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How to use ReadableStreamClose method in wpt

Best JavaScript code snippet using wpt

ReadableStreamInternals.js

Source:ReadableStreamInternals.js

1/*2 * Copyright (C) 2015 Canon Inc. All rights reserved.3 * Copyright (C) 2015 Igalia.4 *5 * Redistribution and use in source and binary forms, with or without6 * modification, are permitted provided that the following conditions7 * are met:8 * 1. Redistributions of source code must retain the above copyright9 *    notice, this list of conditions and the following disclaimer.10 * 2. Redistributions in binary form must reproduce the above copyright11 *    notice, this list of conditions and the following disclaimer in the12 *    documentation and/or other materials provided with the distribution.13 *14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.25 */26// @conditional=ENABLE(READABLE_STREAM_API)27// @internal28function privateInitializeReadableStreamDefaultReader(stream)29{30    "use strict";31    if (!@isReadableStream(stream))32       @throwTypeError("ReadableStreamDefaultReader needs a ReadableStream");33    if (@isReadableStreamLocked(stream))34       @throwTypeError("ReadableStream is locked");35    @readableStreamReaderGenericInitialize(this, stream);36    this.@readRequests = [];37    return this;38}39function readableStreamReaderGenericInitialize(reader, stream)40{41    "use strict";42    reader.@ownerReadableStream = stream;43    stream.@reader = reader;44    if (stream.@state === @streamReadable)45        reader.@closedPromiseCapability = @newPromiseCapability(@Promise);46    else if (stream.@state === @streamClosed)47        reader.@closedPromiseCapability = { @promise: @Promise.@resolve() };48    else {49        @assert(stream.@state === @streamErrored);50        reader.@closedPromiseCapability = { @promise: @Promise.@reject(stream.@storedError) };51    }52}53function privateInitializeReadableStreamDefaultController(stream, underlyingSource, size, highWaterMark)54{55    "use strict";56    if (!@isReadableStream(stream))57        @throwTypeError("ReadableStreamDefaultController needs a ReadableStream");58    // readableStreamController is initialized with null value.59    if (stream.@readableStreamController !== null)60        @throwTypeError("ReadableStream already has a controller");61    this.@controlledReadableStream = stream;62    this.@underlyingSource = underlyingSource;63    this.@queue = @newQueue();64    this.@started = false;65    this.@closeRequested = false;66    this.@pullAgain = false;67    this.@pulling = false;68    this.@strategy = @validateAndNormalizeQueuingStrategy(size, highWaterMark);69    const controller = this;70    @promiseInvokeOrNoopNoCatch(underlyingSource, "start", [this]).@then(() => {71        controller.@started = true;72        @assert(!controller.@pulling);73        @assert(!controller.@pullAgain);74        @readableStreamDefaultControllerCallPullIfNeeded(controller);75    }, (error) => {76        if (stream.@state === @streamReadable)77            @readableStreamDefaultControllerError(controller, error);78    });79    this.@cancel = @readableStreamDefaultControllerCancel;80    this.@pull = @readableStreamDefaultControllerPull;81    return this;82}83function readableStreamDefaultControllerError(controller, error)84{85    "use strict";86    const stream = controller.@controlledReadableStream;87    @assert(stream.@state === @streamReadable);88    controller.@queue = @newQueue();89    @readableStreamError(stream, error);90}91function readableStreamTee(stream, shouldClone)92{93    "use strict";94    @assert(@isReadableStream(stream));95    @assert(typeof(shouldClone) === "boolean");96    const reader = new @ReadableStreamDefaultReader(stream);97    const teeState = {98        closedOrErrored: false,99        canceled1: false,100        canceled2: false,101        reason1: @undefined,102        reason2: @undefined,103    };104    teeState.cancelPromiseCapability = @newPromiseCapability(@InternalPromise);105    const pullFunction = @readableStreamTeePullFunction(teeState, reader, shouldClone);106    const branch1 = new @ReadableStream({107        "pull": pullFunction,108        "cancel": @readableStreamTeeBranch1CancelFunction(teeState, stream)109    });110    const branch2 = new @ReadableStream({111        "pull": pullFunction,112        "cancel": @readableStreamTeeBranch2CancelFunction(teeState, stream)113    });114    reader.