feat: support merge normal scripts

Author: antfu

.gitignore

@@ -79,3 +79,5 @@ dist
 
 # IDE
 .idea
+
+temp.ts

README.md

@@ -9,7 +9,7 @@ Bring `<script setup>` to Vue 2
 - [x] POC
 - [ ] Components registration
 - [ ] Compile time macros
-- [ ] Merge with normal scripts
+- [x] Merge with normal scripts
 
 ## Sponsors
 

package.json

@@ -14,7 +14,6 @@
   "funding": "https://github.com/sponsors/antfu",
   "author": "Anthony Fu <anthonyfu117@hotmail.com>",
   "license": "MIT",
-  "sideEffects": false,
   "bugs": {
     "url": "https://github.com/antfu/vue2-script-setup-transform/issues"
   },
@@ -54,11 +53,11 @@
     "typescript": "^4.3.5"
   },
   "dependencies": {
+    "@babel/core": "^7.15.0",
+    "@babel/generator": "^7.15.0",
     "@babel/parser": "^7.15.3",
     "@babel/traverse": "^7.15.0",
-    "@babel/types": "^7.15.0",
     "@vue/shared": "^3.2.4",
-    "estree-walker": "^3.0.0",
     "htmlparser2": "^6.1.0",
     "magic-string": "^0.25.7"
   }

playground/App.vue

@@ -24,3 +24,9 @@ function dec() {
 
 const decText = '<b>Dec</b>'
 </script>
+
+<script lang="ts">
+export default {
+  name: 'App'
+}
+</script>