fix(metagen): emit current iOS SDK types

Author: DjDeveloperr

scripts/metagen.js

@@ -65,6 +65,28 @@ function getSDKPath(platform) {
   return output.stdout.trim();
 }
 
+const sdkVersionCache = new Map();
+
+function getSDKVersion(platform) {
+  const cached = sdkVersionCache.get(platform);
+  if (cached) {
+    return cached;
+  }
+
+  const output = spawnSync("xcrun", ["--sdk", platform, "--show-sdk-version"], {
+    stdio: ["ignore", "pipe", "inherit"],
+    encoding: "utf8",
+  });
+
+  if (output.status !== 0) {
+    throw new Error(`Failed to get SDK version for ${platform}`);
+  }
+
+  const version = output.stdout.trim();
+  sdkVersionCache.set(platform, version);
+  return version;
+}
+
 function sleep(ms) {
   return new Promise((resolve) => setTimeout(resolve, ms));
 }
@@ -263,25 +285,25 @@ const sdks = {
     path: getSDKPath("iphoneos"),
     frameworks: [...COMMON_FRAMEWORKS, ...IOS_FRAMEWORKS],
     targets: {
-      arm64: "arm64-apple-ios13.0",
+      arm64: `arm64-apple-ios${getSDKVersion("iphoneos")}`,
     },
     tnsTarget: "ios-arm64",
   },
   "ios-sim": {
     path: getSDKPath("iphonesimulator"),
     frameworks: [...COMMON_FRAMEWORKS, ...IOS_FRAMEWORKS],
     targets: {
-      x86_64: "x86_64-apple-ios13.0-simulator",
-      arm64: "arm64-apple-ios13.0-simulator",
+      x86_64: `x86_64-apple-ios${getSDKVersion("iphonesimulator")}-simulator`,
+      arm64: `arm64-apple-ios${getSDKVersion("iphonesimulator")}-simulator`,
     },
     tnsTarget: "ios-arm64_x86_64-simulator",
   },
   catalyst: {
     path: getSDKPath("iphoneos"),
     frameworks: [...COMMON_FRAMEWORKS, ...MACOS_FRAMEWORKS, ...IOS_FRAMEWORKS],
     targets: {
-      x86_64: "x86_64-apple-ios13.0-macabi",
-      arm64: "arm64-apple-ios13.0-macabi",
+      x86_64: `x86_64-apple-ios${getSDKVersion("iphoneos")}-macabi`,
+      arm64: `arm64-apple-ios${getSDKVersion("iphoneos")}-macabi`,
     },
     tnsTarget: "ios-arm64_x86_64-maccatalyst",
   },

test/react-native/ffi-compat/App.tsx

@@ -1225,6 +1225,38 @@ function buildReactNativeIntegrationTests(): TestCase[] {
         });
       },
     },
+    {
+      name: 'exposes current UIKit SDK tab accessory APIs when available',
+      async run() {
+        if (!NativeScript.isClassAvailable('UITabAccessory')) {
+          return;
+        }
+        await NativeScript.runOnUI(() => {
+          const contentView = g('UIView').new();
+          const accessory = g('UITabAccessory')
+            .alloc()
+            .initWithContentView(contentView);
+          assert(
+            accessory.contentView.isEqual(contentView),
+            'UITabAccessory contentView should round-trip',
+          );
+
+          const controller = g('UITabBarController').new();
+          controller.bottomAccessory = accessory;
+          assert(
+            controller.bottomAccessory.isEqual(accessory),
+            'UITabBarController.bottomAccessory should round-trip',
+          );
+
+          controller.setBottomAccessoryAnimated(null, false);
+          assertEqual(
+            controller.bottomAccessory,
+            null,
+            'UITabBarController bottom accessory should clear',
+          );
+        });
+      },
+    },
     {
       name: 'retains, releases, and disposes native helper lifetimes explicitly',
       run() {