Rust support via ferric 🦀

apps/test-app/App.tsx

@@ -1,8 +1,11 @@
 import React from "react";
 import { StyleSheet, Text, View, Button } from "react-native";
 
+/* eslint-disable @typescript-eslint/no-require-imports -- We're using require to defer crashes */
+
 // import { requireNodeAddon } from "react-native-node-api-modules";
 import nodeAddonExamples from "react-native-node-addon-examples";
+// import * as ferricExample from "ferric-example";
 
 function App(): React.JSX.Element {
   return (
@@ -20,6 +23,15 @@ function App(): React.JSX.Element {
           ))}
         </View>
       ))}
+      <View key="ferric-example" style={styles.suite}>
+        <Text>ferric-example</Text>
+        <Button
+          title={"Ferric Example: sum(1, 3)"}
+          onPress={() =>
+            console.log("1+3 = " + require("ferric-example").sum(1, 3))
+          }
+        />
+      </View>
     </View>
   );
 }

apps/test-app/package.json

@@ -21,6 +21,7 @@
     "@react-native/typescript-config": "0.79.0",
     "@rnx-kit/metro-config": "^2.0.1",
     "@types/react": "^19.0.0",
+    "ferric-example": "^0.1.0",
     "react": "19.0.0",
     "react-native": "0.79.1",
     "react-native-node-addon-examples": "*",

packages/ferric-example/.gitignore

@@ -0,0 +1,9 @@
+/target
+Cargo.lock
+
+/*.xcframework/
+/*.android.node/
+
+# Generated files
+/libferric_example.d.ts
+/libferric_example.js

packages/ferric-example/Cargo.toml

@@ -0,0 +1,25 @@
+[package]
+name = "ferric-example"
+version = "1.0.0"
+edition = "2021"
+license = "MIT"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies.napi]
+version = "2"
+default-features = false
+# see https://nodejs.org/api/n-api.html#node-api-version-matrix
+features = ["napi3"]
+
+[dependencies.napi-derive]
+version = "2"
+features = ["type-def"]
+
+[build-dependencies]
+napi-build = "2"
+
+[profile.release]
+lto = true
+strip = "symbols"

packages/ferric-example/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+  napi_build::setup();
+}

packages/ferric-example/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "ferric-example",
+  "version": "0.1.0",
+  "main": "libferric_example.js",
+  "types": "libferric_example.d.ts",
+  "scripts": {
+    "build": "ferric build --android --apple"
+  },
+  "devDependencies": {
+    "ferric-modules": "^0.1.0"
+  }
+}

packages/ferric-example/src/lib.rs

@@ -0,0 +1,6 @@
+use napi_derive::napi;
+
+#[napi]
+pub fn sum(a: i32, b: i32) -> i32 {
+    a + b
+}

packages/ferric/bin/ferric.js

@@ -0,0 +1,2 @@
+#!/usr/bin/env node
+import "../dist/run.js";

packages/ferric/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "ferric-modules",
+  "version": "0.1.0",
+  "description": "Rust Node-API Modules for React Native",
+  "type": "module",
+  "bin": {
+    "ferric": "./bin/ferric.js"
+  },
+  "scripts": {
+    "start": "tsx src/run.ts"
+  },
+  "dependencies": {
+    "@napi-rs/cli": "^2.18.4",
+    "@commander-js/extra-typings": "^13.1.0",
+    "bufout": "^0.3.1",
+    "chalk": "^5.4.1",
+    "commander": "^13.1.0",
+    "ora": "^8.2.0"
+  }
+}