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How to use ReadableByteStreamControllerRespondInternal method in wpt

Best JavaScript code snippet using wpt

ReadableByteStreamInternals.js

Source:ReadableByteStreamInternals.js

1/*2 * Copyright (C) 2016 Canon Inc. All rights reserved.3 *4 * Redistribution and use in source and binary forms, with or without5 * modification, are permitted provided that the following conditions6 * are met:7 * 1. Redistributions of source code must retain the above copyright8 *    notice, this list of conditions and the following disclaimer.9 * 2. Redistributions in binary form must reproduce the above copyright10 *    notice, this list of conditions and the following disclaimer in the11 *    documentation and/or other materials provided with the distribution.12 *13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.24 */25// @conditional=ENABLE(STREAMS_API)26// @internal27function privateInitializeReadableByteStreamController(stream, underlyingByteSource, highWaterMark)28{29    "use strict";30    if (!@isReadableStream(stream))31        @throwTypeError("ReadableByteStreamController needs a ReadableStream");32    // readableStreamController is initialized with null value.33    if (stream.@readableStreamController !== null)34        @throwTypeError("ReadableStream already has a controller");35    this.@controlledReadableStream = stream;36    this.@underlyingByteSource = underlyingByteSource;37    this.@pullAgain = false;38    this.@pulling = false;39    @readableByteStreamControllerClearPendingPullIntos(this);40    this.@queue = [];41    this.@totalQueuedBytes = 0;42    this.@started = false;43    this.@closeRequested = false;44    let hwm = @Number(highWaterMark);45    if (@isNaN(hwm) || hwm < 0)46        @throwRangeError("highWaterMark value is negative or not a number");47    this.@strategyHWM = hwm;48    let autoAllocateChunkSize = underlyingByteSource.autoAllocateChunkSize;49    if (autoAllocateChunkSize !== @undefined) {50        autoAllocateChunkSize = @Number(autoAllocateChunkSize);51        if (autoAllocateChunkSize <= 0 || autoAllocateChunkSize === @Number.POSITIVE_INFINITY || autoAllocateChunkSize === @Number.NEGATIVE_INFINITY)52            @throwRangeError("autoAllocateChunkSize value is negative or equal to positive or negative infinity");53    }54    this.@autoAllocateChunkSize = autoAllocateChunkSize;55    this.@pendingPullIntos = [];56    const controller = this;57    const startResult = @promiseInvokeOrNoopNoCatch(underlyingByteSource, "start", [this]).@then(() => {58        controller.@started = true;59        @assert(!controller.@pulling);60        @assert(!controller.@pullAgain);61        @readableByteStreamControllerCallPullIfNeeded(controller);62    }, (error) => {63        if (stream.@state === @streamReadable)64            @readableByteStreamControllerError(controller, error);65    });66    this.@cancel = @readableByteStreamControllerCancel;67    this.@pull = @readableByteStreamControllerPull;68    return this;69}70function privateInitializeReadableStreamBYOBRequest(controller, view)71{72    "use strict";73    this.@associatedReadableByteStreamController = controller;74    this.@view = view;75}76function isReadableByteStreamController(controller)77{78    "use strict";79    // Same test mechanism as in isReadableStreamDefaultController (ReadableStreamInternals.js).80    // See corresponding function for explanations.81    return @isObject(controller) && !!controller.@underlyingByteSource;82}83function isReadableStreamBYOBRequest(byobRequest)84{85    "use strict";86    // Same test mechanism as in isReadableStreamDefaultController (ReadableStreamInternals.js).87    // See corresponding function for explanations.88    return @isObject(byobRequest) && !!byobRequest.@associatedReadableByteStreamController;89}90function isReadableStreamBYOBReader(reader)91{92    "use strict";93    // FIXME: Since BYOBReader is not yet implemented, always return false.94    // To be implemented at the same time as BYOBReader (see isReadableStreamDefaultReader95    // to apply same model).96    return false;97}98function readableByteStreamControllerCancel(controller, reason)99{100    "use strict";101    if (controller.@pendingPullIntos.length > 0)102        controller.@pendingPullIntos[0].bytesFilled = 0;103    controller.@queue = [];104    controller.