1 files changed, 13 insertions, 2 deletions
diff --git a/Userland/Libraries/LibJS/Runtime/PrimitiveString.h b/Userland/Libraries/LibJS/Runtime/PrimitiveString.h
index 1a4f4af0dc..41b79828c0 100644
--- a/Userland/Libraries/LibJS/Runtime/PrimitiveString.h
+++ b/Userland/Libraries/LibJS/Runtime/PrimitiveString.h
@@ -17,6 +17,7 @@ namespace JS {
 
 class PrimitiveString final : public Cell {
 public:
+    explicit PrimitiveString(PrimitiveString&, PrimitiveString&);
     explicit PrimitiveString(String);
     explicit PrimitiveString(Utf16String);
     virtual ~PrimitiveString();
@@ -37,12 +38,20 @@ public:
 
 private:
     virtual StringView class_name() const override { return "PrimitiveString"sv; }
+    virtual void visit_edges(Cell::Visitor&) override;
 
-    mutable String m_utf8_string;
+    void resolve_rope_if_needed() const;
+
+    mutable bool m_is_rope { false };
     mutable bool m_has_utf8_string { false };
+    mutable bool m_has_utf16_string { false };
+
+    mutable PrimitiveString* m_left { nullptr };
+    mutable PrimitiveString* m_right { nullptr };
+
+    mutable String m_utf8_string;
 
     mutable Utf16String m_utf16_string;
-    mutable bool m_has_utf16_string { false };
 };
 
 PrimitiveString* js_string(Heap&, Utf16View const&);
@@ -54,4 +63,6 @@ PrimitiveString* js_string(VM&, Utf16String);
 PrimitiveString* js_string(Heap&, String);
 PrimitiveString* js_string(VM&, String);
 
+PrimitiveString* js_rope_string(VM&, PrimitiveString&, PrimitiveString&);
+
 }