import { Location } from './location';
/**
 * Abstracts storage to file system or html localStorage.
 * TODO: rename Storage to SyncStorage, and this to Storage,
 * and phase out SyncStorage.
 */
export declare class AsyncStorage {
    readonly location: Location;
    private readonly localStorage;
    /**
     * @param location file or logical path
     */
    constructor(location: string);
    exists(): Promise<boolean>;
    read(): Promise<string | undefined>;
    /**
     * For file system storage, all newlines are replaced with OS-appropriate
     */
    write(contents: string): Promise<void>;
    /**
     * For file system storage, all newlines are replaced with OS-appropriate
     */
    append(contents: string): Promise<void>;
    insert(contents: string, start: number): Promise<void>;
    padLines(start: number, lines: number): Promise<void>;
    clear(): Promise<void>;
    remove(): Promise<void>;
    /**
     * TODO local storage
     */
    mkdir(): Promise<void>;
    toString(): string;
}
/**
 * Abstracts storage to file system or html localStorage.
 */
export declare class Storage {
    readonly location: Location;
    private readonly localStorage;
    /**
     * @param location file or logical path
     */
    constructor(location: string);
    get exists(): boolean;
    read(): string | undefined;
    /**
     * For file system storage, all newlines are replaced with OS-appropriate
     */
    write(contents: string): void;
    /**
     * For file system storage, all newlines are replaced with OS-appropriate
     */
    append(contents: string): void;
    insert(contents: string, start: number): void;
    padLines(start: number, lines: number): void;
    clear(): void;
    remove(): void;
    mkdir(): void;
    toString(): string;
}