Add __slots__ to Maybe subclasses

HKGx · Oct 18, 2023 · 9ad8674 · 9ad8674
1 parent be96ca2
commit 9ad8674
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/perhaps/maybe.py b/perhaps/maybe.py
@@ -3,6 +3,8 @@
 
 
 class Maybe[T](ABC):
+    __slots__ = ()
+
     value: Union[T, NoReturn]
 
     @abstractmethod
@@ -202,6 +204,7 @@ def __repr__(self) -> str:
 
 class Just[T](Maybe[T]):
     __match_args__ = ("value",)
+    __slots__ = ("value",)
 
     value: T
 
@@ -296,6 +299,7 @@ def __repr__(self) -> str:
 
 class Nothing[T](Maybe[T]):
     __match_args__ = ()
+    __slots__ = ()
 
     instance: Optional["Nothing[T]"] = None