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, 6 insertions, 2 deletions

diff --git a/src/mongo/db/pipeline/document_source_limit.cpp b/src/mongo/db/pipeline/document_source_limit.cpp
index c358efa9441..cdc3ed2d0a6 100644
--- a/src/mongo/db/pipeline/document_source_limit.cpp
+++ b/src/mongo/db/pipeline/document_source_limit.cpp
@@ -28,11 +28,13 @@
 
 #include "mongo/platform/basic.h"
 
+#include "mongo/db/pipeline/document_source.h"
+
 #include "mongo/db/jsobj.h"
 #include "mongo/db/pipeline/document.h"
-#include "mongo/db/pipeline/document_source.h"
 #include "mongo/db/pipeline/expression.h"
 #include "mongo/db/pipeline/expression_context.h"
+#include "mongo/db/pipeline/lite_parsed_document_source.h"
 #include "mongo/db/pipeline/value.h"
 
 namespace mongo {
@@ -43,7 +45,9 @@ DocumentSourceLimit::DocumentSourceLimit(const intrusive_ptr<ExpressionContext>&
                                          long long limit)
     : DocumentSource(pExpCtx), _limit(limit) {}
 
-REGISTER_DOCUMENT_SOURCE(limit, DocumentSourceLimit::createFromBson);
+REGISTER_DOCUMENT_SOURCE(limit,
+                         LiteParsedDocumentSourceDefault::parse,
+                         DocumentSourceLimit::createFromBson);
 
 const char* DocumentSourceLimit::getSourceName() const {
     return "$limit";