diff options
Diffstat (limited to 'node_modules/readable-stream/lib/_stream_duplex.js')
-rw-r--r-- | node_modules/readable-stream/lib/_stream_duplex.js | 70 |
1 files changed, 28 insertions, 42 deletions
diff --git a/node_modules/readable-stream/lib/_stream_duplex.js b/node_modules/readable-stream/lib/_stream_duplex.js index b513d61a9..736693b84 100644 --- a/node_modules/readable-stream/lib/_stream_duplex.js +++ b/node_modules/readable-stream/lib/_stream_duplex.js @@ -1,39 +1,25 @@ -// 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 duplex stream is just a stream that is both readable and writable. // Since JS doesn't have multiple prototypal inheritance, this class // prototypally inherits from Readable, and then parasitically from // Writable. -module.exports = Duplex; +'use strict'; /*<replacement>*/ + var objectKeys = Object.keys || function (obj) { var keys = []; - for (var key in obj) keys.push(key); - return keys; -} + for (var key in obj) { + keys.push(key); + }return keys; +}; /*</replacement>*/ +module.exports = Duplex; + +/*<replacement>*/ +var processNextTick = require('process-nextick-args'); +/*</replacement>*/ /*<replacement>*/ var util = require('core-util-is'); @@ -45,27 +31,24 @@ var Writable = require('./_stream_writable'); util.inherits(Duplex, Readable); -forEach(objectKeys(Writable.prototype), function(method) { - if (!Duplex.prototype[method]) - Duplex.prototype[method] = Writable.prototype[method]; -}); +var keys = objectKeys(Writable.prototype); +for (var v = 0; v < keys.length; v++) { + var method = keys[v]; + if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method]; +} function Duplex(options) { - if (!(this instanceof Duplex)) - return new Duplex(options); + if (!(this instanceof Duplex)) return new Duplex(options); Readable.call(this, options); Writable.call(this, options); - if (options && options.readable === false) - this.readable = false; + if (options && options.readable === false) this.readable = false; - if (options && options.writable === false) - this.writable = false; + if (options && options.writable === false) this.writable = false; this.allowHalfOpen = true; - if (options && options.allowHalfOpen === false) - this.allowHalfOpen = false; + if (options && options.allowHalfOpen === false) this.allowHalfOpen = false; this.once('end', onend); } @@ -74,16 +57,19 @@ function Duplex(options) { function onend() { // if we allow half-open state, or if the writable side ended, // then we're ok. - if (this.allowHalfOpen || this._writableState.ended) - return; + if (this.allowHalfOpen || this._writableState.ended) return; // no more data can be written. // But allow more writes to happen in this tick. - process.nextTick(this.end.bind(this)); + processNextTick(onEndNT, this); } -function forEach (xs, f) { +function onEndNT(self) { + self.end(); +} + +function forEach(xs, f) { for (var i = 0, l = xs.length; i < l; i++) { f(xs[i], i); } -} +}
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