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denoland-deno/ext/node/polyfills/_fs/_fs_fstat.ts
Trevor Manz 6b7e4c331b
fix(ext/node): add fs.promises.fstat and FileHandle#stat (#26719)
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>
2024-11-25 15:02:38 +09:00

86 lines
2.2 KiB
TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// TODO(petamoriken): enable prefer-primordials for node polyfills
// deno-lint-ignore-file prefer-primordials
import {
BigIntStats,
CFISBIS,
statCallback,
statCallbackBigInt,
statOptions,
Stats,
} from "ext:deno_node/_fs/_fs_stat.ts";
import { FsFile } from "ext:deno_fs/30_fs.js";
export function fstat(fd: number, callback: statCallback): void;
export function fstat(
fd: number,
options: { bigint: false },
callback: statCallback,
): void;
export function fstat(
fd: number,
options: { bigint: true },
callback: statCallbackBigInt,
): void;
export function fstat(
fd: number,
optionsOrCallback: statCallback | statCallbackBigInt | statOptions,
maybeCallback?: statCallback | statCallbackBigInt,
) {
const callback =
(typeof optionsOrCallback === "function"
? optionsOrCallback
: maybeCallback) as (
...args: [Error] | [null, BigIntStats | Stats]
) => void;
const options = typeof optionsOrCallback === "object"
? optionsOrCallback
: { bigint: false };
if (!callback) throw new Error("No callback function supplied");
new FsFile(fd, Symbol.for("Deno.internal.FsFile")).stat().then(
(stat) => callback(null, CFISBIS(stat, options.bigint)),
(err) => callback(err),
);
}
export function fstatSync(fd: number): Stats;
export function fstatSync(
fd: number,
options: { bigint: false },
): Stats;
export function fstatSync(
fd: number,
options: { bigint: true },
): BigIntStats;
export function fstatSync(
fd: number,
options?: statOptions,
): Stats | BigIntStats {
const origin = new FsFile(fd, Symbol.for("Deno.internal.FsFile")).statSync();
return CFISBIS(origin, options?.bigint || false);
}
export function fstatPromise(fd: number): Promise<Stats>;
export function fstatPromise(
fd: number,
options: { bigint: false },
): Promise<Stats>;
export function fstatPromise(
fd: number,
options: { bigint: true },
): Promise<BigIntStats>;
export function fstatPromise(
fd: number,
options?: statOptions,
): Stats | BigIntStats {
return new Promise((resolve, reject) => {
fstat(fd, options, (err, stats) => {
if (err) reject(err);
else resolve(stats);
});
});
}