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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.import { Encodings } from "../_utils.ts";import { fromFileUrl } from "../path.ts";import { Buffer } from "../buffer.ts";import { writeAllSync } from "../../streams/conversion.ts";import {  CallbackWithError,  checkEncoding,  getEncoding,  getOpenOptions,  isFileOptions,  WriteFileOptions,} from "./_fs_common.ts";import { isWindows } from "../../_util/os.ts";import { AbortError, denoErrorToNodeError } from "../internal/errors.ts";import {  showStringCoercionDeprecation,  validateStringAfterArrayBufferView,} from "../internal/fs/utils.mjs";import { promisify } from "../internal/util.mjs";
export function writeFile(  pathOrRid: string | number | URL,  // deno-lint-ignore ban-types  data: string | Uint8Array | Object,  optOrCallback: Encodings | CallbackWithError | WriteFileOptions | undefined,  callback?: CallbackWithError,) {  const callbackFn: CallbackWithError | undefined =    optOrCallback instanceof Function ? optOrCallback : callback;  const options: Encodings | WriteFileOptions | undefined =    optOrCallback instanceof Function ? undefined : optOrCallback;
  if (!callbackFn) {    throw new TypeError("Callback must be a function.");  }
  pathOrRid = pathOrRid instanceof URL ? fromFileUrl(pathOrRid) : pathOrRid;
  const flag: string | undefined = isFileOptions(options)    ? options.flag    : undefined;
  const mode: number | undefined = isFileOptions(options)    ? options.mode    : undefined;
  const encoding = checkEncoding(getEncoding(options)) || "utf8";  const openOptions = getOpenOptions(flag || "w");
  if (!ArrayBuffer.isView(data)) {    validateStringAfterArrayBufferView(data, "data");    if (typeof data !== "string") {      showStringCoercionDeprecation();    }    data = Buffer.from(String(data), encoding);  }
  const isRid = typeof pathOrRid === "number";  let file;
  let error: Error | null = null;  (async () => {    try {      file = isRid        ? new Deno.FsFile(pathOrRid as number)        : await Deno.open(pathOrRid as string, openOptions);
      // ignore mode because it's not supported on windows      // TODO: remove `!isWindows` when `Deno.chmod` is supported      if (!isRid && mode && !isWindows) {        await Deno.chmod(pathOrRid as string, mode);      }
      const signal: AbortSignal | undefined = isFileOptions(options)        ? options.signal        : undefined;      await writeAll(file, data as Uint8Array, { signal });    } catch (e) {      error = e instanceof Error        ? denoErrorToNodeError(e, { syscall: "write" })        : new Error("[non-error thrown]");    } finally {      // Make sure to close resource      if (!isRid && file) file.close();      callbackFn(error);    }  })();}
export const writeFilePromise = promisify(writeFile) as (  pathOrRid: string | number | URL,  // deno-lint-ignore ban-types  data: string | Uint8Array | Object,  options?: Encodings | WriteFileOptions,) => Promise<void>;
export function writeFileSync(  pathOrRid: string | number | URL,  // deno-lint-ignore ban-types  data: string | Uint8Array | Object,  options?: Encodings | WriteFileOptions,) {  pathOrRid = pathOrRid instanceof URL ? fromFileUrl(pathOrRid) : pathOrRid;
  const flag: string | undefined = isFileOptions(options)    ? options.flag    : undefined;
  const mode: number | undefined = isFileOptions(options)    ? options.mode    : undefined;
  const encoding = checkEncoding(getEncoding(options)) || "utf8";  const openOptions = getOpenOptions(flag || "w");
  if (!ArrayBuffer.isView(data)) {    validateStringAfterArrayBufferView(data, "data");    if (typeof data !== "string") {      showStringCoercionDeprecation();    }    data = Buffer.from(String(data), encoding);  }
  const isRid = typeof pathOrRid === "number";  let file;
  let error: Error | null = null;  try {    file = isRid      ? new Deno.FsFile(pathOrRid as number)      : Deno.openSync(pathOrRid as string, openOptions);
    // ignore mode because it's not supported on windows    // TODO: remove `!isWindows` when `Deno.chmod` is supported    if (!isRid && mode && !isWindows) {      Deno.chmodSync(pathOrRid as string, mode);    }
    writeAllSync(file, data as Uint8Array);  } catch (e) {    error = e instanceof Error      ? denoErrorToNodeError(e, { syscall: "write" })      : new Error("[non-error thrown]");  } finally {    // Make sure to close resource    if (!isRid && file) file.close();  }
  if (error) throw error;}
interface WriteAllOptions {  offset?: number;  length?: number;  signal?: AbortSignal;}async function writeAll(  w: Deno.Writer,  arr: Uint8Array,  options: WriteAllOptions = {},) {  const { offset = 0, length = arr.byteLength, signal } = options;  checkAborted(signal);
  const written = await w.write(arr.subarray(offset, offset + length));
  if (written === length) {    return;  }
  await writeAll(w, arr, {    offset: offset + written,    length: length - written,    signal,  });}
function checkAborted(signal?: AbortSignal) {  if (signal?.aborted) {    throw new AbortError();  }}