chore(react/transform): migrate from esbuild to Rslib

packages/react/transform/package.json

@@ -28,15 +28,14 @@
   "scripts": {
     "bench": "vitest bench",
     "build:debug": "napi build --platform --js index.cjs",
-    "build:wasm": "node ./scripts/build_wasm.js",
+    "build:wasm": "rslib build",
     "test": "vitest --coverage",
     "test:cargo": "cargo test"
   },
   "devDependencies": {
     "@emnapi/core": "1.3.1",
     "@emnapi/runtime": "1.3.1",
     "@napi-rs/cli": "2.18.4",
-    "esbuild": "^0.27.3",
     "tiny-glob": "0.2.9"
   }
 }

packages/react/transform/rslib.config.ts

@@ -0,0 +1,79 @@
+import { defineConfig, type RsbuildPlugin } from '@rslib/core';
+import { execSync } from 'node:child_process';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const root = __dirname;
+
+const pluginCargoBuild = {
+  name: 'plugin-cargo-build',
+  setup(api) {
+    api.onBeforeBuild(() => {
+      execSync(
+        `cargo build --release --target wasm32-unknown-unknown --features noop`,
+        {
+          env: {
+            ...process.env,
+            RUSTFLAGS: '-C link-arg=--export-table -C link-arg=-s --cfg getrandom_backend="custom"',
+          },
+          stdio: 'inherit',
+          cwd: root,
+        },
+      );
+    });
+  },
+} satisfies RsbuildPlugin;
+
+export default defineConfig({
+  lib: [
+    {
+      format: 'cjs',
+      syntax: 'es2022',
+      dts: false,
+    },
+  ],
+  source: {
+    entry: {
+      wasm: './src/wasm.js',
+    },
+  },
+  output: {
+    target: 'node',
+    distPath: {
+      root: './dist',
+    },
+    cleanDistPath: false,
+    filename: {
+      js: '[name].cjs',
+    },
+  },
+  plugins: [pluginCargoBuild],
+  tools: {
+    rspack: {
+      resolve: {
+        alias: {
+          '#react_transform.wasm': path.resolve(
+            root,
+            '../../../target/wasm32-unknown-unknown/release/react_transform.wasm',
+          ),
+        },
+      },
+      resolveLoader: {
+        alias: {
+          'buffer-loader': path.resolve(__dirname, 'scripts/buffer-loader.cjs'),
+        },
+      },
+      module: {
+        rules: [
+          {
+            test: /\.wasm$/,
+            use: ['buffer-loader'],
+            type: 'javascript/auto',
+          },
+        ],
+      },
+    },
+  },
+});

packages/react/transform/scripts/buffer-loader.cjs

@@ -0,0 +1,7 @@
+// Copyright 2026 The Lynx Authors. All rights reserved.
+// Licensed under the Apache License Version 2.0 that can be found in the
+// LICENSE file in the root directory of this source tree.
+module.exports = function loader(content) {
+  return `export default Buffer.from("${content.toString('base64')}", "base64");`;
+};
+module.exports.raw = true;

packages/react/transform/src/wasm.js

@@ -6,7 +6,7 @@ import { getDefaultContext } from '@emnapi/runtime';
 
 // build with `./node_modules/.bin/esbuild src/wasm.js --bundle --loader:.wasm=binary --format=cjs --platform=neutral --outfile=dist/wasm.js`
 // eslint-disable-next-line import/no-unresolved
-import bytes from '../dist/react_transform.wasm';
+import bytes from '#react_transform.wasm';
 
 const mod = new WebAssembly.Module(bytes);
 

packages/react/transform/turbo.json

@@ -15,7 +15,8 @@
         "src/wasm.js",
         "build.rs",
         "Cargo.toml",
-        "scripts/build_wasm.sh"
+        "rslib.config.ts",
+        "scripts/buffer-loader.cjs"
       ],
       "outputs": ["dist/wasm.cjs"]
     },