@closedPromiseCapability.@promise.@then(@undefined, function(e) {115        if (teeState.closedOrErrored)116            return;117        @readableStreamDefaultControllerError(branch1.@readableStreamController, e);118        @readableStreamDefaultControllerError(branch2.@readableStreamController, e);119        teeState.closedOrErrored = true;120    });121    // Additional fields compared to the spec, as they are needed within pull/cancel functions.122    teeState.branch1 = branch1;123    teeState.branch2 = branch2;124    return [branch1, branch2];125}126function doStructuredClone(object)127{128    "use strict";129    // FIXME: We should implement http://w3c.github.io/html/infrastructure.html#ref-for-structured-clone-4130    // Implementation is currently limited to ArrayBuffer/ArrayBufferView to meet Fetch API needs.131    if (object instanceof @ArrayBuffer)132        return @structuredCloneArrayBuffer(object);133    if (@ArrayBuffer.@isView(object))134        return @structuredCloneArrayBufferView(object);135    @throwTypeError("structuredClone not implemented for: " + object);136}137function readableStreamTeePullFunction(teeState, reader, shouldClone)138{139    "use strict";140    return function() {141        @Promise.prototype.@then.@call(@readableStreamDefaultReaderRead(reader), function(result) {142            @assert(@isObject(result));143            @assert(typeof result.done === "boolean");144            if (result.done && !teeState.closedOrErrored) {145                if (!teeState.canceled1)146                    @readableStreamDefaultControllerClose(teeState.branch1.@readableStreamController);147                if (!teeState.canceled2)148                    @readableStreamDefaultControllerClose(teeState.branch2.@readableStreamController);149                teeState.closedOrErrored = true;150            }151            if (teeState.closedOrErrored)152                return;153            if (!teeState.canceled1)154                @readableStreamDefaultControllerEnqueue(teeState.branch1.@readableStreamController, result.value);155            if (!teeState.canceled2)156                @readableStreamDefaultControllerEnqueue(teeState.branch2.@readableStreamController, shouldClone ? @doStructuredClone(result.value) : result.value);157        });158    }159}160function readableStreamTeeBranch1CancelFunction(teeState, stream)161{162    "use strict";163    return function(r) {164        teeState.canceled1 = true;165        teeState.reason1 = r;166        if (teeState.canceled2) {167            @readableStreamCancel(stream, [teeState.reason1, teeState.reason2]).@then(168                teeState.cancelPromiseCapability.@resolve,169                teeState.cancelPromiseCapability.@reject);170        }171        return teeState.cancelPromiseCapability.@promise;172    }173}174function readableStreamTeeBranch2CancelFunction(teeState, stream)175{176    "use strict";177    return function(r) {178        teeState.canceled2 = true;179        teeState.reason2 = r;180        if (teeState.canceled1) {181            @readableStreamCancel(stream, [teeState.reason1, teeState.reason2]).@then(182                teeState.cancelPromiseCapability.@resolve,183                teeState.cancelPromiseCapability.@reject);184        }185        return teeState.cancelPromiseCapability.@promise;186    }187}188function isReadableStream(stream)189{190    "use strict";191    // Spec tells to return true only if stream has a readableStreamController internal slot.192    // However, since it is a private slot, it cannot be checked using hasOwnProperty().193    // Therefore, readableStreamController is initialized with null value.194    return @isObject(stream) && stream.@readableStreamController !== @undefined;195}196function isReadableStreamDefaultReader(reader)197{198    "use strict";199    // Spec tells to return true only if reader has a readRequests internal slot.200    // However, since it is a private slot, it cannot be checked using hasOwnProperty().201    // Since readRequests is initialized with an empty array, the following test is ok.202    return @isObject(reader) && !!reader.