39 lines
1.7 KiB
JavaScript
39 lines
1.7 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a
|
|
// copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to permit
|
|
// persons to whom the Software is furnished to do so, subject to the
|
|
// following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
|
|
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
|
|
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
|
|
// USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
// a passthrough stream.
|
|
// basically just the most minimal sort of Transform stream.
|
|
// Every written chunk gets output as-is.
|
|
|
|
'use strict'
|
|
|
|
const { ObjectSetPrototypeOf } = require('../../ours/primordials')
|
|
module.exports = PassThrough
|
|
const Transform = require('./transform')
|
|
ObjectSetPrototypeOf(PassThrough.prototype, Transform.prototype)
|
|
ObjectSetPrototypeOf(PassThrough, Transform)
|
|
function PassThrough(options) {
|
|
if (!(this instanceof PassThrough)) return new PassThrough(options)
|
|
Transform.call(this, options)
|
|
}
|
|
PassThrough.prototype._transform = function (chunk, encoding, cb) {
|
|
cb(null, chunk)
|
|
}
|