{"version":3,"sources":["webpack:///./node_modules/readable-stream/lib/_stream_duplex.js","webpack:///./node_modules/readable-stream/readable-browser.js","webpack:///./node_modules/readable-stream/lib/_stream_writable.js","webpack:///./node_modules/readable-stream/lib/_stream_readable.js","webpack:///./node_modules/readable-stream/lib/internal/streams/stream-browser.js","webpack:///./node_modules/readable-stream/lib/internal/streams/destroy.js","webpack:///./node_modules/readable-stream/lib/_stream_transform.js","webpack:///./node_modules/readable-stream/node_modules/isarray/index.js","webpack:///./node_modules/readable-stream/lib/internal/streams/BufferList.js","webpack:///./node_modules/readable-stream/lib/_stream_passthrough.js","webpack:///./node_modules/readable-stream/writable-browser.js","webpack:///./node_modules/readable-stream/duplex-browser.js","webpack:///./node_modules/readable-stream/transform.js","webpack:///./node_modules/readable-stream/passthrough.js"],"names":["pna","objectKeys","Object","keys","obj","key","push","module","exports","Duplex","util","inherits","Readable","Writable","prototype","v","length","method","options","this","call","readable","writable","allowHalfOpen","once","onend","_writableState","ended","nextTick","onEndNT","self","end","defineProperty","enumerable","get","highWaterMark","undefined","_readableState","destroyed","set","value","_destroy","err","cb","Stream","Transform","PassThrough","CorkedRequest","state","_this","next","entry","finish","corkReq","callback","pendingcb","corkedRequestsFree","onCorkedFinish","asyncWrite","process","browser","indexOf","version","slice","setImmediate","WritableState","internalUtil","deprecate","Buffer","OurUint8Array","global","Uint8Array","realHasInstance","destroyImpl","nop","stream","isDuplex","objectMode","writableObjectMode","hwm","writableHwm","writableHighWaterMark","defaultHwm","Math","floor","finalCalled","needDrain","ending","finished","noDecode","decodeStrings","defaultEncoding","writing","corked","sync","bufferProcessing","onwrite","er","writecb","writelen","onwriteStateUpdate","finishMaybe","errorEmitted","emit","onwriteError","needFinish","bufferedRequest","clearBuffer","afterWrite","lastBufferedRequest","prefinished","bufferedRequestCount","write","_write","writev","_writev","destroy","final","_final","doWrite","len","chunk","encoding","onwriteDrain","l","buffer","Array","holder","count","allBuffers","isBuf","callFinal","need","prefinish","getBuffer","current","out","_","Symbol","hasInstance","Function","object","pipe","Error","ret","isBuffer","from","_uint8ArrayToBuffer","writeAfterEnd","valid","TypeError","validChunk","newChunk","decodeChunk","last","writeOrBuffer","cork","uncork","setDefaultEncoding","toLowerCase","endWritable","_undestroy","undestroy","isArray","ReadableState","EventEmitter","EElistenerCount","emitter","type","listeners","debugUtil","debug","debuglog","StringDecoder","BufferList","kProxyEvents","readableObjectMode","readableHwm","readableHighWaterMark","pipes","pipesCount","flowing","endEmitted","reading","needReadable","emittedReadable","readableListening","resumeScheduled","awaitDrain","readingMore","decoder","read","_read","readableAddChunk","addToFront","skipChunkCheck","emitReadable","onEofChunk","chunkInvalid","getPrototypeOf","addChunk","maybeReadMore","needMoreData","unshift","isPaused","setEncoding","enc","howMuchToRead","n","head","data","computeNewHighWaterMark","emitReadable_","flow","maybeReadMore_","nReadingNextTick","resume_","fromList","shift","join","concat","clear","list","hasStrings","p","c","str","nb","tail","copyFromBufferString","allocUnsafe","copy","buf","copyFromBuffer","fromListPartial","endReadable","endReadableNT","xs","x","i","parseInt","nOrig","doRead","dest","pipeOpts","src","endFn","stdout","stderr","unpipe","onunpipe","unpipeInfo","hasUnpiped","removeListener","onclose","onfinish","ondrain","onerror","ondata","cleanedUp","on","pipeOnDrain","increasedAwaitDrain","pause","event","fn","prependListener","_events","resume","dests","index","splice","ev","res","addListener","wrap","paused","apply","arguments","bind","_fromList","emitErrorNT","readableDestroyed","writableDestroyed","afterTransform","ts","_transformState","transforming","writechunk","rs","needTransform","writeencoding","transform","_transform","flush","_flush","done","_this2","err2","toString","arr","instance","Constructor","_classCallCheck","s","alloc","target","offset","inspect","custom","constructor","name"],"mappings":"2FA8BA,IAAIA,EAAM,EAAQ,KAIdC,EAAaC,OAAOC,MAAQ,SAAUC,GACxC,IAAID,EAAO,GACX,IAAK,IAAIE,KAAOD,EACdD,EAAKG,KAAKD,GACX,OAAOF,GAIVI,EAAOC,QAAUC,EAGjB,IAAIC,EAAO,EAAQ,KACnBA,EAAKC,SAAW,EAAQ,IAGxB,IAAIC,EAAW,EAAQ,KACnBC,EAAW,EAAQ,KAEvBH,EAAKC,SAASF,EAAQG,GAKpB,IADA,IAAIT,EAAOF,EAAWY,EAASC,WACtBC,EAAI,EAAGA,EAAIZ,EAAKa,OAAQD,IAAK,CACpC,IAAIE,EAASd,EAAKY,GACbN,EAAOK,UAAUG,KAASR,EAAOK,UAAUG,GAAUJ,EAASC,UAAUG,IAIjF,SAASR,EAAOS,GACd,KAAMC,gBAAgBV,GAAS,OAAO,IAAIA,EAAOS,GAEjDN,EAASQ,KAAKD,KAAMD,GACpBL,EAASO,KAAKD,KAAMD,GAEhBA,IAAgC,IAArBA,EAAQG,WAAoBF,KAAKE,UAAW,GAEvDH,IAAgC,IAArBA,EAAQI,WAAoBH,KAAKG,UAAW,GAE3DH,KAAKI,eAAgB,EACjBL,IAAqC,IAA1BA,EAAQK,gBAAyBJ,KAAKI,eAAgB,GAErEJ,KAAKK,KAAK,MAAOC,GAcnB,SAASA,IAGHN,KAAKI,eAAiBJ,KAAKO,eAAeC,OAI9C3B,EAAI4B,SAASC,EAASV,MAGxB,SAASU,EAAQC,GACfA,EAAKC,MAtBP7B,OAAO8B,eAAevB,EAAOK,UAAW,wBAAyB,CAI/DmB,YAAY,EACZC,IAAK,WACH,OAAOf,KAAKO,eAAeS,iBAmB/BjC,OAAO8B,eAAevB,EAAOK,UAAW,YAAa,CACnDoB,IAAK,WACH,YAA4BE,IAAxBjB,KAAKkB,qBAAwDD,IAAxBjB,KAAKO,iBAGvCP,KAAKkB,eAAeC,WAAanB,KAAKO,eAAeY,YAE9DC,IAAK,SAAUC,QAGeJ,IAAxBjB,KAAKkB,qBAAwDD,IAAxBjB,KAAKO,iBAM9CP,KAAKkB,eAAeC,UAAYE,EAChCrB,KAAKO,eAAeY,UAAYE,MAIpC/B,EAAOK,UAAU2B,SAAW,SAAUC,EAAKC,GACzCxB,KAAKb,KAAK,MACVa,KAAKY,MAEL/B,EAAI4B,SAASe,EAAID,K,qBCjInBlC,EAAUD,EAAOC,QAAU,EAAQ,MAC3BoC,OAASpC,EACjBA,EAAQI,SAAWJ,EACnBA,EAAQK,SAAW,EAAQ,KAC3BL,EAAQC,OAAS,EAAQ,KACzBD,EAAQqC,UAAY,EAAQ,KAC5BrC,EAAQsC,YAAc,EAAQ,M,kCCN9B,gBA6BA,IAAI9C,EAAM,EAAQ,KAelB,SAAS+C,EAAcC,GACrB,IAAIC,EAAQ9B,KAEZA,KAAK+B,KAAO,KACZ/B,KAAKgC,MAAQ,KACbhC,KAAKiC,OAAS,YAolBhB,SAAwBC,EAASL,EAAON,GACtC,IAAIS,EAAQE,EAAQF,MACpBE,EAAQF,MAAQ,KAChB,KAAOA,GAAO,CACZ,IAAIR,EAAKQ,EAAMG,SACfN,EAAMO,YACNZ,EAAGD,GACHS,EAAQA,EAAMD,KAEZF,EAAMQ,mBACRR,EAAMQ,mBAAmBN,KAAOG,EAEhCL,EAAMQ,mBAAqBH,EA/lB3BI,CAAeR,EAAOD,IAlB1BzC,EAAOC,QAAUK,EAwBjB,IAIIJ,EAJAiD,GAAcC,EAAQC,SAAW,CAAC,QAAS,SAASC,QAAQF,EAAQG,QAAQC,MAAM,EAAG,KAAO,EAAIC,EAAehE,EAAI4B,SAOvHf,EAASoD,cAAgBA,EAGzB,IAAIvD,EAAO,EAAQ,KACnBA,EAAKC,SAAW,EAAQ,IAIxB,IAAIuD,EAAe,CACjBC,UAAW,EAAQ,MAKjBvB,EAAS,EAAQ,KAKjBwB,EAAS,EAAQ,IAAeA,OAChCC,EAAgBC,EAAOC,YAAc,aAUzC,IA2IIC,EA3IAC,EAAc,EAAQ,KAI1B,SAASC,KAET,SAAST,EAAc/C,EAASyD,GAC9BlE,EAASA,GAAU,EAAQ,KAE3BS,EAAUA,GAAW,GAOrB,IAAI0D,EAAWD,aAAkBlE,EAIjCU,KAAK0D,aAAe3D,EAAQ2D,WAExBD,IAAUzD,KAAK0D,WAAa1D,KAAK0D,cAAgB3D,EAAQ4D,oBAK7D,IAAIC,EAAM7D,EAAQiB,cACd6C,EAAc9D,EAAQ+D,sBACtBC,EAAa/D,KAAK0D,WAAa,GAAK,MAElB1D,KAAKgB,cAAvB4C,GAAe,IAARA,EAAgCA,EAAaH,IAAaI,GAA+B,IAAhBA,GAAyCA,EAAsCE,EAGnK/D,KAAKgB,cAAgBgD,KAAKC,MAAMjE,KAAKgB,eAGrChB,KAAKkE,aAAc,EAGnBlE,KAAKmE,WAAY,EAEjBnE,KAAKoE,QAAS,EAEdpE,KAAKQ,OAAQ,EAEbR,KAAKqE,UAAW,EAGhBrE,KAAKmB,WAAY,EAKjB,IAAImD,GAAqC,IAA1BvE,EAAQwE,cACvBvE,KAAKuE,eAAiBD,EAKtBtE,KAAKwE,gBAAkBzE,EAAQyE,iBAAmB,OAKlDxE,KAAKH,OAAS,EAGdG,KAAKyE,SAAU,EAGfzE,KAAK0E,OAAS,EAMd1E,KAAK2E,MAAO,EAKZ3E,KAAK4E,kBAAmB,EAGxB5E,KAAK6E,QAAU,SAAUC,IA4R3B,SAAiBtB,EAAQsB,GACvB,IAAIjD,EAAQ2B,EAAOjD,eACfoE,EAAO9C,EAAM8C,KACbnD,EAAKK,EAAMkD,QAIf,GAdF,SAA4BlD,GAC1BA,EAAM4C,SAAU,EAChB5C,EAAMkD,QAAU,KAChBlD,EAAMhC,QAAUgC,EAAMmD,SACtBnD,EAAMmD,SAAW,EAQjBC,CAAmBpD,GAEfiD,GAtCN,SAAsBtB,EAAQ3B,EAAO8C,EAAMG,EAAItD,KAC3CK,EAAMO,UAEJuC,GAGF9F,EAAI4B,SAASe,EAAIsD,GAGjBjG,EAAI4B,SAASyE,EAAa1B,EAAQ3B,GAClC2B,EAAOjD,eAAe4E,cAAe,EACrC3B,EAAO4B,KAAK,QAASN,KAIrBtD,EAAGsD,GACHtB,EAAOjD,eAAe4E,cAAe,EACrC3B,EAAO4B,KAAK,QAASN,GAGrBI,EAAY1B,EAAQ3B,IAkBdwD,CAAa7B,EAAQ3B,EAAO8C,EAAMG,EAAItD,OAAS,CAErD,IAAI6C,EAAWiB,EAAWzD,GAErBwC,GAAaxC,EAAM6C,QAAW7C,EAAM+C,mBAAoB/C,EAAM0D,iBACjEC,EAAYhC,EAAQ3B,GAGlB8C,EAEFpC,EAAWkD,EAAYjC,EAAQ3B,EAAOwC,EAAU7C,GAGhDiE,EAAWjC,EAAQ3B,EAAOwC,EAAU7C,IA/StCqD,CAAQrB,EAAQsB,IAIlB9E,KAAK+E,QAAU,KAGf/E,KAAKgF,SAAW,EAEhBhF,KAAKuF,gBAAkB,KACvBvF,KAAK0F,oBAAsB,KAI3B1F,KAAKoC,UAAY,EAIjBpC,KAAK2F,aAAc,EAGnB3F,KAAKmF,cAAe,EAGpBnF,KAAK4F,qBAAuB,EAI5B5F,KAAKqC,mBAAqB,IAAIT,EAAc5B,MA0C9C,SAASN,EAASK,GAUhB,GATAT,EAASA,GAAU,EAAQ,OAStB+D,EAAgBpD,KAAKP,EAAUM,OAAWA,gBAAgBV,GAC7D,OAAO,IAAII,EAASK,GAGtBC,KAAKO,eAAiB,IAAIuC,EAAc/C,EAASC,MAGjDA,KAAKG,UAAW,EAEZJ,IAC2B,mBAAlBA,EAAQ8F,QAAsB7F,KAAK8F,OAAS/F,EAAQ8F,OAEjC,mBAAnB9F,EAAQgG,SAAuB/F,KAAKgG,QAAUjG,EAAQgG,QAElC,mBAApBhG,EAAQkG,UAAwBjG,KAAKsB,SAAWvB,EAAQkG,SAEtC,mBAAlBlG,EAAQmG,QAAsBlG,KAAKmG,OAASpG,EAAQmG,QAGjEzE,EAAOxB,KAAKD,MAgJd,SAASoG,EAAQ5C,EAAQ3B,EAAOkE,EAAQM,EAAKC,EAAOC,EAAU/E,GAC5DK,EAAMmD,SAAWqB,EACjBxE,EAAMkD,QAAUvD,EAChBK,EAAM4C,SAAU,EAChB5C,EAAM8C,MAAO,EACToB,EAAQvC,EAAOwC,QAAQM,EAAOzE,EAAMgD,SAAcrB,EAAOsC,OAAOQ,EAAOC,EAAU1E,EAAMgD,SAC3FhD,EAAM8C,MAAO,EA2Df,SAASc,EAAWjC,EAAQ3B,EAAOwC,EAAU7C,GACtC6C,GASP,SAAsBb,EAAQ3B,GACP,IAAjBA,EAAMhC,QAAgBgC,EAAMsC,YAC9BtC,EAAMsC,WAAY,EAClBX,EAAO4B,KAAK,UAZCoB,CAAahD,EAAQ3B,GACpCA,EAAMO,YACNZ,IACA0D,EAAY1B,EAAQ3B,GActB,SAAS2D,EAAYhC,EAAQ3B,GAC3BA,EAAM+C,kBAAmB,EACzB,IAAI5C,EAAQH,EAAM0D,gBAElB,GAAI/B,EAAOwC,SAAWhE,GAASA,EAAMD,KAAM,CAEzC,IAAI0E,EAAI5E,EAAM+D,qBACVc,EAAS,IAAIC,MAAMF,GACnBG,EAAS/E,EAAMQ,mBACnBuE,EAAO5E,MAAQA,EAIf,IAFA,IAAI6E,EAAQ,EACRC,GAAa,EACV9E,GACL0E,EAAOG,GAAS7E,EACXA,EAAM+E,QAAOD,GAAa,GAC/B9E,EAAQA,EAAMD,KACd8E,GAAS,EAEXH,EAAOI,WAAaA,EAEpBV,EAAQ5C,EAAQ3B,GAAO,EAAMA,EAAMhC,OAAQ6G,EAAQ,GAAIE,EAAO3E,QAI9DJ,EAAMO,YACNP,EAAM6D,oBAAsB,KACxBkB,EAAO7E,MACTF,EAAMQ,mBAAqBuE,EAAO7E,KAClC6E,EAAO7E,KAAO,MAEdF,EAAMQ,mBAAqB,IAAIT,EAAcC,GAE/CA,EAAM+D,qBAAuB,MACxB,CAEL,KAAO5D,GAAO,CACZ,IAAIsE,EAAQtE,EAAMsE,MACdC,EAAWvE,EAAMuE,SACjB/E,EAAKQ,EAAMG,SAUf,GAPAiE,EAAQ5C,EAAQ3B,GAAO,EAFbA,EAAM6B,WAAa,EAAI4C,EAAMzG,OAEJyG,EAAOC,EAAU/E,GACpDQ,EAAQA,EAAMD,KACdF,EAAM+D,uBAKF/D,EAAM4C,QACR,MAIU,OAAVzC,IAAgBH,EAAM6D,oBAAsB,MAGlD7D,EAAM0D,gBAAkBvD,EACxBH,EAAM+C,kBAAmB,EAiC3B,SAASU,EAAWzD,GAClB,OAAOA,EAAMuC,QAA2B,IAAjBvC,EAAMhC,QAA0C,OAA1BgC,EAAM0D,kBAA6B1D,EAAMwC,WAAaxC,EAAM4C,QAE3G,SAASuC,EAAUxD,EAAQ3B,GACzB2B,EAAO2C,QAAO,SAAU5E,GACtBM,EAAMO,YACFb,GACFiC,EAAO4B,KAAK,QAAS7D,GAEvBM,EAAM8D,aAAc,EACpBnC,EAAO4B,KAAK,aACZF,EAAY1B,EAAQ3B,MAgBxB,SAASqD,EAAY1B,EAAQ3B,GAC3B,IAAIoF,EAAO3B,EAAWzD,GAQtB,OAPIoF,KAfN,SAAmBzD,EAAQ3B,GACpBA,EAAM8D,aAAgB9D,EAAMqC,cACF,mBAAlBV,EAAO2C,QAChBtE,EAAMO,YACNP,EAAMqC,aAAc,EACpBrF,EAAI4B,SAASuG,EAAWxD,EAAQ3B,KAEhCA,EAAM8D,aAAc,EACpBnC,EAAO4B,KAAK,eAQd8B,CAAU1D,EAAQ3B,GACM,IAApBA,EAAMO,YACRP,EAAMwC,UAAW,EACjBb,EAAO4B,KAAK,YAGT6B,EAzhBT1H,EAAKC,SAASE,EAAU+B,GAmHxBqB,EAAcnD,UAAUwH,UAAY,WAGlC,IAFA,IAAIC,EAAUpH,KAAKuF,gBACf8B,EAAM,GACHD,GACLC,EAAIlI,KAAKiI,GACTA,EAAUA,EAAQrF,KAEpB,OAAOsF,GAGT,WACE,IACEtI,OAAO8B,eAAeiC,EAAcnD,UAAW,SAAU,CACvDoB,IAAKgC,EAAaC,WAAU,WAC1B,OAAOhD,KAAKmH,cACX,6EAAmF,aAExF,MAAOG,KAPX,GAasB,mBAAXC,QAAyBA,OAAOC,aAAiE,mBAA3CC,SAAS9H,UAAU4H,OAAOC,cACzFnE,EAAkBoE,SAAS9H,UAAU4H,OAAOC,aAC5CzI,OAAO8B,eAAenB,EAAU6H,OAAOC,YAAa,CAClDnG,MAAO,SAAUqG,GACf,QAAIrE,EAAgBpD,KAAKD,KAAM0H,IAC3B1H,OAASN,IAENgI,GAAUA,EAAOnH,0BAA0BuC,OAItDO,EAAkB,SAAUqE,GAC1B,OAAOA,aAAkB1H,MAqC7BN,EAASC,UAAUgI,KAAO,WACxB3H,KAAKoF,KAAK,QAAS,IAAIwC,MAAM,+BA8B/BlI,EAASC,UAAUkG,MAAQ,SAAUS,EAAOC,EAAU/E,GACpD,IAnOqBvC,EAmOjB4C,EAAQ7B,KAAKO,eACbsH,GAAM,EACNd,GAASlF,EAAM6B,aArOEzE,EAqO0BqH,EApOxCrD,EAAO6E,SAAS7I,IAAQA,aAAeiE,GAwP9C,OAlBI6D,IAAU9D,EAAO6E,SAASxB,KAC5BA,EA3OJ,SAA6BA,GAC3B,OAAOrD,EAAO8E,KAAKzB,GA0OT0B,CAAoB1B,IAGN,mBAAbC,IACT/E,EAAK+E,EACLA,EAAW,MAGTQ,EAAOR,EAAW,SAAmBA,IAAUA,EAAW1E,EAAM2C,iBAElD,mBAAPhD,IAAmBA,EAAK+B,GAE/B1B,EAAMrB,MA7CZ,SAAuBgD,EAAQhC,GAC7B,IAAIsD,EAAK,IAAI8C,MAAM,mBAEnBpE,EAAO4B,KAAK,QAASN,GACrBjG,EAAI4B,SAASe,EAAIsD,GAyCAmD,CAAcjI,KAAMwB,IAAauF,GAnCpD,SAAoBvD,EAAQ3B,EAAOyE,EAAO9E,GACxC,IAAI0G,GAAQ,EACRpD,GAAK,EAYT,OAVc,OAAVwB,EACFxB,EAAK,IAAIqD,UAAU,uCACO,iBAAV7B,QAAgCrF,IAAVqF,GAAwBzE,EAAM6B,aACpEoB,EAAK,IAAIqD,UAAU,oCAEjBrD,IACFtB,EAAO4B,KAAK,QAASN,GACrBjG,EAAI4B,SAASe,EAAIsD,GACjBoD,GAAQ,GAEHA,EAqBoDE,CAAWpI,KAAM6B,EAAOyE,EAAO9E,MACxFK,EAAMO,YACNyF,EAkDJ,SAAuBrE,EAAQ3B,EAAOkF,EAAOT,EAAOC,EAAU/E,GAC5D,IAAKuF,EAAO,CACV,IAAIsB,EAtBR,SAAqBxG,EAAOyE,EAAOC,GAC5B1E,EAAM6B,aAAsC,IAAxB7B,EAAM0C,eAA4C,iBAAV+B,IAC/DA,EAAQrD,EAAO8E,KAAKzB,EAAOC,IAE7B,OAAOD,EAkBUgC,CAAYzG,EAAOyE,EAAOC,GACrCD,IAAU+B,IACZtB,GAAQ,EACRR,EAAW,SACXD,EAAQ+B,GAGZ,IAAIhC,EAAMxE,EAAM6B,WAAa,EAAI4C,EAAMzG,OAEvCgC,EAAMhC,QAAUwG,EAEhB,IAAIwB,EAAMhG,EAAMhC,OAASgC,EAAMb,cAE1B6G,IAAKhG,EAAMsC,WAAY,GAE5B,GAAItC,EAAM4C,SAAW5C,EAAM6C,OAAQ,CACjC,IAAI6D,EAAO1G,EAAM6D,oBACjB7D,EAAM6D,oBAAsB,CAC1BY,MAAOA,EACPC,SAAUA,EACVQ,MAAOA,EACP5E,SAAUX,EACVO,KAAM,MAEJwG,EACFA,EAAKxG,KAAOF,EAAM6D,oBAElB7D,EAAM0D,gBAAkB1D,EAAM6D,oBAEhC7D,EAAM+D,sBAAwB,OAE9BQ,EAAQ5C,EAAQ3B,GAAO,EAAOwE,EAAKC,EAAOC,EAAU/E,GAGtD,OAAOqG,EAtFCW,CAAcxI,KAAM6B,EAAOkF,EAAOT,EAAOC,EAAU/E,IAGpDqG,GAGTnI,EAASC,UAAU8I,KAAO,WACZzI,KAAKO,eAEXmE,UAGRhF,EAASC,UAAU+I,OAAS,WAC1B,IAAI7G,EAAQ7B,KAAKO,eAEbsB,EAAM6C,SACR7C,EAAM6C,SAED7C,EAAM4C,SAAY5C,EAAM6C,QAAW7C,EAAMwC,UAAaxC,EAAM+C,mBAAoB/C,EAAM0D,iBAAiBC,EAAYxF,KAAM6B,KAIlInC,EAASC,UAAUgJ,mBAAqB,SAA4BpC,GAGlE,GADwB,iBAAbA,IAAuBA,EAAWA,EAASqC,iBAChD,CAAC,MAAO,OAAQ,QAAS,QAAS,SAAU,SAAU,OAAQ,QAAS,UAAW,WAAY,OAAOlG,SAAS6D,EAAW,IAAIqC,gBAAkB,GAAI,MAAM,IAAIT,UAAU,qBAAuB5B,GAEpM,OADAvG,KAAKO,eAAeiE,gBAAkB+B,EAC/BvG,MAUTjB,OAAO8B,eAAenB,EAASC,UAAW,wBAAyB,CAIjEmB,YAAY,EACZC,IAAK,WACH,OAAOf,KAAKO,eAAeS,iBA8L/BtB,EAASC,UAAUmG,OAAS,SAAUQ,EAAOC,EAAU/E,GACrDA,EAAG,IAAIoG,MAAM,iCAGflI,EAASC,UAAUqG,QAAU,KAE7BtG,EAASC,UAAUiB,IAAM,SAAU0F,EAAOC,EAAU/E,GAClD,IAAIK,EAAQ7B,KAAKO,eAEI,mBAAV+F,GACT9E,EAAK8E,EACLA,EAAQ,KACRC,EAAW,MACkB,mBAAbA,IAChB/E,EAAK+E,EACLA,EAAW,MAGTD,SAAuCtG,KAAK6F,MAAMS,EAAOC,GAGzD1E,EAAM6C,SACR7C,EAAM6C,OAAS,EACf1E,KAAK0I,UAIF7G,EAAMuC,QAAWvC,EAAMwC,UA0C9B,SAAqBb,EAAQ3B,EAAOL,GAClCK,EAAMuC,QAAS,EACfc,EAAY1B,EAAQ3B,GAChBL,IACEK,EAAMwC,SAAUxF,EAAI4B,SAASe,GAASgC,EAAOnD,KAAK,SAAUmB,IAElEK,EAAMrB,OAAQ,EACdgD,EAAOrD,UAAW,EAjDoB0I,CAAY7I,KAAM6B,EAAOL,IAoEjEzC,OAAO8B,eAAenB,EAASC,UAAW,YAAa,CACrDoB,IAAK,WACH,YAA4BE,IAAxBjB,KAAKO,gBAGFP,KAAKO,eAAeY,WAE7BC,IAAK,SAAUC,GAGRrB,KAAKO,iBAMVP,KAAKO,eAAeY,UAAYE,MAIpC3B,EAASC,UAAUsG,QAAU3C,EAAY2C,QACzCvG,EAASC,UAAUmJ,WAAaxF,EAAYyF,UAC5CrJ,EAASC,UAAU2B,SAAW,SAAUC,EAAKC,GAC3CxB,KAAKY,MACLY,EAAGD,M,8EC7qBL,cAyBA,IAAI1C,EAAM,EAAQ,KAGlBO,EAAOC,QAAUI,EAGjB,IAIIH,EAJA0J,EAAU,EAAQ,KAOtBvJ,EAASwJ,cAAgBA,EAGhB,EAAQ,KAAUC,aAA3B,IAEIC,EAAkB,SAAUC,EAASC,GACvC,OAAOD,EAAQE,UAAUD,GAAMxJ,QAK7B4B,EAAS,EAAQ,KAKjBwB,EAAS,EAAQ,IAAeA,OAChCC,EAAgBC,EAAOC,YAAc,aAWzC,IAAI7D,EAAO,EAAQ,KACnBA,EAAKC,SAAW,EAAQ,IAIxB,IAAI+J,EAAY,EAAQ,KACpBC,OAAQ,EAEVA,EADED,GAAaA,EAAUE,SACjBF,EAAUE,SAAS,UAEnB,aAIV,IAEIC,EAFAC,EAAa,EAAQ,KACrBrG,EAAc,EAAQ,KAG1B/D,EAAKC,SAASC,EAAUgC,GAExB,IAAImI,EAAe,CAAC,QAAS,QAAS,UAAW,QAAS,UAc1D,SAASX,EAAclJ,EAASyD,GAG9BzD,EAAUA,GAAW,GAOrB,IAAI0D,EAAWD,aATflE,EAASA,GAAU,EAAQ,MAa3BU,KAAK0D,aAAe3D,EAAQ2D,WAExBD,IAAUzD,KAAK0D,WAAa1D,KAAK0D,cAAgB3D,EAAQ8J,oBAI7D,IAAIjG,EAAM7D,EAAQiB,cACd8I,EAAc/J,EAAQgK,sBACtBhG,EAAa/D,KAAK0D,WAAa,GAAK,MAElB1D,KAAKgB,cAAvB4C,GAAe,IAARA,EAAgCA,EAAaH,IAAaqG,GAA+B,IAAhBA,GAAyCA,EAAsC/F,EAGnK/D,KAAKgB,cAAgBgD,KAAKC,MAAMjE,KAAKgB,eAKrChB,KAAK0G,OAAS,IAAIiD,EAClB3J,KAAKH,OAAS,EACdG,KAAKgK,MAAQ,KACbhK,KAAKiK,WAAa,EAClBjK,KAAKkK,QAAU,KACflK,KAAKQ,OAAQ,EACbR,KAAKmK,YAAa,EAClBnK,KAAKoK,SAAU,EAMfpK,KAAK2E,MAAO,EAIZ3E,KAAKqK,cAAe,EACpBrK,KAAKsK,iBAAkB,EACvBtK,KAAKuK,mBAAoB,EACzBvK,KAAKwK,iBAAkB,EAGvBxK,KAAKmB,WAAY,EAKjBnB,KAAKwE,gBAAkBzE,EAAQyE,iBAAmB,OAGlDxE,KAAKyK,WAAa,EAGlBzK,KAAK0K,aAAc,EAEnB1K,KAAK2K,QAAU,KACf3K,KAAKuG,SAAW,KACZxG,EAAQwG,WACLmD,IAAeA,EAAgB,EAAQ,KAAmBA,eAC/D1J,KAAK2K,QAAU,IAAIjB,EAAc3J,EAAQwG,UACzCvG,KAAKuG,SAAWxG,EAAQwG,UAI5B,SAAS9G,EAASM,GAGhB,GAFAT,EAASA,GAAU,EAAQ,OAErBU,gBAAgBP,GAAW,OAAO,IAAIA,EAASM,GAErDC,KAAKkB,eAAiB,IAAI+H,EAAclJ,EAASC,MAGjDA,KAAKE,UAAW,EAEZH,IAC0B,mBAAjBA,EAAQ6K,OAAqB5K,KAAK6K,MAAQ9K,EAAQ6K,MAE9B,mBAApB7K,EAAQkG,UAAwBjG,KAAKsB,SAAWvB,EAAQkG,UAGrExE,EAAOxB,KAAKD,MA2Dd,SAAS8K,EAAiBtH,EAAQ8C,EAAOC,EAAUwE,EAAYC,GAC7D,IAKMlG,EALFjD,EAAQ2B,EAAOtC,eACL,OAAVoF,GACFzE,EAAMuI,SAAU,EA0NpB,SAAoB5G,EAAQ3B,GAC1B,GAAIA,EAAMrB,MAAO,OACjB,GAAIqB,EAAM8I,QAAS,CACjB,IAAIrE,EAAQzE,EAAM8I,QAAQ/J,MACtB0F,GAASA,EAAMzG,SACjBgC,EAAM6E,OAAOvH,KAAKmH,GAClBzE,EAAMhC,QAAUgC,EAAM6B,WAAa,EAAI4C,EAAMzG,QAGjDgC,EAAMrB,OAAQ,EAGdyK,EAAazH,GArOX0H,CAAW1H,EAAQ3B,KAGdmJ,IAAgBlG,EA2CzB,SAAsBjD,EAAOyE,GAC3B,IAAIxB,EApPiB7F,EAqPFqH,EApPZrD,EAAO6E,SAAS7I,IAAQA,aAAeiE,GAoPA,iBAAVoD,QAAgCrF,IAAVqF,GAAwBzE,EAAM6B,aACtFoB,EAAK,IAAIqD,UAAU,oCAtPvB,IAAuBlJ,EAwPrB,OAAO6F,EAhDqBqG,CAAatJ,EAAOyE,IAC1CxB,EACFtB,EAAO4B,KAAK,QAASN,GACZjD,EAAM6B,YAAc4C,GAASA,EAAMzG,OAAS,GAChC,iBAAVyG,GAAuBzE,EAAM6B,YAAc3E,OAAOqM,eAAe9E,KAAWrD,EAAOtD,YAC5F2G,EAhNR,SAA6BA,GAC3B,OAAOrD,EAAO8E,KAAKzB,GA+ML0B,CAAoB1B,IAG1ByE,EACElJ,EAAMsI,WAAY3G,EAAO4B,KAAK,QAAS,IAAIwC,MAAM,qCAA0CyD,EAAS7H,EAAQ3B,EAAOyE,GAAO,GACrHzE,EAAMrB,MACfgD,EAAO4B,KAAK,QAAS,IAAIwC,MAAM,6BAE/B/F,EAAMuI,SAAU,EACZvI,EAAM8I,UAAYpE,GACpBD,EAAQzE,EAAM8I,QAAQ9E,MAAMS,GACxBzE,EAAM6B,YAA+B,IAAjB4C,EAAMzG,OAAcwL,EAAS7H,EAAQ3B,EAAOyE,GAAO,GAAYgF,EAAc9H,EAAQ3B,IAE7GwJ,EAAS7H,EAAQ3B,EAAOyE,GAAO,KAGzByE,IACVlJ,EAAMuI,SAAU,IAIpB,OAgCF,SAAsBvI,GACpB,OAAQA,EAAMrB,QAAUqB,EAAMwI,cAAgBxI,EAAMhC,OAASgC,EAAMb,eAAkC,IAAjBa,EAAMhC,QAjCnF0L,CAAa1J,GAGtB,SAASwJ,EAAS7H,EAAQ3B,EAAOyE,EAAOyE,GAClClJ,EAAMqI,SAA4B,IAAjBrI,EAAMhC,SAAiBgC,EAAM8C,MAChDnB,EAAO4B,KAAK,OAAQkB,GACpB9C,EAAOoH,KAAK,KAGZ/I,EAAMhC,QAAUgC,EAAM6B,WAAa,EAAI4C,EAAMzG,OACzCkL,EAAYlJ,EAAM6E,OAAO8E,QAAQlF,GAAYzE,EAAM6E,OAAOvH,KAAKmH,GAE/DzE,EAAMwI,cAAcY,EAAazH,IAEvC8H,EAAc9H,EAAQ3B,GAvGxB9C,OAAO8B,eAAepB,EAASE,UAAW,YAAa,CACrDoB,IAAK,WACH,YAA4BE,IAAxBjB,KAAKkB,gBAGFlB,KAAKkB,eAAeC,WAE7BC,IAAK,SAAUC,GAGRrB,KAAKkB,iBAMVlB,KAAKkB,eAAeC,UAAYE,MAIpC5B,EAASE,UAAUsG,QAAU3C,EAAY2C,QACzCxG,EAASE,UAAUmJ,WAAaxF,EAAYyF,UAC5CtJ,EAASE,UAAU2B,SAAW,SAAUC,EAAKC,GAC3CxB,KAAKb,KAAK,MACVqC,EAAGD,IAOL9B,EAASE,UAAUR,KAAO,SAAUmH,EAAOC,GACzC,IACIyE,EADAnJ,EAAQ7B,KAAKkB,eAgBjB,OAbKW,EAAM6B,WAUTsH,GAAiB,EATI,iBAAV1E,KACTC,EAAWA,GAAY1E,EAAM2C,mBACZ3C,EAAM0E,WACrBD,EAAQrD,EAAO8E,KAAKzB,EAAOC,GAC3BA,EAAW,IAEbyE,GAAiB,GAMdF,EAAiB9K,KAAMsG,EAAOC,GAAU,EAAOyE,IAIxDvL,EAASE,UAAU6L,QAAU,SAAUlF,GACrC,OAAOwE,EAAiB9K,KAAMsG,EAAO,MAAM,GAAM,IAwEnD7G,EAASE,UAAU8L,SAAW,WAC5B,OAAuC,IAAhCzL,KAAKkB,eAAegJ,SAI7BzK,EAASE,UAAU+L,YAAc,SAAUC,GAIzC,OAHKjC,IAAeA,EAAgB,EAAQ,KAAmBA,eAC/D1J,KAAKkB,eAAeyJ,QAAU,IAAIjB,EAAciC,GAChD3L,KAAKkB,eAAeqF,SAAWoF,EACxB3L,MAwBT,SAAS4L,EAAcC,EAAGhK,GACxB,OAAIgK,GAAK,GAAsB,IAAjBhK,EAAMhC,QAAgBgC,EAAMrB,MAAc,EACpDqB,EAAM6B,WAAmB,EACzBmI,GAAMA,EAEJhK,EAAMqI,SAAWrI,EAAMhC,OAAegC,EAAM6E,OAAOoF,KAAKC,KAAKlM,OAAmBgC,EAAMhC,QAGxFgM,EAAIhK,EAAMb,gBAAea,EAAMb,cA3BrC,SAAiC6K,GAc/B,OAbIA,GAFQ,QAGVA,EAHU,SAOVA,IACAA,GAAKA,IAAM,EACXA,GAAKA,IAAM,EACXA,GAAKA,IAAM,EACXA,GAAKA,IAAM,EACXA,GAAKA,IAAM,GACXA,KAEKA,EAa4CG,CAAwBH,IACvEA,GAAKhK,EAAMhC,OAAegM,EAEzBhK,EAAMrB,MAIJqB,EAAMhC,QAHXgC,EAAMwI,cAAe,EACd,IA4HX,SAASY,EAAazH,GACpB,IAAI3B,EAAQ2B,EAAOtC,eACnBW,EAAMwI,cAAe,EAChBxI,EAAMyI,kBACTd,EAAM,eAAgB3H,EAAMqI,SAC5BrI,EAAMyI,iBAAkB,EACpBzI,EAAM8C,KAAM9F,EAAI4B,SAASwL,EAAezI,GAAayI,EAAczI,IAI3E,SAASyI,EAAczI,GACrBgG,EAAM,iBACNhG,EAAO4B,KAAK,YACZ8G,EAAK1I,GASP,SAAS8H,EAAc9H,EAAQ3B,GACxBA,EAAM6I,cACT7I,EAAM6I,aAAc,EACpB7L,EAAI4B,SAAS0L,EAAgB3I,EAAQ3B,IAIzC,SAASsK,EAAe3I,EAAQ3B,GAE9B,IADA,IAAIwE,EAAMxE,EAAMhC,QACRgC,EAAMuI,UAAYvI,EAAMqI,UAAYrI,EAAMrB,OAASqB,EAAMhC,OAASgC,EAAMb,gBAC9EwI,EAAM,wBACNhG,EAAOoH,KAAK,GACRvE,IAAQxE,EAAMhC,SAELwG,EAAMxE,EAAMhC,OAE3BgC,EAAM6I,aAAc,EAyOtB,SAAS0B,EAAiBzL,GACxB6I,EAAM,4BACN7I,EAAKiK,KAAK,GAsBZ,SAASyB,EAAQ7I,EAAQ3B,GAClBA,EAAMuI,UACTZ,EAAM,iBACNhG,EAAOoH,KAAK,IAGd/I,EAAM2I,iBAAkB,EACxB3I,EAAM4I,WAAa,EACnBjH,EAAO4B,KAAK,UACZ8G,EAAK1I,GACD3B,EAAMqI,UAAYrI,EAAMuI,SAAS5G,EAAOoH,KAAK,GAanD,SAASsB,EAAK1I,GACZ,IAAI3B,EAAQ2B,EAAOtC,eAEnB,IADAsI,EAAM,OAAQ3H,EAAMqI,SACbrI,EAAMqI,SAA6B,OAAlB1G,EAAOoH,UAmFjC,SAAS0B,EAAST,EAAGhK,GAEnB,OAAqB,IAAjBA,EAAMhC,OAAqB,MAG3BgC,EAAM6B,WAAYmE,EAAMhG,EAAM6E,OAAO6F,SAAkBV,GAAKA,GAAKhK,EAAMhC,QAEtDgI,EAAfhG,EAAM8I,QAAe9I,EAAM6E,OAAO8F,KAAK,IAAqC,IAAxB3K,EAAM6E,OAAO7G,OAAoBgC,EAAM6E,OAAOoF,KAAKC,KAAgBlK,EAAM6E,OAAO+F,OAAO5K,EAAMhC,QACrJgC,EAAM6E,OAAOgG,SAGb7E,EASJ,SAAyBgE,EAAGc,EAAMC,GAChC,IAAI/E,EACAgE,EAAIc,EAAKb,KAAKC,KAAKlM,QAErBgI,EAAM8E,EAAKb,KAAKC,KAAKnJ,MAAM,EAAGiJ,GAC9Bc,EAAKb,KAAKC,KAAOY,EAAKb,KAAKC,KAAKnJ,MAAMiJ,IAGtChE,EAFSgE,IAAMc,EAAKb,KAAKC,KAAKlM,OAExB8M,EAAKJ,QAGLK,EASV,SAA8Bf,EAAGc,GAC/B,IAAIE,EAAIF,EAAKb,KACTgB,EAAI,EACJjF,EAAMgF,EAAEd,KACZF,GAAKhE,EAAIhI,OACT,KAAOgN,EAAIA,EAAE9K,MAAM,CACjB,IAAIgL,EAAMF,EAAEd,KACRiB,EAAKnB,EAAIkB,EAAIlN,OAASkN,EAAIlN,OAASgM,EAGvC,GAFImB,IAAOD,EAAIlN,OAAQgI,GAAOkF,EAASlF,GAAOkF,EAAInK,MAAM,EAAGiJ,GAEjD,KADVA,GAAKmB,GACQ,CACPA,IAAOD,EAAIlN,UACXiN,EACED,EAAE9K,KAAM4K,EAAKb,KAAOe,EAAE9K,KAAU4K,EAAKb,KAAOa,EAAKM,KAAO,OAE5DN,EAAKb,KAAOe,EACZA,EAAEd,KAAOgB,EAAInK,MAAMoK,IAErB,QAEAF,EAGJ,OADAH,EAAK9M,QAAUiN,EACRjF,EAhCcqF,CAAqBrB,EAAGc,GAsC/C,SAAwBd,EAAGc,GACzB,IAAI9E,EAAM5E,EAAOkK,YAAYtB,GACzBgB,EAAIF,EAAKb,KACTgB,EAAI,EACRD,EAAEd,KAAKqB,KAAKvF,GACZgE,GAAKgB,EAAEd,KAAKlM,OACZ,KAAOgN,EAAIA,EAAE9K,MAAM,CACjB,IAAIsL,EAAMR,EAAEd,KACRiB,EAAKnB,EAAIwB,EAAIxN,OAASwN,EAAIxN,OAASgM,EAGvC,GAFAwB,EAAID,KAAKvF,EAAKA,EAAIhI,OAASgM,EAAG,EAAGmB,GAEvB,KADVnB,GAAKmB,GACQ,CACPA,IAAOK,EAAIxN,UACXiN,EACED,EAAE9K,KAAM4K,EAAKb,KAAOe,EAAE9K,KAAU4K,EAAKb,KAAOa,EAAKM,KAAO,OAE5DN,EAAKb,KAAOe,EACZA,EAAEd,KAAOsB,EAAIzK,MAAMoK,IAErB,QAEAF,EAGJ,OADAH,EAAK9M,QAAUiN,EACRjF,EA9D8CyF,CAAezB,EAAGc,GAEvE,OAAO9E,EAtBC0F,CAAgB1B,EAAGhK,EAAM6E,OAAQ7E,EAAM8I,SAGxC9C,GAVP,IAAIA,EA4FN,SAAS2F,EAAYhK,GACnB,IAAI3B,EAAQ2B,EAAOtC,eAInB,GAAIW,EAAMhC,OAAS,EAAG,MAAM,IAAI+H,MAAM,8CAEjC/F,EAAMsI,aACTtI,EAAMrB,OAAQ,EACd3B,EAAI4B,SAASgN,EAAe5L,EAAO2B,IAIvC,SAASiK,EAAc5L,EAAO2B,GAEvB3B,EAAMsI,YAA+B,IAAjBtI,EAAMhC,SAC7BgC,EAAMsI,YAAa,EACnB3G,EAAOtD,UAAW,EAClBsD,EAAO4B,KAAK,QAIhB,SAAS1C,EAAQgL,EAAIC,GACnB,IAAK,IAAIC,EAAI,EAAGnH,EAAIiH,EAAG7N,OAAQ+N,EAAInH,EAAGmH,IACpC,GAAIF,EAAGE,KAAOD,EAAG,OAAOC,EAE1B,OAAQ,EApoBVnO,EAASE,UAAUiL,KAAO,SAAUiB,GAClCrC,EAAM,OAAQqC,GACdA,EAAIgC,SAAShC,EAAG,IAChB,IAAIhK,EAAQ7B,KAAKkB,eACb4M,EAAQjC,EAOZ,GALU,IAANA,IAAShK,EAAMyI,iBAAkB,GAK3B,IAANuB,GAAWhK,EAAMwI,eAAiBxI,EAAMhC,QAAUgC,EAAMb,eAAiBa,EAAMrB,OAGjF,OAFAgJ,EAAM,qBAAsB3H,EAAMhC,OAAQgC,EAAMrB,OAC3B,IAAjBqB,EAAMhC,QAAgBgC,EAAMrB,MAAOgN,EAAYxN,MAAWiL,EAAajL,MACpE,KAMT,GAAU,KAHV6L,EAAID,EAAcC,EAAGhK,KAGNA,EAAMrB,MAEnB,OADqB,IAAjBqB,EAAMhC,QAAc2N,EAAYxN,MAC7B,KA0BT,IA4BI6H,EA5BAkG,EAASlM,EAAMwI,aAiDnB,OAhDAb,EAAM,gBAAiBuE,IAGF,IAAjBlM,EAAMhC,QAAgBgC,EAAMhC,OAASgM,EAAIhK,EAAMb,gBAEjDwI,EAAM,6BADNuE,GAAS,GAMPlM,EAAMrB,OAASqB,EAAMuI,QAEvBZ,EAAM,mBADNuE,GAAS,GAEAA,IACTvE,EAAM,WACN3H,EAAMuI,SAAU,EAChBvI,EAAM8C,MAAO,EAEQ,IAAjB9C,EAAMhC,SAAcgC,EAAMwI,cAAe,GAE7CrK,KAAK6K,MAAMhJ,EAAMb,eACjBa,EAAM8C,MAAO,EAGR9C,EAAMuI,UAASyB,EAAID,EAAckC,EAAOjM,KAMnC,QAFDgG,EAAPgE,EAAI,EAASS,EAAST,EAAGhK,GAAkB,OAG7CA,EAAMwI,cAAe,EACrBwB,EAAI,GAEJhK,EAAMhC,QAAUgM,EAGG,IAAjBhK,EAAMhC,SAGHgC,EAAMrB,QAAOqB,EAAMwI,cAAe,GAGnCyD,IAAUjC,GAAKhK,EAAMrB,OAAOgN,EAAYxN,OAGlC,OAAR6H,GAAc7H,KAAKoF,KAAK,OAAQyC,GAE7BA,GAkETpI,EAASE,UAAUkL,MAAQ,SAAUgB,GACnC7L,KAAKoF,KAAK,QAAS,IAAIwC,MAAM,gCAG/BnI,EAASE,UAAUgI,KAAO,SAAUqG,EAAMC,GACxC,IAAIC,EAAMlO,KACN6B,EAAQ7B,KAAKkB,eAEjB,OAAQW,EAAMoI,YACZ,KAAK,EACHpI,EAAMmI,MAAQgE,EACd,MACF,KAAK,EACHnM,EAAMmI,MAAQ,CAACnI,EAAMmI,MAAOgE,GAC5B,MACF,QACEnM,EAAMmI,MAAM7K,KAAK6O,GAGrBnM,EAAMoI,YAAc,EACpBT,EAAM,wBAAyB3H,EAAMoI,WAAYgE,GAEjD,IAEIE,IAFUF,IAA6B,IAAjBA,EAASrN,MAAkBoN,IAASxL,EAAQ4L,QAAUJ,IAASxL,EAAQ6L,OAE7E/N,EAAQgO,EAI5B,SAASC,EAASrO,EAAUsO,GAC1BhF,EAAM,YACFtJ,IAAagO,GACXM,IAAwC,IAA1BA,EAAWC,aAC3BD,EAAWC,YAAa,EAoB5BjF,EAAM,WAENwE,EAAKU,eAAe,QAASC,GAC7BX,EAAKU,eAAe,SAAUE,GAC9BZ,EAAKU,eAAe,QAASG,GAC7Bb,EAAKU,eAAe,QAASI,GAC7Bd,EAAKU,eAAe,SAAUH,GAC9BL,EAAIQ,eAAe,MAAOpO,GAC1B4N,EAAIQ,eAAe,MAAOJ,GAC1BJ,EAAIQ,eAAe,OAAQK,GAE3BC,GAAY,GAORnN,EAAM4I,YAAgBuD,EAAKzN,iBAAkByN,EAAKzN,eAAe4D,WAAY0K,KAhCnF,SAASvO,IACPkJ,EAAM,SACNwE,EAAKpN,MAfHiB,EAAMsI,WAAYtL,EAAI4B,SAAS0N,GAAYD,EAAI7N,KAAK,MAAO8N,GAE/DH,EAAKiB,GAAG,SAAUV,GAoBlB,IAAIM,EA4FN,SAAqBX,GACnB,OAAO,WACL,IAAIrM,EAAQqM,EAAIhN,eAChBsI,EAAM,cAAe3H,EAAM4I,YACvB5I,EAAM4I,YAAY5I,EAAM4I,aACH,IAArB5I,EAAM4I,YAAoBtB,EAAgB+E,EAAK,UACjDrM,EAAMqI,SAAU,EAChBgC,EAAKgC,KAnGKgB,CAAYhB,GAC1BF,EAAKiB,GAAG,QAASJ,GAEjB,IAAIG,GAAY,EA2BhB,IAAIG,GAAsB,EAE1B,SAASJ,EAAOzI,GACdkD,EAAM,UACN2F,GAAsB,GAElB,IADMnB,EAAKnI,MAAMS,IACC6I,KAKM,IAArBtN,EAAMoI,YAAoBpI,EAAMmI,QAAUgE,GAAQnM,EAAMoI,WAAa,IAAqC,IAAhCvH,EAAQb,EAAMmI,MAAOgE,MAAkBgB,IACpHxF,EAAM,8BAA+B0E,EAAIhN,eAAeuJ,YACxDyD,EAAIhN,eAAeuJ,aACnB0E,GAAsB,GAExBjB,EAAIkB,SAMR,SAASN,EAAQhK,GACf0E,EAAM,UAAW1E,GACjBwJ,IACAN,EAAKU,eAAe,QAASI,GACU,IAAnC3F,EAAgB6E,EAAM,UAAgBA,EAAK5I,KAAK,QAASN,GAO/D,SAAS6J,IACPX,EAAKU,eAAe,SAAUE,GAC9BN,IAGF,SAASM,IACPpF,EAAM,YACNwE,EAAKU,eAAe,QAASC,GAC7BL,IAIF,SAASA,IACP9E,EAAM,UACN0E,EAAII,OAAON,GAYb,OA1DAE,EAAIe,GAAG,OAAQF,GA9gBjB,SAAyB3F,EAASiG,EAAOC,GAGvC,GAAuC,mBAA5BlG,EAAQmG,gBAAgC,OAAOnG,EAAQmG,gBAAgBF,EAAOC,GAMpFlG,EAAQoG,SAAYpG,EAAQoG,QAAQH,GAAuCrG,EAAQI,EAAQoG,QAAQH,IAASjG,EAAQoG,QAAQH,GAAO7D,QAAQ8D,GAASlG,EAAQoG,QAAQH,GAAS,CAACC,EAAIlG,EAAQoG,QAAQH,IAAtJjG,EAAQ6F,GAAGI,EAAOC,GAkiBnEC,CAAgBvB,EAAM,QAASc,GAO/Bd,EAAK3N,KAAK,QAASsO,GAMnBX,EAAK3N,KAAK,SAAUuO,GAQpBZ,EAAK5I,KAAK,OAAQ8I,GAGbrM,EAAMqI,UACTV,EAAM,eACN0E,EAAIuB,UAGCzB,GAeTvO,EAASE,UAAU2O,OAAS,SAAUN,GACpC,IAAInM,EAAQ7B,KAAKkB,eACbsN,EAAa,CAAEC,YAAY,GAG/B,GAAyB,IAArB5M,EAAMoI,WAAkB,OAAOjK,KAGnC,GAAyB,IAArB6B,EAAMoI,WAER,OAAI+D,GAAQA,IAASnM,EAAMmI,QAEtBgE,IAAMA,EAAOnM,EAAMmI,OAGxBnI,EAAMmI,MAAQ,KACdnI,EAAMoI,WAAa,EACnBpI,EAAMqI,SAAU,EACZ8D,GAAMA,EAAK5I,KAAK,SAAUpF,KAAMwO,IARKxO,KAc3C,IAAKgO,EAAM,CAET,IAAI0B,EAAQ7N,EAAMmI,MACd3D,EAAMxE,EAAMoI,WAChBpI,EAAMmI,MAAQ,KACdnI,EAAMoI,WAAa,EACnBpI,EAAMqI,SAAU,EAEhB,IAAK,IAAI0D,EAAI,EAAGA,EAAIvH,EAAKuH,IACvB8B,EAAM9B,GAAGxI,KAAK,SAAUpF,KAAMwO,GAC/B,OAAOxO,KAIV,IAAI2P,EAAQjN,EAAQb,EAAMmI,MAAOgE,GACjC,OAAe,IAAX2B,IAEJ9N,EAAMmI,MAAM4F,OAAOD,EAAO,GAC1B9N,EAAMoI,YAAc,EACK,IAArBpI,EAAMoI,aAAkBpI,EAAMmI,MAAQnI,EAAMmI,MAAM,IAEtDgE,EAAK5I,KAAK,SAAUpF,KAAMwO,IANDxO,MAa3BP,EAASE,UAAUsP,GAAK,SAAUY,EAAIP,GACpC,IAAIQ,EAAMrO,EAAO9B,UAAUsP,GAAGhP,KAAKD,KAAM6P,EAAIP,GAE7C,GAAW,SAAPO,GAEkC,IAAhC7P,KAAKkB,eAAegJ,SAAmBlK,KAAKyP,cAC3C,GAAW,aAAPI,EAAmB,CAC5B,IAAIhO,EAAQ7B,KAAKkB,eACZW,EAAMsI,YAAetI,EAAM0I,oBAC9B1I,EAAM0I,kBAAoB1I,EAAMwI,cAAe,EAC/CxI,EAAMyI,iBAAkB,EACnBzI,EAAMuI,QAEAvI,EAAMhC,QACfoL,EAAajL,MAFbnB,EAAI4B,SAAS2L,EAAkBpM,OAOrC,OAAO8P,GAETrQ,EAASE,UAAUoQ,YAActQ,EAASE,UAAUsP,GASpDxP,EAASE,UAAU8P,OAAS,WAC1B,IAAI5N,EAAQ7B,KAAKkB,eAMjB,OALKW,EAAMqI,UACTV,EAAM,UACN3H,EAAMqI,SAAU,EAMpB,SAAgB1G,EAAQ3B,GACjBA,EAAM2I,kBACT3I,EAAM2I,iBAAkB,EACxB3L,EAAI4B,SAAS4L,EAAS7I,EAAQ3B,IAR9B4N,CAAOzP,KAAM6B,IAER7B,MAuBTP,EAASE,UAAUyP,MAAQ,WAOzB,OANA5F,EAAM,wBAAyBxJ,KAAKkB,eAAegJ,UAC/C,IAAUlK,KAAKkB,eAAegJ,UAChCV,EAAM,SACNxJ,KAAKkB,eAAegJ,SAAU,EAC9BlK,KAAKoF,KAAK,UAELpF,MAYTP,EAASE,UAAUqQ,KAAO,SAAUxM,GAClC,IAAI1B,EAAQ9B,KAER6B,EAAQ7B,KAAKkB,eACb+O,GAAS,EA4Bb,IAAK,IAAIrC,KA1BTpK,EAAOyL,GAAG,OAAO,WAEf,GADAzF,EAAM,eACF3H,EAAM8I,UAAY9I,EAAMrB,MAAO,CACjC,IAAI8F,EAAQzE,EAAM8I,QAAQ/J,MACtB0F,GAASA,EAAMzG,QAAQiC,EAAM3C,KAAKmH,GAGxCxE,EAAM3C,KAAK,SAGbqE,EAAOyL,GAAG,QAAQ,SAAU3I,IAC1BkD,EAAM,gBACF3H,EAAM8I,UAASrE,EAAQzE,EAAM8I,QAAQ9E,MAAMS,IAG3CzE,EAAM6B,YAAc,MAAC4C,KAAyDzE,EAAM6B,YAAgB4C,GAAUA,EAAMzG,UAE9GiC,EAAM3C,KAAKmH,KAEnB2J,GAAS,EACTzM,EAAO4L,aAMG5L,OACIvC,IAAZjB,KAAK4N,IAAyC,mBAAdpK,EAAOoK,KACzC5N,KAAK4N,GAAK,SAAU9N,GAClB,OAAO,WACL,OAAO0D,EAAO1D,GAAQoQ,MAAM1M,EAAQ2M,YAF9B,CAIRvC,IAKN,IAAK,IAAI/B,EAAI,EAAGA,EAAIjC,EAAa/J,OAAQgM,IACvCrI,EAAOyL,GAAGrF,EAAaiC,GAAI7L,KAAKoF,KAAKgL,KAAKpQ,KAAM4J,EAAaiC,KAa/D,OARA7L,KAAK6K,MAAQ,SAAUgB,GACrBrC,EAAM,gBAAiBqC,GACnBoE,IACFA,GAAS,EACTzM,EAAOiM,WAIJzP,MAGTjB,OAAO8B,eAAepB,EAASE,UAAW,wBAAyB,CAIjEmB,YAAY,EACZC,IAAK,WACH,OAAOf,KAAKkB,eAAeF,iBAK/BvB,EAAS4Q,UAAY/D,I,4CCz3BrBlN,EAAOC,QAAU,EAAQ,KAAU6J,c,iCCInC,IAAIrK,EAAM,EAAQ,KA8DlB,SAASyR,EAAY3P,EAAMY,GACzBZ,EAAKyE,KAAK,QAAS7D,GAGrBnC,EAAOC,QAAU,CACf4G,QA/DF,SAAiB1E,EAAKC,GACpB,IAAIM,EAAQ9B,KAERuQ,EAAoBvQ,KAAKkB,gBAAkBlB,KAAKkB,eAAeC,UAC/DqP,EAAoBxQ,KAAKO,gBAAkBP,KAAKO,eAAeY,UAEnE,OAAIoP,GAAqBC,GACnBhP,EACFA,EAAGD,IACMA,GAASvB,KAAKO,gBAAmBP,KAAKO,eAAe4E,cAC9DtG,EAAI4B,SAAS6P,EAAatQ,KAAMuB,GAE3BvB,OAMLA,KAAKkB,iBACPlB,KAAKkB,eAAeC,WAAY,GAI9BnB,KAAKO,iBACPP,KAAKO,eAAeY,WAAY,GAGlCnB,KAAKsB,SAASC,GAAO,MAAM,SAAUA,IAC9BC,GAAMD,GACT1C,EAAI4B,SAAS6P,EAAaxO,EAAOP,GAC7BO,EAAMvB,iBACRuB,EAAMvB,eAAe4E,cAAe,IAE7B3D,GACTA,EAAGD,MAIAvB,OA0BP+I,UAvBF,WACM/I,KAAKkB,iBACPlB,KAAKkB,eAAeC,WAAY,EAChCnB,KAAKkB,eAAekJ,SAAU,EAC9BpK,KAAKkB,eAAeV,OAAQ,EAC5BR,KAAKkB,eAAeiJ,YAAa,GAG/BnK,KAAKO,iBACPP,KAAKO,eAAeY,WAAY,EAChCnB,KAAKO,eAAeC,OAAQ,EAC5BR,KAAKO,eAAe6D,QAAS,EAC7BpE,KAAKO,eAAe8D,UAAW,EAC/BrE,KAAKO,eAAe4E,cAAe,M,iCCGvC/F,EAAOC,QAAUqC,EAEjB,IAAIpC,EAAS,EAAQ,KAGjBC,EAAO,EAAQ,KAMnB,SAASkR,EAAe3L,EAAIiH,GAC1B,IAAI2E,EAAK1Q,KAAK2Q,gBACdD,EAAGE,cAAe,EAElB,IAAIpP,EAAKkP,EAAG3L,QAEZ,IAAKvD,EACH,OAAOxB,KAAKoF,KAAK,QAAS,IAAIwC,MAAM,yCAGtC8I,EAAGG,WAAa,KAChBH,EAAG3L,QAAU,KAED,MAARgH,GACF/L,KAAKb,KAAK4M,GAEZvK,EAAGsD,GAEH,IAAIgM,EAAK9Q,KAAKkB,eACd4P,EAAG1G,SAAU,GACT0G,EAAGzG,cAAgByG,EAAGjR,OAASiR,EAAG9P,gBACpChB,KAAK6K,MAAMiG,EAAG9P,eAIlB,SAASU,EAAU3B,GACjB,KAAMC,gBAAgB0B,GAAY,OAAO,IAAIA,EAAU3B,GAEvDT,EAAOW,KAAKD,KAAMD,GAElBC,KAAK2Q,gBAAkB,CACrBF,eAAgBA,EAAeL,KAAKpQ,MACpC+Q,eAAe,EACfH,cAAc,EACd7L,QAAS,KACT8L,WAAY,KACZG,cAAe,MAIjBhR,KAAKkB,eAAemJ,cAAe,EAKnCrK,KAAKkB,eAAeyD,MAAO,EAEvB5E,IAC+B,mBAAtBA,EAAQkR,YAA0BjR,KAAKkR,WAAanR,EAAQkR,WAE1C,mBAAlBlR,EAAQoR,QAAsBnR,KAAKoR,OAASrR,EAAQoR,QAIjEnR,KAAKiP,GAAG,YAAa/H,GAGvB,SAASA,IACP,IAAIpF,EAAQ9B,KAEe,mBAAhBA,KAAKoR,OACdpR,KAAKoR,QAAO,SAAUtM,EAAIiH,GACxBsF,EAAKvP,EAAOgD,EAAIiH,MAGlBsF,EAAKrR,KAAM,KAAM,MA2DrB,SAASqR,EAAK7N,EAAQsB,EAAIiH,GACxB,GAAIjH,EAAI,OAAOtB,EAAO4B,KAAK,QAASN,GAOpC,GALY,MAARiH,GACFvI,EAAOrE,KAAK4M,GAIVvI,EAAOjD,eAAeV,OAAQ,MAAM,IAAI+H,MAAM,8CAElD,GAAIpE,EAAOmN,gBAAgBC,aAAc,MAAM,IAAIhJ,MAAM,kDAEzD,OAAOpE,EAAOrE,KAAK,MA7IrBI,EAAKC,SAAW,EAAQ,IAGxBD,EAAKC,SAASkC,EAAWpC,GAuEzBoC,EAAU/B,UAAUR,KAAO,SAAUmH,EAAOC,GAE1C,OADAvG,KAAK2Q,gBAAgBI,eAAgB,EAC9BzR,EAAOK,UAAUR,KAAKc,KAAKD,KAAMsG,EAAOC,IAajD7E,EAAU/B,UAAUuR,WAAa,SAAU5K,EAAOC,EAAU/E,GAC1D,MAAM,IAAIoG,MAAM,oCAGlBlG,EAAU/B,UAAUmG,OAAS,SAAUQ,EAAOC,EAAU/E,GACtD,IAAIkP,EAAK1Q,KAAK2Q,gBAId,GAHAD,EAAG3L,QAAUvD,EACbkP,EAAGG,WAAavK,EAChBoK,EAAGM,cAAgBzK,GACdmK,EAAGE,aAAc,CACpB,IAAIE,EAAK9Q,KAAKkB,gBACVwP,EAAGK,eAAiBD,EAAGzG,cAAgByG,EAAGjR,OAASiR,EAAG9P,gBAAehB,KAAK6K,MAAMiG,EAAG9P,iBAO3FU,EAAU/B,UAAUkL,MAAQ,SAAUgB,GACpC,IAAI6E,EAAK1Q,KAAK2Q,gBAEQ,OAAlBD,EAAGG,YAAuBH,EAAG3L,UAAY2L,EAAGE,cAC9CF,EAAGE,cAAe,EAClB5Q,KAAKkR,WAAWR,EAAGG,WAAYH,EAAGM,cAAeN,EAAGD,iBAIpDC,EAAGK,eAAgB,GAIvBrP,EAAU/B,UAAU2B,SAAW,SAAUC,EAAKC,GAC5C,IAAI8P,EAAStR,KAEbV,EAAOK,UAAU2B,SAASrB,KAAKD,KAAMuB,GAAK,SAAUgQ,GAClD/P,EAAG+P,GACHD,EAAOlM,KAAK,c,kBCpMhB,IAAIoM,EAAW,GAAGA,SAElBpS,EAAOC,QAAUsH,MAAMqC,SAAW,SAAUyI,GAC1C,MAA6B,kBAAtBD,EAASvR,KAAKwR,K,iCCCvB,IAAIxO,EAAS,EAAQ,IAAeA,OAChC1D,EAAO,EAAQ,KAMnBH,EAAOC,QAAU,WACf,SAASsK,KAVX,SAAyB+H,EAAUC,GAAe,KAAMD,aAAoBC,GAAgB,MAAM,IAAIxJ,UAAU,qCAW5GyJ,CAAgB5R,KAAM2J,GAEtB3J,KAAK8L,KAAO,KACZ9L,KAAKiN,KAAO,KACZjN,KAAKH,OAAS,EAqDhB,OAlDA8J,EAAWhK,UAAUR,KAAO,SAAcS,GACxC,IAAIoC,EAAQ,CAAE+J,KAAMnM,EAAGmC,KAAM,MACzB/B,KAAKH,OAAS,EAAGG,KAAKiN,KAAKlL,KAAOC,EAAWhC,KAAK8L,KAAO9J,EAC7DhC,KAAKiN,KAAOjL,IACVhC,KAAKH,QAGT8J,EAAWhK,UAAU6L,QAAU,SAAiB5L,GAC9C,IAAIoC,EAAQ,CAAE+J,KAAMnM,EAAGmC,KAAM/B,KAAK8L,MACd,IAAhB9L,KAAKH,SAAcG,KAAKiN,KAAOjL,GACnChC,KAAK8L,KAAO9J,IACVhC,KAAKH,QAGT8J,EAAWhK,UAAU4M,MAAQ,WAC3B,GAAoB,IAAhBvM,KAAKH,OAAT,CACA,IAAIgI,EAAM7H,KAAK8L,KAAKC,KAGpB,OAFoB,IAAhB/L,KAAKH,OAAcG,KAAK8L,KAAO9L,KAAKiN,KAAO,KAAUjN,KAAK8L,KAAO9L,KAAK8L,KAAK/J,OAC7E/B,KAAKH,OACAgI,IAGT8B,EAAWhK,UAAU+M,MAAQ,WAC3B1M,KAAK8L,KAAO9L,KAAKiN,KAAO,KACxBjN,KAAKH,OAAS,GAGhB8J,EAAWhK,UAAU6M,KAAO,SAAcqF,GACxC,GAAoB,IAAhB7R,KAAKH,OAAc,MAAO,GAG9B,IAFA,IAAIgN,EAAI7M,KAAK8L,KACTjE,EAAM,GAAKgF,EAAEd,KACVc,EAAIA,EAAE9K,MACX8F,GAAOgK,EAAIhF,EAAEd,KACd,OAAOlE,GAGV8B,EAAWhK,UAAU8M,OAAS,SAAgBZ,GAC5C,GAAoB,IAAhB7L,KAAKH,OAAc,OAAOoD,EAAO6O,MAAM,GAC3C,GAAoB,IAAhB9R,KAAKH,OAAc,OAAOG,KAAK8L,KAAKC,KAIxC,IAHA,IApDgBmC,EAAK6D,EAAQC,EAoDzBnK,EAAM5E,EAAOkK,YAAYtB,IAAM,GAC/BgB,EAAI7M,KAAK8L,KACT8B,EAAI,EACDf,GAvDSqB,EAwDHrB,EAAEd,KAxDMgG,EAwDAlK,EAxDQmK,EAwDHpE,EAvD5BM,EAAId,KAAK2E,EAAQC,GAwDbpE,GAAKf,EAAEd,KAAKlM,OACZgN,EAAIA,EAAE9K,KAER,OAAO8F,GAGF8B,EA3DQ,GA8DbpK,GAAQA,EAAK0S,SAAW1S,EAAK0S,QAAQC,SACvC9S,EAAOC,QAAQM,UAAUJ,EAAK0S,QAAQC,QAAU,WAC9C,IAAIjT,EAAMM,EAAK0S,QAAQ,CAAEpS,OAAQG,KAAKH,SACtC,OAAOG,KAAKmS,YAAYC,KAAO,IAAMnT,K,iCCjDzCG,EAAOC,QAAUsC,EAEjB,IAAID,EAAY,EAAQ,KAGpBnC,EAAO,EAAQ,KAMnB,SAASoC,EAAY5B,GACnB,KAAMC,gBAAgB2B,GAAc,OAAO,IAAIA,EAAY5B,GAE3D2B,EAAUzB,KAAKD,KAAMD,GARvBR,EAAKC,SAAW,EAAQ,IAGxBD,EAAKC,SAASmC,EAAaD,GAQ3BC,EAAYhC,UAAUuR,WAAa,SAAU5K,EAAOC,EAAU/E,GAC5DA,EAAG,KAAM8E,K,oBC7CXlH,EAAOC,QAAU,EAAQ,M,oBCAzBD,EAAOC,QAAU,EAAQ,M,oBCAzBD,EAAOC,QAAU,EAAQ,KAAcqC,W,oBCAvCtC,EAAOC,QAAU,EAAQ,KAAcsC","file":"yarn.readable-stream.becc34fe6fa559c58c21.js","sourcesContent":["// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a duplex stream is just a stream that is both readable and writable.\n// Since JS doesn't have multiple prototypal inheritance, this class\n// prototypally inherits from Readable, and then parasitically from\n// Writable.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\n/*<replacement>*/\nvar objectKeys = Object.keys || function (obj) {\n  var keys = [];\n  for (var key in obj) {\n    keys.push(key);\n  }return keys;\n};\n/*</replacement>*/\n\nmodule.exports = Duplex;\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nvar Readable = require('./_stream_readable');\nvar Writable = require('./_stream_writable');\n\nutil.inherits(Duplex, Readable);\n\n{\n  // avoid scope creep, the keys array can then be collected\n  var keys = objectKeys(Writable.prototype);\n  for (var v = 0; v < keys.length; v++) {\n    var method = keys[v];\n    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];\n  }\n}\n\nfunction Duplex(options) {\n  if (!(this instanceof Duplex)) return new Duplex(options);\n\n  Readable.call(this, options);\n  Writable.call(this, options);\n\n  if (options && options.readable === false) this.readable = false;\n\n  if (options && options.writable === false) this.writable = false;\n\n  this.allowHalfOpen = true;\n  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;\n\n  this.once('end', onend);\n}\n\nObject.defineProperty(Duplex.prototype, 'writableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._writableState.highWaterMark;\n  }\n});\n\n// the no-half-open enforcer\nfunction onend() {\n  // if we allow half-open state, or if the writable side ended,\n  // then we're ok.\n  if (this.allowHalfOpen || this._writableState.ended) return;\n\n  // no more data can be written.\n  // But allow more writes to happen in this tick.\n  pna.nextTick(onEndNT, this);\n}\n\nfunction onEndNT(self) {\n  self.end();\n}\n\nObject.defineProperty(Duplex.prototype, 'destroyed', {\n  get: function () {\n    if (this._readableState === undefined || this._writableState === undefined) {\n      return false;\n    }\n    return this._readableState.destroyed && this._writableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (this._readableState === undefined || this._writableState === undefined) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._readableState.destroyed = value;\n    this._writableState.destroyed = value;\n  }\n});\n\nDuplex.prototype._destroy = function (err, cb) {\n  this.push(null);\n  this.end();\n\n  pna.nextTick(cb, err);\n};","exports = module.exports = require('./lib/_stream_readable.js');\nexports.Stream = exports;\nexports.Readable = exports;\nexports.Writable = require('./lib/_stream_writable.js');\nexports.Duplex = require('./lib/_stream_duplex.js');\nexports.Transform = require('./lib/_stream_transform.js');\nexports.PassThrough = require('./lib/_stream_passthrough.js');\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// A bit simpler than readable streams.