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How to use ReadableByteStreamControllerGetDesiredSize method in wpt

Best JavaScript code snippet using wpt

readable_byte_stream_controller.ts

Source: readable_byte_stream_controller.ts

1// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.2import {3  BufferQueueItem,4  CancelAlgorithm,5  isDetachedBuffer,6  isReadableByteStreamController,7  PullAlgorithm,8  resetQueue,9  readableByteStreamControllerCallPullIfNeeded,10  readableByteStreamControllerClearAlgorithms,11  readableByteStreamControllerClose,12  readableByteStreamControllerEnqueue,13  readableByteStreamControllerError,14  readableByteStreamControllerGetDesiredSize,15  readableByteStreamControllerHandleQueueDrain,16  readableStreamAddReadRequest,17  readableStreamHasDefaultReader,18  readableStreamGetNumReadRequests,19  readableStreamCreateReadResult,20  setFunctionName,21} from "./internals.ts";22import { ReadableStreamImpl } from "./readable_stream.ts";23import * as sym from "./symbols.ts";24import { assert } from "../../util.ts";25import { customInspect } from "../console.ts";26export class ReadableByteStreamControllerImpl27  implements ReadableByteStreamController {28  [sym.autoAllocateChunkSize]: number | undefined;29  [sym.byobRequest]: undefined;30  [sym.cancelAlgorithm]: CancelAlgorithm;31  [sym.closeRequested]: boolean;32  [sym.controlledReadableByteStream]: ReadableStreamImpl<Uint8Array>;33  [sym.pullAgain]: boolean;34  [sym.pullAlgorithm]: PullAlgorithm;35  [sym.pulling]: boolean;36  [sym.queue]: BufferQueueItem[];37  [sym.queueTotalSize]: number;38  [sym.started]: boolean;39  [sym.strategyHWM]: number;40  private constructor() {41    throw new TypeError(42      "ReadableByteStreamController's constructor cannot be called."43    );44  }45  get byobRequest(): undefined {46    return undefined;47  }48  get desiredSize(): number | null {49    if (!isReadableByteStreamController(this)) {50      throw new TypeError("Invalid ReadableByteStreamController.");51    }52    return readableByteStreamControllerGetDesiredSize(this);53  }54  close(): void {55    if (!isReadableByteStreamController(this)) {56      throw new TypeError("Invalid ReadableByteStreamController.");57    }58    if (this[sym.closeRequested]) {59      throw new TypeError("Closed already requested.");60    }61    if (this[sym.controlledReadableByteStream][sym.state] !== "readable") {62      throw new TypeError(63        "ReadableByteStreamController's stream is not in a readable state."64      );65    }66    readableByteStreamControllerClose(this);67  }68  enqueue(chunk: ArrayBufferView): void {69    if (!isReadableByteStreamController(this)) {70      throw new TypeError("Invalid ReadableByteStreamController.");71    }72    if (this[sym.closeRequested]) {73      throw new TypeError("Closed already requested.");74    }75    if (this[sym.controlledReadableByteStream][sym.state] !== "readable") {76      throw new TypeError(77        "ReadableByteStreamController's stream is not in a readable state."78      );79    }80    if (!ArrayBuffer.isView(chunk)) {81      throw new TypeError(82        "You can only enqueue array buffer views when using a ReadableByteStreamController"83      );84    }85    if (isDetachedBuffer(chunk.buffer)) {86      throw new TypeError("Cannot enqueue a view onto a detached ArrayBuffer");87    }88    readableByteStreamControllerEnqueue(this, chunk);89  }90  // eslint-disable-next-line @typescript-eslint/no-explicit-any91  error(error?: any): void {92    if (!isReadableByteStreamController(this)) {93      throw new TypeError("Invalid ReadableByteStreamController.");94    }95    readableByteStreamControllerError(this, error);96  }97  // eslint-disable-next-line @typescript-eslint/no-explicit-any98  [sym.cancelSteps](reason: any): PromiseLike<void> {99    // 3.11.5.1.1 If this.[[pendingPullIntos]] is not empty,100    resetQueue(this);101    const result = this[sym.cancelAlgorithm](reason);102    readableByteStreamControllerClearAlgorithms(this);103    return result;104  }105  [sym.pullSteps](): Promise<ReadableStreamReadResult<Uint8Array>> {106    const stream = this[sym.controlledReadableByteStream];107    assert(readableStreamHasDefaultReader(stream));108    if (this[sym.queueTotalSize] > 0) {109      assert(readableStreamGetNumReadRequests(stream) === 0);110      const entry = this[sym.queue].shift();111      assert(entry);112      this[sym.queueTotalSize] -= entry.size;113      readableByteStreamControllerHandleQueueDrain(this);114      const view = new Uint8Array(entry.value, entry.offset, entry.size);115      return Promise.resolve(116        readableStreamCreateReadResult(117          view,118          false,119          stream[sym.reader]![sym.forAuthorCode]120        )121      );122    }123    // 3.11.5.2.5 If autoAllocateChunkSize is not undefined,124    const promise = readableStreamAddReadRequest(stream);125    readableByteStreamControllerCallPullIfNeeded(this);126    return promise;127  }128  [customInspect](): string {129    return `${this.constructor.name} { byobRequest: ${String(130      this.byobRequest131    )}, desiredSize: ${String(this.desiredSize)} }`;132  }133}134setFunctionName(135  ReadableByteStreamControllerImpl,136  "ReadableByteStreamController"...

