wip: compileScriptSetup

packages/compiler-core/package.json

@@ -31,8 +31,8 @@
   "homepage": "https://github.com/vuejs/vue-next/tree/master/packages/compiler-core#readme",
   "dependencies": {
     "@vue/shared": "3.0.0-beta.20",
-    "@babel/parser": "^7.8.6",
-    "@babel/types": "^7.8.6",
+    "@babel/parser": "^7.10.4",
+    "@babel/types": "^7.10.4",
     "estree-walker": "^0.8.1",
     "source-map": "^0.6.1"
   }

packages/compiler-core/src/transforms/transformExpression.ts

@@ -22,10 +22,15 @@ import {
   parseJS,
   walkJS
 } from '../utils'
-import { isGloballyWhitelisted, makeMap } from '@vue/shared'
+import {
+  isGloballyWhitelisted,
+  makeMap,
+  babelParserDefautPlugins
+} from '@vue/shared'
 import { createCompilerError, ErrorCodes } from '../errors'
 import { Node, Function, Identifier, ObjectProperty } from '@babel/types'
 import { validateBrowserExpression } from '../validateExpression'
+import { ParserPlugin } from '@babel/parser'
 
 const isLiteralWhitelisted = /*#__PURE__*/ makeMap('true,false,null,this')
 
@@ -127,12 +132,7 @@ export function processExpression(
     ast = parseJS(source, {
       plugins: [
         ...context.expressionPlugins,
-        // by default we enable proposals slated for ES2020.
-        // full list at https://babeljs.io/docs/en/next/babel-parser#plugins
-        // this will need to be updated as the spec moves forward.
-        'bigInt',
-        'optionalChaining',
-        'nullishCoalescingOperator'
+        ...(babelParserDefautPlugins as ParserPlugin[])
       ]
     }).program
   } catch (e) {