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node_modules/duplexify/.npmignore generated vendored Normal file
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node_modules

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node_modules/duplexify/.travis.yml generated vendored Normal file
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language: node_js
node_js:
- "0.10"
- "0.12"
- "4"
- "6"

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The MIT License (MIT)
Copyright (c) 2014 Mathias Buus
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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# duplexify
Turn a writeable and readable stream into a single streams2 duplex stream.
Similar to [duplexer2](https://github.com/deoxxa/duplexer2) except it supports both streams2 and streams1 as input
and it allows you to set the readable and writable part asynchronously using `setReadable(stream)` and `setWritable(stream)`
```
npm install duplexify
```
[![build status](http://img.shields.io/travis/mafintosh/duplexify.svg?style=flat)](http://travis-ci.org/mafintosh/duplexify)
## Usage
Use `duplexify(writable, readable, streamOptions)` (or `duplexify.obj(writable, readable)` to create an object stream)
``` js
var duplexify = require('duplexify')
// turn writableStream and readableStream into a single duplex stream
var dup = duplexify(writableStream, readableStream)
dup.write('hello world') // will write to writableStream
dup.on('data', function(data) {
// will read from readableStream
})
```
You can also set the readable and writable parts asynchronously
``` js
var dup = duplexify()
dup.write('hello world') // write will buffer until the writable
// part has been set
// wait a bit ...
dup.setReadable(readableStream)
// maybe wait some more?
dup.setWritable(writableStream)
```
If you call `setReadable` or `setWritable` multiple times it will unregister the previous readable/writable stream.
To disable the readable or writable part call `setReadable` or `setWritable` with `null`.
If the readable or writable streams emits an error or close it will destroy both streams and bubble up the event.
You can also explictly destroy the streams by calling `dup.destroy()`. The `destroy` method optionally takes an
error object as argument, in which case the error is emitted as part of the `error` event.
``` js
dup.on('error', function(err) {
console.log('readable or writable emitted an error - close will follow')
})
dup.on('close', function() {
console.log('the duplex stream is destroyed')
})
dup.destroy() // calls destroy on the readable and writable part (if present)
```
## HTTP request example
Turn a node core http request into a duplex stream is as easy as
``` js
var duplexify = require('duplexify')
var http = require('http')
var request = function(opts) {
var req = http.request(opts)
var dup = duplexify(req)
req.on('response', function(res) {
dup.setReadable(res)
})
return dup
}
var req = request({
method: 'GET',
host: 'www.google.com',
port: 80
})
req.end()
req.pipe(process.stdout)
```
## License
MIT
## Related
`duplexify` is part of the [mississippi stream utility collection](https://github.com/maxogden/mississippi) which includes more useful stream modules similar to this one.

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var duplexify = require('duplexify')
var http = require('http')
var request = function(opts) {
var req = http.request(opts)
var dup = duplexify()
dup.setWritable(req)
req.on('response', function(res) {
dup.setReadable(res)
})
return dup
}
var req = request({
method: 'GET',
host: 'www.google.com',
port: 80
})
req.end()
req.pipe(process.stdout)

228
node_modules/duplexify/index.js generated vendored Normal file
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var stream = require('readable-stream')
var eos = require('end-of-stream')
var inherits = require('inherits')
var shift = require('stream-shift')
var SIGNAL_FLUSH = new Buffer([0])
var onuncork = function(self, fn) {
if (self._corked) self.once('uncork', fn)
else fn()
}
var destroyer = function(self, end) {
return function(err) {
if (err) self.destroy(err.message === 'premature close' ? null : err)
else if (end && !self._ended) self.end()
}
}
var end = function(ws, fn) {
if (!ws) return fn()
if (ws._writableState && ws._writableState.finished) return fn()
if (ws._writableState) return ws.end(fn)
ws.end()
fn()
}
var toStreams2 = function(rs) {
return new (stream.Readable)({objectMode:true, highWaterMark:16}).wrap(rs)
}
var Duplexify = function(writable, readable, opts) {
if (!(this instanceof Duplexify)) return new Duplexify(writable, readable, opts)
stream.Duplex.call(this, opts)
this._writable = null
this._readable = null
this._readable2 = null
this._forwardDestroy = !opts || opts.destroy !== false
this._forwardEnd = !opts || opts.end !== false
this._corked = 1 // start corked
this._ondrain = null
this._drained = false
this._forwarding = false
this._unwrite = null
this._unread = null
this._ended = false
this.destroyed = false
if (writable) this.setWritable(writable)
if (readable) this.setReadable(readable)
}
inherits(Duplexify, stream.Duplex)
Duplexify.obj = function(writable, readable, opts) {
if (!opts) opts = {}
opts.objectMode = true
opts.highWaterMark = 16
return new Duplexify(writable, readable, opts)
}
Duplexify.prototype.cork = function() {
if (++this._corked === 1) this.emit('cork')
}
Duplexify.prototype.uncork = function() {
if (this._corked && --this._corked === 0) this.emit('uncork')
}
Duplexify.prototype.setWritable = function(writable) {
if (this._unwrite) this._unwrite()
if (this.destroyed) {
if (writable && writable.destroy) writable.destroy()
return
}
if (writable === null || writable === false) {
this.end()
return
}
var self = this
var unend = eos(writable, {writable:true, readable:false}, destroyer(this, this._forwardEnd))
var ondrain = function() {
var ondrain = self._ondrain
self._ondrain = null
if (ondrain) ondrain()
}
var clear = function() {
self._writable.removeListener('drain', ondrain)
unend()
}
if (this._unwrite) process.nextTick(ondrain) // force a drain on stream reset to avoid livelocks
this._writable = writable
this._writable.on('drain', ondrain)
this._unwrite = clear
this.uncork() // always uncork setWritable
}
Duplexify.prototype.setReadable = function(readable) {
if (this._unread) this._unread()
if (this.destroyed) {
if (readable && readable.destroy) readable.destroy()
return
}
if (readable === null || readable === false) {
this.push(null)
this.resume()
return
}
var self = this
var unend = eos(readable, {writable:false, readable:true}, destroyer(this))
var onreadable = function() {
self._forward()
}
var onend = function() {
self.push(null)
}
var clear = function() {
self._readable2.removeListener('readable', onreadable)
self._readable2.removeListener('end', onend)
unend()
}
this._drained = true
this._readable = readable
this._readable2 = readable._readableState ? readable : toStreams2(readable)
this._readable2.on('readable', onreadable)
this._readable2.on('end', onend)
this._unread = clear
this._forward()
}
Duplexify.prototype._read = function() {
this._drained = true
this._forward()
}
Duplexify.prototype._forward = function() {
if (this._forwarding || !this._readable2 || !this._drained) return
this._forwarding = true
var data
while (this._drained && (data = shift(this._readable2)) !== null) {
if (this.destroyed) continue
this._drained = this.push(data)
}
this._forwarding = false
}
Duplexify.prototype.destroy = function(err) {
if (this.destroyed) return
this.destroyed = true
var self = this
process.nextTick(function() {
self._destroy(err)
})
}
Duplexify.prototype._destroy = function(err) {
if (err) {
var ondrain = this._ondrain
this._ondrain = null
if (ondrain) ondrain(err)
else this.emit('error', err)
}
if (this._forwardDestroy) {
if (this._readable && this._readable.destroy) this._readable.destroy()
if (this._writable && this._writable.destroy) this._writable.destroy()
}
this.emit('close')
}
Duplexify.prototype._write = function(data, enc, cb) {
if (this.destroyed) return cb()
if (this._corked) return onuncork(this, this._write.bind(this, data, enc, cb))
if (data === SIGNAL_FLUSH) return this._finish(cb)
if (!this._writable) return cb()
if (this._writable.write(data) === false) this._ondrain = cb
else cb()
}
Duplexify.prototype._finish = function(cb) {
var self = this
this.emit('preend')
onuncork(this, function() {
end(self._forwardEnd && self._writable, function() {
// haxx to not emit prefinish twice
if (self._writableState.prefinished === false) self._writableState.prefinished = true
self.emit('prefinish')
onuncork(self, cb)
})
})
}
Duplexify.prototype.end = function(data, enc, cb) {
if (typeof data === 'function') return this.end(null, null, data)
if (typeof enc === 'function') return this.end(data, null, enc)
this._ended = true
if (data) this.write(data)
if (!this._writableState.ending) this.write(SIGNAL_FLUSH)
return stream.Writable.prototype.end.call(this, cb)
}
module.exports = Duplexify

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node_modules

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# end-of-stream
A node module that calls a callback when a readable/writable/duplex stream has completed or failed.
npm install end-of-stream
## Usage
Simply pass a stream and a callback to the `eos`.
Both legacy streams and streams2 are supported.
``` js
var eos = require('end-of-stream');
eos(readableStream, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has ended');
});
eos(writableStream, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has finished');
});
eos(duplexStream, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has ended and finished');
});
eos(duplexStream, {readable:false}, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has ended but might still be writable');
});
eos(duplexStream, {writable:false}, function(err) {
if (err) return console.log('stream had an error or closed early');
console.log('stream has ended but might still be readable');
});
eos(readableStream, {error:false}, function(err) {
// do not treat emit('error', err) as a end-of-stream
});
```
## License
MIT

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var once = require('once');
var noop = function() {};
var isRequest = function(stream) {
return stream.setHeader && typeof stream.abort === 'function';
};
var eos = function(stream, opts, callback) {
if (typeof opts === 'function') return eos(stream, null, opts);
if (!opts) opts = {};
callback = once(callback || noop);
var ws = stream._writableState;
var rs = stream._readableState;
var readable = opts.readable || (opts.readable !== false && stream.readable);
var writable = opts.writable || (opts.writable !== false && stream.writable);
var onlegacyfinish = function() {
if (!stream.writable) onfinish();
};
var onfinish = function() {
writable = false;
if (!readable) callback();
};
var onend = function() {
readable = false;
if (!writable) callback();
};
var onclose = function() {
if (readable && !(rs && rs.ended)) return callback(new Error('premature close'));
if (writable && !(ws && ws.ended)) return callback(new Error('premature close'));
};
var onrequest = function() {
stream.req.on('finish', onfinish);
};
if (isRequest(stream)) {
stream.on('complete', onfinish);
stream.on('abort', onclose);
if (stream.req) onrequest();
else stream.on('request', onrequest);
} else if (writable && !ws) { // legacy streams
stream.on('end', onlegacyfinish);
stream.on('close', onlegacyfinish);
}
stream.on('end', onend);
stream.on('finish', onfinish);
if (opts.error !== false) stream.on('error', callback);
stream.on('close', onclose);
return function() {
stream.removeListener('complete', onfinish);
stream.removeListener('abort', onclose);
stream.removeListener('request', onrequest);
if (stream.req) stream.req.removeListener('finish', onfinish);
stream.removeListener('end', onlegacyfinish);
stream.removeListener('close', onlegacyfinish);
stream.removeListener('finish', onfinish);
stream.removeListener('end', onend);
stream.removeListener('error', callback);
stream.removeListener('close', onclose);
};
};
module.exports = eos;

