How to use WritableStreamDefaultControllerErrorIfNeeded method in wpt

Best JavaScript code snippet using wpt

transfer.js

Source:transfer.js

1'use strict';2const {3  ObjectDefineProperties,4  PromiseResolve,5  ReflectConstruct,6} = primordials;7const {8  kState,9  setPromiseHandled,10} = require('internal/webstreams/util');11const {12  DOMException,13} = internalBinding('messaging');14const {15  ReadableStream,16  readableStreamDefaultControllerEnqueue,17  readableStreamDefaultControllerClose,18  readableStreamDefaultControllerError,19  readableStreamPipeTo,20} = require('internal/webstreams/readablestream');21const {22  WritableStream,23  writableStreamDefaultControllerErrorIfNeeded,24} = require('internal/webstreams/writablestream');25const {26  createDeferredPromise,27} = require('internal/util');28const assert = require('internal/assert');29const {30  makeTransferable,31  kClone,32  kDeserialize,33} = require('internal/worker/js_transferable');34// This class is a bit of a hack. The Node.js implementation of35// DOMException is not transferable/cloneable. This provides us36// with a variant that is. Unfortunately, it means playing around37// a bit with the message, name, and code properties and the38// prototype. We can revisit this if DOMException is ever made39// properly cloneable.40class CloneableDOMException extends DOMException {41  constructor(message, name) {42    super(message, name);43    this[kDeserialize]({44      message: this.message,45      name: this.name,46      code: this.code,47    });48    // eslint-disable-next-line no-constructor-return49    return makeTransferable(this);50  }51  [kClone]() {52    return {53      data: {54        message: this.message,55        name: this.name,56        code: this.code,57      },58      deserializeInfo:59        'internal/webstreams/transfer:InternalCloneableDOMException'60    };61  }62  [kDeserialize]({ message, name, code }) {63    ObjectDefineProperties(this, {64      message: {65        configurable: true,66        enumerable: true,67        get() { return message; },68      },69      name: {70        configurable: true,71        enumerable: true,72        get() { return name; },73      },74      code: {75        configurable: true,76        enumerable: true,77        get() { return code; },78      },79    });80  }81}82function InternalCloneableDOMException() {83  return makeTransferable(84    ReflectConstruct(85      CloneableDOMException,86      [],87      DOMException));88}89InternalCloneableDOMException[kDeserialize] = () => {};90class CrossRealmTransformReadableSource {91  constructor(port) {92    this[kState] = {93      port,94      controller: undefined,95    };96    port.onmessage = ({ data }) => {97      const {98        controller,99      } = this[kState];100      const {101        type,102        value,103      } = data;104      switch (type) {105        case 'chunk':106          readableStreamDefaultControllerEnqueue(107            controller,108            value);109          break;110        case 'close':111          readableStreamDefaultControllerClose(controller);112          port.close();113          break;114        case 'error':115          readableStreamDefaultControllerError(controller, value);116          port.close();117          break;118      }119    };120    port.onmessageerror = () => {121      const error = new CloneableDOMException(122        'Internal transferred ReadableStream error',123        'DataCloneError');124      port.postMessage({ type: 'error', value: error });125      readableStreamDefaultControllerError(126        this[kState].controller,127        error);128      port.close();129    };130  }131  start(controller) {132    this[kState].controller = controller;133  }134  async pull() {135    this[kState].port.postMessage({ type: 'pull' });136  }137  async cancel(reason) {138    try {139      this[kState].port.postMessage({ type: 'error', value: reason });140    } catch (error) {141      if (error instanceof DOMException) {142        // eslint-disable-next-line no-ex-assign143        error = new CloneableDOMException(error.message, error.name);144      }145      this[kState].port.postMessage({ type: 'error', value: error });146      throw error;147    } finally {148      this[kState].port.close();149    }150  }151}152class CrossRealmTransformWritableSink {153  constructor(port) {154    this[kState] = {155      port,156      controller: undefined,157      backpressurePromise: createDeferredPromise(),158    };159    port.onmessage = ({ data }) => {160      assert(typeof data === 'object');161      const {162        type,163        value164      } = { ...data };165      assert(typeof type === 'string');166      switch (type) {167        case 'pull':168          if (this[kState].backpressurePromise !== undefined)169            this[kState].backpressurePromise.resolve?.();170          this[kState].backpressurePromise = undefined;171          break;172        case 'error':173          writableStreamDefaultControllerErrorIfNeeded(174            this[kState].controller,175            value);176          if (this[kState].backpressurePromise !== undefined)177            this[kState].backpressurePromise.resolve?.();178          this[kState].backpressurePromise = undefined;179          break;180      }181    };182    port.onmessageerror = () => {183      const error = new CloneableDOMException(184        'Internal transferred ReadableStream error',185        'DataCloneError');186      port.postMessage({ type: 'error', value: error });187      writableStreamDefaultControllerErrorIfNeeded(188        this[kState].controller,189        error);190      port.close();191    };192  }193  start(controller) {194    this[kState].controller = controller;195  }196  async write(chunk) {197    if (this[kState].backpressurePromise === undefined) {198      this[kState].backpressurePromise = {199        promise: PromiseResolve(),200        resolve: undefined,201        reject: undefined,202      };203    }204    await this[kState].backpressurePromise.promise;205    this[kState].backpressurePromise = createDeferredPromise();206    try {207      this[kState].port.postMessage({ type: 'chunk', value: chunk });208    } catch (error) {209      if (error instanceof DOMException) {210        // eslint-disable-next-line no-ex-assign211        error = new CloneableDOMException(error.message, error.name);212      }213      this[kState].port.postMessage({ type: 'error', value: error });214      this[kState].port.close();215      throw error;216    }217  }218  close() {219    this[kState].port.postMessage({ type: 'close' });220    this[kState].port.close();221  }222  abort(reason) {223    try {224      this[kState].port.postMessage({ type: 'error', value: reason });225    } catch (error) {226      if (error instanceof DOMException) {227        // eslint-disable-next-line no-ex-assign228        error = new CloneableDOMException(error.message, error.name);229      }230      this[kState].port.postMessage({ type: 'error', value: error });231      throw error;232    } finally {233      this[kState].port.close();234    }235  }236}237function newCrossRealmReadableStream(writable, port) {238  const readable =239    new ReadableStream(240      new CrossRealmTransformReadableSource(port));241  const promise =242    readableStreamPipeTo(readable, writable, false, false, false);243  setPromiseHandled(promise);244  return {245    readable,246    promise,247  };248}249function newCrossRealmWritableSink(readable, port) {250  const writable =251    new WritableStream(252      new CrossRealmTransformWritableSink(port));253  const promise = readableStreamPipeTo(readable, writable, false, false, false);254  setPromiseHandled(promise);255  return {256    writable,257    promise,258  };259}260module.exports = {261  newCrossRealmReadableStream,262  newCrossRealmWritableSink,263  CrossRealmTransformWritableSink,264  CrossRealmTransformReadableSource,265  CloneableDOMException,266  InternalCloneableDOMException,...

