SERVER-29583: Create $_internalSchemaMinProperties and $_internalSchemaMaxProperties MatchExpressions

1 files changed, 12 insertions, 0 deletions

diff --git a/src/mongo/db/matcher/expression_parser.h b/src/mongo/db/matcher/expression_parser.h
index b6a7f9c21c6..c3ec2a14c0c 100644
--- a/src/mongo/db/matcher/expression_parser.h
+++ b/src/mongo/db/matcher/expression_parser.h
@@ -210,6 +210,18 @@ private:
     StatusWithMatchExpression _parseInternalSchemaSingleIntegerArgument(
         const char* name, const BSONElement& elem) const;
 
+    /**
+     * Same as the  _parseInternalSchemaSingleIntegerArgument function, but for top-level
+     * operators which don't have paths.
+     */
+    template <class T>
+    StatusWithMatchExpression _parseTopLevelInternalSchemaSingleIntegerArgument(
+        const BSONElement& elem) const;
+
+
+    // The maximum allowed depth of a query tree. Just to guard against stack overflow.
+    static const int kMaximumTreeDepth;
+
     // Performs parsing for the match extensions. We do not own this pointer - it has to live
     // as long as the parser is active.
     const ExtensionsCallback* _extensionsCallback;