@totalQueuedBytes = 0;105    return @promiseInvokeOrNoop(controller.@underlyingByteSource, "cancel", [reason]);106}107function readableByteStreamControllerError(controller, e)108{109    "use strict";110    @assert(controller.@controlledReadableStream.@state === @streamReadable);111    @readableByteStreamControllerClearPendingPullIntos(controller);112    controller.@queue = [];113    @readableStreamError(controller.@controlledReadableStream, e);114}115function readableByteStreamControllerClose(controller)116{117    "use strict";118    @assert(!controller.@closeRequested);119    @assert(controller.@controlledReadableStream.@state === @streamReadable);120    if (controller.@totalQueuedBytes > 0) {121        controller.@closeRequested = true;122        return;123    }124    if (controller.@pendingPullIntos.length > 0) {125        if (controller.@pendingPullIntos[0].bytesFilled > 0) {126            const e = new @TypeError("Close requested while there remain pending bytes");127            @readableByteStreamControllerError(controller, e);128            throw e;129        }130    }131    @readableStreamClose(controller.@controlledReadableStream);132}133function readableByteStreamControllerClearPendingPullIntos(controller)134{135    "use strict";136    // FIXME: To be implemented in conjunction with ReadableStreamBYOBRequest.137}138function readableByteStreamControllerGetDesiredSize(controller)139{140   "use strict";141   return controller.@strategyHWM - controller.@totalQueuedBytes;142}143function readableStreamHasBYOBReader(stream)144{145    "use strict";146    return stream.@reader !== @undefined && @isReadableStreamBYOBReader(stream.@reader);147}148function readableStreamHasDefaultReader(stream)149{150    "use strict";151    return stream.@reader !== @undefined && @isReadableStreamDefaultReader(stream.@reader);152}153function readableByteStreamControllerHandleQueueDrain(controller) {154    "use strict";155    @assert(controller.@controlledReadableStream.@state === @streamReadable);156    if (!controller.@totalQueuedBytes && controller.@closeRequested)157        @readableStreamClose(controller.@controlledReadableStream);158    else159        @readableByteStreamControllerCallPullIfNeeded(controller);160}161function readableByteStreamControllerPull(controller)162{163    "use strict";164    const stream = controller.@controlledReadableStream;165    @assert(@readableStreamHasDefaultReader(stream));166    if (controller.@totalQueuedBytes > 0) {167        @assert(stream.@reader.@readRequests.length === 0);168        const entry = controller.@queue.@shift();169        controller.@totalQueuedBytes -= entry.byteLength;170        @readableByteStreamControllerHandleQueueDrain(controller);171        let view;172        try {173            view = new @Uint8Array(entry.buffer, entry.byteOffset, entry.byteLength);174        } catch (error) {175            return @Promise.@reject(error);176        }177        return @Promise.@resolve({value: view, done: false});178    }179    if (controller.@autoAllocateChunkSize !== @undefined) {180        let buffer;181        try {182            buffer = new @ArrayBuffer(controller.@autoAllocateChunkSize);183        } catch (error) {184            return @Promise.@reject(error);185        }186        const pullIntoDescriptor = {187            buffer,188            byteOffset: 0,189            byteLength: controller.@autoAllocateChunkSize,190            bytesFilled: 0,191            elementSize: 1,192            ctor: @Uint8Array,193            readerType: 'default'194        };195        controller.@pendingPullIntos.@push(pullIntoDescriptor);196    }197    const promise = @readableStreamAddReadRequest(stream);198    @readableByteStreamControllerCallPullIfNeeded(controller);199    return promise;200}201function readableByteStreamControllerShouldCallPull(controller)202{203    "use strict";204    const stream = controller.@controlledReadableStream;205    if (stream.@state !== @streamReadable)206        return false;207    if (controller.@closeRequested)208        return false;209    if (!controller.@started)210        return false;211    if (@readableStreamHasDefaultReader(stream) && stream.@reader.@readRequests.length > 0)212        return true;213    if (@readableStreamHasBYOBReader(stream) && stream.@reader.