Best JavaScript code snippet using wpt
WritableStream.js
Source:WritableStream.js
...551 }552 WritableStreamDefaultControllerClose(stream[_writableStreamController]);553 return promise;554 }555 function WritableStreamDefaultWriterCloseWithErrorPropagation(writer) {556 const stream = writer[_ownerWritableStream];557 // assert(stream !== undefined, 'stream is not undefined.');558 const state = stream[_stateAndFlags] & STATE_MASK;559 if (WritableStreamCloseQueuedOrInFlight(stream) || state === CLOSED) {560 return Promise_resolve(undefined);561 }562 if (state === ERRORED) {563 return Promise_reject(stream[_storedError]);564 }565 // assert(state === WRITABLE || state === ERRORING,566 // '_state_ is `"writable"` or `"erroring"`.');567 return WritableStreamDefaultWriterClose(writer);568 }569 function WritableStreamDefaultWriterEnsureClosedPromiseRejected(...
pipe.ts
Source:pipe.ts
...130 });131 // Closing must be propagated forward132 isOrBecomesClosed(source, reader._closedPromise, () => {133 if (!preventClose) {134 shutdownWithAction(() => WritableStreamDefaultWriterCloseWithErrorPropagation(writer));135 } else {136 shutdown();137 }138 });139 // Closing must be propagated backward140 if (WritableStreamCloseQueuedOrInFlight(dest) || dest._state === 'closed') {141 const destClosed = new TypeError('the destination writable stream closed before all data could be piped to it');142 if (!preventCancel) {143 shutdownWithAction(() => ReadableStreamCancel(source, destClosed), true, destClosed);144 } else {145 shutdown(true, destClosed);146 }147 }148 setPromiseIsHandledToTrue(pipeLoop());...
pipe-to.ts
Source:pipe-to.ts
1/**2 * streams/pipe-to - pipeTo algorithm implementation3 * Part of Stardazed4 * (c) 2018-Present by @zenmumbler5 * https://github.com/stardazed/sd-streams6 */7import * as rs from "./readable-internals";8import * as ws from "./writable-internals";9import * as shared from "./shared-internals";10import { ReadableStreamDefaultReader } from "./readable-stream-default-reader";11import { WritableStreamDefaultWriter } from "./writable-stream-default-writer";12// add a wrapper to handle falsy rejections13interface ErrorWrapper {14 actualError: shared.ErrorResult;15}16export function pipeTo<ChunkType>(source: rs.SDReadableStream<ChunkType>, dest: ws.WritableStream<ChunkType>, options: StreamPipeOptions) {17 const preventClose = !!options.preventClose;18 const preventAbort = !!options.preventAbort;19 const preventCancel = !!options.preventCancel;20 const signal = options.signal;21 let shuttingDown = false;22 let latestWrite = Promise.resolve();23 const promise = shared.createControlledPromise<void>();24 // If IsReadableByteStreamController(this.[[readableStreamController]]) is true, let reader be either ! AcquireReadableStreamBYOBReader(this) or ! AcquireReadableStreamDefaultReader(this), at the user agentâs discretion.25 // Otherwise, let reader be ! AcquireReadableStreamDefaultReader(this).26 const reader = new ReadableStreamDefaultReader(source);27 const writer = new WritableStreamDefaultWriter(dest);28 let abortAlgorithm: () => any;29 if (signal !== undefined) {30 abortAlgorithm = () => {31 const error = new DOMException("Aborted", "AbortError");32 const actions: (() => Promise<void>)[] = [];33 if (preventAbort === false) {34 actions.push(() => {35 if (dest[shared.state_] === "writable") {36 return ws.writableStreamAbort(dest, error);37 }38 return Promise.resolve();39 });40 }41 if (preventCancel === false) {42 actions.push(() => {43 if (source[shared.state_] === "readable") {44 return rs.readableStreamCancel(source, error);45 }46 return Promise.resolve();47 });48 }49 shutDown(() => {50 return Promise.all(actions.map(a => a())).then(_ => undefined);51 }, { actualError: error });52 };53 if (signal.aborted === true) {54 abortAlgorithm();55 }56 else {57 signal.addEventListener("abort", abortAlgorithm);58 }59 }60 function onStreamErrored(stream: rs.SDReadableStream<ChunkType> | ws.WritableStream<ChunkType>, promise: Promise<void>, action: (error: shared.ErrorResult) => void) {61 if (stream[shared.state_] === "errored") {62 action(stream[shared.storedError_]);63 } else {64 promise.catch(action);65 }66 }67 function onStreamClosed(stream: rs.SDReadableStream<ChunkType> | ws.WritableStream<ChunkType>, promise: Promise<void>, action: () => void) {68 if (stream[shared.state_] === "closed") {69 action();70 } else {71 promise.then(action);72 }73 }74 onStreamErrored(source, reader[rs.closedPromise_].promise, error => {75 if (! preventAbort) {76 shutDown(() => ws.writableStreamAbort(dest, error), { actualError: error });77 }78 else {79 shutDown(undefined, { actualError: error });80 }81 });82 