Improve Debug implementation of Handle

crates/fj-kernel/src/stores/store.rs

@@ -21,7 +21,10 @@
 //!
 //! But in any case, this was fun to write, and not that much work.
 
-use std::{fmt, hash::Hash, iter, marker::PhantomData, ops::Deref, sync::Arc};
+use std::{
+ any::type_name, fmt, hash::Hash, iter, marker::PhantomData, ops::Deref,
+ sync::Arc,
+};
 
 use parking_lot::RwLock;
 
@@ -222,7 +225,18 @@ where
 
 impl<T> fmt::Debug for Handle<T> {
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
- f.debug_struct("Handle").field("id", &self.id()).finish()
+ let name = {
+ let type_name = type_name::<T>();
+ match type_name.rsplit_once("::") {
+ Some((_, name)) => name,
+ None => type_name,
+ }
+ };
+ let id = self.id();
+
+ write!(f, "{name} @ {id:#x}")?;
+
+ Ok(())
  }
 }