How to use IsReadableStreamDisturbed method in wpt

Best JavaScript code snippet using wpt

22_body.js

Source:22_body.js

1// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.2// @ts-check3/// <reference path="../webidl/internal.d.ts" />4/// <reference path="../url/internal.d.ts" />5/// <reference path="../url/lib.deno_url.d.ts" />6/// <reference path="../web/internal.d.ts" />7/// <reference path="../file/internal.d.ts" />8/// <reference path="../file/lib.deno_file.d.ts" />9/// <reference path="./internal.d.ts" />10/// <reference path="./11_streams_types.d.ts" />11/// <reference path="./lib.deno_fetch.d.ts" />12/// <reference lib="esnext" />13"use strict";14((window) => {15  const core = window.Deno.core;16  const webidl = globalThis.__bootstrap.webidl;17  const { parseUrlEncoded } = globalThis.__bootstrap.url;18  const { parseFormData, formDataFromEntries, encodeFormData } =19    globalThis.__bootstrap.formData;20  const mimesniff = globalThis.__bootstrap.mimesniff;21  const { isReadableStreamDisturbed, errorReadableStream } =22    globalThis.__bootstrap.streams;23  class InnerBody {24    /** @type {ReadableStream<Uint8Array> | { body: Uint8Array, consumed: boolean }} */25    streamOrStatic;26    /** @type {null | Uint8Array | Blob | FormData} */27    source = null;28    /** @type {null | number} */29    length = null;30    /**31     * @param {ReadableStream<Uint8Array> | { body: Uint8Array, consumed: boolean }} stream32     */33    constructor(stream) {34      this.streamOrStatic = stream ??35        { body: new Uint8Array(), consumed: false };36    }37    get stream() {38      if (!(this.streamOrStatic instanceof ReadableStream)) {39        const { body, consumed } = this.streamOrStatic;40        this.streamOrStatic = new ReadableStream({41          start(controller) {42            controller.enqueue(body);43            controller.close();44          },45        });46        if (consumed) {47          this.streamOrStatic.cancel();48        }49      }50      return this.streamOrStatic;51    }52    /**53     * https://fetch.spec.whatwg.org/#body-unusable54     * @returns {boolean}55     */56    unusable() {57      if (this.streamOrStatic instanceof ReadableStream) {58        return this.streamOrStatic.locked ||59          isReadableStreamDisturbed(this.streamOrStatic);60      }61      return this.streamOrStatic.consumed;62    }63    /**64     * @returns {boolean}65     */66    consumed() {67      if (this.streamOrStatic instanceof ReadableStream) {68        return isReadableStreamDisturbed(this.streamOrStatic);69      }70      return this.streamOrStatic.consumed;71    }72    /**73     * https://fetch.spec.whatwg.org/#concept-body-consume-body74     * @returns {Promise<Uint8Array>}75     */76    async consume() {77      if (this.unusable()) throw new TypeError("Body already consumed.");78      if (this.streamOrStatic instanceof ReadableStream) {79        const reader = this.stream.getReader();80        /** @type {Uint8Array[]} */81        const chunks = [];82        let totalLength = 0;83        while (true) {84          const { value: chunk, done } = await reader.read();85          if (done) break;86          chunks.push(chunk);87          totalLength += chunk.byteLength;88        }89        const finalBuffer = new Uint8Array(totalLength);90        let i = 0;91        for (const chunk of chunks) {92          finalBuffer.set(chunk, i);93          i += chunk.byteLength;94        }95        return finalBuffer;96      } else {97        this.streamOrStatic.consumed = true;98        return this.streamOrStatic.body;99      }100    }101    cancel(error) {102      if (this.streamOrStatic instanceof ReadableStream) {103        this.streamOrStatic.cancel(error);104      } else {105        this.streamOrStatic.consumed = true;106      }107    }108    error(error) {109      if (this.streamOrStatic instanceof ReadableStream) {110        errorReadableStream(this.streamOrStatic, error);111      } else {112        this.streamOrStatic.consumed = true;113      }114    }115    /**116     * @returns {InnerBody}117     */118    clone() {119      const [out1, out2] = this.stream.tee();120      this.streamOrStatic = out1;121      const second = new InnerBody(out2);122      second.source = core.deserialize(core.serialize(this.source));123      second.length = this.length;124      return second;125    }126  }127  /**128   * @param {any} prototype129   * @param {symbol} bodySymbol130   * @param {symbol} mimeTypeSymbol131   * @returns {void}132   */133  function mixinBody(prototype, bodySymbol, mimeTypeSymbol) {134    function consumeBody(object) {135      if (object[bodySymbol] !