| 407 | "use strict";function WriteReq(e,t,r){this.chunk=e,this.encoding=t,this.callback=r,this.next=null}function CorkedRequest(e){var t=this;this.next=null,this.entry=null,this.finish=function(){onCorkedFinish(t,e)}}function _uint8ArrayToBuffer(e){return Buffer.from(e)}function _isUint8Array(e){return Buffer.isBuffer(e)||e instanceof OurUint8Array}function nop(){}function WritableState(e,t){Duplex=Duplex||require("./_stream_duplex"),e=e||{};var r=t instanceof Duplex;this.objectMode=!!e.objectMode,r&&(this.objectMode=this.objectMode||!!e.writableObjectMode);var i=e.highWaterMark,n=e.writableHighWaterMark,o=this.objectMode?16:16384;this.highWaterMark=i||0===i?i:r&&(n||0===n)?n:o,this.highWaterMark=Math.floor(this.highWaterMark),this.finalCalled=!1,this.needDrain=!1,this.ending=!1,this.ended=!1,this.finished=!1,this.destroyed=!1;var a=!1===e.decodeStrings;this.decodeStrings=!a,this.defaultEncoding=e.defaultEncoding||"utf8",this.length=0,this.writing=!1,this.corked=0,this.sync=!0,this.bufferProcessing=!1,this.onwrite=function(e){onwrite(t,e)},this.writecb=null,this.writelen=0,this.bufferedRequest=null,this.lastBufferedRequest=null,this.pendingcb=0,this.prefinished=!1,this.errorEmitted=!1,this.bufferedRequestCount=0,this.corkedRequestsFree=new CorkedRequest(this)}function Writable(e){if(Duplex=Duplex||require("./_stream_duplex"),!(realHasInstance.call(Writable,this)||this instanceof Duplex))return new Writable(e);this._writableState=new WritableState(e,this),this.writable=!0,e&&("function"==typeof e.write&&(this._write=e.write),"function"==typeof e.writev&&(this._writev=e.writev),"function"==typeof e.destroy&&(this._destroy=e.destroy),"function"==typeof e.final&&(this._final=e.final)),Stream.call(this)}function writeAfterEnd(e,t){var r=new Error("write after end");e.emit("error",r),pna.nextTick(t,r)}function validChunk(e,t,r,i){var n=!0,o=!1;return null===r?o=new TypeError("May not write null values to stream"):"string"==typeof r||void 0===r||t.objectMode||(o=new TypeError("Invalid non-string/buffer chunk")),o&&(e.emit("error",o),pna.nextTick(i,o),n=!1),n}function decodeChunk(e,t,r){return e.objectMode||!1===e.decodeStrings||"string"!=typeof t||(t=Buffer.from(t,r)),t}function writeOrBuffer(e,t,r,i,n,o){if(!r){var a=decodeChunk(t,i,n);i!==a&&(r=!0,n="buffer",i=a)}var s=t.objectMode?1:i.length;t.length+=s;var f=t.length<t.highWaterMark;if(f||(t.needDrain=!0),t.writing||t.corked){var u=t.lastBufferedRequest;t.lastBufferedRequest={chunk:i,encoding:n,isBuf:r,callback:o,next:null},u?u.next=t.lastBufferedRequest:t.bufferedRequest=t.lastBufferedRequest,t.bufferedRequestCount+=1}else doWrite(e,t,!1,s,i,n,o);return f}function doWrite(e,t,r,i,n,o,a){t.writelen=i,t.writecb=a,t.writing=!0,t.sync=!0,r?e._writev(n,t.onwrite):e._write(n,o,t.onwrite),t.sync=!1}function onwriteError(e,t,r,i,n){--t.pendingcb,r?(pna.nextTick(n,i),pna.nextTick(finishMaybe,e,t),e._writableState.errorEmitted=!0,e.emit("error",i)):(n(i),e._writableState.errorEmitted=!0,e.emit("error",i),finishMaybe(e,t))}function onwriteStateUpdate(e){e.writing=!1,e.writecb=null,e.length-=e.writelen,e.writelen=0}function onwrite(e,t){var r=e._writableState,i=r.sync,n=r.writecb;if(onwriteStateUpdate(r),t)onwriteError(e,r,i,t,n);else{var o=needFinish(r);o||r.corked||r.bufferProcessing||!r.bufferedRequest||clearBuffer(e,r),i?asyncWrite(afterWrite,e,r,o,n):afterWrite(e,r,o,n)}}function afterWrite(e,t,r,i){r||onwriteDrain(e,t),t.pendingcb--,i(),finishMaybe(e,t)}function onwriteDrain(e,t){0===t.length&&t.needDrain&&(t.needDrain=!1,e.emit("drain"))}function clearBuffer(e,t){t.bufferProcessing=!0;var r=t.bufferedRequest;if(e._writev&&r&&r.next){var i=t.bufferedRequestCount,n=new Array(i),o=t.corkedRequestsFree;o.entry=r;for(var a=0,s=!0;r;)n[a]=r,r.isBuf||(s=!1),r=r.next,a+=1;n.allBuffers=s,doWrite(e,t,!0,t.length,n,"",o.finish),t.pendingcb++,t.lastBufferedRequest=null,o.next?