From cfc75a615d780e514d4a6bf648d5aa58657e1a30 Mon Sep 17 00:00:00 2001
From: "Andrey.Skladchikov" <andrey.skladchikov@jetbrains.com>
Date: Tue, 11 Sep 2018 15:23:56 +0300
Subject: [PATCH] feat([publish]): pass "useBuiltIns" option to preset-env

Using "useBuiltIns: 'entry'" makes babel import only polyfills that are used in code
---
 index.js          |  3 +++
 package-lock.json | 15 +++++++++++++++
 package.json      |  1 +
 3 files changed, 19 insertions(+)

diff --git a/index.js b/index.js
index ec5f59b..814d7c1 100644
--- 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
index 3004227..0f0c69a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -735,6 +735,21 @@
         "@babel/plugin-transform-react-jsx-source": "^7.0.0"
       }
     },
+    "@babel/runtime": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.0.0.tgz",
+      "integrity": "sha512-7hGhzlcmg01CvH1EHdSPVXYX1aJ8KCEyz6I9xYIi/asDtzBPMyMhVibhM/K6g/5qnKBwjZtp10bNZIEFTRW1MA==",
+      "requires": {
+        "regenerator-runtime": "^0.12.0"
+      },
+      "dependencies": {
+        "regenerator-runtime": {
+          "version": "0.12.1",
+          "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.12.1.tgz",
+          "integrity": "sha512-odxIc1/vDlo4iZcfXqRYFj0vpXFNoGdKMAUieAlFYO6m/nl5e9KR/beGf41z4a1FI+aQgtjhuaSlDxQ0hmkrHg=="
+        }
+      }
+    },
     "@babel/template": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.0.0.tgz",
diff --git a/package.json b/package.json
index c9f90d4..58d215a 100644
--- 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": {