feat: add state_explicit_vars config option

reflex/config.py

@@ -683,6 +683,9 @@ class Config(Base):
     # Path to file containing key-values pairs to override in the environment; Dotenv format.
     env_file: Optional[str] = None
 
+    # Whether to only make rx.Field annotated state attributes base vars
+    state_explicit_vars: bool = False
+
     def __init__(self, *args, **kwargs):
         """Initialize the config values.
 

reflex/state.py

@@ -536,11 +536,17 @@ class BaseState(Base, ABC, extra=pydantic.Extra.allow):
             **new_backend_vars,
         }
 
+        from reflex.vars.base import Field
+
         # Set the base and computed vars.
         cls.base_vars = {
             f.name: get_var_for_field(cls, f)
             for f in cls.get_fields().values()
             if f.name not in cls.get_skip_vars()
+            and (
+                not get_config().state_explicit_vars
+                or get_origin(f.outer_type_) is Field
+            )
         }
         cls.computed_vars = {
             v._js_expr: v._replace(merge_var_data=VarData.from_state(cls))

reflex/utils/types.py

@@ -689,6 +689,12 @@ def is_backend_base_variable(name: str, cls: Type) -> bool:
         if hint == ClassVar:
             return False
 
+        from reflex.config import get_config
+        from reflex.vars.base import Field
+
+        if get_config().state_explicit_vars and get_origin(hint) is not Field:
+            return False
+
     if name in cls.inherited_backend_vars:
         return False