ReadableByteStreamController.js

Source: ReadableByteStreamController.js

1/*2 * Copyright (C) 2016 Canon Inc.3 *4 * Redistribution and use in source and binary forms, with or without5 * modification, are permitted provided that the following conditions6 * are met:7 * 1. Redistributions of source code must retain the above copyright8 *    notice, this list of conditions and the following disclaimer.9 * 2. Redistributions in binary form must reproduce the above copyright10 *    notice, this list of conditions and the following disclaimer in the11 *    documentation and/or other materials provided with the distribution.12 *13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.24 */25// @conditional=ENABLE(STREAMS_API)26function enqueue(chunk)27{28    "use strict";29    if (!@isReadableByteStreamController(this))30        throw @makeThisTypeError("ReadableByteStreamController", "enqueue");31    if (this.@closeRequested)32        @throwTypeError("ReadableByteStreamController is requested to close");33    if (this.@controlledReadableStream.@state !== @streamReadable)34        @throwTypeError("ReadableStream is not readable");35    if (!@isObject(chunk))36        @throwTypeError("Provided chunk is not an object");37    if (!@ArrayBuffer.@isView(chunk))38        @throwTypeError("Provided chunk is not an ArrayBuffer view");39    return @readableByteStreamControllerEnqueue(this, chunk);40}41function error(error)42{43    "use strict";44    if (!@isReadableByteStreamController(this))45        throw @makeThisTypeError("ReadableByteStreamController", "error");46    if (this.@controlledReadableStream.@state !== @streamReadable)47        @throwTypeError("ReadableStream is not readable");48    @readableByteStreamControllerError(this, error);49}50function close()51{52    "use strict";53    if (!@isReadableByteStreamController(this))54        throw @makeThisTypeError("ReadableByteStreamController", "close");55    if (this.@closeRequested)56        @throwTypeError("Close has already been requested");57    if (this.@controlledReadableStream.@state !== @streamReadable)58        @throwTypeError("ReadableStream is not readable");59    @readableByteStreamControllerClose(this);60}61@getter62function byobRequest()63{64    "use strict";65    if (!@isReadableByteStreamController(this))66        throw @makeGetterTypeError("ReadableByteStreamController", "byobRequest");67    if (this.@byobRequest === @undefined && this.@pendingPullIntos.length) {68        const firstDescriptor = this.@pendingPullIntos[0];69        const view = new @Uint8Array(firstDescriptor.buffer,70            firstDescriptor.byteOffset + firstDescriptor.bytesFilled,71            firstDescriptor.byteLength - firstDescriptor.bytesFilled);72        this.@byobRequest = new @ReadableStreamBYOBRequest(this, view);73    }74    return this.@byobRequest;75}76@getter77function desiredSize()78{79    "use strict";80    if (!@isReadableByteStreamController(this))81        throw @makeGetterTypeError("ReadableByteStreamController", "desiredSize");82    return @readableByteStreamControllerGetDesiredSize(this);...

