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How to use ReadableStreamGetNumReadIntoRequests method in wpt

Best JavaScript code snippet using wpt

byte-stream-controller.ts

Source:byte-stream-controller.ts

...538  firstDescriptor.buffer = TransferArrayBuffer(firstDescriptor.buffer);539  assert(firstDescriptor.bytesFilled === 0);540  const stream = controller._controlledReadableByteStream;541  if (ReadableStreamHasBYOBReader(stream)) {542    while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {543      const pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(controller);544      ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor);545    }546  }547}548function ReadableByteStreamControllerRespondInReadableState(controller: ReadableByteStreamController,549                                                            bytesWritten: number,550                                                            pullIntoDescriptor: PullIntoDescriptor) {551  if (pullIntoDescriptor.bytesFilled + bytesWritten > pullIntoDescriptor.byteLength) {552    throw new RangeError('bytesWritten out of range');553  }554  ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesWritten, pullIntoDescriptor);555  if (pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize) {556    // TODO: Figure out whether we should detach the buffer or not here.557    return;558  }559  ReadableByteStreamControllerShiftPendingPullInto(controller);560  const remainderSize = pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize;561  if (remainderSize > 0) {562    const end = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;563    const remainder = pullIntoDescriptor.buffer.slice(end - remainderSize, end);564    ReadableByteStreamControllerEnqueueChunkToQueue(controller, remainder, 0, remainder.byteLength);565  }566  pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);567  pullIntoDescriptor.bytesFilled -= remainderSize;568  ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableByteStream, pullIntoDescriptor);569  ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);570}571function ReadableByteStreamControllerRespondInternal(controller: ReadableByteStreamController, bytesWritten: number) {572  const firstDescriptor = controller._pendingPullIntos.peek();573  const stream = controller._controlledReadableByteStream;574  if (stream._state === 'closed') {575    if (bytesWritten !== 0) {576      throw new TypeError('bytesWritten must be 0 when calling respond() on a closed stream');577    }578    ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor);579  } else {580    assert(stream._state === 'readable');581    ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, firstDescriptor);582  }583  ReadableByteStreamControllerCallPullIfNeeded(controller);584}585function ReadableByteStreamControllerShiftPendingPullInto(controller: ReadableByteStreamController): PullIntoDescriptor {586  const descriptor = controller._pendingPullIntos.shift()!;587  ReadableByteStreamControllerInvalidateBYOBRequest(controller);588  return descriptor;589}590function ReadableByteStreamControllerShouldCallPull(controller: ReadableByteStreamController): boolean {591  const stream = controller._controlledReadableByteStream;592  if (stream._state !== 'readable') {593    return false;594  }595  if (controller._closeRequested) {596    return false;597  }598  if (!controller._started) {599    return false;600  }601  if (ReadableStreamHasDefaultReader(stream) && ReadableStreamGetNumReadRequests(stream) > 0) {602    return true;603  }604  if (ReadableStreamHasBYOBReader(stream) && ReadableStreamGetNumReadIntoRequests(stream) > 0) {605    return true;606  }607  const desiredSize = ReadableByteStreamControllerGetDesiredSize(controller);608  assert(desiredSize !== null);609  if (desiredSize! > 0) {610    return true;611  }612  return false;613}614function ReadableByteStreamControllerClearAlgorithms(controller: ReadableByteStreamController) {615  controller._pullAlgorithm = undefined!;616  controller._cancelAlgorithm = undefined!;617}618// A client of ReadableByteStreamController may use these functions directly to bypass state check....

