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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/metro/src/lib

Просмотр файла: bundleToString.js.flow

/**
 * 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 {Bundle, BundleMetadata} from 'metro-runtime/src/modules/types';

/**
 * Serializes a bundle into a plain JS bundle.
 */
export default function bundleToString(bundle: Bundle): {
  +code: string,
  +metadata: BundleMetadata,
} {
  let code = bundle.pre.length > 0 ? bundle.pre + '\n' : '';
  const modules = [];

  const sortedModules = bundle.modules
    .slice()
    // The order of the modules needs to be deterministic in order for source
    // maps to work properly.
    .sort((a: [number, string], b: [number, string]) => a[0] - b[0]);

  for (const [id, moduleCode] of sortedModules) {
    if (moduleCode.length > 0) {
      code += moduleCode + '\n';
    }
    modules.push([id, moduleCode.length]);
  }

  if (bundle.post.length > 0) {
    code += bundle.post;
  } else {
    code = code.slice(0, -1);
  }

  return {
    code,
    metadata: {pre: bundle.pre.length, post: bundle.post.length, modules},
  };
}

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