TypeScript lodash.transform函數代碼示例

export function disabledAxisMap(h: McuParams): Record<Xyz, boolean> {
  return transform<boolean, Record<Xyz, boolean>>(
    enabledAxisMap(h),
    (d: Record<Xyz, boolean>[], value: boolean, key: Xyz) => {
      d[0][key] = !value;
    }, [{ x: false, y: false, z: false }])[0];
}

const handleV2CoinSpecificREST = function(req, res, next) {
  const method = req.method;
  const bitgo = req.bitgo;

  try {
    const coin = bitgo.coin(req.params.coin);
    const coinURL = coin.url(createAPIPath(req));
    return redirectRequest(bitgo, method, coinURL, req, next);
  } catch (e) {
    if (e instanceof errors.UnsupportedCoinError) {
      const queryParams = _.transform(req.query, (acc, value, key) => {
        for (const val of _.castArray(value)) {
          acc.push(`${key}=${val}`);
        }
      }, []);
      const baseUrl = bitgo.url(req.baseUrl.replace(/^\/api\/v2/, ''), 2);
      const url = _.isEmpty(queryParams) ? baseUrl : `${baseUrl}?${queryParams.join('&')}`;

      debug(`coin ${req.params.coin} not supported, attempting to handle as a coinless route with url ${url}`);
      return redirectRequest(bitgo, method, url, req, next);
    }

    throw e;
  }
};

export function difference (obj: _.Dictionary<any>, base: _.Dictionary<any>) {
  return _.transform(obj, (result, value, key) => {
    if (!_.isEqual(value, base[key])) {
      result[key] = _.isObject(value) && _.isObject(base[key]) ? difference(value, base[key]) : value
    }
  })
}

  /**
   * Server is a gRPC transport provider for serving.
   *
   * @param {Object} config Configuration object.
   * Requires properties:addr,package,proto,service
   * Optional properties: credentials.ssl.certs
   */
  constructor(config: any, logger: any) {
    if (_.isNil(logger)) {
      throw new Error('gRPC server transport provider requires a logger');
    }
    if (!_.has(config, 'addr')) {
      throw new Error('server is missing addr config field');
    }
    if (!_.has(config, 'services')) {
      throw new Error('server is missing services config field');
    }
    this.config = config;
    this.logger = logger;

    // console['error'] = logger.debug;
    // gRPC logger
    grpc.setLogger(console);

    this.server = new grpc.Server();

    // build protobuf
    const protoRoot = config.protoRoot || path.join(process.cwd(), 'protos');
    if (_.isNil(protoRoot) || _.size(protoRoot) === 0) {
      throw new Error('config value protoRoot is not set');
    }
    const protos = config.protos;
    if (_.isNil(protos) || _.size(protos) === 0) {
      throw new Error('config value protos is not set');
    }
    this.logger.verbose(`gRPC Server loading protobuf files from root ${protoRoot}`,  { protos });


    const proto = [];
    for (let i = 0; i < protos.length; i++) {
      const filePath = { root: protoRoot, file: protos[i] };
      this.proto = grpc.load(filePath, 'proto', {
        longsAsStrings: false
      });
      proto[i] = this.proto;
    }

    let k = 0;
    this.service = _.transform(this.config.services, (service: any, protobufServiceName: string, serviceName: string) => {
      const serviceDef = _.get(proto[k], protobufServiceName);
      if (_.isNil(serviceDef)) {
        throw new Error(`Could not find ${protobufServiceName} protobuf service`);
      }
      _.set(service, serviceName, serviceDef.service);
      k++;
      logger.verbose('gRPC service loaded', serviceName);
    });
    this.name = NAME;
  }

export function flattenObject(obj: any) {
  return _.transform(obj, function (result, value, key) {
    if (_.isObject(value) && !_.isArray(value)) {
      const flatMap = _.mapKeys(flattenObject(value), (_mvalue, mkey) => {
        return `${key}.${mkey}`;
      });
      _.assign(result, flatMap);
    } else {
      result[key] = value;
    }

