feat(left-right-tlcache): use thiserror

Use thiserror for ReadHandleCacheError to easily integrate cache
errors.

Signed-off-by: Fredi Raspall <[email protected]>

Author: Fredi-raspall

Cargo.lock

@@ -8,3 +8,4 @@ license = "Apache-2.0"
 [dependencies]
 left-right = { workspace = true }
 ahash = { workspace = true }
+thiserror = { workspace = true }

left-right-tlcache/Cargo.toml

@@ -34,6 +34,7 @@ use std::collections::HashMap;
 use std::hash::Hash;
 use std::rc::Rc;
 use std::thread::LocalKey;
+use thiserror::Error;
 
 pub trait ReadHandleProvider {
     type Data;
@@ -46,9 +47,11 @@ pub trait ReadHandleProvider {
     fn get_factory(&self, key: &Self::Key) -> Option<&ReadHandleFactory<Self::Data>>;
 }
 
-#[derive(Debug)]
+#[derive(Debug, PartialEq, Error)]
 pub enum ReadHandleCacheError<K> {
+    #[error("Reader not found for key {0}")]
     NotFound(K),
+    #[error("Reader for key {0} is not accessible")]
     NotAccessible(K),
 }