From a7a03513bfb8e95a8f4cb09219f141174bea3c64 Mon Sep 17 00:00:00 2001
From: Valentin Lorentz <progval+git@progval.net>
Date: Fri, 22 May 2020 08:38:30 +0200
Subject: [PATCH] ircutils: Set __slots__.

---
 src/ircutils.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ircutils.py b/src/ircutils.py
index 858f2764f..8440a876e 100644
--- a/src/ircutils.py
+++ b/src/ircutils.py
@@ -691,6 +691,7 @@ def unDccIP(i):
 
 class IrcString(str):
     """This class does case-insensitive comparison and hashing of nicks."""
+    __slots__ = ('lowered',)
     def __new__(cls, s=''):
         x = super(IrcString, cls).__new__(cls, s)
         x.lowered = str(toLower(x))
@@ -711,12 +712,14 @@ class IrcString(str):
 
 class IrcDict(utils.InsensitivePreservingDict):
     """Subclass of dict to make key comparison IRC-case insensitive."""
+    __slots__ = ()
     def key(self, s):
         if s is not None:
             s = toLower(s)
         return s
 
 class CallableValueIrcDict(IrcDict):
+    __slots__ = ()
     def __getitem__(self, k):
         v = super(IrcDict, self).__getitem__(k)
         if callable(v):
@@ -725,6 +728,7 @@ class CallableValueIrcDict(IrcDict):
 
 class IrcSet(utils.NormalizingSet):
     """A sets.Set using IrcStrings instead of regular strings."""
+    __slots__ = ()
     def normalize(self, s):
         return IrcString(s)