    return result;
  }, {});
}

    const checkPrivilegesAtResources = async (
      resources: string[],
      privilegeOrPrivileges: string | string[]
    ): Promise<CheckPrivilegesAtResourcesResponse> => {
      const privileges = Array.isArray(privilegeOrPrivileges)
        ? privilegeOrPrivileges
        : [privilegeOrPrivileges];
      const allApplicationPrivileges = uniq([actions.version, actions.login, ...privileges]);

      const hasPrivilegesResponse: HasPrivilegesResponse = await callWithRequest(
        request,
        'shield.hasPrivileges',
        {
          body: {
            applications: [
              {
                application,
                resources,
                privileges: allApplicationPrivileges,
              },
            ],
          },
        }
      );

      validateEsPrivilegeResponse(
        hasPrivilegesResponse,
        application,
        allApplicationPrivileges,
        resources
      );

      const applicationPrivilegesResponse = hasPrivilegesResponse.application[application];

      if (hasIncompatibileVersion(applicationPrivilegesResponse)) {
        throw new Error(
          'Multiple versions of Kibana are running against the same Elasticsearch cluster, unable to authorize user.'
        );
      }

      return {
        hasAllRequested: hasPrivilegesResponse.has_all_requested,
        username: hasPrivilegesResponse.username,
        // we need to filter out the non requested privileges from the response
        resourcePrivileges: transform(applicationPrivilegesResponse, (result, value, key) => {
          result[key!] = pick(value, privileges);
        }),
      };
    };

export function convert(obj) {
    return _.transform(obj, function (result, value, key) {
        if (_.isObject(value)) {
            let flatMap = _.mapKeys(convert(value), function (mvalue, mkey) {
                if (_.isArray(value)) {
                    let index = mkey.indexOf('.');
                    if (-1 !== index) {
                        return `${key}[${mkey.slice(0, index)}]${mkey.slice(index)}`;
                    }
                    return `${key}[${mkey}]`;
                }
                return `${key}.${mkey}`;
            });

            _.assign(result, flatMap);
        } else {
            result[key] = value;
        }

        return result;
    }, {});
}

  return function checkPrivilegesWithRequest(request: Record<string, any>): CheckPrivileges {
    const checkPrivilegesAtResources = async (
      resources: string[],
      privilegeOrPrivileges: string | string[]
    ): Promise<CheckPrivilegesAtResourcesResponse> => {
      const privileges = Array.isArray(privilegeOrPrivileges)
        ? privilegeOrPrivileges
        : [privilegeOrPrivileges];
      const allApplicationPrivileges = uniq([actions.version, actions.login, ...privileges]);

      const hasPrivilegesResponse: HasPrivilegesResponse = await callWithRequest(
        request,
        'shield.hasPrivileges',
        {
          body: {
            applications: [
              {
                application,
                resources,
                privileges: allApplicationPrivileges,
              },
            ],
          },
        }
      );

      validateEsPrivilegeResponse(
        hasPrivilegesResponse,
        application,
        allApplicationPrivileges,
        resources
      );

      const applicationPrivilegesResponse = hasPrivilegesResponse.application[application];

      if (hasIncompatibileVersion(applicationPrivilegesResponse)) {
        throw new Error(
          'Multiple versions of Kibana are running against the same Elasticsearch cluster, unable to authorize user.'
        );
      }

      return {
        hasAllRequested: hasPrivilegesResponse.has_all_requested,
        username: hasPrivilegesResponse.username,
        // we need to filter out the non requested privileges from the response
        resourcePrivileges: transform(applicationPrivilegesResponse, (result, value, key) => {
          result[key!] = pick(value, privileges);
        }),
      };
    };

