1 files changed, 30 insertions, 0 deletions
diff --git a/include/mbgl/style/function/composite_categorical_stops.hpp b/include/mbgl/style/function/composite_categorical_stops.hpp
new file mode 100644
index 0000000000..b796621d1a
--- /dev/null
+++ b/include/mbgl/style/function/composite_categorical_stops.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <mbgl/style/function/categorical_stops.hpp>
+
+namespace mbgl {
+namespace style {
+
+template <class T>
+class CompositeCategoricalStops {
+public:
+    using Stops = std::map<float, std::map<CategoricalValue, T>>;
+    Stops stops;
+
+    CompositeCategoricalStops() = default;
+    CompositeCategoricalStops(Stops stops_)
+        : stops(std::move(stops_)) {
+    }
+
+    CategoricalStops<T> innerStops(const std::map<CategoricalValue, T>& stops_) const {
+        return CategoricalStops<T>(stops_);
+    }
+
+    friend bool operator==(const CompositeCategoricalStops& lhs,
+                           const CompositeCategoricalStops& rhs) {
+        return lhs.stops == rhs.stops;
+    }
+};
+
+} // namespace style
+} // namespace mbgl