Handle type subscript

Author: zenlyj

pylint/checkers/variables.py

@@ -2542,11 +2542,12 @@ def _is_never_evaluated(
 
     @staticmethod
     def _is_variable_annotation_in_function(node: nodes.Name) -> bool:
+        ann_assign = utils.get_node_first_ancestor_of_type(node, nodes.AnnAssign)
         return (
-            isinstance(node.parent, nodes.AnnAssign)
-            and node is node.parent.annotation
+            ann_assign
+            and (node is ann_assign.annotation or ann_assign.annotation.parent_of(node))
             and utils.get_node_first_ancestor_of_type(  # type: ignore[return-value]
-                node.parent, nodes.FunctionDef
+                ann_assign, nodes.FunctionDef
             )
         )
 

tests/functional/u/used/used_before_assignment_scoping.py

@@ -16,3 +16,10 @@ def func():
     first = datetime.now()  # [used-before-assignment]
     second = datetime.now()
     return first, second
+
+
+def annotated_declaration_with_type_subscript():
+    dt_list: list[datetime]
+    dt_list = [datetime.now(), datetime.now()]  # [used-before-assignment]
+
+    return dt_list

tests/functional/u/used/used_before_assignment_scoping.txt

@@ -1,2 +1,3 @@
 used-before-assignment:10:13:10:21:func_two:Using variable 'datetime' before assignment:INFERENCE
 used-before-assignment:16:12:16:20:func:Using variable 'datetime' before assignment:INFERENCE
+used-before-assignment:23:15:23:23:annotated_declaration_with_type_subscript:Using variable 'datetime' before assignment:INFERENCE