From ac316607ba14c101bf69a3d05eaafd253b833923 Mon Sep 17 00:00:00 2001
From: "Mark S. Miller" <erights@users.noreply.github.com>
Date: Wed, 8 Oct 2025 08:30:40 -0700
Subject: [PATCH] [nonextensible-applies-to-private] Fix bugs (#4590)

Fixes #4587
---
 ...te-class-field-on-nonextensible-objects.js |  2 +-
 ...-field-on-nonextensible-return-override.js | 20 +++++++++----------
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/test/language/statements/class/elements/private-class-field-on-nonextensible-objects.js b/test/language/statements/class/elements/private-class-field-on-nonextensible-objects.js
index ada3868916..a87c9cd634 100644
--- a/test/language/statements/class/elements/private-class-field-on-nonextensible-objects.js
+++ b/test/language/statements/class/elements/private-class-field-on-nonextensible-objects.js
@@ -92,7 +92,7 @@ class ClassWithPrivateAccessor extends NonExtensibleBase {
 
 const a = new ClassWithPrivateAccessor(false);
 // extensible objects can be extended
-assert.sameValue(m.publicAccessor, 42);
+assert.sameValue(a.publicAccessor, 42);
 
 // where superclass prevented extensions & subclass extended
 assert.throws(TypeError, function () {
diff --git a/test/language/statements/class/subclass/private-class-field-on-nonextensible-return-override.js b/test/language/statements/class/subclass/private-class-field-on-nonextensible-return-override.js
index d8e7034a7d..de0623bb62 100644
--- a/test/language/statements/class/subclass/private-class-field-on-nonextensible-return-override.js
+++ b/test/language/statements/class/subclass/private-class-field-on-nonextensible-return-override.js
@@ -35,14 +35,14 @@ class ClassWithPrivateField extends TrojanBase {
     super(obj);
     this.#val = 42;
   }
-  val() {
-    return this.#val;
+  static val(obj) {
+    return obj.#val;
   }
 }
 
 const t = new ClassWithPrivateField({});
 // extensible objects can be extended
-assert.sameValue(t.val(), 42);
+assert.sameValue(ClassWithPrivateField.val(t), 42);
 
 // where superclass prevented extensions & subclass extended
 assert.throws(TypeError, function () {
@@ -59,15 +59,14 @@ class ClassWithPrivateMethod extends TrojanBase {
   #privateMethod() {
     return 42;
   };
-  // public methods are on the prototype, so are ok.
-  publicMethod() {
-    return this.#privateMethod();
+  static val(obj) {
+    return obj.#privateMethod();
   }
 }
 
 const m = new ClassWithPrivateMethod({});
 // extensible objects can be extended
-assert.sameValue(m.publicMethod(), 42);
+assert.sameValue(ClassWithPrivateMethod.val(m), 42);
 
 // where superclass prevented extensions & subclass extended
 assert.throws(TypeError, function () {
@@ -84,15 +83,14 @@ class ClassWithPrivateAccessor extends TrojanBase {
   get #privateAccessor() {
     return 42;
   };
-  // public accessors are on the prototype, so are ok.
-  get publicAccessor() {
-    return this.#privateAccessor;
+  static val(obj) {
+    return obj.#privateAccessor;
   }
 }
 
 const a = new ClassWithPrivateAccessor({});
 // extensible objects can be extended
-assert.sameValue(m.publicAccessor, 42);
+assert.sameValue(ClassWithPrivateAccessor.val(a), 42);
 
 // where superclass prevented extensions & subclass extended
 assert.throws(TypeError, function () {