fix(compiler,vxrn): run codegen on React Native's Flow .js specs

packages/compiler/.depcheckrc

@@ -1,6 +1,7 @@
 ignores:
   - "babel-plugin-react-compiler"
   - "@babel/plugin-transform-destructuring"
+  - "@babel/plugin-transform-flow-strip-types"
   - "@react-native/babel-plugin-codegen"
   - "@babel/plugin-transform-react-jsx"
   - "@babel/plugin-transform-regenerator"

packages/compiler/package.json

@@ -31,6 +31,7 @@
   "dependencies": {
     "@babel/core": "^7.28.5",
     "@babel/plugin-transform-destructuring": "^7.28.5",
+    "@babel/plugin-transform-flow-strip-types": "^7.27.1",
     "@babel/plugin-transform-react-jsx": "^7.27.1",
     "@babel/plugin-transform-regenerator": "^7.28.4",
     "@react-native/babel-plugin-codegen": "^0.83.0",

packages/compiler/src/transformBabel.ts

@@ -104,6 +104,17 @@ export async function transformBabel(
         : '',
       ...(options.presets || []),
     ].filter(Boolean),
+    // Non-TS files use React Native's Flow dialect — RN's own component specs are
+    // Flow `.js` (`import type`, `codegenNativeComponent<T>(…)`, `(expr: Type)` casts).
+    // Enable Flow syntax parsing + stripping, mirroring the TypeScript preset above
+    // (`@react-native/babel-preset` does the same: TS → preset-typescript, JS → this
+    // plugin). Without it babel can't parse Flow, so plugins like
+    // @react-native/babel-plugin-codegen silently fail on RN specs and the runtime
+    // "Codegen didn't run" warning fires. TS path is byte-identical (empty slice).
+    plugins: [
+      ...(options.plugins || []),
+      ...(isTS ? [] : ['@babel/plugin-transform-flow-strip-types']),
+    ],
   }
 
   try {

packages/vxrn/src/utils/createNativeDevEngine.ts

@@ -195,15 +195,20 @@ function getNativePlugins(
     cssStubPlugin(),
     // handle import.meta.glob (used by One's route system)
     viteImportGlobPlugin({ root }),
-    // strip Flow types from react-native and @react-native packages
+    // @vxrn/compiler babel transforms: reanimated worklets, async generators,
+    // react-native codegen, react compiler — same pipeline as metro. Runs BEFORE
+    // flowStripPlugin so react-native's Flow `.js` specs reach codegen with their
+    // type argument intact — stripping Flow first would erase it (which is why the
+    // codegen "didn't run for <Component>" warning fired).
+    vxrnCompilerPlugin(platform, dev),
+    // strip Flow from any react-native / @react-native `.js` the compiler didn't
+    // handle — the guaranteed safety net before rolldown's oxc core parse (which
+    // can't parse Flow). Now downstream of the compiler, so codegen sees the types.
     flowStripPlugin(),
     // guard undefined native methods in NativeAnimatedHelper
     nativeAnimatedGuardPlugin(),
     // handle asset imports (.png, .jpg, .ttf, etc.)
     assetPlugin({ root, platform, assetsDest }),
-    // @vxrn/compiler babel transforms: reanimated worklets, async generators,
-    // react-native codegen, react compiler — same pipeline as metro
-    vxrnCompilerPlugin(platform, dev),
     // hermes compat: transform class properties and private fields
     hermesCompatSWCPlugin(dev),
   ]