From e0631a51154bd92d375240bab49b6547c3a212ef Mon Sep 17 00:00:00 2001
From: ForgeCore <forgecore@lobster.com>
Date: Tue, 7 Jul 2026 03:50:22 +0800
Subject: [PATCH] fix: protect method names from token registration collisions

Prevent token registration from overwriting module methods (token,
format, compile) by making them non-writable. Previously, calling
morgan.token('token', fn) would overwrite the morgan.token() method,
breaking subsequent token registrations.

Fixes #265
---
 index.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/index.js b/index.js
index 313f5dc..5d81b14 100644
--- a/index.js
+++ b/index.js
@@ -19,6 +19,13 @@ module.exports.compile = compile
 module.exports.format = format
 module.exports.token = token
 
+// Protect method names from being overwritten by token registrations
+Object.defineProperties(module.exports, {
+  compile: { writable: false, configurable: false },
+  format: { writable: false, configurable: false },
+  token: { writable: false, configurable: false }
+})
+
 /**
  * Module dependencies.
  * @private