== null) {136        return object[bodySymbol].consume();137      }138      return Promise.resolve(new Uint8Array());139    }140    /** @type {PropertyDescriptorMap} */141    const mixin = {142      body: {143        /**144         * @returns {ReadableStream<Uint8Array> | null}145         */146        get() {147          webidl.assertBranded(this, prototype);148          if (this[bodySymbol] === null) {149            return null;150          } else {151            return this[bodySymbol].stream;152          }153        },154        configurable: true,155        enumerable: true,156      },157      bodyUsed: {158        /**159         * @returns {boolean}160         */161        get() {162          webidl.assertBranded(this, prototype);163          if (this[bodySymbol] !== null) {164            return this[bodySymbol].consumed();165          }166          return false;167        },168        configurable: true,169        enumerable: true,170      },171      arrayBuffer: {172        /** @returns {Promise<ArrayBuffer>} */173        value: async function arrayBuffer() {174          webidl.assertBranded(this, prototype);175          const body = await consumeBody(this);176          return packageData(body, "ArrayBuffer");177        },178        writable: true,179        configurable: true,180        enumerable: true,181      },182      blob: {183        /** @returns {Promise<Blob>} */184        value: async function blob() {185          webidl.assertBranded(this, prototype);186          const body = await consumeBody(this);187          return packageData(body, "Blob", this[mimeTypeSymbol]);188        },189        writable: true,190        configurable: true,191        enumerable: true,192      },193      formData: {194        /** @returns {Promise<FormData>} */195        value: async function formData() {196          webidl.assertBranded(this, prototype);197          const body = await consumeBody(this);198          return packageData(body, "FormData", this[mimeTypeSymbol]);199        },200        writable: true,201        configurable: true,202        enumerable: true,203      },204      json: {205        /** @returns {Promise<any>} */206        value: async function json() {207          webidl.assertBranded(this, prototype);208          const body = await consumeBody(this);209          return packageData(body, "JSON");210        },211        writable: true,212        configurable: true,213        enumerable: true,214      },215      text: {216        /** @returns {Promise<string>} */217        value: async function text() {218          webidl.assertBranded(this, prototype);219          const body = await consumeBody(this);220          return packageData(body, "text");221        },222        writable: true,223        configurable: true,224        enumerable: true,225      },226    };227    return Object.defineProperties(prototype.prototype, mixin);228  }229  /**230   * https://fetch.spec.whatwg.org/#concept-body-package-data231   * @param {Uint8Array} bytes232   * @param {"ArrayBuffer" | "Blob" | "FormData" | "JSON" | "text"} type233   * @param {MimeType | null} [mimeType]234   */235  function packageData(bytes, type, mimeType) {236    switch (type) {237      case "ArrayBuffer":238        return bytes.buffer;239      case "Blob":240        return new Blob([bytes], {241          type: mimeType !== null ? mimesniff.serializeMimeType(mimeType) : "",242        });243      case "FormData": {244        if (mimeType !== null) {245          if (mimeType !