readable_byte_stream_controller.ts

Source:readable_byte_stream_controller.ts

...555  firstDescriptor.buffer = TransferArrayBuffer(firstDescriptor.buffer);556  Assert(firstDescriptor.bytesFilled === 0);557  const stream = controller.controlledReadableByteStream;558  if (ReadableStreamHasBYOBReader(stream)) {559    while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {560      const pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(561        controller562      );563      ReadableByteStreamControllerCommitPullIntoDescriptor(564        stream,565        pullIntoDescriptor566      );567    }568  }569}570export function ReadableByteStreamControllerRespondInReadableState(571  controller: ReadableByteStreamController,572  bytesWritten: number,573  pullIntoDescriptor: PullIntoDescriptor574) {575  if (576    pullIntoDescriptor.bytesFilled + bytesWritten >577    pullIntoDescriptor.byteLength578  ) {579    throw new RangeError();580  }581  ReadableByteStreamControllerFillHeadPullIntoDescriptor(582    controller,583    bytesWritten,584    pullIntoDescriptor585  );586  if (pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize) {587    return;588  }589  ReadableByteStreamControllerShiftPendingPullInto(controller);590  const remainderSize =591    pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize;592  if (remainderSize > 0) {593    const end = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;594    const remainder = CloneArrayBuffer(595      pullIntoDescriptor.buffer,596      end - remainderSize,597      remainderSize598    );599    ReadableByteStreamControllerEnqueueChunkToQueue(600      controller,601      remainder,602      0,603      remainder.byteLength604    );605  }606  pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);607  pullIntoDescriptor.bytesFilled =608    pullIntoDescriptor.bytesFilled - remainderSize;609  ReadableByteStreamControllerCommitPullIntoDescriptor(610    controller.controlledReadableByteStream,611    pullIntoDescriptor612  );613  ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);614}615function CloneArrayBuffer(616  srcBuffer: ArrayBuffer,617  srcByteOffset: number,618  srcLength: number619): ArrayBuffer {620  const ret = new ArrayBuffer(srcLength);621  const retView = new DataView(ret);622  const srcView = new DataView(srcBuffer, srcByteOffset, srcLength);623  for (let i = 0; i < srcLength; i++) {624    retView[i] = srcView[i];625  }626  return ret;627}628export function ReadableByteStreamControllerRespondInternal(629  controller: ReadableByteStreamController,630  bytesWritten: number631) {632  const firstDescriptor = controller.pendingPullIntos[0];633  const stream = controller.controlledReadableByteStream;634  if (stream.state === "closed") {635    if (bytesWritten !== 0) {636      throw new TypeError();637    }638    ReadableByteStreamControllerRespondInClosedState(639      controller,640      firstDescriptor641    );642  } else {643    Assert(stream.state === "readable");644    ReadableByteStreamControllerRespondInReadableState(645      controller,646      bytesWritten,647      firstDescriptor648    );649  }650  ReadableByteStreamControllerCallPullIfNeeded(controller);651}652export function ReadableByteStreamControllerRespondWithNewView(653  controller: ReadableByteStreamController,654  view655) {656  Assert(controller.pendingPullIntos.length > 0);657  const firstDescriptor = controller.pendingPullIntos[0];658  if (659    firstDescriptor.byteOffset + firstDescriptor.bytesFilled !==660    view.ByteOffset661  ) {662    throw new RangeError();663  }664  if (firstDescriptor.byteLength !== view.ByteLength) {665    throw new RangeError();666  }667  firstDescriptor.buffer = view.ViewedArrayBuffer;668  ReadableByteStreamControllerRespondInternal(controller, view.ByteLength);669}670export function ReadableByteStreamControllerShiftPendingPullInto(671  controller: ReadableByteStreamController672): PullIntoDescriptor {673  const descriptor = controller.pendingPullIntos.shift();674  ReadableByteStreamControllerInvalidateBYOBRequest(controller);675  return descriptor;676}677export function ReadableByteStreamControllerShouldCallPull(678  controller: ReadableByteStreamController679) {680  const stream = controller.controlledReadableByteStream;681  if (stream.state !== "readable") {682    return false;683  }684  if (controller.closeRequested === true) {685    return false;686  }687  if (controller.started === false) {688    return false;689  }690  if (691    ReadableStreamHasDefaultReader(stream) &&692    ReadableStreamGetNumReadRequests(stream) > 0693  ) {694    return true;695  }696  if (697    ReadableStreamHasBYOBReader(stream) &&698    ReadableStreamGetNumReadIntoRequests(stream) > 0699  ) {700    return true;701  }702  const desiredSize = ReadableByteStreamControllerGetDesiredSize(controller);703  Assert(desiredSize !== null);704  if (desiredSize > 0) {705    return true;706  }707  return false;708}709export function SetUpReadableByteStreamController(710  stream: ReadableStream,711  controller: ReadableByteStreamController,712  startAlgorithm: StartAlgorithm,...

byob-reader.ts

Source:byob-reader.ts

...47  } else {48    readIntoRequest._chunkSteps(chunk);49  }50}51export function ReadableStreamGetNumReadIntoRequests(stream: ReadableByteStream): number {52  return (stream._reader as ReadableStreamBYOBReader)._readIntoRequests.length;53}54export function ReadableStreamHasBYOBReader(stream: ReadableByteStream): boolean {55  const reader = stream._reader;56  if (reader === undefined) {57    return false;58  }59  if (!IsReadableStreamBYOBReader(reader)) {60    return false;61  }62  return true;63}64// Readers65export interface ReadIntoRequest<T extends ArrayBufferView> {...

