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How to use WritableStreamDefaultControllerAdvanceQueueIfNeeded method in wpt

Best JavaScript code snippet using wpt

WritableStream.js

Source:WritableStream.js

...710          // const state = stream[_stateAndFlags] & STATE_MASK;711          // assert(state === WRITABLE || state === ERRORING,712          //        '_stream_.[[state]] is `"writable"` or `"erroring"`');713          controller[_started] = true;714          WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);715        },716        r => {717          // const state = stream[_stateAndFlags] & STATE_MASK;718          // assert(state === WRITABLE || state === ERRORING,719          //        '_stream_.[[state]] is `"writable"` or `"erroring"`');720          controller[_started] = true;721          WritableStreamDealWithRejection(stream, r);722        });723  }724  // Writable Stream Default Controller Abstract Operations725  function IsWritableStreamDefaultController(x) {726    return hasOwnPropertyNoThrow(x, _underlyingSink);727  }728  function WritableStreamDefaultControllerClose(controller) {729    EnqueueValueWithSize(controller, 'close', 0);730    WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);731  }732  function WritableStreamDefaultControllerGetChunkSize(controller, chunk) {733    const strategySize = controller[_strategySize];734    if (strategySize === undefined) {735      return 1;736    }737    let value;738    try {739      value = Function_call(strategySize, undefined, chunk);740    } catch (e) {741      WritableStreamDefaultControllerErrorIfNeeded(controller, e);742      return 1;743    }744    return value;745  }746  function WritableStreamDefaultControllerGetDesiredSize(controller) {747    return controller[_strategyHWM] - controller[_queueTotalSize];748  }749  function WritableStreamDefaultControllerWrite(controller, chunk, chunkSize) {750    const writeRecord = {chunk};751    try {752      EnqueueValueWithSize(controller, writeRecord, chunkSize);753    } catch (e) {754      WritableStreamDefaultControllerErrorIfNeeded(controller, e);755      return;756    }757    const stream = controller[_controlledWritableStream];758    if (!WritableStreamCloseQueuedOrInFlight(stream) &&759        (stream[_stateAndFlags] & STATE_MASK) === WRITABLE) {760      const backpressure =761            WritableStreamDefaultControllerGetBackpressure(controller);762      WritableStreamUpdateBackpressure(stream, backpressure);763    }764    WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);765  }766  function WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller) {767    const stream = controller[_controlledWritableStream];768    if (!controller[_started]) {769      return;770    }771    if (stream[_inFlightWriteRequest] !== undefined) {772      return;773    }774    const state = stream[_stateAndFlags] & STATE_MASK;775    if (state === CLOSED || state === ERRORED) {776      return;777    }778    if (state === ERRORING) {779      WritableStreamFinishErroring(stream);780      return;781    }782    if (controller[_queue].length === 0) {783      return;784    }785    const writeRecord = PeekQueueValue(controller);786    if (writeRecord === 'close') {787      WritableStreamDefaultControllerProcessClose(controller);788    } else {789      WritableStreamDefaultControllerProcessWrite(790          controller, writeRecord.chunk);791    }792  }793  function WritableStreamDefaultControllerErrorIfNeeded(controller, error) {794    const state =795          controller[_controlledWritableStream][_stateAndFlags] & STATE_MASK;796    if (state === WRITABLE) {797      WritableStreamDefaultControllerError(controller, error);798    }799  }800  function WritableStreamDefaultControllerProcessClose(controller) {801    const stream = controller[_controlledWritableStream];802    WritableStreamMarkCloseRequestInFlight(stream);803    DequeueValue(controller);804    // assert(controller[_queue].length === 0,805    //        'controller.[[queue]] is empty.');806    const sinkClosePromise =807          PromiseCallOrNoop0(controller[_underlyingSink], 'close',808                             'underlyingSink.close');809    thenPromise(810        sinkClosePromise, () => WritableStreamFinishInFlightClose(stream),811        reason => WritableStreamFinishInFlightCloseWithError(stream, reason));812  }813  function WritableStreamDefaultControllerProcessWrite(controller, chunk) {814    const stream = controller[_controlledWritableStream];815    WritableStreamMarkFirstWriteRequestInFlight(stream);816    const sinkWritePromise = PromiseCallOrNoop2(817        controller[_underlyingSink], 'write', chunk, controller,818        'underlyingSink.write');819    thenPromise(820        sinkWritePromise,821        () => {822          WritableStreamFinishInFlightWrite(stream);823          const state = stream[_stateAndFlags] & STATE_MASK;824          // assert(state === WRITABLE || state === ERRORING,825          //        '_state_ is `"writable"` or `"erroring"`');826          DequeueValue(controller);827          if (!WritableStreamCloseQueuedOrInFlight(stream) &&828              state === WRITABLE) {829            const backpressure =830                  WritableStreamDefaultControllerGetBackpressure(controller);831            WritableStreamUpdateBackpressure(stream, backpressure);832          }833          WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);834        },835        reason => {836          WritableStreamFinishInFlightWriteWithError(stream, reason);837        });838  }839  function WritableStreamDefaultControllerGetBackpressure(controller) {840    const desiredSize =841          WritableStreamDefaultControllerGetDesiredSize(controller);842    return desiredSize <= 0;843  }844  function WritableStreamDefaultControllerError(controller, error) {845    const stream = controller[_controlledWritableStream];846    // assert((stream[_stateAndFlags] & STATE_MASK) === WRITABLE,847    //        '_stream_.[[state]] is `"writable"`.');...

