/**
 * Special resolve that
 *   - if finalPath null, then, return dir.
 *   - resolve any path to dir if it starts with './' or '../',
 *   - absolute path if it starts with '/'
 *   - baseDir if the path does not start with either '/' or './'
 * @param baseDir
 * @param dir
 * @param finalPath dir or file path
 */
export declare function specialPathResolve(baseDir: string, dir: string, finalPath?: string): string;