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{
"_args": [
[
{
"raw": "end-of-stream@1.0.0",
"scope": null,
"escapedName": "end-of-stream",
"name": "end-of-stream",
"rawSpec": "1.0.0",
"spec": "1.0.0",
"type": "version"
},
"D:\\web\\layui\\res\\layui\\node_modules\\duplexify"
]
],
"_from": "end-of-stream@1.0.0",
"_id": "end-of-stream@1.0.0",
"_inCache": true,
"_location": "/duplexify/end-of-stream",
"_npmUser": {
"name": "mafintosh",
"email": "mathiasbuus@gmail.com"
},
"_npmVersion": "1.4.9",
"_phantomChildren": {},
"_requested": {
"raw": "end-of-stream@1.0.0",
"scope": null,
"escapedName": "end-of-stream",
"name": "end-of-stream",
"rawSpec": "1.0.0",
"spec": "1.0.0",
"type": "version"
},
"_requiredBy": [
"/duplexify"
],
"_resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.0.0.tgz",
"_shasum": "d4596e702734a93e40e9af864319eabd99ff2f0e",
"_shrinkwrap": null,
"_spec": "end-of-stream@1.0.0",
"_where": "D:\\web\\layui\\res\\layui\\node_modules\\duplexify",
"author": {
"name": "Mathias Buus",
"email": "mathiasbuus@gmail.com"
},
"bugs": {
"url": "https://github.com/mafintosh/end-of-stream/issues"
},
"dependencies": {
"once": "~1.3.0"
},
"description": "Call a callback when a readable/writable/duplex stream has completed or failed.",
"devDependencies": {},
"directories": {},
"dist": {
"shasum": "d4596e702734a93e40e9af864319eabd99ff2f0e",
"tarball": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.0.0.tgz"
},
"homepage": "https://github.com/mafintosh/end-of-stream",
"keywords": [
"stream",
"streams",
"callback",
"finish",
"close",
"end",
"wait"
],
"license": "MIT",
"main": "index.js",
"maintainers": [
{
"name": "mafintosh",
"email": "mathiasbuus@gmail.com"
}
],
"name": "end-of-stream",
"optionalDependencies": {},
"readme": "ERROR: No README data found!",
"repository": {
"type": "git",
"url": "git://github.com/mafintosh/end-of-stream.git"
},
"scripts": {
"test": "node test.js"
},
"version": "1.0.0"
}

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var assert = require('assert');
var eos = require('./index');
var expected = 6;
var fs = require('fs');
var net = require('net');
var ws = fs.createWriteStream('/dev/null');
eos(ws, function(err) {
expected--;
assert(!!err);
if (!expected) process.exit(0);
});
ws.close();
var rs = fs.createReadStream('/dev/random');
eos(rs, function(err) {
expected--;
assert(!!err);
if (!expected) process.exit(0);
});
rs.close();
var rs = fs.createReadStream(__filename);
eos(rs, function(err) {
expected--;
assert(!err);
if (!expected) process.exit(0);
});
rs.pipe(fs.createWriteStream('/dev/null'));
var rs = fs.createReadStream(__filename);
eos(rs, function(err) {
throw new Error('no go')
})();
rs.pipe(fs.createWriteStream('/dev/null'));
var socket = net.connect(50000);
eos(socket, function(err) {
expected--;
assert(!!err);
if (!expected) process.exit(0);
});
var server = net.createServer(function(socket) {
eos(socket, function() {
expected--;
if (!expected) process.exit(0);
});
socket.destroy();
}).listen(30000, function() {
var socket = net.connect(30000);
eos(socket, function() {
expected--;
if (!expected) process.exit(0);
});
});
setTimeout(function() {
assert(expected === 0);
process.exit(0);
}, 1000);

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node_modules/duplexify/node_modules/isarray/.npmignore generated vendored Normal file
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node_modules

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language: node_js
node_js:
- "0.8"
- "0.10"

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test:
@node_modules/.bin/tape test.js
.PHONY: test

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# isarray
`Array#isArray` for older browsers.
[![build status](https://secure.travis-ci.org/juliangruber/isarray.svg)](http://travis-ci.org/juliangruber/isarray)
[![downloads](https://img.shields.io/npm/dm/isarray.svg)](https://www.npmjs.org/package/isarray)
[![browser support](https://ci.testling.com/juliangruber/isarray.png)
](https://ci.testling.com/juliangruber/isarray)
## Usage
```js
var isArray = require('isarray');
console.log(isArray([])); // => true
console.log(isArray({})); // => false
```
## Installation
With [npm](http://npmjs.org) do
```bash
$ npm install isarray
```
Then bundle for the browser with
[browserify](https://github.com/substack/browserify).
With [component](http://component.io) do
```bash
$ component install juliangruber/isarray
```
## License
(MIT)
Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
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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{
"name" : "isarray",
"description" : "Array#isArray for older browsers",
"version" : "0.0.1",
"repository" : "juliangruber/isarray",
"homepage": "https://github.com/juliangruber/isarray",
"main" : "index.js",
"scripts" : [
"index.js"
],
"dependencies" : {},
"keywords": ["browser","isarray","array"],
"author": {
"name": "Julian Gruber",
"email": "mail@juliangruber.com",
"url": "http://juliangruber.com"
},
"license": "MIT"
}

5
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var toString = {}.toString;
module.exports = Array.isArray || function (arr) {
return toString.call(arr) == '[object Array]';
};

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{
"_args": [
[
{
"raw": "isarray@~1.0.0",
"scope": null,
"escapedName": "isarray",
"name": "isarray",
"rawSpec": "~1.0.0",
"spec": ">=1.0.0 <1.1.0",
"type": "range"
},
"D:\\web\\layui\\res\\layui\\node_modules\\duplexify\\node_modules\\readable-stream"
]
],
"_from": "isarray@>=1.0.0 <1.1.0",
"_id": "isarray@1.0.0",
"_inCache": true,
"_location": "/duplexify/isarray",
"_nodeVersion": "5.1.0",
"_npmUser": {
"name": "juliangruber",
"email": "julian@juliangruber.com"
},
"_npmVersion": "3.3.12",
"_phantomChildren": {},
"_requested": {
"raw": "isarray@~1.0.0",
"scope": null,
"escapedName": "isarray",
"name": "isarray",
"rawSpec": "~1.0.0",
"spec": ">=1.0.0 <1.1.0",
"type": "range"
},
"_requiredBy": [
"/duplexify/readable-stream"
],
"_resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
"_shasum": "bb935d48582cba168c06834957a54a3e07124f11",
"_shrinkwrap": null,
"_spec": "isarray@~1.0.0",
"_where": "D:\\web\\layui\\res\\layui\\node_modules\\duplexify\\node_modules\\readable-stream",
"author": {
"name": "Julian Gruber",
"email": "mail@juliangruber.com",
"url": "http://juliangruber.com"
},
"bugs": {
"url": "https://github.com/juliangruber/isarray/issues"
},
"dependencies": {},
"description": "Array#isArray for older browsers",
"devDependencies": {
"tape": "~2.13.4"
},
"directories": {},
"dist": {
"shasum": "bb935d48582cba168c06834957a54a3e07124f11",
"tarball": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz"
},
"gitHead": "2a23a281f369e9ae06394c0fb4d2381355a6ba33",
"homepage": "https://github.com/juliangruber/isarray",
"keywords": [
"browser",
"isarray",
"array"
],
"license": "MIT",
"main": "index.js",
"maintainers": [
{
"name": "juliangruber",
"email": "julian@juliangruber.com"
}
],
"name": "isarray",
"optionalDependencies": {},
"readme": "ERROR: No README data found!",
"repository": {
"type": "git",
"url": "git://github.com/juliangruber/isarray.git"
},
"scripts": {
"test": "tape test.js"
},
"testling": {
"files": "test.js",
"browsers": [
"ie/8..latest",
"firefox/17..latest",
"firefox/nightly",
"chrome/22..latest",
"chrome/canary",
"opera/12..latest",
"opera/next",
"safari/5.1..latest",
"ipad/6.0..latest",
"iphone/6.0..latest",
"android-browser/4.2..latest"
]
},
"version": "1.0.0"
}

20
node_modules/duplexify/node_modules/isarray/test.js generated vendored Normal file
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@@ -0,0 +1,20 @@
var isArray = require('./');
var test = require('tape');
test('is array', function(t){
t.ok(isArray([]));
t.notOk(isArray({}));
t.notOk(isArray(null));
t.notOk(isArray(false));
var obj = {};
obj[0] = true;
t.notOk(isArray(obj));
var arr = [];
arr.foo = 'bar';
t.ok(isArray(arr));
t.end();
});

15
node_modules/duplexify/node_modules/once/LICENSE generated vendored Normal file
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@@ -0,0 +1,15 @@
The ISC License
Copyright (c) Isaac Z. Schlueter and Contributors
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

51
node_modules/duplexify/node_modules/once/README.md generated vendored Normal file
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@@ -0,0 +1,51 @@
# once
Only call a function once.
## usage
```javascript
var once = require('once')
function load (file, cb) {
cb = once(cb)
loader.load('file')
loader.once('load', cb)
loader.once('error', cb)
}
```
Or add to the Function.prototype in a responsible way:
```javascript
// only has to be done once
require('once').proto()
function load (file, cb) {
cb = cb.once()
loader.load('file')
loader.once('load', cb)
loader.once('error', cb)
}
```
Ironically, the prototype feature makes this module twice as
complicated as necessary.
To check whether you function has been called, use `fn.called`. Once the
function is called for the first time the return value of the original
function is saved in `fn.value` and subsequent calls will continue to
return this value.
```javascript
var once = require('once')
function load (cb) {
cb = once(cb)
var stream = createStream()
stream.once('data', cb)
stream.once('end', function () {
if (!cb.called) cb(new Error('not found'))
})
}
```

21
node_modules/duplexify/node_modules/once/once.js generated vendored Normal file
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@@ -0,0 +1,21 @@
var wrappy = require('wrappy')
module.exports = wrappy(once)
once.proto = once(function () {
Object.defineProperty(Function.prototype, 'once', {
value: function () {
return once(this)
},
configurable: true
})
})
function once (fn) {
var f = function () {
if (f.called) return f.value
f.called = true
return f.value = fn.apply(this, arguments)
}
f.called = false
return f
}