@readRequests;203}204function isReadableStreamDefaultController(controller)205{206    "use strict";207    // Spec tells to return true only if controller has an underlyingSource internal slot.208    // However, since it is a private slot, it cannot be checked using hasOwnProperty().209    // underlyingSource is obtained in ReadableStream constructor: if undefined, it is set210    // to an empty object. Therefore, following test is ok.211    return @isObject(controller) && !!controller.@underlyingSource;212}213function readableStreamError(stream, error)214{215    "use strict";216    @assert(@isReadableStream(stream));217    @assert(stream.@state === @streamReadable);218    stream.@state = @streamErrored;219    stream.@storedError = error;220    if (!stream.@reader)221        return;222    const reader = stream.@reader;223    if (@isReadableStreamDefaultReader(reader)) {224        const requests = reader.@readRequests;225        for (let index = 0, length = requests.length; index < length; ++index)226            requests[index].@reject.@call(@undefined, error);227        reader.@readRequests = [];228    } else229        // FIXME: Implement ReadableStreamBYOBReader.230        @throwTypeError("Only ReadableStreamDefaultReader is currently supported");231    reader.@closedPromiseCapability.@reject.@call(@undefined, error);232}233function readableStreamDefaultControllerCallPullIfNeeded(controller)234{235    "use strict";236    const stream = controller.@controlledReadableStream;237    if (stream.@state === @streamClosed || stream.@state === @streamErrored)238        return;239    if (controller.@closeRequested)240        return;241    if (!controller.@started)242        return;243    if ((!@isReadableStreamLocked(stream) || !stream.@reader.@readRequests.length) && @readableStreamDefaultControllerGetDesiredSize(controller) <= 0)244        return;245    if (controller.@pulling) {246        controller.@pullAgain = true;247        return;248    }249    @assert(!controller.@pullAgain);250    controller.@pulling = true;251    @promiseInvokeOrNoop(controller.@underlyingSource, "pull", [controller]).@then(function() {252        controller.@pulling = false;253        if (controller.@pullAgain) {254            controller.@pullAgain = false;255            @readableStreamDefaultControllerCallPullIfNeeded(controller);256        }257    }, function(error) {258        if (stream.@state === @streamReadable)259            @readableStreamDefaultControllerError(controller, error);260    });261}262function isReadableStreamLocked(stream)263{264   "use strict";265    @assert(@isReadableStream(stream));266    return !!stream.@reader;267}268function readableStreamDefaultControllerGetDesiredSize(controller)269{270   "use strict";271   return controller.@strategy.highWaterMark - controller.@queue.size;272}273function readableStreamReaderGenericCancel(reader, reason)274{275    "use strict";276    const stream = reader.@ownerReadableStream;277    @assert(!!stream);278    return @readableStreamCancel(stream, reason);279}280function readableStreamCancel(stream, reason)281{282    "use strict";283    stream.@disturbed = true;284    if (stream.@state === @streamClosed)285        return @Promise.@resolve();286    if (stream.@state === @streamErrored)287        return @Promise.@reject(stream.@storedError);288    @readableStreamClose(stream);289    return stream.@readableStreamController.@cancel(stream.@readableStreamController, reason).@then(function() {  });290}291function readableStreamDefaultControllerCancel(controller, reason)292{293    "use strict";294    controller.@queue = @newQueue();295    return @promiseInvokeOrNoop(controller.@underlyingSource, "cancel", [reason]);296}297function readableStreamDefaultControllerPull(controller)298{299    "use strict";300    const stream = controller.@controlledReadableStream;301    if (controller.@queue.content.length) {302        const chunk = @dequeueValue(controller.@queue);303        if (controller.@closeRequested && controller.