onStreamErrored(dest, writer[ws.closedPromise_].promise, error => {83 if (! preventCancel) {84 shutDown(() => rs.readableStreamCancel(source, error), { actualError: error });85 }86 else {87 shutDown(undefined, { actualError: error });88 }89 });90 onStreamClosed(source, reader[rs.closedPromise_].promise, () => {91 if (! preventClose) {92 shutDown(() => ws.writableStreamDefaultWriterCloseWithErrorPropagation(writer));93 }94 else {95 shutDown();96 }97 });98 if (ws.writableStreamCloseQueuedOrInFlight(dest) || dest[shared.state_] === "closed") {99 // Assert: no chunks have been read or written.100 const destClosed = new TypeError();101 if (! preventCancel) {102 shutDown(() => rs.readableStreamCancel(source, destClosed), { actualError: destClosed });103 }104 else {105 shutDown(undefined, { actualError: destClosed });106 }107 }108 function awaitLatestWrite(): Promise<void> {109 const curLatestWrite = latestWrite;110 return latestWrite.then(() => curLatestWrite === latestWrite ? undefined : awaitLatestWrite());111 }112 function flushRemainder() {113 if (dest[shared.state_] === "writable" && (! ws.writableStreamCloseQueuedOrInFlight(dest))) {114 return awaitLatestWrite();115 }116 else {117 return undefined;118 }119 }120 function shutDown(action?: () => Promise<void>, error?: ErrorWrapper) {121 if (shuttingDown) {122 return;123 }124 shuttingDown = true;125 if (action === undefined) {126 action = () => Promise.resolve();127 }128 function finishShutDown() {129 action!().then(130 _ => finalize(error),131 newError => finalize({ actualError: newError })132 );133 }134 const flushWait = flushRemainder();135 if (flushWait) {136 flushWait.then(finishShutDown);137 }138 else {139 finishShutDown();140 }141 }142 function finalize(error?: ErrorWrapper) {143 ws.writableStreamDefaultWriterRelease(writer);144 rs.readableStreamReaderGenericRelease(reader);145 if (signal && abortAlgorithm) {146 signal.removeEventListener("abort", abortAlgorithm);147 }148 if (error) {149 promise.reject(error.actualError);150 }151 else {152 promise.resolve(undefined);153 }154 }155 function next() {156 if (shuttingDown) {157 return;158 }159 writer[ws.readyPromise_].promise.then(() => {160 rs.readableStreamDefaultReaderRead(reader).then(161 ({ value, done }) => {162 if (done) {163 return;164 }165 latestWrite = ws.writableStreamDefaultWriterWrite(writer, value!).catch(() => {});166 next();167 },168 _error => {169 latestWrite = Promise.resolve();170 }171 );172 });173 }174 next();175 return promise.promise;...
Using AI Code Generation
1'use strict';2const { WritableStream } = require('stream/web');3const { WritableStreamDefaultWriterCloseWithErrorPropagation } = require('stream/web');4const { WritableStreamDefaultWriterRelease } = require('stream/web');5const { WritableStreamDefaultWriterGetDesiredSize } = require('stream/web');6const { WritableStreamDefaultWriterGetReady } = require('stream/web');7const { WritableStreamDefaultWriterWrite } = require('stream/web');8const { WritableStreamDefaultControllerError } = require('stream/web');9const { WritableStreamDefaultControllerGetDesiredSize } = require('stream/web');10const { WritableStreamDefaultControllerClose } = require('stream/web');11const { WritableStreamDefaultControllerGetChunkSize } = require('stream/web');12const { WritableStreamDefaultControllerWrite } = require('stream/web');13const { WritableStreamDefaultControllerCanCloseOrEnqueue } = require('stream/web');14const { WritableStreamDefaultController } = require('stream/web
Using AI Code Generation
1const { WritableStreamDefaultWriterCloseWithErrorPropagation } = require('../lib/writable-stream');2const { WritableStream } = require('../lib/writable-stream');3const writer = WritableStreamDefaultWriterCloseWithErrorPropagation(new WritableStream());4writer.releaseLock();5const { WritableStreamDefaultWriterCloseWithErrorPropagation } = require('web-streams-polyfill/lib/writable-stream');6const { WritableStream } = require('web-streams-polyfill/lib/writable-stream');7const writer = WritableStreamDefaultWriterCloseWithErrorPropagation(new WritableStream());8writer.releaseLock();9const { WritableStreamDefaultWriterCloseWithErrorPropagation } = require('node-web-streams/lib/writable-stream');10const { WritableStream } = require('node-web-streams/lib/writable-stream');11const writer = WritableStreamDefaultWriterCloseWithErrorPropagation(new WritableStream());12writer.releaseLock();13const { WritableStreamDefaultWriterCloseWithErrorPropagation } = require('web-streams-polyfill/lib/writable-stream');14const { WritableStream } = require('web-streams-polyfill/lib/writable-stream');15const writer = WritableStreamDefaultWriterCloseWithErrorPropagation(new WritableStream());16writer.releaseLock();17const { WritableStreamDefaultWriterCloseWithErrorPropagation } = require('node-web-streams/lib/writable-stream');18const { WritableStream } = require('node-web-streams/lib/writable-stream');19const writer = WritableStreamDefaultWriterCloseWithErrorPropagation(new WritableStream());20writer.releaseLock();21const { WritableStreamDefaultWriterCloseWithErrorPropagation } = require('web-streams-polyfill/lib/writable-stream');22const { WritableStream } = require('web-streams-poly
