1 files changed, 7 insertions, 0 deletions
diff --git a/src/mongo/db/pipeline/expression.h b/src/mongo/db/pipeline/expression.h
index d0f1370daf7..07ba3f23ff2 100644
--- a/src/mongo/db/pipeline/expression.h
+++ b/src/mongo/db/pipeline/expression.h
@@ -1201,6 +1201,13 @@ public:
 };
 
 
+class ExpressionReverseArray final : public ExpressionFixedArity<ExpressionReverseArray, 1> {
+public:
+    Value evaluateInternal(Variables* vars) const final;
+    const char* getOpName() const final;
+};
+
+
 class ExpressionSlice final : public ExpressionRangedArity<ExpressionSlice, 2, 3> {
 public:
     Value evaluateInternal(Variables* vars) const final;