X-Git-Url: https://git.saurik.com/apple/javascriptcore.git/blobdiff_plain/2d39b0e377c0896910ee49ae70082ba665faf986..ed1e77d3adeb83d26fd1dfb16dd84cabdcefd250:/runtime/CustomGetterSetter.h

diff --git a/runtime/CustomGetterSetter.h b/runtime/CustomGetterSetter.h
index 4de7ded..54519eb 100644
--- a/runtime/CustomGetterSetter.h
+++ b/runtime/CustomGetterSetter.h
@@ -33,9 +33,10 @@
 
 namespace JSC {
 
-class CustomGetterSetter : public JSCell {
+class CustomGetterSetter final : public JSCell {
 public:
     typedef JSCell Base;
+    static const unsigned StructureFlags = Base::StructureFlags | StructureIsImmortal;
 
     typedef PropertySlot::GetValueFunc CustomGetter;
     typedef PutPropertySlot::PutValueFunc CustomSetter;