@readIntoRequests.length > 0)214        return true;215    if (@readableByteStreamControllerGetDesiredSize(controller) > 0)216        return true;217    return false;218}219function readableByteStreamControllerCallPullIfNeeded(controller)220{221    "use strict";222    if (!@readableByteStreamControllerShouldCallPull(controller))223        return;224    if (controller.@pulling) {225        controller.@pullAgain = true;226        return;227    }228    @assert(!controller.@pullAgain);229    controller.@pulling = true;230    @promiseInvokeOrNoop(controller.@underlyingByteSource, "pull", [controller]).@then(() => {231        controller.@pulling = false;232        if (controller.@pullAgain) {233            controller.@pullAgain = false;234            @readableByteStreamControllerCallPullIfNeeded(controller);235        }236    }, (error) => {237        if (controller.@controlledReadableStream.@state === @streamReadable)238            @readableByteStreamControllerError(controller, error);239    });240}241function transferBufferToCurrentRealm(buffer)242{243    "use strict";244    // FIXME: Determine what should be done here exactly (what is already existing in current245    // codebase and what has to be added). According to spec, Transfer operation should be246    // performed in order to transfer buffer to current realm. For the moment, simply return247    // received buffer.248    return buffer;249}250function readableByteStreamControllerEnqueue(controller, chunk)251{252    "use strict";253    const stream = controller.@controlledReadableStream;254    @assert(!controller.@closeRequested);255    @assert(stream.@state === @streamReadable);256    const buffer = chunk.buffer;257    const byteOffset = chunk.byteOffset;258    const byteLength = chunk.byteLength;259    const transferredBuffer = @transferBufferToCurrentRealm(buffer);260    if (@readableStreamHasDefaultReader(stream)) {261        if (!stream.@reader.@readRequests.length)262            @readableByteStreamControllerEnqueueChunk(controller, transferredBuffer, byteOffset, byteLength);263        else {264            @assert(!controller.@queue.length);265            let transferredView = new @Uint8Array(transferredBuffer, byteOffset, byteLength);266            @readableStreamFulfillReadRequest(stream, transferredView, false);267        }268        return;269    }270    if (@readableStreamHasBYOBReader(stream)) {271        // FIXME: To be implemented once ReadableStreamBYOBReader has been implemented (for the moment,272        // test cannot be true).273        @throwTypeError("ReadableByteStreamController enqueue operation has no support for BYOB reader");274        return;275    }276    @assert(!@isReadableStreamLocked(stream));277    @readableByteStreamControllerEnqueueChunk(controller, transferredBuffer, byteOffset, byteLength);278}279// Spec name: readableByteStreamControllerEnqueueChunkToQueue.280function readableByteStreamControllerEnqueueChunk(controller, buffer, byteOffset, byteLength)281{282    "use strict";283    controller.@queue.@push({284        buffer: buffer,285        byteOffset: byteOffset,286        byteLength: byteLength287    });288    controller.@totalQueuedBytes += byteLength;289}290function readableByteStreamControllerRespondWithNewView(controller, view)291{292    "use strict";293    @assert(controller.@pendingPullIntos.length > 0);294    let firstDescriptor = controller.@pendingPullIntos[0];295    if (firstDescriptor.byteOffset + firstDescriptor.bytesFilled !== view.byteOffset)296        @throwRangeError("Invalid value for view.byteOffset");297    if (firstDescriptor.byteLength !== view.byteLength)298        @throwRangeError("Invalid value for view.byteLength");299    firstDescriptor.buffer = view.buffer;300    @readableByteStreamControllerRespondInternal(controller, view.byteLength);301}302function readableByteStreamControllerRespond(controller, bytesWritten)303{304    "use strict";305    bytesWritten = @Number(bytesWritten);306    if (@isNaN(bytesWritten) || bytesWritten === @Number.POSITIVE_INFINITY || bytesWritten < 0 )307        @throwRangeError("bytesWritten has an incorrect value");308    @assert(controller.@pendingPullIntos.length > 0);309    @readableByteStreamControllerRespondInternal(controller, bytesWritten);310}311function readableByteStreamControllerRespondInternal(controller, bytesWritten)312{313    "use strict";314    let firstDescriptor = controller.