1 files changed, 10 insertions, 0 deletions
diff --git a/src/mbgl/renderer/possibly_evaluated_property_value.hpp b/src/mbgl/renderer/possibly_evaluated_property_value.hpp
index 625235011c..2e47e6c854 100644
--- a/src/mbgl/renderer/possibly_evaluated_property_value.hpp
+++ b/src/mbgl/renderer/possibly_evaluated_property_value.hpp
@@ -49,6 +49,16 @@ public:
             }
         );
     }
+
+    template <class Feature>
+    T evaluate(const Feature& feature, float zoom, const FeatureState& featureState, T defaultValue) const {
+        return this->match(
+            [&] (const T& constant_) { return constant_; },
+            [&] (const style::PropertyExpression<T>& expression) {
+                return expression.evaluate(zoom, feature, featureState, defaultValue);
+            }
+        );
+    }
 };
 
 template <class T>