Struct icu::casemap::provider::CaseMapUnfoldV1

source ยท
pub struct CaseMapUnfoldV1<'data> {
    pub map: ZeroMap<'data, PotentialUtf8, str>,
}
Expand description

Reverse case folding data. Maps from multi-character strings back to code-points that fold to those strings.

๐Ÿšง This code is considered unstable; it may change at any time, in breaking or non-breaking ways, including in SemVer minor releases. While the serde representation of data structs is guaranteed to be stable, their Rust representation might not be. Use with caution.

Fieldsยง

ยงmap: ZeroMap<'data, PotentialUtf8, str>

The actual map. Maps from strings to a list of codepoints, stored as a contiguous UTF-8 string

Implementationsยง

sourceยง

impl CaseMapUnfoldV1<'_>

source

pub fn try_from_icu(raw: &[u16]) -> Result<CaseMapUnfoldV1<'_>, DataError>

Creates a new CaseMapUnfoldV1 using data exported by the icuexportdata tool in ICU4C.

Unfold data is exported by ICU as an array of 16-bit values, representing a short header followed by a two-column key/value table. The header indicates:

  • The number of rows.
  • The number of UTF16 code units per row.
  • The number of UTF16 code units in the first (key) column. (The number of code units in the value column can be derived from the above.)

The key in the first column is the case folding of each of the code points in the second column. Keys/values that are shorter than the column width are null-terminated. The table is sorted by key. Binary search is used to find the value.

Rust strings are UTF8 by default. To avoid the cost of converting from UTF16 on access, we convert the ICU data into a more convenient format during construction.

Trait Implementationsยง

sourceยง

impl<'data> Bake for CaseMapUnfoldV1<'data>

sourceยง

fn bake(&self, env: &CrateEnv) -> TokenStream

Returns a TokenStream that would evaluate to self. Read more
sourceยง

impl<'data> BakeSize for CaseMapUnfoldV1<'data>

sourceยง

fn borrows_size(&self) -> usize

Returns the size
sourceยง

impl<'data> Clone for CaseMapUnfoldV1<'data>

sourceยง

fn clone(&self) -> CaseMapUnfoldV1<'data>

Returns a copy of the value. Read more
1.0.0 ยท sourceยง

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

Performs copy-assignment from source. Read more
sourceยง

impl<'data> Debug for CaseMapUnfoldV1<'data>

sourceยง

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

Formats the value using the given formatter. Read more
sourceยง

impl<'de, 'data> Deserialize<'de> for CaseMapUnfoldV1<'data>
where 'de: 'data,

sourceยง

fn deserialize<__D>( __deserializer: __D, ) -> Result<CaseMapUnfoldV1<'data>, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
sourceยง

impl<'data> PartialEq for CaseMapUnfoldV1<'data>

sourceยง

fn eq(&self, other: &CaseMapUnfoldV1<'data>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 ยท sourceยง

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

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

impl<'data> Serialize for CaseMapUnfoldV1<'data>

sourceยง

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. Read more
sourceยง

impl<'a> Yokeable<'a> for CaseMapUnfoldV1<'static>

sourceยง

type Output = CaseMapUnfoldV1<'a>

This type MUST be Self with the 'static replaced with 'a, i.e. Self<'a>
sourceยง

fn transform(&'a self) -> &'a <CaseMapUnfoldV1<'static> as Yokeable<'a>>::Output

This method must cast self between &'a Self<'static> and &'a Self<'a>. Read more
sourceยง

fn transform_owned(self) -> <CaseMapUnfoldV1<'static> as Yokeable<'a>>::Output

This method must cast self between Self<'static> and Self<'a>. Read more
sourceยง

unsafe fn make( this: <CaseMapUnfoldV1<'static> as Yokeable<'a>>::Output, ) -> CaseMapUnfoldV1<'static>

This method can be used to cast away Self<'a>โ€™s lifetime. Read more
sourceยง

fn transform_mut<F>(&'a mut self, f: F)
where F: 'static + for<'b> FnOnce(&'b mut <CaseMapUnfoldV1<'static> as Yokeable<'a>>::Output),

This method must cast self between &'a mut Self<'static> and &'a mut Self<'a>, and pass it to f. Read more
sourceยง

impl<'zf, 'zf_inner> ZeroFrom<'zf, CaseMapUnfoldV1<'zf_inner>> for CaseMapUnfoldV1<'zf>

sourceยง

fn zero_from(this: &'zf CaseMapUnfoldV1<'zf_inner>) -> CaseMapUnfoldV1<'zf>

Clone the other C into a struct that may retain references into C.
sourceยง

impl<'data> StructuralPartialEq for CaseMapUnfoldV1<'data>

Auto Trait Implementationsยง

ยง

impl<'data> Freeze for CaseMapUnfoldV1<'data>

ยง

impl<'data> RefUnwindSafe for CaseMapUnfoldV1<'data>

ยง

impl<'data> Send for CaseMapUnfoldV1<'data>

ยง

impl<'data> Sync for CaseMapUnfoldV1<'data>

ยง

impl<'data> Unpin for CaseMapUnfoldV1<'data>

ยง

impl<'data> UnwindSafe for CaseMapUnfoldV1<'data>

Blanket Implementationsยง

sourceยง

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

sourceยง

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
sourceยง

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

sourceยง

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
sourceยง

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

sourceยง

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

Mutably borrows from an owned value. Read more
sourceยง

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

sourceยง

unsafe fn clone_to_uninit(&self, dst: *mut T)

๐Ÿ”ฌThis is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
sourceยง

impl<T> From<T> for T

sourceยง

fn from(t: T) -> T

Returns the argument unchanged.

sourceยง

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

sourceยง

fn into(self) -> U

Calls U::from(self).

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

sourceยง

impl<T> IntoEither for T

sourceยง

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
sourceยง

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
sourceยง

impl<T> Serialize for T
where T: Serialize + ?Sized,

sourceยง

fn erased_serialize(&self, serializer: &mut dyn Serializer) -> Result<Ok, Error>

sourceยง

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

sourceยง

type Owned = T

The resulting type after obtaining ownership.
sourceยง

fn to_owned(&self) -> T

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

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

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

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

sourceยง

type Error = Infallible

The type returned in the event of a conversion error.
sourceยง

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

Performs the conversion.
sourceยง

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

sourceยง

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

The type returned in the event of a conversion error.
sourceยง

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

Performs the conversion.
sourceยง

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

sourceยง

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

sourceยง

impl<T> MaybeSendSync for T
where T: Send + Sync,