Struct icu_collator::elements::CharacterAndClassAndTrieValue

struct CharacterAndClassAndTrieValue {
    c_and_c: CharacterAndClass,
    trie_val: u32,
}

This struct makes the handling of the upcoming buffer easily so that trie lookups are done at most once. However, when upcoming[0] is an undecomposed starter, we don’t need the ccc yet, and when lookahead has already done the trie lookups, we don’t need trie_value, as it is implied by ccc.

TODO(#2386): This struct carries redundant information, and upcoming should be split into a buffer of CharacterAndClass and an Option<CharacterAndTrieValue>, but that refactoring isn’t 100% necessary, so focusing on data format stability for 1.0.

(Deliberately non-Copy, because CharacterAndClass is non-Copy.)

Fields

c_and_c: CharacterAndClass

trie_val: u32

Implementations

impl CharacterAndClassAndTrieValue

pub fn new_with_non_decomposing_starter(c: char) -> Self

pub fn new_with_non_zero_ccc(c: char, ccc: CanonicalCombiningClass) -> Self

pub fn new_with_non_special_decomposition_trie_val( c: char, trie_val: u32, ) -> Self

pub fn new_with_trie_val(c: char, trie_val: u32) -> Self

pub fn decomposition_starts_with_non_starter(&self) -> bool

fn character(&self) -> char

fn ccc(&self) -> CanonicalCombiningClass

Trait Implementations

impl Clone for CharacterAndClassAndTrieValue

fn clone(&self) -> CharacterAndClassAndTrieValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CharacterAndClassAndTrieValue

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

Formats the value using the given formatter.