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How to use WritableStreamDefaultControllerError method in wpt

Best JavaScript code snippet using wpt

writable_stream_controller.ts

Source:writable_stream_controller.ts

...63    const { state } = this.controlledWritableStream;64    if (state !== "writable") {65      return;66    }67    WritableStreamDefaultControllerError(this, e);68  }69}70export function IsWritableStreamDefaultController<T>(71  x72): x is WritableStreamDefaultController<T> {73  return typeof x === "object" && x.hasOwnProperty("controlledWritableStream");74}75export function SetUpWritableStreamDefaultController<T>(params: {76  stream: WritableStream;77  controller: WritableStreamDefaultController<T>;78  startAlgorithm: StartAlgorithm;79  writeAlgorithm: WriteAlgorithm<T>;80  closeAlgorithm: CloseAlgorithm;81  abortAlgorithm: AbortAlgorithm;82  highWaterMark: number;83  sizeAlgorithm: SizeAlgorithm;84}) {85  const {86    stream,87    controller,88    startAlgorithm,89    writeAlgorithm,90    closeAlgorithm,91    abortAlgorithm,92    highWaterMark,93    sizeAlgorithm94  } = params;95  Assert(IsWritableStream(stream));96  Assert(stream.writableStreamController === void 0);97  controller.controlledWritableStream = stream;98  stream.writableStreamController = controller;99  ResetQueue(controller);100  controller.started = false;101  controller.strategySizeAlgorithm = sizeAlgorithm;102  controller.strategyHWM = highWaterMark;103  controller.writeAlgorithm = writeAlgorithm;104  controller.closeAlgorithm = closeAlgorithm;105  controller.abortAlgorithm = abortAlgorithm;106  const backpressure = WritableStreamDefaultControllerGetBackpressure(107    controller108  );109  WritableStreamUpdateBackpressure(stream, backpressure);110  Promise.resolve(startAlgorithm())111    .then(() => {112      Assert(stream.state === "writable" || stream.state === "erroring");113      controller.started = true;114      WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);115    })116    .catch(r => {117      Assert(stream.state === "writable" || stream.state === "erroring");118      controller.started = true;119      WritableStreamDealWithRejection(stream, r);120    });121}122export function SetUpWritableStreamDefaultControllerFromUnderlyingSink(123  stream: WritableStream,124  underlyingSink,125  highWaterMark: number,126  sizeAlgorithm: SizeAlgorithm127) {128  Assert(underlyingSink !== void 0);129  const controller = createWritableStreamDefaultController();130  const startAlgorithm = () =>131    InvokeOrNoop(underlyingSink, "start", controller);132  const writeAlgorithm = CreateAlgorithmFromUnderlyingMethod(133    underlyingSink,134    "write",135    1,136    controller137  );138  const closeAlgorithm = CreateAlgorithmFromUnderlyingMethod(139    underlyingSink,140    "close",141    0142  );143  const abortAlgorithm = CreateAlgorithmFromUnderlyingMethod(144    underlyingSink,145    "abort",146    1147  );148  SetUpWritableStreamDefaultController({149    stream,150    controller,151    startAlgorithm,152    writeAlgorithm,153    closeAlgorithm,154    abortAlgorithm,155    highWaterMark,156    sizeAlgorithm157  });158}159export function WritableStreamDefaultControllerClearAlgorithms<T>(160  controller: WritableStreamDefaultController<T>161) {162  controller.writeAlgorithm = void 0;163  controller.closeAlgorithm = void 0;164  controller.abortAlgorithm = void 0;165  controller.strategySizeAlgorithm = void 0;166}167export function WritableStreamDefaultControllerClose<T>(168  controller: WritableStreamDefaultController<T>169) {170  EnqueueValueWithSize(controller, "close", 0);171  WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);172}173export function WritableStreamDefaultControllerGetChunkSize<T>(174  controller: WritableStreamDefaultController<T>,175  chunk176): number {177  try {178    return controller.strategySizeAlgorithm(chunk);179  } catch (e) {180    WritableStreamDefaultControllerErrorIfNeeded(controller, e);181    return 1;182  }183}184export function WritableStreamDefaultControllerGetDesiredSize<T>(185  controller: WritableStreamDefaultController<T>186): number {187  return controller.strategyHWM - controller.queueTotalSize;188}189export function WritableStreamDefaultControllerWrite<T>(190  controller: WritableStreamDefaultController<T>,191  chunk,192  chunkSize: number193) {194  const writeRecord = { chunk };195  try {196    EnqueueValueWithSize(controller, writeRecord, chunkSize);197  } catch (e) {198    WritableStreamDefaultControllerErrorIfNeeded(controller, e);199    return;200  }201  const stream = controller.controlledWritableStream;202  if (203    !WritableStreamCloseQueuedOrInFlight(stream) &&204    stream.state === "writable"205  ) {206    const backpressure = WritableStreamDefaultControllerGetBackpressure(207      controller208    );209    WritableStreamUpdateBackpressure(stream, backpressure);210  }211  WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);212}213export function WritableStreamDefaultControllerAdvanceQueueIfNeeded<T>(214  controller: WritableStreamDefaultController<T>215) {216  const stream = controller.controlledWritableStream;217  if (!controller.started) {218    return;219  }220  if (stream.inFlightWriteRequest !== void 0) {221    return;222  }223  const { state } = stream;224  if (state === "closed" || state === "errored") {225    return;226  }227  if (state === "erroring") {228    WritableStreamFinishErroring(stream);229    return;230  }231  if (controller.queue.length === 0) {232    return;233  }234  const writeRecord = PeekQueueValue(controller);235  if (writeRecord === "close") {236    WritableStreamDefaultControllerProcessClose(controller);237  } else {238    WritableStreamDefaultControllerProcessWrite(controller, writeRecord.chunk);239  }240}241export function WritableStreamDefaultControllerErrorIfNeeded<T>(242  controller: WritableStreamDefaultController<T>,243  error244) {245  if (controller.controlledWritableStream.state === "writable") {246    WritableStreamDefaultControllerError(controller, error);247  }248}249export function WritableStreamDefaultControllerProcessClose<T>(250  controller: WritableStreamDefaultController<T>251) {252  const stream = controller.controlledWritableStream;253  WritableStreamMarkCloseRequestInFlight(stream);254  DequeueValue(controller);255  Assert(controller.queue.length === 0);256  const sinkClosePromise = controller.closeAlgorithm();257  WritableStreamDefaultControllerClearAlgorithms(controller);258  sinkClosePromise259    .then(() => {260      WritableStreamFinishInFlightClose(stream);...