@queue.content.length === 0)304            @readableStreamClose(stream);305        else306            @readableStreamDefaultControllerCallPullIfNeeded(controller);307        return @Promise.@resolve({value: chunk, done: false});308    }309    const pendingPromise = @readableStreamAddReadRequest(stream);310    @readableStreamDefaultControllerCallPullIfNeeded(controller);311    return pendingPromise;312}313function readableStreamDefaultControllerClose(controller)314{315    "use strict";316    const stream = controller.@controlledReadableStream;317    @assert(!controller.@closeRequested);318    @assert(stream.@state === @streamReadable);319    controller.@closeRequested = true;320    if (controller.@queue.content.length === 0)321        @readableStreamClose(stream);322}323function readableStreamClose(stream)324{325    "use strict";326    @assert(stream.@state === @streamReadable);327    stream.@state = @streamClosed;328    const reader = stream.@reader;329    if (!reader)330        return;331    if (@isReadableStreamDefaultReader(reader)) {332        const requests = reader.@readRequests;333        for (let index = 0, length = requests.length; index < length; ++index)334            requests[index].@resolve.@call(@undefined, {value:@undefined, done: true});335        reader.@readRequests = [];336    }337    reader.@closedPromiseCapability.@resolve.@call();338}339function readableStreamFulfillReadRequest(stream, chunk, done)340{341    "use strict";342    stream.@reader.@readRequests.@shift().@resolve.@call(@undefined, {value: chunk, done: done});343}344function readableStreamDefaultControllerEnqueue(controller, chunk)345{346    "use strict";347    const stream = controller.@controlledReadableStream;348    @assert(!controller.@closeRequested);349    @assert(stream.@state === @streamReadable);350    if (@isReadableStreamLocked(stream) && stream.@reader.@readRequests.length) {351        @readableStreamFulfillReadRequest(stream, chunk, false);352        @readableStreamDefaultControllerCallPullIfNeeded(controller);353        return;354    }355    try {356        let chunkSize = 1;357        if (controller.@strategy.size !== @undefined)358            chunkSize = controller.@strategy.size(chunk);359        @enqueueValueWithSize(controller.@queue, chunk, chunkSize);360    }361    catch(error) {362        if (stream.@state === @streamReadable)363            @readableStreamDefaultControllerError(controller, error);364        throw error;365    }366    @readableStreamDefaultControllerCallPullIfNeeded(controller);367}368function readableStreamDefaultReaderRead(reader)369{370    "use strict";371    const stream = reader.@ownerReadableStream;372    @assert(!!stream);373    stream.@disturbed = true;374    if (stream.@state === @streamClosed)375        return @Promise.@resolve({value: @undefined, done: true});376    if (stream.@state === @streamErrored)377        return @Promise.@reject(stream.@storedError);378    @assert(stream.@state === @streamReadable);379    return stream.@readableStreamController.@pull(stream.@readableStreamController);380}381function readableStreamAddReadRequest(stream)382{383    "use strict";384    @assert(@isReadableStreamDefaultReader(stream.@reader));385    @assert(stream.@state == @streamReadable);386    const readRequest = @newPromiseCapability(@Promise);387    stream.@reader.@readRequests.@push(readRequest);388    return readRequest.@promise;389}390function isReadableStreamDisturbed(stream)391{392    "use strict";393    @assert(@isReadableStream(stream));394    return stream.@disturbed;395}396function readableStreamReaderGenericRelease(reader)397{398    "use strict";399    @assert(!!reader.@ownerReadableStream);400    @assert(reader.@ownerReadableStream.@reader === reader);401    if (reader.@ownerReadableStream.@state === @streamReadable)402        reader.@closedPromiseCapability.@reject.@call(@undefined, new @TypeError("releasing lock of reader whose stream is still in readable state"));403    else404        reader.@closedPromiseCapability = { @promise: @Promise.@reject(new @TypeError("reader released lock")) };405    reader.@ownerReadableStream.@reader = @undefined;406    reader.@ownerReadableStream = null;...