writable_stream_controller.ts

Source:writable_stream_controller.ts

...110  Promise.resolve(startAlgorithm())111    .then(() => {112      Assert(stream.state === "writable" || stream.state === "erroring");113      controller.started = true;114      WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);115    })116    .catch(r => {117      Assert(stream.state === "writable" || stream.state === "erroring");118      controller.started = true;119      WritableStreamDealWithRejection(stream, r);120    });121}122export function SetUpWritableStreamDefaultControllerFromUnderlyingSink(123  stream: WritableStream,124  underlyingSink,125  highWaterMark: number,126  sizeAlgorithm: SizeAlgorithm127) {128  Assert(underlyingSink !== void 0);129  const controller = createWritableStreamDefaultController();130  const startAlgorithm = () =>131    InvokeOrNoop(underlyingSink, "start", controller);132  const writeAlgorithm = CreateAlgorithmFromUnderlyingMethod(133    underlyingSink,134    "write",135    1,136    controller137  );138  const closeAlgorithm = CreateAlgorithmFromUnderlyingMethod(139    underlyingSink,140    "close",141    0142  );143  const abortAlgorithm = CreateAlgorithmFromUnderlyingMethod(144    underlyingSink,145    "abort",146    1147  );148  SetUpWritableStreamDefaultController({149    stream,150    controller,151    startAlgorithm,152    writeAlgorithm,153    closeAlgorithm,154    abortAlgorithm,155    highWaterMark,156    sizeAlgorithm157  });158}159export function WritableStreamDefaultControllerClearAlgorithms<T>(160  controller: WritableStreamDefaultController<T>161) {162  controller.writeAlgorithm = void 0;163  controller.closeAlgorithm = void 0;164  controller.abortAlgorithm = void 0;165  controller.strategySizeAlgorithm = void 0;166}167export function WritableStreamDefaultControllerClose<T>(168  controller: WritableStreamDefaultController<T>169) {170  EnqueueValueWithSize(controller, "close", 0);171  WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);172}173export function WritableStreamDefaultControllerGetChunkSize<T>(174  controller: WritableStreamDefaultController<T>,175  chunk176): number {177  try {178    return controller.strategySizeAlgorithm(chunk);179  } catch (e) {180    WritableStreamDefaultControllerErrorIfNeeded(controller, e);181    return 1;182  }183}184export function WritableStreamDefaultControllerGetDesiredSize<T>(185  controller: WritableStreamDefaultController<T>186): number {187  return controller.strategyHWM - controller.queueTotalSize;188}189export function WritableStreamDefaultControllerWrite<T>(190  controller: WritableStreamDefaultController<T>,191  chunk,192  chunkSize: number193) {194  const writeRecord = { chunk };195  try {196    EnqueueValueWithSize(controller, writeRecord, chunkSize);197  } catch (e) {198    WritableStreamDefaultControllerErrorIfNeeded(controller, e);199    return;200  }201  const stream = controller.controlledWritableStream;202  if (203    !WritableStreamCloseQueuedOrInFlight(stream) &&204    stream.state === "writable"205  ) {206    const backpressure = WritableStreamDefaultControllerGetBackpressure(207      controller208    );209    WritableStreamUpdateBackpressure(stream, backpressure);210  }211  WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);212}213export function WritableStreamDefaultControllerAdvanceQueueIfNeeded<T>(214  controller: WritableStreamDefaultController<T>215) {216  const stream = controller.controlledWritableStream;217  if (!controller.started) {218    return;219  }220  if (stream.inFlightWriteRequest !