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    controller.enqueue("a");4    controller.enqueue("b");5    controller.enqueue("c");6  }7});8var reader = rs.getReader();9var read1 = reader.read();10var read2 = reader.read();11var read3 = reader.read();12var readInto1 = reader.readInto(new Uint8Array(1));13var readInto2 = reader.readInto(new Uint8Array(1));14read1.then(result1 => {15  assert_equals(result1.value, "a");16  assert_false(result1.done);17  read2.then(result2 => {18    assert_equals(result2.value, "b");19    assert_false(result2.done);20    read3.then(result3 => {21      assert_equals(result3.value, "c");22      assert_false(result3.done);23      readInto1.then(result4 => {24        assert_equals(result4.value[0], 97);25        assert_false(result4.done);26        readInto2.then(result5 => {27          assert_equals(result5.value[0], 98);28          assert_false(result5.done);29        });30      });31    });32  });33});34readInto1.then(result4 => {35  assert_equals(result4.value[0], 97);36  assert_false(result4.done);37  readInto2.then(result5 => {38    assert_equals(result5.value[0], 98);39    assert_false(result5.done);40  });41});42var rs = new ReadableStream({43  start(controller) {44    controller.enqueue("a");45    controller.enqueue("b");46    controller.enqueue("c");47  }48});49var reader = rs.getReader();50var read1 = reader.read();51var read2 = reader.read();52var read3 = reader.read();53var readInto1 = reader.readInto(new Uint8Array(1));54var readInto2 = reader.readInto(new Uint8Array(1));55read1.then(result1 => {56  assert_equals(result1.value, "a");57  assert_false(result1.done);58  read2.then(result2 => {59    assert_equals(result2.value, "b");60    assert_false(result2.done);61    read3.then(result3 => {62      assert_equals(result3.value, "c");63      assert_false(result3.done);64      readInto1.then(result4 => {65        assert_equals(result4.value[0], 97

Using AI Code Generation

1var rs = new ReadableStream();2var reader = rs.getReader();3assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 1, 'ReadableStreamGetNumReadIntoRequests should return 1');4reader.releaseLock();5assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 0, 'ReadableStreamGetNumReadIntoRequests should return 0');6function ReadableStream() {7  this._reader = undefined;8}9ReadableStream.prototype.getReader = function() {10  var reader = new ReadableStreamDefaultReader(this);11  this._reader = reader;12}13function ReadableStreamDefaultReader(stream) {14  this._readIntoRequests = [];15}16ReadableStreamDefaultReader.prototype.read = function() {17  if (this._ownerReadableStream._state === 'closed') {18    return Promise.resolve(CreateIterResultObject(undefined, true));19  }20  this._ownerReadableStream._reader._readIntoRequests.push(readIntoRequest);21}22function ReadableStreamDefaultReaderReadResult(value, done) {23  this._readIntoRequests = [];24}25function ReadableStreamGetNumReadIntoRequests(stream) {26  var reader = stream._reader;27  return reader._readIntoRequests.length;28}

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    controller.enqueue('a');4    controller.enqueue('b');5    controller.enqueue('c');6    controller.close();7  }8});9const reader = rs.getReader();10reader.read().then(result => {11  assert_true(result.done, 'result.done');12  assert_equals(result.value, 'a', 'result.value');13  return reader.read();14}).then(result => {15  assert_true(result.done, 'result.done');16  assert_equals(result.value, 'b', 'result.value');17  return reader.read();18}).then(result => {19  assert_true(result.done, 'result.done');20  assert_equals(result.value, 'c', 'result.value');21  return reader.read();22}).then(result => {23  assert_true(result.done, 'result.done');24  assert_equals(result.value, undefined, 'result.value');25  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 0, 'ReadableStreamGetNumReadIntoRequests');26}, t.unreached_func('Unexpected fulfillment of promise'));

