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-rw-r--r--include/mbgl/style/function/convert.hpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/mbgl/style/function/convert.hpp b/include/mbgl/style/function/convert.hpp
index 9f7b7ed1f8..8e544d3ad5 100644
--- a/include/mbgl/style/function/convert.hpp
+++ b/include/mbgl/style/function/convert.hpp
@@ -45,6 +45,10 @@ public:
return EvaluationError{message};
}
+ std::vector<optional<Value>> possibleOutputs() const override {
+ return {};
+ }
+
private:
std::string message;
};