apply clippy lints

1 files changed, 13 insertions, 3 deletions

diff --git a/src/undo.rs b/src/undo.rs
index 1044c63..5effd79 100644
--- a/src/undo.rs
+++ b/src/undo.rs
@@ -67,9 +67,10 @@ where
         if let Some(p) = self.position {
             self.position = p.checked_sub(1);
             // we want to return a clone and not a reference because push deletes the item
-            return Some(self.operations[p as usize].clone());
+            Some(self.operations[p as usize].clone())
+        } else {
+            None
         }
-        return None;
     }
 
     pub fn redo(&mut self) -> Option<T> {
@@ -82,7 +83,16 @@ where
             self.position = Some(0);
             return Some(self.operations[0].clone());
         }
-        return None;
+        None
+    }
+}
+
+impl<T> std::default::Default for UndoStack<T>
+where
+    T: Clone,
+{
+    fn default() -> Self {
+        UndoStack::new()
     }
 }