pub struct PropertyValueNameToEnumMapper<T> {
    map: DataPayload<ErasedNameToEnumMapV1Marker>,
    markers: PhantomData<fn() -> T>,
}
Expand description

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

The name can be a short name (Lu), a long name(Uppercase_Letter), or an alias.

Property names can be looked up using “strict” matching (looking for a name that matches exactly), or “loose matching”, where the name is allowed to deviate in terms of ASCII casing, whitespace, underscores, and hyphens.

§Example

use icu::properties::GeneralCategory;

let lookup = GeneralCategory::name_to_enum_mapper();
// short name for value
assert_eq!(
    lookup.get_strict("Lu"),
    Some(GeneralCategory::UppercaseLetter)
);
assert_eq!(
    lookup.get_strict("Pd"),
    Some(GeneralCategory::DashPunctuation)
);
// long name for value
assert_eq!(
    lookup.get_strict("Uppercase_Letter"),
    Some(GeneralCategory::UppercaseLetter)
);
assert_eq!(
    lookup.get_strict("Dash_Punctuation"),
    Some(GeneralCategory::DashPunctuation)
);
// name has incorrect casing
assert_eq!(lookup.get_strict("dashpunctuation"), None);
// loose matching of name
assert_eq!(
    lookup.get_loose("dash-punctuation"),
    Some(GeneralCategory::DashPunctuation)
);
// fake property
assert_eq!(lookup.get_strict("Animated_Gif"), None);

Fields§

§map: DataPayload<ErasedNameToEnumMapV1Marker>§markers: PhantomData<fn() -> T>

Implementations§

source§

impl<T: TrieValue> PropertyValueNameToEnumMapper<T>

source

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

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

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

source

pub(crate) fn from_data<M>(data: DataPayload<M>) -> Self
where M: DataMarker<Yokeable = PropertyValueNameToEnumMapV1<'static>>,

Trait Implementations§

source§

impl<T: Debug> Debug for PropertyValueNameToEnumMapper<T>

source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

source§

fn into(self) -> U

Calls U::from(self).

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

source§

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

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

§

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

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

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

source§

impl<T> MaybeSendSync for T