readable_stream_controller.ts

Source:readable_stream_controller.ts

...106    if (this.queue.length > 0) {107      const chunk = DequeueValue(this);108      if (this.closeRequested && this.queue.length === 0) {109        ReadableStreamDefaultControllerClearAlgorithms(this);110        ReadableStreamClose(stream);111      } else {112        ReadableStreamDefaultControllerCallPullIfNeeded(this);113      }114      return Promise.resolve(115        ReadableStreamCreateReadResult(chunk, false, forAuthorCode)116      );117    }118    const pendingPromise = ReadableStreamAddReadRequest(stream, forAuthorCode);119    ReadableStreamDefaultControllerCallPullIfNeeded(this);120    return pendingPromise;121  }122}123export function IsReadableStreamDefaultController<T>(124  x125): x is ReadableStreamDefaultController<T> {126  return typeof x === "object" && x.hasOwnProperty("controlledReadableStream");127}128export function ReadableStreamDefaultControllerCallPullIfNeeded<T>(129  controller: ReadableStreamDefaultController<T>130) {131  const shouldPull = ReadableStreamDefaultControllerShouldCallPull(controller);132  if (!shouldPull) {133    return;134  }135  if (controller.pulling) {136    controller.pullAgain = true;137    return;138  }139  Assert(!controller.pullAgain);140  controller.pulling = true;141  controller142    .pullAlgorithm()143    .then(() => {144      controller.pulling = false;145      if (controller.pullAgain) {146        controller.pullAgain = false;147        ReadableStreamDefaultControllerCallPullIfNeeded(controller);148      }149    })150    .catch(r => {151      ReadableStreamDefaultControllerError(controller, r);152    });153}154export function ReadableStreamDefaultControllerShouldCallPull<T>(155  controller: ReadableStreamDefaultController<T>156) {157  const stream = controller.controlledReadableStream;158  if (!ReadableStreamDefaultControllerCanCloseOrEnqueue(controller)) {159    return false;160  }161  if (!controller.started) {162    return false;163  }164  if (165    IsReadableStreamLocked(stream) &&166    ReadableStreamGetNumReadRequests(stream) > 0167  ) {168    return true;169  }170  const desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);171  Assert(desiredSize !== null);172  return desiredSize > 0;173}174export function ReadableStreamDefaultControllerClearAlgorithms<T>(175  controller: ReadableStreamDefaultController<T>176) {177  controller.pullAlgorithm = void 0;178  controller.cancelAlgorithm = void 0;179  controller.strategySizeAlgorithm = void 0;180}181export function ReadableStreamDefaultControllerClose<T>(controller) {182  const stream = controller.controlledReadableStream;183  Assert(ReadableStreamDefaultControllerCanCloseOrEnqueue(controller));184  controller.closeRequested = true;185  if (controller.queue.length === 0) {186    ReadableStreamDefaultControllerClearAlgorithms(controller);187    ReadableStreamClose(stream);188  }189}190export function ReadableStreamDefaultControllerEnqueue<T>(controller, chunk) {191  if (IsReadableStreamDefaultController(controller)) {192    const stream = controller.controlledReadableStream;193    Assert(ReadableStreamDefaultControllerCanCloseOrEnqueue(controller));194    if (195      IsReadableStreamLocked(stream) &&196      ReadableStreamGetNumReadRequests(stream) > 0197    ) {198      ReadableStreamFulfillReadRequest(stream, chunk, false);199    } else {200      let result: number;201      try {...