\n// Implement an async ._write(chunk, encoding, cb), and it'll handle all\n// the drain event emission and buffering.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\nmodule.exports = Writable;\n\n/* <replacement> */\nfunction WriteReq(chunk, encoding, cb) {\n  this.chunk = chunk;\n  this.encoding = encoding;\n  this.callback = cb;\n  this.next = null;\n}\n\n// It seems a linked list but it is not\n// there will be only 2 of these for each stream\nfunction CorkedRequest(state) {\n  var _this = this;\n\n  this.next = null;\n  this.entry = null;\n  this.finish = function () {\n    onCorkedFinish(_this, state);\n  };\n}\n/* </replacement> */\n\n/*<replacement>*/\nvar asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;\n/*</replacement>*/\n\n/*<replacement>*/\nvar Duplex;\n/*</replacement>*/\n\nWritable.WritableState = WritableState;\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\n/*<replacement>*/\nvar internalUtil = {\n  deprecate: require('util-deprecate')\n};\n/*</replacement>*/\n\n/*<replacement>*/\nvar Stream = require('./internal/streams/stream');\n/*</replacement>*/\n\n/*<replacement>*/\n\nvar Buffer = require('safe-buffer').Buffer;\nvar OurUint8Array = global.Uint8Array || function () {};\nfunction _uint8ArrayToBuffer(chunk) {\n  return Buffer.from(chunk);\n}\nfunction _isUint8Array(obj) {\n  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\n\n/*</replacement>*/\n\nvar destroyImpl = require('./internal/streams/destroy');\n\nutil.inherits(Writable, Stream);\n\nfunction nop() {}\n\nfunction WritableState(options, stream) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  options = options || {};\n\n  // Duplex streams are both readable and writable, but share\n  // the same options object.\n  // However, some cases require setting options to different\n  // values for the readable and the writable sides of the duplex stream.\n  // These options can be provided separately as readableXXX and writableXXX.\n  var isDuplex = stream instanceof Duplex;\n\n  // object stream flag to indicate whether or not this stream\n  // contains buffers or objects.\n  this.objectMode = !!options.objectMode;\n\n  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;\n\n  // the point at which write() starts returning false\n  // Note: 0 is a valid value, means that we always return false if\n  // the entire buffer is not flushed immediately on write()\n  var hwm = options.highWaterMark;\n  var writableHwm = options.writableHighWaterMark;\n  var defaultHwm = this.objectMode ? 16 : 16 * 1024;\n\n  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;\n\n  // cast to ints.\n  this.highWaterMark = Math.floor(this.highWaterMark);\n\n  // if _final has been called\n  this.finalCalled = false;\n\n  // drain event flag.\n  this.needDrain = false;\n  // at the start of calling end()\n  this.ending = false;\n  // when end() has been called, and returned\n  this.ended = false;\n  // when 'finish' is emitted\n  this.finished = false;\n\n  // has it been destroyed\n  this.destroyed = false;\n\n  // should we decode strings into buffers before passing to _write?\n  // this is here so that some node-core streams can optimize string\n  // handling at a lower level.\n  var noDecode = options.decodeStrings === false;\n  this.decodeStrings = !noDecode;\n\n  // Crypto is kind of old and crusty.  Historically, its default string\n  // encoding is 'binary' so we have to make this configurable.\n  // Everything else in the universe uses 'utf8', though.\n  this.defaultEncoding = options.defaultEncoding || 'utf8';\n\n  // not an actual buffer we keep track of, but a measurement\n  // of how much we're waiting to get pushed to some underlying\n  // socket or file.\n  this.length = 0;\n\n  // a flag to see when we're in the middle of a write.\n  this.writing = false;\n\n  // when true all writes will be buffered until .uncork() call\n  this.corked = 0;\n\n  // a flag to be able to tell if the onwrite cb is called immediately,\n  // or on a later tick.  We set this to true at first, because any\n  // actions that shouldn't happen until \"later\" should generally also\n  // not happen before the first write call.\n  this.sync = true;\n\n  // a flag to know if we're processing previously buffered items, which\n  // may call the _write() callback in the same tick, so that we don't\n  // end up in an overlapped onwrite situation.\n  this.bufferProcessing = false;\n\n  // the callback that's passed to _write(chunk,cb)\n  this.onwrite = function (er) {\n    onwrite(stream, er);\n  };\n\n  // the callback that the user supplies to write(chunk,encoding,cb)\n  this.writecb = null;\n\n  // the amount that is being written when _write is called.\n  this.writelen = 0;\n\n  this.bufferedRequest = null;\n  this.lastBufferedRequest = null;\n\n  // number of pending user-supplied write callbacks\n  // this must be 0 before 'finish' can be emitted\n  this.pendingcb = 0;\n\n  // emit prefinish if the only thing we're waiting for is _write cbs\n  // This is relevant for synchronous Transform streams\n  this.prefinished = false;\n\n  // True if the error was already emitted and should not be thrown again\n  this.errorEmitted = false;\n\n  // count buffered requests\n  this.bufferedRequestCount = 0;\n\n  // allocate the first CorkedRequest, there is always\n  // one allocated and free to use, and we maintain at most two\n  this.corkedRequestsFree = new CorkedRequest(this);\n}\n\nWritableState.prototype.getBuffer = function getBuffer() {\n  var current = this.bufferedRequest;\n  var out = [];\n  while (current) {\n    out.push(current);\n    current = current.next;\n  }\n  return out;\n};\n\n(function () {\n  try {\n    Object.defineProperty(WritableState.prototype, 'buffer', {\n      get: internalUtil.deprecate(function () {\n        return this.getBuffer();\n      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')\n    });\n  } catch (_) {}\n})();\n\n// Test _writableState for inheritance to account for Duplex streams,\n// whose prototype chain only points to Readable.\nvar realHasInstance;\nif (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {\n  realHasInstance = Function.prototype[Symbol.hasInstance];\n  Object.defineProperty(Writable, Symbol.hasInstance, {\n    value: function (object) {\n      if (realHasInstance.call(this, object)) return true;\n      if (this !== Writable) return false;\n\n      return object && object._writableState instanceof WritableState;\n    }\n  });\n} else {\n  realHasInstance = function (object) {\n    return object instanceof this;\n  };\n}\n\nfunction Writable(options) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  // Writable ctor is applied to Duplexes, too.\n  // `realHasInstance` is necessary because using plain `instanceof`\n  // would return false, as no `_writableState` property is attached.\n\n  // Trying to use the custom `instanceof` for Writable here will also break the\n  // Node.js LazyTransform implementation, which has a non-trivial getter for\n  // `_writableState` that would lead to infinite recursion.\n  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {\n    return new Writable(options);\n  }\n\n  this._writableState = new WritableState(options, this);\n\n  // legacy.\n  this.writable = true;\n\n  if (options) {\n    if (typeof options.write === 'function') this._write = options.write;\n\n    if (typeof options.writev === 'function') this._writev = options.writev;\n\n    if (typeof options.destroy === 'function') this._destroy = options.destroy;\n\n    if (typeof options.final === 'function') this._final = options.final;\n  }\n\n  Stream.call(this);\n}\n\n// Otherwise people can pipe Writable streams, which is just wrong.\nWritable.prototype.pipe = function () {\n  this.emit('error', new Error('Cannot pipe, not readable'));\n};\n\nfunction writeAfterEnd(stream, cb) {\n  var er = new Error('write after end');\n  // TODO: defer error events consistently everywhere, not just the cb\n  stream.emit('error', er);\n  pna.nextTick(cb, er);\n}\n\n// Checks that a user-supplied chunk is valid, especially for the particular\n// mode the stream is in. Currently this means that `null` is never accepted\n// and undefined/non-string values are only allowed in object mode.\nfunction validChunk(stream, state, chunk, cb) {\n  var valid = true;\n  var er = false;\n\n  if (chunk === null) {\n    er = new TypeError('May not write null values to stream');\n  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {\n    er = new TypeError('Invalid non-string/buffer chunk');\n  }\n  if (er) {\n    stream.emit('error', er);\n    pna.nextTick(cb, er);\n    valid = false;\n  }\n  return valid;\n}\n\nWritable.prototype.write = function (chunk, encoding, cb) {\n  var state = this._writableState;\n  var ret = false;\n  var isBuf = !state.objectMode && _isUint8Array(chunk);\n\n  if (isBuf && !Buffer.isBuffer(chunk)) {\n    chunk = _uint8ArrayToBuffer(chunk);\n  }\n\n  if (typeof encoding === 'function') {\n    cb = encoding;\n    encoding = null;\n  }\n\n  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;\n\n  if (typeof cb !== 'function') cb = nop;\n\n  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {\n    state.pendingcb++;\n    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);\n  }\n\n  return ret;\n};\n\nWritable.prototype.cork = function () {\n  var state = this._writableState;\n\n  state.corked++;\n};\n\nWritable.prototype.uncork = function () {\n  var state = this._writableState;\n\n  if (state.corked) {\n    state.corked--;\n\n    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);\n  }\n};\n\nWritable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {\n  // node::ParseEncoding() requires lower case.\n  if (typeof encoding === 'string') encoding = encoding.toLowerCase();\n  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);\n  this._writableState.defaultEncoding = encoding;\n  return this;\n};\n\nfunction decodeChunk(state, chunk, encoding) {\n  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {\n    chunk = Buffer.from(chunk, encoding);\n  }\n  return chunk;\n}\n\nObject.defineProperty(Writable.prototype, 'writableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._writableState.highWaterMark;\n  }\n});\n\n// if we're already writing something, then just put this\n// in the queue, and wait our turn.  Otherwise, call _write\n// If we return false, then we need a drain event, so set that flag.\nfunction writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {\n  if (!isBuf) {\n    var newChunk = decodeChunk(state, chunk, encoding);\n    if (chunk !== newChunk) {\n      isBuf = true;\n      encoding = 'buffer';\n      chunk = newChunk;\n    }\n  }\n  var len = state.objectMode ? 1 : chunk.length;\n\n  state.length += len;\n\n  var ret = state.length < state.highWaterMark;\n  // we must ensure that previous needDrain will not be reset to false.