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How to use TransformStreamDefaultTransform method in wpt

Best JavaScript code snippet using wpt

transform-stream.js

Source:transform-stream.js

...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]);...

transform-stream-polyfill.js

Source:transform-stream-polyfill.js

...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);...

Using AI Code Generation

1var ts = new TransformStream({2  transform(chunk, controller) {3    controller.enqueue(chunk);4  }5});6var writer = ts.writable.getWriter();7var reader = ts.readable.getReader();8writer.write("a");9reader.read().then(result => {10  console.log(result.value);11  assert_equals(result.value, "a");12  writer.close();13  return reader.read();14}).then(result => {15  assert_true(result.done);16});17var ts = new TransformStream({18  transform(chunk, controller) {19    controller.enqueue(chunk);20  }21});22var writer = ts.writable.getWriter();23var reader = ts.readable.getReader();24writer.write("a");25reader.read().then(result => {26  console.log(result.value);27  assert_equals(result.value, "a");28  writer.close();29  return reader.read();30}).then(result => {31  assert_true(result.done);32});33var ts = new TransformStream({34  transform(chunk, controller) {35    controller.error('a');36  }37});38var writer = ts.writable.getWriter();39var reader = ts.readable.getReader();40writer.write("a");41reader.read().catch(e => {42  console.log(e);43  assert_equals(e, 'a');44});45var ts = new TransformStream({46  transform(chunk, controller) {47    controller.terminate();48  }49});50var writer = ts.writable.getWriter();51var reader = ts.readable.getReader();52writer.write("a");53reader.read().catch(e => {54  console.log(e);55  assert_equals(e, new TypeError('TransformStream is already errored'));56});57var ts = new TransformStream({58  transform(chunk, controller) {59    controller.enqueue(chunk);60  }61});62var writer = ts.writable.getWriter();63var reader = ts.readable.getReader();64writer.write("a");65writer.write("b");66writer.write("c");67reader.read().then(result => {68  console.log(result.value);69  assert_equals(result.value, "a");70  return reader.read();71}).then(result => {72  console.log(result.value);73  assert_equals(result.value, "b");

Using AI Code Generation

1import { TransformStreamDefaultTransform } from "web-streams-polyfill/ponyfill";2import { TransformStreamDefaultTransform } from "web-streams-polyfill";3import { TransformStreamDefaultTransform } from "web-streams-polyfill/es6";4TransformStreamDefaultTransform(chunk, controller)5import { TransformStreamDefaultTransform } from "web-streams-polyfill";6import { TransformStreamDefaultTransform } from "web-streams-polyfill/es6";7import { TransformStreamDefaultTransform } from "web-streams-polyfill/ponyfill";8const transformer = {9  start(controller) {10    this.controller = controller;11  },12  async transform(chunk, controller) {13    const result = await TransformStreamDefaultTransform(chunk, this.controller);14    controller.enqueue(result + 10);15  },16  flush(controller) {17    controller.enqueue("!");18  }19};20const transformStream = new TransformStream(transformer);21const readableStream = transformStream.readable;22const writableStream = transformStream.writable;23const writer = writableStream.getWriter();24writer.write(1);25writer.write(2);26writer.write(3);27writer.close();28const reader = readableStream.getReader();29reader.read().then(({ value, done }) => console

Using AI Code Generation

1var ts = new TransformStream();2var writer = ts.writable.getWriter();3var reader = ts.readable.getReader();4writer.write("a");5writer.write("b");6writer.write("c");7writer.close();8var transformCalled = false;9var transformPromise = reader.read().then(function(result) {10  assert_equals(result.value, "A", "transformed chunk should be A");11  assert_equals(result.done, false, "done should be false");12  transformCalled = true;13  return reader.read();14}).then(function(result) {15  assert_equals(result.value, "B", "transformed chunk should be B");16  assert_equals(result.done, false, "done should be false");17  return reader.read();18}).then(function(result) {19  assert_equals(result.value, "C", "transformed chunk should be C");20  assert_equals(result.done, false, "done should be false");21  return reader.read();22}).then(function(result) {23  assert_equals(result.value, undefined, "transformed chunk should be undefined");24  assert_equals(result.done, true, "done should be true");25  return reader.read();26}).then(function(result) {27  assert_equals(result.value, undefined, "transformed chunk should be undefined");28  assert_equals(result.done, true, "done should be true");29  assert_true(transformCalled, "transform should have been called");30});31promise_test(function() {32  return transformPromise;33}, "TransformStreamDefaultTransform should be called");34function assert_equals(actual, expected, description) {35  if (actual != expected) {36    description = description ? " - " + description : "";37    throw new AssertionError("assert_equals: " + actual + " is not equal to " + expected + description);38  }39}40function promise_test(func, name, properties) {41  var test = async_test(name, properties);42  var promise = Promise.resolve().then(func);43  promise.then(function() {44    test.done();45  }, function(err) {46    test.step(function() {47      throw err;48    });49    test.done();50  });51  return test;52}53function AssertionError(message) {

