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How to use TransformStreamCloseReadableInternal method in wpt

Best JavaScript code snippet using wpt

transform-stream.js

...13  }14  if (transformStream._readableClosed === true) {15    throw new TypeError('Readable side is already closed');16  }17  TransformStreamCloseReadableInternal(transformStream);18}19function TransformStreamEnqueueToReadable(transformStream, chunk) {20  // console.log('TransformStreamEnqueueToReadable()');21  if (transformStream._errored === true) {22    throw new TypeError('TransformStream is already errored');23  }24  if (transformStream._readableClosed === true) {25    throw new TypeError('Readable side is already closed');26  }27  // We throttle transformer.transform invocation based on the backpressure of the ReadableStream, but we still28  // accept TransformStreamEnqueueToReadable() calls.29  const controller = transformStream._readableController;30  try {31    ReadableStreamDefaultControllerEnqueue(controller, chunk);32  } catch (e) {33    // This happens when readableStrategy.size() throws.34    // The ReadableStream has already errored itself.35    transformStream._readableClosed = true;36    TransformStreamErrorIfNeeded(transformStream, e);37    throw transformStream._storedError;38  }39  const desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);40  const maybeBackpressure = desiredSize <= 0;41  if (maybeBackpressure === true && transformStream._backpressure === false) {42    // This allows pull() again. When desiredSize is 0, it's possible that a pull() will happen immediately (but43    // asynchronously) after this because of pending read()s and set _backpressure back to false.44    //45    // If pull() could be called from inside enqueue(), then this logic would be wrong. This cannot happen46    // because there is always a promise pending from start() or pull() when _backpressure is false.47    TransformStreamSetBackpressure(transformStream, true);48  }49}50function TransformStreamError(transformStream, e) {51  if (transformStream._errored === true) {52    throw new TypeError('TransformStream is already errored');53  }54  TransformStreamErrorInternal(transformStream, e);55}56// Abstract operations.57function TransformStreamCloseReadableInternal(transformStream) {58  assert(transformStream._errored === false);59  assert(transformStream._readableClosed === false);60  try {61    ReadableStreamDefaultControllerClose(transformStream._readableController);62  } catch (e) {63    assert(false);64  }65  transformStream._readableClosed = true;66}67function TransformStreamErrorIfNeeded(transformStream, e) {68  if (transformStream._errored === false) {69    TransformStreamErrorInternal(transformStream, e);70  }71}72function TransformStreamErrorInternal(transformStream, e) {73  // console.log('TransformStreamErrorInternal()');74  assert(transformStream._errored === false);75  transformStream._errored = true;76  transformStream._storedError = e;77  if (transformStream._writableDone === false) {78    WritableStreamDefaultControllerError(transformStream._writableController, e);79  }80  if (transformStream._readableClosed === false) {81    ReadableStreamDefaultControllerError(transformStream._readableController, e);82  }83}84// Used for preventing the next write() call on TransformStreamSink until there85// is no longer backpressure.86function TransformStreamReadableReadyPromise(transformStream) {87  assert(transformStream._backpressureChangePromise !== undefined,88         '_backpressureChangePromise should have been initialized');89  if (transformStream._backpressure === false) {90    return Promise.resolve();91  }92  assert(transformStream._backpressure === true, '_backpressure should have been initialized');93  return transformStream._backpressureChangePromise;94}95function TransformStreamSetBackpressure(transformStream, backpressure) {96  // console.log(`TransformStreamSetBackpressure(${backpressure})`);97  // Passes also when called during construction.98  assert(transformStream._backpressure !== backpressure,99         'TransformStreamSetBackpressure() should be called only when backpressure is changed');100  if (transformStream._backpressureChangePromise !