diff options
Diffstat (limited to 'deps/npm/node_modules/readable-stream/lib/_stream_writable.js')
-rw-r--r-- | deps/npm/node_modules/readable-stream/lib/_stream_writable.js | 40 |
1 files changed, 25 insertions, 15 deletions
diff --git a/deps/npm/node_modules/readable-stream/lib/_stream_writable.js b/deps/npm/node_modules/readable-stream/lib/_stream_writable.js index 95916c992a..ed5efcbd20 100644 --- a/deps/npm/node_modules/readable-stream/lib/_stream_writable.js +++ b/deps/npm/node_modules/readable-stream/lib/_stream_writable.js @@ -14,10 +14,6 @@ var processNextTick = require('process-nextick-args'); var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : processNextTick; /*</replacement>*/ -/*<replacement>*/ -var Buffer = require('buffer').Buffer; -/*</replacement>*/ - Writable.WritableState = WritableState; /*<replacement>*/ @@ -43,6 +39,9 @@ var Stream; /*</replacement>*/ var Buffer = require('buffer').Buffer; +/*<replacement>*/ +var bufferShim = require('buffer-shims'); +/*</replacement>*/ util.inherits(Writable, Stream); @@ -146,10 +145,9 @@ function WritableState(options, stream) { // count buffered requests this.bufferedRequestCount = 0; - // create the two objects needed to store the corked requests - // they are not a linked list, as no new elements are inserted in there + // allocate the first CorkedRequest, there is always + // one allocated and free to use, and we maintain at most two this.corkedRequestsFree = new CorkedRequest(this); - this.corkedRequestsFree.next = new CorkedRequest(this); } WritableState.prototype.getBuffer = function writableStateGetBuffer() { @@ -196,7 +194,7 @@ function Writable(options) { // Otherwise people can pipe Writable streams, which is just wrong. Writable.prototype.pipe = function () { - this.emit('error', new Error('Cannot pipe. Not readable.')); + this.emit('error', new Error('Cannot pipe, not readable')); }; function writeAfterEnd(stream, cb) { @@ -213,9 +211,16 @@ function writeAfterEnd(stream, cb) { // how many bytes or characters. function validChunk(stream, state, chunk, cb) { var valid = true; - - if (!Buffer.isBuffer(chunk) && typeof chunk !== 'string' && chunk !== null && chunk !== undefined && !state.objectMode) { - var er = new TypeError('Invalid non-string/buffer chunk'); + 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; @@ -265,11 +270,12 @@ Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) { 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 = new Buffer(chunk, encoding); + chunk = bufferShim.from(chunk, encoding); } return chunk; } @@ -392,12 +398,16 @@ function clearBuffer(stream, state) { doWrite(stream, state, true, state.length, buffer, '', holder.finish); - // doWrite is always async, defer these to save a bit of time + // 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; - state.corkedRequestsFree = holder.next; - holder.next = 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) { |