@pendingPullIntos[0];315    let stream = controller.@controlledReadableStream;316    if (stream.@state === @streamClosed) {317        if (bytesWritten !== 0)318            @throwTypeError("bytesWritten is different from 0 even though stream is closed");319        @readableByteStreamControllerRespondInClosedState(controller, firstDescriptor);320    } else {321        @assert(stream.@state === @streamReadable);322        @readableByteStreamControllerRespondInReadableState(controller, bytesWritten, firstDescriptor);323    }324}325function readableByteStreamControllerRespondInReadableState(controller, bytesWritten, pullIntoDescriptor)326{327    "use strict";328    if (pullIntoDescriptor.bytesFilled + bytesWritten > pullIntoDescriptor.byteLength)329        @throwRangeError("bytesWritten value is too great");330    @assert(controller.@pendingPullIntos.length === 0 || controller.@pendingPullIntos[0] === pullIntoDescriptor);331    @readableByteStreamControllerInvalidateBYOBRequest(controller);332    pullIntoDescriptor.bytesFilled += bytesWritten;333    if (pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize)334        return;335    @readableByteStreamControllerShiftPendingDescriptor(controller);336    const remainderSize = pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize;337    if (remainderSize > 0) {338        const end = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;339        const remainder = @cloneArrayBuffer(pullIntoDescriptor.buffer, end - remainderSize, remainderSize);340        @readableByteStreamControllerEnqueueChunk(controller, remainder, 0, remainder.byteLength);341    }342    pullIntoDescriptor.buffer = @transferBufferToCurrentRealm(pullIntoDescriptor.buffer);343    pullIntoDescriptor.bytesFilled -= remainderSize;344    @readableByteStreamControllerCommitDescriptor(controller.@controlledReadableStream, pullIntoDescriptor);345    @readableByteStreamControllerProcessPullDescriptors(controller);346}347function readableByteStreamControllerRespondInClosedState(controller, firstDescriptor)348{349    "use strict";350    firstDescriptor.buffer = @transferBufferToCurrentRealm(firstDescriptor.buffer);351    @assert(firstDescriptor.bytesFilled === 0);352    // FIXME: Spec does not describe below test. However, only ReadableStreamBYOBReader has a readIntoRequests353    // property. This issue has been reported through WHATWG/streams GitHub354    // (https://github.com/whatwg/streams/issues/686), but no solution has been provided for the moment.355    // Therefore, below test is added as a temporary fix.356    if (!@isReadableStreamBYOBReader(controller.@reader))357        return;358    while (controller.@reader.@readIntoRequests.length > 0) {359        let pullIntoDescriptor = @readableByteStreamControllerShiftPendingDescriptor(controller);360        @readableByteStreamControllerCommitDescriptor(controller.@controlledReadableStream, pullIntoDescriptor);361    }362}363// Spec name: readableByteStreamControllerProcessPullIntoDescriptorsUsingQueue (shortened for readability).364function readableByteStreamControllerProcessPullDescriptors(controller)365{366    "use strict";367    @assert(!controller.@closeRequested);368    while (controller.@pendingPullIntos.length > 0) {369        if (controller.@totalQueuedBytes === 0)370            return;371        let pullIntoDescriptor = controller.@pendingPullIntos[0];372        if (@readableByteStreamControllerFillDescriptorFromQueue(controller, pullIntoDescriptor)) {373            @readableByteStreamControllerShiftPendingDescriptor(controller);374            @readableByteStreamControllerCommitDescriptor(controller.@controlledReadableStream, pullIntoDescriptor);375        }376    }377}378// Spec name: readableByteStreamControllerFillPullIntoDescriptorFromQueue (shortened for readability).379function readableByteStreamControllerFillDescriptorFromQueue(controller, pullIntoDescriptor)380{381    "use strict";382    const currentAlignedBytes = pullIntoDescriptor.bytesFilled - (pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize);383    const maxBytesToCopy = controller.@totalQueuedBytes < pullIntoDescriptor.byteLength - pullIntoDescriptor.bytesFilled ?384                controller.