[core] Add support for data-driven styling

1 files changed, 12 insertions, 1 deletions

diff --git a/src/mbgl/style/layout_property.hpp b/src/mbgl/style/layout_property.hpp
index 6ea06ce556..7ce2ecc7b8 100644
--- a/src/mbgl/style/layout_property.hpp
+++ b/src/mbgl/style/layout_property.hpp
@@ -1,6 +1,9 @@
 #pragma once
 
+#include <mbgl/style/property_value.hpp>
+#include <mbgl/style/data_driven_property_value.hpp>
 #include <mbgl/style/property_evaluator.hpp>
+#include <mbgl/style/data_driven_property_evaluator.hpp>
 #include <mbgl/util/indexed_tuple.hpp>
 
 namespace mbgl {
@@ -11,11 +14,19 @@ class PropertyEvaluationParameters;
 template <class T>
 class LayoutProperty {
 public:
-    using EvaluatorType = PropertyEvaluator<T>;
     using UnevaluatedType = PropertyValue<T>;
+    using EvaluatorType = PropertyEvaluator<T>;
     using EvaluatedType = T;
 };
 
+template <class T>
+class DataDrivenLayoutProperty {
+public:
+    using UnevaluatedType = DataDrivenPropertyValue<T>;
+    using EvaluatorType = DataDrivenPropertyEvaluator<T>;
+    using EvaluatedType = PossiblyEvaluatedPropertyValue<T>;
+};
+
 template <class... Ps>
 class LayoutProperties {
 public: