From ad90f98a0ed72562b3bdece98c9049ad8ae8d624 Mon Sep 17 00:00:00 2001
From: Michel Weststrate <mweststrate@fb.com>
Date: Wed, 13 Nov 2019 08:34:45 -0800
Subject: [PATCH] enable optional chaining in plugins

Summary: Enable transpilation of optional chaining in plugins

Reviewed By: jknoxville

Differential Revision: D18451930

fbshipit-source-id: a55aa8d7a65ee8e6568e61ae377c199acfd158f4
---
 static/transforms/index.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/static/transforms/index.js b/static/transforms/index.js
index cdcd9f8c9..184d7f81e 100644
--- a/static/transforms/index.js
+++ b/static/transforms/index.js
@@ -22,7 +22,7 @@ function transform({filename, options, src}) {
   let ast = babylon.parse(src, {
     filename,
     plugins: isTypeScript
-      ? ['jsx', 'typescript', 'classProperties']
+      ? ['jsx', 'typescript', 'classProperties', 'optionalChaining']
       : [
           'jsx',
           ['flow', {all: true}],
@@ -50,6 +50,7 @@ function transform({filename, options, src}) {
       require('../node_modules/@babel/plugin-transform-typescript'),
       require('../node_modules/@babel/plugin-proposal-class-properties'),
       require('../node_modules/@babel/plugin-transform-modules-commonjs'),
+      require('../node_modules/@babel/plugin-proposal-optional-chaining'),
     );
   }