Function deserializePackageJSON

lib/internal/modules/package_json_reader.js:44–105

* @param {URL['pathname']} path * @param {SerializedPackageConfig} contents * @returns {DeserializedPackageConfig}

(path, contents)

 * @returns {DeserializedPackageConfig}
 */
function deserializePackageJSON(path, contents) {
  if (contents === undefined) {
    return {
      data: {
        __proto__: null,
        type: 'none', // Ignore unknown types for forwards compatibility
      },
      exists: false,
      path,
    };
  }

  const {
    0: name,
    1: main,
    2: type,
    3: plainImports,
    4: plainExports,
    5: optionalFilePath,
  } = contents;

  const pjsonPath = optionalFilePath ?? path;

  const data = {
    __proto__: null,
    ...(name != null && { name }),
    ...(main != null && { main }),
    ...(type != null && { type }),
  };

  if (plainExports !== null) {
    ObjectDefineProperty(data, 'exports', {
      __proto__: null,
      configurable: true,
      enumerable: true,
      get() {
        const value = requiresJSONParse(plainExports) ? JSONParse(plainExports) : plainExports;
        ObjectDefineProperty(data, 'exports', { __proto__: null, enumerable: true, value });
        return value;
      },
    });
  }

  if (plainImports !== null) {
    ObjectDefineProperty(data, 'imports', {
      __proto__: null,
      configurable: true,
      enumerable: true,
      get() {
        const value = requiresJSONParse(plainImports) ? JSONParse(plainImports) : plainImports;
        ObjectDefineProperty(data, 'imports', { __proto__: null, enumerable: true, value });
        return value;
      },
    });
  }

  return {
    data,