From f66d6e37f27d551467f0608178b79dd960ed7446 Mon Sep 17 00:00:00 2001
From: Xuan Huang <jsx@fb.com>
Date: Fri, 26 Mar 2021 14:05:55 -0700
Subject: [PATCH] Canary Hermes for-of

Summary:
This diff canary Hermes for-of by conditionalizing the
`babel/plugin-transform-for-of` transform

Reviewed By: motiz88

Differential Revision: D27351717

fbshipit-source-id: 5758b6b578a864e189c533d8e1a874709c884514
---
 packages/metro-react-native-babel-preset/src/configs/main.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/metro-react-native-babel-preset/src/configs/main.js b/packages/metro-react-native-babel-preset/src/configs/main.js
index bb4198fd58..be4246cf2c 100644
--- a/packages/metro-react-native-babel-preset/src/configs/main.js
+++ b/packages/metro-react-native-babel-preset/src/configs/main.js
@@ -116,7 +116,7 @@ const getPreset = (src, options) => {
   if (!isHermes && (isNull || src.indexOf('Object.assign')) !== -1) {
     extraPlugins.push([require('@babel/plugin-transform-object-assign')]);
   }
-  if (hasForOf) {
+  if (!isHermesCanary && hasForOf) {
     extraPlugins.push([
       require('@babel/plugin-transform-for-of'),
       {loose: true},