babel in rollup

atom-community · Jun 3, 2020 · d172cce · d172cce
1 parent cb4d182
commit d172cce
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Showing 3 changed files with 6 additions and 2 deletions.
diff --git a/babel.config.js b/babel.config.js
@@ -6,7 +6,7 @@ let presets = [
     }]
 ];
 
-let plugins = [];
+let plugins = ["@babel/plugin-proposal-optional-chaining"];
 
 if (process.env.BABEL_ENV === "development") {
     plugins.push("@babel/plugin-transform-modules-commonjs");

diff --git a/package.json b/package.json
@@ -36,11 +36,13 @@
     "rollup-plugin-terser": "^6.1.0",
     "rollup-plugin-css-only": "^2.1.0",
     "rollup-plugin-execute": "^1.1.1",
+    "rollup-plugin-babel": "^4.4.0",
     "csso-cli": "^3.0.0",
     "shx": "^0.3.2",
     "@babel/core": "^7.10.1",
     "@babel/cli": "^7.10.1",
-    "@babel/preset-env": "^7.10.1"
+    "@babel/preset-env": "^7.10.1",
+    "@babel/plugin-proposal-optional-chaining": "7.10.1"
   },
   "engines": {
     "atom": ">=1.20.0"

diff --git a/rollup.config.js b/rollup.config.js
@@ -3,8 +3,10 @@ import commonjs from '@rollup/plugin-commonjs';
 import {terser} from 'rollup-plugin-terser';
 import css from 'rollup-plugin-css-only';
 import execute from 'rollup-plugin-execute';
+import babel from 'rollup-plugin-babel';
 
 let plugins = [
+    babel(),
 
     // so Rollup can find externals
     resolve({extensions: ['.js'], preferBuiltins: true}),