Struct ScriptWithExtensionsProperty

pub struct ScriptWithExtensionsProperty<'data> {
    pub trie: CodePointTrie<'data, ScriptWithExt>,
    pub extensions: VarZeroVec<'data, ZeroSlice<Script>>,
}

A struct that efficiently stores Script and Script_Extensions property data.

🚧 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.

Fields

trie: CodePointTrie<'data, ScriptWithExt>

Note: The ScriptWithExt values in this array will assume a 12-bit layout. The 2 higher order bits 11..10 will indicate how to deduce the Script value and Script_Extensions value, nearly matching the representation in ICU:

High order 2 bits value	Script	Script_Extensions
3	First value in sub-array, index given by lower 10 bits	Sub-array excluding first value, index given by lower 10 bits
2	Script=Inherited	Entire sub-array, index given by lower 10 bits
1	Script=Common	Entire sub-array, index given by lower 10 bits
0	Value in lower 10 bits	[ Script value ] single-element array

When the lower 10 bits of the value are used as an index, that index is used for the outer-level vector of the nested extensions structure.

extensions: VarZeroVec<'data, ZeroSlice<Script>>

This companion structure stores Script_Extensions values, which are themselves arrays / vectors. This structure only stores the values for cases in which scx(cp) != [ sc(cp) ]. Each sub-vector is distinct. The sub-vector represents the Script_Extensions array value for a code point, and may also indicate Script value, as described for the trie field.

Trait Implementations

impl<'data> Clone for ScriptWithExtensionsProperty<'data>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'data> Debug for ScriptWithExtensionsProperty<'data>

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

Formats the value using the given formatter.

impl<'de: 'data, 'data> Deserialize<'de> for ScriptWithExtensionsProperty<'data>

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl MaybeAsVarULE for ScriptWithExtensionsProperty<'_>

type EncodedStruct = [()]

The VarULE type for this data struct, or [()] if it cannot be represented as VarULE.

impl<'data> PartialEq for ScriptWithExtensionsProperty<'data>

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

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

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

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

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

type Output = ScriptWithExtensionsProperty<'a>

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

fn transform(&'a self) -> &'a Self::Output

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

fn transform_owned(self) -> Self::Output

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

unsafe fn make(this: Self::Output) -> Self

This method can be used to cast away Self<'a>’s lifetime.

fn transform_mut<F>(&'a mut self, f: F)

where F: 'static + for<'b> FnOnce(&'b mut Self::Output),

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

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

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

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

impl<'data> Eq for ScriptWithExtensionsProperty<'data>

impl<'data> StructuralPartialEq for ScriptWithExtensionsProperty<'data>