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IntervalEndpoints

Struct IntervalEndpoints 

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pub struct IntervalEndpoints {
    pub from: Option<TimePoint>,
    pub to: Option<TimePoint>,
}
Expand description

A resolved time value — either a single point or an interval.

use duckling::{parse, Locale, Lang, Context, Options, DimensionKind,
               DimensionValue, TimeValue, TimePoint, Grain};
use chrono::{NaiveDate, TimeZone, Utc};

let locale = Locale::new(Lang::EN, None);
let context = Context {
    reference_time: Utc.with_ymd_and_hms(2013, 2, 12, 4, 30, 0).unwrap(),
    ..Context::default()
};
let options = Options::default();

// Single time point
let results = parse("tomorrow", &locale, &[DimensionKind::Time], &context, &options);
if let DimensionValue::Time(TimeValue::Single { value: TimePoint::Naive { value, grain }, .. }) = &results[0].value {
    assert_eq!(*value, NaiveDate::from_ymd_opt(2013, 2, 13).unwrap().and_hms_opt(0, 0, 0).unwrap());
    assert_eq!(*grain, Grain::Day);
} else { panic!("expected Naive time point"); }

// Time interval
let results = parse("from 3pm to 5pm", &locale, &[DimensionKind::Time], &context, &options);
if let DimensionValue::Time(TimeValue::Interval { from: Some(f), to: Some(t), .. }) = &results[0].value {
    assert!(matches!(f, TimePoint::Naive { value, grain: Grain::Hour }
        if *value == NaiveDate::from_ymd_opt(2013, 2, 12).unwrap().and_hms_opt(15, 0, 0).unwrap()));
    assert!(matches!(t, TimePoint::Naive { value, grain: Grain::Hour }
        if *value == NaiveDate::from_ymd_opt(2013, 2, 12).unwrap().and_hms_opt(18, 0, 0).unwrap()));
} else { panic!("expected Interval time value"); }

A pair of interval endpoints, used in the values array for intervals.

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§from: Option<TimePoint>

The start of the interval, if bounded.

§to: Option<TimePoint>

The end of the interval, if bounded.

Trait Implementations§

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impl Clone for IntervalEndpoints

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fn clone(&self) -> IntervalEndpoints

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for IntervalEndpoints

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

Formats the value using the given formatter. Read more
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impl PartialEq for IntervalEndpoints

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Serialize for IntervalEndpoints

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

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for IntervalEndpoints

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.