Trait LanguageBackend 

pub trait LanguageBackend: Send + Sync {
    // Required methods
    fn mode(&self) -> LangMode;
    fn build_candidate_keys(
        &self,
        text: &str,
        budget: KeyBudget,
    ) -> Vec<SearchKey>;
    fn expand_query(
        &self,
        query: &str,
        budget: QueryBudget,
    ) -> Vec<QueryVariant>;

    // Provided method
    fn normalize_candidate(&self, text: &str) -> String { ... }
}

Language-specific candidate and query expansion.

Required Methods

fn mode(&self) -> LangMode

Returns the language mode implemented by this backend.

fn build_candidate_keys(&self, text: &str, budget: KeyBudget) -> Vec<SearchKey>

Builds additional language-specific search keys for candidate text.

fn expand_query(&self, query: &str, budget: QueryBudget) -> Vec<QueryVariant>

Expands a user query into language-specific query variants.

Provided Methods

fn normalize_candidate(&self, text: &str) -> String

Normalizes candidate display text before the base normalized key is added.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl LanguageBackend for PlainBackend