@totalQueuedBytes : pullIntoDescriptor.byteLength - pullIntoDescriptor.bytesFilled;385    const maxBytesFilled = pullIntoDescriptor.bytesFilled + maxBytesToCopy;386    const maxAlignedBytes = maxBytesFilled - (maxBytesFilled % pullIntoDescriptor.elementSize);387    let totalBytesToCopyRemaining = maxBytesToCopy;388    let ready = false;389    if (maxAlignedBytes > currentAlignedBytes) {390        totalBytesToCopyRemaining = maxAlignedBytes - pullIntoDescriptor.bytesFilled;391        ready = true;392    }393    while (totalBytesToCopyRemaining > 0) {394        let headOfQueue = controller.@queue[0];395        const bytesToCopy = totalBytesToCopyRemaining < headOfQueue.byteLength ? totalBytesToCopyRemaining : headOfQueue.byteLength;396        // Copy appropriate part of pullIntoDescriptor.buffer to headOfQueue.buffer.397        // Remark: this implementation is not completely aligned on the definition of CopyDataBlockBytes398        // operation of ECMAScript (the case of Shared Data Block is not considered here, but it doesn't seem to be an issue).399        let fromIndex = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;400        let count = bytesToCopy;401        let toIndex = headOfQueue.byteOffset;402        while (count > 0) {403            headOfQueue.buffer[toIndex] = pullIntoDescriptor.buffer[fromIndex];404            toIndex++;405            fromIndex++;406            count--;407        }408        if (headOfQueue.byteLength === bytesToCopy)409            controller.@queue.@shift();410        else {411            headOfQueue.byteOffset += bytesToCopy;412            headOfQueue.byteLength -= bytesToCopy;413        }414        controller.@totalQueuedBytes -= bytesToCopy;415        @assert(controller.@pendingPullIntos.length === 0 || controller.@pendingPullIntos[0] === pullIntoDescriptor);416        @readableByteStreamControllerInvalidateBYOBRequest(controller);417        pullIntoDescriptor.bytesFilled += bytesToCopy;418        totalBytesToCopyRemaining -= bytesToCopy;419    }420    if (!ready) {421        @assert(controller.@totalQueuedBytes === 0);422        @assert(pullIntoDescriptor.bytesFilled > 0);423        @assert(pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize);424    }425    return ready;426}427// Spec name: readableByteStreamControllerShiftPendingPullInto (renamed for consistency).428function readableByteStreamControllerShiftPendingDescriptor(controller)429{430    "use strict";431    let descriptor = controller.@pendingPullIntos.@shift();432    @readableByteStreamControllerInvalidateBYOBRequest(controller);433    return descriptor;434}435function readableByteStreamControllerInvalidateBYOBRequest(controller)436{437    "use strict";438    if (controller.@byobRequest === @undefined)439        return;440    controller.@byobRequest.@associatedReadableByteStreamController = @undefined;441    controller.@byobRequest.@view = @undefined;442    controller.@byobRequest = @undefined;443}444// Spec name: readableByteStreamControllerCommitPullIntoDescriptor (shortened for readability).445function readableByteStreamControllerCommitDescriptor(stream, pullIntoDescriptor)446{447    "use strict";448    @assert(stream.@state !== @streamErrored);449    let done = false;450    if (stream.@state === @streamClosed) {451        @assert(!pullIntoDescriptor.bytesFilled);452        done = true;453    }454    let filledView = @readableByteStreamControllerConvertDescriptor(pullIntoDescriptor);455    if (pullIntoDescriptor.readerType === "default")456        @readableStreamFulfillReadRequest(stream, filledView, done);457    else {458        @assert(pullIntoDescriptor.readerType === "byob");459        @readableStreamFulfillReadIntoRequest(stream, filledView, done);460    }461}462// Spec name: readableByteStreamControllerConvertPullIntoDescriptor (shortened for readability).463function readableByteStreamControllerConvertDescriptor(pullIntoDescriptor)464{465    "use strict";466    @assert(pullIntoDescriptor.bytesFilled <= pullIntoDescriptor.byteLength);467    @assert(pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize === 0);468    return new pullIntoDescriptor.ctor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, pullIntoDescriptor.bytesFilled / pullIntoDescriptor.elementSize);469}470function readableStreamFulfillReadIntoRequest(stream, chunk, done)471{472    "use strict";473    stream.@reader.@readIntoRequests.@shift().@resolve.@call(@undefined, {value: chunk, done: done});...

