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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
import { writeAll } from "./write_all.ts";import type { Closer, Writer } from "../types.d.ts";
function isCloser(value: unknown): value is Closer {  return typeof value === "object" && value != null && "close" in value &&    // deno-lint-ignore no-explicit-any    typeof (value as Record<string, any>)["close"] === "function";}
export interface WritableStreamFromWriterOptions {  /**   * If the `writer` is also a `Closer`, automatically close the `writer`   * when the stream is closed, aborted, or a write error occurs.   *   * @default {true}   */  autoClose?: boolean;}
/** Create a `WritableStream` from a `Writer`. */export function writableStreamFromWriter(  writer: Writer,  options: WritableStreamFromWriterOptions = {},): WritableStream<Uint8Array> {  const { autoClose = true } = options;
  return new WritableStream({    async write(chunk, controller) {      try {        await writeAll(writer, chunk);      } catch (e) {        controller.error(e);        if (isCloser(writer) && autoClose) {          writer.close();        }      }    },    close() {      if (isCloser(writer) && autoClose) {        writer.close();      }    },    abort() {      if (isCloser(writer) && autoClose) {        writer.close();      }    },  });}