chore(tvix/store): Use BoxStream type alias r/7435

The BoxStream type alias is a more concise and easier to read than
the full `Pin<Box<dyn Stream<Item = ...> + Send + ...>>` type.

Change-Id: I5b7bccfd066ded5557e01f7895f4cf5c4a33bd44
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10677
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Autosubmit: Connor Brewster <cbrewster@hey.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/tvix/castore/src/directoryservice/mod.rs b/tvix/castore/src/directoryservice/mod.rs
index a82c4d785dbd..db3d5767eadd 100644
--- a/tvix/castore/src/directoryservice/mod.rs
+++ b/tvix/castore/src/directoryservice/mod.rs
@@ -1,6 +1,5 @@
 use crate::{proto, B3Digest, Error};
-use futures::Stream;
-use std::pin::Pin;
+use futures::stream::BoxStream;
 use tonic::async_trait;
 
 mod from_addr;
@@ -44,7 +43,7 @@ pub trait DirectoryService: Send + Sync {
     fn get_recursive(
         &self,
         root_directory_digest: &B3Digest,
-    ) -> Pin<Box<dyn Stream<Item = Result<proto::Directory, Error>> + Send>>;
+    ) -> BoxStream<Result<proto::Directory, Error>>;
 
     /// Allows persisting a closure of [proto::Directory], which is a graph of
     /// connected Directory messages.