fix(ext/node): implement os.machine (#21751)

2 files changed, 23 insertions, 0 deletions

diff --git a/cli/tests/unit_node/os_test.ts b/cli/tests/unit_node/os_test.ts
index 4df53534a..f4da8d030 100644
--- a/cli/tests/unit_node/os_test.ts
+++ b/cli/tests/unit_node/os_test.ts
@@ -30,6 +30,17 @@ Deno.test({
 });
 
 Deno.test({
+  name: "os machine (arch)",
+  fn() {
+    if (Deno.build.arch == "aarch64") {
+      assertEquals(os.machine(), "arm64");
+    } else {
+      assertEquals(os.machine(), Deno.build.arch);
+    }
+  },
+});
+
+Deno.test({
   name: "home directory is a string",
   fn() {
     assertEquals(typeof os.homedir(), "string");
diff --git a/ext/node/polyfills/os.ts b/ext/node/polyfills/os.ts
index 83e56e9f4..af3e69d64 100644
--- a/ext/node/polyfills/os.ts
+++ b/ext/node/polyfills/os.ts
@@ -129,6 +129,8 @@ export function arch(): string {
 (type as any)[Symbol.toPrimitive] = (): string => type();
 // deno-lint-ignore no-explicit-any
 (uptime as any)[Symbol.toPrimitive] = (): number => uptime();
+// deno-lint-ignore no-explicit-any
+(machine as any)[Symbol.toPrimitive] = (): string => machine();
 
 export function cpus(): CPUCoreInfo[] {
   return ops.op_cpus();
@@ -247,6 +249,15 @@ export function version(): string {
   return Deno.osRelease();
 }
 
+/** Returns the machine type as a string */
+export function machine(): string {
+  if (Deno.build.arch == "aarch64") {
+    return "arm64";
+  }
+
+  return Deno.build.arch;
+}
+
 /** Not yet implemented */
 export function setPriority(pid: number, priority?: number) {
   /* The node API has the 'pid' as the first parameter and as optional.
@@ -373,6 +384,7 @@ export default {
   hostname,
   loadavg,
   networkInterfaces,
+  machine,
   platform,
   release,
   setPriority,