Using AI Code Generation
1const { WritableStream, WritableStreamDefaultWriter } = require('stream/web');2const assert = require('assert');3const ws = new WritableStream({4 write(chunk) {5 return new Promise((resolve, reject) => {6 setTimeout(() => {7 reject(new Error('Test'));8 }, 100);9 });10 }11});12const writer = new WritableStreamDefaultWriter(ws);13const writerClosed = writer.closed;14writer.write('a');15writer.write('b');16writer.write('c');17writer.close();18writerClosed.catch(() => {19 writer.write('d');20 writer.write('e');21 writer.write('f');22 writer.close();23});24setTimeout(() => {25 assert.strictEqual(writer.desiredSize, 1);26}, 200);27WritableStreamDefaultWriterCloseWithErrorPropagation ( writer )28WritableStreamClose ( stream )
Using AI Code Generation
1'use strict';2const { WritableStream, WritableStreamDefaultWriter } = require('streams');3const ws = new WritableStream();4const writer = new WritableStreamDefaultWriter(ws);5writer.close();6writer.closed.then(() => {7 console.log('closed');8}, (e) => {9 console.log('error');10});11writer.close();
Using AI Code Generation
1var ws = new WritableStream({2 write: function(chunk) {3 return new Promise(function(resolve, reject) {4 reject(new Error("something went wrong"));5 });6 }7});8var writer = ws.getWriter();9writer.write("a").then(function() {10 return writer.write("b");11}).then(function() {12 return writer.close();13}).catch(function(error) {14 console.log(error);15});16var ws = new WritableStream({17 write: function(chunk) {18 return new Promise(function(resolve, reject) {19 reject(new Error("something went wrong"));20 });21 }22});23var writer = ws.getWriter();24writer.write("a").then(function() {25 return writer.write("b");26}).then(function() {27 return writer.close();28}).catch(function(error) {29 console.log(error);30});31var ws = new WritableStream({32 write: function(chunk) {33 return new Promise(function(resolve, reject) {34 reject(new Error("something went wrong"));35 });36 }37});38var writer = ws.getWriter();39writer.write("a").then(function() {40 return writer.write("b");41}).then(function() {42 return writer.close();43}).catch(function(error) {44 console.log(error);45});46var ws = new WritableStream({47 write: function(chunk) {48 return new Promise(function(resolve, reject) {49 reject(new Error("something went wrong"));50 });51 }52});53var writer = ws.getWriter();54writer.write("a").then(function() {55 return writer.write("b");56}).then(function() {57 return writer.close();58}).catch(function(error) {59 console.log(error);60});61const ws = new WritableStream({62 write(chunk) {63 return new Promise((resolve, reject) => {64 reject(new Error("something went wrong"));65 });66 }67});
Using AI Code Generation
1var ws = new WritableStream();2var writer = ws.getWriter();3writer.close();4writer.releaseLock();5writer.close();6writer.write();7var ws = new WritableStream();8var writer = ws.getWriter();9writer.close();10writer.releaseLock();11writer.close();12writer.write();13var ws = new WritableStream();14var writer = ws.getWriter();15writer.close();16writer.releaseLock();17writer.close();18writer.write();19var ws = new WritableStream();20var writer = ws.getWriter();21writer.close();22writer.releaseLock();23writer.close();24writer.write();25var ws = new WritableStream();26var writer = ws.getWriter();27writer.close();28writer.releaseLock();29writer.close();30writer.write();31var ws = new WritableStream();32var writer = ws.getWriter();33writer.close();34writer.releaseLock();35writer.close();36writer.write();37var ws = new WritableStream();38var writer = ws.getWriter();39writer.close();40writer.releaseLock();41writer.close();42writer.write();43var ws = new WritableStream();44var writer = ws.getWriter();45writer.close();46writer.releaseLock();47writer.close();48writer.write();49var ws = new WritableStream();50var writer = ws.getWriter();51writer.close();52writer.releaseLock();53writer.close();54writer.write();55var ws = new WritableStream();56var writer = ws.getWriter();57writer.close();58writer.releaseLock();59writer.close();60writer.write();
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