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refactor: move FileReader to op_crates/web (#7554)
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38196f7850
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6 changed files with 80 additions and 65 deletions
42
cli/dts/lib.deno.shared_globals.d.ts
vendored
42
cli/dts/lib.deno.shared_globals.d.ts
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@ -240,48 +240,6 @@ interface DOMStringList {
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type BufferSource = ArrayBufferView | ArrayBuffer;
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interface FileReaderEventMap {
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"abort": ProgressEvent<FileReader>;
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"error": ProgressEvent<FileReader>;
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"load": ProgressEvent<FileReader>;
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"loadend": ProgressEvent<FileReader>;
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"loadstart": ProgressEvent<FileReader>;
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"progress": ProgressEvent<FileReader>;
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}
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/** Lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read. */
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interface FileReader extends EventTarget {
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readonly error: DOMException | null;
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onabort: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onerror: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onload: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onloadend: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onloadstart: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onprogress: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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readonly readyState: number;
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readonly result: string | ArrayBuffer | null;
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abort(): void;
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readAsArrayBuffer(blob: Blob): void;
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readAsBinaryString(blob: Blob): void;
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readAsDataURL(blob: Blob): void;
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readAsText(blob: Blob, encoding?: string): void;
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readonly DONE: number;
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readonly EMPTY: number;
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readonly LOADING: number;
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addEventListener<K extends keyof FileReaderEventMap>(type: K, listener: (this: FileReader, ev: FileReaderEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
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addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
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removeEventListener<K extends keyof FileReaderEventMap>(type: K, listener: (this: FileReader, ev: FileReaderEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
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removeEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | EventListenerOptions): void;
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}
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declare var FileReader: {
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prototype: FileReader;
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new(): FileReader;
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readonly DONE: number;
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readonly EMPTY: number;
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readonly LOADING: number;
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};
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declare const isConsoleInstance: unique symbol;
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declare class Console {
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@ -23,7 +23,6 @@ delete Object.prototype.__proto__;
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const url = window.__bootstrap.url;
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const headers = window.__bootstrap.headers;
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const streams = window.__bootstrap.streams;
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const progressEvent = window.__bootstrap.progressEvent;
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const fileReader = window.__bootstrap.fileReader;
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const webSocket = window.__bootstrap.webSocket;
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const fetch = window.__bootstrap.fetch;
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@ -215,7 +214,7 @@ delete Object.prototype.__proto__;
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PerformanceEntry: util.nonEnumerable(performance.PerformanceEntry),
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PerformanceMark: util.nonEnumerable(performance.PerformanceMark),
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PerformanceMeasure: util.nonEnumerable(performance.PerformanceMeasure),
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ProgressEvent: util.nonEnumerable(progressEvent.ProgressEvent),
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ProgressEvent: util.nonEnumerable(ProgressEvent),
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ReadableStream: util.nonEnumerable(streams.ReadableStream),
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Request: util.nonEnumerable(fetch.Request),
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Response: util.nonEnumerable(fetch.Response),
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@ -1083,12 +1083,25 @@
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enumerable: true,
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});
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// ProgressEvent could also be used in other DOM progress event emits.
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// Current use is for FileReader.
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class ProgressEvent extends Event {
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constructor(type, eventInitDict = {}) {
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super(type, eventInitDict);
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this.lengthComputable = eventInitDict?.lengthComputable ?? false;
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this.loaded = eventInitDict?.loaded ?? 0;
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this.total = eventInitDict?.total ?? 0;
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}
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}
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window.Event = Event;
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window.EventTarget = EventTarget;
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window.ErrorEvent = ErrorEvent;
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window.CloseEvent = CloseEvent;
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window.MessageEvent = MessageEvent;
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window.CustomEvent = CustomEvent;
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window.ProgressEvent = ProgressEvent;
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window.dispatchEvent = EventTarget.prototype.dispatchEvent;
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window.addEventListener = EventTarget.prototype.addEventListener;
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window.removeEventListener = EventTarget.prototype.removeEventListener;
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@ -2,22 +2,6 @@
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((window) => {
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const base64 = window.__bootstrap.base64;
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const setTimeout = window.__bootstrap.timers.setTimeout;
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// ProgressEvent could also be used in other DOM progress event emits.
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// Current use is for FileReader.