Using AI Code Generation

1const rs = new ReadableStream({2  pull(controller) {3    const view = new Uint8Array(1);4    controller.byobRequest.respondWithNewView(view);5  }6});7const reader = rs.getReader({ mode: 'byob' });8reader.read(new Uint8Array(1)).then(() => {9  assert_equals(rs._readableStreamController._byobRequest, null,10    'byobRequest should be null');11  assert_equals(rs._readableStreamController._pendingPullIntos.length, 0,12    'pendingPullIntos should be empty');13  assert_equals(rs._readableStreamController._queueTotalSize, 0,14    'queueTotalSize should be 0');15  assert_equals(rs._readableStreamController._queue.length, 0,16    'queue should be empty');17  assert_equals(rs._readableStreamController._totalQueuedBytes, 0,18    'totalQueuedBytes should be 0');19  assert_equals(rs._readableStreamController._closeRequested, false,20    'closeRequested should be false');21  assert_equals(rs._readableStreamController._started, true,22    'started should be true');23  assert_equals(rs._readableStreamController._pullAgain, false,24    'pullAgain should be false');25  assert_equals(rs._readableStreamController._pulling, false,26    'pulling should be false');27  assert_equals(rs._readableStreamController._strategyHWM, 0,28    'strategyHWM should be 0');29  assert_equals(rs._readableStreamController._strategySizeAlgorithm, undefined,30    'strategySizeAlgorithm should be undefined');31  assert_equals(rs._readableStreamController._pullAlgorithm, undefined,32    'pullAlgorithm should be undefined');33  assert_equals(rs._readableStreamController._cancelAlgorithm, undefined,34    'cancelAlgorithm should be undefined');35  assert_equals(rs._readableStreamController._autoAllocateChunkSize, 1,36    'autoAllocateChunkSize should be 1');37  assert_equals(rs._readableStreamController._pendingPullIntos.length, 0,38    'pendingPullIntos should be empty');39  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 0,40    'ReadableStreamGetNumReadIntoRequests should be 0');41  assert_equals(ReadableStreamGetNumReadRequests(rs), 0,

Using AI Code Generation

1import { ReadableStream, CountQueuingStrategy } from2'../streams/readable-stream.js';3import { ReadableStreamBYOBReader } from '../streams/readable-stream-byob-reader.js';4import { ReadableStreamBYOBRequest } from '../streams/readable-stream-byob-request.js';5import { ReadableStreamDefaultController } from6'../streams/readable-stream-default-controller.js';7import { ReadableStreamDefaultReader } from8'../streams/readable-stream-default-reader.js';9import { ReadableStreamTee } from '../streams/readable-stream-tee.js';10import { ReadableByteStreamController } from11'../streams/readable-byte-stream-controller.js';12import { ReadableStreamBYOBRequest } from13'../streams/readable-stream-byob-request.js';14const rs = new ReadableStream({15  start(c) {16    console.log(ReadableStreamGetNumReadIntoRequests(rs));17    const reader = rs.getReader({ mode: 'byob' });18    console.log(ReadableStreamGetNumReadIntoRequests(rs));19  }20});21export class ReadableStream {22  constructor(underlyingSource = {}, strategy = {}) {23    if (underlyingSource === undefined)24      underlyingSource = null;25    else if (underlyingSource === null)26      throw new TypeError();27    const size = strategy.size;28    const highWaterMark = strategy.highWaterMark;29    const type = underlyingSource.type;30    const typeString = String(type);31    if (typeString === 'bytes') {32      if (size !== undefined)33        throw new RangeError();34      const highWaterMark = ExtractHighWaterMark(highWaterMark, 0);35      SetUpReadableByteStreamControllerFromUnderlyingSource(36        this, underlyingSource, highWaterMark);37    } else if (type === undefined) {38      const sizeAlgorithm = MakeSizeAlgorithmFromSizeFunction(size);39      const highWaterMark = ExtractHighWaterMark(highWaterMark, 1);40      SetUpReadableStreamDefaultControllerFromUnderlyingSource(41        this, underlyingSource, highWaterMark, sizeAlgorithm);42    } else {43      throw new RangeError();44    }45  }46}47export class ReadableStreamDefaultController {48  constructor() {49    throw new TypeError();50  }51}

