/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @noformat
 * @oncall react_native
 * @generated SignedSource<<6c8a23a0d2b18f1034a3306276f994bb>>
 *
 * This file was translated from Flow by scripts/generateTypeScriptDefinitions.js
 * Original file: packages/metro-file-map/src/lib/FileSystemChangeAggregator.js
 * To regenerate, run:
 *   js1 build metro-ts-defs (internal) OR
 *   yarn run build-ts-defs (OSS) 
 */

import type {CanonicalPath, FileMetadata, FileSystemListener, ReadonlyFileSystemChanges} from '../flow-types';

export declare class FileSystemChangeAggregator implements FileSystemListener {
  directoryAdded(canonicalPath: CanonicalPath): void;
  directoryRemoved(canonicalPath: CanonicalPath): void;
  fileAdded(canonicalPath: CanonicalPath, data: FileMetadata): void;
  fileModified(canonicalPath: CanonicalPath, oldData: FileMetadata, newData: FileMetadata): void;
  fileRemoved(canonicalPath: CanonicalPath, data: FileMetadata): void;
  getSize(): number;
  getView(): ReadonlyFileSystemChanges<FileMetadata>;
  getMappedView<T>(metadataMapFn: (metadata: FileMetadata) => T): ReadonlyFileSystemChanges<T>;
}