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class ProgressEvent extends Event {
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constructor(type, eventInitDict = {}) {
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super(type, eventInitDict);
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this.lengthComputable = eventInitDict?.lengthComputable ?? false;
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this.loaded = eventInitDict?.loaded ?? 0;
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this.total = eventInitDict?.total ?? 0;
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}
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}
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window.__bootstrap.progressEvent = {
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ProgressEvent,
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};
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async function readOperation(fr, blob, readtype) {
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// Implementation from https://w3c.github.io/FileAPI/ notes
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@ -63,14 +47,14 @@
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// 2. If chunkPromise is fulfilled, and isFirstChunk is true, queue a task to fire a progress event called loadstart at fr.
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if (isFirstChunk) {
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setTimeout(() => {
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queueMicrotask(() => {
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// fire a progress event for loadstart
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const ev = new ProgressEvent("loadstart", {});
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fr.dispatchEvent(ev);
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if (fr.onloadstart !== null) {
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fr.onloadstart(ev);
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}
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}, 0);
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});
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}
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// 3. Set isFirstChunk to false.
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isFirstChunk = false;
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@ -95,7 +79,7 @@
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chunkPromise = reader.read();
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} // 5 Otherwise, if chunkPromise is fulfilled with an object whose done property is true, queue a task to run the following steps and abort this algorithm:
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else if (chunk.done === true) {
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setTimeout(() => {
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queueMicrotask(() => {
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if (fr.aborting) {
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return;
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}
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@ -152,7 +136,7 @@
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fr.onloadend(ev);
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}
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}
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}, 0);
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});
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break;
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}
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62
op_crates/web/lib.deno_web.d.ts
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62
op_crates/web/lib.deno_web.d.ts
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@ -1,6 +1,6 @@
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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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/* eslint-disable @typescript-eslint/no-explicit-any */
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/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, no-var */
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/// <reference no-default-lib="true" />
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/// <reference lib="esnext" />
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@ -235,3 +235,63 @@ declare const AbortSignal: {
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prototype: AbortSignal;
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new (): AbortSignal;
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};
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interface FileReaderEventMap {
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"abort": ProgressEvent<FileReader>;
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"error": ProgressEvent<FileReader>;
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"load": ProgressEvent<FileReader>;
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"loadend": ProgressEvent<FileReader>;
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"loadstart": ProgressEvent<FileReader>;
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"progress": ProgressEvent<FileReader>;
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}
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/** Lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read. */
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interface FileReader extends EventTarget {
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readonly error: DOMException | null;
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onabort: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onerror: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onload: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onloadend: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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onloadstart:
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| ((this: FileReader, ev: ProgressEvent<FileReader>) => any)
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| null;
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onprogress: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
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readonly readyState: number;
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readonly result: string | ArrayBuffer | null;
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abort(): void;
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readAsArrayBuffer(blob: Blob): void;
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readAsBinaryString(blob: Blob): void;
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readAsDataURL(blob: Blob): void;
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readAsText(blob: Blob, encoding?: string): void;
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readonly DONE: number;
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readonly EMPTY: number;
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readonly LOADING: number;
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addEventListener<K extends keyof FileReaderEventMap>(
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type: K,
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listener: (this: FileReader, ev: FileReaderEventMap[K]) => any,
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options?: boolean | AddEventListenerOptions,
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): void;
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addEventListener(
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type: string,
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listener: EventListenerOrEventListenerObject,
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options?: boolean | AddEventListenerOptions,
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): void;
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removeEventListener<K extends keyof FileReaderEventMap>(
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type: K,
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listener: (this: FileReader, ev: FileReaderEventMap[K]) => any,
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options?: boolean | EventListenerOptions,
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): void;
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removeEventListener(
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type: string,
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listener: EventListenerOrEventListenerObject,
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options?: boolean | EventListenerOptions,
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): void;
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}
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declare var FileReader: {
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prototype: FileReader;
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new (): FileReader;
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readonly DONE: number;
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readonly EMPTY: number;
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readonly LOADING: number;
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};
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@ -46,6 +46,7 @@ pub fn init(isolate: &mut JsRuntime) {
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manifest_dir.join("02_abort_signal.js"),
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manifest_dir.join("08_text_encoding.js"),
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manifest_dir.join("11_url.js"),
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manifest_dir.join("21_filereader.js"),
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];
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// TODO(nayeemrmn): https://github.com/rust-lang/cargo/issues/3946 to get the
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// workspace root.
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