writable_stream_default_controller.ts

Source:writable_stream_default_controller.ts

1// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.2import {3  AbortAlgorithm,4  CloseAlgorithm,5  isWritableStreamDefaultController,6  Pair,7  resetQueue,8  setFunctionName,9  SizeAlgorithm,10  WriteAlgorithm,11  writableStreamDefaultControllerClearAlgorithms,12  writableStreamDefaultControllerError,13} from "./internals.ts";14import * as sym from "./symbols.ts";15import { WritableStreamImpl } from "./writable_stream.ts";16import { customInspect } from "../console.ts";17export class WritableStreamDefaultControllerImpl<W>18  implements WritableStreamDefaultController {19  [sym.abortAlgorithm]: AbortAlgorithm;20  [sym.closeAlgorithm]: CloseAlgorithm;21  [sym.controlledWritableStream]: WritableStreamImpl;22  [sym.queue]: Array<Pair<{ chunk: W } | "close">>;23  [sym.queueTotalSize]: number;24  [sym.started]: boolean;25  [sym.strategyHWM]: number;26  [sym.strategySizeAlgorithm]: SizeAlgorithm<W>;27  [sym.writeAlgorithm]: WriteAlgorithm<W>;28  private constructor() {29    throw new TypeError(30      "WritableStreamDefaultController's constructor cannot be called."31    );32  }33  // eslint-disable-next-line @typescript-eslint/no-explicit-any34  error(e: any): void {35    if (!isWritableStreamDefaultController(this)) {36      throw new TypeError("Invalid WritableStreamDefaultController.");37    }38    const state = this[sym.controlledWritableStream][sym.state];39    if (state !== "writable") {40      return;41    }42    writableStreamDefaultControllerError(this, e);43  }44  // eslint-disable-next-line @typescript-eslint/no-explicit-any45  [sym.abortSteps](reason: any): PromiseLike<void> {46    const result = this[sym.abortAlgorithm](reason);47    writableStreamDefaultControllerClearAlgorithms(this);48    return result;49  }50  [sym.errorSteps](): void {51    resetQueue(this);52  }53  [customInspect](): string {54    return `${this.constructor.name} { }`;55  }56}57setFunctionName(58  WritableStreamDefaultControllerImpl,59  "WritableStreamDefaultController"...

