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Move all the streams constructors to internal/streams and avoid a circular dependencies between the modules. See: nodejs/readable-stream#348
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,108 +1,6 @@ | ||
| // 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 prototype inheritance, this class | ||
| // prototypically inherits from Readable, and then parasitically from | ||
| // Writable. | ||
|
|
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| 'use strict'; | ||
|
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| const { | ||
| ObjectDefineProperties, | ||
| ObjectGetOwnPropertyDescriptor, | ||
| ObjectKeys, | ||
| ObjectSetPrototypeOf, | ||
| } = primordials; | ||
| // TODO(mcollina): deprecate this file | ||
|
|
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| const Duplex = require('internal/streams/duplex'); | ||
| module.exports = Duplex; | ||
|
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| const Readable = require('_stream_readable'); | ||
| const Writable = require('_stream_writable'); | ||
|
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| ObjectSetPrototypeOf(Duplex.prototype, Readable.prototype); | ||
| ObjectSetPrototypeOf(Duplex, Readable); | ||
|
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| { | ||
| // Allow the keys array to be GC'ed. | ||
| for (const method of ObjectKeys(Writable.prototype)) { | ||
| if (!Duplex.prototype[method]) | ||
| Duplex.prototype[method] = Writable.prototype[method]; | ||
| } | ||
| } | ||
|
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| function Duplex(options) { | ||
| if (!(this instanceof Duplex)) | ||
| return new Duplex(options); | ||
|
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| Readable.call(this, options); | ||
| Writable.call(this, options); | ||
| this.allowHalfOpen = true; | ||
|
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| if (options) { | ||
| if (options.readable === false) | ||
| this.readable = false; | ||
|
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| if (options.writable === false) | ||
| this.writable = false; | ||
|
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| if (options.allowHalfOpen === false) { | ||
| this.allowHalfOpen = false; | ||
| } | ||
| } | ||
| } | ||
|
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| ObjectDefineProperties(Duplex.prototype, { | ||
| writable: | ||
| ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writable'), | ||
| writableHighWaterMark: | ||
| ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableHighWaterMark'), | ||
| writableObjectMode: | ||
| ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableObjectMode'), | ||
| writableBuffer: | ||
| ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableBuffer'), | ||
| writableLength: | ||
| ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableLength'), | ||
| writableFinished: | ||
| ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableFinished'), | ||
| writableCorked: | ||
| ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableCorked'), | ||
| writableEnded: | ||
| ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableEnded'), | ||
|
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| destroyed: { | ||
| get() { | ||
| if (this._readableState === undefined || | ||
| this._writableState === undefined) { | ||
| return false; | ||
| } | ||
| return this._readableState.destroyed && this._writableState.destroyed; | ||
| }, | ||
| set(value) { | ||
| // Backward compatibility, the user is explicitly | ||
| // managing destroyed. | ||
| if (this._readableState && this._writableState) { | ||
| this._readableState.destroyed = value; | ||
| this._writableState.destroyed = value; | ||
| } | ||
| } | ||
| } | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,47 +1,6 @@ | ||
| // 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. | ||
|
|
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| // a passthrough stream. | ||
| // basically just the most minimal sort of Transform stream. | ||
| // Every written chunk gets output as-is. | ||
|
|
||
| 'use strict'; | ||
|
|
||
| const { | ||
| ObjectSetPrototypeOf, | ||
| } = primordials; | ||
| // TODO(mcollina): deprecate this file | ||
|
|
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| const PassThrough = require('internal/streams/passthrough'); | ||
| module.exports = PassThrough; | ||
|
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| const Transform = require('_stream_transform'); | ||
| ObjectSetPrototypeOf(PassThrough.prototype, Transform.prototype); | ||
| ObjectSetPrototypeOf(PassThrough, Transform); | ||
|
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| function PassThrough(options) { | ||
| if (!(this instanceof PassThrough)) | ||
| return new PassThrough(options); | ||
|
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| Transform.call(this, options); | ||
| } | ||
|
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| PassThrough.prototype._transform = function(chunk, encoding, cb) { | ||
| cb(null, chunk); | ||
| }; |
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