Using AI Code Generation

1var rs = new ReadableStream({2    start(controller) {3        controller.enqueue(new Uint8Array([1, 2, 3, 4, 5]));4        controller.close();5    }6});7var reader = rs.getReader();8reader.read().then(function(result) {9    console.log(result.value);10    console.log(result.done);11});12var rs = new ReadableStream({13    start(controller) {14        controller.enqueue(new Uint8Array([1, 2, 3, 4, 5]));15        controller.close();16    }17});18var reader = rs.getReader();19reader.read().then(function(result) {20    console.log(result.value);21    console.log(result.done);22});23var rs = new ReadableStream({24    start(controller) {25        controller.enqueue(new Uint8Array([1, 2, 3, 4, 5]));26        controller.close();27    }28});29var reader = rs.getReader();30reader.read().then(function(result) {31    console.log(result.value);32    console.log(result.done);33});34var rs = new ReadableStream({35    start(controller) {36        controller.enqueue(new Uint8Array([1, 2, 3, 4, 5]));37        controller.close();38    }39});40var reader = rs.getReader();41reader.read().then(function(result) {42    console.log(result.value);43    console.log(result.done);44});45var rs = new ReadableStream({46    start(controller) {47        controller.enqueue(new Uint8Array([1, 2, 3, 4, 5]));48        controller.close();49    }50});51var reader = rs.getReader({ mode: 'byob' });52var view = new Uint8Array(1);53reader.read(view).then(function(result) {54    console.log(result.value);55    console.log(result.done);56});

Using AI Code Generation

1var rs = new ReadableStream({2  pull: function(c) {3    c.enqueue('a');4    c.enqueue('b');5    c.enqueue('c');6  }7});8rs.getReader().read().then(function(result) {9  assert_equals(result.value, 'a');10  assert_false(result.done);11  return rs.getReader().read();12}).then(function(result) {13  assert_equals(result.value, 'b');14  assert_false(result.done);15  return rs.getReader().read();16}).then(function(result) {17  assert_equals(result.value, 'c');18  assert_false(result.done);19  return rs.getReader().read();20}).then(function(result) {21  assert_equals(result.value, undefined);22  assert_true(result.done);23}).catch(unreached_rejection(t));24var rs = new ReadableStream({25  pull: function(c) {26    var buffer = new Uint8Array(3);27    buffer[0] = 0x61;28    buffer[1] = 0x62;29    buffer[2] = 0x63;30    c.enqueue(buffer);31  }32});33rs.getReader().read().then(function(result) {34  assert_equals(result.value[0], 0x61);35  assert_equals(result.value[1], 0x62);36  assert_equals(result.value[2], 0x63);37  assert_false(result.done);38  return rs.getReader().read();39}).then(function(result) {40  assert_equals(result.value, undefined);41  assert_true(result.done);42}).catch(unreached_rejection(t));43var rs = new ReadableStream({44  pull: function(c) {45    var buffer = new Uint8Array(3);46    buffer[0] = 0x61;47    buffer[1] = 0x62;48    buffer[2] = 0x63;49    c.enqueue(buffer);50    c.close();51  }52});53rs.getReader().read().then(function(result) {54  assert_equals(result.value[0], 0x61);55  assert_equals(result.value[1], 0x62);56  assert_equals(result.value[2], 0x63);57  assert_false(result.done);58  return rs.getReader().read();59}).then