96
node_modules/duplexify/node_modules/once/package.json generated vendored Normal file
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@@ -0,0 +1,96 @@
{
"_args": [
[
{
"raw": "once@~1.3.0",
"scope": null,
"escapedName": "once",
"name": "once",
"rawSpec": "~1.3.0",
"spec": ">=1.3.0 <1.4.0",
"type": "range"
},
"D:\\web\\layui\\res\\layui\\node_modules\\duplexify\\node_modules\\end-of-stream"
]
],
"_from": "once@>=1.3.0 <1.4.0",
"_id": "once@1.3.3",
"_inCache": true,
"_location": "/duplexify/once",
"_nodeVersion": "4.0.0",
"_npmUser": {
"name": "isaacs",
"email": "i@izs.me"
},
"_npmVersion": "3.3.2",
"_phantomChildren": {},
"_requested": {
"raw": "once@~1.3.0",
"scope": null,
"escapedName": "once",
"name": "once",
"rawSpec": "~1.3.0",
"spec": ">=1.3.0 <1.4.0",
"type": "range"
},
"_requiredBy": [
"/duplexify/end-of-stream"
],
"_resolved": "https://registry.npmjs.org/once/-/once-1.3.3.tgz",
"_shasum": "b2e261557ce4c314ec8304f3fa82663e4297ca20",
"_shrinkwrap": null,
"_spec": "once@~1.3.0",
"_where": "D:\\web\\layui\\res\\layui\\node_modules\\duplexify\\node_modules\\end-of-stream",
"author": {
"name": "Isaac Z. Schlueter",
"email": "i@izs.me",
"url": "http://blog.izs.me/"
},
"bugs": {
"url": "https://github.com/isaacs/once/issues"
},
"dependencies": {
"wrappy": "1"
},
"description": "Run a function exactly one time",
"devDependencies": {
"tap": "^1.2.0"
},
"directories": {
"test": "test"
},
"dist": {
"shasum": "b2e261557ce4c314ec8304f3fa82663e4297ca20",
"tarball": "https://registry.npmjs.org/once/-/once-1.3.3.tgz"
},
"files": [
"once.js"
],
"gitHead": "2ad558657e17fafd24803217ba854762842e4178",
"homepage": "https://github.com/isaacs/once#readme",
"keywords": [
"once",
"function",
"one",
"single"
],
"license": "ISC",
"main": "once.js",
"maintainers": [
{
"name": "isaacs",
"email": "i@izs.me"
}
],
"name": "once",
"optionalDependencies": {},
"readme": "ERROR: No README data found!",
"repository": {
"type": "git",
"url": "git://github.com/isaacs/once.git"
},
"scripts": {
"test": "tap test/*.js"
},
"version": "1.3.3"
}

9
node_modules/duplexify/node_modules/readable-stream/.npmignore generated vendored Normal file
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@@ -0,0 +1,9 @@
build/
test/
examples/
fs.js
zlib.js
.zuul.yml
.nyc_output
coverage
docs/

49
node_modules/duplexify/node_modules/readable-stream/.travis.yml generated vendored Normal file
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@@ -0,0 +1,49 @@
sudo: false
language: node_js
before_install:
- npm install -g npm@2
- npm install -g npm
notifications:
email: false
matrix:
fast_finish: true
include:
- node_js: '0.8'
env: TASK=test
- node_js: '0.10'
env: TASK=test
- node_js: '0.11'
env: TASK=test
- node_js: '0.12'
env: TASK=test
- node_js: 1
env: TASK=test
- node_js: 2
env: TASK=test
- node_js: 3
env: TASK=test
- node_js: 4
env: TASK=test
- node_js: 5
env: TASK=test
- node_js: 6
env: TASK=test
- node_js: 5
env: TASK=browser BROWSER_NAME=android BROWSER_VERSION="4.0..latest"
- node_js: 5
env: TASK=browser BROWSER_NAME=ie BROWSER_VERSION="9..latest"
- node_js: 5
env: TASK=browser BROWSER_NAME=opera BROWSER_VERSION="11..latest"
- node_js: 5
env: TASK=browser BROWSER_NAME=chrome BROWSER_VERSION="-3..latest"
- node_js: 5
env: TASK=browser BROWSER_NAME=firefox BROWSER_VERSION="-3..latest"
- node_js: 5
env: TASK=browser BROWSER_NAME=safari BROWSER_VERSION="5..latest"
- node_js: 5
env: TASK=browser BROWSER_NAME=microsoftedge BROWSER_VERSION=latest
script: "npm run $TASK"
env:
global:
- secure: rE2Vvo7vnjabYNULNyLFxOyt98BoJexDqsiOnfiD6kLYYsiQGfr/sbZkPMOFm9qfQG7pjqx+zZWZjGSswhTt+626C0t/njXqug7Yps4c3dFblzGfreQHp7wNX5TFsvrxd6dAowVasMp61sJcRnB2w8cUzoe3RAYUDHyiHktwqMc=
- secure: g9YINaKAdMatsJ28G9jCGbSaguXCyxSTy+pBO6Ch0Cf57ZLOTka3HqDj8p3nV28LUIHZ3ut5WO43CeYKwt4AUtLpBS3a0dndHdY6D83uY6b2qh5hXlrcbeQTq2cvw2y95F7hm4D1kwrgZ7ViqaKggRcEupAL69YbJnxeUDKWEdI=

18
node_modules/duplexify/node_modules/readable-stream/LICENSE generated vendored Normal file
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@@ -0,0 +1,18 @@
Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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.

40
node_modules/duplexify/node_modules/readable-stream/README.md generated vendored Normal file
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@@ -0,0 +1,40 @@
# readable-stream
***Node-core v7.0.0 streams for userland*** [![Build Status](https://travis-ci.org/nodejs/readable-stream.svg?branch=master)](https://travis-ci.org/nodejs/readable-stream)
[![NPM](https://nodei.co/npm/readable-stream.png?downloads=true&downloadRank=true)](https://nodei.co/npm/readable-stream/)
[![NPM](https://nodei.co/npm-dl/readable-stream.png?&months=6&height=3)](https://nodei.co/npm/readable-stream/)
[![Sauce Test Status](https://saucelabs.com/browser-matrix/readable-stream.svg)](https://saucelabs.com/u/readable-stream)
```bash
npm install --save readable-stream
```
***Node-core streams for userland***
This package is a mirror of the Streams2 and Streams3 implementations in
Node-core.
Full documentation may be found on the [Node.js website](https://nodejs.org/dist/v7.1.0/docs/api/).
If you want to guarantee a stable streams base, regardless of what version of
Node you, or the users of your libraries are using, use **readable-stream** *only* and avoid the *"stream"* module in Node-core, for background see [this blogpost](http://r.va.gg/2014/06/why-i-dont-use-nodes-core-stream-module.html).
As of version 2.0.0 **readable-stream** uses semantic versioning.
# Streams WG Team Members
* **Chris Dickinson** ([@chrisdickinson](https://github.com/chrisdickinson)) &lt;christopher.s.dickinson@gmail.com&gt;
- Release GPG key: 9554F04D7259F04124DE6B476D5A82AC7E37093B
* **Calvin Metcalf** ([@calvinmetcalf](https://github.com/calvinmetcalf)) &lt;calvin.metcalf@gmail.com&gt;
- Release GPG key: F3EF5F62A87FC27A22E643F714CE4FF5015AA242
* **Rod Vagg** ([@rvagg](https://github.com/rvagg)) &lt;rod@vagg.org&gt;
- Release GPG key: DD8F2338BAE7501E3DD5AC78C273792F7D83545D
* **Sam Newman** ([@sonewman](https://github.com/sonewman)) &lt;newmansam@outlook.com&gt;
* **Mathias Buus** ([@mafintosh](https://github.com/mafintosh)) &lt;mathiasbuus@gmail.com&gt;
* **Domenic Denicola** ([@domenic](https://github.com/domenic)) &lt;d@domenic.me&gt;
* **Matteo Collina** ([@mcollina](https://github.com/mcollina)) &lt;matteo.collina@gmail.com&gt;
- Release GPG key: 3ABC01543F22DD2239285CDD818674489FBC127E

60
node_modules/duplexify/node_modules/readable-stream/doc/wg-meetings/2015-01-30.md generated vendored Normal file
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@@ -0,0 +1,60 @@
# streams WG Meeting 2015-01-30
## Links
* **Google Hangouts Video**: http://www.youtube.com/watch?v=I9nDOSGfwZg
* **GitHub Issue**: https://github.com/iojs/readable-stream/issues/106
* **Original Minutes Google Doc**: https://docs.google.com/document/d/17aTgLnjMXIrfjgNaTUnHQO7m3xgzHR2VXBTmi03Qii4/
## Agenda
Extracted from https://github.com/iojs/readable-stream/labels/wg-agenda prior to meeting.
* adopt a charter [#105](https://github.com/iojs/readable-stream/issues/105)
* release and versioning strategy [#101](https://github.com/iojs/readable-stream/issues/101)
* simpler stream creation [#102](https://github.com/iojs/readable-stream/issues/102)
* proposal: deprecate implicit flowing of streams [#99](https://github.com/iojs/readable-stream/issues/99)
## Minutes
### adopt a charter
* group: +1's all around
### What versioning scheme should be adopted?
* group: +1’s 3.0.0
* domenic+group: pulling in patches from other sources where appropriate
* mikeal: version independently, suggesting versions for io.js
* mikeal+domenic: work with TC to notify in advance of changes
simpler stream creation
### streamline creation of streams
* sam: streamline creation of streams
* domenic: nice simple solution posted
but, we lose the opportunity to change the model
may not be backwards incompatible (double check keys)
**action item:** domenic will check
### remove implicit flowing of streams on(‘data’)
* add isFlowing / isPaused
* mikeal: worrying that we’re documenting polyfill methods – confuses users
* domenic: more reflective API is probably good, with warning labels for users
* new section for mad scientists (reflective stream access)
* calvin: name the “third state”
* mikeal: maybe borrow the name from whatwg?
* domenic: we’re missing the “third state”
* consensus: kind of difficult to name the third state
* mikeal: figure out differences in states / compat
* mathias: always flow on data – eliminates third state
* explore what it breaks
**action items:**
* ask isaac for ability to list packages by what public io.js APIs they use (esp. Stream)
* ask rod/build for infrastructure
* **chris**: explore the “flow on data” approach
* add isPaused/isFlowing
* add new docs section
* move isPaused to that section

1
node_modules/duplexify/node_modules/readable-stream/duplex.js generated vendored Normal file
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@@ -0,0 +1 @@
module.exports = require("./lib/_stream_duplex.js")

75
node_modules/duplexify/node_modules/readable-stream/lib/_stream_duplex.js generated vendored Normal file
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@@ -0,0 +1,75 @@
// 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 objectKeys = Object.keys || function (obj) {
var 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');
util.inherits = require('inherits');
/*</replacement>*/
var Readable = require('./_stream_readable');
var Writable = require('./_stream_writable');
util.inherits(Duplex, Readable);
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);
}
// 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.
processNextTick(onEndNT, this);
}
function onEndNT(self) {
self.end();
}
function forEach(xs, f) {
for (var i = 0, l = xs.length; i < l; i++) {
f(xs[i], i);
}
}