\n  if (!ret) state.needDrain = true;\n\n  if (state.writing || state.corked) {\n    var last = state.lastBufferedRequest;\n    state.lastBufferedRequest = {\n      chunk: chunk,\n      encoding: encoding,\n      isBuf: isBuf,\n      callback: cb,\n      next: null\n    };\n    if (last) {\n      last.next = state.lastBufferedRequest;\n    } else {\n      state.bufferedRequest = state.lastBufferedRequest;\n    }\n    state.bufferedRequestCount += 1;\n  } else {\n    doWrite(stream, state, false, len, chunk, encoding, cb);\n  }\n\n  return ret;\n}\n\nfunction doWrite(stream, state, writev, len, chunk, encoding, cb) {\n  state.writelen = len;\n  state.writecb = cb;\n  state.writing = true;\n  state.sync = true;\n  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);\n  state.sync = false;\n}\n\nfunction onwriteError(stream, state, sync, er, cb) {\n  --state.pendingcb;\n\n  if (sync) {\n    // defer the callback if we are being called synchronously\n    // to avoid piling up things on the stack\n    pna.nextTick(cb, er);\n    // this can emit finish, and it will always happen\n    // after error\n    pna.nextTick(finishMaybe, stream, state);\n    stream._writableState.errorEmitted = true;\n    stream.emit('error', er);\n  } else {\n    // the caller expect this to happen before if\n    // it is async\n    cb(er);\n    stream._writableState.errorEmitted = true;\n    stream.emit('error', er);\n    // this can emit finish, but finish must\n    // always follow error\n    finishMaybe(stream, state);\n  }\n}\n\nfunction onwriteStateUpdate(state) {\n  state.writing = false;\n  state.writecb = null;\n  state.length -= state.writelen;\n  state.writelen = 0;\n}\n\nfunction onwrite(stream, er) {\n  var state = stream._writableState;\n  var sync = state.sync;\n  var cb = state.writecb;\n\n  onwriteStateUpdate(state);\n\n  if (er) onwriteError(stream, state, sync, er, cb);else {\n    // Check if we're actually ready to finish, but don't emit yet\n    var finished = needFinish(state);\n\n    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {\n      clearBuffer(stream, state);\n    }\n\n    if (sync) {\n      /*<replacement>*/\n      asyncWrite(afterWrite, stream, state, finished, cb);\n      /*</replacement>*/\n    } else {\n      afterWrite(stream, state, finished, cb);\n    }\n  }\n}\n\nfunction afterWrite(stream, state, finished, cb) {\n  if (!finished) onwriteDrain(stream, state);\n  state.pendingcb--;\n  cb();\n  finishMaybe(stream, state);\n}\n\n// Must force callback to be called on nextTick, so that we don't\n// emit 'drain' before the write() consumer gets the 'false' return\n// value, and has a chance to attach a 'drain' listener.\nfunction onwriteDrain(stream, state) {\n  if (state.length === 0 && state.needDrain) {\n    state.needDrain = false;\n    stream.emit('drain');\n  }\n}\n\n// if there's something in the buffer waiting, then process it\nfunction clearBuffer(stream, state) {\n  state.bufferProcessing = true;\n  var entry = state.bufferedRequest;\n\n  if (stream._writev && entry && entry.next) {\n    // Fast case, write everything using _writev()\n    var l = state.bufferedRequestCount;\n    var buffer = new Array(l);\n    var holder = state.corkedRequestsFree;\n    holder.entry = entry;\n\n    var count = 0;\n    var allBuffers = true;\n    while (entry) {\n      buffer[count] = entry;\n      if (!entry.isBuf) allBuffers = false;\n      entry = entry.next;\n      count += 1;\n    }\n    buffer.allBuffers = allBuffers;\n\n    doWrite(stream, state, true, state.length, buffer, '', holder.finish);\n\n    // doWrite is almost always async, defer these to save a bit of time\n    // as the hot path ends with doWrite\n    state.pendingcb++;\n    state.lastBufferedRequest = null;\n    if (holder.next) {\n      state.corkedRequestsFree = holder.next;\n      holder.next = null;\n    } else {\n      state.corkedRequestsFree = new CorkedRequest(state);\n    }\n    state.bufferedRequestCount = 0;\n  } else {\n    // Slow case, write chunks one-by-one\n    while (entry) {\n      var chunk = entry.chunk;\n      var encoding = entry.encoding;\n      var cb = entry.callback;\n      var len = state.objectMode ? 1 : chunk.length;\n\n      doWrite(stream, state, false, len, chunk, encoding, cb);\n      entry = entry.next;\n      state.bufferedRequestCount--;\n      // if we didn't call the onwrite immediately, then\n      // it means that we need to wait until it does.\n      // also, that means that the chunk and cb are currently\n      // being processed, so move the buffer counter past them.\n      if (state.writing) {\n        break;\n      }\n    }\n\n    if (entry === null) state.lastBufferedRequest = null;\n  }\n\n  state.bufferedRequest = entry;\n  state.bufferProcessing = false;\n}\n\nWritable.prototype._write = function (chunk, encoding, cb) {\n  cb(new Error('_write() is not implemented'));\n};\n\nWritable.prototype._writev = null;\n\nWritable.prototype.end = function (chunk, encoding, cb) {\n  var state = this._writableState;\n\n  if (typeof chunk === 'function') {\n    cb = chunk;\n    chunk = null;\n    encoding = null;\n  } else if (typeof encoding === 'function') {\n    cb = encoding;\n    encoding = null;\n  }\n\n  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);\n\n  // .end() fully uncorks\n  if (state.corked) {\n    state.corked = 1;\n    this.uncork();\n  }\n\n  // ignore unnecessary end() calls.\n  if (!state.ending && !state.finished) endWritable(this, state, cb);\n};\n\nfunction needFinish(state) {\n  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;\n}\nfunction callFinal(stream, state) {\n  stream._final(function (err) {\n    state.pendingcb--;\n    if (err) {\n      stream.emit('error', err);\n    }\n    state.prefinished = true;\n    stream.emit('prefinish');\n    finishMaybe(stream, state);\n  });\n}\nfunction prefinish(stream, state) {\n  if (!state.prefinished && !state.finalCalled) {\n    if (typeof stream._final === 'function') {\n      state.pendingcb++;\n      state.finalCalled = true;\n      pna.nextTick(callFinal, stream, state);\n    } else {\n      state.prefinished = true;\n      stream.emit('prefinish');\n    }\n  }\n}\n\nfunction finishMaybe(stream, state) {\n  var need = needFinish(state);\n  if (need) {\n    prefinish(stream, state);\n    if (state.pendingcb === 0) {\n      state.finished = true;\n      stream.emit('finish');\n    }\n  }\n  return need;\n}\n\nfunction endWritable(stream, state, cb) {\n  state.ending = true;\n  finishMaybe(stream, state);\n  if (cb) {\n    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);\n  }\n  state.ended = true;\n  stream.writable = false;\n}\n\nfunction onCorkedFinish(corkReq, state, err) {\n  var entry = corkReq.entry;\n  corkReq.entry = null;\n  while (entry) {\n    var cb = entry.callback;\n    state.pendingcb--;\n    cb(err);\n    entry = entry.next;\n  }\n  if (state.corkedRequestsFree) {\n    state.corkedRequestsFree.next = corkReq;\n  } else {\n    state.corkedRequestsFree = corkReq;\n  }\n}\n\nObject.defineProperty(Writable.prototype, 'destroyed', {\n  get: function () {\n    if (this._writableState === undefined) {\n      return false;\n    }\n    return this._writableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (!this._writableState) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._writableState.destroyed = value;\n  }\n});\n\nWritable.prototype.destroy = destroyImpl.destroy;\nWritable.prototype._undestroy = destroyImpl.undestroy;\nWritable.prototype._destroy = function (err, cb) {\n  this.end();\n  cb(err);\n};","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\nmodule.exports = Readable;\n\n/*<replacement>*/\nvar isArray = require('isarray');\n/*</replacement>*/\n\n/*<replacement>*/\nvar Duplex;\n/*</replacement>*/\n\nReadable.ReadableState = ReadableState;\n\n/*<replacement>*/\nvar EE = require('events').EventEmitter;\n\nvar EElistenerCount = function (emitter, type) {\n  return emitter.listeners(type).length;\n};\n/*</replacement>*/\n\n/*<replacement>*/\nvar Stream = require('./internal/streams/stream');\n/*</replacement>*/\n\n/*<replacement>*/\n\nvar Buffer = require('safe-buffer').Buffer;\nvar OurUint8Array = global.Uint8Array || function () {};\nfunction _uint8ArrayToBuffer(chunk) {\n  return Buffer.from(chunk);\n}\nfunction _isUint8Array(obj) {\n  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\n\n/*</replacement>*/\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\n/*<replacement>*/\nvar debugUtil = require('util');\nvar debug = void 0;\nif (debugUtil && debugUtil.debuglog) {\n  debug = debugUtil.debuglog('stream');\n} else {\n  debug = function () {};\n}\n/*</replacement>*/\n\nvar BufferList = require('./internal/streams/BufferList');\nvar destroyImpl = require('./internal/streams/destroy');\nvar StringDecoder;\n\nutil.inherits(Readable, Stream);\n\nvar kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];\n\nfunction prependListener(emitter, event, fn) {\n  // Sadly this is not cacheable as some libraries bundle their own\n  // event emitter implementation with them.\n  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);\n\n  // This is a hack to make sure that our error handler is attached before any\n  // userland ones.  NEVER DO THIS. This is here only because this code needs\n  // to continue to work with older versions of Node.js that do not include\n  // the prependListener() method. The goal is to eventually remove this hack.\n  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]];\n}\n\nfunction ReadableState(options, stream) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  options = options || {};\n\n  // Duplex streams are both readable and writable, but share\n  // the same options object.\n  // However, some cases require setting options to different\n  // values for the readable and the writable sides of the duplex stream.\n  // These options can be provided separately as readableXXX and writableXXX.\n  var isDuplex = stream instanceof Duplex;\n\n  // object stream flag. Used to make read(n) ignore n and to\n  // make all the buffer merging and length checks go away\n  this.objectMode = !!options.objectMode;\n\n  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;\n\n  // the point at which it stops calling _read() to fill the buffer\n  // Note: 0 is a valid value, means \"don't call _read preemptively ever\"\n  var hwm = options.highWaterMark;\n  var readableHwm = options.readableHighWaterMark;\n  var defaultHwm = this.objectMode ? 16 : 16 * 1024;\n\n  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;\n\n  // cast to ints.\n  this.highWaterMark = Math.floor(this.highWaterMark);\n\n  // A linked list is used to store data chunks instead of an array because the\n  // linked list can remove elements from the beginning faster than\n  // array.shift()\n  this.buffer = new BufferList();\n  this.length = 0;\n  this.pipes = null;\n  this.pipesCount = 0;\n  this.flowing = null;\n  this.ended = false;\n  this.endEmitted = false;\n  this.reading = false;\n\n  // a flag to be able to tell if the event 'readable'/'data' is emitted\n  // immediately, or on a later tick.  We set this to true at first, because\n  // any actions that shouldn't happen until \"later\" should generally also\n  // not happen before the first read call.\n  this.sync = true;\n\n  // whenever we return null, then we set a flag to say\n  // that we're awaiting a 'readable' event emission.\n  this.needReadable = false;\n  this.emittedReadable = false;\n  this.readableListening = false;\n  this.resumeScheduled = false;\n\n  // has it been destroyed\n  this.destroyed = false;\n\n  // Crypto is kind of old and crusty.  Historically, its default string\n  // encoding is 'binary' so we have to make this configurable.\n  // Everything else in the universe uses 'utf8', though.\n  this.defaultEncoding = options.defaultEncoding || 'utf8';\n\n  // the number of writers that are awaiting a drain event in .pipe()s\n  this.awaitDrain = 0;\n\n  // if true, a maybeReadMore has been scheduled\n  this.readingMore = false;\n\n  this.decoder = null;\n  this.encoding = null;\n  if (options.encoding) {\n    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;\n    this.decoder = new StringDecoder(options.encoding);\n    this.encoding = options.encoding;\n  }\n}\n\nfunction Readable(options) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  if (!