Using AI Code Generation

1var rs = new ReadableStream({2    start(c) {3        var desiredSize = ReadableByteStreamControllerGetDesiredSize(c);4        assert_equals(desiredSize, 0, 'Desired size should be 0');5        c.enqueue(new Uint8Array(1));6    }7});8assert_equals(rs.desiredSize, 0, 'Desired size should be 0');9var reader = rs.getReader();10reader.read().then(function(result) {11    assert_false(result.done, 'Result should not be done');12    assert_equals(result.value.byteLength, 1, 'Result value should be 1 byte');13    assert_equals(rs.desiredSize, -1, 'Desired size should be -1');14    return reader.read();15}).then(function(result) {16    assert_true(result.done, 'Result should be done');17    assert_equals(rs.desiredSize, 0, 'Desired size should be 0');18    test.done();19}, test.unreached_func('Unexpected rejection'));20var rs = new ReadableStream({21    pull(c) {22        var view = c.byobRequest.view;23        view[0] = 1;24        c.byobRequest.respond(1);25    }26});27var reader = rs.getReader({ mode: 'byob' });28reader.read(new Uint8Array(1)).then(function(result) {29    assert_false(result.done, 'Result should not be done');30    assert_equals(result.value.byteLength, 1, 'Result value should be 1 byte');31    assert_equals(result.value[0], 1, 'Result value should be 1');32    return reader.read(new Uint8Array(1));33}).then(function(result) {34    assert_true(result.done, 'Result should be done');35    test.done();36}, test.unreached_func('Unexpected rejection'));37var rs = new ReadableStream({38    pull(c) {39        var view = c.byobRequest.view;40        view[0] = 1;41        c.byobRequest.respond(1);42    }43});44var reader = rs.getReader({ mode: 'byob' });45reader.read(new Uint8Array

Using AI Code Generation

1var rs = new ReadableStream({2  pull: function(c) {3    var desiredSize = ReadableByteStreamControllerGetDesiredSize(c);4    console.log(desiredSize);5  }6});7rs.getReader().read().then(function(v) { console.log(v); });

Using AI Code Generation

1test(function() {2  var rs = new ReadableStream({3    start: function(controller) {4      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),5                    0, 'desiredSize should be 0');6      controller.enqueue(new ArrayBuffer(10));7      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),8                    0, 'desiredSize should be 0');9      controller.close();10      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),11                    0, 'desiredSize should be 0');12    }13  });14}, 'ReadableByteStreamControllerGetDesiredSize should return 0 if the stream is closed');15test(function() {16  var rs = new ReadableStream({17    start: function(controller) {18      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),19                    0, 'desiredSize should be 0');20      controller.enqueue(new ArrayBuffer(10));21      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),22                    0, 'desiredSize should be 0');23      controller.error();24      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),25                    0, 'desiredSize should be 0');26    }27  });28}, 'ReadableByteStreamControllerGetDesiredSize should return 0 if the stream is errored');29test(function() {30  var rs = new ReadableStream({31    start: function(controller) {32      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),33                    0, 'desiredSize should be 0');34      controller.enqueue(new ArrayBuffer(10));35      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),36                    0, 'desiredSize should be 0');37      controller.close();38      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),39                    0, 'desiredSize should be 0');40      controller.error();41      assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),42                    0, 'desiredSize should be 0');43    }44  });45}, 'ReadableByteStreamControllerGetDesiredSize should return 0 if the stream is closed and errored');

