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-rw-r--r--plumbing/object/commitnode.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/plumbing/object/commitnode.go b/plumbing/object/commitnode.go
index 22927f4..ce25487 100644
--- a/plumbing/object/commitnode.go
+++ b/plumbing/object/commitnode.go
@@ -25,6 +25,9 @@ type CommitNode interface {
ParentNode(i int) (CommitNode, error)
// ParentHashes returns hashes of the parent commits for a specified node
ParentHashes() []plumbing.Hash
+ // Generation returns the generation of the commit for reachability analysis.
+ // Objects with newer generation are not reachable from objects of older generation.
+ Generation() uint64
// Commit returns the full commit object from the node
Commit() (*Commit, error)
}