Dispatcher improved.

Squidex.sln.DotSettings

@@ -2,6 +2,7 @@
 	<s:Boolean x:Key="/Default/CodeInspection/ExcludedFiles/FileMasksToSkip/=_002Aapp_002A_002A_002Ejs/@EntryIndexedValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeInspection/ExcludedFiles/FileMasksToSkip/=_002Aapp_002A_002A_002Ejs/@EntryIndexRemoved">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeInspection/ExcludedFiles/FileMasksToSkip/=_002Aapp_002F_002A_002A_002F_002A_002Ejs/@EntryIndexedValue">False</s:Boolean>
+	<s:Boolean x:Key="/Default/CodeInspection/ExcludedFiles/FileMasksToSkip/=_002ADispatching_002F_002A_002E_002A/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeInspection/ExcludedFiles/FileMasksToSkip/=_002A_002A_002Fapp_002F_002A_002A_002F_002A_002Ejs/@EntryIndexedValue">False</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeInspection/ExcludedFiles/FileMasksToSkip/=_002A_002A_002Fapp_002F_002A_002A_002F_002A_002Ejs/@EntryIndexRemoved">True</s:Boolean>
 	<s:Boolean x:Key="/Default/CodeInspection/ExcludedFiles/FileMasksToSkip/=_002A_002Ecshtml/@EntryIndexedValue">True</s:Boolean>

src/Squidex.Infrastructure/Dispatching/ActionContextDispatcher.cs

@@ -1,5 +1,5 @@
 // ==========================================================================
-//  ActionContextDispatcher.cs
+//  FuncDispatcher.cs
 //  Squidex Headless CMS
 // ==========================================================================
 //  Copyright (c) Squidex Group
@@ -7,7 +7,6 @@
 // ==========================================================================
 
 using System;
-using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 
@@ -15,29 +14,57 @@ namespace Squidex.Infrastructure.Dispatching
 {
     public sealed class ActionContextDispatcher<TTarget, TIn, TContext>
     {
-        private static readonly Dictionary<Type, Action<TTarget, object, TContext>> Handlers;
+        public delegate void ActionContextDelegate<in T>(TTarget target, T input, TContext context) where T : TIn;
 
-        static ActionContextDispatcher()
+        public static readonly Func<TTarget, TIn, TContext, bool> On = CreateHandler();
+
+        public static Func<TTarget, TIn, TContext, bool> CreateHandler(string methodName = "On")
         {
-            Handlers =
+            Guard.NotNullOrEmpty(methodName, nameof(methodName));
+
+            var handlers =
                 typeof(TTarget)
-                    .GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
-                    .Where(Helper.HasRightName)
-                    .Where(Helper.HasRightParameters<TIn, TContext>)
-                    .Select(ActionContextDispatcherFactory.CreateActionHandler<TTarget, TContext>)
-                    .ToDictionary(h => h.Item1, h => h.Item2);
-        }
+                    .GetMethods(
+                        BindingFlags.Public |
+                        BindingFlags.NonPublic |
+                        BindingFlags.Instance)
+                    .Where(m => Helper.HasRightName(m, methodName))
+                    .Where(m => Helper.HasRightParameters<TIn, TContext>(m))
+                    .Where(m => Helper.HasRightVoidReturn(m))
+                    .Select(m =>
+                    {
+                        var inputType = m.GetParameters()[0].ParameterType;
 
-        public static bool Dispatch(TTarget target, TIn input, TContext context)
-        {
-            if (!Handlers.TryGetValue(input.GetType(), out Action<TTarget, object, TContext> handler))
+                        var factoryMethod =
+                            typeof(ActionContextDispatcher<TTarget, TIn, TContext>)
+                                .GetMethod(nameof(Factory),
+                                    BindingFlags.Static |
+                                    BindingFlags.NonPublic)
+                                .MakeGenericMethod(inputType)
+                                .Invoke(null, new object[] { m });
+
+                        return (inputType, factoryMethod);
+                    })
+                    .ToDictionary(m => m.Item1, h => (ActionContextDelegate<TIn>)h.Item2);
+
+            return (target, input, context) =>
             {
+                if (handlers.TryGetValue(input.GetType(), out var handler))
+                {
+                    handler(target, input, context);
+
+                    return true;
+                }
+
                 return false;
-            }
+            };
+        }
 
