{“ast”:null,“code”:“'use strict';nnvar GenericWorker = require('./GenericWorker');nnvar crc32 = require('../crc32');nnvar utils = require('../utils');n/**n * A worker which calculate the crc32 of the data flowing through.n * @constructorn */nnnfunction Crc32Probe() {n GenericWorker.call(this, "Crc32Probe");n this.withStreamInfo("crc32", 0);n}nnutils.inherits(Crc32Probe, GenericWorker);n/**n * @see GenericWorker.processChunkn */nnCrc32Probe.prototype.processChunk = function (chunk) {n this.streamInfo.crc32 = crc32(chunk.data, this.streamInfo.crc32 || 0);n this.push(chunk);n};nnmodule.exports = Crc32Probe;”,“map”:null,“metadata”:{},“sourceType”:“module”}