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);4    controller.enqueue(new Uint8Array(1));5    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);6    controller.enqueue(new Uint8Array(1));7    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);8    controller.enqueue(new Uint8Array(1));9    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);10    controller.enqueue(new Uint8Array(1));11    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);12    controller.enqueue(new Uint8Array(1));13    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);14    controller.enqueue(new Uint8Array(1));15    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);16    controller.enqueue(new Uint8Array(1));17    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);18    controller.enqueue(new Uint8Array(1));19    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);20    controller.enqueue(new Uint8Array(1));21    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);22    controller.enqueue(new Uint8Array(1));23    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);24    controller.enqueue(new Uint8Array(1));25    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller), 0);26    controller.close();27  }28});29rs.getReader();30var rs = new ReadableStream({31  start(controller) {32    assert_equals(ReadableByteStreamControllerGetDesiredSize(controller),

Using AI Code Generation

1var rs = new ReadableStream({2  start(controller) {3    controller.enqueue(new Uint8Array([0x00, 0x01]));4  }5});6var reader = rs.getReader();7reader.read().then(function(result) {8  var desiredSize = ReadableByteStreamControllerGetDesiredSize(reader._readableStreamController);9  assert_equals(desiredSize, 0, 'desiredSize should be 0');10  reader.releaseLock();11}).catch(unreached_rejection);12var rs = new ReadableStream({13  start(controller) {14    controller.enqueue('a');15    controller.enqueue('b');16    controller.enqueue('c');17  }18});19var reader = rs.getReader();20reader.read().then(function(result) {21  var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(reader._readableStreamController);22  assert_equals(desiredSize, 2, 'desiredSize should be 2');23  reader.releaseLock();24}).catch(unreached_rejection);25var rs = new ReadableStream({26  start(controller) {27    var view = controller.byobRequest.view;28    view[0] = 0x00;29    view[1] = 0x01;30    controller.byobRequest.respond(2);31  }32});33var reader = rs.getReader({ mode: 'byob' });34var buffer = new ArrayBuffer(2);35reader.read(new Uint8Array(buffer)).then(function(result) {36  var desiredSize = ReadableStreamBYOBRequestGetDesiredSize(reader._readableStreamController._byobRequest);37  assert_equals(desiredSize, 0, 'desiredSize should be 0');38  reader.releaseLock();39}).catch(unreached_rejection);40var ws = new WritableStream({41  write(chunk) {42    return new Promise(resolve => setTimeout(resolve, 100));43  }44});45var writer = ws.getWriter();46var desiredSize = WritableStreamDefaultControllerGetDesiredSize(writer._writableStreamController);47assert_equals(desiredSize, 1, 'desiredSize should be 1');48writer.write('a').then(function() {

Using AI Code Generation

1promise_test(t => {2  let controller;3  const rs = new ReadableStream({4    start(c) {5      controller = c;6    }7  });8  return Promise.all([9    rs.getReader().read().then(result => assert_object_equals(result, { value: undefined, done: true })),10    rs.getReader().read().then(result => assert_object_equals(result, { value: undefined, done: true }))11  ]);12}, 'ReadableStream with byte source: getReader() twice');13promise_test(t => {14  let controller;15  const rs = new ReadableStream({16    start(c) {17      controller = c;18    }19  });20  const reader = rs.getReader();21  return reader.read().then(result => {22    assert_object_equals(result, { value: undefined, done: true });23    return reader.releaseLock();24  }).then(() => {25    return reader.closed;26  }).then(() => {27    assert_throws(new TypeError(), () => reader.read());28  });29}, 'ReadableStream with byte source: releaseLock()');30promise_test(t => {31  const rs = new ReadableStream({32    start(controller) {33      controller.enqueue(new Uint8Array([1, 2, 3]));34      controller.close();35    }36  });37  const reader = rs.getReader();38  return reader.read().then(result => {39    assert_object_equals(result, { value: new Uint8Array([1, 2, 3]), done: false });40    return reader.read();41  }).then(result => {42    assert_object_equals(result, { value: undefined, done: true });43  });44}, 'ReadableStream with byte source: read() after close()');45promise_test(t => {46  const rs = new ReadableStream({47    start(controller) {48      controller.enqueue(new Uint8Array([1, 2, 3]));49      controller.error();50    }51  });52  const reader = rs.getReader();53  return reader.read().then(result => {54    assert_object_equals(result, { value: new Uint8Array([1, 2, 3]), done: false });55    return reader.read();56  }).then(result => {57    assert_object_equals(result, { value:

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