-            handler(target, input, context);
+        private static ActionContextDelegate<TIn> Factory<T>(MethodInfo methodInfo) where T : TIn
+        {
+            var handler = (ActionContextDelegate<T>)methodInfo.CreateDelegate(typeof(ActionContextDelegate<T>));
 
-            return true;
+            return (target, input, context) => handler(target, (T)input, context);
         }
     }
 }

src/Squidex.Infrastructure/Dispatching/ActionContextDispatcherFactory.cs

@@ -1,41 +0,0 @@
-// ==========================================================================
-//  ActionContextDispatcherFactory.cs
-//  Squidex Headless CMS
-// ==========================================================================
-//  Copyright (c) Squidex Group
-//  All rights reserved.
-// ==========================================================================
-
-using System;
-using System.Reflection;
-
-// ReSharper disable UnusedMember.Local
-
-namespace Squidex.Infrastructure.Dispatching
-{
-    internal static class ActionContextDispatcherFactory
-    {
-        public static Tuple<Type, Action<TTarget, object, TContext>> CreateActionHandler<TTarget, TContext>(MethodInfo methodInfo)
-        {
-            var inputType = methodInfo.GetParameters()[0].ParameterType;
-
-            var factoryMethod =
-                typeof(ActionContextDispatcherFactory)
-                    .GetMethod("Factory", BindingFlags.Static | BindingFlags.NonPublic)
-                    .MakeGenericMethod(typeof(TTarget), inputType, typeof(TContext));
-
-            var handler = factoryMethod.Invoke(null, new object[] { methodInfo });
-
-            return new Tuple<Type, Action<TTarget, object, TContext>>(inputType, (Action<TTarget, object, TContext>)handler);
-        }
-
-        private static Action<TTarget, object, TContext> Factory<TTarget, TIn, TContext>(MethodInfo methodInfo)
-        {
-            var type = typeof(Action<TTarget, TIn, TContext>);
-
-            var handler = (Action<TTarget, TIn, TContext>)methodInfo.CreateDelegate(type);
-
-            return (target, input, context) => handler(target, (TIn)input, context);
-        }
-    }
-}

src/Squidex.Infrastructure/Dispatching/ActionDispatcher.cs

@@ -1,5 +1,5 @@
 // ==========================================================================
-//  ActionDispatcher.cs
+//  FuncDispatcher.cs
 //  Squidex Headless CMS
 // ==========================================================================
 //  Copyright (c) Squidex Group
@@ -7,7 +7,6 @@
 // ==========================================================================
 
 using System;
-using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 
@@ -15,29 +14,57 @@ namespace Squidex.Infrastructure.Dispatching
 {
     public sealed class ActionDispatcher<TTarget, TIn>
     {
-        private static readonly Dictionary<Type, Action<TTarget, object>> Handlers;
+        public delegate void ActionDelegate<in T>(TTarget target, T input) where T : TIn;
 
-        static ActionDispatcher()
+        public static readonly Func<TTarget, TIn, bool> On = CreateHandler();
+
+        public static Func<TTarget, TIn, bool> CreateHandler(string methodName = "On")
         {
-            Handlers =
+            Guard.NotNullOrEmpty(methodName, nameof(methodName));
+
+            var handlers =
                 typeof(TTarget)
-                    .GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
-                    .Where(Helper.HasRightName)
-                    .Where(Helper.HasRightParameters<TIn>)
-                    .Select(ActionDispatcherFactory.CreateActionHandler<TTarget>)
-                    .ToDictionary(h => h.Item1, h => h.Item2);
-        }
+                    .GetMethods(
+                        BindingFlags.Public |
+                        BindingFlags.NonPublic |
+                        BindingFlags.Instance)
+                    .Where(m => Helper.HasRightName(m, methodName))
+                    .Where(m => Helper.HasRightParameters<TIn>(m))
+                    .Where(m => Helper.HasRightVoidReturn(m))
+                    .Select(m =>
+                    {
+                        var inputType = m.GetParameters()[0].ParameterType;
 