readable_stream_default_controller.ts

Source:readable_stream_default_controller.ts

1// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.2import {3  CancelAlgorithm,4  dequeueValue,5  isReadableStreamDefaultController,6  Pair,7  PullAlgorithm,8  readableStreamAddReadRequest,9  readableStreamClose,10  readableStreamCreateReadResult,11  readableStreamDefaultControllerCallPullIfNeeded,12  readableStreamDefaultControllerCanCloseOrEnqueue,13  readableStreamDefaultControllerClearAlgorithms,14  readableStreamDefaultControllerClose,15  readableStreamDefaultControllerEnqueue,16  readableStreamDefaultControllerError,17  readableStreamDefaultControllerGetDesiredSize,18  resetQueue,19  SizeAlgorithm,20  setFunctionName,21} from "./internals.ts";22import { ReadableStreamImpl } from "./readable_stream.ts";23import * as sym from "./symbols.ts";24import { customInspect } from "../console.ts";25// eslint-disable-next-line @typescript-eslint/no-explicit-any26export class ReadableStreamDefaultControllerImpl<R = any>27  implements ReadableStreamDefaultController<R> {28  [sym.cancelAlgorithm]: CancelAlgorithm;29  [sym.closeRequested]: boolean;30  [sym.controlledReadableStream]: ReadableStreamImpl<R>;31  [sym.pullAgain]: boolean;32  [sym.pullAlgorithm]: PullAlgorithm;33  [sym.pulling]: boolean;34  [sym.queue]: Array<Pair<R>>;35  [sym.queueTotalSize]: number;36  [sym.started]: boolean;37  [sym.strategyHWM]: number;38  [sym.strategySizeAlgorithm]: SizeAlgorithm<R>;39  private constructor() {40    throw new TypeError(41      "ReadableStreamDefaultController's constructor cannot be called."42    );43  }44  get desiredSize(): number | null {45    if (!isReadableStreamDefaultController(this)) {46      throw new TypeError("Invalid ReadableStreamDefaultController.");47    }48    return readableStreamDefaultControllerGetDesiredSize(this);49  }50  close(): void {51    if (!isReadableStreamDefaultController(this)) {52      throw new TypeError("Invalid ReadableStreamDefaultController.");53    }54    if (!readableStreamDefaultControllerCanCloseOrEnqueue(this)) {55      throw new TypeError(56        "ReadableStreamDefaultController cannot close or enqueue."57      );58    }59    readableStreamDefaultControllerClose(this);60  }61  enqueue(chunk: R): void {62    if (!isReadableStreamDefaultController(this)) {63      throw new TypeError("Invalid ReadableStreamDefaultController.");64    }65    if (!readableStreamDefaultControllerCanCloseOrEnqueue(this)) {66      throw new TypeError("ReadableSteamController cannot enqueue.");67    }68    return readableStreamDefaultControllerEnqueue(this, chunk);69  }70  // eslint-disable-next-line @typescript-eslint/no-explicit-any71  error(error?: any): void {72    if (!isReadableStreamDefaultController(this)) {73      throw new TypeError("Invalid ReadableStreamDefaultController.");74    }75    readableStreamDefaultControllerError(this, error);76  }77  // eslint-disable-next-line @typescript-eslint/no-explicit-any78  [sym.cancelSteps](reason?: any): PromiseLike<void> {79    resetQueue(this);80    const result = this[sym.cancelAlgorithm](reason);81    readableStreamDefaultControllerClearAlgorithms(this);82    return result;83  }84  [sym.pullSteps](): Promise<ReadableStreamReadResult<R>> {85    const stream = this[sym.controlledReadableStream];86    if (this[sym.queue].length) {87      const chunk = dequeueValue<R>(this);88      if (this[sym.closeRequested] && this[sym.queue].length === 0) {89        readableStreamDefaultControllerClearAlgorithms(this);90        readableStreamClose(stream);91      } else {92        readableStreamDefaultControllerCallPullIfNeeded(this);93      }94      return Promise.resolve(95        readableStreamCreateReadResult(96          chunk,97          false,98          stream[sym.reader]![sym.forAuthorCode]99        )100      );101    }102    const pendingPromise = readableStreamAddReadRequest(stream);103    readableStreamDefaultControllerCallPullIfNeeded(this);104    return pendingPromise;105  }106  [customInspect](): string {107    return `${this.constructor.name} { desiredSize: ${String(108      this.desiredSize109    )} }`;110  }111}112setFunctionName(113  ReadableStreamDefaultControllerImpl,114  "ReadableStreamDefaultController"...

Using AI Code Generation

1var rs = new ReadableStream({2  start: function(controller) {3    controller.enqueue('a');4    controller.enqueue('b');5  }6});7var reader = rs.getReader();8reader.read().then(function(result) {9  assert_object_equals(result, {value: 'a', done: false}, 'result1');10  return reader.read();11}).then(function(result) {12  assert_object_equals(result, {value: 'b', done: false}, 'result2');13  return ReadableStreamClose(rs);14}).then(function() {15  return reader.closed;16}).then(function() {17  test.done();18}).catch(unreached_rejection(test));19var rs = new ReadableStream({20  start: function(controller) {21    controller.enqueue('a');22    controller.enqueue('b');23  }24});25var reader = rs.getReader();26reader.read().then(function(result) {27  assert_object_equals(result, {value: 'a', done: false}, 'result1');28  return reader.read();29}).then(function(result) {30  assert_object_equals(result, {value: 'b', done: false}, 'result2');31  return reader.read();32}).then(function(result) {33  assert_object_equals(result, {value: undefined, done: true}, 'result3');34  test.done();35}).catch(unreached_rejection(test));36var rs = new ReadableStream({37  start: function(controller) {38    controller.enqueue('a');39    controller.enqueue('b');40  }41});42var reader = rs.getReader();43reader.read().then(function(result) {44  assert_object_equals(result, {value: 'a', done: false}, 'result1');45  return reader.read();46}).then(function(result) {47  assert_object_equals(result, {value: 'b', done: false}, 'result2');48  return reader.read();49}).then(function(result) {50  assert_object_equals(result, {value: undefined, done: true}, 'result3');51  test.done();52}).catch(unreached_rejection(test));53var rs = new ReadableStream({54  start: function(controller) {55    controller.enqueue('a