== null) {246            const essence = mimesniff.essence(mimeType);247            if (essence === "multipart/form-data") {248              const boundary = mimeType.parameters.get("boundary");249              if (boundary === null) {250                throw new TypeError(251                  "Missing boundary parameter in mime type of multipart formdata.",252                );253              }254              return parseFormData(bytes, boundary);255            } else if (essence === "application/x-www-form-urlencoded") {256              const entries = parseUrlEncoded(bytes);257              return formDataFromEntries(258                entries.map((x) => ({ name: x[0], value: x[1] })),259              );260            }261          }262          throw new TypeError("Invalid form data");263        }264        throw new TypeError("Missing content type");265      }266      case "JSON":267        return JSON.parse(core.decode(bytes));268      case "text":269        return core.decode(bytes);270    }271  }272  /**273   * @param {BodyInit} object274   * @returns {{body: InnerBody, contentType: string | null}}275   */276  function extractBody(object) {277    /** @type {ReadableStream<Uint8Array> | { body: Uint8Array, consumed: boolean }} */278    let stream;279    let source = null;280    let length = null;281    let contentType = null;282    if (object instanceof Blob) {283      stream = object.stream();284      source = object;285      length = object.size;286      if (object.type.length !== 0) {287        contentType = object.type;288      }289    } else if (ArrayBuffer.isView(object) || object instanceof ArrayBuffer) {290      const u8 = ArrayBuffer.isView(object)291        ? new Uint8Array(292          object.buffer,293          object.byteOffset,294          object.byteLength,295        )296        : new Uint8Array(object);297      const copy = u8.slice(0, u8.byteLength);298      source = copy;299    } else if (object instanceof FormData) {300      const res = encodeFormData(object);301      stream = { body: res.body, consumed: false };302      source = object;303      length = res.body.byteLength;304      contentType = res.contentType;305    } else if (object instanceof URLSearchParams) {306      source = core.encode(object.toString());307      contentType = "application/x-www-form-urlencoded;charset=UTF-8";308    } else if (typeof object === "string") {309      source = core.encode(object);310      contentType = "text/plain;charset=UTF-8";311    } else if (object instanceof ReadableStream) {312      stream = object;313      if (object.locked || isReadableStreamDisturbed(object)) {314        throw new TypeError("ReadableStream is locked or disturbed");315      }316    }317    if (source instanceof Uint8Array) {318      stream = { body: source, consumed: false };319      length = source.byteLength;320    }321    const body = new InnerBody(stream);322    body.source = source;323    body.length = length;324    return { body, contentType };325  }326  webidl.converters["BodyInit"] = (V, opts) => {327    // Union for (ReadableStream or Blob or ArrayBufferView or ArrayBuffer or FormData or URLSearchParams or USVString)328    if (V instanceof ReadableStream) {329      // TODO(lucacasonato): ReadableStream is not branded330      return V;331    } else if (V instanceof Blob) {332      return webidl.converters["Blob"](V, opts);333    } else if (V instanceof FormData) {334      return webidl.converters["FormData"](V, opts);335    } else if (V instanceof URLSearchParams) {336      // TODO(lucacasonato): URLSearchParams is not branded337      return V;338    }339    if (typeof V === "object") {340      if (V instanceof ArrayBuffer || V instanceof SharedArrayBuffer) {341        return webidl.converters["ArrayBuffer"](V, opts);342      }343      if (ArrayBuffer.isView(V)) {344        return webidl.converters["ArrayBufferView"](V, opts);345      }346    }347    return webidl.converters["USVString"](V, opts);348  };349  webidl.converters["BodyInit?"] = webidl.createNullableConverter(350    webidl.converters["BodyInit"],351  );352  window.__bootstrap.fetchBody = { mixinBody, InnerBody, extractBody };...

