refactor: switch to tsdown

package.json

@@ -21,6 +21,7 @@
   "devDependencies": {
     "@babel/plugin-syntax-typescript": "^7.25.9",
     "@eslint/js": "^9.23.0",
+    "@oxc-project/runtime": "^0.66.0",
     "@rollup/plugin-babel": "^6.0.4",
     "@types/babel__core": "^7.20.5",
     "@types/babel__helper-module-imports": "^7.18.3",
@@ -35,7 +36,7 @@
     "jsdom": "^26.0.0",
     "prettier": "3.5.3",
     "tslib": "^2.8.1",
-    "tsup": "^8.4.0",
+    "tsdown": "^0.9.6",
     "typescript": "~5.8.2",
     "typescript-eslint": "^8.29.0",
     "vite": "^6.2.5",

packages/babel-plugin-jsx/package.json

@@ -21,8 +21,8 @@
     "url": "git+https://github.com/vuejs/babel-plugin-jsx.git"
   },
   "scripts": {
-    "build": "tsup",
-    "watch": "tsup --watch"
+    "build": "tsdown",
+    "watch": "tsdown --watch"
   },
   "bugs": {
     "url": "https://github.com/vuejs/babel-plugin-jsx/issues"

packages/babel-plugin-jsx/tsdown.config.ts

@@ -1,4 +1,4 @@
-import { defineConfig } from 'tsup';
+import { defineConfig } from 'tsdown';
 
 export default defineConfig({
   entry: ['src/index.ts'],

packages/babel-plugin-resolve-type/package.json

@@ -32,8 +32,8 @@
     }
   },
   "scripts": {
-    "build": "tsup",
-    "watch": "tsup --watch"
+    "build": "tsdown",
+    "watch": "tsdown --watch"
   },
   "bugs": {
     "url": "https://github.com/vuejs/babel-plugin-jsx/issues"

packages/babel-plugin-resolve-type/tsdown.config.ts

@@ -1,4 +1,4 @@
-import { defineConfig } from 'tsup';
+import { defineConfig } from 'tsdown';
 
 export default defineConfig({
   entry: ['src/index.ts'],