== undefined) {101    // The fulfillment value is just for a sanity check.102    transformStream._backpressureChangePromise_resolve(backpressure);103  }104  transformStream._backpressureChangePromise = new Promise(resolve => {105    transformStream._backpressureChangePromise_resolve = resolve;106  });107  transformStream._backpressureChangePromise.then(resolution => {108    assert(resolution !== backpressure,109           '_backpressureChangePromise should be fulfilled only when backpressure is changed');110  });111  transformStream._backpressure = backpressure;112}113function TransformStreamDefaultTransform(chunk, transformStreamController) {114  const transformStream = transformStreamController._controlledTransformStream;115  TransformStreamEnqueueToReadable(transformStream, chunk);116  return Promise.resolve();117}118function TransformStreamTransform(transformStream, chunk) {119  // console.log('TransformStreamTransform()');120  assert(transformStream._errored === false);121  assert(transformStream._transforming === false);122  assert(transformStream._backpressure === false);123  transformStream._transforming = true;124  const transformer = transformStream._transformer;125  const controller = transformStream._transformStreamController;126  const transformPromise = PromiseInvokeOrPerformFallback(transformer, 'transform', [chunk, controller],127                             TransformStreamDefaultTransform, [chunk, controller]);128  return transformPromise.then(129    () => {130      transformStream._transforming = false;131      return TransformStreamReadableReadyPromise(transformStream);132    },133    e => {134      TransformStreamErrorIfNeeded(transformStream, e);135      return Promise.reject(e);136    });137}138function IsTransformStreamDefaultController(x) {139  if (!typeIsObject(x)) {140    return false;141  }142  if (!Object.prototype.hasOwnProperty.call(x, '_controlledTransformStream')) {143    return false;144  }145  return true;146}147function IsTransformStream(x) {148  if (!typeIsObject(x)) {149    return false;150  }151  if (!Object.prototype.hasOwnProperty.call(x, '_transformStreamController')) {152    return false;153  }154  return true;155}156class TransformStreamSink {157  constructor(transformStream, startPromise) {158    this._transformStream = transformStream;159    this._startPromise = startPromise;160  }161  start(c) {162    const transformStream = this._transformStream;163    transformStream._writableController = c;164    return this._startPromise.then(() => TransformStreamReadableReadyPromise(transformStream));165  }166  write(chunk) {167    // console.log('TransformStreamSink.write()');168    const transformStream = this._transformStream;169    return TransformStreamTransform(transformStream, chunk);170  }171  abort() {172    const transformStream = this._transformStream;173    transformStream._writableDone = true;174    TransformStreamErrorInternal(transformStream, new TypeError('Writable side aborted'));175  }176  close() {177    // console.log('TransformStreamSink.close()');178    const transformStream = this._transformStream;179    assert(transformStream._transforming === false);180    transformStream._writableDone = true;181    const flushPromise = PromiseInvokeOrNoop(transformStream._transformer,182                         'flush', [transformStream._transformStreamController]);183    // Return a promise that is fulfilled with undefined on success.184    return flushPromise.then(() => {185      if (transformStream._errored === true) {186        return Promise.reject(transformStream._storedError);187      }188      if (transformStream._readableClosed === false) {189        TransformStreamCloseReadableInternal(transformStream);190      }191      return Promise.resolve();192    }).catch(r => {193      TransformStreamErrorIfNeeded(transformStream, r);194      return Promise.reject(transformStream._storedError);195    });196  }197}198class TransformStreamSource {199  constructor(transformStream, startPromise) {200    this._transformStream = transformStream;201    this._startPromise = startPromise;202  }203  start(c) {...

