Add getDiffProps for Unimplemented View component (#51166)

Summary:
Pull Request resolved: #51166

See title

Changelog: [Internal]

Reviewed By: rshest

Differential Revision: D74327337

fbshipit-source-id: c5b44d833fccaa200d6019932dd5e9b1760c3af3

Author: Nick Lefever

packages/react-native/ReactCommon/react/renderer/components/unimplementedview/UnimplementedViewProps.cpp

@@ -17,4 +17,23 @@ ComponentName UnimplementedViewProps::getComponentName() const {
   return componentName_;
 }
 
+#ifdef ANDROID
+folly::dynamic UnimplementedViewProps::getDiffProps(
+    const Props* prevProps) const {
+  static const auto defaultProps = UnimplementedViewProps();
+
+  const UnimplementedViewProps* oldProps = prevProps == nullptr
+      ? &defaultProps
+      : static_cast<const UnimplementedViewProps*>(prevProps);
+
+  folly::dynamic result = ViewProps::getDiffProps(oldProps);
+
+  if (componentName_ != oldProps->componentName_) {
+    result["name"] = componentName_;
+  }
+
+  return result;
+}
+#endif
+
 } // namespace facebook::react

packages/react-native/ReactCommon/react/renderer/components/unimplementedview/UnimplementedViewProps.h

@@ -27,6 +27,12 @@ class UnimplementedViewProps final : public ViewProps {
   void setComponentName(ComponentName componentName);
   ComponentName getComponentName() const;
 
+#ifdef ANDROID
+
+  folly::dynamic getDiffProps(const Props* prevProps) const override;
+
+#endif
+
  private:
   mutable ComponentName componentName_{};
 };