[core] Move evaluation algorithm to Function

1 files changed, 4 insertions, 1 deletions

diff --git a/include/mbgl/style/function.hpp b/include/mbgl/style/function.hpp
index 6103f85e35..b023229e4f 100644
--- a/include/mbgl/style/function.hpp
+++ b/include/mbgl/style/function.hpp
@@ -1,7 +1,8 @@
 #pragma once
 
-#include <vector>
+#include <cassert>
 #include <utility>
+#include <vector>
 
 namespace mbgl {
 namespace style {
@@ -20,6 +21,8 @@ public:
     float getBase() const { return base; }
     const std::vector<std::pair<float, T>>& getStops() const { return stops; }
 
+    T evaluate(float z) const;
+
     friend bool operator==(const Function& lhs, const Function& rhs) {
         return lhs.base == rhs.base && lhs.stops == rhs.stops;
     }