From 0480f1e9841d731937d5bf468ff24821a0126fdf Mon Sep 17 00:00:00 2001
From: Chris Forbes <chrisf@ijw.co.nz>
Date: Sat, 5 Mar 2011 21:53:23 +1300
Subject: [PATCH] Avoid constructing a delegate on every TraitDict query --
 saving 250M/min

---
 OpenRA.Game/TraitDictionary.cs | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/OpenRA.Game/TraitDictionary.cs b/OpenRA.Game/TraitDictionary.cs
index 7d995c9a90..0524cbb765 100755
--- a/OpenRA.Game/TraitDictionary.cs
+++ b/OpenRA.Game/TraitDictionary.cs
@@ -17,17 +17,19 @@ namespace OpenRA
 {
 	class TraitDictionary
 	{
-		Dictionary<Type, ITraitContainer> traits = new Dictionary<Type, ITraitContainer>();
-
+		Dictionary<Type, ITraitContainer> traits = new Dictionary<Type, ITraitContainer>();
+
 		ITraitContainer InnerGet( Type t )
 		{
-			return traits.GetOrAdd( t, CreateTraitContainer );
-		}
-
+			return traits.GetOrAdd( t, doCreateTraitContainer );
+		}
+
+		// construct this delegate once.
+		static Func<Type, ITraitContainer> doCreateTraitContainer = CreateTraitContainer;
 		static ITraitContainer CreateTraitContainer( Type t )
 		{
 			return (ITraitContainer)typeof( TraitContainer<> ).MakeGenericType( t )
-				.GetConstructor( new Type[ 0 ] ).Invoke( new object[ 0 ] );
+				.GetConstructor( Type.EmptyTypes ).Invoke( null );
 		}
 
 		public void AddTrait( Actor actor, object val )