    const checkPrivilegesAtResource = async (
      resource: string,
      privilegeOrPrivileges: string | string[]
    ) => {
      const { hasAllRequested, username, resourcePrivileges } = await checkPrivilegesAtResources(
        [resource],
        privilegeOrPrivileges
      );
      return {
        hasAllRequested,
        username,
        privileges: resourcePrivileges[resource],
      };
    };

    return {
      async atSpace(spaceId: string, privilegeOrPrivileges: string | string[]) {
        const spaceResource = ResourceSerializer.serializeSpaceResource(spaceId);
        return await checkPrivilegesAtResource(spaceResource, privilegeOrPrivileges);
      },
      async atSpaces(spaceIds: string[], privilegeOrPrivileges: string | string[]) {
        const spaceResources = spaceIds.map(spaceId =>
          ResourceSerializer.serializeSpaceResource(spaceId)
        );
        const { hasAllRequested, username, resourcePrivileges } = await checkPrivilegesAtResources(
          spaceResources,
          privilegeOrPrivileges
        );
        return {
          hasAllRequested,
          username,
          // we need to turn the resource responses back into the space ids
          spacePrivileges: transform(resourcePrivileges, (result, value, key) => {
            result[ResourceSerializer.deserializeSpaceResource(key!)] = value;
          }),
        };
      },
      async globally(privilegeOrPrivileges: string | string[]) {
        return await checkPrivilegesAtResource(GLOBAL_RESOURCE, privilegeOrPrivileges);
      },
    };
  };

export function extractSymbols(
  element: any,
  document: string,
  documentLines: string[],
  symbolsType: RefractSymbolMap[],
): SymbolInformation[] {

  const queryResults = query(element, symbolsType);

  return lodash.transform(queryResults, (result, queryResult) => {

    /*
      WARNING: This might be your reaction when you'll look into this code: 😱
      Thing is there is no really source map here and I do not want to solve this
      thing in this release. The long term idea would be to wait till the underlying
      parser will be updated to generate sourcemaps on generated content as well
      and everybody will be happy; till that moment, please bear with me.
    */

    let sourceMap;
    ['meta.title.attributes.sourceMap',
      'attributes.href.attributes.sourceMap',
      (qs) => query(qs, [{ query: { attributes: { method: {} } }, symbolKind: 0 }]),
    ].some((path: string | Function): boolean => {
      if (typeof (path) === 'function') {
        sourceMap = lodash.get((path as Function)(queryResult)[0], 'attributes.method.attributes.sourceMap');
        return true;
      } else {
        if (lodash.has(queryResult, path)) {
          sourceMap = lodash.get(queryResult, path);
          return true;
        }
      }
    });

    const lineReference = createLineReferenceFromSourceMap(
      sourceMap,
      document,
      documentLines,
    );

    let description = '';

    ['meta.title.content',
      'attributes.href.content',
      (qs) => query(qs, [{ query: { attributes: { method: {} } }, symbolKind: 0 }]),
    ].some((path: string | Function): boolean => {
      if (typeof (path) === 'function') {
        description = decodeURI(lodash.get((path as Function)(queryResult)[0], 'attributes.method.content'));
        return true;
      } else {
        if (lodash.has(queryResult, path)) {
          description = decodeURI(lodash.get(queryResult, path));
          return true;
        }
      }

    });

    if (!lodash.isEmpty(lineReference)) {
      result.push(SymbolInformation.create(
        description,
        queryResult.symbolKind,
        Range.create(
          lineReference.startRow,
          lineReference.startIndex,
          lineReference.endRow,
          lineReference.endIndex,
        ),
        null,
        queryResult.container));

    }

  });

}

 (sentence_answers, sentence_answer, sentence_num) => sentence_answers[sentence_num] = _.transform(sentence_answer,
     (word_answers, word_answer, word_index) => word_answers[word_index] = {
         word: word_answer.word,
         valid: state.sentences[sentence_num].words[+word_index] === word_answer.word
     }
 )