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How to use ReadableStreamAddReadRequest method in wpt

Best JavaScript code snippet using wpt

readable_byte_stream_controller.ts

Source:readable_byte_stream_controller.ts

1// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.2import {3  BufferQueueItem,4  CancelAlgorithm,5  isDetachedBuffer,6  isReadableByteStreamController,7  PullAlgorithm,8  resetQueue,9  readableByteStreamControllerCallPullIfNeeded,10  readableByteStreamControllerClearAlgorithms,11  readableByteStreamControllerClose,12  readableByteStreamControllerEnqueue,13  readableByteStreamControllerError,14  readableByteStreamControllerGetDesiredSize,15  readableByteStreamControllerHandleQueueDrain,16  readableStreamAddReadRequest,17  readableStreamHasDefaultReader,18  readableStreamGetNumReadRequests,19  readableStreamCreateReadResult,20  setFunctionName,21} from "./internals.ts";22import { ReadableStreamImpl } from "./readable_stream.ts";23import * as sym from "./symbols.ts";24import { assert } from "../../util.ts";25import { customInspect } from "../console.ts";26export class ReadableByteStreamControllerImpl27  implements ReadableByteStreamController {28  [sym.autoAllocateChunkSize]: number | undefined;29  [sym.byobRequest]: undefined;30  [sym.cancelAlgorithm]: CancelAlgorithm;31  [sym.closeRequested]: boolean;32  [sym.controlledReadableByteStream]: ReadableStreamImpl<Uint8Array>;33  [sym.pullAgain]: boolean;34  [sym.pullAlgorithm]: PullAlgorithm;35  [sym.pulling]: boolean;36  [sym.queue]: BufferQueueItem[];37  [sym.queueTotalSize]: number;38  [sym.started]: boolean;39  [sym.strategyHWM]: number;40  private constructor() {41    throw new TypeError(42      "ReadableByteStreamController's constructor cannot be called."43    );44  }45  get byobRequest(): undefined {46    return undefined;47  }48  get desiredSize(): number | null {49    if (!isReadableByteStreamController(this)) {50      throw new TypeError("Invalid ReadableByteStreamController.");51    }52    return readableByteStreamControllerGetDesiredSize(this);53  }54  close(): void {55    if (!isReadableByteStreamController(this)) {56      throw new TypeError("Invalid ReadableByteStreamController.");57    }58    if (this[sym.closeRequested]) {59      throw new TypeError("Closed already requested.");60    }61    if (this[sym.controlledReadableByteStream][sym.state] !== "readable") {62      throw new TypeError(63        "ReadableByteStreamController's stream is not in a readable state."64      );65    }66    readableByteStreamControllerClose(this);67  }68  enqueue(chunk: ArrayBufferView): void {69    if (!isReadableByteStreamController(this)) {70      throw new TypeError("Invalid ReadableByteStreamController.");71    }72    if (this[sym.closeRequested]) {73      throw new TypeError("Closed already requested.");74    }75    if (this[sym.controlledReadableByteStream][sym.state] !== "readable") {76      throw new TypeError(77        "ReadableByteStreamController's stream is not in a readable state."78      );79    }80    if (!ArrayBuffer.isView(chunk)) {81      throw new TypeError(82        "You can only enqueue array buffer views when using a ReadableByteStreamController"83      );84    }85    if (isDetachedBuffer(chunk.buffer)) {86      throw new TypeError("Cannot enqueue a view onto a detached ArrayBuffer");87    }88    readableByteStreamControllerEnqueue(this, chunk);89  }90  // eslint-disable-next-line @typescript-eslint/no-explicit-any91  error(error?: any): void {92    if (!isReadableByteStreamController(this)) {93      throw new TypeError("Invalid ReadableByteStreamController.");94    }95    readableByteStreamControllerError(this, error);96  }97  // eslint-disable-next-line @typescript-eslint/no-explicit-any98  [sym.cancelSteps](reason: any): PromiseLike<void> {99    // 3.11.5.1.1 If this.[[pendingPullIntos]] is not empty,100    resetQueue(this);101    const result = this[sym.cancelAlgorithm](reason);102    readableByteStreamControllerClearAlgorithms(this);103    return result;104  }105  [sym.pullSteps](): Promise<ReadableStreamReadResult<Uint8Array>> {106    const stream = this[sym.controlledReadableByteStream];107    assert(readableStreamHasDefaultReader(stream));108    if (this[sym.queueTotalSize] > 0) {109      assert(readableStreamGetNumReadRequests(stream) === 0);110      const entry = this[sym.queue].shift();111      assert(entry);112      this[sym.queueTotalSize] -= entry.size;113      readableByteStreamControllerHandleQueueDrain(this);114      const view = new Uint8Array(entry.value, entry.offset, entry.size);115      return Promise.resolve(116        readableStreamCreateReadResult(117          view,118          false,119          stream[sym.reader]![sym.forAuthorCode]120        )121      );122    }123    // 3.11.5.2.5 If autoAllocateChunkSize is not undefined,124    const promise = readableStreamAddReadRequest(stream);125    readableByteStreamControllerCallPullIfNeeded(this);126    return promise;127  }128  [customInspect](): string {129    return `${this.constructor.name} { byobRequest: ${String(130      this.byobRequest131    )}, desiredSize: ${String(this.desiredSize)} }`;132  }133}134setFunctionName(135  ReadableByteStreamControllerImpl,136  "ReadableByteStreamController"...

