fix(ext/node): export geteuid from node:process (#23840)

Fixes #23827

ext/node/polyfills/process.ts

@@ -301,6 +301,16 @@ export function kill(pid: number, sig: string | number = "SIGTERM") {
   return true;
 }
 
+let getgid, getuid, geteuid;
+
+if (!isWindows) {
+  getgid = () => Deno.gid();
+  getuid = () => Deno.uid();
+  geteuid = () => op_geteuid();
+}
+
+export { geteuid, getgid, getuid };
+
 // deno-lint-ignore no-explicit-any
 function uncaughtExceptionHandler(err: any, origin: string) {
   // The origin parameter can be 'unhandledRejection' or 'uncaughtException'
@@ -638,19 +648,13 @@ class Process extends EventEmitter {
   }
 
   /** This method is removed on Windows */
-  getgid?(): number {
-    return Deno.gid()!;
-  }
+  getgid = getgid;
 
   /** This method is removed on Windows */
-  getuid?(): number {
-    return Deno.uid()!;
-  }
+  getuid = getuid;
 
   /** This method is removed on Windows */
-  geteuid?(): number {
-    return op_geteuid();
-  }
+  geteuid = geteuid;
 
   // TODO(kt3k): Implement this when we added -e option to node compat mode
   _eval: string | undefined = undefined;

tests/unit_node/process_test.ts

@@ -6,6 +6,7 @@ import process, {
   argv,
   argv0 as importedArgv0,
   env,
+  geteuid,
   pid as importedPid,
   platform as importedPlatform,
 } from "node:process";
@@ -879,6 +880,7 @@ Deno.test("process.geteuid", () => {
   if (Deno.build.os === "windows") {
     assertEquals(process.geteuid, undefined);
   } else {
+    assert(geteuid);
     assert(typeof process.geteuid?.() === "number");
   }
 });