(this instanceof Readable)) return new Readable(options);\n\n  this._readableState = new ReadableState(options, this);\n\n  // legacy\n  this.readable = true;\n\n  if (options) {\n    if (typeof options.read === 'function') this._read = options.read;\n\n    if (typeof options.destroy === 'function') this._destroy = options.destroy;\n  }\n\n  Stream.call(this);\n}\n\nObject.defineProperty(Readable.prototype, 'destroyed', {\n  get: function () {\n    if (this._readableState === undefined) {\n      return false;\n    }\n    return this._readableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (!this._readableState) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._readableState.destroyed = value;\n  }\n});\n\nReadable.prototype.destroy = destroyImpl.destroy;\nReadable.prototype._undestroy = destroyImpl.undestroy;\nReadable.prototype._destroy = function (err, cb) {\n  this.push(null);\n  cb(err);\n};\n\n// Manually shove something into the read() buffer.\n// This returns true if the highWaterMark has not been hit yet,\n// similar to how Writable.write() returns true if you should\n// write() some more.\nReadable.prototype.push = function (chunk, encoding) {\n  var state = this._readableState;\n  var skipChunkCheck;\n\n  if (!state.objectMode) {\n    if (typeof chunk === 'string') {\n      encoding = encoding || state.defaultEncoding;\n      if (encoding !== state.encoding) {\n        chunk = Buffer.from(chunk, encoding);\n        encoding = '';\n      }\n      skipChunkCheck = true;\n    }\n  } else {\n    skipChunkCheck = true;\n  }\n\n  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);\n};\n\n// Unshift should *always* be something directly out of read()\nReadable.prototype.unshift = function (chunk) {\n  return readableAddChunk(this, chunk, null, true, false);\n};\n\nfunction readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {\n  var state = stream._readableState;\n  if (chunk === null) {\n    state.reading = false;\n    onEofChunk(stream, state);\n  } else {\n    var er;\n    if (!skipChunkCheck) er = chunkInvalid(state, chunk);\n    if (er) {\n      stream.emit('error', er);\n    } else if (state.objectMode || chunk && chunk.length > 0) {\n      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {\n        chunk = _uint8ArrayToBuffer(chunk);\n      }\n\n      if (addToFront) {\n        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);\n      } else if (state.ended) {\n        stream.emit('error', new Error('stream.push() after EOF'));\n      } else {\n        state.reading = false;\n        if (state.decoder && !encoding) {\n          chunk = state.decoder.write(chunk);\n          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);\n        } else {\n          addChunk(stream, state, chunk, false);\n        }\n      }\n    } else if (!addToFront) {\n      state.reading = false;\n    }\n  }\n\n  return needMoreData(state);\n}\n\nfunction addChunk(stream, state, chunk, addToFront) {\n  if (state.flowing && state.length === 0 && !state.sync) {\n    stream.emit('data', chunk);\n    stream.read(0);\n  } else {\n    // update the buffer info.\n    state.length += state.objectMode ? 1 : chunk.length;\n    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);\n\n    if (state.needReadable) emitReadable(stream);\n  }\n  maybeReadMore(stream, state);\n}\n\nfunction chunkInvalid(state, chunk) {\n  var er;\n  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {\n    er = new TypeError('Invalid non-string/buffer chunk');\n  }\n  return er;\n}\n\n// if it's past the high water mark, we can push in some more.\n// Also, if we have no data yet, we can stand some\n// more bytes.  This is to work around cases where hwm=0,\n// such as the repl.  Also, if the push() triggered a\n// readable event, and the user called read(largeNumber) such that\n// needReadable was set, then we ought to push more, so that another\n// 'readable' event will be triggered.\nfunction needMoreData(state) {\n  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);\n}\n\nReadable.prototype.isPaused = function () {\n  return this._readableState.flowing === false;\n};\n\n// backwards compatibility.\nReadable.prototype.setEncoding = function (enc) {\n  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;\n  this._readableState.decoder = new StringDecoder(enc);\n  this._readableState.encoding = enc;\n  return this;\n};\n\n// Don't raise the hwm > 8MB\nvar MAX_HWM = 0x800000;\nfunction computeNewHighWaterMark(n) {\n  if (n >= MAX_HWM) {\n    n = MAX_HWM;\n  } else {\n    // Get the next highest power of 2 to prevent increasing hwm excessively in\n    // tiny amounts\n    n--;\n    n |= n >>> 1;\n    n |= n >>> 2;\n    n |= n >>> 4;\n    n |= n >>> 8;\n    n |= n >>> 16;\n    n++;\n  }\n  return n;\n}\n\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction howMuchToRead(n, state) {\n  if (n <= 0 || state.length === 0 && state.ended) return 0;\n  if (state.objectMode) return 1;\n  if (n !== n) {\n    // Only flow one buffer at a time\n    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;\n  }\n  // If we're asking for more than the current hwm, then raise the hwm.\n  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);\n  if (n <= state.length) return n;\n  // Don't have enough\n  if (!state.ended) {\n    state.needReadable = true;\n    return 0;\n  }\n  return state.length;\n}\n\n// you can override either this method, or the async _read(n) below.\nReadable.prototype.read = function (n) {\n  debug('read', n);\n  n = parseInt(n, 10);\n  var state = this._readableState;\n  var nOrig = n;\n\n  if (n !== 0) state.emittedReadable = false;\n\n  // if we're doing read(0) to trigger a readable event, but we\n  // already have a bunch of data in the buffer, then just trigger\n  // the 'readable' event and move on.\n  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {\n    debug('read: emitReadable', state.length, state.ended);\n    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);\n    return null;\n  }\n\n  n = howMuchToRead(n, state);\n\n  // if we've ended, and we're now clear, then finish it up.\n  if (n === 0 && state.ended) {\n    if (state.length === 0) endReadable(this);\n    return null;\n  }\n\n  // All the actual chunk generation logic needs to be\n  // *below* the call to _read.  The reason is that in certain\n  // synthetic stream cases, such as passthrough streams, _read\n  // may be a completely synchronous operation which may change\n  // the state of the read buffer, providing enough data when\n  // before there was *not* enough.\n  //\n  // So, the steps are:\n  // 1. Figure out what the state of things will be after we do\n  // a read from the buffer.\n  //\n  // 2. If that resulting state will trigger a _read, then call _read.\n  // Note that this may be asynchronous, or synchronous.  Yes, it is\n  // deeply ugly to write APIs this way, but that still doesn't mean\n  // that the Readable class should behave improperly, as streams are\n  // designed to be sync/async agnostic.\n  // Take note if the _read call is sync or async (ie, if the read call\n  // has returned yet), so that we know whether or not it's safe to emit\n  // 'readable' etc.\n  //\n  // 3. Actually pull the requested chunks out of the buffer and return.\n\n  // if we need a readable event, then we need to do some reading.\n  var doRead = state.needReadable;\n  debug('need readable', doRead);\n\n  // if we currently have less than the highWaterMark, then also read some\n  if (state.length === 0 || state.length - n < state.highWaterMark) {\n    doRead = true;\n    debug('length less than watermark', doRead);\n  }\n\n  // however, if we've ended, then there's no point, and if we're already\n  // reading, then it's unnecessary.\n  if (state.ended || state.reading) {\n    doRead = false;\n    debug('reading or ended', doRead);\n  } else if (doRead) {\n    debug('do read');\n    state.reading = true;\n    state.sync = true;\n    // if the length is currently zero, then we *need* a readable event.\n    if (state.length === 0) state.needReadable = true;\n    // call internal read method\n    this._read(state.highWaterMark);\n    state.sync = false;\n    // If _read pushed data synchronously, then `reading` will be false,\n    // and we need to re-evaluate how much data we can return to the user.\n    if (!state.reading) n = howMuchToRead(nOrig, state);\n  }\n\n  var ret;\n  if (n > 0) ret = fromList(n, state);else ret = null;\n\n  if (ret === null) {\n    state.needReadable = true;\n    n = 0;\n  } else {\n    state.length -= n;\n  }\n\n  if (state.length === 0) {\n    // If we have nothing in the buffer, then we want to know\n    // as soon as we *do* get something into the buffer.\n    if (!state.ended) state.needReadable = true;\n\n    // If we tried to read() past the EOF, then emit end on the next tick.\n    if (nOrig !== n && state.ended) endReadable(this);\n  }\n\n  if (ret !== null) this.emit('data', ret);\n\n  return ret;\n};\n\nfunction onEofChunk(stream, state) {\n  if (state.ended) return;\n  if (state.decoder) {\n    var chunk = state.decoder.end();\n    if (chunk && chunk.length) {\n      state.buffer.push(chunk);\n      state.length += state.objectMode ? 1 : chunk.length;\n    }\n  }\n  state.ended = true;\n\n  // emit 'readable' now to make sure it gets picked up.\n  emitReadable(stream);\n}\n\n// Don't emit readable right away in sync mode, because this can trigger\n// another read() call => stack overflow.  This way, it might trigger\n// a nextTick recursion warning, but that's not so bad.\nfunction emitReadable(stream) {\n  var state = stream._readableState;\n  state.needReadable = false;\n  if (!state.emittedReadable) {\n    debug('emitReadable', state.flowing);\n    state.emittedReadable = true;\n    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);\n  }\n}\n\nfunction emitReadable_(stream) {\n  debug('emit readable');\n  stream.emit('readable');\n  flow(stream);\n}\n\n// at this point, the user has presumably seen the 'readable' event,\n// and called read() to consume some data.  that may have triggered\n// in turn another _read(n) call, in which case reading = true if\n// it's in progress.\n// However, if we're not ended, or reading, and the length < hwm,\n// then go ahead and try to read some more preemptively.\nfunction maybeReadMore(stream, state) {\n  if (!state.readingMore) {\n    state.readingMore = true;\n    pna.nextTick(maybeReadMore_, stream, state);\n  }\n}\n\nfunction maybeReadMore_(stream, state) {\n  var len = state.length;\n  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {\n    debug('maybeReadMore read 0');\n    stream.read(0);\n    if (len === state.length)\n      // didn't get any data, stop spinning.\n      break;else len = state.length;\n  }\n  state.readingMore = false;\n}\n\n// abstract method.  to be overridden in specific implementation classes.\n// call cb(er, data) where data is <= n in length.\n// for virtual (non-string, non-buffer) streams, \"length\" is somewhat\n// arbitrary, and perhaps not very meaningful.\nReadable.prototype._read = function (n) {\n  this.emit('error', new Error('_read() is not implemented'));\n};\n\nReadable.prototype.pipe = function (dest, pipeOpts) {\n  var src = this;\n  var state = this._readableState;\n\n  switch (state.pipesCount) {\n    case 0:\n      state.pipes = dest;\n      break;\n    case 1:\n      state.pipes = [state.pipes, dest];\n      break;\n    default:\n      state.pipes.push(dest);\n      break;\n  }\n  state.pipesCount += 1;\n  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);\n\n  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;\n\n  var endFn = doEnd ? onend : unpipe;\n  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);\n\n  dest.on('unpipe', onunpipe);\n  function onunpipe(readable, unpipeInfo) {\n    debug('onunpipe');\n    if (readable === src) {\n      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {\n        unpipeInfo.hasUnpiped = true;\n        cleanup();\n      }\n    }\n  }\n\n  function onend() {\n    debug('onend');\n    dest.end();\n  }\n\n  // when the dest drains, it reduces the awaitDrain counter\n  // on the source.  