Using AI Code Generation

1import { WritableStreamDefaultControllerErrorIfNeeded } from 'streams/writable-streams/default-controller.mjs';2import { WritableStream } from 'streams/writable-streams/writable-stream.mjs';3import { WritableStreamDefaultWriter } from 'streams/writable-streams/writable-stream-default-writer.mjs';4import { WritableStreamDefaultController } from 'streams/writable-streams/writable-stream-default-controller.mjs';5const ws = new WritableStream({6  start(c) {7  }8});9const writer = new WritableStreamDefaultWriter(ws);10const controller = writer.desiredSize;11WritableStreamDefaultControllerErrorIfNeeded(controller, new RangeError('Hello'));12writer.close();13import { WritableStreamDefaultControllerError } from 'streams/writable-streams/writable-stream-default-controller.mjs';14export function WritableStreamDefaultControllerErrorIfNeeded(controller, e) {15  if (controller._started) {16    WritableStreamDefaultControllerError(controller, e);17  }18}19import { WritableStreamDefaultControllerErrorIfNeeded } from 'streams/writable-streams/default-controller.mjs';20import { WritableStream } from 'streams/writable-streams/writable-stream.mjs';21import { WritableStreamDefaultWriter } from 'streams/writable-streams/writable-stream-default-writer.mjs';22import { WritableStreamDefaultController } from 'streams/writable-streams/writable-stream-default-controller.mjs';23export function WritableStreamDefaultControllerError(controller, e) {24  const stream = controller._controlledWritableStream;25  WritableStreamDefaultControllerClearAlgorithms(controller);26  WritableStreamStartErroring(stream, e);27}28import { WritableStreamDefaultControllerErrorIfNeeded } from 'streams/writable-streams/default-controller.mjs';29import { WritableStream } from 'streams/writable-streams/writable-stream.mjs';30import { WritableStreamDefaultWriter } from 'streams/writable-streams/writable-stream-default-writer.mjs';31import { WritableStreamDefaultController } from 'streams/writable-streams/writable-stream-default-controller.mjs';32export function WritableStreamStartErroring(stream, reason) {33  const state = stream._state;34  if (state === 'writable') {