26
node_modules/duplexify/node_modules/readable-stream/lib/_stream_passthrough.js generated vendored Normal file
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@@ -0,0 +1,26 @@
// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.
'use strict';
module.exports = PassThrough;
var Transform = require('./_stream_transform');
/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/
util.inherits(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);
};

941
node_modules/duplexify/node_modules/readable-stream/lib/_stream_readable.js generated vendored Normal file
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@@ -0,0 +1,941 @@
'use strict';
module.exports = Readable;
/*<replacement>*/
var processNextTick = require('process-nextick-args');
/*</replacement>*/
/*<replacement>*/
var isArray = require('isarray');
/*</replacement>*/
/*<replacement>*/
var Duplex;
/*</replacement>*/
Readable.ReadableState = ReadableState;
/*<replacement>*/
var EE = require('events').EventEmitter;
var EElistenerCount = function (emitter, type) {
return emitter.listeners(type).length;
};
/*</replacement>*/
/*<replacement>*/
var Stream;
(function () {
try {
Stream = require('st' + 'ream');
} catch (_) {} finally {
if (!Stream) Stream = require('events').EventEmitter;
}
})();
/*</replacement>*/
var Buffer = require('buffer').Buffer;
/*<replacement>*/
var bufferShim = require('buffer-shims');
/*</replacement>*/
/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/
/*<replacement>*/
var debugUtil = require('util');
var debug = void 0;
if (debugUtil && debugUtil.debuglog) {
debug = debugUtil.debuglog('stream');
} else {
debug = function () {};
}
/*</replacement>*/
var BufferList = require('./internal/streams/BufferList');
var StringDecoder;
util.inherits(Readable, Stream);
function prependListener(emitter, event, fn) {
// Sadly this is not cacheable as some libraries bundle their own
// event emitter implementation with them.
if (typeof emitter.prependListener === 'function') {
return emitter.prependListener(event, fn);
} else {
// This is a hack to make sure that our error handler is attached before any
// userland ones. NEVER DO THIS. This is here only because this code needs
// to continue to work with older versions of Node.js that do not include
// the prependListener() method. The goal is to eventually remove this hack.
if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
}
}
function ReadableState(options, stream) {
Duplex = Duplex || require('./_stream_duplex');
options = options || {};
// object stream flag. Used to make read(n) ignore n and to
// make all the buffer merging and length checks go away
this.objectMode = !!options.objectMode;
if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
// the point at which it stops calling _read() to fill the buffer
// Note: 0 is a valid value, means "don't call _read preemptively ever"
var hwm = options.highWaterMark;
var defaultHwm = this.objectMode ? 16 : 16 * 1024;
this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
// cast to ints.
this.highWaterMark = ~ ~this.highWaterMark;
// A linked list is used to store data chunks instead of an array because the
// linked list can remove elements from the beginning faster than
// array.shift()
this.buffer = new BufferList();
this.length = 0;
this.pipes = null;
this.pipesCount = 0;
this.flowing = null;
this.ended = false;
this.endEmitted = false;
this.reading = false;
// a flag to be able to tell if the onwrite cb is called immediately,
// or on a later tick. We set this to true at first, because any
// actions that shouldn't happen until "later" should generally also
// not happen before the first write call.
this.sync = true;
// whenever we return null, then we set a flag to say
// that we're awaiting a 'readable' event emission.
this.needReadable = false;
this.emittedReadable = false;
this.readableListening = false;
this.resumeScheduled = false;
// Crypto is kind of old and crusty. Historically, its default string
// encoding is 'binary' so we have to make this configurable.
// Everything else in the universe uses 'utf8', though.
this.defaultEncoding = options.defaultEncoding || 'utf8';
// when piping, we only care about 'readable' events that happen
// after read()ing all the bytes and not getting any pushback.
this.ranOut = false;
// the number of writers that are awaiting a drain event in .pipe()s
this.awaitDrain = 0;
// if true, a maybeReadMore has been scheduled
this.readingMore = false;
this.decoder = null;
this.encoding = null;
if (options.encoding) {
if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
this.decoder = new StringDecoder(options.encoding);
this.encoding = options.encoding;
}
}
function Readable(options) {
Duplex = Duplex || require('./_stream_duplex');
if (!(this instanceof Readable)) return new Readable(options);
this._readableState = new ReadableState(options, this);
// legacy
this.readable = true;
if (options && typeof options.read === 'function') this._read = options.read;
Stream.call(this);
}
// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function (chunk, encoding) {
var state = this._readableState;
if (!state.objectMode && typeof chunk === 'string') {
encoding = encoding || state.defaultEncoding;
if (encoding !== state.encoding) {
chunk = bufferShim.from(chunk, encoding);
encoding = '';
}
}
return readableAddChunk(this, state, chunk, encoding, false);
};
// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function (chunk) {
var state = this._readableState;
return readableAddChunk(this, state, chunk, '', true);
};
Readable.prototype.isPaused = function () {
return this._readableState.flowing === false;
};
function readableAddChunk(stream, state, chunk, encoding, addToFront) {
var er = chunkInvalid(state, chunk);
if (er) {
stream.emit('error', er);
} else if (chunk === null) {
state.reading = false;
onEofChunk(stream, state);
} else if (state.objectMode || chunk && chunk.length > 0) {
if (state.ended && !addToFront) {
var e = new Error('stream.push() after EOF');
stream.emit('error', e);
} else if (state.endEmitted && addToFront) {
var _e = new Error('stream.unshift() after end event');
stream.emit('error', _e);
} else {
var skipAdd;
if (state.decoder && !addToFront && !encoding) {
chunk = state.decoder.write(chunk);
skipAdd = !state.objectMode && chunk.length === 0;
}
if (!addToFront) state.reading = false;
// Don't add to the buffer if we've decoded to an empty string chunk and
// we're not in object mode
if (!skipAdd) {
// if we want the data now, just emit it.
if (state.flowing && state.length === 0 && !state.sync) {
stream.emit('data', chunk);
stream.read(0);
} else {
// update the buffer info.
state.length += state.objectMode ? 1 : chunk.length;
if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
if (state.needReadable) emitReadable(stream);
}
}
maybeReadMore(stream, state);
}
} else if (!addToFront) {
state.reading = false;
}
return needMoreData(state);
}
// if it's past the high water mark, we can push in some more.
// Also, if we have no data yet, we can stand some
// more bytes. This is to work around cases where hwm=0,
// such as the repl. Also, if the push() triggered a
// readable event, and the user called read(largeNumber) such that
// needReadable was set, then we ought to push more, so that another
// 'readable' event will be triggered.
function needMoreData(state) {
return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);
}
// backwards compatibility.
Readable.prototype.setEncoding = function (enc) {
if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
this._readableState.decoder = new StringDecoder(enc);
this._readableState.encoding = enc;
return this;
};
// Don't raise the hwm > 8MB
var MAX_HWM = 0x800000;
function computeNewHighWaterMark(n) {
if (n >= MAX_HWM) {
n = MAX_HWM;
} else {
// Get the next highest power of 2 to prevent increasing hwm excessively in
// tiny amounts
n--;
n |= n >>> 1;
n |= n >>> 2;
n |= n >>> 4;
n |= n >>> 8;
n |= n >>> 16;
n++;
}
return n;
}
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function howMuchToRead(n, state) {
if (n <= 0 || state.length === 0 && state.ended) return 0;
if (state.objectMode) return 1;
if (n !== n) {
// Only flow one buffer at a time
if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
}
// If we're asking for more than the current hwm, then raise the hwm.
if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
if (n <= state.length) return n;
// Don't have enough
if (!state.ended) {
state.needReadable = true;
return 0;
}
return state.length;
}
// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function (n) {
debug('read', n);
n = parseInt(n, 10);
var state = this._readableState;
var nOrig = n;
if (n !== 0) state.emittedReadable = false;
// if we're doing read(0) to trigger a readable event, but we
// already have a bunch of data in the buffer, then just trigger
// the 'readable' event and move on.
if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {
debug('read: emitReadable', state.length, state.ended);
if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
return null;
}
n = howMuchToRead(n, state);
// if we've ended, and we're now clear, then finish it up.
if (n === 0 && state.ended) {
if (state.length === 0) endReadable(this);
return null;
}
// All the actual chunk generation logic needs to be
// *below* the call to _read. The reason is that in certain
// synthetic stream cases, such as passthrough streams, _read
// may be a completely synchronous operation which may change
// the state of the read buffer, providing enough data when
// before there was *not* enough.
//
// So, the steps are:
// 1. Figure out what the state of things will be after we do
// a read from the buffer.
//
// 2. If that resulting state will trigger a _read, then call _read.
// Note that this may be asynchronous, or synchronous. Yes, it is
// deeply ugly to write APIs this way, but that still doesn't mean
// that the Readable class should behave improperly, as streams are
// designed to be sync/async agnostic.
// Take note if the _read call is sync or async (ie, if the read call
// has returned yet), so that we know whether or not it's safe to emit
// 'readable' etc.
//
// 3. Actually pull the requested chunks out of the buffer and return.
// if we need a readable event, then we need to do some reading.
var doRead = state.needReadable;
debug('need readable', doRead);
// if we currently have less than the highWaterMark, then also read some
if (state.length === 0 || state.length - n < state.highWaterMark) {
doRead = true;
debug('length less than watermark', doRead);
}
// however, if we've ended, then there's no point, and if we're already
// reading, then it's unnecessary.
if (state.ended || state.reading) {
doRead = false;
debug('reading or ended', doRead);
} else if (doRead) {
debug('do read');
state.reading = true;
state.sync = true;
// if the length is currently zero, then we *need* a readable event.
if (state.length === 0) state.needReadable = true;
// call internal read method
this._read(state.highWaterMark);
state.sync = false;
// If _read pushed data synchronously, then `reading` will be false,
// and we need to re-evaluate how much data we can return to the user.
if (!state.reading) n = howMuchToRead(nOrig, state);
}
var ret;
if (n > 0) ret = fromList(n, state);else ret = null;
if (ret === null) {
state.needReadable = true;
n = 0;
} else {
state.length -= n;
}
if (state.length === 0) {
// If we have nothing in the buffer, then we want to know
// as soon as we *do* get something into the buffer.
if (!state.ended) state.needReadable = true;
// If we tried to read() past the EOF, then emit end on the next tick.
if (nOrig !== n && state.ended) endReadable(this);
}
if (ret !== null) this.emit('data', ret);
return ret;
};
function chunkInvalid(state, chunk) {
var er = null;
if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) {
er = new TypeError('Invalid non-string/buffer chunk');
}
return er;
}
function onEofChunk(stream, state) {
if (state.ended) return;
if (state.decoder) {
