns None when self is the last representable date.

Example

use chrono::NaiveDate;
use chrono::naive::MAX_DATE;

assert_eq!(NaiveDate::from_ymd(2015, 6, 3).succ_opt(),
           Some(NaiveDate::from_ymd(2015, 6, 4)));
assert_eq!(MAX_DATE.succ_opt(), None);

pub fn pred(&self) -> NaiveDate

Makes a new NaiveDate for the previous calendar date.

Panics when self is the first representable date.

Example

use chrono::NaiveDate;

assert_eq!(NaiveDate::from_ymd(2015, 6, 3).pred(), NaiveDate::from_ymd(2015,  6,  2));
assert_eq!(NaiveDate::from_ymd(2015, 6, 1).pred(), NaiveDate::from_ymd(2015,  5, 31));
assert_eq!(NaiveDate::from_ymd(2015, 1, 1).pred(), NaiveDate::from_ymd(2014, 12, 31));

pub fn pred_opt(&self) -> Option<NaiveDate>

Makes a new NaiveDate for the previous calendar date.

Returns None when self is the first representable date.

Example

use chrono::NaiveDate;
use chrono::naive::MIN_DATE;

assert_eq!(NaiveDate::from_ymd(2015, 6, 3).pred_opt(),
           Some(NaiveDate::from_ymd(2015, 6, 2)));
assert_eq!(MIN_DATE.pred_opt(), None);

pub fn format_with_items<'a, I, B>(&self, items: I) -> DelayedFormat<I> where
    B: Borrow<Item<'a>>,
    I: Iterator<Item = B> + Clone, 

Formats the date with the specified formatting items. Otherwise it is the same as the ordinary format method.

The Iterator of items should be Cloneable, since the resulting DelayedFormat value may be formatted multiple times.

Example

use chrono::NaiveDate;
use chrono::format::strftime::StrftimeItems;

let fmt = StrftimeItems::new("%Y-%m-%d");
let d = NaiveDate::from_ymd(2015, 9, 5);
assert_eq!(d.format_with_items(fmt.clone()).to_string(), "2015-09-05");
assert_eq!(d.format("%Y-%m-%d").to_string(),             "2015-09-05");

The resulting DelayedFormat can be formatted directly via the Display trait.

assert_eq!(format!("{}", d.format_with_items(fmt)), "2015-09-05");

pub fn format(&self, fmt: &'a str) -> DelayedFormat<StrftimeItems<'a>>

Formats the date with the specified format string. See the format::strftime module on the supported escape sequences.

This returns a DelayedFormat, which gets converted to a string only when actual formatting happens. You may use the to_string method to get a String, or just feed it into print! and other formatting macros. (In this way it avoids the redundant memory allocation.)

A wrong format string does not issue an error immediately. Rather, converting or formatting the DelayedFormat fails. You are recommended to immediately use DelayedFormat for this reason.

Example

use chrono::NaiveDate;

let d = NaiveDate::from_ymd(2015, 9, 5);
assert_eq!(d.format("%Y-%m-%d").to_string(), "2015-09-05");
assert_eq!(d.format("%A, %-d %B, %C%y").to_string(), "Saturday, 5 September, 2015");

The resulting DelayedFormat can be formatted directly via the Display trait.

assert_eq!(format!("{}", d.format("%Y-%m-%d")), "2015-09-05");
assert_eq!(format!("{}", d.format("%A, %-d %B, %C%y")), "Saturday, 5 September, 2015");

Trait Implementations

impl Clone for Date

fn clone(&self) -> Date

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Date

impl Datelike for Date

fn year(&self) -> i32

Returns the year number in the calendar date.

fn month(&self) -> u32

Returns the month number starting from 1.

fn month0(&self) -> u32

Returns the month number starting from 0.

fn day(&self) -> u32

Returns the day of month starting from 1.

fn day0(&self) -> u32

Returns the day of month starting from 0.

fn ordinal(&self) -> u32

Returns the day of year starting from 1.

fn ordinal0(&self) -> u32

Returns the day of year starting from 0.

fn weekday(&self) -> Weekday

Returns the day of week.

fn iso_week(&self) -> IsoWeek

Returns the ISO week.

