feat([publish]): pass "useBuiltIns" option to preset-env

Using "useBuiltIns: 'entry'" makes babel import only polyfills that are used in code
JetBrains · Sep 11, 2018 · cfc75a6 · cfc75a6
1 parent 0e5f8d8
commit cfc75a6
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Showing 3 changed files with 19 additions and 0 deletions.
diff --git a/index.js b/index.js
@@ -1,15 +1,18 @@
+/* eslint-disable complexity */
 const MIN_BABEL_VERSION = 7;
 
 module.exports = function preset(api, opts) {
   api.assertVersion(MIN_BABEL_VERSION);
 
   const transformRuntime = opts.transformRuntime || false;
+  const useBuiltIns = opts.useBuiltIns || false;
   const angularSupport = opts.angular || false;
 
   return {
     presets: [
       require('@babel/preset-react'),
       [require('@babel/preset-env'), {
+        useBuiltIns,
         include: angularSupport
           ? ['transform-parameters'] // This fixes issue with transforming Angular code like `constructor(...args)`
           : []

diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -20,6 +20,7 @@
     "@babel/plugin-transform-strict-mode": "^7.0.0",
     "@babel/preset-env": "^7.0.0",
     "@babel/preset-react": "^7.0.0",
+    "@babel/runtime": "^7.0.0",
     "babel-plugin-angularjs-annotate": "0.9.0"
   },
   "peerDependencies": {