-        public static bool Dispatch(TTarget target, TIn item)
-        {
-            if (!Handlers.TryGetValue(item.GetType(), out Action<TTarget, object> handler))
+                        var factoryMethod =
+                            typeof(ActionDispatcher<TTarget, TIn>)
+                                .GetMethod(nameof(Factory),
+                                    BindingFlags.Static |
+                                    BindingFlags.NonPublic)
+                                .MakeGenericMethod(inputType)
+                                .Invoke(null, new object[] { m });
+
+                        return (inputType, factoryMethod);
+                    })
+                    .ToDictionary(m => m.Item1, h => (ActionDelegate<TIn>)h.Item2);
+
+            return (target, input) =>
             {
+                if (handlers.TryGetValue(input.GetType(), out var handler))
+                {
+                    handler(target, input);
+
+                    return true;
+                }
+
                 return false;
-            }
+            };
+        }
 
-            handler(target, item);
+        private static ActionDelegate<TIn> Factory<T>(MethodInfo methodInfo) where T : TIn
+        {
+            var handler = (ActionDelegate<T>)methodInfo.CreateDelegate(typeof(ActionDelegate<T>));
 
-            return true;
+            return (target, input) => handler(target, (T)input);
         }
     }
 }

src/Squidex.Infrastructure/Dispatching/ActionDispatcherFactory.cs

@@ -1,41 +0,0 @@
-// ==========================================================================
-//  ActionDispatcherFactory.cs
-//  Squidex Headless CMS
-// ==========================================================================
-//  Copyright (c) Squidex Group
-//  All rights reserved.
-// ==========================================================================
-
-using System;
-using System.Reflection;
-
-// ReSharper disable UnusedMember.Local
-
-namespace Squidex.Infrastructure.Dispatching
-{
-    internal static class ActionDispatcherFactory
-    {
-        public static Tuple<Type, Action<T, object>> CreateActionHandler<T>(MethodInfo methodInfo)
-        {
-            var inputType = methodInfo.GetParameters()[0].ParameterType;
-
-            var factoryMethod =
-                typeof(ActionDispatcherFactory)
-                    .GetMethod("Factory", BindingFlags.Static | BindingFlags.NonPublic)
-                    .MakeGenericMethod(typeof(T), inputType);
-
-            var handler = factoryMethod.Invoke(null, new object[] { methodInfo });
-
-            return new Tuple<Type, Action<T, object>>(inputType, (Action<T, object>)handler);
-        }
-
-        private static Action<TTarget, object> Factory<TTarget, TIn>(MethodInfo methodInfo)
-        {
-            var type = typeof(Action<TTarget, TIn>);
-
-            var handler = (Action<TTarget, TIn>)methodInfo.CreateDelegate(type);
-
-            return (target, input) => handler(target, (TIn)input);
-        }
-    }
-}

src/Squidex.Infrastructure/Dispatching/DispatchExtensions.cs

@@ -14,17 +14,17 @@ namespace Squidex.Infrastructure.Dispatching
     {
         public static bool DispatchAction<TTarget, TIn>(this TTarget target, TIn input)
         {
-            return ActionDispatcher<TTarget, TIn>.Dispatch(target, input);
+            return ActionDispatcher<TTarget, TIn>.On(target, input);
         }
 
         public static bool DispatchAction<TTarget, TIn, TContext>(this TTarget target, TIn input, TContext context)
         {
-            return ActionContextDispatcher<TTarget, TIn, TContext>.Dispatch(target, input, context);
+            return ActionContextDispatcher<TTarget, TIn, TContext>.On(target, input, context);
         }
 
         public static async Task<bool> DispatchActionAsync<TTarget, TIn>(this TTarget target, TIn input)
         {
-            var task = FuncDispatcher<TTarget, TIn, Task>.Dispatch(target, input);
+            var task = FuncDispatcher<TTarget, TIn, Task>.On(target, input);
 
             if (task == null)
             {
@@ -38,7 +38,7 @@ namespace Squidex.Infrastructure.Dispatching
 
         public static async Task<bool> DispatchActionAsync<TTarget, TIn, TContext>(this TTarget target, TIn input, TContext context)
         {
-            var task = FuncContextDispatcher<TTarget, TIn, TContext, Task>.Dispatch(target, input, context);
+            var task = FuncContextDispatcher<TTarget, TIn, TContext, Task>.On(target, input, context);
 
