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 | 364 |
1 files changed, 180 insertions, 184 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 b3f4e85a2f..9abbad6bc2 100644 --- a/deps/npm/node_modules/readable-stream/lib/_stream_writable.js +++ b/deps/npm/node_modules/readable-stream/lib/_stream_writable.js @@ -18,35 +18,29 @@ // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE // USE OR OTHER DEALINGS IN THE SOFTWARE. - // A 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'; -/*<replacement>*/ - -var pna = require('process-nextick-args'); -/*</replacement>*/ - module.exports = Writable; - /* <replacement> */ + function WriteReq(chunk, encoding, cb) { this.chunk = chunk; this.encoding = encoding; this.callback = cb; this.next = null; -} - -// It seems a linked list but it is not +} // 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 () { onCorkedFinish(_this, state); }; @@ -54,266 +48,243 @@ function CorkedRequest(state) { /* </replacement> */ /*<replacement>*/ -var asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick; -/*</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 = require('./internal/streams/stream'); /*</replacement>*/ -/*<replacement>*/ -var Buffer = require('safe-buffer').Buffer; +var Buffer = require('buffer').Buffer; + var OurUint8Array = global.Uint8Array || function () {}; + function _uint8ArrayToBuffer(chunk) { return Buffer.from(chunk); } + function _isUint8Array(obj) { return Buffer.isBuffer(obj) || obj instanceof OurUint8Array; } -/*</replacement>*/ - var destroyImpl = require('./internal/streams/destroy'); -util.inherits(Writable, Stream); +var _require = require('./internal/streams/state'), + getHighWaterMark = _require.getHighWaterMark; -function nop() {} +var _require$codes = require('../errors').codes, + ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE, + ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED, + ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK, + ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE, + ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED, + ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES, + ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END, + ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING; -function WritableState(options, stream) { - Duplex = Duplex || require('./_stream_duplex'); +require('inherits')(Writable, Stream); - options = options || {}; +function nop() {} - // Duplex streams are both readable and writable, but share +function WritableState(options, stream, isDuplex) { + Duplex = Duplex || require('./_stream_duplex'); + options = options || {}; // Duplex streams are both readable and writable, but share // the same options object. // However, some cases require setting options to different // values for the readable and the writable sides of the duplex stream. // These options can be provided separately as readableXXX and writableXXX. - var isDuplex = stream instanceof Duplex; - // object stream flag to indicate whether or not this stream + if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag to indicate whether or not this stream // contains buffers or objects. - this.objectMode = !!options.objectMode; - if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; - - // the point at which write() starts returning false + this.objectMode = !!options.objectMode; + if (isDuplex) 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 writableHwm = options.writableHighWaterMark; - var defaultHwm = this.objectMode ? 16 : 16 * 1024; - if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm; + this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex); // if _final has been called - // cast to ints. - this.highWaterMark = Math.floor(this.highWaterMark); + this.finalCalled = false; // drain event flag. - // if _final has been called - this.finalCalled = false; + this.needDrain = false; // at the start of calling end() - // 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; + this.ending = false; // when end() has been called, and returned - // has it been destroyed - this.destroyed = false; + this.ended = false; // when 'finish' is emitted - // should we decode strings into buffers before passing to _write? + this.finished = false; // has it been destroyed + + this.destroyed = 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 + 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 + 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; + this.length = 0; // a flag to see when we're in the middle of a write. - // when true all writes will be buffered until .uncork() call - this.corked = 0; + this.writing = false; // when true all writes will be buffered until .uncork() call - // a flag to be able to tell if the onwrite cb is called immediately, + 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 + 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.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) - // 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.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.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.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; + this.prefinished = false; // True if the error was already emitted and should not be thrown again + + this.errorEmitted = false; // Should close be emitted on destroy. Defaults to true. - // count buffered requests - this.bufferedRequestCount = 0; + this.emitClose = options.emitClose !== false; // count buffered requests - // allocate the first CorkedRequest, there is always + 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 () { + get: internalUtil.deprecate(function writableStateBufferGetter() { return this.getBuffer(); }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003') }); } catch (_) {} -})(); - -// Test _writableState for inheritance to account for Duplex streams, +})(); // 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) { + value: function value(object) { if (realHasInstance.call(this, object)) return true; if (this !