fn with_year(&self, year: i32) -> Option<Date>

Makes a new value with the year number changed.

fn with_month(&self, month: u32) -> Option<Date>

Makes a new value with the month number (starting from 1) changed.

fn with_month0(&self, month0: u32) -> Option<Date>

Makes a new value with the month number (starting from 0) changed.

fn with_day(&self, day: u32) -> Option<Date>

Makes a new value with the day of month (starting from 1) changed.

fn with_day0(&self, day0: u32) -> Option<Date>

Makes a new value with the day of month (starting from 0) changed.

fn with_ordinal(&self, ordinal: u32) -> Option<Date>

Makes a new value with the day of year (starting from 1) changed.

fn with_ordinal0(&self, ordinal0: u32) -> Option<Date>

Makes a new value with the day of year (starting from 0) changed.

fn year_ce(&self) -> (bool, u32)

Returns the absolute year number starting from 1 with a boolean flag, which is false when the year predates the epoch (BCE/BC) and true otherwise (CE/AD).

fn num_days_from_ce(&self) -> i32

Counts the days in the proleptic Gregorian calendar, with January 1, Year 1 (CE) as day 1.

impl Debug for Date

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

Formats the value using the given formatter.

impl Deref for Date

type Target = NaiveDate

The resulting type after dereferencing.

fn deref(&self) -> &<Date as Deref>::Target

Dereferences the value.

impl DerefMut for Date

fn deref_mut(&mut self) -> &mut <Date as Deref>::Target

Mutably dereferences the value.

impl<'de> Deserialize<'de> for Date

fn deserialize<__D>(
    __deserializer: __D
) -> Result<Date, <__D as Deserializer<'de>>::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Display for Date

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

Formats the value using the given formatter.

impl Eq for Date

impl<'s> From<Date> for ScalarCow<'s>

fn from(s: Date) -> ScalarCow<'s>

Performs the conversion.

impl Hash for Date

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].

impl Ord for Date

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

This method returns an [Ordering] between self and other.

#[must_use]fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl<'s> PartialEq<Date> for ScalarCow<'s>

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'v> PartialEq<Date> for ValueViewCmp<'v>

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<'v> PartialEq<Date> for ValueCow<'v>

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialEq<Date> for Date

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

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

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

This method tests for !=.

impl PartialEq<Date> for Value

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

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

#[must_use]fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Date> for Date

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

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

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

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

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

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

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

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

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

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

impl<'s> PartialOrd<Date> for ScalarCow<'s>

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

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

#[must_use]fn lt(&self, other: &Rhs) -> bool

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

#[must_use]fn le(&self, other: &Rhs) -> bool

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

#[must_use]fn gt(&self, other: &Rhs) -> bool

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

#[must_use]fn ge(&self, other: &Rhs) -> bool

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

impl Serialize for Date

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

Serialize this value into the given Serde serializer.

impl StructuralEq for Date

impl StructuralPartialEq for Date

impl ValueView for Date

fn as_debug(&self) -> &dyn Debug

Get a Debug representation

fn render(&self) -> DisplayCow

A Display for a BoxedValue rendered for the user.

fn source(&self) -> DisplayCow

A Display for a Value as source code.

fn type_name(&self) -> &'static str

Report the data type (generally for error reporting).

fn query_state(&self, state: State) -> bool

Query the value's state

fn to_kstr(&self) -> KStringCow

Interpret as a string.

fn to_value(&self) -> Value

Convert to an owned type.

fn as_scalar(&self) -> Option<ScalarCow>

Extracts the scalar value if it is a scalar.

fn is_scalar(&self) -> bool

Tests whether this value is a scalar

fn as_array(&self) -> Option<&dyn ArrayView>

Extracts the array value if it is an array.

fn is_array(&self) -> bool

Tests whether this value is an array

fn as_object(&self) -> Option<&dyn ObjectView>

Extracts the object value if it is a object.

fn is_object(&self) -> bool

Tests whether this value is an object

fn as_state(&self) -> Option<State>

Extracts the state if it is one

fn is_state(&self) -> bool

Tests whether this value is state

fn is_nil(&self) -> bool

Tests whether this value is nil