Enable up to stage 1 in babel

Author: lexun

packages/react-scripts/.babelrc

@@ -1,3 +1,7 @@
 {
-  "presets": ["react-app"]
-}
+  "presets": [
+    "latest",
+    "react",
+    "stage-1"
+  ]
+}

packages/react-scripts/config/jest/transform.js

@@ -9,5 +9,9 @@
 const babelJest = require('babel-jest');
 
 module.exports = babelJest.createTransformer({
-  presets: [require.resolve('babel-preset-react-app')]
+  presets: [
+    require.resolve('babel-preset-latest'),
+    require.resolve('babel-preset-react'),
+    require.resolve('babel-preset-stage-1')
+  ]
 });

packages/react-scripts/config/webpack.config.dev.js

@@ -131,7 +131,11 @@ module.exports = function(publicPath) {
         query: {
           // @remove-on-eject-begin
           babelrc: false,
-          presets: [require.resolve('babel-preset-react-app')],
+          presets: [
+            require.resolve('babel-preset-latest'),
+            require.resolve('babel-preset-react'),
+            require.resolve('babel-preset-stage-1')
+          ],
           // @remove-on-eject-end
           // This is a feature of `babel-loader` for webpack (not Babel itself).
           // It enables caching results in ./node_modules/.cache/react-scripts/

packages/react-scripts/config/webpack.config.prod.js

@@ -124,7 +124,11 @@ module.exports = {
         // @remove-on-eject-begin
         query: {
           babelrc: false,
-          presets: [require.resolve('babel-preset-react-app')],
+          presets: [
+            require.resolve('babel-preset-latest'),
+            require.resolve('babel-preset-react'),
+            require.resolve('babel-preset-stage-1')
+          ],
         },
         // @remove-on-eject-end
       },

packages/react-scripts/package.json

@@ -28,7 +28,9 @@
     "babel-eslint": "7.0.0",
     "babel-jest": "16.0.0",
     "babel-loader": "6.2.5",
-    "babel-preset-react-app": "^1.0.0",
+    "babel-preset-latest": "^6.16.0",
+    "babel-preset-react": "^6.16.0",
+    "babel-preset-stage-1": "^6.16.0",
     "case-sensitive-paths-webpack-plugin": "1.1.4",
     "chalk": "1.1.3",
     "connect-history-api-fallback": "1.3.0",
@@ -84,7 +86,9 @@
     "babel-eslint",
     "babel-jest",
     "babel-loader",
-    "babel-preset-react-app",
+    "babel-preset-latest",
+    "babel-preset-react",
+    "babel-preset-stage-1",
     "case-sensitive-paths-webpack-plugin",
     "chalk",
     "connect-history-api-fallback",