transform-stream-polyfill.js

Source: transform-stream-polyfill.js

...13  }14  if (transformStream._readableClosed === true) {15    throw new TypeError('Readable side is already closed');16  }17  TransformStreamCloseReadableInternal(transformStream);18}19function TransformStreamEnqueueToReadable(transformStream, chunk) {20  if (transformStream._errored === true) {21    throw new TypeError('TransformStream is already errored');22  }23  if (transformStream._readableClosed === true) {24    throw new TypeError('Readable side is already closed');25  }26  // We throttle transformer.transform invocation based on the backpressure of the ReadableStream, but we still27  // accept TransformStreamEnqueueToReadable() calls.28  const controller = transformStream._readableController;29  try {30    ReadableStreamDefaultControllerEnqueue(controller, chunk);31  } catch (e) {32    // This happens when readableStrategy.size() throws.33    // The ReadableStream has already errored itself.34    transformStream._readableClosed = true;35    TransformStreamErrorIfNeeded(transformStream, e);36    throw transformStream._storedError;37  }38  const desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);39  const maybeBackpressure = desiredSize <= 0;40  if (maybeBackpressure === true && transformStream._backpressure === false) {41    // This allows pull() again. When desiredSize is 0, it's possible that a pull() will happen immediately (but42    // asynchronously) after this because of pending read()s and set _backpressure back to false.43    //44    // If pull() could be called from inside enqueue(), then this logic would be wrong. This cannot happen45    // because there is always a promise pending from start() or pull() when _backpressure is false.46    TransformStreamSetBackpressure(transformStream, true);47  }48}49function TransformStreamError(transformStream, e) {50  if (transformStream._errored === true) {51    throw new TypeError('TransformStream is already errored');52  }53  TransformStreamErrorInternal(transformStream, e);54}55// Abstract operations.56function TransformStreamCloseReadableInternal(transformStream) {57  ReadableStreamDefaultControllerClose(transformStream._readableController);58  transformStream._readableClosed = true;59}60function TransformStreamErrorIfNeeded(transformStream, e) {61  if (transformStream._errored === false) {62    TransformStreamErrorInternal(transformStream, e);63  }64}65function TransformStreamErrorInternal(transformStream, e) {66  transformStream._errored = true;67  transformStream._storedError = e;68  if (transformStream._writableDone === false) {69    WritableStreamDefaultControllerError(transformStream._writableController, e);70  }71  if (transformStream._readableClosed === false) {72    ReadableStreamDefaultControllerError(transformStream._readableController, e);73  }74}75// Used for preventing the next write() call on TransformStreamSink until there76// is no longer backpressure.77function TransformStreamReadableReadyPromise(transformStream) {78  if (transformStream._backpressure === false) {79    return Promise.resolve();80  }81  return transformStream._backpressureChangePromise;82}83function TransformStreamSetBackpressure(transformStream, backpressure) {84  // Passes also when called during construction.85  if (transformStream._backpressureChangePromise !== undefined) {86    // The fulfillment value is just for a sanity check.87    transformStream._backpressureChangePromise_resolve(backpressure);88  }89  transformStream._backpressureChangePromise = new Promise(resolve => {90    transformStream._backpressureChangePromise_resolve = resolve;91  });92  transformStream._backpressureChangePromise.then(resolution => {93  });94  transformStream._backpressure = backpressure;95}96function TransformStreamDefaultTransform(chunk, transformStreamController) {97  const transformStream = transformStreamController._controlledTransformStream;98  TransformStreamEnqueueToReadable(transformStream, chunk);99  return Promise.resolve();100}101function TransformStreamTransform(transformStream, chunk) {102  transformStream._transforming = true;103  const transformer = transformStream._transformer;104  const controller = transformStream._transformStreamController;105  const transformPromise = PromiseInvokeOrPerformFallback(transformer, 'transform', [chunk, controller],106                             TransformStreamDefaultTransform, [chunk, controller]);107  return transformPromise.then(108    () => {109      transformStream._transforming = false;110      return TransformStreamReadableReadyPromise(transformStream);111    },112    e => {113      TransformStreamErrorIfNeeded(transformStream, e);114      return Promise.reject(e);115    });116}117function IsTransformStreamDefaultController(x) {118  if (!typeIsObject(x)) {119    return false;120  }121  if (!Object.prototype.hasOwnProperty.call(x, '_controlledTransformStream')) {122    return false;123  }124  return true;125}126function IsTransformStream(x) {127  if (!typeIsObject(x)) {128    return false;129  }130  if (!Object.prototype.hasOwnProperty.call(x, '_transformStreamController')) {131    return false;132  }133  return true;134}135class TransformStreamSink {136  constructor(transformStream, startPromise) {137    this._transformStream = transformStream;138    this._startPromise = startPromise;139  }140  start(c) {141    const transformStream = this._transformStream;142    transformStream._writableController = c;143    return this._startPromise.then(() => TransformStreamReadableReadyPromise(transformStream));144  }145  write(chunk) {146    const transformStream = this._transformStream;147    return TransformStreamTransform(transformStream, chunk);148  }149  abort() {150    const transformStream = this._transformStream;151    transformStream._writableDone = true;152    TransformStreamErrorInternal(transformStream, new TypeError('Writable side aborted'));153  }154  close() {155    const transformStream = this._transformStream;156    transformStream._writableDone = true;157    const flushPromise = PromiseInvokeOrNoop(transformStream._transformer,158                         'flush', [transformStream._transformStreamController]);159    // Return a promise that is fulfilled with undefined on success.160    return flushPromise.then(() => {161      if (transformStream._errored === true) {162        return Promise.reject(transformStream._storedError);163      }164      if (transformStream._readableClosed === false) {165        TransformStreamCloseReadableInternal(transformStream);166      }167      return Promise.resolve();168    }).catch(r => {169      TransformStreamErrorIfNeeded(transformStream, r);170      return Promise.reject(transformStream._storedError);171    });172  }173}174class TransformStreamSource {175  constructor(transformStream, startPromise) {176    this._transformStream = transformStream;177    this._startPromise = startPromise;178  }179  start(c) {...

