From eca83488128ccaeea9727a1bdc57a30640bc23f0 Mon Sep 17 00:00:00 2001
From: fisker Cheung <lionkay@gmail.com>
Date: Mon, 27 Oct 2025 20:23:01 +0800
Subject: [PATCH] Build: stop transforming class private fields (#18128)

---
 scripts/build/build-javascript-module.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/scripts/build/build-javascript-module.js b/scripts/build/build-javascript-module.js
index 11d344528..838432047 100644
--- a/scripts/build/build-javascript-module.js
+++ b/scripts/build/build-javascript-module.js
@@ -223,6 +223,10 @@ function getEsbuildOptions({ packageConfig, file, cliOptions }) {
       "regexp-unicode-property-escapes": true,
       // Maybe because Node.js v14 doesn't support "spread parameters after optional chaining" https://node.green/
       "optional-chain": true,
+      // Maybe because https://github.com/evanw/esbuild/pull/3167?
+      "class-field": true,
+      "class-private-field": true,
+      "class-private-method": true,
     },
     packages: "bundle",
   };