import type { JsTransformerConfig, JsTransformOptions } from '@expo/metro/metro-transform-worker';
import { type NoxcturnalMetroTransformAttempt } from './noxcturnal-transformer';
interface NoxcturnalFile {
    code: string;
    filename: string;
    inputFileSize: number;
    type: 'js/script' | 'js/module' | 'js/module/asset';
    ast?: unknown;
    functionMap: unknown;
    inputSourceMap?: {
        mappings: string;
        names: string[];
        originalCode: string;
    };
    hasCjsExports?: boolean;
}
interface NoxcturnalContext {
    config: JsTransformerConfig;
    projectRoot: string;
    options: JsTransformOptions;
}
export interface NoxcturnalBabelState {
    hasNonDefaultBabelConfig: boolean;
    isDefaultExpoTransformer: boolean;
}
interface NoxcturnalWorkerHooks<File extends NoxcturnalFile, Context extends NoxcturnalContext, Response> {
    completeFullTransform(file: File, context: Context, attempt: Extract<NoxcturnalMetroTransformAttempt, {
        status: 'complete';
    }>): Promise<Response>;
}
export type NoxcturnalWorkerAttempt<Response> = {
    status: 'complete';
    response: Response;
} | {
    status: 'fallback';
};
export declare function isNoxcturnalTransformWorkerEnabled(config: JsTransformerConfig): boolean;
export declare function tryTransformJSWithNoxcturnal<File extends NoxcturnalFile, Context extends NoxcturnalContext, Response>(file: File, context: Context, state: NoxcturnalBabelState, hooks: NoxcturnalWorkerHooks<File, Context, Response>): Promise<NoxcturnalWorkerAttempt<Response>>;
export declare function getNoxcturnalCacheKeyFiles(): readonly string[];
export {};