== Writable) return false; - return object && object._writableState instanceof WritableState; } }); } else { - realHasInstance = function (object) { + realHasInstance = function realHasInstance(object) { return object instanceof this; }; } function Writable(options) { - Duplex = Duplex || require('./_stream_duplex'); - - // Writable ctor is applied to Duplexes, too. + 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); - } + // Checking for a Stream.Duplex instance is faster here instead of inside + // the WritableState constructor, at least with V8 6.5 - this._writableState = new WritableState(options, this); + var isDuplex = this instanceof Duplex; + if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options); + this._writableState = new WritableState(options, this, isDuplex); // legacy. - // legacy. this.writable = true; if (options) { if (typeof options.write === 'function') this._write = options.write; - if (typeof options.writev === 'function') this._writev = options.writev; - if (typeof options.destroy === 'function') this._destroy = options.destroy; - if (typeof options.final === 'function') this._final = options.final; } Stream.call(this); -} +} // Otherwise people can pipe Writable streams, which is just wrong. + -// 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 ERR_STREAM_CANNOT_PIPE()); }; 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); - pna.nextTick(cb, er); -} + var er = new ERR_STREAM_WRITE_AFTER_END(); // TODO: defer error events consistently everywhere, not just the cb -// Checks that a user-supplied chunk is valid, especially for the particular + stream.emit('error', er); + process.nextTick(cb, er); +} // Checks that a user-supplied chunk is valid, especially for the particular // mode the stream is in. Currently this means that `null` is never accepted // and undefined/non-string values are only allowed in object mode. + + function validChunk(stream, state, chunk, cb) { - var valid = true; - var er = false; + var er; if (chunk === null) { - er = new TypeError('May not write null values to stream'); - } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) { - er = new TypeError('Invalid non-string/buffer chunk'); + er = new ERR_STREAM_NULL_VALUES(); + } else if (typeof chunk !== 'string' && !state.objectMode) { + er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk); } + if (er) { stream.emit('error', er); - pna.nextTick(cb, er); - valid = false; + process.nextTick(cb, er); + return false; } - return valid; + + return true; } Writable.prototype.write = function (chunk, encoding, cb) { var state = this._writableState; var ret = false; + var isBuf = !state.objectMode && _isUint8Array(chunk); if (isBuf && !Buffer.isBuffer(chunk)) { @@ -326,21 +297,16 @@ Writable.prototype.write = function (chunk, encoding, cb) { } if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding; - if (typeof cb !== 'function') cb = nop; - - if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) { + if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) { state.pendingcb++; ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb); } - return ret; }; Writable.prototype.cork = function () { - var state = this._writableState; - - state.corked++; + this._writableState.corked++; }; Writable.prototype.uncork = function () { @@ -348,23 +314,33 @@ Writable.prototype.uncork = function () { if (state.corked) { state.corked--; - - if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state); + if (!state.writing && !state.corked && !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); + if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding); this._writableState.defaultEncoding = encoding; return this; }; +Object.defineProperty(Writable.prototype, 'writableBuffer', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._writableState && this._writableState.getBuffer(); + } +}); + function decodeChunk(state, chunk, encoding) { if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') { chunk = Buffer.from(chunk, encoding); } + return chunk; } @@ -373,29 +349,28 @@ Object.defineProperty(Writable.prototype, 'writableHighWaterMark', { // because otherwise some prototype manipulation in // userland will fail enumerable: false, - get: function () { + get: function get() { return this._writableState.highWaterMark; } -}); - -// if we're already writing something, then just put this +}); // 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, isBuf, chunk, encoding, cb) { if (!isBuf) { var newChunk = decodeChunk(state, chunk, encoding); + if (chunk !== newChunk) { isBuf = true; encoding = 'buffer'; chunk = newChunk; } } - var len = state.objectMode ? 1 : chunk.length; + 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. - 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) { @@ -407,11 +382,13 @@ function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) { callback: cb, next: null }; + if (last) { last.next = state.lastBufferedRequest; } else { state.bufferedRequest = state.lastBufferedRequest; } + state.bufferedRequestCount += 1; } else { doWrite(stream, state, false, len, chunk, encoding, cb); @@ -425,7 +402,7 @@ function doWrite(stream, state, writev, len, chunk, encoding, cb) { state.writecb = cb; state.writing = true; state.sync = true; - if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite); + if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite); state.sync = false; } @@ -435,10 +412,10 @@ function onwriteError(stream, state, sync, er, cb) { if (sync) { // defer the callback if we are being called synchronously // to avoid piling up things on the stack - pna.nextTick(cb, er); - // this can emit finish, and it will always happen + process.nextTick(cb, er); // this can emit finish, and it will always happen // after error - pna.nextTick(finishMaybe, stream, state); + + process.nextTick(finishMaybe, stream, state); stream._writableState.errorEmitted = true; stream.emit('error', er); } else { @@ -446,9 +423,9 @@ function onwriteError(stream, state, sync, er, cb) { // it is async cb(er); stream._writableState.errorEmitted = true; - stream.emit('error', er); - // this can emit finish, but finish must + stream.emit('error', er); // this can emit finish, but finish must // always follow error + finishMaybe(stream, state); } } @@ -464,9 +441,8 @@ function onwrite(stream, er) { var state = stream._writableState; var sync = state.sync; var cb = state.writecb; - + if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK(); 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); @@ -476,9 +452,7 @@ function onwrite(stream, er) { } if (sync) { - /*<replacement>*/ - asyncWrite(afterWrite, stream, state, finished, cb); - /*</replacement>*/ + process.nextTick(afterWrite, stream, state, finished, cb); } else { afterWrite(stream, state, finished, cb); } @@ -490,19 +464,19 @@ function afterWrite(stream, state, finished, cb) { state.pendingcb--; cb(); finishMaybe(stream, state); -} - -// Must force callback to be called on nextTick, so that we don't +} // 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 + -// if there's something in the buffer waiting, then process it function clearBuffer(stream, state) { state.bufferProcessing = true; var entry = state.bufferedRequest; @@ -513,29 +487,30 @@ function clearBuffer(stream, state) { var buffer = new Array(l); var holder = state.corkedRequestsFree; holder.entry = entry; - var count = 0; var allBuffers = true; + while (entry) { buffer[count] = entry; if (!entry.isBuf) allBuffers = false; entry = entry.next; count += 1; } - buffer.allBuffers = allBuffers; - - doWrite(stream, state, true, state.length, buffer, '', holder.finish); - // doWrite is almost always async, defer these to save a bit of time + buffer.allBuffers = allBuffers; + 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); } + state.bufferedRequestCount = 0; } else { // Slow case, write chunks one-by-one @@ -544,14 +519,13 @@ function clearBuffer(stream, state) { 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; - state.bufferedRequestCount--; - // if we didn't call the onwrite immediately, then + state.bufferedRequestCount--; // 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; } @@ -565,7 +539,7 @@ function clearBuffer(stream, state) { } Writable.prototype._write = function (chunk, encoding, cb) { - cb(new Error('_write() is not implemented')); + cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()')); }; Writable.prototype._writev = null; @@ -582,38 +556,52 @@ Writable.prototype.end = function (chunk, encoding, cb) { encoding = null; } - if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); + if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); // .end() fully uncorks - // .end() fully uncorks if (state.corked) { state.corked = 1; this.uncork(); - } + } // ignore unnecessary end() calls. + - // ignore unnecessary end() calls. - if (!state.ending && !state.finished) endWritable(this, state, cb); + if (!state.ending) endWritable(this, state, cb); + return this; }; +Object.defineProperty(Writable.prototype, 'writableLength', { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { + return this._writableState.length; + } +}); + function needFinish(state) { return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing; } + function callFinal(stream, state) { stream._final(function (err) { state.pendingcb--; + if (err) { stream.emit('error', err); } + state.prefinished = true; stream.emit('prefinish'); finishMaybe(stream, state); }); } + function prefinish(stream, state) { if (!state.prefinished && !state.finalCalled) { - if (typeof stream._final === 'function') { + if (typeof stream._final === 'function' && !state.destroyed) { state.pendingcb++; state.finalCalled = true; - pna.nextTick(callFinal, stream, state); + process.nextTick(callFinal, stream, state); } else { state.prefinished = true; stream.emit('prefinish'); @@ -623,22 +611,27 @@ function prefinish(stream, state) { function finishMaybe(stream, state) { var need = needFinish(state); + if (need) { prefinish(stream, state); + if (state.pendingcb === 0) { state.finished = true; stream.emit('finish'); } } + return need; } function endWritable(stream, state, cb) { state.ending = true; finishMaybe(stream, state); + if (cb) { - if (state.finished) pna.nextTick(cb);else stream.once('finish', cb); + if (state.finished) process.nextTick(cb);else stream.once('finish', cb); } + state.ended = true; stream.writable = false; } @@ -646,42 +639,45 @@ function endWritable(stream, state, cb) { function onCorkedFinish(corkReq, state, err) { var entry = corkReq.entry; corkReq.entry = null; + while (entry) { var cb = entry.callback; state.pendingcb--; cb(err); entry = entry.next; - } - if (state.corkedRequestsFree) { - state.corkedRequestsFree.next = corkReq; - } else { - state.corkedRequestsFree = corkReq; - } + } // reuse the free corkReq. + + + state.corkedRequestsFree.next = corkReq; } Object.defineProperty(Writable.prototype, 'destroyed', { - get: function () { + // making it explicit this property is not enumerable + // because otherwise some prototype manipulation in + // userland will fail + enumerable: false, + get: function get() { if (this._writableState === undefined) { return false; } + return this._writableState.destroyed; }, - set: function (value) { + set: function set(value) { // we ignore the value if the stream // has not been initialized yet if (!this._writableState) { return; - } - - // backward compatibility, the user is explicitly + } // backward compatibility, the user is explicitly // managing destroyed + + this._writableState.destroyed = value; } }); - Writable.prototype.destroy = destroyImpl.destroy; Writable.prototype._undestroy = destroyImpl.undestroy; + Writable.prototype._destroy = function (err, cb) { - this.end(); cb(err); };
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