SERVER-48844 Add unwind agg stage to grammar

1 files changed, 16 insertions, 0 deletions

diff --git a/src/mongo/db/cst/c_node.h b/src/mongo/db/cst/c_node.h
index 5d1fcafefd3..47cf8fec63e 100644
--- a/src/mongo/db/cst/c_node.h
+++ b/src/mongo/db/cst/c_node.h
@@ -76,6 +76,22 @@ struct CNode {
         return CNode{ObjectChildren{}};
     }
 
+    /*
+     * Produce the payload of this CNode representing a string. Throws a fatal exception if this
+     * CNode does not represent a string.
+     */
+    auto& getString() const {
+        return stdx::get<UserString>(payload);
+    }
+
+    /*
+     * Produce the payload of this CNode representing a boolean. Throws a fatal exception if this
+     * CNode does not represent a boolean.
+     */
+    auto& getBool() const {
+        return stdx::get<UserBoolean>(payload);
+    }
+
     /**
      * Produce a string formatted with tabs and endlines that describes the CST underneath this
      * CNode.