Using AI Code Generation

1const assert = require('assert');2const { ReadableStream, IsReadableStreamDisturbed } = require('stream/web');3const rs = new ReadableStream({4  start(controller) {5    controller.enqueue('a');6    controller.enqueue('b');7    controller.enqueue('c');8  }9});10const reader = rs.getReader();11assert.strictEqual(IsReadableStreamDisturbed(rs), false);12assert.strictEqual(IsReadableStreamDisturbed(reader), false);13reader.read().then(() => {14  assert.strictEqual(IsReadableStreamDisturbed(rs), true);15  assert.strictEqual(IsReadableStreamDisturbed(reader), true);16  console.log('done');17});

Using AI Code Generation

1const { ReadableStream } = require('stream/web');2const rs = new ReadableStream({3  start(controller) {4    controller.enqueue('a');5    controller.enqueue('b');6    controller.close();7  }8});9const { ReadableStream, CountQueuingStrategy } = require('stream/web');10const rs = new ReadableStream({11  start(controller) {12    controller.enqueue('a');13    controller.enqueue('b');14    controller.close();15  }16}, new CountQueuingStrategy({ highWaterMark: 1 }));17const { ReadableStream, CountQueuingStrategy } = require('stream/web');18const rs = new ReadableStream({19  start(controller) {20    controller.enqueue('a');21    controller.enqueue('b');22    controller.close();23  }24}, new CountQueuingStrategy({ highWaterMark: 1 }));25const reader = rs.getReader();26const { ReadableStream, CountQueuingStrategy } = require('stream/web');27const rs = new ReadableStream({28  start(controller) {29    controller.enqueue('a');30    controller.enqueue('b');31    controller.close();32  }33}, new CountQueuingStrategy({ highWaterMark: 1 }));34const reader = rs.getReader();35const { ReadableStream, CountQueuingStrategy } = require('stream/web');36const rs = new ReadableStream({37  start(controller) {38    controller.enqueue('a');39    controller.enqueue('b

Using AI Code Generation

1const { IsReadableStreamDisturbed } = require('stream/web');2const { ReadableStream } = require('stream/web');3const rs = new ReadableStream({4  start(controller) {5    controller.enqueue('a');6    controller.enqueue('b');7    controller.enqueue('c');8  },9  pull(controller) {10    console.log(controller.desiredSize);11    controller.close();12  },13});14const reader = rs.getReader({ mode: 'byob' });15const read = async () => {16  const { value, done } = await reader.read(new Uint8Array(4));17  console.log(value);18  console.log(done);19}20read();21console.log(IsReadableStreamDisturbed(rs));22> const { IsReadableStreamDisturbed } = require('stream/web');23> const { ReadableStream } = require('stream/web');24> const rs = new ReadableStream({25>   start(controller) {26>     controller.enqueue('a');27>     controller.enqueue('b');28>     controller.enqueue('c');29>   },30>   pull(controller) {31>     console.log(controller.desiredSize);32>     controller.close();33>   },34> });35> const reader = rs.getReader({ mode: 'byob' });36> const read = async () => {37>   const { value, done } = await reader.read(new Uint8Array(4));38>   console.log(value);39>   console.log(done);40> }41> read();42> console.log(IsReadableStreamDisturbed(rs));43Uint8Array(3) [ 97, 98, 99 ]

Using AI Code Generation

1const assert = require('assert');2const { ReadableStream } = require('stream/web');3const { IsReadableStreamDisturbed } = require('internal/webstreams/readablestream');4const readable = new ReadableStream({5  start(c) {6    c.enqueue('a');7    c.enqueue('b');8    c.close();9  }10});11readable.getReader().read().then(console.log);12readable.getReader().read().then(console.log);13assert.strictEqual(IsReadableStreamDisturbed(readable), true);14const assert = require('assert');15const { ReadableStream } = require('stream/web');16const { IsReadableStreamLocked } = require('internal/webstreams/readablestream');17const readable = new ReadableStream({18  start(c) {19    c.enqueue('a');20    c.enqueue('b');21    c.close();22  }23});24assert.strictEqual(IsReadableStreamLocked(readable), false);25const reader = readable.getReader();26assert.strictEqual(IsReadableStreamLocked(readable), true);27reader.releaseLock();28assert.strictEqual(IsReadableStreamLocked(readable), false);29const assert = require('assert');30const { ReadableStream, isReadableStreamDefaultReader } = require('stream/web');31const { IsReadableStreamDefaultReader } = require('internal/webstreams/readablestream');32const readable = new ReadableStream({33  start(c) {34    c.enqueue('a');35    c.enqueue('b');36    c.close();37  }38});39const reader = readable.getReader();40assert.strictEqual(isReadableStreamDefaultReader(reader), true);41assert.strictEqual(IsReadableStreamDefaultReader(reader), true);42const assert = require('assert');43const { ReadableStream, isReadableStreamBYOBReader } = require('stream/web');44const { IsReadableStreamBYOBReader } = require('internal/webstreams/readablestream');45const readable = new ReadableStream({46  start(c) {47    const buffer = Buffer.from('abc');48    c.enqueue(buffer);49    c.close();50  }51});52const reader = readable.getReader({ mode: 'byob' });53assert.strictEqual(isReadableStreamBYOBReader(reader), true);54assert.strictEqual(IsReadableStreamBYOBReader(reader), true);

