Struct LanguageRegistry 

pub struct LanguageRegistry { /* private fields */ }

Implementations

impl LanguageRegistry

pub fn line_emphasis( &self, path: &str, old_src: &str, new_src: &str, ) -> Option<(Vec<Vec<Range<usize>>>, Vec<Vec<Range<usize>>>)>

Per-line emphasis byte ranges for both sides, from an AST diff of the full old/new content. None (caller falls back to the textual engine) when the language is unsupported, content is too large, parsing fails, or the diff exceeds its graph budget.

pub fn syntactic_emphasis(&self, file: &mut FileDiff) -> bool

Set char-precise emphasis on file’s diff lines from the AST diff. Returns false when the syntactic engine is unavailable, so the caller can fall back to the textual engine.

impl LanguageRegistry

pub fn build() -> Self

Build the registry with every bundled grammar, reused for the session.

pub fn for_path(&self, path: &str) -> Option<&LangEntry>

The entry whose grammar handles path, keyed by file extension.

impl LanguageRegistry

pub fn scope_index(&self, path: &str, content: &str) -> ScopeIndex

Parse content and index its definition spans for scope lookup. Returns an empty index when the language is unsupported, has no tags query, the file is too large, or parsing fails — callers then show no breadcrumb.

Trait Implementations

impl Default for LanguageRegistry

fn default() -> Self

Returns the “default value” for a type.