(t.corkedRequestsFree=o.next,o.next=null):t.corkedRequestsFree=new CorkedRequest(t),t.bufferedRequestCount=0}else{for(;r;){var f=r.chunk,u=r.encoding,l=r.callback;if(doWrite(e,t,!1,t.objectMode?1:f.length,f,u,l),r=r.next,t.bufferedRequestCount--,t.writing)break}null===r&&(t.lastBufferedRequest=null)}t.bufferedRequest=r,t.bufferProcessing=!1}function needFinish(e){return e.ending&&0===e.length&&null===e.bufferedRequest&&!e.finished&&!e.writing}function callFinal(e,t){e._final(function(r){t.pendingcb--,r&&e.emit("error",r),t.prefinished=!0,e.emit("prefinish"),finishMaybe(e,t)})}function prefinish(e,t){t.prefinished||t.finalCalled||("function"==typeof e._final?(t.pendingcb++,t.finalCalled=!0,pna.nextTick(callFinal,e,t)):(t.prefinished=!0,e.emit("prefinish")))}function finishMaybe(e,t){var r=needFinish(t);return r&&(prefinish(e,t),0===t.pendingcb&&(t.finished=!0,e.emit("finish"))),r}function endWritable(e,t,r){t.ending=!0,finishMaybe(e,t),r&&(t.finished?pna.nextTick(r):e.once("finish",r)),t.ended=!0,e.writable=!1}function onCorkedFinish(e,t,r){var i=e.entry;for(e.entry=null;i;){var n=i.callback;t.pendingcb--,n(r),i=i.next}t.corkedRequestsFree?t.corkedRequestsFree.next=e:t.corkedRequestsFree=e}var pna=require("process-nextick-args");module.exports=Writable;var asyncWrite=!process.browser&&["v0.10","v0.9."].indexOf(process.version.slice(0,5))>-1?setImmediate:pna.nextTick,Duplex;Writable.WritableState=WritableState;var util=require("core-util-is");util.inherits=require("inherits");var internalUtil={deprecate:require("util-deprecate")},Stream=require("./internal/streams/stream"),Buffer=require("safe-buffer").Buffer,OurUint8Array=global.Uint8Array||function(){},destroyImpl=require("./internal/streams/destroy");util.inherits(Writable,Stream),WritableState.prototype.getBuffer=function(){for(var e=this.bufferedRequest,t=[];e;)t.push(e),e=e.next;return t},function(){try{Object.defineProperty(WritableState.prototype,"buffer",{get:internalUtil.deprecate(function(){return this.getBuffer()},"_writableState.buffer is deprecated. Use _writableState.getBuffer instead.","DEP0003")})}catch(e){}}();var realHasInstance;"function"==typeof Symbol&&Symbol.hasInstance&&"function"==typeof Function.prototype[Symbol.hasInstance]?(realHasInstance=Function.prototype[Symbol.hasInstance],Object.defineProperty(Writable,Symbol.hasInstance,{value:function(e){return!!realHasInstance.call(this,e)||this===Writable&&(e&&e._writableState instanceof WritableState)}})):realHasInstance=function(e){return e instanceof this},Writable.prototype.pipe=function(){this.emit("error",new Error("Cannot pipe, not readable"))},Writable.prototype.write=function(e,t,r){var i=this._writableState,n=!1,o=!i.objectMode&&_isUint8Array(e);return o&&!Buffer.isBuffer(e)&&(e=_uint8ArrayToBuffer(e)),"function"==typeof t&&(r=t,t=null),o?t="buffer":t||(t=i.defaultEncoding),"function"!=typeof r&&(r=nop),i.ended?writeAfterEnd(this,r):(o||validChunk(this,i,e,r))&&(i.pendingcb++,n=writeOrBuffer(this,i,o,e,t,r)),n},Writable.prototype.cork=function(){this._writableState.corked++},Writable.prototype.uncork=function(){var e=this._writableState;e.corked&&(e.corked--,e.writing||e.corked||e.finished||e.bufferProcessing||!e.bufferedRequest||clearBuffer(this,e))},Writable.prototype.setDefaultEncoding=function(e){if("string"==typeof e&&(e=e.toLowerCase()),!(["hex","utf8","utf-8","ascii","binary","base64","ucs2","ucs-2","utf16le","utf-16le","raw"].indexOf((e+"").toLowerCase())>-1))throw new TypeError("Unknown encoding: "+e);return this._writableState.defaultEncoding=e,this},Object.defineProperty(Writable.prototype,"writableHighWaterMark",{enumerable:!1,get:function(){return this._writableState.highWaterMark}}),Writable.prototype._write=function(e,t,r){r(new Error("_write() is not implemented"))},Writable.prototype._writev=null,Writable.prototype.end=function(e,t,r){var i=this._writableState;"function"==typeof e?(r=e,e=null,t=null):"function"==typeof t&&(r=t,t=null),null!==e&&void 0!==e&&this.write(e,t),i.corked&&(i.corked=1,this.uncork()),i.ending||i.finished||endWritable(this,i,r)},Object.defineProperty(Writable.prototype,"destroyed",{get:function(){return void 0!==this._writableState&&this._writableState.destroyed},set:function(e){this._writableState&&(this._writableState.destroyed=e)}}),Writable.prototype.destroy=destroyImpl.destroy,Writable.prototype._undestroy=destroyImpl.undestroy,Writable.prototype._destroy=function(e,t){this.end(),t(e)}; |