Check for regneratorRuntime when transpiling modules

Author: CompuIves

packages/app/src/sandbox/eval/presets/create-react-app/index.js

@@ -44,7 +44,14 @@ export default function initialize() {
                 'babel-plugin-macros',
                 ['proposal-class-properties', { loose: true }],
                 ['proposal-object-rest-spread', { useBuiltIns: true }],
-                'transform-runtime',
+                [
+                  'transform-runtime',
+                  {
+                    corejs: false,
+                    helpers: true,
+                    regenerator: true,
+                  },
+                ],
                 'syntax-dynamic-import',
               ],
               presets: [

packages/app/src/sandbox/eval/transpilers/babel/check.js

@@ -1,12 +1,17 @@
 import isESModule from '../../utils/is-es-module';
 
 const JSXSyntax = /\n(.*?)<[A-z](.|\n)*?\/?>/;
+const regeneratorSyntax = /(\s|^)regeneratorRuntime\./;
 
 export function shouldTranspile(code: string, path: string) {
   if (isESModule(code)) {
     return true;
   }
 
+  if (regeneratorSyntax.test(code)) {
+    return true;
+  }
+
   const match = code.match(JSXSyntax);
   if (match) {
     const startOfLine = match[1];