var chunk = state.decoder.end();
if (chunk && chunk.length) {
state.buffer.push(chunk);
state.length += state.objectMode ? 1 : chunk.length;
}
}
state.ended = true;
// emit 'readable' now to make sure it gets picked up.
emitReadable(stream);
}
// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow. This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
var state = stream._readableState;
state.needReadable = false;
if (!state.emittedReadable) {
debug('emitReadable', state.flowing);
state.emittedReadable = true;
if (state.sync) processNextTick(emitReadable_, stream);else emitReadable_(stream);
}
}
function emitReadable_(stream) {
debug('emit readable');
stream.emit('readable');
flow(stream);
}
// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data. that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
if (!state.readingMore) {
state.readingMore = true;
processNextTick(maybeReadMore_, stream, state);
}
}
function maybeReadMore_(stream, state) {
var len = state.length;
while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {
debug('maybeReadMore read 0');
stream.read(0);
if (len === state.length)
// didn't get any data, stop spinning.
break;else len = state.length;
}
state.readingMore = false;
}
// abstract method. to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function (n) {
this.emit('error', new Error('_read() is not implemented'));
};
Readable.prototype.pipe = function (dest, pipeOpts) {
var src = this;
var state = this._readableState;
switch (state.pipesCount) {
case 0:
state.pipes = dest;
break;
case 1:
state.pipes = [state.pipes, dest];
break;
default:
state.pipes.push(dest);
break;
}
state.pipesCount += 1;
debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
var endFn = doEnd ? onend : cleanup;
if (state.endEmitted) processNextTick(endFn);else src.once('end', endFn);
dest.on('unpipe', onunpipe);
function onunpipe(readable) {
debug('onunpipe');
if (readable === src) {
cleanup();
}
}
function onend() {
debug('onend');
dest.end();
}
// when the dest drains, it reduces the awaitDrain counter
// on the source. This would be more elegant with a .once()
// handler in flow(), but adding and removing repeatedly is
// too slow.
var ondrain = pipeOnDrain(src);
dest.on('drain', ondrain);
var cleanedUp = false;
function cleanup() {
debug('cleanup');
// cleanup event handlers once the pipe is broken
dest.removeListener('close', onclose);
dest.removeListener('finish', onfinish);
dest.removeListener('drain', ondrain);
dest.removeListener('error', onerror);
dest.removeListener('unpipe', onunpipe);
src.removeListener('end', onend);
src.removeListener('end', cleanup);
src.removeListener('data', ondata);
cleanedUp = true;
// if the reader is waiting for a drain event from this
// specific writer, then it would cause it to never start
// flowing again.
// So, if this is awaiting a drain, then we just call it now.
// If we don't know, then assume that we are waiting for one.
if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
}
// If the user pushes more data while we're writing to dest then we'll end up
// in ondata again. However, we only want to increase awaitDrain once because
// dest will only emit one 'drain' event for the multiple writes.
// => Introduce a guard on increasing awaitDrain.
var increasedAwaitDrain = false;
src.on('data', ondata);
function ondata(chunk) {
debug('ondata');
increasedAwaitDrain = false;
var ret = dest.write(chunk);
if (false === ret && !increasedAwaitDrain) {
// If the user unpiped during `dest.write()`, it is possible
// to get stuck in a permanently paused state if that write
// also returned false.
// => Check whether `dest` is still a piping destination.
if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
debug('false write response, pause', src._readableState.awaitDrain);
src._readableState.awaitDrain++;
increasedAwaitDrain = true;
}
src.pause();
}
}
// if the dest has an error, then stop piping into it.
// however, don't suppress the throwing behavior for this.
function onerror(er) {
debug('onerror', er);
unpipe();
dest.removeListener('error', onerror);
if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);
}
// Make sure our error handler is attached before userland ones.
prependListener(dest, 'error', onerror);
// Both close and finish should trigger unpipe, but only once.
function onclose() {
dest.removeListener('finish', onfinish);
unpipe();
}
dest.once('close', onclose);
function onfinish() {
debug('onfinish');
dest.removeListener('close', onclose);
unpipe();
}
dest.once('finish', onfinish);
function unpipe() {
debug('unpipe');
src.unpipe(dest);
}
// tell the dest that it's being piped to
dest.emit('pipe', src);
// start the flow if it hasn't been started already.
if (!state.flowing) {
debug('pipe resume');
src.resume();
}
return dest;
};
function pipeOnDrain(src) {
return function () {
var state = src._readableState;
debug('pipeOnDrain', state.awaitDrain);
if (state.awaitDrain) state.awaitDrain--;
if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
state.flowing = true;
flow(src);
}
};
}
Readable.prototype.unpipe = function (dest) {
var state = this._readableState;
// if we're not piping anywhere, then do nothing.
if (state.pipesCount === 0) return this;
// just one destination. most common case.
if (state.pipesCount === 1) {
// passed in one, but it's not the right one.
if (dest && dest !== state.pipes) return this;
if (!dest) dest = state.pipes;
// got a match.
state.pipes = null;
state.pipesCount = 0;
state.flowing = false;
if (dest) dest.emit('unpipe', this);
return this;
}
// slow case. multiple pipe destinations.
if (!dest) {
// remove all.
var dests = state.pipes;
var len = state.pipesCount;
state.pipes = null;
state.pipesCount = 0;
state.flowing = false;
for (var i = 0; i < len; i++) {
dests[i].emit('unpipe', this);
}return this;
}
// try to find the right one.
var index = indexOf(state.pipes, dest);
if (index === -1) return this;
state.pipes.splice(index, 1);
state.pipesCount -= 1;
if (state.pipesCount === 1) state.pipes = state.pipes[0];
dest.emit('unpipe', this);
return this;
};
// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function (ev, fn) {
var res = Stream.prototype.on.call(this, ev, fn);
if (ev === 'data') {
// Start flowing on next tick if stream isn't explicitly paused
if (this._readableState.flowing !== false) this.resume();
} else if (ev === 'readable') {
var state = this._readableState;
if (!state.endEmitted && !state.readableListening) {
state.readableListening = state.needReadable = true;
state.emittedReadable = false;
if (!state.reading) {
processNextTick(nReadingNextTick, this);
} else if (state.length) {
emitReadable(this, state);
}
}
}
return res;
};
Readable.prototype.addListener = Readable.prototype.on;
function nReadingNextTick(self) {
debug('readable nexttick read 0');
self.read(0);
}
// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function () {
var state = this._readableState;
if (!state.flowing) {
debug('resume');
state.flowing = true;
resume(this, state);
}
return this;
};
function resume(stream, state) {
if (!state.resumeScheduled) {
state.resumeScheduled = true;
processNextTick(resume_, stream, state);
}
}
function resume_(stream, state) {
if (!state.reading) {
debug('resume read 0');
stream.read(0);
}
state.resumeScheduled = false;
state.awaitDrain = 0;
stream.emit('resume');
flow(stream);
if (state.flowing && !state.reading) stream.read(0);
}
Readable.prototype.pause = function () {
debug('call pause flowing=%j', this._readableState.flowing);
if (false !== this._readableState.flowing) {
debug('pause');
this._readableState.flowing = false;
this.emit('pause');
}
return this;
};
function flow(stream) {
var state = stream._readableState;
debug('flow', state.flowing);
while (state.flowing && stream.read() !== null) {}
}
// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function (stream) {
var state = this._readableState;
var paused = false;
var self = this;
stream.on('end', function () {
debug('wrapped end');
if (state.decoder && !state.ended) {
var chunk = state.decoder.end();
if (chunk && chunk.length) self.push(chunk);
}
self.push(null);
});
stream.on('data', function (chunk) {
debug('wrapped data');
if (state.decoder) chunk = state.decoder.write(chunk);
// don't skip over falsy values in objectMode
if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
var ret = self.push(chunk);
if (!ret) {
paused = true;
stream.pause();
}
});
// proxy all the other methods.
// important when wrapping filters and duplexes.
for (var i in stream) {
if (this[i] === undefined && typeof stream[i] === 'function') {
this[i] = function (method) {
return function () {
return stream[method].apply(stream, arguments);
};
}(i);
}
}
// proxy certain important events.
var events = ['error', 'close', 'destroy', 'pause', 'resume'];
forEach(events, function (ev) {
stream.on(ev, self.emit.bind(self, ev));
});
// when we try to consume some more bytes, simply unpause the
// underlying stream.
self._read = function (n) {
debug('wrapped _read', n);
if (paused) {
paused = false;
stream.resume();
}
};
return self;
};
// exposed for testing purposes only.
Readable._fromList = fromList;
// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromList(n, state) {
// nothing buffered
if (state.length === 0) return null;
var ret;
if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
// read it all, truncate the list
if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);
state.buffer.clear();
} else {
// read part of list
ret = fromListPartial(n, state.buffer, state.decoder);
}
return ret;
}
// Extracts only enough buffered data to satisfy the amount requested.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromListPartial(n, list, hasStrings) {
var ret;
if (n < list.head.data.length) {
// slice is the same for buffers and strings
ret = list.head.data.slice(0, n);
list.head.data = list.head.data.slice(n);
} else if (n === list.head.data.length) {
// first chunk is a perfect match
ret = list.shift();
} else {
// result spans more than one buffer
ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);
}
return ret;
}
// Copies a specified amount of characters from the list of buffered data
// chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBufferString(n, list) {
var p = list.head;
var c = 1;
var ret = p.data;
n -= ret.length;
while (p = p.next) {
var str = p.data;
var nb = n > str.length ? str.length : n;
if (nb === str.length) ret += str;else ret += str.slice(0, n);
n -= nb;
if (n === 0) {
if (nb === str.length) {
++c;
if (p.next) list.head = p.next;else list.head = list.tail = null;
} else {
list.head = p;
p.data = str.slice(nb);
}
break;
}
++c;
}
list.length -= c;
return ret;
}
// Copies a specified amount of bytes from the list of buffered data chunks.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function copyFromBuffer(n, list) {
var ret = bufferShim.allocUnsafe(n);
var p = list.head;
var c = 1;
p.data.copy(ret);
n -= p.data.length;
while (p = p.next) {
var buf = p.data;
var nb = n > buf.length ? buf.length : n;
buf.copy(ret, ret.length - n, 0, nb);
n -= nb;
if (n === 0) {
if (nb === buf.length) {
++c;
if (p.next) list.head = p.next;else list.head = list.tail = null;
} else {
list.head = p;
p.data = buf.slice(nb);
}
break;
}
++c;
}
list.length -= c;
return ret;
}
function endReadable(stream) {
var state = stream._readableState;
// If we get here before consuming all the bytes, then that is a
// bug in node. Should never happen.
if (state.length > 0) throw new Error('"endReadable()" called on non-empty stream');
if (!state.endEmitted) {
state.ended = true;
processNextTick(endReadableNT, state, stream);
}
}
function endReadableNT(state, stream) {
// Check that we didn't get one last unshift.
if (!state.endEmitted && state.length === 0) {
state.endEmitted = true;
stream.readable = false;
stream.emit('end');
}
}
function forEach(xs, f) {
for (var i = 0, l = xs.length; i < l; i++) {
f(xs[i], i);
}
}
function indexOf(xs, x) {
for (var i = 0, l = xs.length; i < l; i++) {
if (xs[i] === x) return i;
}
return -1;
}

