import Loader from '../Loader';
/**
 * Types of available requests made by from generator function to caller.
 */
declare const enum RequestType {
    IsFolder = 0,
    FileExists = 1,
    FolderContent = 2,
    LoadConfigFile = 3
}
interface RequestIsFolder {
    request: RequestType.IsFolder;
    payload: string;
}
/**
 * Create a request for if given parameter is a folder.
 *
 * @param path - The path to test.
 * @returns The request.
 */
export declare function requestIsFolder(path: string): RequestIsFolder;
interface RequestFileExists {
    request: RequestType.FileExists;
    payload: string;
}
/**
 * Create a request for if the given parameter is an existing file.
 *
 * @param file - The file to test.
 * @returns The request.
 */
export declare function requestFileExits(file: string): RequestFileExists;
interface RequestFolderContent {
    request: RequestType.FolderContent;
    payload: string;
}
/**
 * Create a request for the content of the folder given as parameter.
 *
 * @param folder - The folder to read.
 * @returns The request.
 */
export declare function requestFolderContent(folder: string): RequestFolderContent;
interface RequestLoadConfigFile {
    request: RequestType.LoadConfigFile;
    payload: {
        filePath: string;
        loader: Loader;
    };
}
/**
 * Create a request for the configuration file content loading.
 *
 * @param filePath - The path of the file to load.
 * @param loader - The loader to use.
 * @returns The request.
 */
export declare function requestLoadConfigFile(filePath: string, loader: Loader): RequestLoadConfigFile;
/**
 * All available requests.
 */
export declare type Request = RequestIsFolder | RequestFileExists | RequestFolderContent | RequestLoadConfigFile;
/**
 * Execute a function, given as a generator, used asynchronously.
 *
 * @param stepRun - The function to execute. The function is a generator which may stop to request some
 * information.
 * @returns The return value of the given function.
 */
export declare function asyncExecute<R>(stepRun: Generator<Request, R, any>): Promise<R>;
/**
 * Execute a function, given as a generator, used synchronously.
 *
 * @param stepRun - The function to execute. The function is a generator which may stop to request some
 * information.
 * @returns The return value of the given function.
 */
export declare function syncExecute<R>(stepRun: Generator<Request, R, any>): R;
export {};