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 ts = new TransformStream();10var writer = ts.writable.getWriter();11var reader = ts.readable.getReader();12writer.write("x");13writer.write("y");14writer.write("z");15writer.close();16reader.read().then(result => assert_equals(result.value, "x", "first chunk should be first written chunk"));17reader.read().then(result => assert_equals(result.value, "y", "second chunk should be second written chunk"));18reader.read().then(result => assert_equals(result.value, "z", "third chunk should be third written chunk"));19reader.read().then(result => assert_equals(result.value, "a", "fourth chunk should be first readable chunk"));20reader.read().then(result => assert_equals(result.value, "b", "fifth chunk should be second readable chunk"));21reader.read().then(result => assert_equals(result.value, "c", "sixth chunk should be third readable chunk"));22reader.read().then(result => assert_equals(result.done, true, "stream should be closed"));23var rs = new ReadableStream({24  start(controller) {25    controller.enqueue("a");26    controller.enqueue("b");27    controller.enqueue("c");28    controller.close();29  }30});31var ts = new TransformStream();32var writer = ts.writable.getWriter();33var reader = ts.readable.getReader();34writer.write("x");35writer.write("y");36writer.write("z");37writer.close();38reader.read().then(result => assert_equals(result.value, "x", "first chunk should be first written chunk"));39reader.read().then(result => assert_equals(result.value, "y", "second chunk should be second written chunk"));40reader.read().then(result => assert_equals(result.value, "z", "third chunk should be third written chunk"));41reader.read().then(result => assert_equals(result.value, "a", "fourth chunk should be first readable chunk"));42reader.read().then(result => assert_equals(result.value, "b", "fifth chunk should be second readable chunk"));43reader.read().then(result => assert_equals(result.value, "c", "sixth chunk should be third readable chunk"));44reader.read().then(result =>

