SERVER-25038 add LiteParsedPipeline

This provides a way to do pre-parse validity checks. Full
parsing of the Pipeline must be done under the collection
lock, when the collation is known.

1 files changed, 5 insertions, 1 deletions

diff --git a/src/mongo/db/pipeline/document_source_index_stats.cpp b/src/mongo/db/pipeline/document_source_index_stats.cpp
index b3b003bb89f..b6feff69eb7 100644
--- a/src/mongo/db/pipeline/document_source_index_stats.cpp
+++ b/src/mongo/db/pipeline/document_source_index_stats.cpp
@@ -30,11 +30,15 @@
 
 #include "mongo/db/pipeline/document_source.h"
 
+#include "mongo/db/pipeline/lite_parsed_document_source.h"
+
 namespace mongo {
 
 using boost::intrusive_ptr;
 
-REGISTER_DOCUMENT_SOURCE(indexStats, DocumentSourceIndexStats::createFromBson);
+REGISTER_DOCUMENT_SOURCE(indexStats,
+                         LiteParsedDocumentSourceDefault::parse,
+                         DocumentSourceIndexStats::createFromBson);
 
 const char* DocumentSourceIndexStats::getSourceName() const {
     return "$indexStats";