Hmm

cspr-rad · Mar 20, 2024 · aca044d · aca044d
1 parent bf53774
commit aca044d
Show file tree

Hide file tree

Showing 3 changed files with 188 additions and 142 deletions.
diff --git a/src/stored.rs b/src/stored.rs
@@ -32,6 +32,23 @@ impl<V, S: Store<V>> Store<V> for &S {
     }
 }
 
+/// A `Store` that always panics when accessed.
+pub(crate) struct UnreachableStore;
+
+impl<V> Store<V> for UnreachableStore {
+    type Error = core::convert::Infallible;
+
+    #[inline(always)]
+    fn calc_subtree_hash(&self, _hash_idx: Idx) -> Result<NodeHash, Self::Error> {
+        unreachable!("UnreachableStore")
+    }
+
+    #[inline(always)]
+    fn get_node(&self, _hash_idx: Idx) -> Result<Node<&Branch<Idx>, &Leaf<V>>, Self::Error> {
+        unreachable!("UnreachableStore")
+    }
+}
+
 pub trait DatabaseGet<V> {
     type GetError: Display;