okay actually not bad

selfdrive/car/data_test_kinda_works_chatgpt.py

@@ -1,44 +1,33 @@
 # import attr
 from dataclasses import dataclass, field
 from typing import Any, List
+from enum import auto
 
-class AutoDefault:
-    """Marker class for fields that should automatically get a default."""
-    def __init__(self, factory: Any = None):
-        self.factory = factory
+auto_obj = object()
 
-def auto_factory(factory=None):
-    """Function to return AutoDefault instance."""
-    return AutoDefault(factory=factory)
 
 def apply_auto_defaults(cls):
   cls_annotations = cls.__annotations__
   for name, typ in cls_annotations.items():
     current_value = getattr(cls, name, None)
-        if isinstance(current_value, AutoDefault):
-            if current_value.factory is not None:
-                setattr(cls, name, field(default_factory=current_value.factory))
-            else:
-                # Handle specific default types here or raise an error
+    if current_value is auto_obj:
       setattr(cls, name, field(default_factory=typ))
-                # if typ == bool:
-                #     setattr(cls, name, attr.field(default=False))
-                # elif typ == list:
-                #     setattr(cls, name, attr.field(factory=list))
-                # elif typ == dict:
-                #     setattr(cls, name, attr.field(factory=dict))
-                # else:
-                #     raise ValueError(f"No default or factory defined for type {typ}")
   return cls
 
+
+def auto_factory():
+  return auto_obj
+
+
 @dataclass
 @apply_auto_defaults
 class CarControl:
-    enabled: bool = auto_factory()  # Automatically get a default of False
-    pts: list[int] = auto_factory()  # Automatically get an empty list as the default
+  enabled: bool = auto_factory()
+  pts: list[int] = auto_factory()
+  logMonoTime: list[int] = field(default_factory=lambda: [1, 2, 3])
 
 
 # This will now work with default values set by the decorator
-car_control_instance = CarControl(enabled=True,)
+car_control_instance = CarControl()
 print(car_control_instance.enabled)  # Should print False
 print(car_control_instance.pts)  # Should print []