pub struct PropertyEnumToValueNameSparseMapper<T> {
    map: DataPayload<ErasedEnumToValueNameSparseMapV1Marker>,
    markers: PhantomData<fn(_: T)>,
}
Expand description

A struct capable of looking up a property name from a value Access its data by calling Self::as_borrowed() and using the methods on PropertyEnumToValueNameSparseMapperBorrowed.

This mapper is used for properties with sparse values, like CanonicalCombiningClass. It may be obtained using methods like CanonicalCombiningClass::get_enum_to_long_name_mapper().

The name returned may be a short ("KV") or long ("Kana_Voicing") name, depending on the constructor used.

§Example

use icu::properties::CanonicalCombiningClass;

let lookup = CanonicalCombiningClass::enum_to_long_name_mapper();
assert_eq!(
    lookup.get(CanonicalCombiningClass::KanaVoicing),
    Some("Kana_Voicing")
);
assert_eq!(
    lookup.get(CanonicalCombiningClass::AboveLeft),
    Some("Above_Left")
);

Fields§

§map: DataPayload<ErasedEnumToValueNameSparseMapV1Marker>§markers: PhantomData<fn(_: T)>

Implementations§

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impl<T: TrieValue> PropertyEnumToValueNameSparseMapper<T>

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pub fn as_borrowed(&self) -> PropertyEnumToValueNameSparseMapperBorrowed<'_, T>

Construct a borrowed version of this type that can be queried.

This avoids a potential small underlying cost per API call (like get_static()) by consolidating it up front.

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pub(crate) fn from_data<M>(data: DataPayload<M>) -> Self
where M: DataMarker<Yokeable = PropertyEnumToValueNameSparseMapV1<'static>>,

Construct a new one from loaded data

Typically it is preferable to use methods on individual property value types (like [Script::TBD()]) instead.

Trait Implementations§

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impl<T: Debug> Debug for PropertyEnumToValueNameSparseMapper<T>

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

Formats the value using the given formatter. Read more

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> 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, 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.
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> MaybeSendSync for T