Using AI Code Generation

1var rs = new ReadableStream();2rs.cancel();3assert_equals(rs.state, "closed");4var rs = new ReadableStream();5rs.cancel();6assert_equals(rs.state, "errored");7var rs = new ReadableStream();8rs.cancel();9assert_equals(rs.state, "closed");10var rs = new ReadableStream();11rs.cancel();12assert_equals(rs.state, "closed");13var rs = new ReadableStream();14rs.cancel();15assert_equals(rs.state, "errored");16var rs = new ReadableStream();17rs.cancel();18assert_equals(rs.state, "closed");19var rs = new ReadableStream();20rs.cancel();21assert_equals(rs.state, "closed");22var rs = new ReadableStream();23rs.cancel();24assert_equals(rs.state, "closed");25var rs = new ReadableStream();26rs.cancel();27assert_equals(rs.state, "closed");28var rs = new ReadableStream();29rs.cancel();30assert_equals(rs.state, "closed");31var rs = new ReadableStream();32rs.cancel();33assert_equals(rs.state, "closed");34var rs = new ReadableStream();35rs.cancel();36assert_equals(rs.state, "closed");37var rs = new ReadableStream();38rs.cancel();39assert_equals(rs.state, "closed");40var rs = new ReadableStream();41rs.cancel();42assert_equals(rs.state, "closed");

Using AI Code Generation

1var rs = new ReadableStream();2rs.cancel();3rs.cancel();4rs.cancel();5rs.cancel();6rs.cancel();7rs.cancel();8rs.cancel();9rs.cancel();10rs.cancel();11rs.cancel();12var rs = new ReadableStream();13rs.cancel();14rs.cancel();15rs.cancel();16rs.cancel();17rs.cancel();18rs.cancel();19rs.cancel();20rs.cancel();21rs.cancel();22rs.cancel();23var rs = new ReadableStream();24rs.cancel();25rs.cancel();26rs.cancel();27rs.cancel();28rs.cancel();29rs.cancel();30rs.cancel();31rs.cancel();32rs.cancel();33rs.cancel();34var rs = new ReadableStream();35rs.cancel();36rs.cancel();37rs.cancel();38rs.cancel();39rs.cancel();40rs.cancel();41rs.cancel();42rs.cancel();43rs.cancel();44rs.cancel();45var rs = new ReadableStream();46rs.cancel();47rs.cancel();48rs.cancel();49rs.cancel();50rs.cancel();51rs.cancel();52rs.cancel();53rs.cancel();54rs.cancel();55rs.cancel();56var rs = new ReadableStream();57rs.cancel();58rs.cancel();59rs.cancel();60rs.cancel();61rs.cancel();62rs.cancel();63rs.cancel();64rs.cancel();65rs.cancel();66rs.cancel();67var rs = new ReadableStream();68rs.cancel();69rs.cancel();70rs.cancel();71rs.cancel();72rs.cancel();73rs.cancel();74rs.cancel();75rs.cancel();76rs.cancel();77rs.cancel();78var rs = new ReadableStream();79rs.cancel();80rs.cancel();81rs.cancel();82rs.cancel();83rs.cancel();84rs.cancel();85rs.cancel();86rs.cancel();87rs.cancel();88rs.cancel();89var rs = new ReadableStream();90rs.cancel();91rs.cancel();92rs.cancel();93rs.cancel();94rs.cancel();95rs.cancel();96rs.cancel();97rs.cancel();98rs.cancel();99rs.cancel();

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});8rs.getReader().read().then(result => {9  console.log(result.value);

