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-rw-r--r--tvix/castore/src/directoryservice/mod.rs4
1 files changed, 4 insertions, 0 deletions
diff --git a/tvix/castore/src/directoryservice/mod.rs b/tvix/castore/src/directoryservice/mod.rs
index 3b26f4baf79b..65beeef4a26c 100644
--- a/tvix/castore/src/directoryservice/mod.rs
+++ b/tvix/castore/src/directoryservice/mod.rs
@@ -58,6 +58,10 @@ pub trait DirectoryService: Send + Sync {
 /// The consumer can periodically call [DirectoryPutter::put], starting from the
 /// leaves. Once the root is reached, [DirectoryPutter::close] can be called to
 /// retrieve the root digest (or an error).
+///
+/// DirectoryPutters might be created without a single [put], and then dropped
+/// without calling [close], for example when ingesting a path that ends up not
+/// pointing to a directory, but a single file or symlink.
 #[async_trait]
 pub trait DirectoryPutter: Send {
     /// Put a individual [proto::Directory] into the store.