182
node_modules/duplexify/node_modules/readable-stream/lib/_stream_transform.js generated vendored Normal file
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@@ -0,0 +1,182 @@
// a transform stream is a readable/writable stream where you do
// something with the data. Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored. (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation. For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes. When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up. When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer. When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks. If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk. However,
// a pathological inflate type of transform can cause excessive buffering
// here. For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output. In this case, you could write a very small
// amount of input, and end up with a very large amount of output. In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform. A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.
'use strict';
module.exports = Transform;
var Duplex = require('./_stream_duplex');
/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/
util.inherits(Transform, Duplex);
function TransformState(stream) {
this.afterTransform = function (er, data) {
return afterTransform(stream, er, data);
};
this.needTransform = false;
this.transforming = false;
this.writecb = null;
this.writechunk = null;
this.writeencoding = null;
}
function afterTransform(stream, er, data) {
var ts = stream._transformState;
ts.transforming = false;
var cb = ts.writecb;
if (!cb) return stream.emit('error', new Error('no writecb in Transform class'));
ts.writechunk = null;
ts.writecb = null;
if (data !== null && data !== undefined) stream.push(data);
cb(er);
var rs = stream._readableState;
rs.reading = false;
if (rs.needReadable || rs.length < rs.highWaterMark) {
stream._read(rs.highWaterMark);
}
}
function Transform(options) {
if (!(this instanceof Transform)) return new Transform(options);
Duplex.call(this, options);
this._transformState = new TransformState(this);
var stream = this;
// start out asking for a readable event once data is transformed.
this._readableState.needReadable = true;
// we have implemented the _read method, and done the other things
// that Readable wants before the first _read call, so unset the
// sync guard flag.
this._readableState.sync = false;
if (options) {
if (typeof options.transform === 'function') this._transform = options.transform;
if (typeof options.flush === 'function') this._flush = options.flush;
}
// When the writable side finishes, then flush out anything remaining.
this.once('prefinish', function () {
if (typeof this._flush === 'function') this._flush(function (er, data) {
done(stream, er, data);
});else done(stream);
});
}
Transform.prototype.push = function (chunk, encoding) {
this._transformState.needTransform = false;
return Duplex.prototype.push.call(this, chunk, encoding);
};
// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side. You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk. If you pass
// an error, then that'll put the hurt on the whole operation. If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function (chunk, encoding, cb) {
throw new Error('_transform() is not implemented');
};
Transform.prototype._write = function (chunk, encoding, cb) {
var ts = this._transformState;
ts.writecb = cb;
ts.writechunk = chunk;
ts.writeencoding = encoding;
if (!ts.transforming) {
var rs = this._readableState;
if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
}
};
// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function (n) {
var ts = this._transformState;
if (ts.writechunk !== null && ts.writecb && !ts.transforming) {
ts.transforming = true;
this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
} else {
// mark that we need a transform, so that any data that comes in
// will get processed, now that we've asked for it.
ts.needTransform = true;
}
};
function done(stream, er, data) {
if (er) return stream.emit('error', er);
if (data !== null && data !== undefined) stream.push(data);
// if there's nothing in the write buffer, then that means
// that nothing more will ever be provided
var ws = stream._writableState;
var ts = stream._transformState;
if (ws.length) throw new Error('Calling transform done when ws.length != 0');
if (ts.transforming) throw new Error('Calling transform done when still transforming');
return stream.push(null);
}

554
node_modules/duplexify/node_modules/readable-stream/lib/_stream_writable.js generated vendored Normal file
View File

@@ -0,0 +1,554 @@
// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.
'use strict';
module.exports = Writable;
/*<replacement>*/
var processNextTick = require('process-nextick-args');
/*</replacement>*/
/*<replacement>*/
var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick;
/*</replacement>*/
/*<replacement>*/
var Duplex;
/*</replacement>*/
Writable.WritableState = WritableState;
/*<replacement>*/
var util = require('core-util-is');
util.inherits = require('inherits');
/*</replacement>*/
/*<replacement>*/
var internalUtil = {
deprecate: require('util-deprecate')
};
/*</replacement>*/
/*<replacement>*/
var Stream;
(function () {
try {
Stream = require('st' + 'ream');
} catch (_) {} finally {
if (!Stream) Stream = require('events').EventEmitter;
}
})();
/*</replacement>*/
var Buffer = require('buffer').Buffer;
/*<replacement>*/
var bufferShim = require('buffer-shims');
/*</replacement>*/
util.inherits(Writable, Stream);
function nop() {}
function WriteReq(chunk, encoding, cb) {
this.chunk = chunk;
this.encoding = encoding;
this.callback = cb;
this.next = null;
}
function WritableState(options, stream) {
Duplex = Duplex || require('./_stream_duplex');
options = options || {};
// object stream flag to indicate whether or not this stream
// contains buffers or objects.
this.objectMode = !!options.objectMode;
if (stream instanceof Duplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
// the point at which write() starts returning false
// Note: 0 is a valid value, means that we always return false if
// the entire buffer is not flushed immediately on write()
var hwm = options.highWaterMark;
var defaultHwm = this.objectMode ? 16 : 16 * 1024;
this.highWaterMark = hwm || hwm === 0 ? hwm : defaultHwm;
// cast to ints.
this.highWaterMark = ~ ~this.highWaterMark;
// drain event flag.
this.needDrain = false;
// at the start of calling end()
this.ending = false;
// when end() has been called, and returned
this.ended = false;
// when 'finish' is emitted
this.finished = false;
// should we decode strings into buffers before passing to _write?
// this is here so that some node-core streams can optimize string
// handling at a lower level.
var noDecode = options.decodeStrings === false;
this.decodeStrings = !noDecode;
// Crypto is kind of old and crusty. Historically, its default string
// encoding is 'binary' so we have to make this configurable.
// Everything else in the universe uses 'utf8', though.
this.defaultEncoding = options.defaultEncoding || 'utf8';
// not an actual buffer we keep track of, but a measurement
// of how much we're waiting to get pushed to some underlying
// socket or file.
this.length = 0;
// a flag to see when we're in the middle of a write.
this.writing = false;
// when true all writes will be buffered until .uncork() call
this.corked = 0;
// a flag to be able to tell if the onwrite cb is called immediately,
// or on a later tick. We set this to true at first, because any
// actions that shouldn't happen until "later" should generally also
// not happen before the first write call.
this.sync = true;
// a flag to know if we're processing previously buffered items, which
// may call the _write() callback in the same tick, so that we don't
// end up in an overlapped onwrite situation.
this.bufferProcessing = false;
// the callback that's passed to _write(chunk,cb)
this.onwrite = function (er) {
onwrite(stream, er);
};
// the callback that the user supplies to write(chunk,encoding,cb)
this.writecb = null;
// the amount that is being written when _write is called.
this.writelen = 0;
this.bufferedRequest = null;
this.lastBufferedRequest = null;
// number of pending user-supplied write callbacks
// this must be 0 before 'finish' can be emitted
this.pendingcb = 0;
// emit prefinish if the only thing we're waiting for is _write cbs
// This is relevant for synchronous Transform streams
this.prefinished = false;
// True if the error was already emitted and should not be thrown again
this.errorEmitted = false;
// count buffered requests
this.bufferedRequestCount = 0;
// allocate the first CorkedRequest, there is always
// one allocated and free to use, and we maintain at most two
this.corkedRequestsFree = new CorkedRequest(this);
}
WritableState.prototype.getBuffer = function getBuffer() {
var current = this.bufferedRequest;
var out = [];
while (current) {
out.push(current);
current = current.next;
}
return out;
};
(function () {
try {
Object.defineProperty(WritableState.prototype, 'buffer', {
get: internalUtil.deprecate(function () {
return this.getBuffer();
}, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.')
});
} catch (_) {}
})();
// Test _writableState for inheritance to account for Duplex streams,
// whose prototype chain only points to Readable.
var realHasInstance;
if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
realHasInstance = Function.prototype[Symbol.hasInstance];
Object.defineProperty(Writable, Symbol.hasInstance, {
value: function (object) {
if (realHasInstance.call(this, object)) return true;
return object && object._writableState instanceof WritableState;
}
});
} else {
realHasInstance = function (object) {
return object instanceof this;
};
}
function Writable(options) {
Duplex = Duplex || require('./_stream_duplex');
// Writable ctor is applied to Duplexes, too.
// `realHasInstance` is necessary because using plain `instanceof`
// would return false, as no `_writableState` property is attached.
// Trying to use the custom `instanceof` for Writable here will also break the
// Node.js LazyTransform implementation, which has a non-trivial getter for
// `_writableState` that would lead to infinite recursion.
if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {
return new Writable(options);
}
this._writableState = new WritableState(options, this);
// legacy.
this.writable = true;
if (options) {
if (typeof options.write === 'function') this._write = options.write;
if (typeof options.writev === 'function') this._writev = options.writev;
}
Stream.call(this);
}
// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function () {
this.emit('error', new Error('Cannot pipe, not readable'));
};
function writeAfterEnd(stream, cb) {
var er = new Error('write after end');
// TODO: defer error events consistently everywhere, not just the cb
stream.emit('error', er);
processNextTick(cb, er);
}
// If we get something that is not a buffer, string, null, or undefined,
// and we're not in objectMode, then that's an error.
// Otherwise stream chunks are all considered to be of length=1, and the
// watermarks determine how many objects to keep in the buffer, rather than
// how many bytes or characters.
function validChunk(stream, state, chunk, cb) {
var valid = true;
var er = false;
// Always throw error if a null is written
// if we are not in object mode then throw
// if it is not a buffer, string, or undefined.
if (chunk === null) {
er = new TypeError('May not write null values to stream');
} else if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
er = new TypeError('Invalid non-string/buffer chunk');
}
if (er) {
stream.emit('error', er);
processNextTick(cb, er);
valid = false;
}
return valid;
}
Writable.prototype.write = function (chunk, encoding, cb) {
var state = this._writableState;
var ret = false;
if (typeof encoding === 'function') {
cb = encoding;
encoding = null;
}
if (Buffer.isBuffer(chunk)) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
if (typeof cb !== 'function') cb = nop;
if (state.ended) writeAfterEnd(this, cb);else if (validChunk(this, state, chunk, cb)) {
state.pendingcb++;
ret = writeOrBuffer(this, state, chunk, encoding, cb);
}
return ret;
};
Writable.prototype.cork = function () {
var state = this._writableState;
state.corked++;
};
Writable.prototype.uncork = function () {
var state = this._writableState;
if (state.corked) {
state.corked--;
if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
}
};
Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
// node::ParseEncoding() requires lower case.
if (typeof encoding === 'string') encoding = encoding.toLowerCase();
if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);
this._writableState.defaultEncoding = encoding;
return this;
};
function decodeChunk(state, chunk, encoding) {
if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
chunk = bufferShim.from(chunk, encoding);
}
return chunk;
}
// if we're already writing something, then just put this
// in the queue, and wait our turn. Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, chunk, encoding, cb) {
chunk = decodeChunk(state, chunk, encoding);
if (Buffer.isBuffer(chunk)) encoding = 'buffer';
var len = state.objectMode ? 1 : chunk.length;
state.length += len;
var ret = state.length < state.highWaterMark;
// we must ensure that previous needDrain will not be reset to false.
if (!ret) state.needDrain = true;
if (state.writing || state.corked) {
var last = state.lastBufferedRequest;
state.lastBufferedRequest = new WriteReq(chunk, encoding, cb);
if (last) {
last.next = state.lastBufferedRequest;
} else {
state.bufferedRequest = state.lastBufferedRequest;
}
state.bufferedRequestCount += 1;
} else {
doWrite(stream, state, false, len, chunk, encoding, cb);
}
return ret;
}
function doWrite(stream, state, writev, len, chunk, encoding, cb) {
state.writelen = len;
state.writecb = cb;
state.writing = true;
state.sync = true;
if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
state.sync = false;
}
function onwriteError(stream, state, sync, er, cb) {
--state.pendingcb;
if (sync) processNextTick(cb, er);else cb(er);
stream._writableState.errorEmitted = true;
stream.emit('error', er);
}
function onwriteStateUpdate(state) {
state.writing = false;
state.writecb = null;
state.length -= state.writelen;
state.writelen = 0;
}
function onwrite(stream, er) {
var state = stream._writableState;
var sync = state.sync;
var cb = state.writecb;
onwriteStateUpdate(state);
if (er) onwriteError(stream, state, sync, er, cb);else {
// Check if we're actually ready to finish, but don't emit yet
var finished = needFinish(state);
if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
clearBuffer(stream, state);
}
if (sync) {
/*<replacement>*/
asyncWrite(afterWrite, stream, state, finished, cb);
/*</replacement>*/
} else {
afterWrite(stream, state, finished, cb);
}
}
}
function afterWrite(stream, state, finished, cb) {
if (!finished) onwriteDrain(stream, state);
state.pendingcb--;
cb();
finishMaybe(stream, state);
}
// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
if (state.length === 0 && state.needDrain) {
state.needDrain = false;
stream.emit('drain');
}
}
// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
state.bufferProcessing = true;
var entry = state.bufferedRequest;
if (stream._writev && entry && entry.next) {
// Fast case, write everything using _writev()
var l = state.bufferedRequestCount;
var buffer = new Array(l);
var holder = state.corkedRequestsFree;
holder.entry = entry;
var count = 0;
while (entry) {
buffer[count] = entry;
entry = entry.next;
count += 1;
}
doWrite(stream, state, true, state.length, buffer, '', holder.finish);
// doWrite is almost always async, defer these to save a bit of time
// as the hot path ends with doWrite
state.pendingcb++;
state.lastBufferedRequest = null;
if (holder.next) {
state.corkedRequestsFree = holder.next;
holder.next = null;
} else {
state.corkedRequestsFree = new CorkedRequest(state);
}
} else {
// Slow case, write chunks one-by-one
while (entry) {
var chunk = entry.chunk;
var encoding = entry.encoding;
var cb = entry.callback;
var len = state.objectMode ? 1 : chunk.length;
doWrite(stream, state, false, len, chunk, encoding, cb);
entry = entry.next;
// if we didn't call the onwrite immediately, then
// it means that we need to wait until it does.
// also, that means that the chunk and cb are currently
// being processed, so move the buffer counter past them.
if (state.writing) {
break;
}
}
if (entry === null) state.lastBufferedRequest = null;
}
state.bufferedRequestCount = 0;
state.bufferedRequest = entry;
state.bufferProcessing = false;
}
Writable.prototype._write = function (chunk, encoding, cb) {
cb(new Error('_write() is not implemented'));
};
Writable.prototype._writev = null;
Writable.prototype.end = function (chunk, encoding, cb) {
var state = this._writableState;
if (typeof chunk === 'function') {
cb = chunk;
chunk = null;
encoding = null;
} else if (typeof encoding === 'function') {
cb = encoding;
encoding = null;
}
if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
// .end() fully uncorks
if (state.corked) {
state.corked = 1;
this.uncork();
}
// ignore unnecessary end() calls.
if (!state.ending && !state.finished) endWritable(this, state, cb);
};
function needFinish(state) {
return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}
function prefinish(stream, state) {
if (!state.prefinished) {
state.prefinished = true;
stream.emit('prefinish');
}
}
function finishMaybe(stream, state) {
var need = needFinish(state);
if (need) {
if (state.pendingcb === 0) {
prefinish(stream, state);
state.finished = true;
stream.emit('finish');
} else {
prefinish(stream, state);
}
}
return need;
}
function endWritable(stream, state, cb) {
state.ending = true;
finishMaybe(stream, state);
if (cb) {
if (state.finished) processNextTick(cb);else stream.once('finish', cb);
}
state.ended = true;
stream.writable = false;
}
// It seems a linked list but it is not
// there will be only 2 of these for each stream
function CorkedRequest(state) {
var _this = this;
this.next = null;
this.entry = null;
this.finish = function (err) {
var entry = _this.entry;
_this.entry = null;
while (entry) {
var cb = entry.callback;
state.pendingcb--;
cb(err);
entry = entry.next;
}
if (state.corkedRequestsFree) {
state.corkedRequestsFree.next = _this;
} else {
state.corkedRequestsFree = _this;
}
};
}

