In errors, store chunk ids as `ChunkId`, not `String`

Fixes #114.

2 files changed, 6 insertions, 4 deletions

diff --git a/src/client.rs b/src/client.rs
index b1f9976..92d825f 100644
--- a/src/client.rs
+++ b/src/client.rs
@@ -27,10 +27,10 @@ pub enum ClientError {
     NotFound(String),
 
     #[error("Server does not have chunk {0}")]
-    ChunkNotFound(String),
+    ChunkNotFound(ChunkId),
 
     #[error("Server does not have generation {0}")]
-    GenerationNotFound(String),
+    GenerationNotFound(ChunkId),
 
     #[error("Server response did not have a 'chunk-meta' header for chunk {0}")]
     NoChunkMeta(ChunkId),
diff --git a/src/genlist.rs b/src/genlist.rs
index 9d7e39d..21f558c 100644
--- a/src/genlist.rs
+++ b/src/genlist.rs
@@ -8,7 +8,7 @@ pub struct GenerationList {
 #[derive(Debug, thiserror::Error)]
 pub enum GenerationListError {
     #[error("Unknown generation: {0}")]
-    UnknownGeneration(String),
+    UnknownGeneration(ChunkId),
 }
 
 impl GenerationList {
@@ -42,7 +42,9 @@ impl GenerationList {
             }
         };
         match gen {
-            None => Err(GenerationListError::UnknownGeneration(genref.to_string())),
+            None => Err(GenerationListError::UnknownGeneration(ChunkId::recreate(
+                genref,
+            ))),
             Some(gen) => Ok(gen.id().to_string()),
         }
     }