Using AI Code Generation

1const assert = require("assert");2const { IsReadableStreamDisturbed } = require("./disturbed.js");3const { ReadableStream } = require("stream/web");4const rs = new ReadableStream();5assert.strictEqual(IsReadableStreamDisturbed(rs), false);6rs.cancel();7assert.strictEqual(IsReadableStreamDisturbed(rs), true);8const {9} = require("stream/web");10const {11} = require("internal/webstreams/readablestream");12module.exports.IsReadableStreamDisturbed = function IsReadableStreamDisturbed(stream) {13  if (stream === undefined) {14    return false;15  }16  return stream[kState].disturbed;17};

Using AI Code Generation

1const { IsReadableStreamDisturbed } = require('stream/web');2const { ReadableStream } = require('stream/web');3const rs = new ReadableStream();4console.log(IsReadableStreamDisturbed(rs));5const { IsReadableStreamDisturbed } = require('web-streams-polyfill/ponyfill');6const { ReadableStream } = require('web-streams-polyfill/ponyfill');7const rs = new ReadableStream();8console.log(IsReadableStreamDisturbed(rs));9const { Readable } = require('stream');10const rs = new Readable();11console.log(rs.readableEnded);

Using AI Code Generation

1var rs = new ReadableStream({2    start(controller) {3        controller.enqueue("a");4        controller.close();5    }6});7var reader = rs.getReader();8var result = reader.read();9result.then(function(result) {10    console.log(result);11    var isDisturbed = rs.isDisturbed;12    console.log(isDisturbed);13});14var rs = new ReadableStream({15    start(controller) {16        controller.enqueue("a");17        controller.close();18    }19});20var reader = rs.getReader();21var result = reader.read();22result.then(function(result) {23    console.log(result);24    var isDisturbed = rs.isDisturbed;25    console.log(isDisturbed);26});27var rs = new ReadableStream({28    start(controller) {29        controller.enqueue("a");30        controller.close();31    }32});33var reader = rs.getReader();34var result = reader.read();35result.then(function(result) {36    console.log(result);37    var isDisturbed = rs.isDisturbed;38    console.log(isDisturbed);39});40var rs = new ReadableStream({41    start(controller) {42        controller.enqueue("a");43        controller.close();44    }45});46var reader = rs.getReader();47var result = reader.read();48result.then(function(result) {49    console.log(result);50    var isDisturbed = rs.isDisturbed;51    console.log(isDisturbed);52});53var rs = new ReadableStream({54    start(controller) {55        controller.enqueue("a");56        controller.close();57    }58});59var reader = rs.getReader();60var result = reader.read();61result.then(function(result) {62    console.log(result);63    var isDisturbed = rs.isDisturbed;64    console.log(isDisturbed);65});66var rs = new ReadableStream({67    start(controller) {68        controller.enqueue("a");69        controller.close();70    }71});72var reader = rs.getReader();73var result = reader.read();74result.then(function(result) {75    console.log(result);76    var isDisturbed = rs.isDisturbed;77    console.log(isDisturbed

Using AI Code Generation

1const { ReadableStream } = require('stream/web');2const rs = new ReadableStream();3rs.cancel();4console.log(rs.locked);5console.log(rs.getReader().closed);6const { ReadableStream } = require('stream/web');7const rs = new ReadableStream();8console.log(rs.locked);9console.log(rs.getReader().closed);10const { ReadableStream } = require('stream/web');11const rs = new ReadableStream();12rs.getReader();13console.log(rs.locked);14console.log(rs.getReader().closed);

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