lib/_stream_passthrough.js

   1 // a passthrough stream.
   2 // basically just the most minimal sort of Transform stream.
   3 // Every written chunk gets output as-is.
   4
   5 'use strict';
   6
   7 module.exports = PassThrough;
   8
   9 var Transform = require('_stream_transform');
  10 var util = require('util');
  11 util.inherits(PassThrough, Transform);
  12
  13 function PassThrough(options) {
  14   if (!(this instanceof PassThrough))
  15     return new PassThrough(options);
  16
  17   Transform.call(this, options);
  18 }
  19
  20 PassThrough.prototype._transform = function(chunk, encoding, cb) {
  21   cb(null, chunk);
  22 };