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    controller.enqueue("a");4    controller.close();5  }6});7var ws = new WritableStream({8  write(chunk) {9    return new Promise(resolve => {10      setTimeout(resolve, 200);11    });12  }13});14var writer = ws.getWriter();15writer.write("a");16writer.close();17var reader = rs.getReader();18reader.read().then(function(result) {19  assert_equals(result.value, "a", "read result");20  assert_false(result.done, "done");21  reader.releaseLock();22  writer.releaseLock();23  return delay(0);24}).then(function() {25  return delay(200);26}).then(function() {27  assert_equals(ws.state, "closed", "ws state");28  t.done();29}).catch(t.step_func(function(e) {30  assert_unreached(e);31}));32var rs = new ReadableStream({33  start(controller) {34    controller.enqueue("a");35    controller.close();36  }37});38var ws = new WritableStream({39  write(chunk) {40    return new Promise(resolve => {41      setTimeout(resolve, 200);42    });43  }44});45var writer = ws.getWriter();46writer.write("a");47writer.close();48var reader = rs.getReader();49reader.read().then(function(result) {50  assert_equals(result.value, "a", "read result");51  assert_false(result.done, "done");52  reader.releaseLock();53  writer.releaseLock();54  return delay(0);55}).then(function() {56  return delay(200);57}).then(function() {58  assert_equals(ws.state, "closed", "ws state");59  t.done();60}).catch(t.step_func(function(e) {61  assert_unreached(e);62}));63var rs = new ReadableStream({64  start(controller) {65    controller.enqueue("a");66    controller.close();67  }68});69var ws = new WritableStream({70  write(chunk) {71    return new Promise(resolve => {72      setTimeout(resolve, 200);73    });74  }75});76var writer = ws.getWriter();77writer.write("a");

Using AI Code Generation

1'use strict';2const stream = require('stream');3const assert = require('assert');4const readable = new stream.Readable({5  read() {}6});7readable.push('a');8readable.push('b');9readable.push('c');10readable.push(null);11const writable = new stream.Writable({12  write(chunk, encoding, callback) {13    callback(new Error('error'));14  }15});16readable.pipe(writable).on('error', common.mustCall((err) => {17  assert.strictEqual(err.message, 'error');18}));19'use strict';20const stream = require('stream');21const assert = require('assert');22const readable = new stream.Readable({23  read() {}24});25readable.push('a');26readable.push('b');27readable.push('c');28readable.push(null);29const writable = new stream.Writable({30  write(chunk, encoding, callback) {31    callback(new Error('error'));32  }33});34readable.pipe(writable).on('error', common.mustCall((err) => {35  assert.strictEqual(err.message, 'error');36}));37'use strict';38const stream = require('stream');39const assert = require('assert');40const readable = new stream.Readable({41  read() {}42});43readable.push('a');44readable.push('b');45readable.push('c');46readable.push(null);47const writable = new stream.Writable({48  write(chunk, encoding, callback) {49    callback(new Error('error'));50  }51});52readable.pipe(writable).on('error', common.mustCall((err) => {53  assert.strictEqual(err.message, 'error');54}));55'use strict';56const stream = require('stream');57const assert = require('assert');58const readable = new stream.Readable({59  read() {}60});61readable.push('a');62readable.push('b');63readable.push('c');64readable.push(null);65const writable = new stream.Writable({66  write(chunk, encoding, callback) {67    callback(new Error('error'));68  }69});70readable.pipe(writable).on('error', common.mustCall((err) => {71  assert.strictEqual(err.message, 'error');72}));

