123456789101112131415161718192021222324252627282930
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.// This module is browser compatible.
import type { Reader } from "./types.ts";
/** * Reader utility for combining multiple readers * * @deprecated (will be removed after 1.0.0) Use the {@link https://developer.mozilla.org/en-US/docs/Web/API/Streams_API | Web Streams API} instead. */export class MultiReader implements Reader {  readonly #readers: Reader[];  #currentIndex = 0;
  constructor(readers: Reader[]) {    this.#readers = [...readers];  }
  async read(p: Uint8Array): Promise<number | null> {    const r = this.#readers[this.#currentIndex];    if (!r) return null;    const result = await r.read(p);    if (result === null) {      this.#currentIndex++;      return 0;    }    return result;  }}