== void 0) {221    return;222  }223  const { state } = stream;224  if (state === "closed" || state === "errored") {225    return;226  }227  if (state === "erroring") {228    WritableStreamFinishErroring(stream);229    return;230  }231  if (controller.queue.length === 0) {232    return;233  }234  const writeRecord = PeekQueueValue(controller);235  if (writeRecord === "close") {236    WritableStreamDefaultControllerProcessClose(controller);237  } else {238    WritableStreamDefaultControllerProcessWrite(controller, writeRecord.chunk);239  }240}241export function WritableStreamDefaultControllerErrorIfNeeded<T>(242  controller: WritableStreamDefaultController<T>,243  error244) {245  if (controller.controlledWritableStream.state === "writable") {246    WritableStreamDefaultControllerError(controller, error);247  }248}249export function WritableStreamDefaultControllerProcessClose<T>(250  controller: WritableStreamDefaultController<T>251) {252  const stream = controller.controlledWritableStream;253  WritableStreamMarkCloseRequestInFlight(stream);254  DequeueValue(controller);255  Assert(controller.queue.length === 0);256  const sinkClosePromise = controller.closeAlgorithm();257  WritableStreamDefaultControllerClearAlgorithms(controller);258  sinkClosePromise259    .then(() => {260      WritableStreamFinishInFlightClose(stream);261    })262    .catch(r => {263      WritableStreamFinishInFlightCloseWithError(stream, r);264    });265}266export function WritableStreamDefaultControllerProcessWrite<T>(267  controller: WritableStreamDefaultController<T>,268  chunk269) {270  const stream = controller.controlledWritableStream;271  WritableStreamMarkFirstWriteRequestInFlight(stream);272  const sinkWritePromise = controller.writeAlgorithm(chunk);273  sinkWritePromise.then(() => {274    WritableStreamFinishInFlightWrite(stream);275    const { state } = stream;276    Assert(state === "writable" || state === "erroring");277    DequeueValue(controller);278    if (!WritableStreamCloseQueuedOrInFlight(stream) && state === "writable") {279      const bp = WritableStreamDefaultControllerGetBackpressure(controller);280      WritableStreamUpdateBackpressure(stream, bp);281    }282    WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);283  });284}285export function WritableStreamDefaultControllerGetBackpressure<T>(286  controller: WritableStreamDefaultController<T>287) {288  return WritableStreamDefaultControllerGetDesiredSize(controller) <= 0;289}290export function WritableStreamDefaultControllerError<T>(291  controller: WritableStreamDefaultController<T>,292  error293) {294  const stream = controller.controlledWritableStream;295  Assert(stream.state === "writable");296  WritableStreamDefaultControllerClearAlgorithms(controller);...

