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-rw-r--r--include/mbgl/style/expression/case.hpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/mbgl/style/expression/case.hpp b/include/mbgl/style/expression/case.hpp
index ece2fe0329..e61a55fc6d 100644
--- a/include/mbgl/style/expression/case.hpp
+++ b/include/mbgl/style/expression/case.hpp
@@ -26,6 +26,8 @@ public:
bool operator==(const Expression& e) const override;
+ std::vector<optional<Value>> possibleOutputs() const override;
+
private:
std::vector<Branch> branches;
std::unique_ptr<Expression> otherwise;