This would be more elegant with a .once()\n  // handler in flow(), but adding and removing repeatedly is\n  // too slow.\n  var ondrain = pipeOnDrain(src);\n  dest.on('drain', ondrain);\n\n  var cleanedUp = false;\n  function cleanup() {\n    debug('cleanup');\n    // cleanup event handlers once the pipe is broken\n    dest.removeListener('close', onclose);\n    dest.removeListener('finish', onfinish);\n    dest.removeListener('drain', ondrain);\n    dest.removeListener('error', onerror);\n    dest.removeListener('unpipe', onunpipe);\n    src.removeListener('end', onend);\n    src.removeListener('end', unpipe);\n    src.removeListener('data', ondata);\n\n    cleanedUp = true;\n\n    // if the reader is waiting for a drain event from this\n    // specific writer, then it would cause it to never start\n    // flowing again.\n    // So, if this is awaiting a drain, then we just call it now.\n    // If we don't know, then assume that we are waiting for one.\n    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();\n  }\n\n  // If the user pushes more data while we're writing to dest then we'll end up\n  // in ondata again. However, we only want to increase awaitDrain once because\n  // dest will only emit one 'drain' event for the multiple writes.\n  // => Introduce a guard on increasing awaitDrain.\n  var increasedAwaitDrain = false;\n  src.on('data', ondata);\n  function ondata(chunk) {\n    debug('ondata');\n    increasedAwaitDrain = false;\n    var ret = dest.write(chunk);\n    if (false === ret && !increasedAwaitDrain) {\n      // If the user unpiped during `dest.write()`, it is possible\n      // to get stuck in a permanently paused state if that write\n      // also returned false.\n      // => Check whether `dest` is still a piping destination.\n      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {\n        debug('false write response, pause', src._readableState.awaitDrain);\n        src._readableState.awaitDrain++;\n        increasedAwaitDrain = true;\n      }\n      src.pause();\n    }\n  }\n\n  // if the dest has an error, then stop piping into it.\n  // however, don't suppress the throwing behavior for this.\n  function onerror(er) {\n    debug('onerror', er);\n    unpipe();\n    dest.removeListener('error', onerror);\n    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);\n  }\n\n  // Make sure our error handler is attached before userland ones.\n  prependListener(dest, 'error', onerror);\n\n  // Both close and finish should trigger unpipe, but only once.\n  function onclose() {\n    dest.removeListener('finish', onfinish);\n    unpipe();\n  }\n  dest.once('close', onclose);\n  function onfinish() {\n    debug('onfinish');\n    dest.removeListener('close', onclose);\n    unpipe();\n  }\n  dest.once('finish', onfinish);\n\n  function unpipe() {\n    debug('unpipe');\n    src.unpipe(dest);\n  }\n\n  // tell the dest that it's being piped to\n  dest.emit('pipe', src);\n\n  // start the flow if it hasn't been started already.\n  if (!state.flowing) {\n    debug('pipe resume');\n    src.resume();\n  }\n\n  return dest;\n};\n\nfunction pipeOnDrain(src) {\n  return function () {\n    var state = src._readableState;\n    debug('pipeOnDrain', state.awaitDrain);\n    if (state.awaitDrain) state.awaitDrain--;\n    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {\n      state.flowing = true;\n      flow(src);\n    }\n  };\n}\n\nReadable.prototype.unpipe = function (dest) {\n  var state = this._readableState;\n  var unpipeInfo = { hasUnpiped: false };\n\n  // if we're not piping anywhere, then do nothing.\n  if (state.pipesCount === 0) return this;\n\n  // just one destination.  most common case.\n  if (state.pipesCount === 1) {\n    // passed in one, but it's not the right one.\n    if (dest && dest !== state.pipes) return this;\n\n    if (!dest) dest = state.pipes;\n\n    // got a match.\n    state.pipes = null;\n    state.pipesCount = 0;\n    state.flowing = false;\n    if (dest) dest.emit('unpipe', this, unpipeInfo);\n    return this;\n  }\n\n  // slow case. multiple pipe destinations.\n\n  if (!dest) {\n    // remove all.\n    var dests = state.pipes;\n    var len = state.pipesCount;\n    state.pipes = null;\n    state.pipesCount = 0;\n    state.flowing = false;\n\n    for (var i = 0; i < len; i++) {\n      dests[i].emit('unpipe', this, unpipeInfo);\n    }return this;\n  }\n\n  // try to find the right one.\n  var index = indexOf(state.pipes, dest);\n  if (index === -1) return this;\n\n  state.pipes.splice(index, 1);\n  state.pipesCount -= 1;\n  if (state.pipesCount === 1) state.pipes = state.pipes[0];\n\n  dest.emit('unpipe', this, unpipeInfo);\n\n  return this;\n};\n\n// set up data events if they are asked for\n// Ensure readable listeners eventually get something\nReadable.prototype.on = function (ev, fn) {\n  var res = Stream.prototype.on.call(this, ev, fn);\n\n  if (ev === 'data') {\n    // Start flowing on next tick if stream isn't explicitly paused\n    if (this._readableState.flowing !== false) this.resume();\n  } else if (ev === 'readable') {\n    var state = this._readableState;\n    if (!state.endEmitted && !state.readableListening) {\n      state.readableListening = state.needReadable = true;\n      state.emittedReadable = false;\n      if (!state.reading) {\n        pna.nextTick(nReadingNextTick, this);\n      } else if (state.length) {\n        emitReadable(this);\n      }\n    }\n  }\n\n  return res;\n};\nReadable.prototype.addListener = Readable.prototype.on;\n\nfunction nReadingNextTick(self) {\n  debug('readable nexttick read 0');\n  self.read(0);\n}\n\n// pause() and resume() are remnants of the legacy readable stream API\n// If the user uses them, then switch into old mode.\nReadable.prototype.resume = function () {\n  var state = this._readableState;\n  if (!state.flowing) {\n    debug('resume');\n    state.flowing = true;\n    resume(this, state);\n  }\n  return this;\n};\n\nfunction resume(stream, state) {\n  if (!state.resumeScheduled) {\n    state.resumeScheduled = true;\n    pna.nextTick(resume_, stream, state);\n  }\n}\n\nfunction resume_(stream, state) {\n  if (!state.reading) {\n    debug('resume read 0');\n    stream.read(0);\n  }\n\n  state.resumeScheduled = false;\n  state.awaitDrain = 0;\n  stream.emit('resume');\n  flow(stream);\n  if (state.flowing && !state.reading) stream.read(0);\n}\n\nReadable.prototype.pause = function () {\n  debug('call pause flowing=%j', this._readableState.flowing);\n  if (false !== this._readableState.flowing) {\n    debug('pause');\n    this._readableState.flowing = false;\n    this.emit('pause');\n  }\n  return this;\n};\n\nfunction flow(stream) {\n  var state = stream._readableState;\n  debug('flow', state.flowing);\n  while (state.flowing && stream.read() !== null) {}\n}\n\n// wrap an old-style stream as the async data source.\n// This is *not* part of the readable stream interface.\n// It is an ugly unfortunate mess of history.\nReadable.prototype.wrap = function (stream) {\n  var _this = this;\n\n  var state = this._readableState;\n  var paused = false;\n\n  stream.on('end', function () {\n    debug('wrapped end');\n    if (state.decoder && !state.ended) {\n      var chunk = state.decoder.end();\n      if (chunk && chunk.length) _this.push(chunk);\n    }\n\n    _this.push(null);\n  });\n\n  stream.on('data', function (chunk) {\n    debug('wrapped data');\n    if (state.decoder) chunk = state.decoder.write(chunk);\n\n    // don't skip over falsy values in objectMode\n    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;\n\n    var ret = _this.push(chunk);\n    if (!ret) {\n      paused = true;\n      stream.pause();\n    }\n  });\n\n  // proxy all the other methods.\n  // important when wrapping filters and duplexes.\n  for (var i in stream) {\n    if (this[i] === undefined && typeof stream[i] === 'function') {\n      this[i] = function (method) {\n        return function () {\n          return stream[method].apply(stream, arguments);\n        };\n      }(i);\n    }\n  }\n\n  // proxy certain important events.\n  for (var n = 0; n < kProxyEvents.length; n++) {\n    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));\n  }\n\n  // when we try to consume some more bytes, simply unpause the\n  // underlying stream.\n  this._read = function (n) {\n    debug('wrapped _read', n);\n    if (paused) {\n      paused = false;\n      stream.resume();\n    }\n  };\n\n  return this;\n};\n\nObject.defineProperty(Readable.prototype, 'readableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._readableState.highWaterMark;\n  }\n});\n\n// exposed for testing purposes only.\nReadable._fromList = fromList;\n\n// Pluck off n bytes from an array of buffers.\n// Length is the combined lengths of all the buffers in the list.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction fromList(n, state) {\n  // nothing buffered\n  if (state.length === 0) return null;\n\n  var ret;\n  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {\n    // read it all, truncate the list\n    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);\n    state.buffer.clear();\n  } else {\n    // read part of list\n    ret = fromListPartial(n, state.buffer, state.decoder);\n  }\n\n  return ret;\n}\n\n// Extracts only enough buffered data to satisfy the amount requested.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction fromListPartial(n, list, hasStrings) {\n  var ret;\n  if (n < list.head.data.length) {\n    // slice is the same for buffers and strings\n    ret = list.head.data.slice(0, n);\n    list.head.data = list.head.data.slice(n);\n  } else if (n === list.head.data.length) {\n    // first chunk is a perfect match\n    ret = list.shift();\n  } else {\n    // result spans more than one buffer\n    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);\n  }\n  return ret;\n}\n\n// Copies a specified amount of characters from the list of buffered data\n// chunks.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction copyFromBufferString(n, list) {\n  var p = list.head;\n  var c = 1;\n  var ret = p.data;\n  n -= ret.length;\n  while (p = p.next) {\n    var str = p.data;\n    var nb = n > str.length ? str.length : n;\n    if (nb === str.length) ret += str;else ret += str.slice(0, n);\n    n -= nb;\n    if (n === 0) {\n      if (nb === str.length) {\n        ++c;\n        if (p.next) list.head = p.next;else list.head = list.tail = null;\n      } else {\n        list.head = p;\n        p.data = str.slice(nb);\n      }\n      break;\n    }\n    ++c;\n  }\n  list.length -= c;\n  return ret;\n}\n\n// Copies a specified amount of bytes from the list of buffered data chunks.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction copyFromBuffer(n, list) {\n  var ret = Buffer.allocUnsafe(n);\n  var p = list.head;\n  var c = 1;\n  p.data.copy(ret);\n  n -= p.data.length;\n  while (p = p.next) {\n    var buf = p.data;\n    var nb = n > buf.length ? buf.length : n;\n    buf.copy(ret, ret.length - n, 0, nb);\n    n -= nb;\n    if (n === 0) {\n      if (nb === buf.length) {\n        ++c;\n        if (p.next) list.head = p.next;else list.head = list.tail = null;\n      } else {\n        list.head = p;\n        p.data = buf.slice(nb);\n      }\n      break;\n    }\n    ++c;\n  }\n  list.length -= c;\n  return ret;\n}\n\nfunction endReadable(stream) {\n  var state = stream._readableState;\n\n  // If we get here before consuming all the bytes, then that is a\n  // bug in node.  Should never happen.\n  if (state.length > 0) throw new Error('\"endReadable()\" called on non-empty stream');\n\n  if (!state.endEmitted) {\n    state.ended = true;\n    pna.nextTick(endReadableNT, state, stream);\n  }\n}\n\nfunction endReadableNT(state, stream) {\n  // Check that we didn't get one last unshift.\n  if (!state.endEmitted && state.length === 0) {\n    state.endEmitted = true;\n    stream.readable = false;\n    stream.emit('end');\n  }\n}\n\nfunction indexOf(xs, x) {\n  for (var i = 0, l = xs.length; i < l; i++) {\n    if (xs[i] === x) return i;\n  }\n  return -1;\n}","module.exports = require('events').EventEmitter;\n","'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\n// undocumented cb() API, needed for core, not for public API\nfunction destroy(err, cb) {\n  var _this = this;\n\n  var readableDestroyed = this._readableState && this._readableState.destroyed;\n  var writableDestroyed = this._writableState && this._writableState.destroyed;\n\n  if (readableDestroyed || writableDestroyed) {\n    if (cb) {\n      cb(err);\n    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {\n      pna.nextTick(emitErrorNT, this, err);\n    }\n    return this;\n  }\n\n  // we set destroyed to true before firing error callbacks in order\n  // to make it re-entrance safe in case destroy() is called within callbacks\n\n  if (this._readableState) {\n    this._readableState.destroyed = true;\n  }\n\n  // if this is a duplex stream mark the writable part as destroyed as well\n  if (this._writableState) {\n    this._writableState.destroyed = true;\n  }\n\n  this._destroy(err || null, function (err) {\n    if (!cb && err) {\n      pna.nextTick(emitErrorNT, _this, err);\n      if (_this._writableState) {\n        _this._writableState.errorEmitted = true;\n      }\n    } else if (cb) {\n      cb(err);\n    }\n  });\n\n  return this;\n}\n\nfunction undestroy() {\n  if (this._readableState) {\n    this._readableState.destroyed = false;\n    this._readableState.reading = false;\n    this._readableState.ended = false;\n    this._readableState.endEmitted = false;\n  }\n\n  if (this._writableState) {\n    this._writableState.destroyed = false;\n    this._writableState.ended = false;\n    this._writableState.ending = false;\n    this._writableState.finished = false;\n    this._writableState.errorEmitted = false;\n  }\n}\n\nfunction emitErrorNT(self, err) {\n  self.emit('error', err);\n}\n\nmodule.exports = {\n  destroy: destroy,\n  undestroy: undestroy\n};","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a transform stream is a readable/writable stream where you do\n// something with the data.  Sometimes it's called a \"filter\",\n// but that's not a great name for it, since that implies a thing where\n// some bits pass through, and others are simply ignored.  (That would\n// be a valid example of a transform, of course.)\n//\n// While the output is causally related to the input, it's not a\n// necessarily symmetric or synchronous transformation.  For example,\n// a zlib stream might take multiple plain-text writes(), and then\n// emit a single compressed chunk some time in the future.\n//\n// Here's how this works:\n//\n// The Transform stream has all the aspects of the readable and writable\n// stream classes.  When you write(chunk), that calls _write(chunk,cb)\n// internally, and returns false if there's a lot of pending writes\n// buffered up.  When you call read(), that calls _read(n) until\n// there's enough pending readable data buffered up.\n//\n// In a transform stream, the written data is placed in a buffer.  When\n// _read(n) is called, it transforms the queued up data, calling the\n// buffered _write cb's as it consumes chunks.  If consuming a single\n// written chunk would result in multiple output chunks, then the first\n// outputted bit calls the readcb, and subsequent chunks just go into\n// the read buffer, and will cause it to emit 'readable' if necessary.\n//\n// This way, back-pressure is actually determined by the reading side,\n// since _read has to be called to start processing a new chunk.  However,\n// a pathological inflate type of transform can cause excessive buffering\n// here.  For example, imagine a stream where every byte of input is\n// interpreted as an integer from 0-255, and then results in that many\n// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in\n// 1kb of data being output.  In this case, you could write a very small\n// amount of input, and end up with a very large amount of output.  In\n// such a pathological inflating mechanism, there'd be no way to tell\n// the system to stop doing the transform.  A single 4MB write could\n// cause the system to run out of memory.\n//\n// However, even in such a pathological case, only a single written chunk\n// would be consumed, and then the rest would wait (un-transformed) until\n// the results of the previous transformed chunk were consumed.\n\n'use strict';\n\nmodule.exports = Transform;\n\nvar Duplex = require('./_stream_duplex');\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nutil.inherits(Transform, Duplex);\n\nfunction afterTransform(er, data) {\n  var ts = this._transformState;\n  ts.transforming = false;\n\n  var cb = ts.writecb;\n\n  if (!cb) {\n    return this.emit('error', new Error('write callback called multiple times'));\n  }\n\n  ts.writechunk = null;\n  ts.writecb = null;\n\n  if (data != null) // single equals check for both `null` and `undefined`\n    this.push(data);\n\n  cb(er);\n\n  var rs = this._readableState;\n  rs.reading = false;\n  if (rs.needReadable || rs.length < rs.highWaterMark) {\n    this._read(rs.highWaterMark);\n  }\n}\n\nfunction Transform(options) {\n  if (!(this instanceof Transform)) return new Transform(options);\n\n  Duplex.call(this, options);\n\n  this._transformState = {\n    afterTransform: afterTransform.bind(this),\n    needTransform: false,\n    transforming: false,\n    writecb: null,\n    writechunk: null,\n    writeencoding: null\n  };\n\n  // start out asking for a readable event once data is transformed.\n  this._readableState.needReadable = true;\n\n  // we have implemented the _read method, and done the other things\n  // that Readable wants before the first _read call, so unset the\n  // sync guard flag.\n  this._readableState.sync = false;\n\n  if (options) {\n    if (typeof options.transform === 'function') this._transform = options.transform;\n\n    if (typeof options.flush === 'function') this._flush = options.flush;\n  }\n\n  // When the writable side finishes, then flush out anything remaining.\n  this.on('prefinish', prefinish);\n}\n\nfunction prefinish() {\n  var _this = this;\n\n  if (typeof this._flush === 'function') {\n    this._flush(function (er, data) {\n      done(_this, er, data);\n    });\n  } else {\n    done(this, null, null);\n  }\n}\n\nTransform.prototype.push = function (chunk, encoding) {\n  this._transformState.needTransform = false;\n  return Duplex.prototype.push.call(this, chunk, encoding);\n};\n\n// This is the part where you do stuff!\n// override this function in implementation classes.\n// 'chunk' is an input chunk.\n//\n// Call `push(newChunk)` to pass along transformed output\n// to the readable side.  You may call 'push' zero or more times.\n//\n// Call `cb(err)` when you are done with this chunk.  If you pass\n// an error, then that'll put the hurt on the whole operation.  If you\n// never call cb(), then you'll never get another chunk.\nTransform.prototype._transform = function (chunk, encoding, cb) {\n  throw new Error('_transform() is not implemented');\n};\n\nTransform.prototype._write = function (chunk, encoding, cb) {\n  var ts = this._transformState;\n  ts.writecb = cb;\n  ts.writechunk = chunk;\n  ts.writeencoding = encoding;\n  if (!ts.transforming) {\n    var rs = this._readableState;\n    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);\n  }\n};\n\n// Doesn't matter what the args are here.\n// _transform does all the work.\n// That we got here means that the readable side wants more data.\nTransform.prototype._read = function (n) {\n  var ts = this._transformState;\n\n  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {\n    ts.transforming = true;\n    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);\n  } else {\n    // mark that we need a transform, so that any data that comes in\n    // will get processed, now that we've asked for it.\n    ts.needTransform = true;\n  }\n};\n\nTransform.prototype._destroy = function (err, cb) {\n  var _this2 = this;\n\n  Duplex.prototype._destroy.call(this, err, function (err2) {\n    cb(err2);\n    _this2.emit('close');\n  });\n};\n\nfunction done(stream, er, data) {\n  if (er) return stream.emit('error', er);\n\n  if (data != null) // single equals check for both `null` and `undefined`\n    stream.push(data);\n\n  // if there's nothing in the write buffer, then that means\n  // that nothing more will ever be provided\n  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');\n\n  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');\n\n  return stream.push(null);\n}","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n","'use strict';\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar Buffer = require('safe-buffer').Buffer;\nvar util = require('util');\n\nfunction copyBuffer(src, target, offset) {\n  src.copy(target, offset);\n}\n\nmodule.exports = function () {\n  function BufferList() {\n    _classCallCheck(this, BufferList);\n\n    this.head = null;\n    this.tail = null;\n    this.length = 0;\n  }\n\n  BufferList.prototype.push = function push(v) {\n    var entry = { data: v, next: null };\n    if (this.length > 0) this.tail.next = entry;else this.head = entry;\n    this.tail = entry;\n    ++this.length;\n  };\n\n  BufferList.prototype.unshift = function unshift(v) {\n    var entry = { data: v, next: this.head };\n    if (this.length === 0) this.tail = entry;\n    this.head = entry;\n    ++this.length;\n  };\n\n  BufferList.prototype.shift = function shift() {\n    if (this.length === 0) return;\n    var ret = this.head.data;\n    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;\n    --this.length;\n    return ret;\n  };\n\n  BufferList.prototype.clear = function clear() {\n    this.head = this.tail = null;\n    this.length = 0;\n  };\n\n  BufferList.prototype.join = function join(s) {\n    if (this.length === 0) return '';\n    var p = this.head;\n    var ret = '' + p.data;\n    while (p = p.next) {\n      ret += s + p.data;\n    }return ret;\n  };\n\n  BufferList.prototype.concat = function concat(n) {\n    if (this.length === 0) return Buffer.alloc(0);\n    if (this.length === 1) return this.head.data;\n    var ret = Buffer.allocUnsafe(n >>> 0);\n    var p = this.head;\n    var i = 0;\n    while (p) {\n      copyBuffer(p.data, ret, i);\n      i += p.data.length;\n      p = p.next;\n    }\n    return ret;\n  };\n\n  return BufferList;\n}();\n\nif (util && util.inspect && util.inspect.custom) {\n  module.exports.prototype[util.inspect.custom] = function () {\n    var obj = util.inspect({ length: this.length });\n    return this.constructor.name + ' ' + obj;\n  };\n}","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a passthrough stream.\n// basically just the most minimal sort of Transform stream.\n// Every written chunk gets output as-is.\n\n'use strict';\n\nmodule.exports = PassThrough;\n\nvar Transform = require('./_stream_transform');\n\n/*<replacement>*/\nvar util = require('core-util-is');\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nutil.inherits(PassThrough, Transform);\n\nfunction PassThrough(options) {\n  if (!(this instanceof PassThrough)) return new PassThrough(options);\n\n  Transform.call(this, options);\n}\n\nPassThrough.prototype._transform = function (chunk, encoding, cb) {\n  cb(null, chunk);\n};","module.exports = require('./lib/_stream_writable.js');\n","module.exports = require('./lib/_stream_duplex.js');\n","module.exports = require('./readable').Transform\n","module.exports = require('./readable').PassThrough\n"],"sourceRoot":""}