From 3e3d77fdaff8874bdbcae32811af5de0f3602ac6 Mon Sep 17 00:00:00 2001
From: Dan <14043624+delivrance@users.noreply.github.com>
Date: Mon, 24 Aug 2020 09:20:10 +0200
Subject: [PATCH] Implement short-circuit evaluation for filters AND and OR
 operations will not evaluate the second operand in case the first one is,
 respectively, False and True.

---
 pyrogram/filters.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pyrogram/filters.py b/pyrogram/filters.py
index 45762aee..e9b177ae 100644
--- a/pyrogram/filters.py
+++ b/pyrogram/filters.py
@@ -70,6 +70,10 @@ class AndFilter(Filter):
                 client, update
             )
 
+        # short circuit
+        if not x:
+            return False
+
         if inspect.iscoroutinefunction(self.other.__call__):
             y = await self.other(client, update)
         else:
@@ -97,6 +101,10 @@ class OrFilter(Filter):
                 client, update
             )
 
+        # short circuit
+        if x:
+            return True
+
         if inspect.iscoroutinefunction(self.other.__call__):
             y = await self.other(client, update)
         else: