From 5f6be494fc11caf8dcf900807c5b6b646fcd8d74 Mon Sep 17 00:00:00 2001
From: Kar Rui Lau <karrui.lau@gmail.com>
Date: Mon, 30 Sep 2024 21:59:38 +0800
Subject: [PATCH] fix: do nothing if target does not exist in getters map
 (#155)

---
 lib/register.js               |  7 ++++++-
 test/hook/v14-double-hook.mjs | 13 +++++++++++--
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/lib/register.js b/lib/register.js
index 9c06cb3..2de012b 100644
--- a/lib/register.js
+++ b/lib/register.js
@@ -17,7 +17,12 @@ const proxyHandler = {
     if (name === Symbol.toStringTag) {
       return 'Module'
     }
-    return getters.get(target)[name]()
+
+    const getter = getters.get(target)[name]
+
+    if (typeof getter === 'function') {
+      return getter()
+    }
   },
 
   defineProperty (target, property, descriptor) {
diff --git a/test/hook/v14-double-hook.mjs b/test/hook/v14-double-hook.mjs
index feb997c..2098e69 100644
--- a/test/hook/v14-double-hook.mjs
+++ b/test/hook/v14-double-hook.mjs
@@ -19,6 +19,15 @@ Hook([toWrap], (exports) => {
   }
 })
 
-const { foo } = await import('../fixtures/foo.mjs')
+Hook([toWrap], (exports) => {
+  const shouldNotExist = exports.default
+  exports = function () {
+    return shouldNotExist()
+  }
+})
+
+const imp = await import('../fixtures/foo.mjs')
 
-strictEqual(foo(), 'foo-first-second')
+strictEqual(imp.foo(), 'foo-first-second')
+// This should not throw!
+strictEqual(imp.default, undefined)