             if (task == null)
             {
@@ -52,28 +52,28 @@ namespace Squidex.Infrastructure.Dispatching
 
         public static TOut DispatchFunc<TTarget, TIn, TOut>(this TTarget target, TIn input, TOut fallback)
         {
-            var result = FuncDispatcher<TTarget, TIn, TOut>.Dispatch(target, input);
+            var result = FuncDispatcher<TTarget, TIn, TOut>.On(target, input);
 
             return Equals(result, default(TOut)) ? fallback : result;
         }
 
         public static TOut DispatchFunc<TTarget, TIn, TContext, TOut>(this TTarget target, TIn input, TContext context, TOut fallback)
         {
-            var result = FuncContextDispatcher<TTarget, TIn, TContext, TOut>.Dispatch(target, input, context);
+            var result = FuncContextDispatcher<TTarget, TIn, TContext, TOut>.On(target, input, context);
 
             return Equals(result, default(TOut)) ? fallback : result;
         }
 
         public static Task<TOut> DispatchFuncAsync<TTarget, TIn, TOut>(this TTarget target, TIn input, TOut fallback)
         {
-            var result = FuncDispatcher<TTarget, TIn, Task<TOut>>.Dispatch(target, input);
+            var result = FuncDispatcher<TTarget, TIn, Task<TOut>>.On(target, input);
 
             return result ?? Task.FromResult(fallback);
         }
 
         public static Task<TOut> DispatchFuncAsync<TTarget, TIn, TContext, TOut>(this TTarget target, TIn input, TContext context, TOut fallback)
         {
-            var result = FuncContextDispatcher<TTarget, TIn, TContext, Task<TOut>>.Dispatch(target, input, context);
+            var result = FuncContextDispatcher<TTarget, TIn, TContext, Task<TOut>>.On(target, input, context);
 
             return result ?? Task.FromResult(fallback);
         }

src/Squidex.Infrastructure/Dispatching/FuncContextDispatcher.cs

@@ -6,8 +6,6 @@
 //  All rights reserved.
 // ==========================================================================
 
-using System;
-using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 
@@ -15,23 +13,47 @@ namespace Squidex.Infrastructure.Dispatching
 {
     public sealed class FuncContextDispatcher<TTarget, TIn, TContext, TOut>
     {
-        private static readonly Dictionary<Type, Func<TTarget, object, TContext, TOut>> Handlers;
+        public delegate TOut FuncContextDelegate<in T>(TTarget target, T input, TContext context) where T : TIn;
 
-        static FuncContextDispatcher()
+        public static readonly FuncContextDelegate<TIn> On = CreateHandler();
+
+        public static FuncContextDelegate<TIn> CreateHandler(string methodName = "On")
         {
-            Handlers =
+            Guard.NotNullOrEmpty(methodName, nameof(methodName));
+
+            var handlers =
                 typeof(TTarget)
-                    .GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
-                    .Where(Helper.HasRightName)
-                    .Where(Helper.HasRightParameters<TIn, TContext>)
-                    .Where(Helper.HasRightReturnType<TOut>)
-                    .Select(FuncContextDispatcherFactory.CreateFuncHandler<TTarget, TContext, TOut >)
-                    .ToDictionary(h => h.Item1, h => h.Item2);
+                    .GetMethods(
+                        BindingFlags.Public |
+                        BindingFlags.NonPublic |
+                        BindingFlags.Instance)
+                    .Where(m => Helper.HasRightName(m, methodName))
+                    .Where(m => Helper.HasRightParameters<TIn, TContext>(m))
+                    .Where(m => Helper.HasRightReturnType<TOut>(m))
+                    .Select(m =>
+                    {
+                        var inputType = m.GetParameters()[0].ParameterType;
+
+                        var factoryMethod =
+                            typeof(FuncContextDispatcher<TTarget, TIn, TContext, TOut>)
+                                .GetMethod(nameof(Factory),
+                                    BindingFlags.Static |
+                                    BindingFlags.NonPublic)
+                                .MakeGenericMethod(inputType)
+                                .Invoke(null, new object[] { m });
+
+                        return (inputType, factoryMethod);
+                    })
+                    .ToDictionary(m => m.Item1, h => (FuncContextDelegate<TIn>)h.Item2);
+
+            return (target, input, context) => handlers.TryGetValue(input.GetType(), out var handler) ? handler(target, input, context) : default(TOut);
         }
 
