+WeakKeyReferenceDictionary

collections/WeakKeyReferenceDictionary.cs

@@ -0,0 +1,31 @@
+// /**
+//  * File: WeakKeyReferenceDictionary.cs
+//  * Author: haraldwolff
+//  *
+//  * This file and it's content is copyrighted by the Author and / or copyright holder.
+//  * Any use wihtout proper permission is illegal and may lead to legal actions.
+//  *
+//  *
+//  **/
+using System;
+using System.Runtime.CompilerServices;
+namespace ln.types.collections
+{
+    public class WeakKeyReferenceDictionary<K,V> : WeakKeyDictionary<K,V> where K:class
+    {
+        public WeakKeyReferenceDictionary()
+        {
+        }
+
+        public override bool KeyEquals(K key1, K key2)
+        {
+            return Object.ReferenceEquals(key1, key2);
+        }
+
+        public override int GetKeyHashcode(K key)
+        {
+            return RuntimeHelpers.GetHashCode(key);
+        }
+
+    }
+}

ln.types.csproj

@@ -124,6 +124,7 @@
     <Compile Include="test\Test.cs" />
     <Compile Include="collections\WeakValueDictionary.cs" />
     <Compile Include="test\WeakValueDictionaryTests.cs" />
+    <Compile Include="collections\WeakKeyReferenceDictionary.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="odb\" />