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-rw-r--r--src/libstore/store-api.hh3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libstore/store-api.hh b/src/libstore/store-api.hh
index 802591766af7..13dcd9269d3a 100644
--- a/src/libstore/store-api.hh
+++ b/src/libstore/store-api.hh
@@ -113,6 +113,9 @@ public:
     /* Check whether a path is valid. */ 
     virtual bool isValidPath(const Path & path) = 0;
 
+    /* Query which of the given paths is valid. */
+    virtual PathSet queryValidPaths(const PathSet & paths) = 0;
+
     /* Query the set of all valid paths. */
     virtual PathSet queryAllValidPaths() = 0;