Using AI Code Generation

1'use strict';2const { WritableStream, CountQueuingStrategy } = require('stream/web');3const ws = new WritableStream({4  write() {}5}, new CountQueuingStrategy({ highWaterMark: 0 }));6const writer = ws.getWriter();7const controller = writer[kState].controller;8controller.error(new Error('error'));9assert_equals(writer.desiredSize, null);10assert_equals(writer.ready, Promise.reject(new Error('error')));11assert_equals(writer[kState].state, 'errored');12assert_equals(writer[kState].storedError, new Error('error'));13assert_equals(controller[kState].state, 'errored');14assert_equals(controller[kState].storedError, new Error('error'));15'use strict';16const { WritableStream, CountQueuingStrategy } = require('stream/web');17const ws = new WritableStream({18  write() {}19}, new CountQueuingStrategy({ highWaterMark: 0 }));20const writer = ws.getWriter();21const controller = writer[kState].controller;22assert_equals(controller.desiredSize, 0);23'use strict';24const { WritableStream, CountQueuingStrategy } = require('stream/web');25const ws = new WritableStream({26  write() {}27}, new CountQueuingStrategy({ highWaterMark: 0 }));28const writer = ws.getWriter();29const controller = writer[kState].controller;30controller.write('a');31assert_equals(writer.desiredSize, -1);32assert_equals(writer.ready, Promise.resolve());33assert_equals(writer[kState].state, 'writable');34assert_equals(writer[kState].storedError, undefined);35assert_equals(controller[kState].state, 'writable');36assert_equals(controller[kState].storedError, undefined);37'use strict';38const { WritableStream, CountQueuingStrategy } = require('stream/web');39const ws = new WritableStream({40  write() {}41}, new CountQueuingStrategy({ highWaterMark: 0 }));42const writer = ws.getWriter();43const controller = writer[kState].controller;44controller.write('a');45assert_equals(writer.desiredSize, -1);46assert_equals(writer.ready, Promise.resolve());

Using AI Code Generation

1'use strict';2const { WritableStream, CountQueuingStrategy } = require('stream/web');3const ws = new WritableStream({4  write() {5    return new Promise(() => {});6  }7}, new CountQueuingStrategy({ highWaterMark: 0 }));8const writer = ws.getWriter();9writer.write('a');10writer.write('b');11writer.write('c');12writer.close();13writer.closed.then(() => console.log('closed'));14writer.ready.catch(() => console.log('failed'));15setTimeout(() => {16  writer.releaseLock();17  ws.abort(new Error('something went wrong'));18}, 1000);19if (!WritableStreamCloseQueuedOrInFlight(stream) && stream.[[backpressure]]) {20  return PromiseReject(new TypeError('The stream is not in a state that permits writing'));21}22if (!WritableStreamCloseQueuedOrInFlight(stream) && stream.[[backpressure]] && stream.[[state]] !== 'errored') {23  return PromiseReject(new TypeError('The stream is not in a state that permits writing'));24}

Using AI Code Generation

1const { WritableStream, CountQueuingStrategy } = require('stream/web');2const { WritableStreamDefaultControllerError } = require('stream/web');3const ws = new WritableStream({4  start(c) {5    WritableStreamDefaultControllerError(c, new Error('This is an error'));6  }7});8ws.getWriter().write('a').catch(e => console.log(e.message));9WritableStreamDefaultControllerError(controller, error)10const { WritableStream, CountQueuingStrategy } = require('stream/web');11const { WritableStreamDefaultControllerError } = require('stream/web');12const ws = new WritableStream({13  start(c) {14    WritableStreamDefaultControllerError(c, new Error('This is an error'));15  }16});17ws.getWriter().write('a').catch(e => console.log(e.message));18WritableStreamDefaultController.error()19WritableStreamDefaultController.close()20WritableStreamDefaultController.getDesiredSize()21WritableStreamDefaultController.enqueue()22WritableStreamDefaultController.terminate()23WritableStreamDefaultWriter.write()24WritableStreamDefaultWriter.close()25WritableStreamDefaultWriter.abort()26WritableStreamDefaultWriter.releaseLock()27WritableStream.abort()28WritableStream.close()29WritableStream.getWriter()

Using AI Code Generation

1'use strict';2const assert = require('assert');3const {4} = require('stream/web');5const writable = new WritableStream({6  write() {7  }8});9const writer = writable.getWriter();10const controller = writer[kState].controller;11assert.throws(() => {12  WritableStreamDefaultControllerError(controller, new Error('boom'));13}, {14});15assert.strictEqual(writer.closed, undefined);16'use strict';17const assert = require('assert');18const {19} = require('stream/web');20const writable = new WritableStream({21  write() {22  }23});24const writer = writable.getWriter();25const { controller } = writer[kState];26assert.throws(() => {27  controller.error(new Error('boom'));28}, {29});30assert.strictEqual(writer.closed, undefined);