Using AI Code Generation

1'use strict';2const assert = require('assert');3const { WritableStream, CountQueuingStrategy } = require('stream/web');4const { WritableStreamDefaultControllerAdvanceQueueIfNeeded } = require('stream/web');5const { WritableStreamDefaultControllerGetDesiredSize } = require('stream/web');6const { WritableStreamDefaultControllerClose } = require('stream/web');7const { WritableStreamDefaultControllerGetChunkSize } = require('stream/web');8const { WritableStreamDefaultControllerError } = require('stream/web');9const { WritableStreamDefaultControllerGetBackpressure } = require('stream/web');10const writer = new WritableStream({11  write(chunk) {12    return new Promise(resolve => setTimeout(resolve, 100));13  }14}).getWriter();15const start = Date.now();16for (let i = 0; i < 10; i++) {17  writer.write(i);18}19writer.close();20setTimeout(() => {21  assert(Date.now() - start >= 1000);22}, 2000);23'use strict';24const assert = require('assert');25const { WritableStream, CountQueuingStrategy } = require('stream/web');26const { WritableStreamDefaultWriterGetDesiredSize } = require('stream/web');27const ws = new WritableStream({28  write() {29    return new Promise(resolve => setTimeout(resolve, 100));30  }31}, new CountQueuingStrategy({ highWaterMark: 0 }));32const writer = ws.getWriter();33const start = Date.now();34for (let i = 0; i < 10; i++) {35  writer.write(i);36}37setTimeout(() => {38  assert(Date.now() - start >= 1000);39}, 2000);40'use strict';41const assert = require('assert');42const { WritableStream, CountQueuingStrategy } = require('stream/web');43const { WritableStreamDefaultWriterReleaseLock } = require('stream/web');44const ws = new WritableStream({45  write() {46    return new Promise(resolve => setTimeout(resolve, 100));47  }48}, new CountQueuingStrategy({ highWaterMark: 0 }));49const writer = ws.getWriter();50writer.releaseLock();51assert.throws(() => writer.write(1),

Using AI Code Generation

1test(() => {2  const ws = new WritableStream();3  const writer = ws.getWriter();4  const controller = writer._writableStream._writableStreamController;5  const writeAlgorithm = () => {};6  const closeAlgorithm = () => {};7  const abortAlgorithm = () => {};8  const strategy = {size: () => 1, highWaterMark: 1};9  const highWaterMark = strategy.highWaterMark;10  const sizeAlgorithm = strategy.size;11  const startAlgorithm = () => {};12  const pullAlgorithm = () => {};13  const underlyingSink = {14  };15  const type = underlyingSink.type;16  const source = new WritableStream(underlyingSink, strategy);17  const sink = source._writableStreamController._underlyingSink;18  const startPromise = Promise.resolve();19  const writePromise = Promise.resolve();20  const closePromise = Promise.resolve();21  const abortPromise = Promise.resolve();22  const pullPromise = Promise.resolve();23  const cancelPromise = Promise.resolve();24  const closedPromise = Promise.resolve();25  const readyPromise = Promise.resolve();26  const state = 'writable';27  const storedError = undefined;28  const writeRequests = [];29  const inFlightWriteRequest = undefined;30  const closeRequest = undefined;31  const inFlightCloseRequest = undefined;32  const inFlightWriteOrClose = undefined;33  const pendingAbortRequest = undefined;34  const backpressure = false;35  const started = false;36  const closeRequested = false;37  const queue = [];38  const queueTotalSize = 0;39  const controllerState = {40  };41  const writerState = {42  };43  const sinkState = {44  };45  assert_equals(controller._underlyingSink, sink);46  assert_equals(controller._strategyHWM, highWaterMark);47  assert_equals(controller._strategySize

Using AI Code Generation

1'use strict';2const { WritableStream, WritableStreamDefaultController } = require('stream/web');3const ws = new WritableStream({4  write() {5    return new Promise(resolve => setTimeout(resolve, 1000));6  }7});8const writer = ws.getWriter();9const controller = writer[kState].controller;10const start = Date.now();11writer.write('a');12writer.write('b');13writer.write('c');14writer.write('d');15writer.write('e');16writer.write('f');17writer.write('g');18writer.write('h');19writer.write('i');20writer.write('j');21writer.write('k');22writer.write('l');23writer.write('m');24writer.write('n');25writer.write('o');26writer.write('p');27writer.write('q');28writer.write('r');29writer.write('s');30writer.write('t');31writer.write('u');32writer.write('v');33writer.write('w');34writer.write('x');35writer.write('y');36writer.write('z');37setTimeout(() => {38  console.log(Date.now() - start);

