Fixup test bitswap. mypy

src/peakrdl_regblock/field_logic/sw_onread.py

@@ -8,7 +8,7 @@ if TYPE_CHECKING:
     from systemrdl.node import FieldNode
 
 class _OnRead(NextStateConditional):
-    onreadtype = None
+    onreadtype = None # type: OnReadType
     def is_match(self, field: 'FieldNode') -> bool:
         return field.get_property('onread') == self.onreadtype
 

src/peakrdl_regblock/field_logic/sw_onwrite.py

@@ -10,7 +10,7 @@ if TYPE_CHECKING:
 # TODO: implement sw=w1 "write once" fields
 
 class _OnWrite(NextStateConditional):
-    onwritetype = None
+    onwritetype = None # type: OnWriteType
     def is_match(self, field: 'FieldNode') -> bool:
         return field.is_sw_writable and field.get_property('onwrite') == self.onwritetype