Using AI Code Generation

1import { TransformStreamDefaultTransform } from2"streams/transform-stream/transform-stream-default-transform";3import { TransformStream } from "streams/transform-stream";4import { ReadableStream } from "streams/readable-stream";5import { WritableStream } from "streams/writable-stream";6import { CountQueuingStrategy } from "streams/queues-with-sizes";7import { ReadableStreamDefaultController } from8"streams/readable-stream/default-controller";9import { WritableStreamDefaultController } from10"streams/writable-stream/default-controller";11import { TransformStreamDefaultController } from12"streams/transform-stream/default-controller";13import { TransformStreamDefaultControllerCallback } from14"streams/transform-stream/default-controller";15import { ByteLengthQueuingStrategy } from "streams/queues-with-sizes";16import { ReadableByteStreamController } from17"streams/readable-stream/byte-stream-controller";18import { WritableStreamDefaultWriter } from19"streams/writable-stream/writable-stream-default-writer";20import { ReadableStreamDefaultReader } from21"streams/readable-stream/readable-stream-default-reader";22import { TransformStreamDefaultControllerTransformCallback } from23"streams/transform-stream/default-controller";24import { TransformStreamDefaultControllerFlushCallback } from25"streams/transform-stream/default-controller";26import { TransformStreamDefaultControllerEnqueueCallback } from27"streams/transform-stream/default-controller";28import { TransformStreamDefaultControllerErrorCallback } from29"streams/transform-stream/default-controller";30import { TransformStreamDefaultControllerTerminateCallback } from31"streams/transform-stream/default-controller";32import { ReadableStreamDefaultControllerCloseCallback } from33"streams/readable-stream/default-controller";34import { ReadableStreamDefaultControllerEnqueueCallback } from35"streams/readable-stream/default-controller";36import { ReadableStreamDefaultControllerErrorCallback } from37"streams/readable-stream/default-controller";38import { ReadableStreamDefaultControllerCancelCallback } from39"streams/readable-stream/default-controller";40import { ReadableStreamDefaultControllerPullCallback } from41"streams/readable-stream/default-controller";42import { WritableStreamDefaultControllerCloseCallback } from43"streams/writable-stream/default-controller";44import { WritableStreamDefaultControllerWriteCallback } from45"streams/writable-stream/default-controller";46import { WritableStreamDefaultControllerAbortCallback } from47"streams/writable-stream/default-controller";48import { WritableStreamDefaultControllerErrorCallback } from

Using AI Code Generation

1var TransformStream = require('stream').Transform;2var transformStream = new TransformStream();3var chunk = 'hello';4var transformStreamDefaultTransform = function(transformStream, chunk){5  return transformStream._transform(chunk, 'utf-8', function(error, data){6    if(error){7      console.log(error);8    }9    else{10      console.log(data);11    }12  });13}14transformStreamDefaultTransform(transformStream, chunk);15var TransformStream = require('stream').Transform;16var transformStream = new TransformStream();17var chunk = 'hello';18var transformStreamDefaultTransform = function(transformStream, chunk){19  return transformStream._transform(chunk, 'utf-8', function(error, data){20    if(error){21      console.log(error);22    }23    else{24      console.log(data);25    }26  });27}28transformStreamDefaultTransform(transformStream, chunk).then(function(){29  console.log('fulfills with undefined');30});31var TransformStream = require('stream').Transform;32var transformStream = new TransformStream();33var chunk = 'hello';34var transformStreamDefaultTransform = function(transformStream, chunk){35  return transformStream._transform(chunk, 'utf-8', function(error, data){36    if(error){37      console.log(error);38    }39    else{40      console.log(data);41    }42  });43}44transformStreamDefaultTransform(transformStream, chunk).then(function(){45  console.log('fulfills with undefined');46}).catch(function(error){47  console.log(error);48});

Using AI Code Generation

1const { TransformStream, TransformStreamDefaultTransform } = require('stream/web');2const { ReadableStream, WritableStream } = require('stream/web');3const { strictEqual } = require('assert');4const { test } = require('tap');5test('TransformStreamDefaultTransform method', async () => {6  const ts = new TransformStream({7    start(controller) {8      this.controller = controller;9    },10    transform(chunk, controller) {11      controller.enqueue(chunk);12    }13  });14  const reader = ts.readable.getReader();15  const writer = ts.writable.getWriter();16  writer.write('a');17  writer.write('b');18  writer.write('c');19  writer.close();20  let result = await reader.read();21  strictEqual(result.value, 'a');22  strictEqual(result.done, false);23  result = await reader.read();24  strictEqual(result.value, 'b');25  strictEqual(result.done, false);26  result = await reader.read();27  strictEqual(result.value, 'c');28  strictEqual(result.done, false);29  result = await reader.read();30  strictEqual(result.value, undefined);31  strictEqual(result.done, true);32});33    at: TransformStreamDefaultTransform (/home/runner/work/node/node/test/parallel/test-stream-transform.js:12:13)34    at: TransformStreamDefaultTransform (/home/runner/work/node/node/test/parallel/test-stream-transform.js:12:13)

Using AI Code Generation

1var t = new TransformStreamDefaultTransform();2t.transform(new ReadableStreamDefaultReader(), new WritableStreamDefaultWriter());3var t = new TransformStreamDefaultFlush();4t.flush(new ReadableStreamDefaultReader(), new WritableStreamDefaultWriter());5var t = new TransformStreamDefaultControllerEnqueue();6t.enqueue(new ReadableStreamDefaultController(), new Uint8Array());7var t = new TransformStreamDefaultControllerError();8t.error(new ReadableStreamDefaultController(), new TypeError());9var t = new TransformStreamDefaultControllerTerminate();10t.terminate(new ReadableStreamDefaultController());11var t = new TransformStreamDefaultControllerGetDesiredSize();12t.getDesiredSize(new ReadableStreamDefaultController());13var t = new TransformStreamDefaultControllerClearAlgorithms();14t.clearAlgorithms(new ReadableStreamDefaultController());15var t = new TransformStreamDefaultControllerPerformTransform();16t.performTransform(new ReadableStreamDefaultController(), new Uint8Array());17var t = new TransformStreamDefaultControllerError();18t.error(new ReadableStreamDefaultController(), new TypeError());19var t = new TransformStreamDefaultControllerTerminate();20t.terminate(new ReadableStreamDefaultController());

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