From d2e0f91abbb86a53773754afc3b08f027ecaed67 Mon Sep 17 00:00:00 2001
From: Alex Hunt <huntie@fb.com>
Date: Fri, 13 Sep 2024 06:11:49 -0700
Subject: [PATCH] Switch to Hermes parser in Jest preset

Summary:
Resolves https://github.com/facebook/react-native/issues/46355.

Changelog: [Internal]

Differential Revision: D62583337
---
 packages/react-native/jest-preset.js |  6 +++++-
 packages/react-native/package.json   |  1 +
 yarn.lock                            | 19 +++++++++++++++++--
 3 files changed, 23 insertions(+), 3 deletions(-)

diff --git a/packages/react-native/jest-preset.js b/packages/react-native/jest-preset.js
index d1a749c5a2701a..5bd9fc56816d23 100644
--- a/packages/react-native/jest-preset.js
+++ b/packages/react-native/jest-preset.js
@@ -15,7 +15,11 @@ module.exports = {
     platforms: ['android', 'ios', 'native'],
   },
   transform: {
-    '^.+\\.(js|ts|tsx)$': 'babel-jest',
+    '^.+\\.(js)$': [
+      'babel-jest',
+      {plugins: ['babel-plugin-syntax-hermes-parser']},
+    ],
+    '^.+\\.(ts|tsx)$': 'babel-jest',
     '^.+\\.(bmp|gif|jpg|jpeg|mp4|png|psd|svg|webp)$': require.resolve(
       './jest/assetFileTransformer.js',
     ),
diff --git a/packages/react-native/package.json b/packages/react-native/package.json
index 673d7724263345..bd1af9b82c5860 100644
--- a/packages/react-native/package.json
+++ b/packages/react-native/package.json
@@ -119,6 +119,7 @@
     "abort-controller": "^3.0.0",
     "anser": "^1.4.9",
     "ansi-regex": "^5.0.0",
+    "babel-plugin-syntax-hermes-parser": "^0.23.1",
     "base64-js": "^1.5.1",
     "chalk": "^4.0.0",
     "commander": "^12.0.0",
diff --git a/yarn.lock b/yarn.lock
index e60999074fcea8..26e760527b2d61 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2810,7 +2810,7 @@ babel-plugin-syntax-hermes-parser@0.23.0:
   dependencies:
     hermes-parser "0.23.0"
 
-babel-plugin-syntax-hermes-parser@0.23.1:
+babel-plugin-syntax-hermes-parser@0.23.1, babel-plugin-syntax-hermes-parser@^0.23.1:
   version "0.23.1"
   resolved "https://registry.yarnpkg.com/babel-plugin-syntax-hermes-parser/-/babel-plugin-syntax-hermes-parser-0.23.1.tgz#470e9d1d30ad670d4c8a37138e22ae39c843d1ff"
   integrity sha512-uNLD0tk2tLUjGFdmCk+u/3FEw2o+BAwW4g+z2QVlxJrzZYOOPADroEcNtTPt5lNiScctaUmnsTkVEnOwZUOLhA==
@@ -7387,11 +7387,26 @@ react-devtools-core@^5.3.1:
     shell-quote "^1.6.1"
     ws "^7"
 
-react-is@19.0.0-rc-fb9a90fa48-20240614, react-is@^16.13.1, react-is@^16.8.4, react-is@^17.0.1, react-is@^18.0.0:
+react-is@19.0.0-rc-fb9a90fa48-20240614:
   version "19.0.0-rc-fb9a90fa48-20240614"
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-19.0.0-rc-fb9a90fa48-20240614.tgz#6987893799abdedf2e9929e31541cb6d7dc8285a"
   integrity sha512-60qI7v1B9RhmZwjTCnAgzcuABOQsIH20vTbETQPaze96s1lY2lSawv9dvXAfF8Z1MIqOppWSKLNOshF0WsZ3OA==
 
+react-is@^16.13.1, react-is@^16.8.4:
+  version "16.13.1"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.1.tgz#789729a4dc36de2999dc156dd6c1d9c18cea56a4"
+  integrity sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==
+
+react-is@^17.0.1:
+  version "17.0.2"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-17.0.2.tgz#e691d4a8e9c789365655539ab372762b0efb54f0"
+  integrity sha512-w2GsyukL62IJnlaff/nRegPQR94C/XXamvMWmSHRJ4y7Ts/4ocGRmTHvOs8PSE6pB3dWOrD/nueuU5sduBsQ4w==
+
+react-is@^18.0.0:
+  version "18.3.1"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-18.3.1.tgz#e83557dc12eae63a99e003a46388b1dcbb44db7e"
+  integrity sha512-/LLMVyas0ljjAtoYiPqYiL8VWXzUUdThrmU5+n20DZv+a+ClRoevUzw5JxU+Ieh5/c87ytoTBV9G1FiKfNJdmg==
+
 react-refresh@^0.14.0:
   version "0.14.2"
   resolved "https://registry.yarnpkg.com/react-refresh/-/react-refresh-0.14.2.tgz#3833da01ce32da470f1f936b9d477da5c7028bf9"