Using AI Code Generation

1var ts = new TransformStream();2var writer = ts.writable.getWriter();3writer.write('a');4writer.close();5ts.readable.getReader().read().then(function(result) {6  assert_equals(result.value, 'a');7  assert_equals(result.done, false);8  TransformStreamCloseReadableInternal(ts);9  return ts.readable.getReader().read();10}).then(function(result) {11  assert_equals(result.value, undefined);12  assert_equals(result.done, true);13});14var ts = new TransformStream();15var reader = ts.readable.getReader();16reader.read().then(function(result) {17  assert_equals(result.value, undefined);18  assert_equals(result.done, true);19  TransformStreamCloseWritableInternal(ts);20  var writer = ts.writable.getWriter();21  return writer.closed;22}).then(function() {23  assert_unreached('closed promise should not be fulfilled');24}, function(e) {25  assert_equals(e.name, 'TypeError');26});27var ts = new TransformStream();28var writer = ts.writable.getWriter();29writer.write('a');30writer.close();31ts.readable.getReader().read().then(function(result) {32  assert_equals(result.value, 'a');33  assert_equals(result.done, false);34  TransformStreamErrorInternal(ts, new Error('boo'));35  return ts.readable.getReader().read();36}).then(function(result) {37  assert_unreached('read promise should not be fulfilled');38}, function(e) {39  assert_equals(e.name, 'Error');40  assert_equals(e.message, 'boo');41});42var ts = new TransformStream();43var writer = ts.writable.getWriter();44writer.write('a');45writer.close();46ts.readable.getReader().read().then(function(result) {47  assert_equals(result.value, 'a');48  assert_equals(result.done, false);49  TransformStreamErrorInternal(ts, new Error('boo'));50  var writer = ts.writable.getWriter();

Using AI Code Generation

1import { TransformStream } from "web-streams-polyfill/ponyfill";2const ts = new TransformStream();3const writer = ts.writable.getWriter();4const reader = ts.readable.getReader();5writer.write('a');6writer.close();7const { TransformStreamCloseReadableInternal } = require('web-streams-polyfill/lib/ponyfill');8const ts = new TransformStream();9const writer = ts.writable.getWriter();10const reader = ts.readable.getReader();11writer.write('a');12writer.close();13const { TransformStreamCloseReadableInternal } = require('web-streams-polyfill/lib/ponyfill');14const ts = new TransformStream();15const writer = ts.writable.getWriter();16const reader = ts.readable.getReader();17writer.write('a');18writer.close();19const { TransformStreamCloseReadableInternal } = require('web-streams-polyfill/lib/ponyfill');20const ts = new TransformStream();21const writer = ts.writable.getWriter();22const reader = ts.readable.getReader();23writer.write('a');24writer.close();25const { TransformStreamCloseReadableInternal } = require('web-streams-polyfill/lib/ponyfill');26const ts = new TransformStream();27const writer = ts.writable.getWriter();28const reader = ts.readable.getReader();29writer.write('a');30writer.close();31const { TransformStreamCloseReadableInternal } = require('web-streams-polyfill/lib/ponyfill');32const ts = new TransformStream();33const writer = ts.writable.getWriter();34const reader = ts.readable.getReader();35writer.write('a');36writer.close();37const { TransformStreamCloseReadableInternal } = require('web-streams-polyfill/lib/ponyfill');38const ts = new TransformStream();39const writer = ts.writable.getWriter();40const reader = ts.readable.getReader();41writer.write('a');42writer.close();43const { TransformStreamCloseReadableInternal } = require('web-streams-polyfill/lib/ponyfill');44const ts = new TransformStream();45const writer = ts.writable.getWriter();46const reader = ts.readable.getReader();47writer.write('a');48writer.close();49const { TransformStreamCloseReadableInternal } = require('web-streams-polyfill/lib/ponyfill');

Using AI Code Generation

1import { TransformStreamCloseReadableInternal } from "./resources/test-utils.js";2const ts = new TransformStream();3TransformStreamCloseReadableInternal(ts);4await ts.readable.getReader().closed;5console.log("Readable side of the TransformStream is closed");6import { TransformStreamCloseReadableInternal } from "./resources/test-utils.js";7const ts = new TransformStream();8TransformStreamCloseReadableInternal(ts);9await ts.readable.getReader().closed;10console.log("Readable side of the TransformStream is closed");11The test passes if the import statement is changed to:12import * as tsUtils from "./resources/test-utils.js";13tsUtils.TransformStreamCloseReadableInternal(ts);

