From 29cfd02f7828d92136fce32e0cb888e9dd9fd2ba Mon Sep 17 00:00:00 2001
From: rowanbeentje <rowan@beent.je>
Date: Mon, 5 Oct 2009 22:35:23 +0000
Subject: Tiny tweak: make isNSNull checks ~3x faster

---
 Frameworks/MCPKit/MCPFoundationKit/MCPNull.m | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'Frameworks/MCPKit/MCPFoundationKit')

diff --git a/Frameworks/MCPKit/MCPFoundationKit/MCPNull.m b/Frameworks/MCPKit/MCPFoundationKit/MCPNull.m
index 5d3f4523..76d9cfb1 100644
--- a/Frameworks/MCPKit/MCPFoundationKit/MCPNull.m
+++ b/Frameworks/MCPKit/MCPFoundationKit/MCPNull.m
@@ -35,7 +35,9 @@
  */
 - (BOOL) isNSNull
 {
-    return [self isMemberOfClass:[NSNull class]];
+	static id NSNullForComparison;
+	if (!NSNullForComparison) NSNullForComparison = [NSNull null];;
+    return (self == NSNullForComparison);
 }
 
 @end
-- 
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