addToStore, addToStoreFromDump: refactor: pass refs by const reference

Co-Authored-By: Eelco Dolstra <edolstra@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstore/remote-store.hh b/src/libstore/remote-store.hh
index 31eb1871a..9c3e0bf05 100644
--- a/src/libstore/remote-store.hh
+++ b/src/libstore/remote-store.hh
@@ -73,7 +73,7 @@ public:
 
     /* Add a content-addressable store path. Does not support references. `dump` will be drained. */
     StorePath addToStoreFromDump(Source & dump, const string & name,
-        FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair, StorePathSet references = StorePathSet()) override;
+        FileIngestionMethod method = FileIngestionMethod::Recursive, HashType hashAlgo = htSHA256, RepairFlag repair = NoRepair, const StorePathSet & references = StorePathSet()) override;
 
     void addToStore(const ValidPathInfo & info, Source & nar,
         RepairFlag repair, CheckSigsFlag checkSigs) override;