Function parse_file

src/redundancy.rs:112–116

Parse a source file with the given tree-sitter language and return the `Tree`. Returns `None` when parsing fails (malformed input, missing grammar). Builds a fresh `Parser` per call — the call site for fingerprint computation invokes this once per file, not per node.

(source: &str, language: &tree_sitter::Language)

/// grammar). Builds a fresh `Parser` per call — the call site for
/// fingerprint computation invokes this once per file, not per node.
pub fn parse_file(source: &str, language: &tree_sitter::Language) -> Option<Tree> {
    let mut parser = Parser::new();
    parser.set_language(language).ok()?;
    parser.parse(source, None)
}

/// Locate a child node within `tree` that overlaps the given 0-indexed
/// line range. Used to map a `Node` row (with its `start_line` /