Using AI Code Generation

1  var rs = new ReadableStream({2    start(controller) {3      controller.enqueue(new Uint8Array([0x01]));4    }5  });6  var reader = rs.getReader();7  var read = reader.read();8  assert_equals(read.value, undefined);9  assert_equals(read.done, false);10  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 0);11  assert_equals(ReadableStreamGetNumReadRequests(rs), 1);12  read = reader.read(new Uint8Array(1));13  assert_equals(read.value, undefined);14  assert_equals(read.done, false);15  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 1);16  assert_equals(ReadableStreamGetNumReadRequests(rs), 0);17  read = reader.read();18  assert_equals(read.value, undefined);19  assert_equals(read.done, false);20  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 1);21  assert_equals(ReadableStreamGetNumReadRequests(rs), 0);22  read = reader.read(new Uint8Array(1));23  assert_equals(read.value, undefined);24  assert_equals(read.done, false);25  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 2);26  assert_equals(ReadableStreamGetNumReadRequests(rs), 0);27  reader.releaseLock();28  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 0);29  assert_equals(ReadableStreamGetNumReadRequests(rs), 0);30}, 'ReadableStreamGetNumReadIntoRequests returns the number of readInto requests');31  var rs = new ReadableStream({32    start(controller) {33      controller.enqueue(new Uint8Array([0x01]));34    }35  });36  var reader = rs.getReader();37  var read = reader.read();38  assert_equals(read.value, undefined);39  assert_equals(read.done, false);40  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 0);41  assert_equals(ReadableStreamGetNumReadRequests(rs), 1);42  read = reader.read(new Uint8Array(1));43  assert_equals(read.value, undefined);44  assert_equals(read.done, false);45  assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 1);46  assert_equals(ReadableStreamGetNumReadRequests(rs), 0);47  read = reader.read();

Using AI Code Generation

1test(() => {2  const rs = new ReadableStream({3    start(controller) {4      controller.enqueue(new Uint8Array([1, 2, 3]));5    }6  });7  const reader = rs.getReader({ mode: 'byob' });8  return Promise.all([9    reader.read(new Uint8Array(1)),10    reader.read(new Uint8Array(1)),11    reader.read(new Uint8Array(1))12  ]).then(() => {13    assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 0, 'the stream must have no pending BYOB read() calls');14  });15}, 'ReadableStreamGetNumReadIntoRequests should return 0 when there are no pending BYOB read() calls');16test(() => {17  const rs = new ReadableStream({18    start(controller) {19      controller.enqueue(new Uint8Array([1, 2, 3]));20    }21  });22  const reader = rs.getReader({ mode: 'byob' });23  return Promise.all([24    reader.read(new Uint8Array(1)),25    reader.read(new Uint8Array(1)),26    reader.read(new Uint8Array(1))27  ]).then(() => {28    assert_equals(ReadableStreamGetNumReadIntoRequests(rs), 0, 'the stream must have no pending BYOB read() calls');29  });30}, 'ReadableStreamGetNumReadIntoRequests should return 0 when there are no pending BYOB read() calls');31    at test (wptb-testharness.js:102)32    at ReadableStreamBYOBReader.ReadableStreamDefaultReader.read (wptb-testharness.js:282)33    at ReadableStreamBYOBReader.ReadableStreamDefaultReader.read (wptb-testharness.js:282)34    at ReadableStreamBYOBReader.ReadableStreamDefaultReader.read (wptb-testharness.js:282)35    at Object.<anonymous> (test.js:15)36    at Module._compile (internal/modules/cjs/loader.js:778:30)

Using AI Code Generation

1function ReadableStreamGetNumReadIntoRequests(stream) {2  assert_equals(stream._state, 'readable', 'stream must be in readable state.');3  return stream._reader._readIntoRequests.length;4}5function ReadableStreamGetNumReadRequests(stream) {6  assert_equals(stream._state, 'readable', 'stream must be in readable state.');7  return stream._reader._readRequests.length;8}9function ReadableStreamHasBYOBReader(stream) {10  assert_equals(stream._state, 'readable', 'stream must be in readable state.');11  return stream._reader instanceof ReadableStreamBYOBReader;12}13function ReadableStreamHasDefaultReader(stream) {14  assert_equals(stream._state, 'readable', 'stream must be in readable state.');15  return stream._reader instanceof ReadableStreamDefaultReader;16}17function ReadableStreamHasReader(stream) {18  assert_equals(stream._state, 'readable', '

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