/**
 * @file OPFS backend for {@link TinyFSCore}.
 */
import TinyFSCore from '../../index.mjs';
export type OPFSFileSystemOptions = {
    /**
     * Custom OPFS root. Defaults to `navigator.storage.getDirectory()`.
     */
    root?: FileSystemDirectoryHandle;
};
/**
 * @typedef {Object} OPFSFileSystemOptions
 * @property {FileSystemDirectoryHandle} [root] Custom OPFS root. Defaults to `navigator.storage.getDirectory()`.
 */
/**
 * Origin Private File System backend.
 *
 * OPFS has no symbolic links, no permission bits and no way to set
 * timestamps. Those operations are emulated by the base class and stored in
 * memory, so they are lost when the tab is closed.
 * @beta
 */
declare class TinyOPFSFileSystem extends TinyFSCore {
    #private;
    /**
     * @param {import('../../index.mjs').FSOptions & OPFSFileSystemOptions} [options] Construction options.
     */
    constructor(options?: import('../../index.mjs').FSOptions & OPFSFileSystemOptions);
    /** @returns {import('../../index.mjs').FSCapabilities} The capabilities advertised by OPFS. */
    static get capabilities(): import('../../index.mjs').FSCapabilities;
    /**
     * Resolves the root directory handle used by every operation.
     *
     * Backends that store their tree inside a nested location — such as a
     * storage bucket — override this hook and return the nested directory.
     *
     * @protected
     * @returns {Promise<FileSystemDirectoryHandle>} The OPFS root directory.
     * @throws {Error} When OPFS is not reachable in the current context.
     */
    protected _resolveRoot(): Promise<FileSystemDirectoryHandle>;
    /**
     * @override
     * @param {string} targetPath Absolute path of the file.
     * @returns {Promise<Uint8Array>} The raw file contents.
     */
    _readFile(targetPath: string): Promise<Uint8Array>;
    /**
     * @override
     * @param {string} targetPath Absolute path of the file.
     * @param {Uint8Array} bytes Payload to persist.
     * @param {import('../../index.mjs').TWriteFileOptions} options Write options.
     * @returns {Promise<void>} Resolves once the payload is committed.
     */
    _writeFile(targetPath: string, bytes: Uint8Array, options: import('../../index.mjs').TWriteFileOptions): Promise<void>;
    /**
     * @override
     * @param {string} targetPath Absolute path of the directory.
     * @returns {Promise<import('../../stats.mjs').FSDirectoryEntry[]>} The directory entries.
     */
    _readdir(targetPath: string): Promise<import('../../stats.mjs').FSDirectoryEntry[]>;
    /**
     * @override
     * @param {string} targetPath Absolute path of the directory.
     * @param {import('../../index.mjs').TMkdirOptions} options Creation options.
     * @returns {Promise<void>} Resolves once the directory exists.
     */
    _mkdir(targetPath: string, options: import('../../index.mjs').TMkdirOptions): Promise<void>;
    /**
     * @override
     * @param {string} targetPath Absolute path of the entry.
     * @param {import('../../index.mjs').TRmOptions} options Removal options.
     * @returns {Promise<void>} Resolves once the entry is gone.
     */
    _rm(targetPath: string, options: import('../../index.mjs').TRmOptions): Promise<void>;
    /**
     * @override
     * @param {string} targetPath Absolute path of the entry.
     * @returns {Promise<import('../../stats.mjs').FSStatDescriptor | undefined>}
     */
    _stat(targetPath: string): Promise<import('../../stats.mjs').FSStatDescriptor | undefined>;
    /**
     * @override
     * @param {string} oldPath Current absolute path.
     * @param {string} newPath Target absolute path.
     * @returns {Promise<void>} Resolves once the move is complete.
     */
    _rename(oldPath: string, newPath: string): Promise<void>;
    /**
     * @override
     * @param {string} sourcePath Absolute path of the source file.
     * @param {string} destinationPath Absolute path of the destination file.
     * @returns {Promise<void>} Resolves once the copy is complete.
     */
    _copyFile(sourcePath: string, destinationPath: string): Promise<void>;
}
export default TinyOPFSFileSystem;
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