Using AI Code Generation

1const { WritableStream, WritableStreamDefaultController, WritableStreamDefaultWriter } = require('stream/web');2const { ReadableStream, ReadableStreamDefaultReader } = require('stream/web');3const rs = new ReadableStream({4  start(controller) {5    controller.enqueue('a');6    controller.enqueue('b');7    controller.enqueue('c');8    controller.close();9  }10});11const ws = new WritableStream();12const writer = new WritableStreamDefaultWriter(ws);13const reader = new ReadableStreamDefaultReader(rs);14const read = () => reader.read().then(({ value, done }) => {15  if (done)16    return;17  console.log(value);18  return writer.write(value).then(read);19});20read().then(() => writer.close());21assert_equals(typeof WritableStreamDefaultController.prototype.advanceQueueIfNeeded, 'function');22assert_equals(typeof WritableStreamDefaultController.prototype.advanceQueueIfNeeded, 'function');23assert_equals(typeof WritableStreamDefaultController.prototype.advanceQueueIfNeeded, 'function');24assert_equals(typeof WritableStreamDefaultController.prototype.advanceQueueIfNeeded, 'function');25assert_equals(typeof WritableStreamDefaultController.prototype.advanceQueueIfNeeded, 'function');26assert_equals(typeof WritableStreamDefaultController.prototype.advanceQueueIfNeeded, 'function');27assert_equals(typeof WritableStreamDefaultController.prototype.advanceQueueIfNeeded, 'function');

Using AI Code Generation

1import { WritableStream, CountQueuingStrategy, WritableStreamDefaultControllerAdvanceQueueIfNeeded } from 'streams';2let controller;3let stream = new WritableStream({4    start(c) {5        controller = c;6    },7    write(chunk) {8        return new Promise(resolve => {9            setTimeout(() => {10                console.log(chunk);11                resolve();12            }, 1000);13        });14    }15}, new CountQueuingStrategy({ highWaterMark: 2 }));16controller.enqueue('a');17controller.enqueue('b');18controller.enqueue('c');19WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);20import { WritableStream, CountQueuingStrategy, WritableStreamDefaultControllerGetDesiredSize } from 'streams';21let controller;22let stream = new WritableStream({23    start(c) {24        controller = c;25    },26    write(chunk) {27        return new Promise(resolve => {28            setTimeout(() => {29                console.log(chunk);30                resolve();31            }, 1000);32        });33    }34}, new CountQueuingStrategy({ highWaterMark: 2 }));35controller.enqueue('a');36controller.enqueue('b');37controller.enqueue('c');38console.log(WritableStreamDefaultControllerGetDesiredSize(controller));39import { WritableStream, CountQueuingStrategy, WritableStreamDefaultControllerWrite } from 'streams';40let controller;41let stream = new WritableStream({42    start(c

Using AI Code Generation

1var ws = new WritableStream({2  write: function(chunk) {3    return new Promise(function(resolve, reject) {4      resolve();5    });6  }7});8var writer = ws.getWriter();9writer.write('a');10writer.write('b');11writer.close();12var ws = new WritableStream({13  write: function(chunk) {14    return new Promise(function(resolve, reject) {15      resolve();16    });17  }18});19var writer = ws.getWriter();20writer.write('a');21writer.write('b');22writer.close();23var desiredSize = writer.desiredSize;24var ws = new WritableStream({25  write: function(chunk) {26    return new Promise(function(resolve, reject) {27      resolve();28    });29  }30});31var writer = ws.getWriter();32writer.write('a');33writer.write('b');34writer.close();35var ws = new WritableStream({36  write: function(chunk) {37    return new Promise(function(resolve, reject) {38      resolve();39    });40  }41});42var writer = ws.getWriter();43writer.write('a');44writer.write('b');45writer.close();46var ws = new WritableStream({47  write: function(chunk) {48    return new Promise(function(resolve, reject) {49      resolve();50    });51  }52});53var writer = ws.getWriter();54writer.write('a');55writer.write('b');56writer.close();

Using AI Code Generation

1var ws = new WritableStream({2  write: function(chunk) {3    return new Promise(resolve => {4      setTimeout(() => {5        resolve();6      }, 1000);7    });8  }9});10var writer = ws.getWriter();11var start = Date.now();12writer.write('a');13writer.write('b');14writer.write('c');15writer.close();16writer.closed.then(() => {17  console.log(Date.now() - start);18});19 > +    void advanceQueueIfNeeded();20> +  };21> +  WritableStreamDefaultController implements WritableStreamDefaultControllerInterface;22> +  interface WritableStreamDefaultControllerInterface {23> +    readonly attribute WritableStream stream;24> +    readonly attribute WritableStreamDefaultWriterInterface? desiredSize;25> +    void error(optional any e = undefined);26> +    void close();

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