Struct icu_casemap::provider::data::CaseMapDataULE

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#[repr(transparent)]
pub struct CaseMapDataULE(RawBytesULE<2>);
Expand description

Packed casemappingdata type

Data format, copied from ICU4C casepropsbuilder.cpp:

Trie data word:
Bits
if(exception) {
    15..4   unsigned exception index
} else {
    if(not uncased) {
        15..7   signed delta to simple case mapping code point
                (add delta to input code point)
    } else {
        15..7   reserved, 0
    }
     6..5   0 normal character with cc=0
            1 soft-dotted character
            2 cc=230
            3 other cc
            The runtime code relies on these two bits to be adjacent with this encoding.
}
    4   case-sensitive
    3   exception
    2   case-ignorable
 1..0   0 uncased
        1 lowercase
        2 uppercase
        3 titlecase
        The runtime code relies on the case-ignorable and case type bits 2..0
        to be the lowest bits with this encoding.
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.

Tuple Fieldsยง

ยง0: RawBytesULE<2>

Implementationsยง

Trait Implementationsยง

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impl Clone for CaseMapDataULE

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fn clone(&self) -> CaseMapDataULE

Returns a copy 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 CaseMapDataULE

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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 CaseMapDataULE

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl ULE for CaseMapDataULE

ยงSafety

Safety checklist for ULE:

  1. The type must not include any uninitialized or padding bytes: repr(transparent) wrapper around ULE type
  2. The type must have an alignment of 1 byte: repr(transparent) wrapper around ULE type
  3. The impl of ULE::validate_byte_slice() must return an error if the given byte slice would not represent a valid slice of this type: It does
  4. The impl of ULE::validate_byte_slice() must return an error if the given byte slice cannot be used in its entirety (if its length is not a multiple of size_of::<Self>()): it does, due to the RawBytesULE parse call
  5. All other methods must be left with their default impl, or else implemented according to their respective safety guidelines: They have been
  6. The equality invariant is satisfied
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fn validate_byte_slice(bytes: &[u8]) -> Result<(), ZeroVecError>

Validates a byte slice, &[u8]. Read more
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fn parse_byte_slice(bytes: &[u8]) -> Result<&[Self], ZeroVecError>

Parses a byte slice, &[u8], and return it as &[Self] with the same lifetime. Read more
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unsafe fn from_byte_slice_unchecked(bytes: &[u8]) -> &[Self]

Takes a byte slice, &[u8], and return it as &[Self] with the same lifetime, assuming that this byte slice has previously been run through Self::parse_byte_slice() with success. Read more
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fn as_byte_slice(slice: &[Self]) -> &[u8] โ“˜

Given &[Self], returns a &[u8] with the same lifetime. Read more
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impl Copy for CaseMapDataULE

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impl Eq for CaseMapDataULE

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impl StructuralPartialEq for CaseMapDataULE

Auto Trait Implementationsยง

Blanket Implementationsยง

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

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impl<T> MaybeSendSync for T