/**
 * 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.
 *
 * @flow strict-local
 * @format
 * @oncall react_native
 */

import type { CustomResolver } from "metro-resolver";

/**
 * This is an implementation of a metro resolveRequest option which will remap react-native imports
 * to different npm packages based on the platform requested.  This allows a single metro instance/config
 * to produce bundles for multiple out of tree platforms at a time.
 *
 * @param platformImplementations
 * A map of platform to npm package that implements that platform
 *
 * Ex:
 * {
 *    windows: 'react-native-windows'
 *    macos: 'react-native-macos'
 * }
 */
declare export function reactNativePlatformResolver(
  platformImplementations: {
    [platform: string]: string,
  },
  customResolver: ?CustomResolver
): CustomResolver;