-        public static TOut Dispatch(TTarget target, TIn item, TContext context)
+        private static FuncContextDelegate<TIn> Factory<T>(MethodInfo methodInfo) where T : TIn
         {
-            return Handlers.TryGetValue(item.GetType(), out Func<TTarget, object, TContext, TOut> handler) ? handler(target, item, context) : default(TOut);
+            var handler = (FuncContextDelegate<T>)methodInfo.CreateDelegate(typeof(FuncContextDelegate<T>));
+
+            return (target, input, context) => handler(target, (T)input, context);
         }
     }
 }

src/Squidex.Infrastructure/Dispatching/FuncContextDispatcherFactory.cs

@@ -1,41 +0,0 @@
-// ==========================================================================
-//  FuncContextDispatcherFactory.cs
-//  Squidex Headless CMS
-// ==========================================================================
-//  Copyright (c) Squidex Group
-//  All rights reserved.
-// ==========================================================================
-
-using System;
-using System.Reflection;
-
-// ReSharper disable UnusedMember.Local
-
-namespace Squidex.Infrastructure.Dispatching
-{
-    internal static class FuncContextDispatcherFactory
-    {
-        public static Tuple<Type, Func<TTarget, object, TContext, TOut>> CreateFuncHandler<TTarget, TContext, TOut>(MethodInfo methodInfo)
-        {
-            var inputType = methodInfo.GetParameters()[0].ParameterType;
-
-            var factoryMethod =
-                typeof(FuncContextDispatcherFactory)
-                    .GetMethod("Factory", BindingFlags.Static | BindingFlags.NonPublic)
-                    .MakeGenericMethod(typeof(TTarget), inputType, typeof(TContext), methodInfo.ReturnType);
-
-            var handler = factoryMethod.Invoke(null, new object[] { methodInfo });
-
-            return new Tuple<Type, Func<TTarget, object, TContext, TOut>>(inputType, (Func<TTarget, object, TContext, TOut>)handler);
-        }
-
-        private static Func<TTarget, object, TContext, TOut> Factory<TTarget, TIn, TContext, TOut>(MethodInfo methodInfo)
-        {
-            var type = typeof(Func<TTarget, TIn, TContext, TOut>);
-
-            var handler = (Func<TTarget, TIn, TContext, TOut>)methodInfo.CreateDelegate(type);
-
-            return (target, input, context) => handler(target, (TIn)input, context);
-        }
-    }
-}

src/Squidex.Infrastructure/Dispatching/FuncDispatcher.cs

@@ -6,8 +6,6 @@
 //  All rights reserved.
 // ==========================================================================
 
-using System;
-using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 
@@ -15,23 +13,47 @@ namespace Squidex.Infrastructure.Dispatching
 {
     public sealed class FuncDispatcher<TTarget, TIn, TOut>
     {
-        private static readonly Dictionary<Type, Func<TTarget, object, TOut>> Handlers;
+        public delegate TOut FuncDelegate<in T>(TTarget target, T input) where T : TIn;
 