Using AI Code Generation

1const { WritableStream, WritableStreamDefaultControllerError } = require('stream/web');2const { WritableStreamDefaultController } = require('internal/webstreams/writablestream');3const { WritableStreamDefaultWriter } = require('internal/webstreams/writablestream');4const { ReadableStream, ReadableStreamDefaultReader } = require('stream/web');5const { ReadableStreamDefaultController } = require('internal/webstreams/readablestream');6const { ReadableByteStreamController } = require('internal/webstreams/readablestream');7const assert = require('assert');8const { isPromise } = require('internal/webstreams/util');9const { MessageChannel } = require('worker_threads');10const { port1, port2 } = new MessageChannel();11const readableStream = new ReadableStream({12  start(c) {13    c.enqueue('a');14    c.enqueue('b');15    c.enqueue('c');16  }17});18const reader = readableStream.getReader();19const writer = new WritableStreamDefaultWriter(20  new WritableStream({21    write() {22      return new Promise((resolve) => setTimeout(resolve, 100));23    },24    abort() {25      return new Promise((resolve) => setTimeout(resolve, 100));26    }27  })28);29const { port1, port2 } = new MessageChannel();30let startCallCount = 0;31let writeCallCount = 0;32let abortCallCount = 0;33let closeCallCount = 0;34const ws = new WritableStream({35  start(c) {36    startCallCount++;37    c.error(error1);38  },39  write() {40    writeCallCount++;41  },42  abort() {43    abortCallCount++;44  },45  close() {46    closeCallCount++;47  }48});49const writer = ws.getWriter();50writer.write('a');51writer.write('b');52writer.close();53writer.closed.then(() => port1.postMessage('done'));54port2.on('message', (message) => {55  assert.strictEqual(startCallCount, 1);56  assert.strictEqual(writeCallCount, 0);57  assert.strictEqual(abortCallCount, 0);58  assert.strictEqual(closeCallCount, 0);59  assert.strictEqual(message, 'done');60});61assert.throws(() => new WritableStreamDefaultController(), {62});63assert.throws(() => new WritableStreamDefaultController({}), {

Using AI Code Generation

1var ws = new WritableStream({2  write(chunk) {3    return new Promise((resolve, reject) => {4      reject('Error!');5    });6  }7});8var writer = ws.getWriter();9writer.write('a')10  .then(() => {11    writer.write('b')12      .then(() => {13        console.log('write success');14      })15      .catch((error) => {16        console.log('write failure');17      });18  })19  .catch((error) => {20    console.log('write failure');21  });22var ws = new WritableStream({23  write(chunk) {24    return new Promise((resolve, reject) => {25      reject('Error!');26    });27  }28});29var writer = ws.getWriter();30writer.write('a')31  .then(() => {32    writer.write('b')33      .then(() => {34        console.log('write success');35      })36      .catch((error) => {37        console.log('write failure');38      });39  })40  .catch((error) => {41    console.log('write failure');42  });43var ws = new WritableStream({44  write(chunk) {45    return new Promise((resolve, reject) => {46      reject('Error!');47    });48  }49});50var writer = ws.getWriter();51writer.write('a')52  .then(() => {53    writer.write('b')54      .then(() => {55        console.log('write success');56      })57      .catch((error) => {58        console.log('write failure');59      });60  })61  .catch((error) => {62    console.log('write failure');63  });64var ws = new WritableStream({65  write(chunk) {66    return new Promise((resolve, reject) => {67      reject('Error!');68    });69  }70});71var writer = ws.getWriter();72writer.write('a')73  .then(() => {74    writer.write('b')75      .then(() => {76        console.log('write success');77      })78      .catch((error) => {79        console.log('write failure');80      });81  })82  .catch((error) => {83    console.log('write failure');84  });