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

1const rs = new ReadableStream({2  start(controller) {3    controller.enqueue(new Uint8Array([0x01, 0x02, 0x03]));4    controller.close();5  }6});7const reader = rs.getReader();8const readRequest = {9  chunkSteps() {},10  closeSteps() {},11  errorSteps() {}12};13ReadableStreamAddReadRequest(reader, readRequest);14assert_equals(reader._readRequests.length, 1);15assert_equals(reader._readRequests[0], readRequest);16done();

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    controller.enqueue("a");4    controller.enqueue("b");5    controller.close();6  }7});8var reader = rs.getReader();9var read = reader.read();10read.then(result => {11  console.log(result.value);12  console.log(result.done);13});14read.then(result => {15  console.log(result.value);16  console.log(result.done);17});18var rs = new ReadableStream({19  start(controller) {20    controller.close();21  }22});23var reader = rs.getReader();24var read = reader.read();25read.then(result => {26  console.log(result.value);27  console.log(result.done);28});29var rs = new ReadableStream({30  start(controller) {31    controller.enqueue("a");32    controller.enqueue("b");33  }34});35var reader = rs.getReader();36var read = reader.read();37read.then(result => {38  console.log(result.value);39  console.log(result.done);40});41read = reader.read();42read.then(result => {43  console.log(result.value);44  console.log(result.done);45});46var rs = new ReadableStream({47  start(controller) {48    controller.error("boo!");49  }50});51var reader = rs.getReader();52var read = reader.read();53read.catch(e => {54  console.error(e);55});56var rs = new ReadableStream({57  start(controller) {58    controller.enqueue("a");59    controller.enqueue("b");60  }61});62var reader = rs.getReader();63var read = reader.read();64read.then(result => {65  console.log(result.value);66  console.log(result.done);67});68read = reader.read();69read.then(result => {70  console.log(result.value);71  console.log(result.done);72});

Using AI Code Generation

1const stream = new ReadableStream({2    start(controller) {3        controller.enqueue("a");4        controller.enqueue("b");5        controller.enqueue("c");6    }7});8let reader = stream.getReader();9reader.read().then(result1 => {10    console.log(result1.value);11    reader.read().then(result2 => {12        console.log(result2.value);13        reader.read().then(result3 => {14            console.log(result3.value);15            reader.read().then(result4 => {16                console.log(result4.done);17            });18        });19    });20});21const stream = new ReadableStream({22    start(controller) {23        controller.close();24    }25});26const reader = stream.getReader();27reader.read().then(result => {28    console.log(result.done);29});30const stream = new ReadableStream({31    start(controller) {32        controller.enqueue("a");33        controller.enqueue("b");34        controller.enqueue("c");35    }36});37const reader = stream.getReader();38reader.read().then(result1 => {39    console.log(result1.value);40    reader.read().then(result2 => {41        console.log(result2.value);42        reader.read().then(result3 => {43            console.log(result3.value);44            reader.read().then(result4 => {45                console.log(result4.done);46            });47        });48    });49});50const stream = new ReadableStream({51    start(controller) {52        controller.error("kaboom");53    }54});55const reader = stream.getReader();56reader.read().catch(e => {57    console.log(e);58});59const stream = new ReadableStream({60    start(controller) {61        console.log(controller.desiredSize);62        controller.enqueue("a");63        console.log(controller.desired

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});9var reader = rs.getReader();10var readRequest = new ReadableStreamAddReadRequest(rs, reader);11assert_equals(readRequest.chunk, "a");12assert_equals(readRequest.done, false);13readRequest = new ReadableStreamAddReadRequest(rs, reader);14assert_equals(readRequest.chunk, "b");15assert_equals(readRequest.done, false);16readRequest = new ReadableStreamAddReadRequest(rs, reader);17assert_equals(readRequest.chunk, "c");18assert_equals(readRequest.done, false);19readRequest = new ReadableStreamAddReadRequest(rs, reader);20assert_equals(readRequest.chunk, undefined);21assert_equals(readRequest.done, true);22done();23var rs = new ReadableStream({24  start(controller) {25  }26});27var controller = rs.getReader().readableStreamController;28ReadableStreamDefaultControllerGetDesiredSizeTest(controller);

Using AI Code Generation

1var rs = new ReadableStream();2var controller = rs.getReader().releaseLock().closed;3var pullCount = 0;4var pull = function() {5  pullCount++;6  if (pullCount == 1) {7    controller.enqueue('a');8    controller.enqueue('b');9    controller.enqueue('c');10  } else if (pullCount == 2) {11    assert_throws(new TypeError(), function() {12      controller.enqueue('d');13    }, 'enqueue() should throw a TypeError if the stream is closed');14  } else if (pullCount == 3) {15    assert_throws(new TypeError(), function() {16      controller.close();17    }, 'close() should throw a TypeError if the stream is closed');18  } else if (pullCount == 4) {19    assert_throws(new TypeError(), function() {20      controller.error();21    }, 'error() should throw a TypeError if the stream is closed');22  } else {23    assert_unreached('The pull() method should not be called more than 4 times');24  }25};26var cancelCount = 0;27var cancel = function() {28  cancelCount++;29  assert_equals(cancelCount, 1, 'cancel() should only be called once');30};31rs = new ReadableStream({32  start: function(c) {33    controller = c;34  },35});36rs.getReader().closed37  .then(function() {38    assert_equals(pullCount, 1, 'pull() should be called once');39    assert_equals(cancelCount, 1, 'cancel() should be called once');40  })41  .then($DONE, $DONE);

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