feat(ext/node): embed std/node into the snapshot (#17724)

This commit moves "deno_std/node" in "ext/node" crate. The code is
transpiled and snapshotted during the build process.

During the first pass a minimal amount of work was done to create the
snapshot, a lot of code in "ext/node" depends on presence of "Deno"
global. This code will be gradually fixed in the follow up PRs to migrate
it to import relevant APIs from "internal:" modules.

Currently the code from snapshot is not used in any way, and all
Node/npm compatibility still uses code from 
"https://deno.land/std/node" (or from the location specified by 
"DENO_NODE_COMPAT_URL"). This will also be handled in a follow 
up PRs.

---------

Co-authored-by: crowlkats <crowlkats@toaxl.com>
Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>
Co-authored-by: Yoshiya Hinosawa <stibium121@gmail.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/ext/node/polyfills/_fs/_fs_fstat.ts b/ext/node/polyfills/_fs/_fs_fstat.ts
new file mode 100644
index 000000000..ab9cbead4
--- /dev/null
+++ b/ext/node/polyfills/_fs/_fs_fstat.ts
@@ -0,0 +1,60 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+import {
+  BigIntStats,
+  CFISBIS,
+  statCallback,
+  statCallbackBigInt,
+  statOptions,
+  Stats,
+} from "internal:deno_node/polyfills/_fs/_fs_stat.ts";
+
+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");
+
+  Deno.fstat(fd).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 = Deno.fstatSync(fd);
+  return CFISBIS(origin, options?.bigint || false);
+}