From c310c020bbbf811fde75be1e9ddfeb8941ad819a Mon Sep 17 00:00:00 2001
From: benedikt-bartscher
 <31854409+benedikt-bartscher@users.noreply.github.com>
Date: Sat, 21 Dec 2024 01:27:07 +0100
Subject: [PATCH] Minor performance improvements for state getattribute and
 setattr (#4543)

---
 reflex/state.py | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/reflex/state.py b/reflex/state.py
index e7e6bcf32..1cd3e2c3e 100644
--- a/reflex/state.py
+++ b/reflex/state.py
@@ -1240,13 +1240,16 @@ class BaseState(Base, ABC, extra=pydantic.Extra.allow):
         if not super().__getattribute__("__dict__"):
             return super().__getattribute__(name)
 
-        inherited_vars = {
-            **super().__getattribute__("inherited_vars"),
-            **super().__getattribute__("inherited_backend_vars"),
-        }
+        # Fast path for dunder
+        if name.startswith("__"):
+            return super().__getattribute__(name)
 
         # For now, handle router_data updates as a special case.
-        if name in inherited_vars or name == constants.ROUTER_DATA:
+        if (
+            name == constants.ROUTER_DATA
+            or name in super().__getattribute__("inherited_vars")
+            or name in super().__getattribute__("inherited_backend_vars")
+        ):
             parent_state = super().__getattribute__("parent_state")
             if parent_state is not None:
                 return getattr(parent_state, name)
@@ -1301,8 +1304,7 @@ class BaseState(Base, ABC, extra=pydantic.Extra.allow):
             value = value.__wrapped__
 
         # Set the var on the parent state.
-        inherited_vars = {**self.inherited_vars, **self.inherited_backend_vars}
-        if name in inherited_vars:
+        if name in self.inherited_vars or name in self.inherited_backend_vars:
             setattr(self.parent_state, name, value)
             return