64
node_modules/duplexify/node_modules/readable-stream/lib/internal/streams/BufferList.js generated vendored Normal file
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@@ -0,0 +1,64 @@
'use strict';
var Buffer = require('buffer').Buffer;
/*<replacement>*/
var bufferShim = require('buffer-shims');
/*</replacement>*/
module.exports = BufferList;
function BufferList() {
this.head = null;
this.tail = null;
this.length = 0;
}
BufferList.prototype.push = function (v) {
var entry = { data: v, next: null };
if (this.length > 0) this.tail.next = entry;else this.head = entry;
this.tail = entry;
++this.length;
};
BufferList.prototype.unshift = function (v) {
var entry = { data: v, next: this.head };
if (this.length === 0) this.tail = entry;
this.head = entry;
++this.length;
};
BufferList.prototype.shift = function () {
if (this.length === 0) return;
var ret = this.head.data;
if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
--this.length;
return ret;
};
BufferList.prototype.clear = function () {
this.head = this.tail = null;
this.length = 0;
};
BufferList.prototype.join = function (s) {
if (this.length === 0) return '';
var p = this.head;
var ret = '' + p.data;
while (p = p.next) {
ret += s + p.data;
}return ret;
};
BufferList.prototype.concat = function (n) {
if (this.length === 0) return bufferShim.alloc(0);
if (this.length === 1) return this.head.data;
var ret = bufferShim.allocUnsafe(n >>> 0);
var p = this.head;
var i = 0;
while (p) {
p.data.copy(ret, i);
i += p.data.length;
p = p.next;
}
return ret;
};

126
node_modules/duplexify/node_modules/readable-stream/package.json generated vendored Normal file
View File

@@ -0,0 +1,126 @@
{
"_args": [
[
{
"raw": "readable-stream@^2.0.0",
"scope": null,
"escapedName": "readable-stream",
"name": "readable-stream",
"rawSpec": "^2.0.0",
"spec": ">=2.0.0 <3.0.0",
"type": "range"
},
"D:\\web\\layui\\res\\layui\\node_modules\\duplexify"
]
],
"_from": "readable-stream@>=2.0.0 <3.0.0",
"_id": "readable-stream@2.2.2",
"_inCache": true,
"_location": "/duplexify/readable-stream",
"_nodeVersion": "7.1.0",
"_npmOperationalInternal": {
"host": "packages-18-east.internal.npmjs.com",
"tmp": "tmp/readable-stream-2.2.2.tgz_1479128709230_0.5291099038440734"
},
"_npmUser": {
"name": "cwmma",
"email": "calvin.metcalf@gmail.com"
},
"_npmVersion": "3.10.7",
"_phantomChildren": {},
"_requested": {
"raw": "readable-stream@^2.0.0",
"scope": null,
"escapedName": "readable-stream",
"name": "readable-stream",
"rawSpec": "^2.0.0",
"spec": ">=2.0.0 <3.0.0",
"type": "range"
},
"_requiredBy": [
"/duplexify"
],
"_resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.2.2.tgz",
"_shasum": "a9e6fec3c7dda85f8bb1b3ba7028604556fc825e",
"_shrinkwrap": null,
"_spec": "readable-stream@^2.0.0",
"_where": "D:\\web\\layui\\res\\layui\\node_modules\\duplexify",
"browser": {
"util": false
},
"bugs": {
"url": "https://github.com/nodejs/readable-stream/issues"
},
"dependencies": {
"buffer-shims": "^1.0.0",
"core-util-is": "~1.0.0",
"inherits": "~2.0.1",
"isarray": "~1.0.0",
"process-nextick-args": "~1.0.6",
"string_decoder": "~0.10.x",
"util-deprecate": "~1.0.1"
},
"description": "Streams3, a user-land copy of the stream library from Node.js",
"devDependencies": {
"assert": "~1.4.0",
"babel-polyfill": "^6.9.1",
"buffer": "^4.9.0",
"nyc": "^6.4.0",
"tap": "~0.7.1",
"tape": "~4.5.1",
"zuul": "~3.10.0"
},
"directories": {},
"dist": {
"shasum": "a9e6fec3c7dda85f8bb1b3ba7028604556fc825e",
"tarball": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.2.2.tgz"
},
"gitHead": "f239454e183d2032c0eb7d79a1c08f674fdd8db4",
"homepage": "https://github.com/nodejs/readable-stream#readme",
"keywords": [
"readable",
"stream",
"pipe"
],
"license": "MIT",
"main": "readable.js",
"maintainers": [
{
"name": "isaacs",
"email": "isaacs@npmjs.com"
},
{
"name": "tootallnate",
"email": "nathan@tootallnate.net"
},
{
"name": "rvagg",
"email": "rod@vagg.org"
},
{
"name": "cwmma",
"email": "calvin.metcalf@gmail.com"
}
],
"name": "readable-stream",
"nyc": {
"include": [
"lib/**.js"
]
},
"optionalDependencies": {},
"readme": "ERROR: No README data found!",
"repository": {
"type": "git",
"url": "git://github.com/nodejs/readable-stream.git"
},
"scripts": {
"browser": "npm run write-zuul && zuul --browser-retries 2 -- test/browser.js",
"cover": "nyc npm test",
"local": "zuul --local 3000 --no-coverage -- test/browser.js",
"report": "nyc report --reporter=lcov",
"test": "tap test/parallel/*.js test/ours/*.js",
"write-zuul": "printf \"ui: tape\nbrowsers:\n - name: $BROWSER_NAME\n version: $BROWSER_VERSION\n\">.zuul.yml"
},
"version": "2.2.2"
}

