Ough, there's snapshot_optional_type

sterliakov · sterliakov · commit 7b78230d701b · 2025-11-05T13:26:41.000+01:00
diff --git a/mypy/server/astdiff.py b/mypy/server/astdiff.py
@@ -471,7 +471,7 @@ def visit_callable_type(self, typ: CallableType) -> SnapshotItem:
             typ.is_ellipsis_args,
             snapshot_types(typ.variables),
             typ.is_bound,
-            snapshot_types([typ.original_self_type] if typ.original_self_type is not None else []),
+            snapshot_optional_type(typ.original_self_type),
         )
 
     def normalize_callable_variables(self, typ: CallableType) -> CallableType:

Original file line number	Diff line number	Diff line change
`@@ -471,7 +471,7 @@ def visit_callable_type(self, typ: CallableType) -> SnapshotItem:`
`471`	`471`	`typ.is_ellipsis_args,`
`472`	`472`	`snapshot_types(typ.variables),`
`473`	`473`	`typ.is_bound,`
`474`		`- snapshot_types([typ.original_self_type] if typ.original_self_type is not None else []),`
	`474`	`+ snapshot_optional_type(typ.original_self_type),`
`475`	`475`	`)`
`476`	`476`
`477`	`477`	`def normalize_callable_variables(self, typ: CallableType) -> CallableType:`