From f3ea0228c604c0f23d288cf5db382daeb2f3b257 Mon Sep 17 00:00:00 2001
From: Sosuke Suzuki <sosuke@bun.com>
Date: Thu, 22 Jan 2026 15:54:38 +0900
Subject: [PATCH] fix(bundler): allow tree-shaking `__esModule` in cjs2esm
 defineProperty calls

Remove the skip for `__esModule` export name so that
`Object.defineProperty(exports, "__esModule", ...)` is also eligible
for tree-shaking during cjs2esm conversion.

Co-Authored-By: Claude <noreply@anthropic.com>
---
 src/ast/P.zig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/ast/P.zig b/src/ast/P.zig
index 3d912cb157..640d7694bd 100644
--- a/src/ast/P.zig
+++ b/src/ast/P.zig
@@ -3796,7 +3796,6 @@ pub fn NewParser_(
         ///   - `{ enumerable: true, get: function() { return expr; } }`
         ///
         /// Skipped cases:
-        ///   - Export name is `"__esModule"`
         ///   - Descriptor contains a `set` property
         ///   - Descriptor has `enumerable: false` explicitly
         pub fn tryExtractDefinePropertyExport(p: *P, e_: *E.Call, call_loc: logger.Loc) ?Expr {