diff options
Diffstat (limited to 'deps/npm/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_duplex.js')
-rw-r--r-- | deps/npm/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_duplex.js | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/deps/npm/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_duplex.js b/deps/npm/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_duplex.js deleted file mode 100644 index a1ca813e5a..0000000000 --- a/deps/npm/node_modules/concat-stream/node_modules/readable-stream/lib/_stream_duplex.js +++ /dev/null @@ -1,131 +0,0 @@ -// 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. - -'use strict'; - -/*<replacement>*/ - -var pna = require('process-nextick-args'); -/*</replacement>*/ - -/*<replacement>*/ -var objectKeys = Object.keys || function (obj) { - var keys = []; - for (var key in obj) { - keys.push(key); - }return keys; -}; -/*</replacement>*/ - -module.exports = Duplex; - -/*<replacement>*/ -var util = require('core-util-is'); -util.inherits = require('inherits'); -/*</replacement>*/ - -var Readable = require('./_stream_readable'); -var Writable = require('./_stream_writable'); - -util.inherits(Duplex, Readable); - -{ - // avoid scope creep, the keys array can then be collected - 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); - - Readable.call(this, options); - Writable.call(this, options); - - if (options && options.readable === false) this.readable = false; - - if (options && options.writable === false) this.writable = false; - - this.allowHalfOpen = true; - if (options && options.allowHalfOpen === false) this.allowHalfOpen = false; - - this.once('end', onend); -} - -Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', { - // making it explicit this property is not enumerable - // because otherwise some prototype manipulation in - // userland will fail - enumerable: false, - get: function () { - return this._writableState.highWaterMark; - } -}); - -// the no-half-open enforcer -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; - - // no more data can be written. - // But allow more writes to happen in this tick. - pna.nextTick(onEndNT, this); -} - -function onEndNT(self) { - self.end(); -} - -Object.defineProperty(Duplex.prototype, 'destroyed', { - get: function () { - if (this._readableState === undefined || this._writableState === undefined) { - return false; - } - return this._readableState.destroyed && this._writableState.destroyed; - }, - set: function (value) { - // we ignore the value if the stream - // has not been initialized yet - if (this._readableState === undefined || this._writableState === undefined) { - return; - } - - // backward compatibility, the user is explicitly - // managing destroyed - this._readableState.destroyed = value; - this._writableState.destroyed = value; - } -}); - -Duplex.prototype._destroy = function (err, cb) { - this.push(null); - this.end(); - - pna.nextTick(cb, err); -};
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