Using AI Code Generation

1const rs = new ReadableStream({2  start(controller) {3    controller.enqueue('a');4    controller.enqueue('b');5    controller.enqueue('c');6  }7});8const reader = rs.getReader();9const read = async () => {10  const result = await reader.read();11  if (!result.done) {12    console.log(result.value);13    await new Promise(resolve => setTimeout(resolve, 1000));14    read();15  }16};17read();18const rs = new ReadableStream({19  pull(controller) {20    controller.enqueue(new Uint8Array([0, 1, 2]).buffer);21    controller.close();22  }23});24const reader = rs.getReader();25const read = async () => {26  const result = await reader.read();27  if (!result.done) {28    console.log(result.value);29    await new Promise(resolve => setTimeout(resolve, 1000));30    read();31  }32};33read();34const rs = new ReadableStream({35  pull(controller) {36    controller.enqueue(new Uint8Array([0, 1, 2]).buffer);37    controller.close();38  }39});40const reader = rs.getReader();41const read = async () => {42  const result = await reader.read();43  if (!result.done) {44    console.log(result.value);45    await new Promise(resolve => setTimeout(resolve, 1000));46    read();47  }48};49read();50const rs = new ReadableStream({51  pull(controller) {52    controller.error();53  }54});55const reader = rs.getReader();56const read = async () => {57  const result = await reader.read();58  if (!result.done) {59    console.log(result.value);60    await new Promise(resolve => setTimeout(resolve, 1000));61    read();62  }63};64read();65const rs = new ReadableStream({66  pull(controller) {67    controller.enqueue(new Uint8Array([0, 1, 2]).buffer);68    controller.close();69  }70});71const reader = rs.getReader({ mode

Using AI Code Generation

1var assert = require('assert');2var BYOBRequest = require('../byob-request.js');3var ReadableByteStreamController = require('../readable-byte-stream-controller.js');4var ReadableStream = require('../readable-stream.js');5var ReadableStreamBYOBRequest = require('../readable-stream-byob-request.js');6var ReadableStreamDefaultController = require('../readable-stream-default-controller.js');7var ReadableStreamDefaultReader = require('../readable-stream-default-reader.js');8var ReadableStreamBYOBReader = require('../readable-stream-byob-reader.js');9var ReadableStreamTee = require('../readable-stream-tee.js');10var ReadableStreamDefaultControllerClose = require('../readable-stream-default-controller-close.js');11var ReadableStreamDefaultControllerEnqueue = require('../readable-stream-default-controller-enqueue

Using AI Code Generation

1var rs = new ReadableStream({2    start: function (c) {3        var controller = c;4        controller.enqueue(new Uint8Array([0x01, 0x02, 0x03]));5        controller.close();6    }7});8var reader = rs.getReader();9var readPromise = reader.read();10readPromise.then(function (result) {11    assert_true(result.done, 'done');12    assert_array_equals(new Uint8Array(result.value), new Uint8Array([0x01, 0x02, 0x03]), 'value');13    test.done();14});15Error: Assertion failed: The stream (in state readable) is not in the readable state and cannot be closed