Using AI Code Generation

1'use strict';2const { TransformStream, TransformStreamCloseReadableInternal } = require('./transform-stream');3const { ReadableStream, ReadableStreamDefaultReader } = require('./readable-stream');4const { WritableStream, WritableStreamDefaultWriter } = require('./writable-stream');5const { CountQueuingStrategy } = require('./queuing-strategy');6const { ByteLengthQueuingStrategy } = require('./byte-length-queuing-strategy');7const { ReadableByteStreamController } = require('./readable-byte-stream-controller');8const { WritableStreamDefaultController } = require('./writable-stream-default-controller');9const { WritableByteStreamController } = require('./writable-byte-stream-controller');10const { TransformStreamDefaultController } = require('./transform-stream-default-controller');11const { TransformStreamDefaultControllerCallbackWrapper } = require('./transform-stream-default-controller');12const { TransformStreamDefaultControllerTransform } = require('./transform-stream-default-controller');13const { TransformStreamDefaultControllerFlush } = require('./transform-stream-default-controller');14const { TransformStreamDefaultControllerEnqueue } = require('./transform-stream-default-controller');15const { TransformStreamDefaultControllerError } = require('./transform-stream-default-controller');16const { TransformStreamDefaultControllerTerminate } = require('./transform-stream-default-controller');17const { TransformStreamDefaultControllerClearAlgorithms } = require('./transform-stream-default-controller');18const { TransformStreamDefaultControllerClearAlgorithms } = require('./transform-stream-default-controller');19const { Transf

Using AI Code Generation

1const { TransformStream, TransformStreamCloseReadableInternal } = require("stream/web");2const ts = new TransformStream();3TransformStreamCloseReadableInternal(ts);4console.log("Readable closed");5const { TransformStream, TransformStreamCloseReadableInternal } = require("stream/web");6const ts = new TransformStream();7TransformStreamCloseReadableInternal(ts);8console.log("Readable closed");9const { TransformStream, TransformStreamCloseReadableInternal } = require("stream/web");10const ts = new TransformStream();11ts._readable.close();12console.log("Readable closed");13const { TransformStream } = require('stream/web');14const transformer = {15    start(controller) {16        console.log('start');17    },18    transform(chunk, controller) {19        console.log('transform');20        controller.enqueue(chunk);21    },22    flush(controller) {23        console.log('flush');24    },25};26const ts = new TransformStream(transformer);27const readable = ts.readable;28const writable = ts.writable;29const reader = readable.getReader();30const writer = writable.getWriter();31writer.write('hello world');32writer.close();33reader.read().then(console.log);34    at writeOrBuffer (internal/streams/writable.js:352:11)35    at TransformStream.Writable.write (internal/streams/writable.js:303:10)36    at TransformStream.Writable.end (internal/streams/writable.js:594:10)37    at TransformStream.TransformStreamDefaultController.close (internal/webstreams/transformstream.js:60:10)38    at TransformStream.TransformStreamDefaultController.enqueue (internal/webstreams/transformstream.js:47:10

Using AI Code Generation

1 > +    let rs = new ReadableStream({2> +      start(controller) {3> +        controller.enqueue(1);4> +        controller.enqueue(2);5> +        controller.enqueue(3); 6 > +      }7> +    });8> +    let ts = new TransformStream({9> +      transform(chunk, controller) {10> +        controller.enqueue(chunk); 11 > +      }12> +    });13> +    let ws = ts.writable;14> +    let rs = ts.readable; 15 > +    });16> +    let ws = ts.writable;17> +    let rs = ts.readable;18> +    let reader = rs.getReader();19> +    let writer = ws.getWriter(); 20 > +    let writer = ws.getWriter();21> +    writer.write(1);22> +    writer.write(2);23> +    writer.write(3);24> +    writer.close(); 25 > +    writer.close();26> +    writer.write(4);27> +    writer.close();28> +    writer.abort();29> +    writer.abort(); 30 > +    writer.abort();31> +    writer.abort();32> +    writer.write(4);33> +    writer.close();34> +    writer.abort();

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