Using AI Code Generation

1const ws = new WritableStream({2  write() {3    throw new Error('a write error');4  }5});6const writer = ws.getWriter();7writer.write('a');8writer.releaseLock();9const fakeUnderlyingSink = Object.create(Object.prototype, {10  start: {11    value: () => Promise.resolve()12  },13  write: {14    value: () => {15      throw new Error('a write error');16    }17  },18  close: {19    value: () => Promise.resolve()20  },21  abort: {22    value: () => Promise.resolve()23  }24});25const fakeWs = new WritableStream(fakeUnderlyingSink);26const fakeWriter = fakeWs.getWriter();27fakeWriter.write('a');28fakeWriter.releaseLock();29WritableStream.prototype._start = function WritableStream_start() {30  const controller = this._writableStreamController;31  const startResult = controller._startAlgorithm();32  const startPromise = Promise.resolve(startResult);33  return startPromise.then(() => {34    controller._started = true;35    WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);36  });37};38WritableStream.prototype._write = function WritableStream_write(chunk) {39  const controller = this._writableStreamController;40  const state = this._state;41  if (state === 'errored') {42    return Promise.reject(controller._storedError);43  }44  if (WritableStreamCloseQueuedOrInFlight(this) || state !== 'writable') {45    return Promise.resolve(undefined);46  }47  const writeRecord = { chunk };48  try {49    controller._writableStreamController._writeAlgorithm(writeRecord.chunk);50  } catch (e) {51    WritableStreamDefaultControllerErrorIfNeeded(controller, e);52    return Promise.reject(e);53  }54  const promise = new Promise((resolve, reject) => {55    writeRecord._resolve = resolve;56    writeRecord._reject = reject;57  });58  controller._pendingWriteRequest = writeRecord;59  return promise;60};61WritableStreamDefaultController.prototype.error = function WritableStreamDefaultControllerError(e) {62  if (this._controlledWritableStream._state !== 'writable') {63    return;64  }65  WritableStreamDefaultControllerErrorIfNeeded(this, e);66};

Using AI Code Generation

1var ws = new WritableStream({2  write() {3    return new Promise((resolve, reject) => {4      setTimeout(() => {5        reject(new Error('a'));6        resolve();7      }, 100);8    });9  }10});11var writer = ws.getWriter();12writer.write('a').then(() => {13  writer.write('b').then(() => {14    writer.write('c').then(() => {15      writer.write('d').then(() => {16        writer.write('e').then(() => {17          writer.write('f').then(() => {18            writer.write('g').then(() => {19              writer.write('h');20            });21          });22        });23      });24    });25  });26});27writer.closed.catch(e => {28  console.log(e);29});

Using AI Code Generation

1var writer = writable.getWriter();2var startPromise = writer.closed;3writer.write('a');4writer.write('b');5writer.write('c');6writer.close();7startPromise.then(() => {8    writer.write('d');9    writer.close();10    writer.releaseLock();11}).catch(() => {12    writer.releaseLock();13});14promise_test(() => {15  const ws = new WritableStream({16    start(c) {17      c.error(error1);18    }19  });20  return promise_rejects(t, error1, ws.abort(), 'abort() should reject with the first error');21}, 'abort() should reject with the first error');22promise_test(() => {23  const ws = new WritableStream({24    start(c) {25      c.error(error1);26    }27  });28  return promise_rejects(t, error1, ws.getWriter().write('a'), 'write() should reject with the first error');29}, 'write() should reject with the first error');30promise_test(() => {31  const ws = new WritableStream({32    start(c) {33      c.error(error1);34    }35  });36  return promise_rejects(t, error1, ws.abort(), 'abort() should reject with the first error');37}, 'abort() should reject with the first error');38promise_test(() => {39  const ws = new WritableStream({40    start(c) {41      c.error(error1);42    }43  });44  return promise_rejects(t, error1, ws.getWriter().write('a'), 'write() should reject with the first error');45}, 'write() should reject with the first error');46promise_test(() => {47  const ws = new WritableStream({48    start(c) {

Using AI Code Generation

1const ws = new WritableStream();2const writer = ws.getWriter();3const controller = writer.desiredSize;4writer.close();5writer.closed.then(() => {6});7const ws = new WritableStream();8const writer = ws.getWriter();9writer.close();10writer.closed.then(() => {11});12const ws = new WritableStream();13const writer = ws.getWriter();14writer.close();15writer.closed.then(() => {16});17const ws = new WritableStream();18const writer = ws.getWriter();19writer.close();20writer.closed.then(() => {21});22const ws = new WritableStream();23const writer = ws.getWriter();24writer.close();25writer.closed.then(() => {26});27const ws = new WritableStream();28const writer = ws.getWriter();29writer.close();30writer.closed.then(() => {31});32const ws = new WritableStream();33const writer = ws.getWriter();34writer.close();35writer.closed.then(() => {36});37const ws = new WritableStream();38const writer = ws.getWriter();39writer.close();40writer.closed.then(() => {41});42const ws = new WritableStream();43const writer = ws.getWriter();44writer.close();45writer.closed.then(() => {46});47const ws = new WritableStream();48const writer = ws.getWriter();49writer.close();50writer.closed.then(() => {

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