diff options
Diffstat (limited to 'src/dag_backend.rs')
| -rw-r--r-- | src/dag_backend.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/dag_backend.rs b/src/dag_backend.rs index 2be9736..09dc428 100644 --- a/src/dag_backend.rs +++ b/src/dag_backend.rs @@ -4,7 +4,6 @@ // file, You can obtain one at http://mozilla.org/MPL/2.0/. // -use anyhow::Result; use async_trait::async_trait; use crate::Node; @@ -20,6 +19,8 @@ where N: Node, Id: NodeId + Send, { + type Error; + /// Get a `Node` from the backend that is identified by `id` /// /// # Returns @@ -27,12 +28,12 @@ where /// * Should return Err(_) if the operation failed. /// * Should return Ok(None) if there is no node that is identified by `id` /// * Otherwise return the Id along with the node identified by it - async fn get(&self, id: Id) -> Result<Option<(Id, N)>>; + async fn get(&self, id: Id) -> Result<Option<(Id, N)>, Self::Error>; /// Store a `node` in the backend, returning its `Id` /// /// This function should store the `node` in the backend and return the `id` the node has. - async fn put(&mut self, node: N) -> Result<Id>; + async fn put(&mut self, node: N) -> Result<Id, Self::Error>; } #[cfg(test)] |