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How to use TransformStreamCloseReadableInternal method in wpt
Best JavaScript code snippet using wpt
transform-stream.js
Source: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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