LibJS: Virtualize access to an Object's own properties

Object now has virtual get_own_property() and put_own_property() member
functions that can be overridden to provide custom behavior.

We use these virtuals to move Array-specific access behavior to Array.

1 files changed, 2 insertions, 0 deletions

diff --git a/Libraries/LibJS/Runtime/Array.h b/Libraries/LibJS/Runtime/Array.h
index d99873544f..828b70c33f 100644
--- a/Libraries/LibJS/Runtime/Array.h
+++ b/Libraries/LibJS/Runtime/Array.h
@@ -45,6 +45,8 @@ private:
     virtual const char* class_name() const override { return "Array"; }
     virtual void visit_children(Cell::Visitor&) override;
     virtual bool is_array() const override { return true; }
+    virtual Optional<Value> get_own_property(const String& property_name) const override;
+    virtual bool put_own_property(const String& property_name, Value) override;
 
     Vector<Value> m_elements;
 };