Merge pull request #15 from cypress-io/issue-14-expand-js-features

feat: Expand babel plugins/presets to support commonly used experimental features

Author: chrisbreiding

README.md

@@ -79,8 +79,16 @@ If you pass one of the top-level options in (`extensions`, `transform`, etc), it
       {
         ast: false,
         babelrc: false,
-        plugins: ['babel-plugin-add-module-exports'],
-        presets: ['@babel/preset-env', '@babel/preset-react']
+        plugins: [
+          'babel-plugin-add-module-exports'
+          '@babel/plugin-proposal-class-properties',
+          '@babel/plugin-proposal-object-rest-spread',
+          '@babel/plugin-transform-runtime',
+          ],
+        presets: [
+          '@babel/preset-env',
+          '@babel/preset-react',
+        ]
       },
     ]
   ],

index.js

@@ -27,10 +27,20 @@ const defaultOptions = {
           ast: false,
           babelrc: false,
           // irons out differents between ES6 modules and node exports
-          plugins: ['babel-plugin-add-module-exports'].map(require.resolve),
-          // babel-preset-env supports any JS that's stage-4, meaning it's
-          // completely finalized in the ECMA standard
-          presets: ['@babel/preset-env', '@babel/preset-react'].map(require.resolve),
+          plugins: [
+            ...[
+              'babel-plugin-add-module-exports',
+              '@babel/plugin-proposal-class-properties',
+              '@babel/plugin-proposal-object-rest-spread',
+            ].map(require.resolve),
+            [require.resolve('@babel/plugin-transform-runtime'), {
+              moduleName: path.dirname(require.resolve('@babel/runtime/package')),
+            }],
+          ],
+          presets: [
+            '@babel/preset-env',
+            '@babel/preset-react',
+          ].map(require.resolve),
         },
       ],
     ],

package-lock.json

@@ -59,8 +59,12 @@
   },
   "dependencies": {
     "@babel/core": "7.0.0-beta.55",
+    "@babel/plugin-proposal-class-properties": "7.0.0-beta.55",
+    "@babel/plugin-proposal-object-rest-spread": "7.0.0-beta.55",
+    "@babel/plugin-transform-runtime": "7.0.0-beta.55",
     "@babel/preset-env": "7.0.0-beta.55",
     "@babel/preset-react": "7.0.0-beta.55",
+    "@babel/runtime": "7.0.0-beta.55",
     "babel-plugin-add-module-exports": "0.2.1",
     "babelify": "9.0.0",
     "bluebird": "3.5.1",