registry.ts

/**
 * Copyright (c) Facebook, Inc. and its 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
 * @format
 */

'use strict';

export type PackagerAsset = {
  __packager_asset: boolean,
  fileSystemLocation: string,
  httpServerLocation: string,
  width?: number,
  height?: number,
  scales: Array<number>,
  hash: string,
  name: string,
  type: string,
};

const assets: Array<PackagerAsset> = [];

export function registerAsset(asset: PackagerAsset): number {
  // `push` returns new array length, so the first asset will
  // get id 1 (not 0) to make the value truthy
  return assets.push(asset);
}

export function getAssetByID(assetId: number): PackagerAsset {
  return assets[assetId - 1];
}