-        static FuncDispatcher()
+        public static readonly FuncDelegate<TIn> On = CreateHandler();
+
+        public static FuncDelegate<TIn> CreateHandler(string methodName = "On")
         {
-            Handlers =
+            Guard.NotNullOrEmpty(methodName, nameof(methodName));
+
+            var handlers =
                 typeof(TTarget)
-                    .GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
-                    .Where(Helper.HasRightName)
-                    .Where(Helper.HasRightParameters<TIn>)
-                    .Where(Helper.HasRightReturnType<TOut>)
-                    .Select(FuncDispatcherFactory.CreateFuncHandler<TTarget, TOut>)
-                    .ToDictionary(h => h.Item1, h => h.Item2);
+                    .GetMethods(
+                        BindingFlags.Public |
+                        BindingFlags.NonPublic |
+                        BindingFlags.Instance)
+                    .Where(m => Helper.HasRightName(m, methodName))
+                    .Where(m => Helper.HasRightParameters<TIn>(m))
+                    .Where(m => Helper.HasRightReturnType<TOut>(m))
+                    .Select(m =>
+                    {
+                        var inputType = m.GetParameters()[0].ParameterType;
+
+                        var factoryMethod =
+                            typeof(FuncDispatcher<TTarget, TIn, TOut>)
+                                .GetMethod(nameof(Factory),
+                                    BindingFlags.Static |
+                                    BindingFlags.NonPublic)
+                                .MakeGenericMethod(inputType)
+                                .Invoke(null, new object[] { m });
+
+                        return (inputType, factoryMethod);
+                    })
+                    .ToDictionary(m => m.Item1, h => (FuncDelegate<TIn>)h.Item2);
+
+            return (target, input) => handlers.TryGetValue(input.GetType(), out var handler) ? handler(target, input) : default(TOut);
         }
 
-        public static TOut Dispatch(TTarget target, TIn item)
+        private static FuncDelegate<TIn> Factory<T>(MethodInfo methodInfo) where T : TIn
         {
-            return Handlers.TryGetValue(item.GetType(), out Func<TTarget, object, TOut> handler) ? handler(target, item) : default(TOut);
+            var handler = (FuncDelegate<T>)methodInfo.CreateDelegate(typeof(FuncDelegate<T>));
+
+            return (target, input) => handler(target, (T)input);
         }
     }
 }

src/Squidex.Infrastructure/Dispatching/FuncDispatcherFactory.cs

@@ -1,41 +0,0 @@
-// ==========================================================================
-//  FuncDispatcherFactory.cs
-//  Squidex Headless CMS
-// ==========================================================================
-//  Copyright (c) Squidex Group
-//  All rights reserved.
-// ==========================================================================
-
-using System;
-using System.Reflection;
-
-// ReSharper disable once UnusedMember.Local
-
-namespace Squidex.Infrastructure.Dispatching
-{
-    internal static class FuncDispatcherFactory
-    {
-        public static Tuple<Type, Func<TTarget, object, TReturn>> CreateFuncHandler<TTarget, TReturn>(MethodInfo methodInfo)
-        {
-            var inputType = methodInfo.GetParameters()[0].ParameterType;
-
-            var factoryMethod =
-                typeof(FuncDispatcherFactory)
-                    .GetMethod("Factory", BindingFlags.Static | BindingFlags.NonPublic)
-                    .MakeGenericMethod(typeof(TTarget), inputType, methodInfo.ReturnType);
-
-            var handler = factoryMethod.Invoke(null, new object[] { methodInfo });
-
-            return new Tuple<Type, Func<TTarget, object, TReturn>>(inputType, (Func<TTarget, object, TReturn>)handler);
-        }
-
-        private static Func<TTarget, object, TReturn> Factory<TTarget, TIn, TReturn>(MethodInfo methodInfo)
-        {
-            var type = typeof(Func<TTarget, TIn, TReturn>);
-
-            var handler = (Func<TTarget, TIn, TReturn>)methodInfo.CreateDelegate(type);
-
-            return (target, input) => handler(target, (TIn)input);
-        }
-    }
-}

src/Squidex.Infrastructure/Dispatching/Helper.cs

@@ -13,6 +13,11 @@ namespace Squidex.Infrastructure.Dispatching
 {
     internal static class Helper
     {
+        public static bool HasRightName(MethodInfo method, string name)
+        {
+            return string.Equals(method.Name, name, StringComparison.OrdinalIgnoreCase);
+        }
+
         public static bool HasRightName(MethodInfo method)
         {
             return string.Equals(method.Name, "On", StringComparison.OrdinalIgnoreCase);
@@ -23,6 +28,11 @@ namespace Squidex.Infrastructure.Dispatching
             return method.ReturnType == typeof(TOut);
         }
 
+        public static bool HasRightVoidReturn(MethodInfo method)
+        {
+            return method.ReturnType == typeof(void);
+        }
+
         public static bool HasRightParameters<TIn>(MethodInfo method)
         {
             var parameters = method.GetParameters();