/**
 * The single canonical file-extension → language detector (change:
 * fix-language-detection-single-source).
 *
 * This is the ONE place the analyzer decides "what language is this file?" from a path.
 * Every component that maps a file path to a language — signature extraction, AST-aware
 * chunking, skeleton reduction, route parsing, and any future consumer — resolves through
 * {@link detectLanguage} here. A rival `detectLanguage` definition or extension→language
 * literal map anywhere else in the tree is a silent re-divergence (the exact defect this
 * consolidation closes) and fails the singularity guard in `language-support.test.ts`.
 *
 * It lives in this dedicated, dependency-free leaf module (not directly inside
 * `language-support.ts`) so it can be imported by both the signature extractor and the
 * registry without a module cycle — `language-support.ts` derives its capability matrix
 * eagerly from `signature-extractor.ts`'s `SIGNATURE_LANGUAGES`, so the extractor cannot
 * import the registry back. The registry re-exports this function as its public surface,
 * so callers may import it from either module; both resolve to this one definition.
 *
 * Deterministic, no LLM, no I/O.
 */
/**
 * The canonical file-extension → language map. Keys are the lowercased extension WITHOUT
 * the leading dot. (Terraform and Bicep are detected by suffix rather than a plain
 * final-segment extension — `*.tf.json` and the like — so they are handled in
 * {@link detectLanguage} directly, not here.) The `.h` header defaults to C++ (the superset
 * that parses C headers acceptably); a project-aware C-vs-C++ decision is a separate
 * concern — see `resolveHeaderLanguage` in `signature-extractor.ts`.
 */
export declare const EXTENSION_TO_LANGUAGE: Readonly<Record<string, string>>;
/**
 * Resolve a file path to its analyzer language, or the honest `'unknown'` fallback for an
 * extension the canonical map does not know (never a guessed language).
 */
export declare function detectLanguage(filePath: string): string;
//# sourceMappingURL=language-detection.d.ts.map