Using AI Code Generation

1test(() => {2  const rs = new ReadableStream({3    pull(controller) {4      controller.enqueue([0x00, 0x01, 0x02]);5      controller.close();6    }7  });8  const reader = rs.getReader();9  return reader.read().then(result => {10    assert_false(result.done);11    assert_array_equals(result.value, [0x00, 0x01, 0x02]);12    return reader.read();13  }).then(result => {14    assert_true(result.done);15    assert_array_equals(result.value, []);16  });17}, 'ReadableByteStreamControllerRespondInternal should work');18test(() => {19  const rs = new ReadableStream({20    pull(controller) {21      controller.enqueue('a');22      controller.close();23    }24  });25  const reader = rs.getReader();26  return reader.read().then(result => {27    assert_false(result.done);28    assert_equals(result.value, 'a');29    return reader.read();30  }).then(result => {31    assert_true(result.done);32    assert_equals(result.value, undefined);33  });34}, 'ReadableStreamDefaultControllerRespond should work');35test(() => {36  const rs = new ReadableStream({37    pull(controller) {38      controller.enqueue('a');39      controller.close();40    }41  });42  const reader = rs.getReader();43  return reader.read().then(result => {44    assert_false(result.done);45    assert_equals(result.value, 'a');46    return reader.read();47  }).then(result => {48    assert_true(result.done);49    assert_equals(result.value, undefined);50  });51}, 'ReadableStreamDefaultControllerRespondInternal should work');52test(() => {53  const rs = new ReadableStream({54    pull(controller) {55      const view = new Uint8Array([0x00, 0x01, 0x02]).buffer;56      controller.enqueue(view);57      controller.close();58    }59  });60  const reader = rs.getReader();61  return reader.read().then(result => {62    assert_false(result.done);

Using AI Code Generation

1const {ReadableStream,ReadableStreamController} = require('stream/web');2const {ReadableByteStreamController} = require('stream/web');3const rs = new ReadableStream({4  pull(controller) {5    ReadableByteStreamControllerRespondInternal(controller, 1, true);6  }7});8const reader = rs.getReader();9reader.read().then(10  result => console.log(result),11  error => console.error(error)12);13const {ReadableStream,ReadableStreamController} = require('stream/web');14const {ReadableByteStreamController} = require('stream/web');15const rs = new ReadableStream({16  pull(controller) {17    ReadableByteStreamControllerRespondInternal(controller, 1, false);18  }19});20const reader = rs.getReader();21reader.read().then(22  result => console.log(result),23  error => console.error(error)24);25const {ReadableStream,ReadableStreamController} = require('stream/web');26const {ReadableByteStreamController} = require('stream/web');27const rs = new ReadableStream({28  pull(controller) {29    ReadableByteStreamControllerRespondInternal(controller, 1, true);30  }31});32const reader = rs.getReader();33reader.read().then(34  result => console.log(result),35  error => console.error(error)36);37const {ReadableStream,ReadableStreamController} = require('stream/web');38const {ReadableByteStreamController} = require('stream/web');39const rs = new ReadableStream({40  pull(controller) {41    ReadableByteStreamControllerRespondInternal(controller, 1, false);42  }43});44const reader = rs.getReader();45reader.read().then(46  result => console.log(result),47  error => console.error(error)48);

Using AI Code Generation

1const rs = new ReadableStream({2  start(c) {3    c.enqueue('a');4    c.close();5  }6});7rs.getReader().read().then(() => {8  rs.getReader().releaseLock();9  rs.getReader().read();10});11function ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {12  if (controller._pendingPullIntos.length === 0) {13    throw new TypeError('Assertion failed: _pendingPullIntos.length > 0');14  }15  ReadableByteStreamControllerRespondInternal(controller, bytesWritten);16}17function ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {18  const firstDescriptor = controller._pendingPullIntos[0];19  if (bytesWritten === 0) {20    throw new TypeError('Assertion failed: bytesWritten > 0');21  }22  ReadableByteStreamControllerRespondInternal(controller, bytesWritten);23}24function ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {25  const firstDescriptor = controller._pendingPullIntos[0];26  if (bytesWritten > firstDescriptor.bytesFilled + firstDescriptor.byobRequest._view.byteLength) {27    throw new TypeError('Assertion failed: bytesWritten <= BYOBRequest.view.byteLength');28  }29  ReadableByteStreamControllerRespondInternal(controller, bytesWritten);30}31function ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {32  const firstDescriptor = controller._pendingPullIntos[0];33  if (bytesWritten > firstDescriptor.bytesFilled + firstDescriptor.byobRequest._view.byteLength) {34    throw new TypeError('Assertion failed: bytesWritten <= BYOBRequest.view.byteLength');35  }36  ReadableByteStreamControllerRespondInternal(controller, bytesWritten);37}

Automation Testing Tutorials

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