Using AI Code Generation

1var rs = new ReadableStream();2rs.cancel();3rs.close();4rs.enqueue();5rs.read();6rs.releaseLock();7rs.tee();8rs.pipeTo();9rs.pipeThrough();10rs.underlyingSource;11var rs = new ReadableStream();12rs.cancel();13rs.close();14rs.enqueue();15rs.read();16rs.releaseLock();17rs.tee();18rs.pipeTo();19rs.pipeThrough();20rs.underlyingSource;21var rs = new ReadableStream();22rs.cancel();23rs.close();24rs.enqueue();25rs.read();26rs.releaseLock();27rs.tee();28rs.pipeTo();29rs.pipeThrough();30rs.underlyingSource;31var rs = new ReadableStream();32rs.cancel();33rs.close();34rs.enqueue();35rs.read();36rs.releaseLock();37rs.tee();38rs.pipeTo();39rs.pipeThrough();40rs.underlyingSource;41var rs = new ReadableStream();42rs.cancel();43rs.close();44rs.enqueue();45rs.read();46rs.releaseLock();47rs.tee();48rs.pipeTo();49rs.pipeThrough();50rs.underlyingSource;51var rs = new ReadableStream();52rs.cancel();53rs.close();54rs.enqueue();55rs.read();56rs.releaseLock();57rs.tee();58rs.pipeTo();59rs.pipeThrough();60rs.underlyingSource;61var rs = new ReadableStream();62rs.cancel();63rs.close();64rs.enqueue();65rs.read();66rs.releaseLock();67rs.tee();68rs.pipeTo();69rs.pipeThrough();70rs.underlyingSource;71var rs = new ReadableStream();72rs.cancel();73rs.close();74rs.enqueue();75rs.read();76rs.releaseLock();77rs.tee();78rs.pipeTo();79rs.pipeThrough();80rs.underlyingSource;81var rs = new ReadableStream();82rs.cancel();83rs.close();84rs.enqueue();85rs.read();86rs.releaseLock();87rs.tee();88rs.pipeTo();89rs.pipeThrough();90rs.underlyingSource;

Using AI Code Generation

1var rs = new ReadableStream();2rs.cancel();3rs.getReader().closed.then(function() {4  console.log("closed");5});6Flags: needinfo?(jgraham)

Using AI Code Generation

1import { ReadableStream } from 'web-streams-polyfill/ponyfill';2import { ReadableStreamClose } from 'web-streams-polyfill/dist/readable-stream';3import { ReadableStreamDefaultControllerClose } from 'web-streams-polyfill/dist/readable-stream-controller';4const rs = new ReadableStream({5  start(controller) {6    controller.enqueue('a');7    controller.enqueue('b');8    controller.enqueue('c');9    controller.close();10  }11});12ReadableStreamClose(rs);13const rs = new ReadableStream({14  start(controller) {15    controller.enqueue('a');16    controller.enqueue('b');17    controller.enqueue('c');18  }19});20ReadableStreamDefaultControllerClose(rs._readableStreamController);21const rs = new ReadableStream({22  start(controller) {23    controller.enqueue('a');24    controller.enqueue('b');25    controller.enqueue('c');26  }27});28ReadableStreamClose(rs);29const rs = new ReadableStream({30  start(controller) {31    controller.enqueue('a');32    controller.enqueue('b');33    controller.enqueue('c');34  }35});36ReadableStreamDefaultControllerClose(rs._readableStreamController);37const rs = new ReadableStream({38  start(controller) {39    controller.enqueue('a');40    controller.enqueue('b');41    controller.enqueue('c');42  }43});44ReadableStreamClose(rs);45const rs = new ReadableStream({46  start(controller) {47    controller.enqueue('a');48    controller.enqueue('b');49    controller.enqueue('c');50  }51});52ReadableStreamDefaultControllerClose(rs._readableStreamController);53const rs = new ReadableStream({54  start(controller) {55    controller.enqueue('a');56    controller.enqueue('b');57    controller.enqueue('c');58  }59});60ReadableStreamClose(rs);61const rs = new ReadableStream({62  start(controller) {63    controller.enqueue('a');64    controller.enqueue('

Automation Testing Tutorials

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