Using AI Code Generation

1 > LayoutTests/imported/w3c/web-platform-tests/streams/readable-streams/writable-streams/general.js:392> +test(() => {3> +  const ws = new WritableStream();4> +  const writer = ws.getWriter();5> +  writer.releaseLock();6> +  assert_throws(new TypeError(), () => writer.releaseLock());7> +}, 'releaseLock() on a released writer should throw a TypeError');8> +test(() => {9> +  const ws = new WritableStream();10> +  const writer = ws.getWriter();11> +  writer.releaseLock();12> +  assert_throws(new TypeError(), () => writer.write());13> +}, 'write() on a released writer should throw a TypeError');14> +test(() => {15> +  const ws = new WritableStream();16> +  const writer = ws.getWriter();17> +  writer.releaseLock();18> +  assert_throws(new TypeError(), () => writer.close());19> +}, 'close() on a released writer should throw a TypeError');20> +test(() => {21> +  const ws = new WritableStream();22> +  const writer = ws.getWriter();23> +  writer.releaseLock();24> +  assert_throws(new TypeError(), () => writer.abort());25> +}, 'abort() on a released writer should throw a TypeError');26> +test(() => {27> +  const ws = new WritableStream();28> +  const writer = ws.getWriter();29> +  writer.releaseLock();30> +  assert_throws(new TypeError(), () => writer.closed);31> +}, 'closed getter on a released writer should throw a TypeError');32> +test(() => {33> +  const ws = new WritableStream();34> +  const writer = ws.getWriter();35> +  writer.releaseLock();36> +  assert_throws(new TypeError(), () => writer.desiredSize);37> +}, 'desiredSize getter on a released writer should throw a TypeError');38> +test(() => {39> +  const ws = new WritableStream();40> +  const writer = ws.getWriter();41> +  writer.releaseLock();

Using AI Code Generation

1var WritableStream = require('stream').Writable;2var ws = new WritableStream({3  write: function(chunk, encoding, callback) {4    callback(new Error('error'));5  }6});

Using AI Code Generation

1import { WritableStreamDefaultControllerErrorIfNeeded } from2'./writable-stream.js';3export async function writeError(controller, error) {4  WritableStreamDefaultControllerErrorIfNeeded(controller, error);5}6export function WritableStreamDefaultControllerErrorIfNeeded(controller,7error) {8  if (controller._controlledWritableStream._state === 'writable') {9    WritableStreamDefaultControllerError(controller, error);10  }11}12export function WritableStreamDefaultControllerError(controller, error) {13  const stream = controller._controlledWritableStream;14  if (stream._state === 'writable') {15    WritableStreamStartErroring(stream, error);16  }17}18export function WritableStreamStartErroring(stream, reason) {19  stream._state = 'erroring';20  stream._storedError = reason;21  const writer = stream._writer;22  if (writer !== undefined) {23    WritableStreamDefaultWriterEnsureReadyPromiseRejectedWith(writer, reason,24    true);25  }26  if (!stream._pendingAbortRequest) {27    WritableStreamFinishErroring(stream);28  }29}30export function WritableStreamFinishErroring(stream) {31  stream._state = 'errored';32  stream._writableStreamController[ErrorSteps]();33  const storedError = stream._storedError;34  stream._writableStreamController[ErrorSteps] = () => {35    throw storedError;36  };37  const writer = stream._writer;38  if (writer !== undefined) {39    defaultWriterClosedPromiseReject(writer, storedError);40    writer._readyPromise = Promise.reject(storedError);41  }42}43export function defaultWriterClosedPromiseReject(writer, reason) {44  if (writer._closedPromiseState === 'pending') {45    defaultWriterClosedPromiseInitializeAsRejected(writer, reason);46  }47}48export function defaultWriterClosedPromiseInitializeAsRejected(writer, reason) {

Using AI Code Generation

1import { WritableStreamDefaultControllerErrorIfNeeded } from './aborting.js';2const controller = {3  _pendingAbortRequest: {4    _reject: () => {}5  }6};7WritableStreamDefaultControllerErrorIfNeeded(controller, new Error('test'));8import { WritableStreamDefaultControllerErrorIfNeeded } from './aborting.js';9const controller = {10  _pendingAbortRequest: {11    _reject: () => {}12  }13};14WritableStreamDefaultControllerErrorIfNeeded(controller, new Error('test'));15import { WritableStreamDefaultControllerErrorIfNeeded } from './aborting.js';16const controller = {17  _pendingAbortRequest: {18    _reject: () => {}19  }20};21WritableStreamDefaultControllerErrorIfNeeded(controller, new Error('test'));22import { WritableStreamDefaultControllerErrorIfNeeded } from './aborting.js';23const controller = {24  _pendingAbortRequest: {25    _reject: () => {}26  }27};28WritableStreamDefaultControllerErrorIfNeeded(controller, new Error('test'));29The controller object is the object you pass to the WritableStreamDefaultControllerErrorIfNeeded() function. So you need to create a controller object that has the

Using AI Code Generation

1> +    var controller = new WritableStreamDefaultController(stream); 2> +    const error = new Error('error'); 3>> +    var controller = new WritableStreamDefaultController(stream);4>> +    const error = new Error('error');5>> +    var controller = new WritableStreamDefaultController(stream);6>> +    const error = new Error('error');

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