1
node_modules/duplexify/node_modules/readable-stream/passthrough.js generated vendored Normal file
View File

@@ -0,0 +1 @@
module.exports = require("./lib/_stream_passthrough.js")

16
node_modules/duplexify/node_modules/readable-stream/readable.js generated vendored Normal file
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@@ -0,0 +1,16 @@
var Stream = (function (){
try {
return require('st' + 'ream'); // hack to fix a circular dependency issue when used with browserify
} catch(_){}
}());
exports = module.exports = require('./lib/_stream_readable.js');
exports.Stream = Stream || exports;
exports.Readable = exports;
exports.Writable = require('./lib/_stream_writable.js');
exports.Duplex = require('./lib/_stream_duplex.js');
exports.Transform = require('./lib/_stream_transform.js');
exports.PassThrough = require('./lib/_stream_passthrough.js');
if (!process.browser && process.env.READABLE_STREAM === 'disable' && Stream) {
module.exports = Stream;
}

1
node_modules/duplexify/node_modules/readable-stream/transform.js generated vendored Normal file
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@@ -0,0 +1 @@
module.exports = require("./lib/_stream_transform.js")

1
node_modules/duplexify/node_modules/readable-stream/writable.js generated vendored Normal file
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@@ -0,0 +1 @@
module.exports = require("./lib/_stream_writable.js")

109
node_modules/duplexify/package.json generated vendored Normal file
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@@ -0,0 +1,109 @@
{
"_args": [
[
{
"raw": "duplexify@^3.5.0",
"scope": null,
"escapedName": "duplexify",
"name": "duplexify",
"rawSpec": "^3.5.0",
"spec": ">=3.5.0 <4.0.0",
"type": "range"
},
"D:\\web\\layui\\res\\layui\\node_modules\\ternary-stream"
]
],
"_from": "duplexify@>=3.5.0 <4.0.0",
"_id": "duplexify@3.5.0",
"_inCache": true,
"_location": "/duplexify",
"_nodeVersion": "4.6.1",
"_npmOperationalInternal": {
"host": "packages-12-west.internal.npmjs.com",
"tmp": "tmp/duplexify-3.5.0.tgz_1477317448157_0.2257942291907966"
},
"_npmUser": {
"name": "mafintosh",
"email": "mathiasbuus@gmail.com"
},
"_npmVersion": "2.15.9",
"_phantomChildren": {
"buffer-shims": "1.0.0",
"core-util-is": "1.0.2",
"inherits": "2.0.3",
"process-nextick-args": "1.0.7",
"string_decoder": "0.10.31",
"util-deprecate": "1.0.2",
"wrappy": "1.0.2"
},
"_requested": {
"raw": "duplexify@^3.5.0",
"scope": null,
"escapedName": "duplexify",
"name": "duplexify",
"rawSpec": "^3.5.0",
"spec": ">=3.5.0 <4.0.0",
"type": "range"
},
"_requiredBy": [
"/ternary-stream"
],
"_resolved": "https://registry.npmjs.org/duplexify/-/duplexify-3.5.0.tgz",
"_shasum": "1aa773002e1578457e9d9d4a50b0ccaaebcbd604",
"_shrinkwrap": null,
"_spec": "duplexify@^3.5.0",
"_where": "D:\\web\\layui\\res\\layui\\node_modules\\ternary-stream",
"author": {
"name": "Mathias Buus"
},
"bugs": {
"url": "https://github.com/mafintosh/duplexify/issues"
},
"dependencies": {
"end-of-stream": "1.0.0",
"inherits": "^2.0.1",
"readable-stream": "^2.0.0",
"stream-shift": "^1.0.0"
},
"description": "Turn a writable and readable stream into a streams2 duplex stream with support for async initialization and streams1/streams2 input",
"devDependencies": {
"concat-stream": "^1.4.6",
"tape": "^2.13.3",
"through2": "^0.5.1"
},
"directories": {},
"dist": {
"shasum": "1aa773002e1578457e9d9d4a50b0ccaaebcbd604",
"tarball": "https://registry.npmjs.org/duplexify/-/duplexify-3.5.0.tgz"
},
"gitHead": "97f525d36ce275e52435611d70b3a77a7234eaa1",
"homepage": "https://github.com/mafintosh/duplexify",
"keywords": [
"duplex",
"streams2",
"streams",
"stream",
"writable",
"readable",
"async"
],
"license": "MIT",
"main": "index.js",
"maintainers": [
{
"name": "mafintosh",
"email": "mathiasbuus@gmail.com"
}
],
"name": "duplexify",
"optionalDependencies": {},
"readme": "ERROR: No README data found!",
"repository": {
"type": "git",
"url": "git://github.com/mafintosh/duplexify.git"
},
"scripts": {
"test": "tape test.js"
},
"version": "3.5.0"
}

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node_modules/duplexify/test.js generated vendored Normal file
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var tape = require('tape')
var through = require('through2')
var concat = require('concat-stream')
var net = require('net')
var duplexify = require('./')
tape('passthrough', function(t) {
t.plan(2)
var pt = through()
var dup = duplexify(pt, pt)
dup.end('hello world')
dup.on('finish', function() {
t.ok(true, 'should finish')
})
dup.pipe(concat(function(data) {
t.same(data.toString(), 'hello world', 'same in as out')
}))
})
tape('passthrough + double end', function(t) {
t.plan(2)
var pt = through()
var dup = duplexify(pt, pt)
dup.end('hello world')
dup.end()
dup.on('finish', function() {
t.ok(true, 'should finish')
})
dup.pipe(concat(function(data) {
t.same(data.toString(), 'hello world', 'same in as out')
}))
})
tape('async passthrough + end', function(t) {
t.plan(2)
var pt = through.obj({highWaterMark:1}, function(data, enc, cb) {
setTimeout(function() {
cb(null, data)
}, 100)
})
var dup = duplexify(pt, pt)
dup.write('hello ')
dup.write('world')
dup.end()
dup.on('finish', function() {
t.ok(true, 'should finish')
})
dup.pipe(concat(function(data) {
t.same(data.toString(), 'hello world', 'same in as out')
}))
})
tape('duplex', function(t) {
var readExpected = ['read-a', 'read-b', 'read-c']
var writeExpected = ['write-a', 'write-b', 'write-c']
t.plan(readExpected.length+writeExpected.length+2)
var readable = through.obj()
var writable = through.obj(function(data, enc, cb) {
t.same(data, writeExpected.shift(), 'onwrite should match')
cb()
})
var dup = duplexify.obj(writable, readable)
readExpected.slice().forEach(function(data) {
readable.write(data)
})
readable.end()
writeExpected.slice().forEach(function(data) {
dup.write(data)
})
dup.end()
dup.on('data', function(data) {
t.same(data, readExpected.shift(), 'ondata should match')
})
dup.on('end', function() {
t.ok(true, 'should end')
})
dup.on('finish', function() {
t.ok(true, 'should finish')
})
})
tape('async', function(t) {
var dup = duplexify()
var pt = through()
dup.pipe(concat(function(data) {
t.same(data.toString(), 'i was async', 'same in as out')
t.end()
}))
dup.write('i')
dup.write(' was ')
dup.end('async')
setTimeout(function() {
dup.setWritable(pt)
setTimeout(function() {
dup.setReadable(pt)
}, 50)
}, 50)
})
tape('destroy', function(t) {
t.plan(2)
var write = through()
var read = through()
var dup = duplexify(write, read)
write.destroy = function() {
t.ok(true, 'write destroyed')
}
dup.on('close', function() {
t.ok(true, 'close emitted')
})
dup.destroy()
dup.destroy() // should only work once
})
tape('destroy both', function(t) {
t.plan(3)
var write = through()
var read = through()
var dup = duplexify(write, read)
write.destroy = function() {
t.ok(true, 'write destroyed')
}
read.destroy = function() {
t.ok(true, 'read destroyed')
}
dup.on('close', function() {
t.ok(true, 'close emitted')
})
dup.destroy()
dup.destroy() // should only work once
})
tape('bubble read errors', function(t) {
t.plan(2)
var write = through()
var read = through()
var dup = duplexify(write, read)
dup.on('error', function(err) {
t.same(err.message, 'read-error', 'received read error')
})
dup.on('close', function() {
t.ok(true, 'close emitted')
})
read.emit('error', new Error('read-error'))
write.emit('error', new Error('write-error')) // only emit first error
})
tape('bubble write errors', function(t) {
t.plan(2)
var write = through()
var read = through()
var dup = duplexify(write, read)
dup.on('error', function(err) {
t.same(err.message, 'write-error', 'received write error')
})
dup.on('close', function() {
t.ok(true, 'close emitted')
})
write.emit('error', new Error('write-error'))
read.emit('error', new Error('read-error')) // only emit first error
})
tape('reset writable / readable', function(t) {
t.plan(3)
var toUpperCase = function(data, enc, cb) {
cb(null, data.toString().toUpperCase())
}
var passthrough = through()
var upper = through(toUpperCase)
var dup = duplexify(passthrough, passthrough)
dup.once('data', function(data) {
t.same(data.toString(), 'hello')
dup.setWritable(upper)
dup.setReadable(upper)
dup.once('data', function(data) {
t.same(data.toString(), 'HELLO')
dup.once('data', function(data) {
t.same(data.toString(), 'HI')
t.end()
})
})
dup.write('hello')
dup.write('hi')
})
dup.write('hello')
})
tape('cork', function(t) {
var passthrough = through()
var dup = duplexify(passthrough, passthrough)
var ok = false
dup.on('prefinish', function() {
dup.cork()
setTimeout(function() {
ok = true
dup.uncork()
}, 100)
})
dup.on('finish', function() {
t.ok(ok)
t.end()
})
dup.end()
})
tape('prefinish not twice', function(t) {
var passthrough = through()
var dup = duplexify(passthrough, passthrough)
var prefinished = false
dup.on('prefinish', function() {
t.ok(!prefinished, 'only prefinish once')
prefinished = true
})
dup.on('finish', function() {
t.end()
})
dup.end()
})
tape('close', function(t) {
var passthrough = through()
var dup = duplexify(passthrough, passthrough)
var ok = false
passthrough.emit('close')
dup.on('close', function() {
t.ok(true, 'should forward close')
t.end()
})
})
tape('works with node native streams (net)', function(t) {
t.plan(1)
var server = net.createServer(function(socket) {
var dup = duplexify(socket, socket)
dup.once('data', function(chunk) {
t.same(chunk, Buffer('hello world'))
server.close()
socket.end()
t.end()
})
})
server.listen(0, function () {
var socket = net.connect(server.address().port)
var dup = duplexify(socket, socket)
dup.write(Buffer('hello world'))
})
})