Add Value::consume() to create an Array-typed Value without copying

Currently few places construct arrays, but more are coming soon. Note
that this can't be used for things like $push's getValue() since that
can be called multiple times so the array needs to be preserved.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mongo/db/pipeline/document.h b/src/mongo/db/pipeline/document.h
index 375cd48faa3..77c04bafb3f 100644
--- a/src/mongo/db/pipeline/document.h
+++ b/src/mongo/db/pipeline/document.h
@@ -467,7 +467,7 @@ namespace mongo {
             return *this << Value(val);
         }
 
-        Value done() { return Value(_array); }
+        Value done() { return Value::consume(_array); }
 
     private:
         vector<Value> _array;